/* roulang page: index */
:root {
            --primary: #c8102e;
            --primary-dark: #a00d24;
            --primary-light: #fbeaec;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d4a;
            --accent: #f5c518;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-muted: #7a7a9a;
            --border: #e6e6f0;
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
            --spacer: 2rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--nav-height);
        }

        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;
        }

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

        button,
        .button {
            cursor: pointer;
            font-family: var(--font);
            transition: var(--transition);
        }
        button:focus-visible,
        .button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .section-pad {
            padding: 5rem 0;
        }
        .section-pad-sm {
            padding: 3rem 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin-bottom: 2.5rem;
        }
        .text-center {
            text-align: center;
        }

        /* header / nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .site-logo i {
            font-size: 1.5rem;
        }
        .site-logo:hover {
            color: var(--primary-dark);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-wrap a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-wrap a:hover,
        .nav-wrap a:focus {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-wrap a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            padding: 0.25rem 0.5rem;
        }
        .nav-toggle:hover {
            color: var(--primary);
        }

        /* hero */
        .hero {
            min-height: 520px;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 4rem 1.25rem;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 1.2rem;
            letter-spacing: 0.5px;
        }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2.2rem;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            box-shadow: 0 4px 16px rgba(200, 16, 46, 0.3);
            transition: var(--transition);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            box-shadow: 0 6px 24px rgba(200, 16, 46, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2.2rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* badges */
        .badge {
            display: inline-block;
            padding: 0.3rem 1rem;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--secondary);
        }

        /* cards */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--border);
        }
        .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 1rem;
        }
        .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            align-items: center;
            margin-top: auto;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border);
        }
        .card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.8rem;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        /* 特色板块 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .feature-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 2rem 1.8rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            border: 1px solid var(--border);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
            display: inline-block;
            width: 64px;
            height: 64px;
            line-height: 64px;
            border-radius: 50%;
            background: var(--primary-light);
        }
        .feature-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 数据块 */
        .stats-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            background: var(--secondary);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            color: #fff;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .num {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent);
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            gap: 1rem;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            padding: 1.2rem 1.8rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            list-style: none;
            font-size: 1rem;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::before {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::before {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 1.8rem 1.4rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 4rem 3rem;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 2.8rem;
            background: #fff;
            color: var(--primary);
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .btn-cta:hover,
        .btn-cta:focus {
            background: var(--accent);
            color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }

        /* footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 2rem;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-brand h4 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            margin-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 文章列表区块（CMS） */
        .post-list .card .card-img {
            height: 180px;
        }

        /* empty state */
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-wrap {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            :root {
                --nav-height: 64px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-wrap {
                grid-template-columns: 1fr 1fr;
                padding: 2rem 1rem;
            }
            .stat-item .num {
                font-size: 1.8rem;
            }
            .cta-section {
                padding: 2.5rem 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .nav-wrap {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 1rem 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            }
            .nav-wrap.open {
                display: flex;
            }
            .nav-wrap a {
                padding: 0.8rem 1.5rem;
                width: 100%;
                border-radius: 0;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-wrap {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-sub {
                font-size: 0.95rem;
            }
            .card-body {
                padding: 1.2rem;
            }
            .site-logo {
                font-size: 1.1rem;
            }
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 6px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2342;
            --secondary: #0e9f6e;
            --secondary-light: #10b981;
            --accent: #f59e0b;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f2342;
            --bg-muted: #f1f5f9;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #f1f5f9;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        button, .button { cursor: pointer; font-family: inherit; transition: var(--transition); }
        button:focus-visible, .button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
        h2 { font-size: 2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.375rem; }
        h4 { font-size: 1.125rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .section-padding { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 16px; }
        .section-subtitle { text-align: center; max-width: 680px; margin: 0 auto 48px; color: var(--text-secondary); font-size: 1.125rem; }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .mb-4 { margin-bottom: 32px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mt-4 { margin-top: 32px; }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.01em;
        }
        .site-logo i { color: var(--secondary); font-size: 1.5rem; }
        .site-logo:hover { color: var(--primary-dark); }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-wrap a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-wrap a i { margin-right: 6px; }
        .nav-wrap a:hover { background: var(--bg-muted); color: var(--primary); }
        .nav-wrap a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .nav-wrap a.active:hover { background: var(--primary-light); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-primary); padding: 8px; border-radius: var(--radius-sm); }
        .nav-toggle:hover { background: var(--bg-muted); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .hero .container { position: relative; z-index: 2; text-align: center; }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 720px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-badges { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
        .hero-badge {
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.9);
            border: 1px solid rgba(255,255,255,0.15);
        }
        .hero-badge i { margin-right: 6px; color: var(--secondary-light); }
        .hero-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .btn-primary {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            font-weight: 600;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 4px 16px rgba(14,159,110,0.35);
            transition: var(--transition);
        }
        .btn-primary:hover { background: #0c8a5c; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(14,159,110,0.4); }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 1.05rem;
            border: 2px solid rgba(255,255,255,0.35);
            transition: var(--transition);
        }
        .btn-secondary:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.6); transform: translateY(-2px); }

        /* ===== 功能卖点 ===== */
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
        .feature-icon {
            width: 64px; height: 64px; border-radius: 16px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 18px; font-size: 1.6rem; color: #fff;
        }
        .feature-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
        .feature-card p { font-size: 0.95rem; margin-bottom: 0; }

        /* ===== 流程步骤 ===== */
        .steps-section { background: var(--bg-card); }
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
        .step-item { text-align: center; position: relative; }
        .step-num {
            width: 52px; height: 52px; border-radius: 50%;
            background: var(--primary);
            color: #fff; font-size: 1.3rem; font-weight: 700;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(26,58,107,0.3);
        }
        .step-item h4 { margin-bottom: 8px; font-size: 1.1rem; }
        .step-item p { font-size: 0.9rem; margin-bottom: 0; }
        .step-connector { display: none; }

        /* ===== 适用场景 ===== */
        .scenarios-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .scenario-card {
            display: flex; gap: 20px; align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .scenario-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .scenario-icon { flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px; background: var(--bg-muted); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary); }
        .scenario-card h4 { margin-bottom: 6px; font-size: 1.05rem; }
        .scenario-card p { font-size: 0.92rem; margin-bottom: 0; }

        /* ===== 数据统计 ===== */
        .stats-section { background: var(--primary-dark); position: relative; overflow: hidden; }
        .stats-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; opacity: 0.08; }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
        .stat-item { text-align: center; }
        .stat-number { font-size: 2.8rem; font-weight: 800; color: #fff; line-height: 1.1; margin-bottom: 6px; }
        .stat-label { font-size: 1rem; color: rgba(255,255,255,0.7); }

        /* ===== 信任证据 ===== */
        .trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .trust-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }
        .trust-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .trust-avatar { width: 56px; height: 56px; border-radius: 50%; background: var(--bg-muted); display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; font-size: 1.5rem; color: var(--primary); }
        .trust-card p { font-size: 0.92rem; font-style: italic; margin-bottom: 12px; }
        .trust-author { font-weight: 600; color: var(--text-primary); font-size: 0.95rem; }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-card); }
        .faq-list { max-width: 820px; margin: 0 auto; }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 18px 24px;
            background: var(--bg-body);
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-question:hover { background: var(--bg-muted); }
        .faq-question i { color: var(--primary); font-size: 0.9rem; transition: var(--transition); }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-answer p { font-size: 0.95rem; margin-bottom: 0; color: var(--text-secondary); }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; opacity: 0.08; }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2.2rem; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 28px; font-size: 1.1rem; }
        .cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .btn-cta-primary {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 16px 44px;
            border-radius: 40px;
            font-size: 1.1rem;
            border: none;
            box-shadow: 0 4px 20px rgba(245,158,11,0.4);
            transition: var(--transition);
        }
        .btn-cta-primary:hover { background: #e69009; color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(245,158,11,0.5); }
        .btn-cta-secondary {
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 16px 44px;
            border-radius: 40px;
            font-size: 1.1rem;
            border: 2px solid rgba(255,255,255,0.35);
            transition: var(--transition);
        }
        .btn-cta-secondary:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.6); transform: translateY(-2px); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 0;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand h4 { color: #fff; font-size: 1.2rem; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
        .footer-brand h4 i { color: var(--secondary-light); }
        .footer-brand p { font-size: 0.92rem; color: rgba(255,255,255,0.65); margin-bottom: 0; }
        .footer-col h5 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.04em; opacity: 0.8; }
        .footer-col a { display: block; color: rgba(255,255,255,0.65); font-size: 0.9rem; margin-bottom: 10px; transition: var(--transition); }
        .footer-col a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            margin-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            .hero h1 { font-size: 2.5rem; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .trust-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .container { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .site-header .container { position: relative; }
            .nav-toggle { display: block; }
            .nav-wrap {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                display: none;
                gap: 4px;
            }
            .nav-wrap.open { display: flex; }
            .nav-wrap a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
            .hero { min-height: 400px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .section-padding { padding: 56px 0; }
            .features-grid { grid-template-columns: 1fr; }
            .scenarios-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; gap: 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .stat-number { font-size: 2rem; }
            .trust-grid { grid-template-columns: 1fr; }
            .site-footer .container { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .hero-cta .btn-primary, .hero-cta .btn-secondary { width: 100%; text-align: center; }
            .cta-buttons .btn-cta-primary, .cta-buttons .btn-cta-secondary { width: 100%; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            h1 { font-size: 1.7rem; }
            h2 { font-size: 1.4rem; }
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.92rem; }
            .hero-badges { gap: 8px; }
            .hero-badge { font-size: 0.75rem; padding: 4px 12px; }
            .btn-primary, .btn-secondary { padding: 12px 24px; font-size: 0.95rem; }
            .btn-cta-primary, .btn-cta-secondary { padding: 14px 28px; font-size: 1rem; }
            .feature-card { padding: 24px 18px; }
            .scenario-card { flex-direction: column; align-items: center; text-align: center; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stat-number { font-size: 1.7rem; }
            .faq-question { padding: 14px 16px; font-size: 0.95rem; }
            .faq-answer { padding: 0 16px; }
            .faq-item.active .faq-answer { padding: 0 16px 16px; }
            .site-footer .container { gap: 20px; }
        }

        /* ===== 工具类 ===== */
        .badge {
            display: inline-block;
            background: var(--bg-muted);
            color: var(--text-secondary);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .badge-primary { background: rgba(26,58,107,0.1); color: var(--primary); }
        .badge-success { background: rgba(14,159,110,0.1); color: var(--secondary); }
        .divider { width: 60px; height: 4px; background: var(--secondary); border-radius: 4px; margin: 0 auto 20px; }
        .text-secondary { color: var(--text-secondary); }

        /* Foundation 覆写 */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        @media (max-width: 520px) { .grid-container { padding-left: 16px; padding-right: 16px; } }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c62828;
            --primary-dark: #8e0000;
            --primary-light: #ff5f52;
            --accent: #ff8f00;
            --accent-light: #ffc046;
            --bg-light: #fafafa;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-dark-alt: #16213e;
            --text-dark: #1a1a2e;
            --text-body: #333333;
            --text-muted: #666666;
            --text-light: #999999;
            --text-white: #ffffff;
            --border: #e8e8e8;
            --border-light: #f0f0f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-card: 0 2px 12px rgba(0,0,0,0.04);
            --transition: 0.3s ease;
            --font-primary: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        p { margin-bottom: 1rem; }
        button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }
        input, textarea { font-family: inherit; font-size: inherit; }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
        }

        /* ===== 站点头部 ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0,0,0,0.03);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .site-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            letter-spacing: -0.3px;
        }
        .site-logo i { font-size: 1.3rem; color: var(--accent); }
        .site-logo:hover { color: var(--primary-dark); }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: var(--border-light); }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-wrap a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-wrap a:hover { background: rgba(198,40,40,0.06); color: var(--primary); }
        .nav-wrap a.active {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 2px 8px rgba(198,40,40,0.25);
        }
        .nav-wrap a.active:hover { background: var(--primary-dark); color: var(--text-white); }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-wrap {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(0,0,0,0.08);
            }
            .nav-wrap.open { display: flex; }
            .nav-wrap a { width: 100%; padding: 12px 16px; }
        }
        @media (max-width: 520px) {
            .site-logo { font-size: 1.15rem; }
            .site-logo i { font-size: 1.1rem; }
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-alt) 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(26,26,46,0.85) 0%, rgba(22,33,62,0.92) 100%);
            z-index: 0;
        }
        .article-banner .container { position: relative; z-index: 1; }
        .article-banner .post-category {
            display: inline-block;
            padding: 4px 16px;
            background: var(--accent);
            color: var(--text-dark);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            max-width: 900px;
            line-height: 1.25;
        }
        .article-banner .post-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.75);
            flex-wrap: wrap;
        }
        .article-banner .post-meta i { margin-right: 6px; color: var(--accent-light); }
        @media (max-width: 768px) {
            .article-banner { padding: 60px 0 40px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-banner .post-meta { gap: 12px; font-size: 0.85rem; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.5rem; }
            .article-banner { padding: 40px 0 30px; }
        }

        /* ===== 文章正文区域 ===== */
        .article-main {
            padding: 48px 0 64px;
            background: var(--bg-light);
        }
        .article-content-wrap {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 48px 56px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
        }
        .article-content-wrap .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-content-wrap .content-body h2,
        .article-content-wrap .content-body h3,
        .article-content-wrap .content-body h4 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .article-content-wrap .content-body h2 { font-size: 1.6rem; border-bottom: 2px solid var(--border-light); padding-bottom: 8px; }
        .article-content-wrap .content-body h3 { font-size: 1.3rem; }
        .article-content-wrap .content-body p { margin-bottom: 1.2rem; }
        .article-content-wrap .content-body ul,
        .article-content-wrap .content-body ol { padding-left: 1.5rem; margin-bottom: 1.2rem; }
        .article-content-wrap .content-body li { list-style: disc; margin-bottom: 0.4rem; }
        .article-content-wrap .content-body a { color: var(--primary); font-weight: 500; }
        .article-content-wrap .content-body a:hover { text-decoration: underline; }
        .article-content-wrap .content-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            background: rgba(198,40,40,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .article-content-wrap .content-body img { border-radius: var(--radius-sm); margin: 1.5rem 0; }
        .article-content-wrap .content-body pre {
            background: var(--bg-dark);
            color: #f8f8f8;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            font-size: 0.9rem;
            line-height: 1.5;
            margin: 1.5rem 0;
        }
        .article-content-wrap .content-body code { font-family: 'Courier New', monospace; background: var(--border-light); padding: 2px 8px; border-radius: 4px; font-size: 0.9rem; }
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; }
        .not-found-box h3 { font-size: 1.5rem; margin-bottom: 12px; color: var(--text-dark); }
        .not-found-box p { color: var(--text-muted); margin-bottom: 20px; }
        .not-found-box .btn-primary { display: inline-block; }
        @media (max-width: 768px) {
            .article-content-wrap { padding: 28px 24px; }
            .article-content-wrap .content-body { font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .article-content-wrap { padding: 20px 16px; border-radius: var(--radius-sm); }
            .article-content-wrap .content-body h2 { font-size: 1.3rem; }
        }

        /* ===== 核心要点 ===== */
        .section-highlights {
            padding: 60px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
        }
        .section-highlights .section-title {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 8px;
        }
        .section-highlights .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1.05rem;
        }
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .highlight-card {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .highlight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .highlight-card i {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
        }
        .highlight-card h4 { font-size: 1.15rem; margin-bottom: 10px; color: var(--text-dark); }
        .highlight-card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }
        @media (max-width: 768px) {
            .highlights-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .section-highlights .section-title { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .highlights-grid { grid-template-columns: 1fr; gap: 16px; }
            .highlight-card { padding: 24px 16px; }
        }

        /* ===== 最新地址动态 ===== */
        .section-address {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .section-address .section-title {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 8px;
        }
        .section-address .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1.05rem;
        }
        .address-timeline {
            max-width: 800px;
            margin: 0 auto;
        }
        .address-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px dashed var(--border);
        }
        .address-item:last-child { border-bottom: none; }
        .address-item .addr-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: var(--text-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .address-item .addr-info { flex: 1; }
        .address-item .addr-info h5 { font-size: 1.05rem; margin-bottom: 4px; color: var(--text-dark); }
        .address-item .addr-info p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }
        .address-item .addr-tag {
            flex-shrink: 0;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: #e8f5e9;
            color: #2e7d32;
        }
        .address-item .addr-tag.hot { background: #fce4ec; color: var(--primary); }
        .address-item .addr-tag.new { background: #e3f2fd; color: #1565c0; }
        @media (max-width: 520px) {
            .address-item { flex-wrap: wrap; gap: 12px; }
            .address-item .addr-tag { width: 100%; text-align: center; }
            .section-address .section-title { font-size: 1.5rem; }
        }

        /* ===== 安全访问指南 ===== */
        .section-safety {
            padding: 60px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
        }
        .section-safety .section-title {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 8px;
        }
        .section-safety .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1.05rem;
        }
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .safety-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-light);
            padding: 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .safety-card:hover { box-shadow: var(--shadow); border-color: var(--border); }
        .safety-card i {
            font-size: 1.8rem;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .safety-card h5 { font-size: 1.05rem; margin-bottom: 6px; color: var(--text-dark); }
        .safety-card p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 0; }
        @media (max-width: 768px) {
            .safety-grid { grid-template-columns: 1fr; gap: 16px; }
            .section-safety .section-title { font-size: 1.5rem; }
        }

        /* ===== 相关推荐 ===== */
        .section-related {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .section-related .section-title {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 40px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .related-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--border-light);
        }
        .related-card .card-body {
            padding: 20px 20px 24px;
        }
        .related-card .card-body h5 { font-size: 1.05rem; margin-bottom: 8px; color: var(--text-dark); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .read-more {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
        }
        .related-card .card-body .read-more i { transition: transform var(--transition); }
        .related-card .card-body .read-more:hover i { transform: translateX(4px); }
        @media (max-width: 768px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .section-related .section-title { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; gap: 16px; }
            .related-card .card-img { height: 180px; }
        }

        /* ===== FAQ ===== */
        .section-faq {
            padding: 60px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
        }
        .section-faq .section-title {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 8px;
        }
        .section-faq .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1.05rem;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--border); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-question:hover { background: rgba(198,40,40,0.03); }
        .faq-question i { color: var(--primary); transition: transform var(--transition); font-size: 1rem; flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        @media (max-width: 520px) {
            .faq-question { padding: 14px 16px; font-size: 0.95rem; }
            .faq-answer { padding: 0 16px 14px; }
            .section-faq .section-title { font-size: 1.5rem; }
        }

        /* ===== CTA ===== */
        .section-cta {
            padding: 64px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-alt) 100%);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .section-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26,26,46,0.88);
            z-index: 0;
        }
        .section-cta .container { position: relative; z-index: 1; text-align: center; }
        .section-cta h2 {
            font-size: 2rem;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .section-cta p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary, .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(198,40,40,0.35);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.4);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-outline:active { transform: translateY(0); }
        @media (max-width: 520px) {
            .section-cta h2 { font-size: 1.5rem; }
            .section-cta p { font-size: 1rem; }
            .btn-primary, .btn-outline { padding: 12px 24px; font-size: 0.95rem; width: 100%; justify-content: center; }
        }

        /* ===== 站点页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 0;
            border-top: 4px solid var(--primary);
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand h4 {
            font-size: 1.2rem;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .footer-brand h4 i { color: var(--accent); }
        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            padding: 4px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover { color: var(--accent-light); padding-left: 6px; }
        .footer-bottom {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            margin-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 8px;
        }
        @media (max-width: 768px) {
            .site-footer .container { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .site-footer .container { grid-template-columns: 1fr; gap: 24px; }
            .footer-col { text-align: center; }
            .footer-col a:hover { padding-left: 0; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .section-title { font-size: 1.8rem; font-weight: 800; color: var(--text-dark); }
        .section-sub { font-size: 1.05rem; color: var(--text-muted); }
        @media (max-width: 520px) {
            .section-title { font-size: 1.5rem; }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        @media (max-width: 520px) {
            .grid-container { padding-left: 16px; padding-right: 16px; }
        }