/* roulang page: index */
:root {
            --brand-primary: #0F3D2E;
            --brand-primary-dark: #0A2B20;
            --brand-accent: #C9A227;
            --brand-accent-light: #D8B54E;
            --brand-accent-bg: #F5E9C8;
            --bg-warm: #F7F4EC;
            --bg-light-green: #EEF2ED;
            --bg-white: #FFFFFF;
            --text-primary: #22241F;
            --text-secondary: #5C5F58;
            --text-on-dark: #F7F4EC;
            --border-soft: rgba(15, 61, 46, 0.10);
            --border-accent: rgba(201, 162, 39, 0.45);
            --radius-card: 10px;
            --radius-sm: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
            --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
            --spacing-section: 80px;
            --spacing-card: 28px;
            --left-nav-width: 240px;
            --left-nav-width-mid: 200px;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
            --header-height: 80px;
            --fixed-bar-height: 64px;
            --fixed-bar-height-mobile: 56px;
            --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus-visible {
            text-decoration: none;
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
        }

        h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 28px;
            font-weight: 650;
            line-height: 1.3;
        }

        h3 {
            font-size: 21px;
            font-weight: 600;
            line-height: 1.4;
        }

        p {
            margin: 0 0 1.2em;
        }

        ul, ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 左侧竖向导航 ========== */
        .left-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--left-nav-width);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: width 0.35s ease, transform 0.35s ease;
        }

        .left-nav__logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-shrink: 0;
        }

        .left-nav__logo a {
            display: block;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            line-height: 1;
            text-align: center;
        }

        .left-nav__logo a:hover {
            color: var(--brand-accent-light);
        }

        .left-nav__menu {
            flex: 1;
            overflow-y: auto;
            padding: 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .left-nav__item {
            display: flex;
            align-items: center;
            padding: 11px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.82);
            position: relative;
            transition: var(--transition-base);
            line-height: 1.3;
        }

        .left-nav__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .left-nav__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            padding-left: 22px;
        }

        .left-nav__item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--brand-accent);
            border-radius: 0 3px 3px 0;
        }

        .left-nav__footer {
            padding: 16px 18px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            font-size: 12px;
            color: rgba(247, 244, 236, 0.55);
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            flex-shrink: 0;
        }

        .left-nav__footer a {
            color: rgba(247, 244, 236, 0.55);
            font-size: 12px;
        }

        .left-nav__footer a:hover {
            color: var(--brand-accent-light);
        }

        .left-nav__toggle {
            display: none;
        }

        /* ========== 右侧内容区 ========== */
        .main-content {
            margin-left: var(--left-nav-width);
            transition: margin-left 0.35s ease;
            min-height: 100vh;
        }

        /* ========== 顶部移动端导航 ========== */
        .mobile-topbar {
            display: none;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, #F7F4EC 0%, #EEF2ED 100%);
            overflow: hidden;
            padding: 80px 0 64px;
        }

        .hero__bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }

        .hero__inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .hero__text {
            flex: 1 1 55%;
            min-width: 300px;
        }

        .hero__text .hero-label {
            display: inline-block;
            background: rgba(201, 162, 39, 0.15);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .hero__text h1 {
            font-size: 40px;
            margin-bottom: 16px;
        }

        .hero__text p {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 540px;
        }

        .hero__cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 28px;
        }

        .hero__visual {
            flex: 1 1 40%;
            min-width: 300px;
            position: relative;
        }

        .hero__visual img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }

        .hero__badges {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero__badge {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero__badge .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-primary);
            font-family: var(--font-numeric);
            line-height: 1.1;
        }

        .hero__badge .desc {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section--white {
            background: var(--bg-white);
        }

        .section--green {
            background: var(--bg-light-green);
        }

        .section--dark {
            background: var(--brand-primary);
        }

        .section__head {
            margin-bottom: 40px;
        }

        .section__head h2 {
            margin-bottom: 10px;
        }

        .section__head p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 700px;
        }

        .section__head--center {
            text-align: center;
        }

        .section__head--center p {
            margin-left: auto;
            margin-right: auto;
        }

        .badge-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-primary);
            background: rgba(15, 61, 46, 0.08);
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: 8px;
            transition: var(--transition-base);
            line-height: 1;
            letter-spacing: 0.3px;
        }

        .btn--primary {
            background: var(--brand-primary);
            color: var(--text-on-dark);
        }

        .btn--primary:hover {
            background: var(--brand-primary-dark);
            transform: translateY(-2px);
            color: var(--text-on-dark);
        }

        .btn--primary:active {
            transform: translateY(0);
        }

        .btn--outline {
            background: transparent;
            border: 1.5px solid var(--brand-accent);
            color: var(--brand-primary);
        }

        .btn--outline:hover {
            background: var(--brand-accent-bg);
            transform: translateY(-2px);
            color: var(--brand-primary);
        }

        .btn--accent {
            background: var(--brand-accent);
            color: var(--brand-primary);
            box-shadow: var(--shadow-accent-glow);
        }

        .btn--accent:hover {
            background: var(--brand-accent-light);
            color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .btn--sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
        }

        .btn-link-arrow:hover {
            color: var(--brand-accent);
        }

        .btn-link-arrow .arrow {
            display: inline-block;
            transition: transform 0.25s ease;
        }

        .btn-link-arrow:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-card);
            transition: var(--transition-base);
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 61, 46, 0.18);
            transform: translateY(-2px);
        }

        .card__icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1.5px solid var(--brand-primary);
            color: var(--brand-primary);
            font-size: 20px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card h3 {
            margin-bottom: 8px;
            font-size: 19px;
        }

        .card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== 拼团玩法 ========== */
        .groupon-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-soft);
        }

        .groupon-step:last-child {
            border-bottom: none;
        }

        .groupon-step__number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: var(--text-on-dark);
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-numeric);
        }

        .groupon-step__content h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }

        .groupon-step__content p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 热门拼单 ========== */
        .deal-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .deal-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 61, 46, 0.18);
        }

        .deal-card__img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-light-green);
        }

        .deal-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .deal-card:hover .deal-card__img img {
            transform: scale(1.04);
        }

        .deal-card__body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .deal-card__tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-accent);
            background: var(--brand-accent-bg);
            padding: 3px 10px;
            border-radius: 4px;
            display: inline-block;
        }

        .deal-card h3 {
            font-size: 17px;
            line-height: 1.4;
        }

        .deal-card__progress {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .deal-card__progress .bar {
            flex: 1;
            height: 6px;
            background: var(--bg-light-green);
            border-radius: 6px;
            overflow: hidden;
        }

        .deal-card__progress .bar-fill {
            height: 100%;
            background: var(--brand-accent);
            border-radius: 6px;
        }

        .deal-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }

        .deal-card__footer .price {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand-primary);
            font-family: var(--font-numeric);
        }

        /* ========== 新闻中心 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border-soft);
            transition: var(--transition-base);
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            padding-left: 8px;
        }

        .news-item__date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 60px;
            height: 60px;
            background: var(--bg-light-green);
            border-radius: 6px;
            padding: 6px 10px;
            flex-shrink: 0;
        }

        .news-item__date .day {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand-primary);
            font-family: var(--font-numeric);
            line-height: 1;
        }

        .news-item__date .month {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .news-item__content h3 {
            font-size: 17px;
            margin-bottom: 6px;
        }

        .news-item__content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        /* ========== 任务进度 ========== */
        .progress-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .progress-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .progress-item__label {
            min-width: 110px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
        }

        .progress-item__bar {
            flex: 1;
            height: 8px;
            background: var(--bg-light-green);
            border-radius: 8px;
            overflow: hidden;
        }

        .progress-item__bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
            border-radius: 8px;
            transition: width 0.6s ease;
        }

        .progress-item__val {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            font-family: var(--font-numeric);
            min-width: 40px;
            text-align: right;
        }

        /* ========== 渠道卖点 ========== */
        .channel-point {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 0;
        }

        .channel-point__icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(201, 162, 39, 0.15);
            color: var(--brand-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
            font-size: 16px;
        }

        .channel-point h3 {
            font-size: 16px;
            margin-bottom: 4px;
        }

        .channel-point p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== 数据指标 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stat-item .num {
            font-size: 48px;
            font-weight: 700;
            color: var(--brand-accent-light);
            font-family: var(--font-numeric);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-item .label {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.7);
            font-weight: 500;
        }

        /* ========== 用户评价 ========== */
        .review-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
            transition: var(--transition-base);
        }

        .review-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .review-card__stars {
            color: var(--brand-accent);
            font-size: 14px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

        .review-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .review-card__author {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-primary);
        }

        /* ========== FAQ 手风琴 ========== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--brand-accent);
            box-shadow: 0 4px 16px rgba(15, 61, 46, 0.08);
        }

        .faq-item__trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            line-height: 1.4;
        }

        .faq-item__trigger .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light-green);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .faq-item.active .faq-item__trigger .icon {
            background: var(--brand-accent);
            color: var(--brand-primary);
            transform: rotate(45deg);
        }

        .faq-item__panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-item__panel {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-item__panel p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA 开团入口 ========== */
        .cta-open {
            background: var(--brand-primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-open::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 162, 39, 0.12);
            pointer-events: none;
        }

        .cta-open h2 {
            color: var(--text-on-dark);
            font-size: 26px;
            margin-bottom: 8px;
            position: relative;
            z-index: 2;
        }

        .cta-open p {
            color: rgba(247, 244, 236, 0.75);
            font-size: 15px;
            margin: 0;
            position: relative;
            z-index: 2;
        }

        .cta-open .btn {
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-convert-bar {
            position: fixed;
            left: var(--left-nav-width);
            right: 0;
            bottom: 0;
            height: var(--fixed-bar-height);
            background: rgba(15, 61, 46, 0.95);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            z-index: 90;
            transform: translateY(100%);
            transition: transform 0.4s ease, left 0.35s ease;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
        }

        .fixed-convert-bar.visible {
            transform: translateY(0);
        }

        .fixed-convert-bar__text {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-on-dark);
        }

        .fixed-convert-bar .btn {
            padding: 10px 20px;
            font-size: 14px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            padding: 60px 0 32px;
        }

        .site-footer .container {
            position: relative;
        }

        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
        }

        .footer-col h3 {
            color: var(--text-on-dark);
            font-size: 16px;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(247, 244, 236, 0.65);
            font-size: 14px;
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--brand-accent-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 24px 0;
            flex-wrap: wrap;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
        }

        .footer-middle__brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 1px;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            flex: 1;
            max-width: 360px;
        }

        .footer-subscribe input {
            flex: 1;
            background: transparent;
            border: 1.5px solid rgba(247, 244, 236, 0.4);
            border-radius: 6px;
            padding: 10px 14px;
            color: var(--text-on-dark);
            font-size: 14px;
        }

        .footer-subscribe input::placeholder {
            color: rgba(247, 244, 236, 0.5);
        }

        .footer-subscribe .btn {
            padding: 10px 18px;
            font-size: 14px;
            white-space: nowrap;
        }

        .footer-bottom {
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(247, 244, 236, 0.55);
        }

        .footer-bottom a {
            color: rgba(247, 244, 236, 0.65);
        }

        .footer-bottom a:hover {
            color: var(--brand-accent-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(247, 244, 236, 0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --left-nav-width: 200px;
                --spacing-section: 60px;
            }

            .left-nav {
                width: var(--left-nav-width);
            }

            .main-content {
                margin-left: var(--left-nav-width);
            }

            .fixed-convert-bar {
                left: var(--left-nav-width);
            }

            h1 {
                font-size: 34px;
            }

            h2 {
                font-size: 25px;
            }

            .hero {
                min-height: auto;
                padding: 60px 0 48px;
            }

            .hero__inner {
                flex-direction: column;
                align-items: stretch;
            }

            .hero__text,
            .hero__visual {
                flex: 1 1 auto;
                min-width: auto;
            }

            .hero__visual img {
                aspect-ratio: 16 / 10;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-top {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --left-nav-width: 0;
                --spacing-section: 48px;
                --header-height: 60px;
                --fixed-bar-height: 56px;
                --spacing-card: 18px;
            }

            .left-nav {
                width: 280px;
                transform: translateX(-100%);
                transition: transform 0.35s ease, width 0.35s ease;
            }

            .left-nav.open {
                transform: translateX(0);
                width: 280px;
            }

            .left-nav__logo {
                height: 60px;
                font-size: 22px;
            }

            .left-nav__menu {
                padding: 16px 12px;
            }

            .main-content {
                margin-left: 0;
            }

            .fixed-convert-bar {
                left: 0;
                height: var(--fixed-bar-height);
                padding: 0 16px;
            }

            .mobile-topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                height: 60px;
                background: var(--brand-primary);
                color: var(--text-on-dark);
                padding: 0 16px;
                position: sticky;
                top: 0;
                z-index: 95;
            }

            .mobile-topbar__logo {
                font-size: 20px;
                font-weight: 700;
                letter-spacing: 1px;
                color: var(--text-on-dark);
            }

            .mobile-topbar__btn {
                width: 40px;
                height: 40px;
                display: flex;
                align-items: center;
                justify-content: center;
                color: var(--text-on-dark);
                font-size: 22px;
                background: none;
                border: 1px solid rgba(247, 244, 236, 0.3);
                border-radius: 6px;
            }

            /* 遮罩 */
            .nav-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.45);
                z-index: 85;
            }

            .nav-overlay.visible {
                display: block;
            }

            h1 {
                font-size: 28px;
            }

            h2 {
                font-size: 22px;
            }

            h3 {
                font-size: 18px;
            }

            .hero {
                padding: 40px 0 36px;
            }

            .hero__cta {
                gap: 10px;
            }

            .hero__badges {
                gap: 20px;
            }

            .hero__badge .num {
                font-size: 22px;
            }

            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }

            .stats-grid {
                gap: 12px;
            }

            .stat-item .num {
                font-size: 36px;
            }

            .cta-open {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }

            .cta-open .btn {
                width: 100%;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-middle {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-subscribe {
                width: 100%;
                max-width: none;
            }

            .news-item {
                flex-direction: column;
                gap: 12px;
            }

            .news-item__date {
                min-width: auto;
                width: fit-content;
                height: auto;
                flex-direction: row;
                gap: 6px;
                padding: 4px 10px;
            }

            .news-item__date .day {
                font-size: 16px;
            }

            .fixed-convert-bar__text {
                font-size: 13px;
            }

            .fixed-convert-bar .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .section {
                padding: 36px 0;
            }

            .hero {
                padding: 28px 0 24px;
            }

            .hero__text h1 {
                font-size: 24px;
            }

            .hero__text p {
                font-size: 15px;
            }

            h2 {
                font-size: 20px;
            }

            .btn {
                width: 100%;
                padding: 12px 16px;
            }

            .hero__cta {
                flex-direction: column;
            }

            .hero__cta .btn {
                width: 100%;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }

            .card {
                padding: 16px;
            }

            .faq-item__trigger {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-item__panel p {
                font-size: 14px;
            }

            .cta-open h2 {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #0F3D2E;
            --brand-primary-dark: #0A2B20;
            --brand-accent: #C9A227;
            --brand-accent-light: #D8B54E;
            --brand-accent-bg: #F5E9C8;
            --bg-warm: #F7F4EC;
            --bg-light-green: #EEF2ED;
            --bg-white: #FFFFFF;
            --text-primary: #22241F;
            --text-secondary: #5C5F58;
            --text-on-dark: #F7F4EC;
            --border-soft: rgba(15, 61, 46, 0.10);
            --border-accent: rgba(201, 162, 39, 0.45);
            --radius-card: 10px;
            --radius-sm: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
            --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
            --spacing-section: 80px;
            --spacing-card: 28px;
            --left-nav-width: 240px;
            --left-nav-width-mid: 200px;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
            --header-height: 80px;
            --fixed-bar-height: 64px;
            --fixed-bar-height-mobile: 56px;
            --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }
        @media (max-width: 1024px) {
            :root {
                --left-nav-width: 200px;
                --spacing-section: 60px;
                --spacing-card: 22px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --left-nav-width: 0;
                --spacing-section: 48px;
                --header-height: 60px;
                --fixed-bar-height: 56px;
                --spacing-card: 18px;
            }
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover,
        a:focus-visible {
            text-decoration: none;
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }
        input {
            font-family: inherit;
            transition: var(--transition-base);
        }
        input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            box-sizing: border-box;
        }
        /* ========== 左侧竖向导航 ========== */
        .left-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--left-nav-width);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: width 0.35s ease, transform 0.35s ease;
        }
        .left-nav__logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-shrink: 0;
        }
        .left-nav__logo a {
            display: block;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            line-height: 1;
            text-align: center;
        }
        .left-nav__logo a:hover {
            color: var(--brand-accent-light);
        }
        .left-nav__menu {
            flex: 1;
            overflow-y: auto;
            padding: 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .left-nav__item {
            display: flex;
            align-items: center;
            padding: 11px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.82);
            position: relative;
            transition: var(--transition-base);
            line-height: 1.3;
        }
        .left-nav__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }
        .left-nav__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            padding-left: 22px;
        }
        .left-nav__item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--brand-accent);
            border-radius: 0 3px 3px 0;
        }
        .left-nav__footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 12px;
        }
        .left-nav__footer a {
            color: rgba(247, 244, 236, 0.65);
            font-size: 12px;
        }
        .left-nav__footer a:hover {
            color: var(--brand-accent-light);
        }
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--brand-primary);
            color: var(--text-on-dark);
            z-index: 99;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.16);
        }
        .mobile-toggle__brand {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-on-dark);
        }
        .mobile-toggle__btn {
            color: var(--text-on-dark);
            font-size: 22px;
            background: none;
            border: none;
            padding: 6px 10px;
        }
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.45);
            z-index: 98;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .nav-overlay.show {
            display: block;
            opacity: 1;
        }
        @media (max-width: 768px) {
            .left-nav {
                transform: translateX(-100%);
                width: 260px;
                z-index: 100;
            }
            .left-nav.open {
                transform: translateX(0);
            }
            .mobile-toggle {
                display: flex;
            }
            body {
                padding-top: 56px;
            }
        }
        /* ========== 主内容区 ========== */
        .main-content {
            margin-left: var(--left-nav-width);
            transition: margin-left 0.35s ease;
        }
        @media (max-width: 768px) {
            .main-content {
                margin-left: 0;
            }
        }
        /* ========== 窄版 Hero ========== */
        .page-hero {
            background: linear-gradient(180deg, #F7F4EC 0%, #EEF2ED 100%);
            padding: 48px 0 36px;
            border-bottom: 1px solid var(--border-soft);
        }
        .page-hero__inner {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 32px;
            align-items: center;
        }
        .page-hero__content h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin: 0 0 12px;
            color: var(--text-primary);
        }
        .page-hero__content .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            margin: 0 0 16px;
            line-height: 1.8;
            max-width: 620px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--brand-primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--brand-accent);
        }
        .breadcrumb span {
            color: var(--text-secondary);
        }
        .page-hero__visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
            aspect-ratio: 4/3;
        }
        .page-hero__visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 32px 0 24px;
            }
            .page-hero__inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-hero__content h1 {
                font-size: 28px;
            }
            .page-hero__content .subtitle {
                font-size: 15px;
            }
        }
        /* ========== 趋势列表卡片流（左图右文） ========== */
        .trend-section {
            padding: 56px 0;
            background: var(--bg-white);
        }
        .trend-section__header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 16px;
        }
        .trend-section__header h2 {
            font-size: 28px;
            font-weight: 650;
            line-height: 1.3;
            margin: 0;
            color: var(--text-primary);
        }
        .trend-section__header .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--brand-primary);
            background: var(--brand-accent-bg);
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
            margin-bottom: 8px;
        }
        .trend-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .trend-card {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 24px;
            padding: 20px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            background: var(--bg-warm);
            transition: var(--transition-base);
            align-items: center;
        }
        .trend-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-2px);
            background: var(--bg-white);
        }
        .trend-card__thumb {
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/10;
            border: 1px solid var(--border-soft);
        }
        .trend-card__thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .trend-card:hover .trend-card__thumb img {
            transform: scale(1.04);
        }
        .trend-card__body {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .trend-card__meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .trend-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--brand-primary);
            background: var(--brand-accent-bg);
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }
        .trend-date {
            font-family: var(--font-numeric);
            font-size: 13px;
            color: var(--text-secondary);
        }
        .trend-card__body h3 {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.4;
            margin: 0;
            color: var(--text-primary);
        }
        .trend-card__body p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .trend-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--brand-primary);
            letter-spacing: 0.3px;
            margin-top: 4px;
        }
        .trend-card__link .arrow {
            transition: transform 0.25s ease;
            color: var(--brand-accent);
            font-weight: 700;
        }
        .trend-card__link:hover .arrow {
            transform: translateX(4px);
        }
        .trend-card__link:hover {
            color: var(--brand-accent);
        }
        @media (max-width: 768px) {
            .trend-section {
                padding: 36px 0;
            }
            .trend-section__header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .trend-section__header h2 {
                font-size: 22px;
            }
            .trend-card {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 16px;
            }
            .trend-card__thumb {
                aspect-ratio: 16/9;
            }
        }
        /* ========== 深度分析区块 ========== */
        .deep-section {
            padding: 64px 0;
            background: var(--bg-light-green);
        }
        .deep-section__inner {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .deep-section__text h2 {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.3;
            margin: 0 0 16px;
            color: var(--text-primary);
        }
        .deep-section__text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0 0 16px;
        }
        .deep-section__text ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .deep-section__text ul li {
            position: relative;
            padding-left: 20px;
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.7;
        }
        .deep-section__text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            background: var(--brand-accent);
            border-radius: 2px;
            transform: rotate(45deg);
        }
        .deep-section__visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
        }
        .deep-section__visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        @media (max-width: 768px) {
            .deep-section {
                padding: 40px 0;
            }
            .deep-section__inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-section__text h2 {
                font-size: 22px;
            }
        }
        /* ========== 数据指标横条 ========== */
        .metrics-section {
            padding: 48px 0;
            background: var(--brand-primary);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .metric-item {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .metric-item__number {
            font-family: var(--font-numeric);
            font-size: 44px;
            font-weight: 700;
            color: var(--brand-accent-light);
            line-height: 1.1;
        }
        .metric-item__label {
            font-size: 13px;
            color: rgba(247, 244, 236, 0.72);
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .metric-item__number {
                font-size: 32px;
            }
        }
        @media (max-width: 480px) {
            .metrics-section {
                padding: 32px 0;
            }
            .metrics-grid {
                gap: 14px;
            }
            .metric-item__number {
                font-size: 26px;
            }
            .metric-item__label {
                font-size: 12px;
            }
        }
        /* ========== 方法论卡片 ========== */
        .method-section {
            padding: 64px 0;
            background: var(--bg-white);
        }
        .method-section h2 {
            font-size: 26px;
            font-weight: 650;
            margin: 0 0 28px;
            color: var(--text-primary);
            text-align: center;
        }
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .method-card {
            padding: 28px 24px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            background: var(--bg-warm);
            transition: var(--transition-base);
            text-align: left;
        }
        .method-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }
        .method-card__icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: var(--brand-accent-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 22px;
            color: var(--brand-primary);
        }
        .method-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            margin: 0 0 10px;
            color: var(--text-primary);
        }
        .method-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .method-section {
                padding: 40px 0;
            }
            .method-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .method-card {
                padding: 20px 16px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .method-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        /* ========== FAQ 手风琴 ========== */
        .faq-section {
            padding: 56px 0;
            background: var(--bg-light-green);
        }
        .faq-section h2 {
            font-size: 26px;
            font-weight: 650;
            margin: 0 0 28px;
            color: var(--text-primary);
            text-align: center;
        }
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-card {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            background: var(--bg-white);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-card.open {
            border-color: var(--brand-accent);
            box-shadow: var(--shadow-hover);
        }
        .faq-card__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.6;
        }
        .faq-card__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-accent-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-primary);
            transition: transform 0.3s ease;
        }
        .faq-card.open .faq-card__icon {
            transform: rotate(45deg);
        }
        .faq-card__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-card.open .faq-card__answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        @media (max-width: 768px) {
            .faq-section {
                padding: 36px 0;
            }
            .faq-card__question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-card__answer {
                font-size: 13px;
            }
            .faq-card.open .faq-card__answer {
                padding: 0 16px 14px;
            }
        }
        /* ========== CTA 横条 ========== */
        .cta-section {
            padding: 48px 0;
            background: var(--bg-warm);
        }
        .cta-banner {
            background: var(--brand-primary);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            color: var(--text-on-dark);
            box-shadow: var(--shadow-card);
        }
        .cta-banner__text {
            flex: 1;
        }
        .cta-banner__text h2 {
            font-size: 22px;
            font-weight: 650;
            margin: 0 0 8px;
            color: var(--text-on-dark);
            line-height: 1.4;
        }
        .cta-banner__text p {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.75);
            margin: 0;
            line-height: 1.6;
        }
        .cta-banner__btn {
            flex-shrink: 0;
            background: var(--brand-accent);
            color: var(--brand-primary-dark);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.5px;
            box-shadow: var(--shadow-accent-glow);
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .cta-banner__btn:hover {
            background: var(--brand-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 162, 39, 0.5);
        }
        @media (max-width: 768px) {
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
                gap: 16px;
            }
            .cta-banner__text h2 {
                font-size: 18px;
            }
            .cta-banner__btn {
                width: 100%;
                text-align: center;
                padding: 12px 24px;
                font-size: 15px;
            }
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--brand-primary-dark);
            color: var(--text-on-dark);
            padding: 48px 0 24px;
            margin-left: var(--left-nav-width);
            transition: margin-left 0.35s ease;
        }
        @media (max-width: 768px) {
            .site-footer {
                margin-left: 0;
            }
        }
        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 32px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 14px;
            color: var(--brand-accent-light);
            letter-spacing: 0.4px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: rgba(247, 244, 236, 0.7);
            transition: var(--transition-base);
        }
        .footer-col ul a:hover {
            color: var(--brand-accent-light);
            text-decoration: none;
        }
        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 0;
            border-top: 1px solid rgba(247, 244, 236, 0.1);
            border-bottom: 1px solid rgba(247, 244, 236, 0.1);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .footer-middle__brand {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
        }
        .footer-subscribe {
            display: flex;
            gap: 10px;
            align-items: center;
            flex: 1;
            max-width: 420px;
        }
        .footer-subscribe input {
            flex: 1;
            background: transparent;
            border: 1px solid rgba(247, 244, 236, 0.4);
            border-radius: 6px;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text-on-dark);
            min-width: 0;
        }
        .footer-subscribe input::placeholder {
            color: rgba(247, 244, 236, 0.45);
        }
        .footer-subscribe input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 0;
        }
        .footer-bottom {
            font-size: 12px;
            color: rgba(247, 244, 236, 0.6);
            line-height: 2;
        }
        .footer-bottom a {
            color: rgba(247, 244, 236, 0.6);
            transition: var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--brand-accent-light);
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(247, 244, 236, 0.35);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            white-space: nowrap;
            border: 0;
        }
        @media (max-width: 768px) {
            .footer-top {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-middle {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }
            .footer-subscribe {
                width: 100%;
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        /* ========== 底部固定转化条 ========== */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: var(--left-nav-width);
            right: 0;
            height: var(--fixed-bar-height);
            background: rgba(15, 61, 46, 0.95);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            z-index: 90;
            opacity: 0;
            transform: translateY(100%);
            transition: opacity 0.35s ease, transform 0.35s ease, left 0.35s ease;
            box-shadow: 0 -2px 16px rgba(0,0,0,0.1);
        }
        .fixed-cta.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .fixed-cta__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }
        .fixed-cta__text {
            font-size: 14px;
            color: var(--text-on-dark);
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .fixed-cta__btn {
            background: var(--brand-accent);
            color: var(--brand-primary-dark);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.5px;
            box-shadow: var(--shadow-accent-glow);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .fixed-cta__btn:hover {
            background: var(--brand-accent-light);
            transform: translateY(-1px);
        }
        @media (max-width: 768px) {
            .fixed-cta {
                left: 0;
                height: var(--fixed-bar-height-mobile);
            }
            .fixed-cta__text {
                font-size: 13px;
            }
            .fixed-cta__btn {
                padding: 9px 16px;
                font-size: 13px;
            }
        }
        @media (max-width: 480px) {
            .fixed-cta__inner {
                gap: 10px;
            }
            .fixed-cta__text {
                font-size: 12px;
                line-height: 1.4;
            }
            .fixed-cta__btn {
                padding: 8px 14px;
                font-size: 12px;
            }
        }
        /* ========== 工具类 ========== */
        .text-accent {
            color: var(--brand-accent);
        }
        .text-brand {
            color: var(--brand-primary);
        }
        .mt-0 { margin-top: 0; }
        .mb-0 { margin-bottom: 0; }
        .text-center { text-align: center; }

/* roulang page: category3 */
:root {
            --brand-primary: #0F3D2E;
            --brand-primary-dark: #0A2B20;
            --brand-accent: #C9A227;
            --brand-accent-light: #D8B54E;
            --brand-accent-bg: #F5E9C8;
            --bg-warm: #F7F4EC;
            --bg-light-green: #EEF2ED;
            --bg-white: #FFFFFF;
            --text-primary: #22241F;
            --text-secondary: #5C5F58;
            --text-on-dark: #F7F4EC;
            --border-soft: rgba(15, 61, 46, 0.10);
            --border-accent: rgba(201, 162, 39, 0.45);
            --radius-card: 10px;
            --radius-sm: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
            --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
            --spacing-section: 80px;
            --spacing-card: 28px;
            --left-nav-width: 240px;
            --left-nav-width-mid: 200px;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
            --header-height: 80px;
            --fixed-bar-height: 64px;
            --fixed-bar-height-mobile: 56px;
            --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus-visible {
            text-decoration: none;
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 左侧竖向导航 ========== */
        .left-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--left-nav-width);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: width 0.35s ease, transform 0.35s ease;
        }

        .left-nav__logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-shrink: 0;
        }

        .left-nav__logo a {
            display: block;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            line-height: 1;
            text-align: center;
        }

        .left-nav__logo a:hover {
            color: var(--brand-accent-light);
        }

        .left-nav__menu {
            flex: 1;
            overflow-y: auto;
            padding: 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .left-nav__item {
            display: flex;
            align-items: center;
            padding: 11px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.82);
            position: relative;
            transition: var(--transition-base);
            line-height: 1.3;
        }

        .left-nav__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .left-nav__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            padding-left: 22px;
        }

        .left-nav__item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--brand-accent);
            border-radius: 0 3px 3px 0;
        }

        .left-nav__footer {
            padding: 16px 12px 20px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            display: flex;
            flex-wrap: wrap;
            gap: 4px 10px;
            font-size: 11px;
            color: rgba(247, 244, 236, 0.65);
            flex-shrink: 0;
        }

        .left-nav__footer a {
            color: rgba(247, 244, 236, 0.65);
            transition: var(--transition-base);
        }

        .left-nav__footer a:hover {
            color: var(--brand-accent-light);
        }

        /* ========== 移动端顶部导航 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--brand-primary);
            z-index: 100;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.12);
        }

        .mobile-header__logo a {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 1px;
        }

        .mobile-header__toggle {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-on-dark);
            font-size: 20px;
            border-radius: 6px;
            transition: var(--transition-base);
        }

        .mobile-header__toggle:hover {
            background: rgba(247, 244, 236, 0.10);
            color: var(--brand-accent-light);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--brand-primary);
            z-index: 99;
            padding: 80px 20px 20px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            transform: translateY(-100%);
            transition: transform 0.35s ease;
        }

        .mobile-drawer.open {
            transform: translateY(0);
        }

        .mobile-drawer__close {
            position: absolute;
            top: 12px;
            right: 16px;
            width: 40px;
            height: 40px;
            color: var(--text-on-dark);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
        }

        .mobile-drawer__close:hover {
            background: rgba(247, 244, 236, 0.10);
            color: var(--brand-accent-light);
        }

        .mobile-drawer__item {
            padding: 14px 16px;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.85);
            transition: var(--transition-base);
            border-bottom: 1px solid rgba(247, 244, 236, 0.08);
        }

        .mobile-drawer__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .mobile-drawer__item.active {
            color: var(--brand-accent-light);
            background: rgba(27, 94, 74, 0.55);
        }

        .mobile-drawer__footer {
            margin-top: auto;
            padding-top: 16px;
            font-size: 12px;
            color: rgba(247, 244, 236, 0.60);
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }

        .mobile-drawer__footer a {
            color: rgba(247, 244, 236, 0.60);
        }

        .mobile-drawer__footer a:hover {
            color: var(--brand-accent-light);
        }

        /* ========== 主内容区 ========== */
        .main-content {
            margin-left: var(--left-nav-width);
            min-height: 100vh;
            transition: margin-left 0.35s ease;
            padding-top: 0;
        }

        /* ========== Hero ========== */
        .hero-guide {
            background: linear-gradient(180deg, #F7F4EC 0%, #EEF2ED 100%);
            padding: 70px 0 60px;
            border-bottom: 1px solid var(--border-soft);
            position: relative;
            overflow: hidden;
        }

        .hero-guide__grid {
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }

        .hero-guide__text {
            flex: 1 1 520px;
        }

        .hero-guide__text h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .hero-guide__text h1 em {
            font-style: normal;
            color: var(--brand-accent);
            border-bottom: 2px solid var(--brand-accent);
            padding-bottom: 2px;
        }

        .hero-guide__subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-guide__cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-guide__panel {
            flex: 1 1 340px;
            max-width: 400px;
            margin-left: auto;
        }

        .group-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
            padding: 28px;
            transition: var(--transition-base);
        }

        .group-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .group-card__title {
            font-size: 18px;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .group-card__title i {
            color: var(--brand-accent);
            font-size: 20px;
        }

        .group-card__desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .group-card__counter {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .group-card__avatars {
            display: flex;
            align-items: center;
        }

        .group-card__avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--bg-white);
            margin-right: -8px;
        }

        .group-card__avatar:last-child {
            margin-right: 0;
        }

        .group-card__count {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
        }

        .group-card__count strong {
            font-size: 20px;
            color: var(--brand-accent);
            font-family: var(--font-numeric);
        }

        .group-card__progress {
            width: 100%;
            height: 6px;
            border-radius: 3px;
            background: var(--bg-light-green);
            overflow: hidden;
            margin-bottom: 16px;
        }

        .group-card__progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--brand-accent), var(--brand-accent-light));
            border-radius: 3px;
            transition: width 0.4s ease;
        }

        .group-card__buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            transition: var(--transition-base);
            line-height: 1.2;
            text-align: center;
        }

        .btn--primary {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            border: 1.5px solid var(--brand-primary);
        }

        .btn--primary:hover,
        .btn--primary:focus-visible {
            background: var(--brand-primary-dark);
            border-color: var(--brand-primary-dark);
            color: var(--text-on-dark);
            transform: translateY(-2px);
        }

        .btn--primary:active {
            transform: translateY(0);
        }

        .btn--outline {
            background: transparent;
            color: var(--brand-primary);
            border: 1.5px solid var(--brand-accent);
        }

        .btn--outline:hover,
        .btn--outline:focus-visible {
            background: var(--brand-accent-bg);
            border-color: var(--brand-accent);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
        }

        .btn--outline:active {
            transform: translateY(0);
        }

        .btn--accent {
            background: var(--brand-accent);
            color: var(--brand-primary-dark);
            border: 1.5px solid var(--brand-accent);
            box-shadow: var(--shadow-accent-glow);
        }

        .btn--accent:hover,
        .btn--accent:focus-visible {
            background: var(--brand-accent-light);
            border-color: var(--brand-accent-light);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
        }

        .btn--accent:active {
            transform: translateY(0);
        }

        .btn--sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn--lg {
            padding: 16px 32px;
            font-size: 16px;
        }

        .btn--full {
            width: 100%;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section--alt {
            background: var(--bg-light-green);
        }

        .section--white {
            background: var(--bg-white);
        }

        .section--dark {
            background: var(--brand-primary);
            color: var(--text-on-dark);
        }

        .section__header {
            margin-bottom: 40px;
        }

        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-accent);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .section__title {
            font-size: 28px;
            font-weight: 680;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section--dark .section__title {
            color: var(--text-on-dark);
        }

        .section__desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
        }

        .section--dark .section__desc {
            color: rgba(247, 244, 236, 0.75);
        }

        /* ========== 标签/徽章 ========== */
        .badge-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-primary);
            background: var(--brand-accent-bg);
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
            border: 1px solid rgba(201, 162, 39, 0.30);
        }

        .badge-tag--light {
            color: var(--brand-accent-light);
            background: rgba(201, 162, 39, 0.15);
            border-color: rgba(201, 162, 39, 0.30);
        }

        /* ========== 头条大卡片 ========== */
        .headline-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            transition: var(--transition-base);
        }

        .headline-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .headline-card__image {
            flex: 1 1 420px;
            max-width: 460px;
            min-height: 300px;
            overflow: hidden;
            position: relative;
        }

        .headline-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .headline-card:hover .headline-card__image img {
            transform: scale(1.03);
        }

        .headline-card__body {
            flex: 1 1 360px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .headline-card__body .badge-tag {
            align-self: flex-start;
            margin-bottom: 14px;
        }

        .headline-card__title {
            font-size: 24px;
            font-weight: 680;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .headline-card__summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .headline-card__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .headline-card__meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .headline-card__meta i {
            color: var(--brand-accent);
        }

        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
            transition: var(--transition-base);
        }

        .link-arrow i {
            font-size: 12px;
            transition: transform 0.25s ease;
        }

        .link-arrow:hover {
            color: var(--brand-accent);
        }

        .link-arrow:hover i {
            transform: translateX(4px);
        }

        /* ========== 三列小卡片 ========== */
        .triple-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .mini-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .mini-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .mini-card__icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: var(--bg-light-green);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .mini-card__title {
            font-size: 18px;
            font-weight: 620;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .mini-card__desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

        /* ========== 流程步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-item {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
        }

        .step-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .step-item__num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: var(--brand-accent-light);
            font-size: 16px;
            font-weight: 700;
            font-family: var(--font-numeric);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }

        .step-item__title {
            font-size: 16px;
            font-weight: 620;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-item__desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== 适用场景 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .scene-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 26px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: var(--transition-base);
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .scene-card__icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .scene-card__title {
            font-size: 16px;
            font-weight: 620;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .scene-card__desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== 数据指标 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item__num {
            font-size: 42px;
            font-weight: 700;
            font-family: var(--font-numeric);
            color: var(--brand-accent-light);
            margin-bottom: 6px;
            letter-spacing: -1px;
        }

        .stat-item__label {
            font-size: 14px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.72);
        }

        /* ========== 图文区块 ========== */
        .split-grid {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .split-grid__text {
            flex: 1 1 480px;
        }

        .split-grid__text h3 {
            font-size: 22px;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .split-grid__text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .split-grid__text ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .split-grid__text ul li {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 20px;
            position: relative;
            margin-bottom: 8px;
        }

        .split-grid__text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.6em;
            width: 8px;
            height: 8px;
            background: var(--brand-accent);
            border-radius: 2px;
        }

        .split-grid__image {
            flex: 1 1 380px;
            max-width: 440px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }

        .split-grid__image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .split-grid__image:hover img {
            transform: scale(1.02);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .faq-item__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: var(--transition-base);
            gap: 16px;
            text-align: left;
            width: 100%;
        }

        .faq-item__header:hover {
            color: var(--brand-primary);
        }

        .faq-item__icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--bg-light-green);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-item__icon {
            transform: rotate(45deg);
            background: var(--brand-accent-bg);
            color: var(--brand-accent);
        }

        .faq-item__body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-item__body {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* ========== CTA 区块 ========== */
        .cta-banner {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-banner__text h3 {
            font-size: 20px;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .cta-banner__text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .cta-banner__buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--brand-primary);
            color: rgba(247, 244, 236, 0.80);
            padding: 50px 0 28px;
            margin-top: 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-bottom: 36px;
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 650;
            color: var(--text-on-dark);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.70);
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--brand-accent-light);
            text-decoration: underline;
            text-decoration-color: var(--brand-accent-light);
            text-underline-offset: 3px;
        }

        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            padding: 20px 0;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            margin-bottom: 24px;
        }

        .footer-middle__brand {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
        }

        .footer-subscribe {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-subscribe input {
            background: transparent;
            border: 1px solid rgba(247, 244, 236, 0.35);
            border-radius: 6px;
            padding: 10px 16px;
            color: var(--text-on-dark);
            font-size: 14px;
            min-width: 220px;
            transition: var(--transition-base);
        }

        .footer-subscribe input::placeholder {
            color: rgba(247, 244, 236, 0.50);
        }

        .footer-subscribe input:focus {
            border-color: var(--brand-accent);
        }

        .footer-bottom {
            font-size: 13px;
            color: rgba(247, 244, 236, 0.60);
            line-height: 1.7;
        }

        .footer-bottom a {
            color: rgba(247, 244, 236, 0.65);
            transition: var(--transition-base);
        }

        .footer-bottom a:hover {
            color: var(--brand-accent-light);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(247, 244, 236, 0.35);
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: var(--left-nav-width);
            right: 0;
            height: var(--fixed-bar-height);
            background: rgba(15, 61, 46, 0.95);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            z-index: 80;
            transform: translateY(100%);
            transition: transform 0.35s ease;
            box-shadow: 0 -2px 12px rgba(0,0,0,0.15);
        }

        .fixed-cta.visible {
            transform: translateY(0);
        }

        .fixed-cta__text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-on-dark);
            letter-spacing: 0.3px;
        }

        .fixed-cta__text strong {
            color: var(--brand-accent-light);
        }

        .fixed-cta .btn {
            padding: 10px 20px;
            font-size: 14px;
            white-space: nowrap;
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1024px) {
            :root {
                --left-nav-width: 200px;
                --spacing-section: 60px;
            }

            .hero-guide__text h1 {
                font-size: 34px;
            }

            .headline-card__image {
                max-width: 100%;
                min-height: 250px;
            }

            .triple-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .footer-top {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --left-nav-width: 0;
                --spacing-section: 48px;
                --header-height: 60px;
                --fixed-bar-height: 56px;
                --spacing-card: 18px;
            }

            .left-nav {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .mobile-drawer {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }

            .fixed-cta {
                left: 0;
                height: var(--fixed-bar-height-mobile);
                padding: 0 16px;
            }

            .fixed-cta__text {
                font-size: 13px;
            }

            .hero-guide {
                padding: 40px 0 36px;
            }

            .hero-guide__grid {
                gap: 30px;
            }

            .hero-guide__text h1 {
                font-size: 28px;
            }

            .hero-guide__subtitle {
                font-size: 15px;
            }

            .hero-guide__panel {
                max-width: 100%;
                margin-left: 0;
            }

            .headline-card {
                flex-direction: column;
            }

            .headline-card__image {
                max-width: 100%;
                min-height: 200px;
            }

            .headline-card__body {
                padding: 22px;
            }

            .headline-card__title {
                font-size: 20px;
            }

            .triple-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scene-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .split-grid {
                flex-direction: column;
                gap: 24px;
            }

            .split-grid__image {
                max-width: 100%;
                width: 100%;
            }

            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }

            .cta-banner__buttons {
                width: 100%;
                justify-content: center;
            }

            .cta-banner__buttons .btn {
                flex: 1;
                min-width: 120px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .footer-middle {
                flex-direction: column;
                text-align: center;
            }

            .footer-subscribe {
                width: 100%;
                justify-content: center;
            }

            .footer-subscribe input {
                min-width: 0;
                flex: 1;
                max-width: 280px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-item__num {
                font-size: 32px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 40px;
            }

            .container {
                padding: 0 16px;
            }

            .hero-guide__text h1 {
                font-size: 24px;
            }

            .hero-guide__cta {
                flex-direction: column;
            }

            .hero-guide__cta .btn {
                width: 100%;
            }

            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }

            .section__title {
                font-size: 22px;
            }

            .headline-card__body {
                padding: 18px;
            }

            .headline-card__title {
                font-size: 18px;
            }

            .mini-card {
                padding: 18px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-col h3 {
                font-size: 14px;
                margin-bottom: 8px;
            }

            .footer-middle__brand {
                font-size: 18px;
            }

            .footer-subscribe {
                flex-direction: column;
                gap: 8px;
            }

            .footer-subscribe input {
                width: 100%;
                max-width: 100%;
                min-width: 0;
            }

            .footer-subscribe .btn {
                width: 100%;
            }

            .fixed-cta__text {
                font-size: 12px;
                max-width: 180px;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }

            .fixed-cta .btn {
                padding: 8px 12px;
                font-size: 12px;
            }

            .group-card {
                padding: 20px;
            }

            .group-card__buttons {
                flex-direction: column;
            }

            .group-card__buttons .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #0F3D2E;
            --brand-primary-dark: #0A2B20;
            --brand-accent: #C9A227;
            --brand-accent-light: #D8B54E;
            --brand-accent-bg: #F5E9C8;
            --bg-warm: #F7F4EC;
            --bg-light-green: #EEF2ED;
            --bg-white: #FFFFFF;
            --text-primary: #22241F;
            --text-secondary: #5C5F58;
            --text-on-dark: #F7F4EC;
            --border-soft: rgba(15, 61, 46, 0.10);
            --border-accent: rgba(201, 162, 39, 0.45);
            --radius-card: 10px;
            --radius-sm: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
            --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
            --spacing-section: 80px;
            --spacing-card: 28px;
            --left-nav-width: 240px;
            --left-nav-width-mid: 200px;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
            --header-height: 80px;
            --fixed-bar-height: 64px;
            --fixed-bar-height-mobile: 56px;
            --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-left: var(--left-nav-width);
            transition: padding-left 0.35s ease;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus-visible {
            text-decoration: none;
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            white-space: nowrap;
            border: 0;
        }

        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 左侧竖向导航 ========== */
        .left-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--left-nav-width);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 200;
            transition: width 0.35s ease, transform 0.35s ease;
        }

        .left-nav__logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-shrink: 0;
        }

        .left-nav__logo a {
            display: block;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            line-height: 1;
            text-align: center;
        }

        .left-nav__logo a:hover {
            color: var(--brand-accent-light);
        }

        .left-nav__menu {
            flex: 1;
            overflow-y: auto;
            padding: 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .left-nav__item {
            display: flex;
            align-items: center;
            padding: 11px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.82);
            position: relative;
            transition: var(--transition-base);
            line-height: 1.3;
        }

        .left-nav__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .left-nav__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            padding-left: 22px;
        }

        .left-nav__item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--brand-accent);
            border-radius: 0 3px 3px 0;
        }

        .left-nav__item .nav-icon {
            width: 20px;
            text-align: center;
            margin-right: 10px;
            font-size: 14px;
            color: var(--brand-accent-light);
            flex-shrink: 0;
        }

        .left-nav__footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            flex-shrink: 0;
        }

        .left-nav__footer a {
            color: rgba(247, 244, 236, 0.65);
        }

        .left-nav__footer a:hover {
            color: var(--brand-accent-light);
        }

        /* ========== 移动端顶部导航 ========== */
        .top-bar-mobile {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--brand-primary);
            color: var(--text-on-dark);
            z-index: 150;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            transition: var(--transition-base);
        }

        .top-bar-mobile__logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
            line-height: 1;
        }

        .top-bar-mobile__toggle {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-on-dark);
            font-size: 22px;
            border-radius: 6px;
            transition: var(--transition-base);
        }

        .top-bar-mobile__toggle:hover {
            background: rgba(247, 244, 236, 0.1);
            color: var(--brand-accent-light);
        }

        .mobile-drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(10, 43, 32, 0.7);
            z-index: 180;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }

        .mobile-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: -300px;
            bottom: 0;
            width: 280px;
            background: var(--brand-primary);
            color: var(--text-on-dark);
            z-index: 190;
            transition: left 0.35s cubic-bezier(0.2, 0.6, 0.3, 1);
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            left: 0;
        }

        .mobile-drawer__logo {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            text-align: center;
            padding: 16px 0;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            margin-bottom: 16px;
        }

        .mobile-drawer__menu {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .mobile-drawer__item {
            padding: 12px 16px;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.85);
        }

        .mobile-drawer__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .mobile-drawer__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            border-left: 3px solid var(--brand-accent);
        }

        .mobile-drawer__footer {
            padding-top: 16px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
        }

        .mobile-drawer__footer a {
            color: rgba(247, 244, 236, 0.65);
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            cursor: pointer;
            border: none;
            text-align: center;
        }

        .btn--primary {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            box-shadow: var(--shadow-card);
        }

        .btn--primary:hover {
            background: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: var(--text-on-dark);
        }

        .btn--primary:active {
            transform: translateY(0);
        }

        .btn--outline {
            background: transparent;
            color: var(--brand-primary);
            border: 1.5px solid var(--brand-accent);
        }

        .btn--outline:hover {
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            border-color: var(--brand-accent);
        }

        .btn--accent {
            background: var(--brand-accent);
            color: var(--brand-primary);
            font-weight: 700;
            box-shadow: var(--shadow-accent-glow);
        }

        .btn--accent:hover {
            background: var(--brand-accent-light);
            transform: translateY(-2px);
            color: var(--brand-primary);
        }

        .btn--sm {
            padding: 10px 18px;
            font-size: 13px;
            border-radius: 6px;
        }

        .btn--lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: var(--radius-card);
        }

        .btn--full {
            width: 100%;
        }

        .btn .btn-arrow {
            transition: transform 0.25s ease;
        }

        .btn:hover .btn-arrow {
            transform: translateX(4px);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 18px 0 6px;
            letter-spacing: 0.3px;
        }

        .breadcrumb a {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .breadcrumb a:hover {
            color: var(--brand-accent);
        }

        .breadcrumb .sep {
            color: var(--brand-accent);
            font-weight: 400;
        }

        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 400;
        }

        /* ========== Hero ========== */
        .page-hero {
            background: linear-gradient(180deg, var(--bg-warm) 0%, var(--bg-light-green) 100%);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--border-soft);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 162, 39, 0.08);
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero__grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .page-hero__content h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin: 0 0 16px;
        }

        .page-hero__content h1 .highlight {
            color: var(--brand-accent);
            position: relative;
        }

        .page-hero__subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0 0 24px;
            max-width: 520px;
        }

        .page-hero__cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .page-hero__image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 3px solid var(--bg-white);
        }

        .page-hero__image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .page-hero__image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 61, 46, 0.35) 100%);
            pointer-events: none;
        }

        .page-hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .page-hero__badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-accent);
        }

        /* ========== 数据速览条 ========== */
        .data-strip {
            background: var(--brand-primary);
            padding: 28px 0;
            border-bottom: 3px solid var(--brand-accent);
        }

        .data-strip__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-strip__item {
            text-align: center;
            color: var(--text-on-dark);
        }

        .data-strip__number {
            font-family: var(--font-numeric);
            font-size: 36px;
            font-weight: 700;
            color: var(--brand-accent-light);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .data-strip__label {
            font-size: 13px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.7);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section--white {
            background: var(--bg-white);
        }

        .section--light {
            background: var(--bg-light-green);
        }

        .section--warm {
            background: var(--bg-warm);
        }

        .section__header {
            margin-bottom: 40px;
        }

        .section__header h2 {
            font-size: 28px;
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: -0.3px;
        }

        .section__header p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
            max-width: 600px;
        }

        .section__header--center {
            text-align: center;
        }

        .section__header--center p {
            margin-left: auto;
            margin-right: auto;
        }

        .section__tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-accent);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        /* ========== 卡片网格 ========== */
        .card-grid-2col {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .info-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .info-card__img {
            position: relative;
            height: 180px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .info-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .info-card:hover .info-card__img img {
            transform: scale(1.06);
        }

        .info-card__img-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--brand-primary);
            color: var(--text-on-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
            z-index: 2;
        }

        .info-card__body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .info-card__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .info-card__meta .date {
            font-family: var(--font-numeric);
            font-weight: 500;
        }

        .info-card__meta .divider {
            width: 1px;
            height: 12px;
            background: var(--border-soft);
        }

        .info-card__title {
            font-size: 18px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.2px;
        }

        .info-card__desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0 0 18px;
            flex: 1;
        }

        .info-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
            transition: var(--transition-base);
        }

        .info-card__link .arrow {
            transition: transform 0.25s ease;
            color: var(--brand-accent);
        }

        .info-card__link:hover {
            color: var(--brand-accent);
        }

        .info-card__link:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== 头条卡片 ========== */
        .featured-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            margin-bottom: 24px;
            transition: var(--transition-base);
        }

        .featured-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .featured-card__img {
            min-height: 280px;
            overflow: hidden;
            position: relative;
        }

        .featured-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-card:hover .featured-card__img img {
            transform: scale(1.04);
        }

        .featured-card__img .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--brand-accent);
            color: var(--brand-primary);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            z-index: 2;
        }

        .featured-card__body {
            padding: 30px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-card__meta {
            display: flex;
            gap: 10px;
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .featured-card__meta .tag {
            background: var(--bg-light-green);
            color: var(--brand-primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 11px;
        }

        .featured-card__title {
            font-size: 22px;
            font-weight: 650;
            line-height: 1.35;
            margin: 0 0 10px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .featured-card__desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin: 0 0 18px;
        }

        /* ========== 次头条小卡片 ========== */
        .sub-grid-3col {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .sub-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .sub-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .sub-card__img {
            height: 140px;
            overflow: hidden;
        }

        .sub-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .sub-card:hover .sub-card__img img {
            transform: scale(1.05);
        }

        .sub-card__body {
            padding: 16px 18px 18px;
        }

        .sub-card__tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-accent);
            letter-spacing: 0.3px;
            margin-bottom: 6px;
        }

        .sub-card__title {
            font-size: 15px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

        .sub-card__desc {
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 卖点卡片 ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            text-align: left;
        }

        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .feature-card__icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--bg-light-green);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 22px;
            color: var(--brand-primary);
            border: 1.5px solid rgba(15, 61, 46, 0.15);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 流程 ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .process-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            position: relative;
        }

        .process-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .process-card__step {
            font-family: var(--font-numeric);
            font-size: 40px;
            font-weight: 700;
            color: var(--brand-accent);
            line-height: 1;
            margin-bottom: 14px;
            letter-spacing: -1px;
        }

        .process-card h3 {
            font-size: 17px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .process-card p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 深度内容 ========== */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .deep-content__img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 3px solid var(--bg-white);
        }

        .deep-content__img img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .deep-content__text h2 {
            font-size: 26px;
            font-weight: 650;
            line-height: 1.35;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: -0.3px;
        }

        .deep-content__text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin: 0 0 16px;
        }

        .deep-content__list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .deep-content__list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .deep-content__list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            background: var(--brand-accent);
            border-radius: 2px;
        }

        /* ========== FAQ ========== */
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .faq-item__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            transition: var(--transition-base);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-item__header:hover {
            background: var(--bg-light-green);
        }

        .faq-item__question {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-primary);
            margin: 0;
            flex: 1;
        }

        .faq-item__icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--brand-primary);
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .faq-item.open .faq-item__icon {
            background: var(--brand-accent-bg);
            color: var(--brand-accent);
            transform: rotate(45deg);
        }

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        .faq-item.open .faq-item__answer {
            max-height: 400px;
        }

        .faq-item__answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        /* ========== CTA横条 ========== */
        .cta-strip {
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-hover);
            position: relative;
            overflow: hidden;
        }

        .cta-strip::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(201, 162, 39, 0.15);
            pointer-events: none;
        }

        .cta-strip__text {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 240px;
        }

        .cta-strip__text h2 {
            font-size: 22px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--text-on-dark);
            margin: 0 0 6px;
        }

        .cta-strip__text p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(247, 244, 236, 0.75);
            margin: 0;
        }

        .cta-strip__action {
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        /* ========== 分页器 ========== */
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 28px 0 8px;
            flex-wrap: wrap;
        }

        .pagination-bar__btn {
            width: 40px;
            height: 40px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .pagination-bar__btn:hover {
            background: var(--bg-light-green);
            color: var(--brand-primary);
            border-color: var(--border-accent);
        }

        .pagination-bar__btn.active {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            border-color: var(--brand-primary);
        }

        .pagination-bar__btn--arrow {
            font-size: 16px;
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: var(--left-nav-width);
            right: 0;
            height: var(--fixed-bar-height);
            background: rgba(15, 61, 46, 0.95);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transform: translateY(100%);
            transition: transform 0.4s ease, opacity 0.4s ease, left 0.35s ease;
            border-top: 1px solid rgba(201, 162, 39, 0.3);
        }

        .fixed-cta.show {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

        .fixed-cta__text {
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.9);
            letter-spacing: 0.3px;
        }

        .fixed-cta__text strong {
            color: var(--brand-accent-light);
            font-weight: 700;
        }

        .fixed-cta__btn {
            background: var(--brand-accent);
            color: var(--brand-primary);
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 6px;
            font-size: 14px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .fixed-cta__btn:hover {
            background: var(--brand-accent-light);
            transform: translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            padding: 56px 0 32px;
            margin-top: 40px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 36px;
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 650;
            color: var(--brand-accent-light);
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.7);
            transition: var(--transition-base);
            line-height: 1.6;
        }

        .footer-col ul li a:hover {
            color: var(--brand-accent-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 24px 0;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .footer-middle__brand {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
        }

        .footer-subscribe {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-subscribe input {
            background: transparent;
            border: 1px solid rgba(247, 244, 236, 0.3);
            border-radius: 6px;
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-on-dark);
            min-width: 240px;
            transition: var(--transition-base);
        }

        .footer-subscribe input::placeholder {
            color: rgba(247, 244, 236, 0.45);
        }

        .footer-subscribe input:focus {
            border-color: var(--brand-accent);
            outline: none;
        }

        .footer-subscribe .btn--accent {
            background: var(--brand-accent);
            color: var(--brand-primary);
            font-weight: 700;
            padding: 10px 20px;
            border-radius: 6px;
            font-size: 14px;
        }

        .footer-bottom {
            font-size: 13px;
            color: rgba(247, 244, 236, 0.55);
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(247, 244, 236, 0.65);
        }

        .footer-bottom a:hover {
            color: var(--brand-accent-light);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(247, 244, 236, 0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --left-nav-width: 200px;
                --spacing-section: 60px;
                --spacing-card: 22px;
            }

            body {
                padding-left: var(--left-nav-width);
            }

            .fixed-cta {
                left: var(--left-nav-width);
            }

            .page-hero__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .page-hero__image img {
                height: 220px;
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .deep-content {
                grid-template-columns: 1fr;
            }

            .footer-top {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --left-nav-width: 0px;
                --spacing-section: 48px;
                --header-height: 60px;
                --fixed-bar-height: 56px;
                --spacing-card: 18px;
            }

            body {
                padding-left: 0;
                padding-top: 60px;
            }

            .left-nav {
                display: none;
            }

            .top-bar-mobile {
                display: flex;
            }

            .mobile-drawer-overlay {
                display: block;
            }

            .mobile-drawer {
                display: flex;
            }

            .fixed-cta {
                left: 0;
                height: var(--fixed-bar-height-mobile);
                padding: 0 16px;
            }

            .fixed-cta__text {
                font-size: 13px;
            }

            .fixed-cta__btn {
                padding: 8px 14px;
                font-size: 13px;
            }

            .container {
                padding: 0 16px;
            }

            .page-hero {
                padding: 32px 0 28px;
            }

            .page-hero__content h1 {
                font-size: 28px;
            }

            .page-hero__subtitle {
                font-size: 15px;
            }

            .page-hero__cta {
                flex-direction: column;
                gap: 10px;
            }

            .page-hero__cta .btn {
                width: 100%;
            }

            .data-strip__grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .data-strip__number {
                font-size: 28px;
            }

            .section__header h2 {
                font-size: 23px;
            }

            .card-grid-2col {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .featured-card {
                grid-template-columns: 1fr;
            }

            .featured-card__img {
                min-height: 180px;
            }

            .featured-card__body {
                padding: 20px;
            }

            .sub-grid-3col {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .process-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .deep-content__img img {
                height: 240px;
            }

            .deep-content__text h2 {
                font-size: 22px;
            }

            .faq-item__header {
                padding: 14px 16px;
            }

            .faq-item__question {
                font-size: 15px;
            }

            .faq-item__answer-inner {
                padding: 0 16px 16px;
                font-size: 14px;
            }

            .cta-strip {
                padding: 24px 20px;
                flex-direction: column;
                text-align: center;
            }

            .cta-strip__text h2 {
                font-size: 18px;
            }

            .cta-strip__action {
                width: 100%;
            }

            .cta-strip__action .btn {
                width: 100%;
            }

            .site-footer {
                padding: 36px 0 24px;
                margin-top: 24px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-middle {
                flex-direction: column;
                text-align: center;
            }

            .footer-subscribe {
                flex-direction: column;
                width: 100%;
            }

            .footer-subscribe input {
                min-width: auto;
                width: 100%;
            }

            .breadcrumb {
                font-size: 12px;
                padding: 12px 0 4px;
            }

            .pagination-bar {
                gap: 6px;
            }

            .pagination-bar__btn {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 36px;
                --spacing-card: 16px;
            }

            .container {
                padding: 0 12px;
            }

            .page-hero__content h1 {
                font-size: 24px;
            }

            .section__header h2 {
                font-size: 20px;
            }

            .info-card__body {
                padding: 16px 18px 18px;
            }

            .info-card__title {
                font-size: 16px;
            }

            .featured-card__body {
                padding: 16px;
            }

            .featured-card__title {
                font-size: 18px;
            }

            .data-strip__number {
                font-size: 24px;
            }

            .cta-strip {
                padding: 20px 16px;
            }

            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-primary: #0F3D2E;
            --brand-primary-dark: #0A2B20;
            --brand-accent: #C9A227;
            --brand-accent-light: #D8B54E;
            --brand-accent-bg: #F5E9C8;
            --bg-warm: #F7F4EC;
            --bg-light-green: #EEF2ED;
            --bg-white: #FFFFFF;
            --text-primary: #22241F;
            --text-secondary: #5C5F58;
            --text-on-dark: #F7F4EC;
            --border-soft: rgba(15, 61, 46, 0.10);
            --border-accent: rgba(201, 162, 39, 0.45);
            --radius-card: 10px;
            --radius-sm: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
            --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
            --spacing-section: 80px;
            --spacing-card: 28px;
            --left-nav-width: 240px;
            --left-nav-width-mid: 200px;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
            --header-height: 80px;
            --fixed-bar-height: 64px;
            --fixed-bar-height-mobile: 56px;
            --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-left: var(--left-nav-width);
            transition: padding-left 0.35s ease;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus-visible {
            text-decoration: none;
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 左侧竖向导航 ========== */
        .left-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--left-nav-width);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: width 0.35s ease, transform 0.35s ease;
        }

        .left-nav__logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-shrink: 0;
        }

        .left-nav__logo a {
            display: block;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            line-height: 1;
            text-align: center;
        }

        .left-nav__logo a:hover {
            color: var(--brand-accent-light);
        }

        .left-nav__menu {
            flex: 1;
            overflow-y: auto;
            padding: 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .left-nav__item {
            display: flex;
            align-items: center;
            padding: 11px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.82);
            position: relative;
            transition: var(--transition-base);
            line-height: 1.3;
        }

        .left-nav__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .left-nav__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            padding-left: 22px;
        }

        .left-nav__item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--brand-accent);
            border-radius: 0 3px 3px 0;
        }

        .left-nav__footer {
            padding: 14px 16px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            display: flex;
            flex-direction: column;
            gap: 6px;
            font-size: 12px;
            flex-shrink: 0;
        }

        .left-nav__footer a {
            color: rgba(247, 244, 236, 0.62);
            transition: var(--transition-base);
        }

        .left-nav__footer a:hover {
            color: var(--brand-accent-light);
        }

        /* ========== 移动端顶部导航 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            z-index: 110;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }

        .mobile-header__logo a {
            font-size: 19px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
        }

        .mobile-header__toggle {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(247, 244, 236, 0.10);
            color: var(--text-on-dark);
            font-size: 20px;
            line-height: 1;
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(10, 43, 32, 0.55);
            z-index: 105;
            opacity: 0;
            transition: opacity 0.35s ease;
        }

        .mobile-overlay.open {
            opacity: 1;
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            text-align: center;
            white-space: nowrap;
        }

        .btn--primary {
            background: var(--brand-primary);
            color: var(--bg-warm);
        }

        .btn--primary:hover {
            background: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: #fff;
        }

        .btn--primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-card);
        }

        .btn--outline {
            background: transparent;
            color: var(--brand-primary);
            border: 1.5px solid var(--brand-accent);
        }

        .btn--outline:hover {
            background: var(--brand-accent-bg);
            border-color: var(--brand-accent);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
        }

        .btn--accent {
            background: var(--brand-accent);
            color: var(--brand-primary);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-accent-glow);
        }

        .btn--accent:hover {
            background: var(--brand-accent-light);
            color: var(--brand-primary-dark);
            box-shadow: 0 6px 20px rgba(201, 162, 39, 0.45);
            transform: translateY(-2px);
        }

        .btn--sm {
            padding: 10px 18px;
            font-size: 14px;
            border-radius: 6px;
        }

        .btn--block {
            width: 100%;
        }

        /* ========== 板块间距 ========== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section--light {
            background: var(--bg-white);
        }

        .section--green {
            background: var(--bg-light-green);
        }

        .section--dark {
            background: var(--brand-primary);
            color: var(--text-on-dark);
        }

        .section__header {
            margin-bottom: 40px;
        }

        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--brand-accent);
            background: var(--brand-accent-bg);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section__title {
            font-size: 28px;
            font-weight: 650;
            line-height: 1.3;
            margin: 0 0 10px;
            color: var(--text-primary);
        }

        .section--dark .section__title {
            color: var(--text-on-dark);
        }

        .section__desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0;
            max-width: 720px;
        }

        .section--dark .section__desc {
            color: rgba(247, 244, 236, 0.75);
        }

        /* ========== 分类页 Hero ========== */
        .category-hero {
            padding: 72px 0 56px;
            background: linear-gradient(180deg, var(--bg-warm) 0%, var(--bg-light-green) 100%);
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 162, 39, 0.12) 0%, rgba(201, 162, 39, 0) 70%);
            pointer-events: none;
        }

        .category-hero__inner {
            display: flex;
            align-items: center;
            gap: 40px;
            position: relative;
            z-index: 1;
        }

        .category-hero__text {
            flex: 1;
            min-width: 0;
        }

        .category-hero__breadcrumb {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .category-hero__breadcrumb a {
            color: var(--text-secondary);
        }

        .category-hero__breadcrumb a:hover {
            color: var(--brand-accent);
        }

        .category-hero__breadcrumb .sep {
            color: var(--brand-accent);
        }

        .category-hero__title {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin: 0 0 16px;
            color: var(--text-primary);
        }

        .category-hero__subtitle {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin: 0 0 28px;
            max-width: 560px;
        }

        .category-hero__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .category-hero__image {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-hover);
        }

        .category-hero__image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        /* ========== 优势卡片 ========== */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .benefit-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: var(--spacing-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .benefit-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border-accent);
        }

        .benefit-card__icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--bg-light-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-primary);
            margin-bottom: 16px;
            border: 1.5px solid var(--border-soft);
        }

        .benefit-card__title {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.4;
            margin: 0 0 10px;
            color: var(--text-primary);
        }

        .benefit-card__desc {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 时间线列表 ========== */
        .timeline {
            position: relative;
            max-width: 820px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 24px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-accent);
        }

        .timeline-item {
            position: relative;
            padding-left: 72px;
            margin-bottom: 36px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item__dot {
            position: absolute;
            left: 14px;
            top: 6px;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--brand-accent);
            border: 4px solid var(--bg-warm);
            box-shadow: 0 0 0 2px var(--brand-accent);
            z-index: 1;
        }

        .timeline-item__content {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .timeline-item__content:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .timeline-item__step {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-accent);
            background: var(--brand-accent-bg);
            padding: 2px 10px;
            border-radius: 16px;
            margin-bottom: 10px;
        }

        .timeline-item__title {
            font-size: 19px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .timeline-item__desc {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 场景卡片 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border-accent);
        }

        .scene-card__img {
            height: 170px;
            overflow: hidden;
        }

        .scene-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scene-card:hover .scene-card__img img {
            transform: scale(1.05);
        }

        .scene-card__body {
            padding: 20px;
        }

        .scene-card__tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-primary);
            background: var(--bg-light-green);
            padding: 3px 10px;
            border-radius: 14px;
            margin-bottom: 10px;
        }

        .scene-card__title {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .scene-card__desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 数据指标 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 20px 16px;
        }

        .stat-item__number {
            font-size: 44px;
            font-weight: 700;
            color: var(--brand-accent-light);
            line-height: 1.2;
            font-family: var(--font-numeric);
            letter-spacing: -1px;
        }

        .stat-item__label {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.72);
            margin-top: 6px;
        }

        /* ========== 服务保障 ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: var(--transition-base);
        }

        .guarantee-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .guarantee-item__icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--brand-accent-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 16px;
        }

        .guarantee-item__title {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text-primary);
        }

        .guarantee-item__desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== FAQ 手风琴 ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-card {
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            overflow: hidden;
        }

        .faq-card.open {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .faq-card__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
            transition: var(--transition-base);
        }

        .faq-card__header:hover {
            background: var(--bg-light-green);
        }

        .faq-card__question {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.5;
        }

        .faq-card__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--brand-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-accent);
            font-size: 16px;
            font-weight: 700;
            line-height: 1;
            transition: var(--transition-base);
        }

        .faq-card.open .faq-card__icon {
            background: var(--brand-accent);
            color: var(--brand-primary);
            transform: rotate(45deg);
        }

        .faq-card__body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        .faq-card__body-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ========== 底部 CTA 横条 ========== */
        .bottom-cta {
            background: var(--bg-light-green);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
            padding: 48px 0;
        }

        .bottom-cta__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .bottom-cta__text h2 {
            font-size: 24px;
            font-weight: 650;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .bottom-cta__text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            padding-top: 56px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-accent-light);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.72);
            transition: var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--brand-accent-light);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 28px 0;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-wrap: wrap;
        }

        .footer-middle__brand {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
        }

        .footer-subscribe {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-subscribe input {
            background: transparent;
            border: 1.5px solid rgba(247, 244, 236, 0.3);
            border-radius: 6px;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text-on-dark);
            min-width: 240px;
        }

        .footer-subscribe input::placeholder {
            color: rgba(247, 244, 236, 0.45);
        }

        .footer-bottom {
            padding: 24px 0 32px;
            font-size: 13px;
            color: rgba(247, 244, 236, 0.6);
        }

        .footer-bottom a {
            color: rgba(247, 244, 236, 0.6);
            transition: var(--transition-base);
        }

        .footer-bottom a:hover {
            color: var(--brand-accent-light);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(247, 244, 236, 0.3);
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: var(--left-nav-width);
            right: 0;
            height: var(--fixed-bar-height);
            background: rgba(15, 61, 46, 0.95);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            z-index: 99;
            transition: var(--transition-base);
            border-top: 1px solid rgba(201, 162, 39, 0.3);
        }

        .fixed-cta__text {
            font-size: 15px;
            color: var(--text-on-dark);
            font-weight: 500;
        }

        .fixed-cta__text strong {
            color: var(--brand-accent-light);
        }

        .fixed-cta .btn {
            flex-shrink: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --left-nav-width: var(--left-nav-width-mid);
                --spacing-section: 60px;
                --spacing-card: 22px;
            }

            body {
                padding-left: var(--left-nav-width);
            }

            .fixed-cta {
                left: var(--left-nav-width);
            }

            .category-hero__image {
                flex: 0 0 300px;
            }

            .category-hero__image img {
                height: 220px;
            }

            .category-hero__title {
                font-size: 32px;
            }

            .benefit-grid,
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --left-nav-width: 0;
                --spacing-section: 48px;
                --header-height: 60px;
                --fixed-bar-height: 56px;
                --spacing-card: 18px;
            }

            body {
                padding-left: 0;
                padding-top: var(--header-height);
            }

            .left-nav {
                transform: translateX(-100%);
                width: 240px;
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
            }

            .left-nav.open {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }

            .mobile-overlay {
                display: block;
                pointer-events: none;
            }

            .mobile-overlay.open {
                pointer-events: auto;
            }

            .fixed-cta {
                left: 0;
                height: var(--fixed-bar-height);
                padding: 0 16px;
            }

            .fixed-cta__text {
                font-size: 13px;
            }

            .category-hero {
                padding: 40px 0 40px;
            }

            .category-hero__inner {
                flex-direction: column;
                gap: 24px;
            }

            .category-hero__title {
                font-size: 28px;
            }

            .category-hero__subtitle {
                font-size: 15px;
            }

            .category-hero__image {
                flex: 0 0 auto;
                width: 100%;
            }

            .category-hero__image img {
                height: 190px;
            }

            .category-hero__actions {
                flex-direction: column;
            }

            .category-hero__actions .btn {
                width: 100%;
            }

            .benefit-grid,
            .scene-grid,
            .guarantee-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .timeline::before {
                left: 14px;
            }

            .timeline-item {
                padding-left: 48px;
            }

            .timeline-item__dot {
                left: 4px;
                width: 20px;
                height: 20px;
                border-width: 3px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .footer-middle {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-subscribe input {
                min-width: 100%;
                flex: 1;
            }

            .bottom-cta__inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .bottom-cta .btn {
                width: 100%;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .category-hero__title {
                font-size: 24px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-bottom {
                font-size: 12px;
                line-height: 1.8;
            }

            .footer-bottom .sep {
                margin: 0 4px;
            }

            .stat-item__number {
                font-size: 34px;
            }

            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }

            .timeline-item__content {
                padding: 16px;
            }

            .fixed-cta__text {
                font-size: 12px;
                line-height: 1.4;
            }

            .fixed-cta .btn {
                padding: 8px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-primary: #0F3D2E;
            --brand-primary-dark: #0A2B20;
            --brand-accent: #C9A227;
            --brand-accent-light: #D8B54E;
            --brand-accent-bg: #F5E9C8;
            --bg-warm: #F7F4EC;
            --bg-light-green: #EEF2ED;
            --bg-white: #FFFFFF;
            --text-primary: #22241F;
            --text-secondary: #5C5F58;
            --text-on-dark: #F7F4EC;
            --border-soft: rgba(15, 61, 46, 0.10);
            --border-accent: rgba(201, 162, 39, 0.45);
            --radius-card: 10px;
            --radius-sm: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
            --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
            --spacing-section: 80px;
            --spacing-card: 28px;
            --left-nav-width: 240px;
            --left-nav-width-mid: 200px;
            --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
            --header-height: 80px;
            --fixed-bar-height: 64px;
            --fixed-bar-height-mobile: 56px;
            --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.85;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus-visible {
            text-decoration: none;
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 左侧竖向导航 ========== */
        .left-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--left-nav-width);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: width 0.35s ease, transform 0.35s ease;
        }

        .left-nav__logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            flex-shrink: 0;
        }

        .left-nav__logo a {
            display: block;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-on-dark);
            line-height: 1;
            text-align: center;
        }

        .left-nav__logo a:hover {
            color: var(--brand-accent-light);
        }

        .left-nav__menu {
            flex: 1;
            overflow-y: auto;
            padding: 20px 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .left-nav__item {
            display: flex;
            align-items: center;
            padding: 11px 14px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(247, 244, 236, 0.82);
            position: relative;
            transition: var(--transition-base);
            line-height: 1.3;
        }

        .left-nav__item:hover {
            color: var(--brand-accent-light);
            background: rgba(247, 244, 236, 0.06);
        }

        .left-nav__item.active {
            color: var(--text-on-dark);
            background: rgba(27, 94, 74, 0.65);
            padding-left: 22px;
        }

        .left-nav__item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--brand-accent);
            border-radius: 0 3px 3px 0;
        }

        .left-nav__footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            display: flex;
            flex-direction: column;
            gap: 6px;
            font-size: 12px;
            color: rgba(247, 244, 236, 0.5);
        }

        .left-nav__footer a {
            color: rgba(247, 244, 236, 0.55);
            font-size: 12px;
        }

        .left-nav__footer a:hover {
            color: var(--brand-accent-light);
        }

        /* ========== 主内容区 ========== */
        .main-wrapper {
            margin-left: var(--left-nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left 0.35s ease;
        }

        /* ========== 移动端顶部导航 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: var(--brand-primary);
            color: var(--text-on-dark);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-header__logo {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
        }

        .mobile-header__toggle {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .mobile-header__toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-on-dark);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .mobile-header__toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-header__toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .mobile-header__toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            text-align: center;
            transition: var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn--primary {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            border: none;
        }

        .btn--primary:hover {
            background: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(15, 61, 46, 0.25);
            color: var(--text-on-dark);
        }

        .btn--primary:active {
            transform: translateY(0);
        }

        .btn--primary:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
        }

        .btn--outline {
            background: transparent;
            color: var(--brand-primary);
            border: 1.5px solid var(--brand-accent);
        }

        .btn--outline:hover {
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .btn--outline:active {
            transform: translateY(0);
        }

        .btn--accent {
            background: var(--brand-accent);
            color: var(--brand-primary);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-accent-glow);
        }

        .btn--accent:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 162, 39, 0.45);
            color: var(--brand-primary);
        }

        .btn--sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn--full {
            width: 100%;
        }

        /* ========== 分类页 Hero ========== */
        .category-hero {
            background: linear-gradient(180deg, #F7F4EC 0%, #EEF2ED 100%);
            border-bottom: 1px solid var(--border-soft);
            padding: 56px 0 40px;
        }

        .category-hero__inner {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .category-hero__text {
            flex: 1;
        }

        .category-hero__breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .category-hero__breadcrumb a:hover {
            color: var(--brand-primary);
        }

        .category-hero__breadcrumb .sep {
            color: var(--brand-accent);
        }

        .category-hero__breadcrumb .current {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .category-hero__title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin: 0 0 12px;
        }

        .category-hero__subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 560px;
            margin: 0;
        }

        .category-hero__visual {
            flex-shrink: 0;
            width: 300px;
            height: 220px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }

        .category-hero__visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 交错图文列表 ========== */
        .alternating-section {
            padding: var(--spacing-section) 0;
        }

        .alternating-section:nth-child(even) {
            background: var(--bg-light-green);
        }

        .alternating-item {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 56px;
        }

        .alternating-item:last-child {
            margin-bottom: 0;
        }

        .alternating-item__image {
            flex: 0 0 45%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }

        .alternating-item__image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            display: block;
        }

        .alternating-item__content {
            flex: 1;
        }

        .alternating-item__badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .alternating-item__title {
            font-size: 24px;
            font-weight: 650;
            line-height: 1.35;
            color: var(--text-primary);
            margin: 0 0 12px;
        }

        .alternating-item__desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0 0 16px;
        }

        .alternating-item__list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .alternating-item__list li {
            position: relative;
            padding-left: 20px;
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .alternating-item__list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 8px;
            height: 8px;
            background: var(--brand-accent);
            border-radius: 2px;
        }

        .alternating-item--reverse .alternating-item__image {
            order: 2;
        }

        .alternating-item--reverse .alternating-item__content {
            order: 1;
        }

        /* ========== 功能卡片区 ========== */
        .tools-grid-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-white);
        }

        .section-header {
            text-align: left;
            margin-bottom: 36px;
        }

        .section-header__label {
            display: inline-block;
            padding: 5px 14px;
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }

        .section-header__title {
            font-size: 28px;
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .tool-card {
            background: var(--bg-warm);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: var(--spacing-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .tool-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border-accent);
        }

        .tool-card__icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--bg-light-green);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 22px;
            color: var(--brand-primary);
        }

        .tool-card__title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .tool-card__desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .tool-card__footer {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
        }

        .tool-card__footer .arrow {
            transition: var(--transition-base);
        }

        .tool-card__footer:hover .arrow {
            transform: translateX(4px);
            color: var(--brand-accent);
        }

        /* ========== 数据展示区 ========== */
        .data-showcase-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-light-green);
        }

        .data-table-wrapper {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            margin-bottom: 32px;
        }

        .data-table-header {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-soft);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-table-header__title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .data-table-header__badge {
            font-size: 12px;
            color: var(--brand-primary);
            background: var(--brand-accent-bg);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
        }

        .data-table th {
            padding: 14px 16px;
            text-align: left;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border-soft);
            letter-spacing: 0.3px;
        }

        .data-table td {
            padding: 13px 16px;
            font-size: 14px;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-soft);
            font-family: var(--font-numeric);
        }

        .data-table tr:last-child td {
            border-bottom: none;
        }

        .data-table tr:hover td {
            background: rgba(15, 61, 46, 0.03);
        }

        .data-table .hot {
            color: var(--brand-accent);
            font-weight: 700;
        }

        .data-table .cold {
            color: var(--text-secondary);
        }

        /* ========== 统计指标区 ========== */
        .stats-section {
            padding: var(--spacing-section) 0;
            background: var(--brand-primary);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item__number {
            font-family: var(--font-numeric);
            font-size: 42px;
            font-weight: 700;
            color: var(--brand-accent-light);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item__label {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.7);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-white);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-warm);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .faq-item__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            gap: 12px;
            user-select: none;
        }

        .faq-item__header:hover {
            color: var(--brand-primary);
        }

        .faq-item__icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--brand-accent-bg);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition-base);
        }

        .faq-item.open .faq-item__icon {
            transform: rotate(45deg);
            background: var(--brand-accent);
            color: var(--brand-primary);
        }

        .faq-item__body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-item__body {
            max-height: 300px;
        }

        .faq-item__body-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 窄 CTA 横条 ========== */
        .narrow-cta {
            padding: 32px 0;
            background: var(--bg-light-green);
        }

        .narrow-cta__inner {
            background: var(--brand-primary);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .narrow-cta__text h3 {
            margin: 0 0 4px;
            font-size: 20px;
            font-weight: 600;
            color: var(--text-on-dark);
            line-height: 1.3;
        }

        .narrow-cta__text p {
            margin: 0;
            font-size: 14px;
            color: rgba(247, 244, 236, 0.7);
        }

        /* ========== 分页器 ========== */
        .pagination-area {
            padding: 24px 0 40px;
            display: flex;
            justify-content: center;
            gap: 8px;
        }

        .pagination-area .page-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            background: var(--bg-white);
            border: 1px solid var(--border-soft);
            transition: var(--transition-base);
        }

        .pagination-area .page-btn:hover {
            border-color: var(--brand-accent);
            color: var(--brand-primary);
        }

        .pagination-area .page-btn.active {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            border-color: var(--brand-primary);
        }

        .pagination-area .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--brand-primary);
            color: var(--text-on-dark);
            padding: 56px 0 24px;
            flex-shrink: 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-col h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-on-dark);
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(247, 244, 236, 0.7);
            transition: var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--brand-accent-light);
            text-decoration: underline;
            text-decoration-color: var(--brand-accent-light);
            text-underline-offset: 3px;
        }

        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            padding: 24px 0;
            border-top: 1px solid rgba(247, 244, 236, 0.12);
            border-bottom: 1px solid rgba(247, 244, 236, 0.12);
            margin-bottom: 24px;
        }

        .footer-middle__brand {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-on-dark);
        }

        .footer-subscribe {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-subscribe input {
            background: transparent;
            border: 1px solid rgba(247, 244, 236, 0.35);
            border-radius: 6px;
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-on-dark);
            min-width: 240px;
        }

        .footer-subscribe input::placeholder {
            color: rgba(247, 244, 236, 0.5);
        }

        .footer-subscribe input:focus {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        .footer-bottom {
            text-align: center;
            font-size: 13px;
            color: rgba(247, 244, 236, 0.6);
        }

        .footer-bottom a {
            color: rgba(247, 244, 236, 0.6);
        }

        .footer-bottom a:hover {
            color: var(--brand-accent-light);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(247, 244, 236, 0.3);
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: var(--left-nav-width);
            right: 0;
            height: var(--fixed-bar-height);
            background: rgba(15, 61, 46, 0.95);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            z-index: 90;
            transform: translateY(100%);
            transition: transform 0.4s ease, left 0.35s ease;
            box-shadow: 0 -4px 16px rgba(15, 61, 46, 0.25);
        }

        .fixed-cta-bar.visible {
            transform: translateY(0);
        }

        .fixed-cta-bar__text {
            font-size: 15px;
            color: var(--text-on-dark);
            font-weight: 500;
        }

        .fixed-cta-bar__text strong {
            color: var(--brand-accent-light);
        }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            :root {
                --left-nav-width: 200px;
                --spacing-section: 60px;
            }

            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .alternating-item {
                gap: 32px;
            }

            .alternating-item__image img {
                height: 240px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --left-nav-width: 0;
                --spacing-section: 48px;
                --header-height: 60px;
                --fixed-bar-height: 56px;
                --spacing-card: 18px;
            }

            .left-nav {
                transform: translateX(-100%);
                width: 260px;
            }

            .left-nav.open {
                transform: translateX(0);
                width: 260px;
            }

            .mobile-header {
                display: flex;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }

            .category-hero__inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .category-hero__visual {
                width: 100%;
                height: 200px;
            }

            .category-hero__title {
                font-size: 28px;
            }

            .alternating-item {
                flex-direction: column;
                gap: 20px;
                margin-bottom: 40px;
            }

            .alternating-item--reverse .alternating-item__image {
                order: 0;
            }

            .alternating-item--reverse .alternating-item__content {
                order: 1;
            }

            .alternating-item__image {
                flex: 0 0 auto;
                width: 100%;
            }

            .alternating-item__image img {
                height: 200px;
            }

            .tools-grid {
                grid-template-columns: 1fr;
            }

            .footer-top {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .fixed-cta-bar {
                left: 0;
                height: var(--fixed-bar-height-mobile);
                padding: 0 16px;
            }

            .fixed-cta-bar__text {
                font-size: 13px;
            }

            .fixed-cta-bar .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
        }

        @media screen and (max-width: 520px) {
            .category-hero {
                padding: 40px 0 28px;
            }

            .category-hero__title {
                font-size: 24px;
            }

            .tools-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .stat-item__number {
                font-size: 32px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-middle {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-subscribe input {
                min-width: 100%;
            }

            .narrow-cta__inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }

            .narrow-cta__inner .btn {
                width: 100%;
            }
        }

/* roulang page: category6 */
:root {
      --brand-primary: #0F3D2E;
      --brand-primary-dark: #0A2B20;
      --brand-accent: #C9A227;
      --brand-accent-light: #D8B54E;
      --brand-accent-bg: #F5E9C8;
      --bg-warm: #F7F4EC;
      --bg-light-green: #EEF2ED;
      --bg-white: #FFFFFF;
      --text-primary: #22241F;
      --text-secondary: #5C5F58;
      --text-on-dark: #F7F4EC;
      --border-soft: rgba(15, 61, 46, 0.10);
      --border-accent: rgba(201, 162, 39, 0.45);
      --radius-card: 10px;
      --radius-sm: 8px;
      --radius-lg: 12px;
      --shadow-card: 0 2px 8px rgba(15, 61, 46, 0.06);
      --shadow-hover: 0 8px 24px rgba(15, 61, 46, 0.12);
      --shadow-accent-glow: 0 4px 16px rgba(201, 162, 39, 0.35);
      --spacing-section: 80px;
      --spacing-card: 28px;
      --left-nav-width: 240px;
      --left-nav-width-mid: 200px;
      --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      --font-numeric: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
      --header-height: 80px;
      --fixed-bar-height: 64px;
      --fixed-bar-height-mobile: 56px;
      --transition-base: all 0.25s cubic-bezier(0.2, 0.6, 0.3, 1);
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      font-family: var(--font-body);
      font-size: 16px;
      font-weight: 400;
      line-height: 1.85;
      color: var(--text-primary);
      background-color: var(--bg-warm);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-base);
    }

    a:hover,
    a:focus-visible {
      text-decoration: none;
      outline: none;
    }

    a:focus-visible {
      outline: 2px solid var(--brand-accent);
      outline-offset: 3px;
      border-radius: 4px;
    }

    img {
      max-width: 100%;
      height: auto;
      vertical-align: middle;
    }

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      transition: var(--transition-base);
    }

    button:focus-visible {
      outline: 2px solid var(--brand-accent);
      outline-offset: 3px;
    }

    input {
      font-family: inherit;
      transition: var(--transition-base);
    }

    input:focus {
      outline: 2px solid var(--brand-accent);
      outline-offset: 2px;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      border: 0;
    }

    /* ========== 左侧竖向导航 ========== */
    .left-nav {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: var(--left-nav-width);
      background: var(--brand-primary);
      color: var(--text-on-dark);
      display: flex;
      flex-direction: column;
      z-index: 100;
      transition: transform 0.35s ease, width 0.35s ease;
    }

    .left-nav__logo {
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 20px;
      border-bottom: 1px solid rgba(247, 244, 236, 0.12);
      flex-shrink: 0;
    }

    .left-nav__logo a {
      display: block;
      font-size: 24px;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--text-on-dark);
      line-height: 1;
      text-align: center;
    }

    .left-nav__logo a:hover {
      color: var(--brand-accent-light);
    }

    .left-nav__menu {
      flex: 1;
      overflow-y: auto;
      padding: 20px 12px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .left-nav__item {
      display: flex;
      align-items: center;
      padding: 11px 14px;
      border-radius: 6px;
      font-size: 15px;
      font-weight: 500;
      color: rgba(247, 244, 236, 0.82);
      position: relative;
      transition: var(--transition-base);
      line-height: 1.3;
    }

    .left-nav__item:hover {
      color: var(--brand-accent-light);
      background: rgba(247, 244, 236, 0.06);
    }

    .left-nav__item.active {
      color: var(--text-on-dark);
      background: rgba(27, 94, 74, 0.65);
      padding-left: 22px;
    }

    .left-nav__item.active::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 3px;
      height: 60%;
      background: var(--brand-accent);
      border-radius: 0 3px 3px 0;
    }

    .left-nav__footer {
      padding: 16px 20px 24px;
      border-top: 1px solid rgba(247, 244, 236, 0.12);
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
    }

    .left-nav__footer a {
      color: rgba(247, 244, 236, 0.65);
      line-height: 1.6;
      transition: var(--transition-base);
    }

    .left-nav__footer a:hover {
      color: var(--brand-accent-light);
      text-decoration: underline;
    }

    /* ========== 移动端顶部导航 ========== */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 56px;
      background: var(--brand-primary);
      color: var(--text-on-dark);
      align-items: center;
      padding: 0 16px;
      z-index: 99;
    }

    .mobile-header__logo a {
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--text-on-dark);
    }

    .mobile-header__toggle {
      margin-left: auto;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: rgba(247, 244, 236, 0.08);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      padding: 0;
      border: none;
      cursor: pointer;
    }

    .mobile-header__toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--text-on-dark);
      border-radius: 2px;
      transition: var(--transition-base);
    }

    .nav-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.45);
      z-index: 98;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    body.nav-open .nav-overlay {
      opacity: 1;
      visibility: visible;
    }

    body.nav-open .left-nav {
      transform: translateX(0);
    }

    /* ========== 主内容区域 ========== */
    .main-content {
      margin-left: var(--left-nav-width);
      transition: margin-left 0.35s ease;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    .section {
      padding: var(--spacing-section) 0;
    }

    .section--alt {
      background: var(--bg-light-green);
    }

    .section--white {
      background: var(--bg-white);
    }

    .section-title {
      font-size: 28px;
      font-weight: 650;
      line-height: 1.3;
      color: var(--text-primary);
      margin: 0 0 12px;
      letter-spacing: -0.3px;
    }

    .section-lead {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 700px;
      line-height: 1.8;
      margin-bottom: 28px;
    }

    .text-accent {
      color: var(--brand-accent);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      line-height: 1.2;
      letter-spacing: 0.2px;
      transition: var(--transition-base);
      border: 1.5px solid transparent;
      cursor: pointer;
      white-space: nowrap;
    }

    .btn--primary {
      background: var(--brand-primary);
      color: var(--text-on-dark);
    }

    .btn--primary:hover {
      background: var(--brand-primary-dark);
      transform: translateY(-2px);
      color: var(--text-on-dark);
    }

    .btn--primary:active {
      transform: translateY(0);
    }

    .btn--ghost {
      border-color: var(--brand-accent);
      color: var(--brand-primary);
      background: transparent;
    }

    .btn--ghost:hover {
      background: var(--brand-accent-bg);
      color: var(--brand-primary);
    }

    .btn--accent {
      background: var(--brand-accent);
      color: var(--brand-primary);
      font-weight: 700;
    }

    .btn--accent:hover {
      filter: brightness(1.06);
      transform: translateY(-2px);
      box-shadow: var(--shadow-accent-glow);
      color: var(--brand-primary);
    }

    .btn--sm {
      padding: 10px 16px;
      font-size: 13px;
    }

    .tag {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      line-height: 1.4;
      letter-spacing: 0.3px;
      background: var(--brand-accent-bg);
      color: var(--brand-primary);
      border: 1px solid var(--border-accent);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--brand-accent);
      color: var(--brand-primary);
      font-weight: 700;
      font-size: 14px;
      line-height: 1;
    }

    /* ========== Hero ========== */
    .page-hero {
      background: linear-gradient(180deg, var(--bg-warm) 0%, var(--bg-light-green) 100%);
      padding: 56px 0 40px;
      border-bottom: 1px solid var(--border-soft);
    }

    .page-hero__inner {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .page-hero__title {
      font-size: 40px;
      font-weight: 700;
      line-height: 1.2;
      color: var(--text-primary);
      margin: 0 0 16px;
      letter-spacing: -0.5px;
    }

    .page-hero__subtitle {
      font-size: 17px;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 620px;
      margin-bottom: 24px;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: var(--text-secondary);
      margin-bottom: 24px;
    }

    .breadcrumb a {
      color: var(--text-secondary);
    }

    .breadcrumb a:hover {
      color: var(--brand-primary);
    }

    .breadcrumb .sep {
      color: var(--brand-accent);
    }

    .page-hero__media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-card);
      background: var(--bg-white);
      aspect-ratio: 4 / 3;
      width: 100%;
    }

    .page-hero__media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    /* ========== 两栏布局 ========== */
    .member-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 32px;
      align-items: start;
    }

    .member-layout__main {
      min-width: 0;
    }

    /* ========== 紧凑新闻列表 ========== */
    .news-card-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .news-card {
      display: grid;
      grid-template-columns: 110px minmax(0, 1fr);
      gap: 16px;
      background: var(--bg-white);
      border-radius: var(--radius-card);
      border: 1px solid var(--border-soft);
      padding: 16px;
      box-shadow: var(--shadow-card);
      transition: var(--transition-base);
    }

    .news-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .news-card__thumb {
      width: 110px;
      height: 82px;
      border-radius: 8px;
      overflow: hidden;
      background: var(--bg-light-green);
      flex-shrink: 0;
    }

    .news-card__thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .news-card__body {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .news-card__date {
      font-family: var(--font-numeric);
      font-size: 13px;
      color: var(--brand-accent);
      font-weight: 600;
      letter-spacing: 0.3px;
      margin-bottom: 6px;
    }

    .news-card__title {
      font-size: 17px;
      font-weight: 650;
      color: var(--text-primary);
      line-height: 1.4;
      margin-bottom: 6px;
    }

    .news-card__excerpt {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .news-card__link {
      font-size: 13px;
      font-weight: 600;
      color: var(--brand-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: var(--transition-base);
    }

    .news-card__link .arrow {
      transition: transform 0.25s ease;
    }

    .news-card__link:hover {
      color: var(--brand-accent);
    }

    .news-card__link:hover .arrow {
      transform: translateX(4px);
    }

    /* ========== 粘性信息卡 ========== */
    .sticky-card {
      position: sticky;
      top: 96px;
      background: var(--bg-white);
      border-radius: var(--radius-card);
      border: 1px solid var(--border-soft);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }

    .sticky-card__title {
      font-size: 20px;
      font-weight: 650;
      color: var(--text-primary);
      margin: 0 0 16px;
      line-height: 1.3;
    }

    .sticky-card__list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .sticky-card__item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      line-height: 1.6;
      color: var(--text-secondary);
    }

    .sticky-card__item .icon {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--brand-accent-bg);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      color: var(--brand-primary);
      margin-top: 2px;
    }

    .sticky-card__cta {
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    /* ========== 权益卡片 ========== */
    .benefit-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .benefit-card {
      background: var(--bg-white);
      border-radius: var(--radius-card);
      border: 1px solid var(--border-soft);
      padding: 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition-base);
    }

    .benefit-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .benefit-card__icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--brand-accent-bg);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      color: var(--brand-primary);
      font-size: 20px;
      font-weight: 700;
    }

    .benefit-card__title {
      font-size: 18px;
      font-weight: 650;
      color: var(--text-primary);
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .benefit-card__text {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ========== 流程步骤 ========== */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .process-step {
      background: var(--bg-white);
      border-radius: var(--radius-card);
      border: 1px solid var(--border-soft);
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-card);
    }

    .process-step__num {
      font-family: var(--font-numeric);
      font-size: 36px;
      font-weight: 700;
      color: var(--brand-accent);
      line-height: 1;
      margin-bottom: 12px;
    }

    .process-step__title {
      font-size: 16px;
      font-weight: 650;
      color: var(--text-primary);
      margin-bottom: 6px;
      line-height: 1.4;
    }

    .process-step__text {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ========== 适用人群 ========== */
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .audience-card {
      background: var(--bg-white);
      border-radius: var(--radius-card);
      border: 1px solid var(--border-soft);
      padding: 20px 24px;
      display: flex;
      gap: 16px;
      align-items: flex-start;
      box-shadow: var(--shadow-card);
      transition: var(--transition-base);
    }

    .audience-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .audience-card__icon {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--brand-accent-bg);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: var(--brand-primary);
      font-weight: 600;
    }

    .audience-card__title {
      font-size: 16px;
      font-weight: 650;
      color: var(--text-primary);
      margin-bottom: 4px;
    }

    .audience-card__text {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ========== FAQ ========== */
    .faq-card {
      background: var(--bg-white);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-card);
      padding: 0;
      box-shadow: var(--shadow-card);
      transition: var(--transition-base);
      overflow: hidden;
    }

    .faq-card__question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 20px;
      background: transparent;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      cursor: pointer;
      text-align: left;
      gap: 16px;
    }

    .faq-card__question .icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--bg-light-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
      color: var(--brand-primary);
      transition: var(--transition-base);
    }

    .faq-card[open] .faq-card__question .icon {
      transform: rotate(45deg);
    }

    .faq-card__answer {
      padding: 0 20px 20px;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    .faq-card[open] {
      border-color: var(--border-accent);
      box-shadow: var(--shadow-hover);
    }

    /* ========== 窄 CTA 横条 ========== */
    .cta-narrow {
      background: var(--brand-primary);
      border-radius: var(--radius-card);
      padding: 28px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      color: var(--text-on-dark);
      box-shadow: var(--shadow-card);
    }

    .cta-narrow__text {
      font-size: 18px;
      font-weight: 600;
      line-height: 1.5;
      max-width: 560px;
    }

    .cta-narrow .btn--accent {
      flex-shrink: 0;
    }

    /* ========== 底部固定转化条 ========== */
    .fixed-cta-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      height: var(--fixed-bar-height);
      background: rgba(15, 61, 46, 0.95);
      backdrop-filter: blur(4px);
      -webkit-backdrop-filter: blur(4px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 24px;
      gap: 16px;
      z-index: 95;
      transform: translateY(100%);
      transition: transform 0.4s ease;
      color: var(--text-on-dark);
    }

    .fixed-cta-bar.show {
      transform: translateY(0);
    }

    .fixed-cta-bar__text {
      font-size: 14px;
      font-weight: 500;
      line-height: 1.4;
    }

    .fixed-cta-bar .btn--accent {
      padding: 10px 16px;
      font-size: 13px;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: var(--brand-primary);
      color: rgba(247, 244, 236, 0.75);
      padding-top: 48px;
      margin-top: auto;
    }

    .footer-top {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(247, 244, 236, 0.12);
    }

    .footer-col h3 {
      font-size: 15px;
      font-weight: 650;
      color: var(--text-on-dark);
      margin-bottom: 16px;
      letter-spacing: 0.3px;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      font-size: 14px;
      color: rgba(247, 244, 236, 0.7);
      transition: var(--transition-base);
      line-height: 1.6;
    }

    .footer-col ul li a:hover {
      color: var(--brand-accent-light);
      text-decoration: underline;
    }

    .footer-middle {
      padding: 24px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      border-bottom: 1px solid rgba(247, 244, 236, 0.12);
      flex-wrap: wrap;
    }

    .footer-middle__brand {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-on-dark);
      letter-spacing: 1px;
    }

    .footer-subscribe {
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .footer-subscribe input {
      background: transparent;
      border: 1.5px solid rgba(247, 244, 236, 0.35);
      border-radius: 6px;
      padding: 10px 14px;
      color: var(--text-on-dark);
      width: 240px;
      font-size: 14px;
    }

    .footer-subscribe input::placeholder {
      color: rgba(247, 244, 236, 0.6);
    }

    .footer-subscribe input:focus {
      border-color: var(--brand-accent);
      outline: none;
    }

    .footer-bottom {
      padding: 20px 0 28px;
      font-size: 13px;
      line-height: 1.6;
      color: rgba(247, 244, 236, 0.6);
    }

    .footer-bottom a {
      color: rgba(247, 244, 236, 0.7);
      transition: var(--transition-base);
    }

    .footer-bottom a:hover {
      color: var(--brand-accent-light);
      text-decoration: underline;
    }

    .footer-bottom .sep {
      margin: 0 8px;
      color: rgba(247, 244, 236, 0.4);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      :root {
        --left-nav-width: 200px;
        --spacing-section: 60px;
        --spacing-card: 20px;
      }

      .page-hero__inner {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .page-hero__media {
        aspect-ratio: 16 / 9;
      }

      .member-layout {
        grid-template-columns: 1fr;
      }

      .sticky-card {
        position: static;
        margin-top: 24px;
      }

      .benefit-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
      }

      .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }

      .audience-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --left-nav-width: 280px;
        --spacing-section: 48px;
        --header-height: 56px;
        --fixed-bar-height: 56px;
        --spacing-card: 18px;
      }

      .left-nav {
        width: 280px;
        transform: translateX(-100%);
        box-shadow: 0 0 24px rgba(0, 0, 0, 0.15);
      }

      .left-nav__logo {
        height: 56px;
        font-size: 20px;
      }

      .mobile-header {
        display: flex;
      }

      .main-content {
        margin-left: 0;
        padding-top: 56px;
      }

      .page-hero {
        padding: 36px 0 28px;
      }

      .page-hero__title {
        font-size: 28px;
        letter-spacing: -0.3px;
      }

      .page-hero__subtitle {
        font-size: 15px;
      }

      .section-title {
        font-size: 24px;
      }

      .news-card {
        grid-template-columns: 76px minmax(0, 1fr);
        gap: 12px;
        padding: 12px;
      }

      .news-card__thumb {
        width: 76px;
        height: 60px;
      }

      .news-card__title {
        font-size: 15px;
      }

      .benefit-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .process-steps {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }

      .process-step {
        padding: 16px;
      }

      .audience-card {
        padding: 16px;
      }

      .cta-narrow {
        flex-direction: column;
        align-items: flex-start;
        padding: 22px 20px;
      }

      .cta-narrow .btn {
        width: 100%;
        justify-content: center;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
      }

      .footer-middle {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-subscribe {
        width: 100%;
      }

      .footer-subscribe input {
        flex: 1;
        width: auto;
        min-width: 0;
      }

      .fixed-cta-bar {
        padding: 0 16px;
        height: 56px;
      }

      .fixed-cta-bar__text {
        font-size: 13px;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 16px;
      }

      .process-steps {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .news-card {
        grid-template-columns: 1fr;
      }

      .news-card__thumb {
        width: 100%;
        height: 140px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .footer-subscribe {
        flex-direction: column;
        align-items: stretch;
      }

      .footer-subscribe input {
        width: 100%;
      }
    }