/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0a2540;
            --primary-light: #1a3a5c;
            --primary-dark: #06182b;
            --accent: #e8a838;
            --accent-light: #f0c060;
            --accent-dark: #c88a20;
            --bg-body: #f7f9fc;
            --bg-white: #ffffff;
            --bg-light: #eef2f7;
            --bg-dark: #0a2540;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #7a7a9a;
            --text-white: #ffffff;
            --border-color: #e2e6ee;
            --border-light: #f0f2f6;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(10,37,64,0.06);
            --shadow-md: 0 8px 30px rgba(10,37,64,0.08);
            --shadow-lg: 0 16px 48px rgba(10,37,64,0.12);
            --shadow-hover: 0 12px 40px rgba(10,37,64,0.15);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }
        h1 { font-size: 2.75rem; }
        h2 { font-size: 2.0rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; width: 100%; }
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 48px 0; }
        .text-center { text-align: center; }
        .text-muted { color: var(--text-muted); }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 16px rgba(10,37,64,0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .logo i { color: var(--accent); font-size: 1.5rem; }
        .logo:hover { color: var(--primary); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            display: block;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--primary); background: var(--bg-light); }
        .nav-list a.active {
            color: var(--primary);
            background: var(--bg-light);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 24px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,168,56,0.15); }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 8px 8px 0;
            font-size: 0.9rem;
            color: var(--text-primary);
            width: 140px;
            outline: none;
        }
        .search-box input::placeholder { color: var(--text-muted); }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 6px;
            font-size: 0.95rem;
        }
        .search-box button:hover { color: var(--primary); }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 24px;
            border: none;
            border-radius: 24px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta:hover { background: var(--accent-light); color: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,168,56,0.35); }
        .btn-cta:active { transform: scale(0.97); }
        .hamburger { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 4px; }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.45;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,37,64,0.88) 0%, rgba(10,37,64,0.40) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 100px 24px;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .hero-actions .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.05rem;
            padding: 14px 36px;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hero-actions .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,168,56,0.4); }
        .hero-actions .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 14px 36px;
            border: 2px solid rgba(255,255,255,0.35);
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hero-actions .btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(232,168,56,0.08); transform: translateY(-2px); }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-top: 40px;
        }
        .hero-badges span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            background: rgba(255,255,255,0.08);
            padding: 6px 16px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .hero-badges i { color: var(--accent); }

        /* ===== Section Titles ===== */
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .accent-line {
            width: 48px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px auto 0;
        }

        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
        .feature-card .icon-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .feature-card:hover .icon-circle { background: var(--accent); color: var(--bg-white); }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--primary); }
        .feature-card p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 0; }

        /* ===== Category Section ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .category-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .category-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .category-card .card-body {
            padding: 20px 20px 24px;
        }
        .category-card .card-body h3 { font-size: 1.15rem; margin-bottom: 6px; }
        .category-card .card-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; }
        .category-card .card-tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--text-secondary);
            font-size: 0.8rem;
            padding: 3px 12px;
            border-radius: 12px;
            font-weight: 500;
        }

        /* ===== CMS List / Posts ===== */
        .post-list { display: flex; flex-direction: column; gap: 20px; }
        .post-item {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }
        .post-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
        .post-item .post-thumb {
            width: 100px;
            height: 100px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .post-item .post-info { flex: 1; min-width: 200px; }
        .post-item .post-info h4 { font-size: 1.1rem; margin-bottom: 4px; }
        .post-item .post-info h4 a { color: var(--text-primary); }
        .post-item .post-info h4 a:hover { color: var(--accent); }
        .post-item .post-info .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 6px;
        }
        .post-item .post-info .meta .cat { color: var(--accent); font-weight: 500; }
        .post-item .post-info .excerpt {
            font-size: 0.92rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-item { padding: 28px 16px; }
        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .num span { color: var(--accent); }
        .stat-item .label { font-size: 1rem; color: var(--text-muted); margin-top: 6px; }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 0.9rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(232,168,56,0.3);
        }
        .step-card .icon { font-size: 2rem; color: var(--primary); margin-bottom: 12px; margin-top: 8px; }
        .step-card h4 { font-size: 1.1rem; margin-bottom: 6px; }
        .step-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.0rem;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { color: var(--accent); font-size: 1.1rem; transition: var(--transition); flex-shrink: 0; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-section h2 { color: var(--text-white); font-size: 2.2rem; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.75); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; }
        .cta-section .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 44px;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
        }
        .cta-section .btn-cta-large:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(232,168,56,0.4); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .site-footer .brand-col .logo-footer {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .site-footer .brand-col .logo-footer i { color: var(--accent); }
        .site-footer .brand-col p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 16px; max-width: 320px; }
        .site-footer h4 { color: var(--text-white); font-size: 1.0rem; margin-bottom: 16px; font-weight: 600; }
        .site-footer ul li { margin-bottom: 8px; }
        .site-footer ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); }
        .site-footer ul a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            margin-top: 32px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding: 16px 0;
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb .sep { color: var(--text-muted); font-size: 0.7rem; }
        .breadcrumb .current { color: var(--text-primary); font-weight: 500; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .site-footer .container { grid-template-columns: 1fr 1fr; }
            .hero h1 { font-size: 2.6rem; }
            .section-title h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-list {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: 0 16px 40px rgba(0,0,0,0.1);
                border-top: 1px solid var(--border-light);
                display: none;
                gap: 4px;
            }
            .nav-list.open { display: flex; }
            .nav-list a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
            .nav-list a.active::after { display: none; }
            .nav-list a.active { background: var(--bg-light); }
            .search-box { display: none; }
            .header-actions .btn-cta { padding: 8px 18px; font-size: 0.85rem; }
            .hero { min-height: 400px; }
            .hero h1 { font-size: 2.0rem; }
            .hero p { font-size: 1.0rem; }
            .hero-actions .btn-primary, .hero-actions .btn-outline { padding: 12px 28px; font-size: 0.95rem; width: 100%; justify-content: center; }
            .section-padding { padding: 48px 0; }
            .feature-grid { grid-template-columns: 1fr 1fr; }
            .category-grid { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; }
            .post-item { padding: 16px; }
            .post-item .post-thumb { width: 80px; height: 80px; }
            .site-footer .container { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .cta-section .container { padding: 48px 24px; }
            .cta-section h2 { font-size: 1.7rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.92rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .section-title h2 { font-size: 1.5rem; }
            .post-item { flex-direction: column; }
            .post-item .post-thumb { width: 100%; height: 160px; }
            .hero-badges span { font-size: 0.8rem; padding: 4px 12px; }
        }

        /* ===== Utility ===== */
        .bg-white { background: var(--bg-white); }
        .bg-light { background: var(--bg-light); }
        .bg-primary { background: var(--primary); color: var(--text-white); }
        .gap-8 { gap: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-32 { margin-bottom: 32px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { display: flex; flex-wrap: wrap; }
        .w-full { width: 100%; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --primary-light: #e8f0fe;
            --accent: #f5a623;
            --accent-dark: #d4891a;
            --bg-white: #ffffff;
            --bg-light: #f8f9fc;
            --bg-dark: #0d1b2a;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-muted: #7a7a9a;
            --text-white: #ffffff;
            --border-color: #e2e5f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-white);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            transition: var(--transition);
        }
        .nav-list a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--primary) !important;
            color: var(--text-white) !important;
            padding: 10px 28px !important;
            border-radius: var(--radius-md) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 14px rgba(26, 115, 232, 0.35);
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(26, 115, 232, 0.45);
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
        }
        .search-box input {
            background: transparent;
            padding: 8px 10px;
            font-size: 0.9rem;
            color: var(--text-dark);
            width: 160px;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 0.95rem;
            cursor: pointer;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            background: none;
            cursor: pointer;
            padding: 4px 8px;
        }

        /* ===== Hero Banner ===== */
        .category-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.85), rgba(26, 115, 232, 0.75)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 80px 24px 60px;
            margin-top: 0;
        }
        .category-hero .hero-content {
            max-width: 780px;
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-white);
            font-weight: 500;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: var(--text-white);
            padding: 14px 36px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 6px 24px rgba(26, 115, 232, 0.4);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 35px rgba(26, 115, 232, 0.5);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-white);
            padding: 14px 36px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--bg-light);
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-wrap .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb-wrap a {
            color: var(--primary);
        }
        .breadcrumb-wrap a:hover {
            text-decoration: underline;
        }
        .breadcrumb-wrap span {
            color: var(--text-body);
        }
        .breadcrumb-wrap .sep {
            color: var(--text-muted);
        }

        /* ===== Section Base ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-header .subtitle-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ===== Guide Cards Grid ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .guide-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-light);
        }
        .guide-card .card-body {
            padding: 24px 22px 26px;
            flex: 1;
        }
        .guide-card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .guide-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }
        .guide-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .guide-card .card-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
        }
        .guide-card .card-link i {
            font-size: 0.75rem;
            transition: var(--transition);
        }
        .guide-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Steps / Process ===== */
        .steps-section {
            background: var(--bg-light);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1;
            opacity: 0.6;
        }
        .step-item .step-icon {
            width: 60px;
            height: 60px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--primary);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Faq Section ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark), #1a2a4a), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 80px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-primary {
            background: var(--accent);
            box-shadow: 0 6px 24px rgba(245, 166, 35, 0.4);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-dark);
            box-shadow: 0 10px 35px rgba(245, 166, 35, 0.5);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .site-footer .brand-col .logo-footer {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .site-footer .brand-col .logo-footer i {
            color: var(--primary);
        }
        .site-footer .brand-col p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }
        .site-footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--text-white);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border-color);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list a.active::after {
                display: none;
            }
            .search-box {
                display: none;
            }
            .nav-cta {
                text-align: center;
                margin-top: 6px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }

            .guide-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }

            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero {
                min-height: 280px;
                padding: 60px 16px 40px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .step-item {
                padding: 24px 18px;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.88rem;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f3b5e;
            --primary-light: #1a6b9a;
            --primary-dark: #0a263a;
            --accent: #e8a838;
            --accent-light: #f0c06a;
            --accent-dark: #c48a1e;
            --bg-body: #f5f7fa;
            --bg-card: #ffffff;
            --bg-dark: #0f3b5e;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-light: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f0f2f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(15, 59, 94, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 59, 94, 0.10);
            --shadow-lg: 0 12px 40px rgba(15, 59, 94, 0.14);
            --shadow-accent: 0 4px 20px rgba(232, 168, 56, 0.30);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .text-center { text-align: center; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 32px; border-radius: 50px;
            font-size: 0.95rem; font-weight: 600;
            border: none; cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent); color: var(--text-light);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark); color: var(--text-light);
            transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232,168,56,0.40);
        }
        .btn-primary:focus { outline: 3px solid rgba(232,168,56,0.40); outline-offset: 2px; }
        .btn-outline {
            background: transparent; color: var(--text-light);
            border: 2px solid rgba(255,255,255,0.6);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.12); color: var(--text-light);
            border-color: var(--text-light); transform: translateY(-2px);
        }
        .btn-outline:focus { outline: 3px solid rgba(255,255,255,0.30); outline-offset: 2px; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }

        /* ===== 徽章/标签 ===== */
        .badge {
            display: inline-block; padding: 4px 14px;
            border-radius: 50px; font-size: 0.78rem; font-weight: 600;
            background: rgba(15, 59, 94, 0.08); color: var(--primary);
        }
        .badge-accent { background: rgba(232, 168, 56, 0.15); color: var(--accent-dark); }
        .badge-light { background: rgba(255,255,255,0.20); color: var(--text-light); }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0;
            height: var(--header-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15,59,94,0.04);
        }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex; align-items: center; justify-content: space-between;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.35rem; font-weight: 800;
            color: var(--primary); text-decoration: none;
            letter-spacing: -0.3px;
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo:hover { color: var(--primary); }
        .nav-list { display: flex; align-items: center; gap: 6px; }
        .nav-list a {
            padding: 8px 18px; border-radius: 50px;
            font-size: 0.92rem; font-weight: 500;
            color: var(--text-secondary); text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover { background: rgba(15,59,94,0.06); color: var(--primary); }
        .nav-list a.active { background: var(--primary); color: var(--text-light); font-weight: 600; }
        .nav-actions { display: flex; align-items: center; gap: 16px; }
        .nav-search {
            display: flex; align-items: center;
            background: var(--bg-body); border-radius: 50px;
            padding: 0 16px; border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .nav-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,168,56,0.15); }
        .nav-search input {
            border: none; background: transparent;
            padding: 8px 0; font-size: 0.88rem;
            width: 140px; outline: none;
            color: var(--text-primary);
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .nav-search i { color: var(--text-muted); font-size: 0.9rem; }
        .nav-cta .btn { padding: 9px 24px; font-size: 0.88rem; }

        /* 移动端汉堡 */
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
        .hamburger span { display: block; width: 26px; height: 2.5px; background: var(--primary); border-radius: 4px; transition: var(--transition); }

        /* ===== 文章Banner ===== */
        .article-banner {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex; align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .article-banner::after {
            content: '';
            position: absolute; inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232,168,56,0.10) 0%, transparent 70%);
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .badge { margin-bottom: 16px; }
        .article-banner h1 {
            font-size: 2.6rem; color: var(--text-light);
            max-width: 860px; line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.15);
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 20px 32px;
            margin-top: 20px; align-items: center;
        }
        .article-meta span {
            font-size: 0.90rem; color: rgba(255,255,255,0.75);
            display: flex; align-items: center; gap: 8px;
        }
        .article-meta i { color: var(--accent); font-size: 0.85rem; }

        /* ===== 文章正文 ===== */
        .article-body-wrap {
            padding: 48px 0 64px;
            background: var(--bg-body);
        }
        .article-layout {
            display: grid; grid-template-columns: 1fr 300px;
            gap: 48px; align-items: start;
        }
        .article-main {
            background: var(--bg-card); border-radius: var(--radius-lg);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .breadcrumb {
            display: flex; flex-wrap: wrap; gap: 8px;
            font-size: 0.85rem; color: var(--text-muted);
            margin-bottom: 28px; padding-bottom: 20px;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb span { color: var(--text-secondary); }
        .article-content-body {
            font-size: 1.05rem; line-height: 1.9;
            color: var(--text-primary);
        }
        .article-content-body p { margin-bottom: 1.4em; }
        .article-content-body h2, .article-content-body h3 {
            margin-top: 1.6em; margin-bottom: 0.6em;
            color: var(--primary);
        }
        .article-content-body h2 { font-size: 1.6rem; }
        .article-content-body h3 { font-size: 1.25rem; }
        .article-content-body ul, .article-content-body ol {
            margin-bottom: 1.4em; padding-left: 1.6em;
        }
        .article-content-body ul { list-style: disc; }
        .article-content-body ol { list-style: decimal; }
        .article-content-body li { margin-bottom: 0.4em; }
        .article-content-body img { border-radius: var(--radius-md); margin: 1.2em 0; box-shadow: var(--shadow-sm); }
        .article-content-body a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 2px; }
        .article-content-body a:hover { color: var(--accent); }
        .article-content-body blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(232,168,56,0.06);
            padding: 16px 24px; margin: 1.4em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-not-found {
            text-align: center; padding: 60px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; display: block; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text-secondary); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; font-size: 1.05rem; }
        .article-not-found .btn { padding: 10px 28px; }

        /* 侧栏 */
        .article-sidebar {
            display: flex; flex-direction: column; gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card); border-radius: var(--radius-md);
            padding: 28px; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .sidebar-card h4 {
            font-size: 1.05rem; font-weight: 700;
            margin-bottom: 18px; padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: flex; align-items: center; gap: 10px;
        }
        .sidebar-card h4 i { color: var(--accent); }
        .sidebar-list li { margin-bottom: 14px; }
        .sidebar-list a {
            display: flex; align-items: center; gap: 10px;
            font-size: 0.92rem; color: var(--text-secondary);
            padding: 6px 0; border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list a:hover { color: var(--primary); padding-left: 6px; }
        .sidebar-list i { font-size: 0.7rem; color: var(--accent); }

        /* ===== 推荐阅读 ===== */
        .related-section {
            padding: 64px 0 48px;
            background: var(--bg-body);
        }
        .related-section .section-title {
            text-align: center; font-size: 1.8rem; font-weight: 800;
            color: var(--primary); margin-bottom: 8px;
        }
        .related-section .section-sub {
            text-align: center; color: var(--text-muted); font-size: 1rem;
            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-md);
            overflow: hidden; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex; flex-direction: column;
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
        .related-card .card-img {
            height: 180px; overflow: hidden;
            background: var(--border-light);
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; }
        .related-card .card-body .badge { align-self: flex-start; margin-bottom: 10px; }
        .related-card .card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
        .related-card .card-body h3 a { color: var(--text-primary); }
        .related-card .card-body h3 a:hover { color: var(--primary-light); }
        .related-card .card-body p { font-size: 0.90rem; color: var(--text-secondary); flex: 1; margin-bottom: 14px; }
        .related-card .card-body .read-more {
            font-size: 0.85rem; font-weight: 600; color: var(--primary-light);
            display: flex; align-items: center; gap: 6px;
            margin-top: auto;
        }
        .related-card .card-body .read-more:hover { color: var(--accent); gap: 10px; }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { font-size: 2.2rem; color: var(--text-light); font-weight: 800; margin-bottom: 12px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto 32px; }
        .cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark); color: rgba(255,255,255,0.75);
            padding: 60px 0 0;
        }
        .site-footer .container {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px; padding-bottom: 40px;
        }
        .site-footer .brand-col p { font-size: 0.90rem; line-height: 1.7; margin: 16px 0; color: rgba(255,255,255,0.55); }
        .site-footer h4 { font-size: 1rem; font-weight: 700; color: var(--text-light); margin-bottom: 18px; }
        .site-footer ul li { margin-bottom: 10px; }
        .site-footer ul a {
            font-size: 0.88rem; color: rgba(255,255,255,0.55);
            transition: var(--transition); display: flex; align-items: center; gap: 8px;
        }
        .site-footer ul a:hover { color: var(--accent); padding-left: 4px; }
        .site-footer ul a i { width: 18px; }
        .logo-footer {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.3rem; font-weight: 800;
            color: var(--text-light);
        }
        .logo-footer i { color: var(--accent); font-size: 1.5rem; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0; text-align: center;
        }
        .footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.35); margin: 0; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .container { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .hamburger { display: flex; }
            .nav-list {
                position: fixed; top: var(--header-height); left: 0; right: 0;
                background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
                flex-direction: column; padding: 16px 24px;
                box-shadow: var(--shadow-md);
                transform: translateY(-120%); opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-color);
                pointer-events: none;
                gap: 4px;
            }
            .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-list a { padding: 12px 20px; width: 100%; border-radius: var(--radius-sm); }
            .nav-actions { gap: 10px; }
            .nav-search input { width: 90px; }
            .nav-search { padding: 0 10px; }
            .nav-cta .btn { padding: 8px 16px; font-size: 0.82rem; }

            .article-banner { padding: 110px 0 50px; min-height: 260px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-meta { gap: 12px 20px; }
            .article-meta span { font-size: 0.82rem; }

            .article-main { padding: 24px 20px; }
            .article-content-body { font-size: 1rem; }

            .article-sidebar { grid-template-columns: 1fr; }

            .related-grid { grid-template-columns: 1fr; }
            .related-section { padding: 40px 0 32px; }
            .related-section .section-title { font-size: 1.5rem; }

            .cta-section { padding: 56px 0; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section p { font-size: 1rem; }
            .cta-btns { flex-direction: column; align-items: center; }

            .site-footer .container { grid-template-columns: 1fr; gap: 32px; }
            .site-footer { padding: 40px 0 0; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .header-inner { padding: 0 16px; }
            .article-banner h1 { font-size: 1.5rem; }
            .article-main { padding: 18px 14px; border-radius: var(--radius-md); }
            .breadcrumb { font-size: 0.78rem; flex-wrap: wrap; }
            .article-meta { flex-direction: column; gap: 8px; align-items: flex-start; }
            .nav-search { display: none; }
            .nav-cta .btn { padding: 6px 14px; font-size: 0.78rem; }
            .logo { font-size: 1.1rem; }
            .logo i { font-size: 1.3rem; }
            .sidebar-card { padding: 20px; }
            .related-card .card-body { padding: 16px 18px; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-section p { font-size: 0.90rem; }
        }

        /* ===== 工具类 ===== */
        .flex-wrap { display: flex; flex-wrap: wrap; align-items: center; }
        .gap-12 { gap: 12px; }
        .mt-20 { margin-top: 20px; }
        .mb-20 { margin-bottom: 20px; }