/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #3B7A7A;
            --primary-dark: #2E6262;
            --primary-light: #4A8F8F;
            --secondary: #D4A373;
            --secondary-dark: #C08A5E;
            --accent: #2A4A4A;
            --bg-page: #FCF9F5;
            --bg-card: #FFFFFF;
            --bg-warm: #F5F0EB;
            --bg-dark: #2A4A4A;
            --text-primary: #2D3A3A;
            --text-secondary: #5A6B6B;
            --text-muted: #8A9B9B;
            --text-light: #F0F0F0;
            --border-color: #E5E0DA;
            --radius-nav: 12px;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --shadow-card: 0 4px 12px rgba(42, 74, 74, 0.08);
            --shadow-nav: 0 2px 16px rgba(42, 74, 74, 0.12);
            --shadow-hover: 0 6px 20px rgba(59, 122, 122, 0.25);
            --transition: 0.25s ease;
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --body-line-height: 1.7;
        }

        /* ===== Base Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: var(--body-line-height);
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul,
        ol,
        dl {
            margin: 0 0 1.2rem 0;
            padding: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-stack);
            font-weight: 600;
            line-height: 1.3;
            color: var(--accent);
            margin-top: 0;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 700;
        }
        h2 {
            font-size: 2rem;
            font-weight: 600;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
        }
        p {
            margin: 0 0 1.2rem 0;
            color: var(--text-secondary);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* ===== Top Bar / Navigation ===== */
        .site-header {
            background-color: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-nav);
        }
        .site-header .top-bar {
            background: transparent;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            flex-wrap: wrap;
        }
        .site-header .top-bar-left {
            display: flex;
            align-items: center;
            flex: 1 1 auto;
        }
        .site-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.5rem;
        }
        .site-logo:hover,
        .site-logo:focus {
            color: #fff;
            opacity: 0.9;
        }
        .site-header .top-bar-right {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
            align-items: center;
        }
        .nav-list li a {
            display: block;
            padding: 8px 16px;
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 400;
            border-radius: var(--radius-btn);
            transition: background var(--transition), color var(--transition);
        }
        .nav-list li a:hover,
        .nav-list li a:focus {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 500;
        }
        .nav-cta {
            background: var(--secondary) !important;
            color: #fff !important;
            font-weight: 500 !important;
            padding: 8px 20px !important;
            border-radius: var(--radius-btn) !important;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
        }
        .nav-cta:hover,
        .nav-cta:focus {
            background: var(--secondary-dark) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(212, 163, 115, 0.35) !important;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 8px 12px;
            cursor: pointer;
            border-radius: var(--radius-btn);
            transition: background var(--transition);
        }
        .menu-toggle:hover,
        .menu-toggle:focus {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-nav {
            display: none;
            background: var(--bg-dark);
            padding: 12px 20px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-nav .nav-list {
            flex-direction: column;
            gap: 2px;
            width: 100%;
        }
        .mobile-nav .nav-list li a {
            padding: 12px 16px;
            width: 100%;
            border-radius: var(--radius-btn);
        }
        .mobile-nav .nav-list li a.active {
            background: var(--primary);
        }
        .mobile-nav .nav-cta {
            text-align: center;
            margin-top: 8px;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(42, 74, 74, 0.82) 0%, rgba(59, 122, 122, 0.70) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            padding: 60px 20px;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }
        .hero-content .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            line-height: 1.7;
            font-weight: 400;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-block;
            padding: 14px 36px;
            background: var(--secondary);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            min-height: 44px;
            line-height: 1.2;
            text-align: center;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 163, 115, 0.35);
            color: #fff;
        }
        .btn-outline {
            display: inline-block;
            padding: 14px 36px;
            background: transparent;
            color: #fff;
            font-size: 1rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            border: 2px solid rgba(255, 255, 255, 0.7);
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            min-height: 44px;
            line-height: 1.2;
            text-align: center;
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Section Spacing ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block-sm {
            padding: 40px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== Category Nav Panel (卡片化导航面板) ===== */
        .category-panel {
            background: var(--bg-card);
            border-radius: var(--radius-nav);
            box-shadow: var(--shadow-nav);
            padding: 40px 36px;
            margin-top: -40px;
            position: relative;
            z-index: 3;
        }
        .category-panel-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .category-nav-cards {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            flex: 1 1 auto;
        }
        .category-nav-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 22px;
            background: var(--bg-warm);
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            cursor: pointer;
            border: none;
            min-height: 44px;
        }
        .category-nav-item i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        .category-nav-item:hover,
        .category-nav-item:focus {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(59, 122, 122, 0.25);
        }
        .category-nav-item:hover i,
        .category-nav-item:focus i {
            color: #fff;
        }
        .category-nav-item.active {
            background: var(--primary);
            color: #fff;
        }
        .category-nav-item.active i {
            color: #fff;
        }
        .panel-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 0.95rem;
            transition: background var(--transition), transform var(--transition);
            min-height: 44px;
            border: none;
            cursor: pointer;
            flex-shrink: 0;
        }
        .panel-cta:hover,
        .panel-cta:focus {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Cards ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover,
        .feature-card:focus-within {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--bg-warm);
        }
        .feature-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .feature-card .card-tag {
            display: inline-block;
            padding: 3px 12px;
            background: var(--secondary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 500;
            border-radius: 20px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .feature-card .card-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .feature-card .card-title a {
            color: var(--accent);
        }
        .feature-card .card-title a:hover {
            color: var(--primary);
        }
        .feature-card .card-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .feature-card .card-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .feature-card .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ===== CMS List / 资讯列表 ===== */
        .cms-list-wrap {
            background: var(--bg-warm);
            border-radius: var(--radius-nav);
            padding: 32px 32px 28px;
        }
        .cms-list-item {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 16px 20px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
        }
        .cms-list-item:last-child {
            border-bottom: none;
        }
        .cms-list-item .cms-info {
            flex: 1 1 200px;
            min-width: 0;
        }
        .cms-list-item .cms-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .cms-list-item .cms-title a {
            color: var(--accent);
        }
        .cms-list-item .cms-title a:hover {
            color: var(--primary);
        }
        .cms-list-item .cms-summary {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 4px;
        }
        .cms-list-item .cms-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .cms-list-item .cms-meta .cms-cat {
            display: inline-block;
            padding: 1px 10px;
            background: var(--secondary);
            color: #fff;
            border-radius: 20px;
            font-size: 0.7rem;
            font-weight: 500;
        }
        .cms-list-item .cms-link {
            flex-shrink: 0;
            align-self: center;
        }
        .cms-list-item .cms-link a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            white-space: nowrap;
        }
        .cms-list-item .cms-link a:hover {
            color: var(--primary-dark);
        }
        .cms-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
        }
        .cms-empty i {
            font-size: 2.4rem;
            margin-bottom: 12px;
            display: block;
            color: var(--text-muted);
        }
        .cms-empty p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== FAQ Accordion ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 14px;
            overflow: hidden;
            border-left: 4px solid var(--primary);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--accent);
            cursor: pointer;
            background: var(--bg-card);
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-question:hover,
        .faq-question:focus {
            background: rgba(59, 122, 122, 0.04);
        }
        .faq-question i {
            font-size: 1rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px 24px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p:last-child {
            margin-bottom: 0;
        }

        /* ===== CTA / Share Block ===== */
        .cta-share-block {
            background: var(--bg-warm);
            border-radius: 16px;
            padding: 48px 40px;
            text-align: center;
        }
        .cta-share-block h3 {
            font-size: 1.4rem;
            margin-bottom: 8px;
            color: var(--accent);
        }
        .cta-share-block p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-share-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-share-actions .btn-icon {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            min-height: 44px;
        }
        .cta-share-actions .btn-icon:hover,
        .cta-share-actions .btn-icon:focus {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(59, 122, 122, 0.3);
            color: #fff;
        }
        .cta-share-actions .btn-icon-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background var(--transition), color var(--transition), transform var(--transition);
            min-height: 44px;
        }
        .cta-share-actions .btn-icon-outline:hover,
        .cta-share-actions .btn-icon-outline:focus {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Related Cards Compact ===== */
        .related-grid .feature-card .card-body {
            padding: 16px 18px 18px;
        }
        .related-grid .feature-card .card-title {
            font-size: 1rem;
        }
        .related-grid .feature-card .card-summary {
            font-size: 0.85rem;
            -webkit-line-clamp: 2;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 56px 0 32px;
        }
        .site-footer .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            justify-content: space-between;
        }
        .site-footer .footer-col {
            flex: 1 1 200px;
            min-width: 160px;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-col p,
        .site-footer .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
            display: block;
            transition: color var(--transition);
        }
        .site-footer .footer-col a:hover,
        .site-footer .footer-col a:focus {
            color: var(--secondary);
        }
        .site-footer .footer-brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand i {
            color: var(--secondary);
        }
        .site-footer .footer-copyright {
            text-align: center;
            padding-top: 28px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .site-footer .footer-social a:hover,
        .site-footer .footer-social a:focus {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .hero-content .hero-sub {
                font-size: 1.05rem;
            }
            .category-panel {
                padding: 28px 24px;
                margin-top: -30px;
            }
            .category-nav-cards {
                gap: 8px;
            }
            .category-nav-item {
                padding: 10px 16px;
                font-size: 0.9rem;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header .top-bar {
                padding: 0 16px;
                min-height: 56px;
            }
            .site-logo {
                font-size: 1.1rem;
            }
            .menu-toggle {
                display: block;
            }
            .desktop-nav {
                display: none !important;
            }
            .mobile-nav.open {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero-section {
                min-height: 50vh;
            }
            .hero-content {
                padding: 40px 16px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-sub {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                max-width: 280px;
                padding: 12px 28px;
            }
            .category-panel {
                padding: 24px 20px;
                margin-top: -24px;
                border-radius: 10px;
            }
            .category-panel-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .category-nav-cards {
                justify-content: center;
            }
            .panel-cta {
                justify-content: center;
                width: 100%;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .cms-list-wrap {
                padding: 20px 18px 16px;
            }
            .cms-list-item {
                flex-direction: column;
                gap: 8px;
                padding: 14px 0;
            }
            .cms-list-item .cms-link {
                align-self: flex-start;
            }
            .cta-share-block {
                padding: 32px 20px;
            }
            .cta-share-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-share-actions .btn-icon,
            .cta-share-actions .btn-icon-outline {
                width: 100%;
                max-width: 260px;
                justify-content: center;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-grid {
                flex-direction: column;
                gap: 24px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 14px 18px;
                font-size: 0.9rem;
            }
        }

        @media screen and (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content .hero-sub {
                font-size: 0.88rem;
            }
            .category-nav-item {
                font-size: 0.82rem;
                padding: 8px 14px;
            }
            .category-nav-item i {
                font-size: 0.95rem;
            }
            .feature-card .card-body {
                padding: 16px 16px 20px;
            }
            .feature-card .card-title {
                font-size: 1rem;
            }
            .site-logo {
                font-size: 1rem;
            }
            .site-logo i {
                font-size: 1.2rem;
            }
            .section-title h2 {
                font-size: 1.3rem;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

/* roulang page: article */
:root {
            --primary: #3B7A7A;
            --primary-dark: #2E6262;
            --primary-light: #5A9B9B;
            --accent: #D4A373;
            --accent-dark: #C08A5A;
            --accent-light: #E8C9A8;
            --emphasis: #2A4A4A;
            --bg-warm: #FCF9F5;
            --bg-card: #FFFFFF;
            --bg-light: #F5F0EB;
            --text-primary: #2D3A3A;
            --text-secondary: #5A6B6B;
            --text-muted: #8A9B9B;
            --text-white: #FFFFFF;
            --border-light: #E8E3DD;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --radius-xs: 4px;
            --shadow-card: 0 4px 12px rgba(42, 74, 74, 0.08);
            --shadow-panel: 0 2px 16px rgba(42, 74, 74, 0.12);
            --shadow-hover: 0 6px 20px rgba(59, 122, 122, 0.25);
            --transition-base: 0.2s ease;
            --transition-card: 0.25s ease;
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --max-width: 1200px;
            --gap-section: 4.5rem;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-warm);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a { color: var(--primary); text-decoration: none; transition: var(--transition-base); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 820px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--emphasis);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.5em;
        }

        h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
        h2 { font-size: 2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }

        p { margin-bottom: 1.2em; color: var(--text-primary); }
        .text-secondary { color: var(--text-secondary); }
        .text-muted { color: var(--text-muted); }

        .section-padding { padding: var(--gap-section) 0; }
        .section-title { text-align: center; margin-bottom: 2.5rem; }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }

        /* === Header / Nav === */
        .site-header {
            background: var(--emphasis);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(42,74,74,0.25);
        }

        .site-header .top-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: 64px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.01em;
        }
        .site-logo i { color: var(--accent); font-size: 1.5rem; }
        .site-logo:hover { color: var(--accent-light); }

        .desktop-nav .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }

        .desktop-nav .nav-list li a {
            display: block;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.85);
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }

        .desktop-nav .nav-list li a:hover,
        .desktop-nav .nav-list li a.active {
            color: var(--text-white);
            background: rgba(255,255,255,0.12);
        }

        .desktop-nav .nav-list li a.active {
            background: var(--primary);
        }

        .desktop-nav .nav-list li a.nav-cta {
            background: var(--accent);
            color: var(--emphasis);
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
        }
        .desktop-nav .nav-list li a.nav-cta:hover {
            background: var(--accent-dark);
            color: var(--emphasis);
            box-shadow: var(--shadow-hover);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-xs);
        }
        .menu-toggle:focus-visible { outline: 2px solid var(--accent); }

        .mobile-nav {
            display: none;
            background: var(--emphasis);
            padding: 10px 20px 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .mobile-nav.open { display: block; }
        .mobile-nav .nav-list { list-style: none; margin: 0; }
        .mobile-nav .nav-list li a {
            display: block;
            padding: 12px 16px;
            color: rgba(255,255,255,0.85);
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }
        .mobile-nav .nav-list li a:hover,
        .mobile-nav .nav-list li a.active { background: rgba(255,255,255,0.12); color: var(--text-white); }
        .mobile-nav .nav-list li a.nav-cta {
            background: var(--accent);
            color: var(--emphasis);
            font-weight: 600;
            margin-top: 6px;
        }

        /* === Breadcrumb === */
        .breadcrumb-area {
            background: var(--bg-light);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb-area .breadcrumbs {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            margin: 0;
            padding: 0;
            font-size: 0.9rem;
        }
        .breadcrumb-area .breadcrumbs li { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); }
        .breadcrumb-area .breadcrumbs li::before { content: '›'; color: var(--text-muted); font-weight: 600; }
        .breadcrumb-area .breadcrumbs li:first-child::before { display: none; }
        .breadcrumb-area .breadcrumbs a { color: var(--primary); }
        .breadcrumb-area .breadcrumbs a:hover { color: var(--primary-dark); text-decoration: underline; }
        .breadcrumb-area .breadcrumbs .current { color: var(--text-muted); font-weight: 500; }

        /* === Article Header === */
        .article-header {
            padding: 3rem 0 1.5rem;
        }
        .article-header h1 {
            font-size: 2.4rem;
            margin-bottom: 0.6rem;
            line-height: 1.25;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.8rem;
            padding-top: 0.8rem;
            border-top: 1px solid var(--border-light);
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }
        .article-meta .category-label {
            display: inline-block;
            background: var(--accent-light);
            color: var(--emphasis);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* === Article Content === */
        .article-content {
            padding-bottom: 2.5rem;
        }
        .article-content .content-body {
            line-height: 2;
            font-size: 1.05rem;
            color: var(--text-primary);
        }
        .article-content .content-body h2 {
            font-size: 1.6rem;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
            padding-bottom: 0.3rem;
            border-bottom: 2px solid var(--accent-light);
        }
        .article-content .content-body h3 {
            font-size: 1.25rem;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        .article-content .content-body p {
            margin-bottom: 1.4em;
        }
        .article-content .content-body img {
            margin: 1.8rem auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
        }
        .article-content .content-body blockquote {
            margin: 1.5rem 0;
            padding: 1.2rem 1.8rem;
            background: var(--bg-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 1rem 0 1.4rem 1.8rem;
        }
        .article-content .content-body li {
            margin-bottom: 0.4rem;
        }
        .article-content .content-body code {
            background: var(--bg-light);
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }
        .article-content .content-body pre {
            background: var(--emphasis);
            color: #f0f0f0;
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .article-content .content-body pre code {
            background: none;
            color: inherit;
            padding: 0;
        }
        .article-content .content-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content .content-body a:hover { color: var(--primary-dark); }

        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-muted); margin-bottom: 1rem; }
        .article-not-found h3 { color: var(--text-secondary); }
        .article-not-found a { display: inline-block; margin-top: 1rem; }

        /* === Related === */
        .related-section {
            background: var(--bg-light);
            padding: 3.5rem 0;
        }
        .related-section .section-title h2 { font-size: 1.6rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 1.5rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-card);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-light);
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 1.2rem 1.4rem 1.4rem;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
            color: var(--emphasis);
        }
        .related-card .card-body h4 a { color: inherit; }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body .card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .card-body .card-date i { color: var(--accent); font-size: 0.75rem; }

        .related-back {
            text-align: center;
            margin-top: 2.5rem;
        }
        .related-back a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--primary);
        }
        .related-back a:hover { color: var(--primary-dark); text-decoration: underline; }

        /* === Footer === */
        .site-footer {
            background: var(--emphasis);
            color: rgba(255,255,255,0.8);
            padding: 4rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 2.5rem;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 0.8rem;
        }
        .footer-brand i { color: var(--accent); font-size: 1.4rem; }
        .footer-col p { font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 1.7; margin-bottom: 0; }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition-base);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 4px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.15rem;
            transition: var(--transition-base);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--emphasis);
            padding-left: 0;
            transform: scale(1.08);
        }
        .footer-copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }

        /* === Buttons === */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition-base);
            min-height: 44px;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: var(--accent);
            color: var(--emphasis);
        }
        .btn-secondary:hover {
            background: var(--accent-dark);
            color: var(--emphasis);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
        }

        /* === JSON-LD hidden === */
        .hidden-json { display: none; }

        /* === Responsive === */
        @media screen and (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            h1 { font-size: 2.2rem; }
            .article-header h1 { font-size: 2rem; }
        }

        @media screen and (max-width: 768px) {
            .desktop-nav { display: none; }
            .menu-toggle { display: block; }

            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .related-grid { grid-template-columns: 1fr; }

            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .article-header h1 { font-size: 1.6rem; }

            .section-padding { padding: 2.8rem 0; }

            .article-meta { flex-direction: column; gap: 8px; }

            .container-narrow { padding: 0 16px; }
        }

        @media screen and (max-width: 520px) {
            .site-header .top-bar { padding: 0 12px; }
            .site-logo { font-size: 1.15rem; }
            .site-logo i { font-size: 1.2rem; }
            h1 { font-size: 1.5rem; }
            .article-header h1 { font-size: 1.4rem; }
            .btn { padding: 10px 20px; font-size: 0.95rem; }
            .related-card .card-body { padding: 1rem; }
        }

        @media screen and (min-width: 769px) {
            .mobile-nav { display: none !important; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #3B7A7A;
            --primary-dark: #2E6262;
            --primary-light: #4A9A9A;
            --accent: #D4A373;
            --accent-dark: #C48A5A;
            --emphasis: #2A4A4A;
            --bg-page: #FCF9F5;
            --bg-card: #FFFFFF;
            --bg-warm: #F5F0EB;
            --bg-deep: #2A4A4A;
            --text-primary: #2D3A3A;
            --text-secondary: #5A6B6B;
            --text-muted: #8A9B9B;
            --text-white: #FFFFFF;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-card: 0 4px 12px rgba(42,74,74,0.08);
            --shadow-panel: 0 2px 16px rgba(42,74,74,0.12);
            --shadow-hover: 0 6px 20px rgba(59,122,122,0.25);
            --transition: 0.25s ease;
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --container-max: 1200px;
            --gutter: 20px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background: var(--bg-page);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button,
        input,
        textarea {
            font-family: var(--font-stack);
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--emphasis);
            line-height: 1.3;
            margin-top: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--gutter);
        }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-deep);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(42,74,74,0.2);
        }
        .site-header .top-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--gutter);
            min-height: 64px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .desktop-nav .nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .desktop-nav .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            position: relative;
        }
        .desktop-nav .nav-list li a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .desktop-nav .nav-list li a.active {
            color: var(--text-white);
            background: rgba(59, 122, 122, 0.5);
        }
        .desktop-nav .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent) !important;
            color: var(--text-white) !important;
            border-radius: var(--radius-md) !important;
            padding: 8px 20px !important;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta:hover {
            background: var(--accent-dark) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(212, 163, 115, 0.3);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-md);
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .menu-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .mobile-nav {
            display: none;
            background: var(--bg-deep);
            padding: 0 var(--gutter) 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mobile-nav .nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav .nav-list li a {
            display: block;
            padding: 12px 16px;
            color: var(--text-muted);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .mobile-nav .nav-list li a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-nav .nav-list li a.active {
            color: var(--text-white);
            background: rgba(59, 122, 122, 0.4);
        }
        .mobile-nav .nav-list li a.nav-cta {
            margin-top: 8px;
            justify-content: center;
        }
        .mobile-nav.open {
            display: block;
        }

        /* ===== 首屏 Hero ===== */
        .hero {
            position: relative;
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(42, 74, 74, 0.65);
            z-index: 1;
        }
        .hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 40px var(--gutter);
        }
        .hero h1 {
            font-size: 3rem;
            color: var(--text-white);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .hero .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--primary);
            color: var(--text-white);
            font-size: 1.05rem;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            color: var(--text-white);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--accent);
            color: var(--text-white);
            font-size: 1.05rem;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            text-decoration: none;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 20px rgba(212, 163, 115, 0.35);
            transform: translateY(-2px);
            color: var(--text-white);
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 34px;
            background: transparent;
            color: var(--text-white);
            font-size: 1.05rem;
            font-weight: 500;
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            text-decoration: none;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--emphasis);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-bg-warm {
            background: var(--bg-warm);
        }
        .section-bg-white {
            background: var(--bg-card);
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-custom .card-img {
            aspect-ratio: 16 / 9;
            object-fit: cover;
            width: 100%;
            display: block;
        }
        .card-custom .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-custom .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--accent);
            color: var(--text-white);
            font-size: 0.8rem;
            border-radius: 20px;
            margin-bottom: 10px;
            align-self: flex-start;
            font-weight: 500;
        }
        .card-custom h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--emphasis);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-custom p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .card-custom .card-link {
            color: var(--primary);
            font-weight: 500;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .card-custom .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ===== 特色卡片（全覆盖） ===== */
        .feature-grid .card-custom {
            border-top: 4px solid var(--primary);
        }
        .feature-grid .card-custom:nth-child(2) {
            border-top-color: var(--accent);
        }
        .feature-grid .card-custom:nth-child(3) {
            border-top-color: var(--primary-light);
        }

        /* ===== 场景卡片 ===== */
        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scene-card .scene-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: background var(--transition);
        }
        .scene-card:hover .scene-icon {
            background: var(--primary);
            color: var(--text-white);
        }
        .scene-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--emphasis);
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
            flex: 1;
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            counter-reset: step;
        }
        .step-item {
            counter-increment: step;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            height: 100%;
        }
        .step-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            transition: background var(--transition);
        }
        .step-item:hover .step-number {
            background: var(--accent);
        }
        .step-content {
            flex: 1;
        }
        .step-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--emphasis);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
            overflow: hidden;
            border-left: 4px solid var(--primary);
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-left-color: var(--accent);
        }
        .faq-question {
            padding: 18px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--emphasis);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
            min-height: 44px;
        }
        .faq-question:hover {
            background: rgba(59, 122, 122, 0.04);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 1rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.95rem;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-answer p {
            margin: 0;
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            background: var(--bg-deep);
            border-radius: var(--radius-2xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(59, 122, 122, 0.2);
            z-index: 0;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 163, 115, 0.15);
            z-index: 0;
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            color: var(--text-white);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-block .btn-accent {
            font-size: 1.1rem;
            padding: 16px 44px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumbs {
            padding: 16px 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            background: var(--bg-warm);
        }
        .breadcrumbs a {
            color: var(--primary);
        }
        .breadcrumbs a:hover {
            color: var(--primary-dark);
        }
        .breadcrumbs span {
            color: var(--text-secondary);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: var(--text-muted);
            padding: 56px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .site-footer .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .site-footer .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .site-footer .footer-copyright {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .hero h1 {
                font-size: 2.4rem;
            }
            .hero .hero-sub {
                font-size: 1.05rem;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media screen and (max-width: 768px) {
            .desktop-nav {
                display: none !important;
            }
            .menu-toggle {
                display: block;
            }
            .hero {
                min-height: 50vh;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero .hero-sub {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
            .hero .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-accent,
            .btn-outline {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .step-item {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .step-number {
                margin-bottom: 8px;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 14px 18px;
            }
            .faq-answer {
                padding: 0 18px 14px;
                font-size: 0.9rem;
            }
            .card-custom .card-body {
                padding: 16px 18px 20px;
            }
        }

        @media screen and (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero .hero-sub {
                font-size: 0.88rem;
            }
            .section-title h2 {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 14px;
            }
            .site-header .top-bar {
                padding: 0 14px;
            }
            .card-custom h3 {
                font-size: 1.05rem;
            }
            .scene-card {
                padding: 24px 16px;
            }
            .scene-card .scene-icon {
                width: 52px;
                height: 52px;
                font-size: 1.4rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 16px;
        }
        .mt-2 {
            margin-top: 32px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .gap-1 {
            gap: 16px;
        }
        .gap-2 {
            gap: 24px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }