/* roulang page: index */
:root {
            --brand-600: #2563eb;
            --brand-700: #1d4ed8;
            --brand-800: #1e40af;
            --accent-500: #06b6d4;
            --surface-light: #f8fafc;
            --surface-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border-light: #e2e8f0;
            --border-subtle: #f1f5f9;
            --radius-xl: 0.75rem;
            --radius-2xl: 1rem;
            --radius-3xl: 1.25rem;
            --radius-4xl: 1.5rem;
            --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.04), 0 1px 2px -1px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);
            --shadow-card-hover: 0 10px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04), 0 0 0 1px rgba(0,0,0,0.04);
            --transition-base: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 250ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background-color: #fafbfc;
            overflow-x: hidden;
        }

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

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

        button, input {
            font-family: inherit;
        }

        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid #3b82f6;
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 1200px) {
            .container-custom {
                max-width: 960px;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 2px 0 rgba(0,0,0,0.03);
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px 0 rgba(0,0,0,0.06), 0 1px 3px 0 rgba(0,0,0,0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-base);
        }

        .logo-link:hover {
            opacity: 0.82;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-xl);
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 60%, #1e40af 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(37,99,235,0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-xl);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--brand-600);
            background: #eff6ff;
        }

        .nav-links li a.nav-active {
            color: var(--brand-600);
            background: #eff6ff;
            font-weight: 600;
        }

        .nav-links li a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 2px;
            background: var(--brand-600);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border: 1px solid transparent;
            border-radius: 2rem;
            padding: 0.4rem 0.9rem;
            gap: 0.4rem;
            transition: all var(--transition-base);
            cursor: text;
        }

        .search-box:hover {
            background: #e2e8f0;
        }

        .search-box:focus-within {
            background: #fff;
            border-color: var(--brand-600);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
        }

        .search-box i {
            color: #94a3b8;
            font-size: 0.85rem;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.875rem;
            color: var(--text-primary);
            width: 130px;
            min-width: 100px;
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

        .btn-cta-nav {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.5rem 1.1rem;
            border-radius: 2rem;
            font-size: 0.875rem;
            font-weight: 600;
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: #fff;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 2px 8px rgba(37,99,235,0.28);
        }

        .btn-cta-nav:hover {
            box-shadow: 0 4px 16px rgba(37,99,235,0.4);
            transform: translateY(-1px);
            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
        }

        .btn-cta-nav:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(37,99,235,0.25);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 0.4rem;
            border-radius: 0.5rem;
            transition: background var(--transition-base);
        }

        .mobile-menu-btn:hover {
            background: #f1f5f9;
        }

        @media (max-width: 920px) {
            .nav-links {
                display: none;
            }
            .search-box {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .header-inner {
                height: 56px;
            }
            .logo-link {
                font-size: 1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: #fff;
            z-index: 200;
            padding: 1.5rem;
            flex-direction: column;
            gap: 1rem;
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel .close-btn {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-primary);
            padding: 0.5rem;
            border-radius: 0.5rem;
        }

        .mobile-nav-panel .close-btn:hover {
            background: #f1f5f9;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 0.8rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-xl);
            transition: all var(--transition-base);
        }

        .mobile-nav-panel a:hover {
            background: #eff6ff;
            color: var(--brand-600);
        }

        .mobile-nav-panel a.nav-active {
            background: #eff6ff;
            color: var(--brand-600);
            font-weight: 600;
        }

        /* ===== Hero 区域 ===== */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #0f172a 0%, #172554 35%, #1e3a8a 70%, #1e40af 100%);
            padding: 5rem 0 6rem;
            overflow: hidden;
            min-height: 540px;
            display: flex;
            align-items: center;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.22;
            pointer-events: none;
            mix-blend-mode: overlay;
        }

        .hero-glow-1 {
            position: absolute;
            top: -80px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(59,130,246,0.28) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-glow-2 {
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(6,182,212,0.22) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 2rem;
            padding: 0.35rem 0.9rem;
            font-size: 0.8rem;
            font-weight: 500;
            color: #bfdbfe;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(8px);
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #22d3ee;
            animation: pulse-slow 3s cubic-bezier(0.4,0,0.6,1) infinite;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin: 0 0 1rem;
            letter-spacing: -0.02em;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #60a5fa 0%, #22d3ee 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin: 0 0 2rem;
            max-width: 540px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.6rem;
            border-radius: 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            background: #fff;
            color: #1e3a8a;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(0,0,0,0.2);
            white-space: nowrap;
        }

        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0,0,0,0.3);
            background: #f0f4ff;
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.6rem;
            border-radius: 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.35);
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-hero-secondary:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.55);
            transform: translateY(-2px);
        }

        .hero-stats-row {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: #94a3b8;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 3rem 0 3.5rem;
                min-height: auto;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-stats-row {
                gap: 1.5rem;
            }
            .hero-stat-value {
                font-size: 1.4rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                padding: 0.6rem 1.2rem;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.875rem;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 0.6rem;
            }
            .hero-stats-row {
                gap: 1rem;
                flex-direction: column;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 4.5rem 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 2.8rem 0;
            }
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: #2563eb;
            background: #eff6ff;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 0.6rem;
            letter-spacing: -0.015em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: #64748b;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .section-header {
                margin-bottom: 2rem;
            }
        }

        /* ===== 特性卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        @media (max-width: 920px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-3xl);
            padding: 2rem 1.6rem;
            border: 1px solid #e8ecf1;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #d0d8e3;
        }

        .feature-card .fc-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-2xl);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .fc-icon-blue {
            background: #eff6ff;
            color: #2563eb;
        }

        .fc-icon-cyan {
            background: #ecfeff;
            color: #0891b2;
        }

        .fc-icon-green {
            background: #f0fdf4;
            color: #16a34a;
        }

        .fc-icon-amber {
            background: #fffbeb;
            color: #d97706;
        }

        .fc-icon-indigo {
            background: #eef2ff;
            color: #4f46e5;
        }

        .fc-icon-rose {
            background: #fff1f2;
            color: #e11d48;
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            color: #0f172a;
            margin: 0;
            letter-spacing: -0.01em;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: #64748b;
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 分类入口卡片 ===== */
        .category-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        @media (max-width: 768px) {
            .category-cards {
                grid-template-columns: 1fr;
            }
        }

        .cat-card {
            position: relative;
            border-radius: var(--radius-4xl);
            overflow: hidden;
            background: #fff;
            border: 1px solid #e8ecf1;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: block;
            text-decoration: none;
            color: inherit;
        }

        .cat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }

        .cat-card-img-wrap {
            position: relative;
            width: 100%;
            height: 200px;
            overflow: hidden;
        }

        .cat-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .cat-card:hover .cat-card-img-wrap img {
            transform: scale(1.04);
        }

        .cat-card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15,23,42,0.7) 100%);
        }

        .cat-card-body {
            padding: 1.4rem 1.5rem 1.8rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .cat-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0;
        }

        .cat-card-body p {
            font-size: 0.9rem;
            color: #64748b;
            margin: 0;
            line-height: 1.55;
        }

        .cat-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: #2563eb;
            margin-top: 0.3rem;
            transition: gap var(--transition-base);
        }

        .cat-card:hover .cat-card-arrow {
            gap: 0.55rem;
        }

        /* ===== 最新信息列表 ===== */
        .info-list-panel {
            background: #fff;
            border-radius: var(--radius-4xl);
            border: 1px solid #e8ecf1;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .info-list-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            padding: 1.1rem 1.5rem;
            border-bottom: 1px solid #f1f5f9;
            transition: background var(--transition-base);
            text-decoration: none;
            color: inherit;
        }

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

        .info-list-item:hover {
            background: #fafbfc;
        }

        .info-list-thumb {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-xl);
            object-fit: cover;
            flex-shrink: 0;
            background: #f1f5f9;
        }

        .info-list-content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .info-list-content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #0f172a;
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .info-list-content .info-list-desc {
            font-size: 0.82rem;
            color: #64748b;
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 400px;
        }

        .info-list-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.78rem;
            color: #94a3b8;
            flex-shrink: 0;
        }

        .info-list-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 1rem;
            background: #eff6ff;
            color: #2563eb;
            flex-shrink: 0;
        }

        .info-list-empty {
            padding: 3rem 1.5rem;
            text-align: center;
            color: #94a3b8;
            font-size: 0.95rem;
        }

        @media (max-width: 768px) {
            .info-list-item {
                flex-wrap: wrap;
                gap: 0.8rem;
                padding: 1rem;
            }
            .info-list-thumb {
                width: 44px;
                height: 44px;
            }
            .info-list-content h4 {
                font-size: 0.875rem;
            }
            .info-list-meta {
                width: 100%;
                justify-content: flex-start;
                padding-left: calc(44px + 0.8rem);
            }
        }

        /* ===== 数据仪表盘板块 ===== */
        .stats-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        @media (max-width: 920px) {
            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
        }

        .stat-card-dash {
            background: #fff;
            border-radius: var(--radius-3xl);
            padding: 1.5rem;
            border: 1px solid #e8ecf1;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition-smooth);
        }

        .stat-card-dash:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .stat-card-dash .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0f172a;
            letter-spacing: -0.02em;
            font-family: 'JetBrains Mono', 'Fira Code', monospace;
        }

        .stat-card-dash .stat-num.accent-blue {
            color: #2563eb;
        }

        .stat-card-dash .stat-num.accent-cyan {
            color: #0891b2;
        }

        .stat-card-dash .stat-num.accent-green {
            color: #16a34a;
        }

        .stat-card-dash .stat-num.accent-amber {
            color: #d97706;
        }

        .stat-card-dash .stat-label {
            font-size: 0.82rem;
            color: #64748b;
            margin-top: 0.3rem;
            font-weight: 500;
        }

        .stat-card-dash .stat-indicator {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 0.4rem;
            padding: 0.15rem 0.5rem;
            border-radius: 1rem;
        }

        .stat-indicator.up {
            background: #f0fdf4;
            color: #16a34a;
        }

        .stat-indicator.stable {
            background: #eff6ff;
            color: #2563eb;
        }

        /* ===== 流程步骤 ===== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        @media (max-width: 768px) {
            .steps-row {
                grid-template-columns: 1fr;
            }
        }

        .step-card {
            background: #fff;
            border-radius: var(--radius-3xl);
            padding: 2rem 1.5rem;
            border: 1px solid #e8ecf1;
            box-shadow: var(--shadow-card);
            text-align: center;
            position: relative;
            transition: all var(--transition-smooth);
        }

        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 12px rgba(37,99,235,0.3);
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 650;
            color: #0f172a;
            margin: 0 0 0.5rem;
        }

        .step-card p {
            font-size: 0.875rem;
            color: #64748b;
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ 板块 ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-2xl);
            border: 1px solid #e8ecf1;
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .faq-item:hover {
            border-color: #d0d8e3;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 1.2rem 1.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #0f172a;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            text-align: left;
            transition: color var(--transition-base);
            font-family: inherit;
        }

        .faq-question:hover {
            color: #2563eb;
        }

        .faq-question i {
            transition: transform var(--transition-smooth);
            color: #94a3b8;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: #2563eb;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.9rem;
            color: #475569;
            line-height: 1.7;
        }

        /* ===== CTA 板块 ===== */
        .cta-section {
            background: linear-gradient(160deg, #0f172a 0%, #172554 40%, #1e3a8a 100%);
            border-radius: var(--radius-4xl);
            padding: 3.5rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-glow {
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(59,130,246,0.3) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.8rem;
            letter-spacing: -0.015em;
        }

        .cta-content p {
            font-size: 1rem;
            color: #cbd5e1;
            max-width: 500px;
            margin: 0 auto 1.8rem;
            line-height: 1.6;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            border-radius: 2rem;
            font-size: 1rem;
            font-weight: 600;
            background: #fff;
            color: #1e3a8a;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 6px 20px rgba(0,0,0,0.25);
            white-space: nowrap;
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.35);
            background: #f0f4ff;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 2.5rem 1.5rem;
                border-radius: var(--radius-3xl);
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .cta-content p {
                font-size: 0.9rem;
            }
            .btn-cta-large {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 3rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: space-between;
        }

        .footer-brand {
            max-width: 300px;
        }

        .footer-brand .footer-logo {
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 0.6rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
            margin: 0;
        }

        .footer-links-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 0.8rem;
            letter-spacing: 0.01em;
        }

        .footer-links-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-links-col ul li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-links-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1rem;
            font-size: 0.8rem;
            color: #64748b;
        }

        @media (max-width: 768px) {
            .footer-inner {
                flex-direction: column;
                gap: 1.5rem;
            }
            .footer-brand {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
            }
        }

        /* ===== 辅助工具类 ===== */
        .bg-surface {
            background: #f8fafc;
        }

        .bg-white-block {
            background: #fff;
        }

        .text-gradient {
            background: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: article */
:root {
            --brand-600: #2563eb;
            --brand-700: #1d4ed8;
            --brand-800: #1e40af;
            --accent-500: #f59e0b;
            --surface-50: #f8fafc;
            --surface-100: #f1f5f9;
            --surface-200: #e2e8f0;
            --surface-700: #334155;
            --surface-800: #1e293b;
            --surface-900: #0f172a;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-card: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04);
            --shadow-elevated: 0 4px 12px rgba(0,0,0,.08), 0 8px 32px rgba(0,0,0,.06);
            --shadow-glow: 0 0 0 1px rgba(37,99,235,.08), 0 8px 28px rgba(37,99,235,.12);
        }
        * { box-sizing: border-box; }
        body { font-family: 'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif; line-height:1.7; color:#1e293b; background:#f8fafc; -webkit-font-smoothing:antialiased; margin:0; padding:0; }
        a { color:inherit; text-decoration:none; transition:color .2s; }
        img { max-width:100%; height:auto; display:block; }
        button { cursor:pointer; font-family:inherit; }
        .site-header { position:sticky; top:0; z-index:100; background:#fff; border-bottom:1px solid #e2e8f0; box-shadow:0 1px 4px rgba(0,0,0,.04); }
        .header-inner { max-width:1280px; margin:0 auto; padding:0 24px; display:flex; align-items:center; justify-content:space-between; height:64px; gap:24px; }
        .header-logo { display:flex; align-items:center; gap:9px; font-weight:700; font-size:1.2rem; color:#1e293b; white-space:nowrap; letter-spacing:-0.01em; }
        .header-logo i { font-size:1.35rem; color:#2563eb; }
        .nav-links { display:flex; list-style:none; gap:6px; margin:0; padding:0; align-items:center; }
        .nav-links a { display:inline-flex; align-items:center; padding:8px 16px; border-radius:8px; font-size:.925rem; font-weight:500; color:#475569; transition:all .2s; white-space:nowrap; }
        .nav-links a:hover { color:#2563eb; background:#eff6ff; }
        .nav-links a.nav-active { color:#2563eb; background:#dbeafe; font-weight:600; }
        .header-search { position:relative; display:flex; align-items:center; }
        .header-search input { width:200px; height:40px; padding:0 40px 0 16px; border:1px solid #e2e8f0; border-radius:20px; font-size:.875rem; background:#f8fafc; color:#334155; outline:none; transition:all .25s; }
        .header-search input:focus { border-color:#2563eb; box-shadow:0 0 0 3px rgba(37,99,235,.08); background:#fff; width:240px; }
        .header-search button { position:absolute; right:4px; top:50%; transform:translateY(-50%); width:32px; height:32px; border-radius:50%; border:none; background:transparent; color:#94a3b8; display:flex; align-items:center; justify-content:center; transition:color .2s; }
        .header-search button:hover { color:#2563eb; }
        .header-cta { display:inline-flex; align-items:center; gap:6px; padding:10px 20px; background:#2563eb; color:#fff; border-radius:22px; font-weight:600; font-size:.875rem; border:none; transition:all .25s; white-space:nowrap; box-shadow:0 2px 8px rgba(37,99,235,.25); }
        .header-cta:hover { background:#1d4ed8; box-shadow:0 4px 16px rgba(37,99,235,.35); transform:translateY(-1px); }
        .mobile-menu-btn { display:none; background:none; border:none; font-size:1.5rem; color:#334155; padding:6px; }
        .article-banner { position:relative; background:linear-gradient(135deg,#1e3a8a 0%,#1e40af 40%,#2563eb 100%); min-height:260px; display:flex; align-items:center; overflow:hidden; }
        .article-banner::before { content:''; position:absolute; inset:0; background:url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity:.18; }
        .article-banner-inner { position:relative; z-index:2; max-width:1280px; margin:0 auto; padding:40px 24px; width:100%; }
        .breadcrumb { display:flex; flex-wrap:wrap; gap:6px; align-items:center; font-size:.825rem; color:rgba(255,255,255,.7); margin-bottom:16px; }
        .breadcrumb a { color:rgba(255,255,255,.85); transition:color .2s; }
        .breadcrumb a:hover { color:#fff; }
        .breadcrumb .sep { color:rgba(255,255,255,.4); }
        .article-banner-title { font-size:2rem; font-weight:700; color:#fff; line-height:1.35; letter-spacing:-0.01em; max-width:800px; text-shadow:0 2px 8px rgba(0,0,0,.2); }
        .article-meta-row { display:flex; flex-wrap:wrap; gap:16px; align-items:center; margin-top:14px; font-size:.85rem; color:rgba(255,255,255,.75); }
        .article-meta-row .meta-tag { display:inline-flex; align-items:center; gap:5px; background:rgba(255,255,255,.15); padding:5px 12px; border-radius:20px; font-weight:500; backdrop-filter:blur(4px); }
        .main-container { max-width:1280px; margin:0 auto; padding:0 24px; }
        .article-layout { display:grid; grid-template-columns:1fr 340px; gap:36px; padding:40px 0 52px; align-items:start; }
        .article-content-card { background:#fff; border-radius:var(--radius-lg); padding:40px; box-shadow:var(--shadow-card); border:1px solid #e2e8f0; }
        .article-content-card h2 { font-size:1.5rem; font-weight:700; color:#1e293b; margin:28px 0 12px; line-height:1.4; }
        .article-content-card h3 { font-size:1.2rem; font-weight:600; color:#334155; margin:22px 0 8px; }
        .article-content-card p { margin:0 0 16px; color:#475569; line-height:1.85; }
        .article-content-card ul,.article-content-card ol { margin:0 0 16px 20px; color:#475569; }
        .article-content-card li { margin-bottom:6px; }
        .article-content-card blockquote { border-left:3px solid #2563eb; margin:16px 0; padding:12px 20px; background:#f8fafc; border-radius:0 8px 8px 0; color:#475569; font-style:italic; }
        .article-content-card a { color:#2563eb; text-decoration:underline; }
        .article-content-card a:hover { color:#1d4ed8; }
        .article-content-card img { border-radius:10px; margin:16px 0; }
        .article-content-card table { width:100%; border-collapse:collapse; margin:16px 0; font-size:.9rem; }
        .article-content-card th { background:#f1f5f9; padding:10px 14px; text-align:left; font-weight:600; border:1px solid #e2e8f0; }
        .article-content-card td { padding:10px 14px; border:1px solid #e2e8f0; }
        .article-content-card code { background:#f1f5f9; padding:2px 8px; border-radius:4px; font-size:.875em; color:#1e40af; }
        .article-content-card pre { background:#1e293b; color:#e2e8f0; padding:20px; border-radius:10px; overflow-x:auto; margin:16px 0; font-size:.85rem; line-height:1.6; }
        .sidebar-card { background:#fff; border-radius:var(--radius-lg); padding:24px; box-shadow:var(--shadow-card); border:1px solid #e2e8f0; margin-bottom:20px; }
        .sidebar-card h4 { font-size:1rem; font-weight:700; color:#1e293b; margin:0 0 14px; display:flex; align-items:center; gap:8px; }
        .sidebar-card h4 i { color:#2563eb; font-size:.9rem; }
        .sidebar-toc-item { display:block; padding:8px 12px; border-radius:6px; font-size:.85rem; color:#475569; transition:all .2s; border-left:2px solid transparent; }
        .sidebar-toc-item:hover { background:#f8fafc; color:#2563eb; border-left-color:#2563eb; }
        .related-post-item { display:flex; gap:12px; padding:10px 0; border-bottom:1px solid #f1f5f9; align-items:flex-start; transition:all .2s; border-radius:6px; cursor:pointer; }
        .related-post-item:last-child { border-bottom:none; }
        .related-post-item:hover { background:#f8fafc; margin:0 -8px; padding:10px 8px; border-radius:8px; }
        .related-post-thumb { width:64px; height:48px; border-radius:6px; object-fit:cover; flex-shrink:0; background:#e2e8f0; }
        .related-post-info { flex:1; min-width:0; }
        .related-post-info .rp-title { font-size:.85rem; font-weight:600; color:#1e293b; line-height:1.35; display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden; }
        .related-post-info .rp-date { font-size:.75rem; color:#94a3b8; margin-top:3px; }
        .not-found-section { text-align:center; padding:80px 24px; }
        .not-found-section .nf-icon { font-size:4rem; color:#cbd5e1; margin-bottom:20px; }
        .not-found-section h2 { font-size:1.6rem; font-weight:700; color:#334155; margin-bottom:10px; }
        .not-found-section p { color:#64748b; margin-bottom:24px; }
        .site-footer { background:#1e293b; color:#cbd5e1; padding:48px 0 24px; margin-top:0; }
        .footer-inner { display:grid; grid-template-columns:2fr 1fr 1fr; gap:40px; }
        .footer-logo { font-size:1.15rem; font-weight:700; color:#fff; margin-bottom:10px; }
        .footer-brand p { font-size:.85rem; line-height:1.7; color:#94a3b8; margin:0; }
        .footer-links-col h4 { font-size:.95rem; font-weight:600; color:#e2e8f0; margin:0 0 12px; }
        .footer-links-col ul { list-style:none; padding:0; margin:0; }
        .footer-links-col li { margin-bottom:8px; }
        .footer-links-col a { color:#94a3b8; font-size:.85rem; transition:color .2s; }
        .footer-links-col a:hover { color:#fff; }
        .footer-bottom { border-top:1px solid #334155; margin-top:32px; padding-top:20px; display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; font-size:.78rem; color:#64748b; }
        @media (max-width:1024px) {
            .article-layout { grid-template-columns:1fr; }
            .sidebar-stack { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
            .sidebar-card { margin-bottom:0; }
        }
        @media (max-width:768px) {
            .header-inner { height:56px; padding:0 16px; gap:12px; }
            .nav-links { display:none; position:absolute; top:56px; left:0; right:0; background:#fff; flex-direction:column; padding:12px 16px; border-bottom:1px solid #e2e8f0; box-shadow:0 8px 24px rgba(0,0,0,.08); gap:4px; z-index:99; }
            .nav-links.open { display:flex; }
            .nav-links a { padding:10px 14px; width:100%; }
            .header-search { display:none; }
            .header-cta { font-size:.8rem; padding:8px 14px; }
            .mobile-menu-btn { display:block; }
            .article-banner { min-height:180px; }
            .article-banner-title { font-size:1.4rem; }
            .article-content-card { padding:24px 18px; }
            .sidebar-stack { grid-template-columns:1fr; }
            .footer-inner { grid-template-columns:1fr 1fr; gap:24px; }
            .footer-brand { grid-column:1/-1; }
        }
        @media (max-width:520px) {
            .article-banner-title { font-size:1.2rem; }
            .article-content-card { padding:18px 14px; border-radius:10px; }
            .article-content-card h2 { font-size:1.25rem; }
            .article-meta-row { gap:10px; font-size:.78rem; }
            .footer-inner { grid-template-columns:1fr; gap:20px; }
            .footer-bottom { flex-direction:column; text-align:center; }
            .header-cta { padding:7px 12px; font-size:.75rem; }
        }

/* roulang page: category1 */
:root {
            --color-brand: #2563eb;
            --color-brand-hover: #1d4ed8;
            --color-brand-light: #dbeafe;
            --color-accent: #10b981;
            --color-accent-soft: #d1fae5;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-bg: #ffffff;
            --color-bg-alt: #f8fafc;
            --color-bg-dark: #0f172a;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
            --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 10px -4px rgba(0,0,0,0.04);
            --shadow-xl: 0 20px 40px -5px rgba(0,0,0,0.1), 0 8px 16px -6px rgba(0,0,0,0.05);
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: '-apple-system', 'BlinkMacSystemFont', '"Segoe UI"', 'Roboto', '"Helvetica Neue"', 'Arial', '"Noto Sans SC"', 'sans-serif';
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

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

        button, input {
            font-family: inherit;
            font-size: inherit;
        }

        /* 导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 64px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-brand);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .header-logo i {
            font-size: 1.4rem;
            color: var(--color-brand);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-md);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--color-brand);
            background: var(--color-brand-light);
        }

        .nav-links li a.nav-active,
        .nav-links li a[aria-current="page"] {
            color: var(--color-brand);
            background: var(--color-brand-light);
            font-weight: 600;
        }

        .header-search-wrap {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: 2rem;
            padding: 0.5rem 1rem;
            transition: all var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--color-brand);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
        }

        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.875rem;
            color: var(--color-text);
            width: 140px;
            padding: 0;
        }

        .header-search input::placeholder {
            color: var(--color-text-muted);
        }

        .header-search button {
            background: none;
            border: none;
            color: var(--color-text-soft);
            cursor: pointer;
            padding: 0;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .header-search button:hover {
            color: var(--color-brand);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.25rem;
            background: var(--color-brand);
            color: #fff;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.875rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }

        .header-cta:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 0.5rem;
        }

        /* 主容器 */
        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* 板块通用 */
        .section {
            padding: 4rem 0;
        }

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

        .section-dark {
            background: var(--color-bg-dark);
            color: #e2e8f0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header .section-tag {
            display: inline-block;
            padding: 0.3rem 0.9rem;
            background: var(--color-brand-light);
            color: var(--color-brand);
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
        }

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 0.5rem 0;
            color: inherit;
            letter-spacing: -0.02em;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-soft);
            margin: 0;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-dark .section-header p {
            color: #94a3b8;
        }

        /* Banner */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1e40af 100%);
            padding: 5rem 0;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            pointer-events: none;
        }

        .category-banner .banner-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: #fff;
        }

        .category-banner .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 1rem;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 1.25rem;
            backdrop-filter: blur(8px);
        }

        .category-banner .banner-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.6); }
            50% { box-shadow: 0 0 0 10px rgba(16,185,129,0); }
        }

        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin: 0 0 1rem 0;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }

        .category-banner p {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 600px;
            margin: 0 auto 0.5rem;
        }

        /* 地址卡片 */
        .address-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            position: relative;
            overflow: hidden;
        }

        .address-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }

        .address-card .card-top {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }

        .address-card .card-img {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

        .address-card .card-info {
            flex: 1;
            min-width: 0;
        }

        .address-card .card-title {
            font-weight: 700;
            font-size: 1.05rem;
            margin: 0 0 0.3rem 0;
            color: var(--color-text);
        }

        .address-card .card-url {
            font-family: 'SF Mono', 'Fira Code', 'Roboto Mono', monospace;
            font-size: 0.8rem;
            color: var(--color-text-soft);
            background: var(--color-bg-alt);
            padding: 0.35rem 0.65rem;
            border-radius: 0.35rem;
            word-break: break-all;
            display: block;
            margin: 0.3rem 0;
            border: 1px solid var(--color-border-light);
        }

        .address-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.25rem 0.65rem;
            border-radius: 2rem;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .badge-online {
            background: #d1fae5;
            color: #065f46;
        }

        .badge-standby {
            background: #fef3c7;
            color: #92400e;
        }

        .badge-recommend {
            background: #dbeafe;
            color: #1e40af;
        }

        .badge-speed {
            background: #ede9fe;
            color: #5b21b6;
        }

        .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            display: inline-block;
        }

        .status-dot.online {
            background: #10b981;
            box-shadow: 0 0 6px rgba(16,185,129,0.4);
        }

        .status-dot.standby {
            background: #f59e0b;
            box-shadow: 0 0 6px rgba(245,158,11,0.4);
        }

        .card-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.45rem 1rem;
            background: var(--color-brand);
            color: #fff;
            border-radius: 2rem;
            font-size: 0.825rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
            text-align: center;
            justify-content: center;
            white-space: nowrap;
        }

        .card-action-btn:hover {
            background: var(--color-brand-hover);
            box-shadow: var(--shadow-md);
        }

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

        .card-action-btn.outline:hover {
            background: var(--color-brand-light);
        }

        /* 状态面板 */
        .status-panel {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            overflow: hidden;
        }

        .status-panel .panel-header {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--color-border);
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .status-panel .panel-body {
            padding: 1.25rem 1.5rem;
        }

        .status-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.65rem 0;
            border-bottom: 1px solid var(--color-border-light);
            gap: 1rem;
        }

        .status-row:last-child {
            border-bottom: none;
        }

        .status-row .status-label {
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--color-text);
        }

        .status-row .status-value {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            text-align: right;
        }

        .status-row .status-value.good {
            color: #059669;
            font-weight: 600;
        }

        /* 提示卡片 */
        .tip-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            transition: all var(--transition-base);
        }

        .tip-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #cbd5e1;
        }

        .tip-card .tip-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .tip-icon.blue {
            background: #dbeafe;
            color: #2563eb;
        }

        .tip-icon.green {
            background: #d1fae5;
            color: #059669;
        }

        .tip-icon.amber {
            background: #fef3c7;
            color: #d97706;
        }

        .tip-icon.purple {
            background: #ede9fe;
            color: #7c3aed;
        }

        .tip-card .tip-body h4 {
            margin: 0 0 0.3rem 0;
            font-size: 0.95rem;
            font-weight: 600;
        }

        .tip-card .tip-body p {
            margin: 0;
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
        }

        .faq-item .faq-question {
            padding: 1.15rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            user-select: none;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--color-text);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.15rem;
            font-size: 0.875rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item .faq-icon {
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--color-text-soft);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-brand);
        }

        /* CTA 区域 */
        .cta-section {
            background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
            padding: 4rem 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 0.75rem 0;
        }

        .cta-section p {
            font-size: 1rem;
            color: #bfdbfe;
            max-width: 500px;
            margin: 0 auto 1.5rem;
        }

        .cta-btn-large {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            background: #fff;
            color: #1e40af;
            border-radius: 2.5rem;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .cta-btn-large:hover {
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            transform: translateY(-2px);
        }

        /* 公告横幅 */
        .announcement-bar {
            background: #fffbeb;
            border-bottom: 1px solid #fde68a;
            padding: 0.65rem 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #92400e;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .announcement-bar i {
            color: #f59e0b;
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-bg-dark);
            color: #cbd5e1;
            padding: 3.5rem 0 1.5rem;
            font-size: 0.875rem;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            color: #94a3b8;
            line-height: 1.6;
            margin: 0;
        }

        .footer-links-col h4 {
            font-weight: 600;
            font-size: 0.9rem;
            color: #e2e8f0;
            margin: 0 0 0.75rem 0;
            letter-spacing: 0.01em;
        }

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

        .footer-links-col ul li {
            margin-bottom: 0.4rem;
        }

        .footer-links-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-links-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: space-between;
            color: #64748b;
            font-size: 0.8rem;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .header-search input {
                width: 100px;
            }
            .nav-links li a {
                padding: 0.45rem 0.7rem;
                font-size: 0.85rem;
            }
            .header-logo {
                font-size: 1.05rem;
            }
            .category-banner h1 {
                font-size: 2.1rem;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                padding: 0 1rem;
            }
            .header-search,
            .header-cta {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 1rem;
                gap: 0.35rem;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 40;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 0.75rem 1rem;
                font-size: 0.9rem;
            }
            .mobile-menu-btn {
                display: block;
            }
            .header-logo {
                font-size: 1rem;
            }
            .category-banner {
                padding: 3rem 0;
            }
            .category-banner h1 {
                font-size: 1.7rem;
            }
            .category-banner p {
                font-size: 0.95rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }
            .address-card {
                padding: 1.15rem;
            }
            .container-custom {
                padding: 0 1rem;
            }
            .status-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.25rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.4rem;
            }
            .category-banner p {
                font-size: 0.85rem;
            }
            .section-header h2 {
                font-size: 1.25rem;
            }
            .address-card .card-top {
                flex-direction: column;
                gap: 0.75rem;
            }
            .address-card .card-img {
                width: 48px;
                height: 48px;
            }
            .card-meta {
                flex-wrap: wrap;
            }
            .badge {
                font-size: 0.7rem;
                padding: 0.2rem 0.5rem;
            }
            .section {
                padding: 2rem 0;
            }
        }

/* roulang page: category2 */
:root {
            --color-brand: #2563eb;
            --color-brand-dark: #1d4ed8;
            --color-brand-light: #3b82f6;
            --color-accent: #06b6d4;
            --color-accent-dark: #0891b2;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-text-muted: #94a3b8;
            --color-bg: #ffffff;
            --color-bg-alt: #f8fafc;
            --color-bg-card: #ffffff;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
            --shadow-lg: 0 4px 16px rgba(0,0,0,0.10), 0 8px 28px rgba(0,0,0,0.06);
            --shadow-xl: 0 8px 32px rgba(0,0,0,0.12), 0 16px 48px rgba(0,0,0,0.08);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 1.75rem;
                padding-right: 1.75rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.05);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 1rem;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-brand);
            white-space: nowrap;
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }
        .logo-link i {
            font-size: 1.35rem;
            color: var(--color-accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 0.15rem;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.9rem;
            border-radius: var(--radius-md);
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--color-brand);
            background: var(--color-bg-alt);
        }
        .nav-links a.nav-active {
            color: var(--color-brand);
            background: #eff6ff;
            font-weight: 600;
        }
        .nav-links a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2.5px;
            background: var(--color-brand);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .search-mini {
            display: none;
            align-items: center;
            gap: 0.4rem;
            padding: 0.45rem 0.8rem;
            border-radius: 2rem;
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            font-size: 0.88rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .search-mini i {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }
        .search-mini:hover {
            border-color: var(--color-brand-light);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        @media (min-width: 768px) {
            .search-mini {
                display: inline-flex;
            }
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.5rem 1.1rem;
            border-radius: 2rem;
            background: var(--color-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
            white-space: nowrap;
        }
        .btn-nav-cta:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 4px 14px rgba(37,99,235,0.28);
            transform: translateY(-1px);
        }
        .btn-nav-cta i {
            font-size: 0.8rem;
        }
        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: transparent;
            color: var(--color-text);
            font-size: 1.35rem;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: var(--color-bg-alt);
        }
        @media (min-width: 900px) {
            .mobile-menu-toggle {
                display: none;
            }
        }
        @media (max-width: 899px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 0.75rem 1rem;
                gap: 0.25rem;
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 0.7rem 1rem;
                border-radius: var(--radius-md);
                font-size: 0.95rem;
            }
            .nav-links a.nav-active::after {
                display: none;
            }
            .header-actions .btn-nav-cta {
                padding: 0.45rem 0.85rem;
                font-size: 0.82rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border);
            padding: 3rem 0 1.5rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 640px) {
            .footer-inner {
                grid-template-columns: 1.4fr 1fr 1fr;
            }
        }
        .footer-logo {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-brand);
            margin-bottom: 0.6rem;
        }
        .footer-brand p {
            color: var(--color-text-weak);
            font-size: 0.88rem;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-links-col h4 {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            margin-bottom: 0.75rem;
        }
        .footer-links-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links-col li {
            margin-bottom: 0.45rem;
        }
        .footer-links-col a {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            transition: color var(--transition-fast);
        }
        .footer-links-col a:hover {
            color: var(--color-brand);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* ===== 页面通用板块间距 ===== */
        .section-py {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }
        @media (min-width: 768px) {
            .section-py {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }
        .section-py-sm {
            padding-top: 2.5rem;
            padding-bottom: 2.5rem;
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 40%, #0e7490 100%);
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 4rem 0;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(255,255,255,0.08), transparent);
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }
        .page-banner-content .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: 1rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .page-banner-content .breadcrumb a {
            color: rgba(255,255,255,0.85);
            transition: color var(--transition-fast);
        }
        .page-banner-content .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner-content .breadcrumb i {
            font-size: 0.6rem;
            color: rgba(255,255,255,0.5);
        }
        .page-banner-content h1 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.25;
        }
        .page-banner-content .banner-sub {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.82);
            max-width: 580px;
            margin: 0 auto;
            line-height: 1.6;
        }
        @media (min-width: 768px) {
            .page-banner {
                padding: 5.5rem 0;
            }
            .page-banner-content h1 {
                font-size: 2.6rem;
            }
            .page-banner-content .banner-sub {
                font-size: 1.12rem;
            }
        }

        /* ===== 步骤卡片 ===== */
        .step-card {
            display: flex;
            gap: 1rem;
            padding: 1.5rem;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            align-items: flex-start;
        }
        .step-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }
        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-brand), var(--color-brand-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .step-body h3 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
            margin-bottom: 0.3rem;
        }
        .step-body p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 教程文章卡片 ===== */
        .article-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #cbd5e1;
        }
        .article-card-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--color-bg-alt);
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.04);
        }
        .article-card-img .card-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.65rem;
            border-radius: 2rem;
            letter-spacing: 0.02em;
        }
        .article-card-body {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-body h3 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
            margin-bottom: 0.5rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-body .card-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            gap: 1rem;
            margin-bottom: 0.6rem;
            flex-wrap: wrap;
        }
        .article-card-body .card-meta i {
            margin-right: 0.25rem;
        }
        .article-card-body .card-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            margin-top: 0.9rem;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-brand);
            transition: gap var(--transition-fast);
        }
        .article-card-body .card-link:hover {
            gap: 0.55rem;
            color: var(--color-brand-dark);
        }
        .article-card-body .card-link i {
            font-size: 0.7rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.25rem;
            background: transparent;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-text);
            text-align: left;
            gap: 1rem;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--color-bg-alt);
        }
        .faq-question i {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-brand);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.7;
        }

        /* ===== CTA区块 ===== */
        .cta-block {
            background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 50%, #0e7490 100%);
            border-radius: var(--radius-xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-block>* {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
        }
        .cta-block p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.82);
            margin-bottom: 1.5rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.7rem 1.8rem;
            border-radius: 2rem;
            background: #fff;
            color: var(--color-brand);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }
        .btn-cta-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0,0,0,0.22);
        }
        @media (min-width: 768px) {
            .cta-block {
                padding: 3.5rem 2rem;
            }
            .cta-block h2 {
                font-size: 2rem;
            }
        }

        /* ===== 平台标签 ===== */
        .platform-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 0.9rem;
            border-radius: 2rem;
            font-size: 0.82rem;
            font-weight: 500;
            background: var(--color-bg-alt);
            color: var(--color-text-weak);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .platform-tag i {
            font-size: 0.85rem;
        }
        .platform-tag:hover {
            border-color: var(--color-brand-light);
            color: var(--color-brand);
            background: #eff6ff;
        }

        /* ===== 信息提示条 ===== */
        .info-strip {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            padding: 1rem 1.25rem;
            background: #eff6ff;
            border-radius: var(--radius-lg);
            border-left: 3px solid var(--color-brand);
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.6;
        }
        .info-strip i {
            color: var(--color-brand);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 0.1rem;
        }

        /* ===== 覆盖Tailwind默认 ===== */
        @media (max-width: 640px) {
            .page-banner-content h1 {
                font-size: 1.55rem;
            }
            .page-banner-content .banner-sub {
                font-size: 0.9rem;
            }
            .step-card {
                flex-direction: column;
                gap: 0.6rem;
            }
            .step-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
        }