/* roulang page: index */
:root {
            --color-primary: #1e40af;
            --color-primary-light: #3b82f6;
            --color-primary-dark: #1e3a8a;
            --color-accent: #f97316;
            --color-accent-light: #fb923c;
            --color-accent-dark: #ea580c;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-surface-alt: #f1f5f9;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
            --max-width: 1240px;
            --header-height: 64px;
            --nav-tabs-height: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-light);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 3px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== CONTAINER ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== HEADER ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-row-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-primary-dark);
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }
        .header-search-input {
            width: 200px;
            padding: 9px 38px 9px 14px;
            border: 1.5px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            color: var(--color-text);
            background: var(--color-surface-alt);
            transition: all var(--transition-fast);
        }
        .header-search-input:focus {
            border-color: var(--color-primary-light);
            background: var(--color-surface);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
            width: 240px;
        }
        .header-search-input::placeholder {
            color: var(--color-text-muted);
        }
        .header-search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            font-size: 0.85rem;
        }
        .header-search-btn:hover {
            color: var(--color-primary);
            background: rgba(30, 64, 175, 0.06);
        }
        .btn-header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
        }
        .btn-header-cta:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
            transform: translateY(-1px);
        }

        /* ===== NAV TABS ===== */
        .nav-tabs-row {
            border-top: 1px solid var(--color-border-light);
            height: var(--nav-tabs-height);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            gap: 4px;
            padding: 0 4px;
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }
        .nav-tabs-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 16px;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .nav-tab:hover {
            color: var(--color-primary);
            background: rgba(30, 64, 175, 0.04);
        }
        .nav-tab.active {
            color: #fff;
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3);
        }
        .nav-tab.active:hover {
            color: #fff;
            background: var(--color-primary-dark);
        }
        .nav-tab .tab-icon {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            font-size: 1.3rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: var(--color-surface-alt);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
        }
        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            max-width: 85vw;
            height: 100vh;
            background: var(--color-surface);
            z-index: 1001;
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-xl);
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            right: 0;
        }
        .mobile-nav-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
        }
        .mobile-nav-close:hover {
            background: var(--color-surface-alt);
            color: var(--color-text);
        }
        .mobile-nav-tab {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }
        .mobile-nav-tab:hover,
        .mobile-nav-tab.active {
            background: rgba(30, 64, 175, 0.08);
            color: var(--color-primary);
            font-weight: 600;
        }
        .mobile-nav-tab.active {
            background: var(--color-primary);
            color: #fff;
        }

        /* ===== MAIN ===== */
        .site-main {
            flex: 1;
        }
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--color-surface-alt);
        }
        .section-dark {
            background: var(--color-primary-dark);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-header .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header-light .section-subtitle {
            color: rgba(255, 255, 255, 0.8);
        }

        /* ===== HERO ===== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0f1d3d 0%, #1a3a6b 40%, #1e4d8c 100%);
            overflow: hidden;
            padding: 64px 0;
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            mix-blend-mode: overlay;
            z-index: 0;
        }
        .hero-pattern {
            position: absolute;
            inset: 0;
            z-index: 1;
            background:
                radial-gradient(circle at 20% 30%, rgba(249, 115, 22, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 75% 60%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 40%);
        }
        .hero-dots {
            position: absolute;
            inset: 0;
            z-index: 2;
            background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 28px 28px;
            opacity: 0.6;
        }
        .hero .container {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-content {
            flex: 1 1 420px;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 18px;
            backdrop-filter: blur(6px);
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(249, 115, 22, 0);
            }
        }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .hero-content h1 .highlight {
            color: var(--color-accent-light);
            position: relative;
        }
        .hero-content .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.35);
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 6px 22px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 1.05rem;
        }
        .hero-visual {
            flex: 0 0 380px;
            max-width: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-card-stack {
            position: relative;
            width: 100%;
            aspect-ratio: 4/3;
            max-width: 400px;
        }
        .hero-float-card {
            position: absolute;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            color: var(--color-text);
            font-size: 0.9rem;
            transition: transform var(--transition-slow);
        }
        .hero-float-card.card-1 {
            top: 8%;
            left: 5%;
            z-index: 3;
            animation: float-card 5s ease-in-out infinite;
        }
        .hero-float-card.card-2 {
            top: 38%;
            right: 0;
            z-index: 2;
            animation: float-card 4.5s ease-in-out 0.8s infinite;
        }
        .hero-float-card.card-3 {
            bottom: 5%;
            left: 15%;
            z-index: 4;
            animation: float-card 5.5s ease-in-out 1.6s infinite;
        }
        @keyframes float-card {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-12px);
            }
        }
        .hero-float-card .mini-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .mini-icon.blue {
            background: #dbeafe;
            color: #1e40af;
        }
        .mini-icon.orange {
            background: #ffedd5;
            color: #f97316;
        }
        .mini-icon.green {
            background: #d1fae5;
            color: #10b981;
        }

        /* ===== SECTION: FEATURES ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-card .feature-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            transition: all var(--transition-normal);
        }
        .feature-card:hover .feature-icon-wrap {
            transform: scale(1.08);
        }
        .feature-icon-wrap.blue-bg {
            background: #eff6ff;
            color: #1e40af;
        }
        .feature-icon-wrap.orange-bg {
            background: #fff7ed;
            color: #f97316;
        }
        .feature-icon-wrap.green-bg {
            background: #ecfdf5;
            color: #10b981;
        }
        .feature-icon-wrap.purple-bg {
            background: #f5f3ff;
            color: #7c3aed;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .feature-card .feature-accent-line {
            position: absolute;
            top: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--color-primary-light);
            border-radius: 0 0 3px 0;
            transition: width var(--transition-slow);
        }
        .feature-card:hover .feature-accent-line {
            width: 60px;
        }

        /* ===== SECTION: CATEGORY ENTRY ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: flex-end;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
        }
        .category-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .category-card .cat-img-wrap {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .category-card .cat-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .category-card:hover .cat-img-wrap img {
            transform: scale(1.06);
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(to top, rgba(15, 29, 61, 0.85) 20%, rgba(15, 29, 61, 0.25) 60%, rgba(15, 29, 61, 0.05) 100%);
        }
        .category-card .cat-info {
            position: relative;
            z-index: 2;
            padding: 24px 20px;
            color: #fff;
            width: 100%;
        }
        .category-card .cat-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }
        .category-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }
        .category-card .cat-sub {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ===== SECTION: CMS LIST ===== */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 20px;
        }
        .cms-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .cms-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .cms-card .cms-thumb {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }
        .cms-card .cms-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .cms-card:hover .cms-thumb img {
            transform: scale(1.05);
        }
        .cms-card .cms-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .cms-card .cms-category-tag {
            display: inline-block;
            padding: 3px 10px;
            background: #eff6ff;
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            align-self: flex-start;
        }
        .cms-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-card h4 a {
            color: var(--color-text);
        }
        .cms-card h4 a:hover {
            color: var(--color-primary);
        }
        .cms-card .cms-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .cms-card .cms-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            padding-top: 4px;
            border-top: 1px solid var(--color-border-light);
        }
        .cms-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--color-text-soft);
            font-size: 1rem;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--color-border);
        }

        /* ===== SECTION: STATS / PROCESS ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            position: relative;
        }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(30, 64, 175, 0.3);
            position: relative;
            z-index: 2;
        }
        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }
        .process-step .step-connector {
            display: none;
            position: absolute;
            top: 24px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            height: 2px;
            background: var(--color-border);
            z-index: 1;
        }
        @media (min-width: 769px) {
            .process-step .step-connector {
                display: block;
            }
            .process-step:last-child .step-connector {
                display: none;
            }
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            text-align: center;
        }
        .stat-block {
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 24px 16px;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .stat-block .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--color-accent-light);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-block .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--color-primary);
            background: rgba(30, 64, 175, 0.02);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-surface-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            font-size: 0.8rem;
            color: var(--color-text-soft);
        }
        .faq-item.open .faq-icon {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            text-align: center;
            padding: 56px 0;
            background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-white {
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }
        .btn-white:hover {
            background: #f1f5f9;
            color: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(0, 0, 0, 0.3);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #0f1d3d;
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
            margin-bottom: 28px;
        }
        .footer-brand .footer-logo {
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 8px;
            display: block;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.6;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 16px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero {
                min-height: auto;
                padding: 48px 0;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-visual {
                flex: 0 0 300px;
                max-width: 340px;
            }
            .hero-float-card {
                font-size: 0.8rem;
                padding: 12px 14px;
            }
            .hero-float-card .mini-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .cms-list {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .header-search-input {
                width: 140px;
            }
            .header-search-input:focus {
                width: 170px;
            }
            .btn-header-cta {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .nav-tabs-row {
                padding: 0;
            }
            .nav-tabs-inner {
                padding: 0 8px;
                gap: 2px;
            }
            .nav-tab {
                padding: 7px 12px;
                font-size: 0.82rem;
            }
            .hero .container {
                flex-direction: column;
                text-align: center;
                gap: 28px;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .hero-content .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                flex: 0 0 auto;
                max-width: 300px;
                width: 100%;
            }
            .hero-card-stack {
                aspect-ratio: 3/2;
            }
            .hero-float-card.card-2 {
                right: -10px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .cms-list {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .process-step .step-connector {
                display: none;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .header-row-top {
                gap: 8px;
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .header-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
            .header-search-wrap {
                display: none;
            }
            .btn-header-cta {
                padding: 7px 12px;
                font-size: 0.78rem;
                gap: 4px;
            }
            .nav-tab {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-tabs-row {
                display: none;
            }
            .mobile-nav-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-nav-overlay.open {
                pointer-events: auto;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content .hero-desc {
                font-size: 0.95rem;
            }
            .hero-visual {
                max-width: 250px;
            }
            .hero-float-card {
                font-size: 0.72rem;
                padding: 10px 12px;
                gap: 8px;
            }
            .hero-float-card .mini-icon {
                width: 26px;
                height: 26px;
                font-size: 0.75rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.9rem;
            }
            .section {
                padding: 32px 0;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-block .stat-number {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a3c5e;
            --primary-light: #265480;
            --primary-dark: #0f2840;
            --accent: #e8a840;
            --accent-light: #f0c060;
            --accent-dark: #c88820;
            --bg: #f7f5f0;
            --bg-white: #ffffff;
            --bg-warm: #faf8f4;
            --text: #2c2c2c;
            --text-soft: #5a5a5a;
            --text-muted: #8a8a8a;
            --border: #e0dcd4;
            --border-light: #ede8df;
            --shadow-sm: 0 1px 3px rgba(15, 40, 64, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 40, 64, 0.08);
            --shadow-lg: 0 8px 32px rgba(15, 40, 64, 0.12);
            --shadow-xl: 0 16px 48px rgba(15, 40, 64, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Segoe UI', system-ui, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1240px;
            --nav-height-top: 56px;
            --nav-height-tabs: 50px;
            --nav-total-height: 106px;
        }

        *,
        *::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: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        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;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ==================== HEADER ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            box-shadow: 0 1px 0 var(--border-light), var(--shadow-sm);
        }

        .header-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height-top);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
            gap: 20px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .header-search-wrap {
            flex: 1;
            max-width: 440px;
            position: relative;
        }

        .header-search-wrap input {
            width: 100%;
            height: 40px;
            border: 2px solid var(--border);
            border-radius: 50px;
            padding: 0 44px 0 18px;
            font-size: 0.95rem;
            background: var(--bg-warm);
            color: var(--text);
            transition: all var(--transition-fast);
        }

        .header-search-wrap input:focus {
            border-color: var(--accent);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(232, 168, 64, 0.1);
            outline: none;
        }

        .header-search-wrap .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }

        .header-search-wrap .search-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-50%) scale(1.05);
        }

        .header-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 50px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

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

        .header-cta-btn:active {
            transform: scale(0.97);
        }

        /* 第二行导航 Tabs */
        .nav-tabs-row {
            background: var(--bg-warm);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: var(--nav-height-tabs);
            min-width: max-content;
            flex-wrap: nowrap;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-tab:hover {
            color: var(--primary);
            background: rgba(26, 60, 94, 0.05);
        }

        .nav-tab.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .nav-tab .tab-icon {
            font-size: 1rem;
            line-height: 1;
        }

        @media (max-width: 768px) {
            .header-top-row {
                padding: 0 12px;
                gap: 10px;
                height: 50px;
            }

            .header-logo {
                font-size: 1.1rem;
                gap: 6px;
            }

            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }

            .header-search-wrap {
                max-width: 180px;
            }

            .header-search-wrap input {
                height: 34px;
                font-size: 0.85rem;
                padding: 0 36px 0 12px;
            }

            .header-search-wrap .search-btn {
                width: 26px;
                height: 26px;
                right: 4px;
                font-size: 0.75rem;
            }

            .header-cta-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
                gap: 4px;
            }

            .nav-tabs-inner {
                padding: 0 10px;
                gap: 2px;
                height: 44px;
            }

            .nav-tab {
                padding: 7px 13px;
                font-size: 0.82rem;
                gap: 4px;
            }

            .nav-tab .tab-icon {
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .header-search-wrap {
                display: none;
            }

            .header-cta-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
                border-radius: 40px;
            }

            .header-logo {
                font-size: 1rem;
            }

            .header-logo .logo-icon {
                width: 26px;
                height: 26px;
                font-size: 0.75rem;
            }

            .nav-tab {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
        }

        /* ==================== MAIN ==================== */
        .main-content {
            flex: 1;
        }

        /* ==================== BREADCRUMB ==================== */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-list a {
            color: var(--text-soft);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-sep {
            color: var(--border);
            font-size: 0.7rem;
        }

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

        /* ==================== CATEGORY HERO ==================== */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 70px 0;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(15, 40, 64, 0.88) 0%,
                    rgba(26, 60, 94, 0.78) 40%,
                    rgba(38, 84, 128, 0.65) 100%);
            z-index: 1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            border: 2px dashed rgba(255, 255, 255, 0.12);
            border-radius: 50%;
            z-index: 2;
            pointer-events: none;
        }

        .category-hero-content {
            position: relative;
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 16px;
            max-width: 700px;
        }

        .category-hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .category-hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            letter-spacing: 0.8px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .category-hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 550px;
        }

        .category-hero-stats {
            display: flex;
            gap: 28px;
            margin-top: 8px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 44px 0;
            }

            .category-hero-title {
                font-size: 2rem;
            }

            .category-hero-desc {
                font-size: 0.95rem;
            }

            .category-hero-stats {
                gap: 16px;
            }

            .hero-stat-num {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                padding: 32px 0;
            }

            .category-hero-title {
                font-size: 1.5rem;
            }

            .category-hero-desc {
                font-size: 0.88rem;
            }

            .category-hero::after {
                width: 180px;
                height: 180px;
                top: -40px;
                right: -50px;
            }
        }

        /* ==================== SECTION ==================== */
        .section {
            padding: 56px 0;
        }

        .section-sm {
            padding: 36px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

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

        .section-head-left {
            text-align: left;
            margin-bottom: 32px;
        }

        .section-head-left h2 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .section-head-left p {
            color: var(--text-soft);
            font-size: 0.95rem;
        }

        @media (max-width: 768px) {
            .section {
                padding: 36px 0;
            }

            .section-head h2 {
                font-size: 1.5rem;
            }

            .section-head-left h2 {
                font-size: 1.35rem;
            }
        }

        /* ==================== FILTER TAGS ==================== */
        .filter-tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
            align-items: center;
        }

        .filter-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-soft);
            margin-right: 4px;
            flex-shrink: 0;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-soft);
            background: var(--bg-white);
            border: 1.5px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: #fefaf3;
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 520px) {
            .filter-tags-row {
                gap: 6px;
            }

            .filter-tag {
                padding: 5px 11px;
                font-size: 0.8rem;
            }

            .filter-label {
                font-size: 0.82rem;
                width: 100%;
                margin-bottom: 2px;
            }
        }

        /* ==================== ARTICLE CARD GRID ==================== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 600px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .article-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e8e4db;
        }

        .article-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .article-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            z-index: 2;
            letter-spacing: 0.3px;
        }

        .badge-guide {
            background: var(--accent);
            color: #fff;
        }

        .badge-tutorial {
            background: #3b8c6e;
            color: #fff;
        }

        .badge-faq {
            background: #6b5b9e;
            color: #fff;
        }

        .badge-tips {
            background: #c75b4a;
            color: #fff;
        }

        .article-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
            min-height: 0;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .article-card-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--border);
            flex-shrink: 0;
        }

        .article-card-title {
            font-family: var(--font-heading);
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: 0.3px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .article-card:hover .article-card-title {
            color: var(--primary);
        }

        .article-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        .article-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .article-card-tag {
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 50px;
            background: var(--bg-warm);
            color: var(--text-soft);
            white-space: nowrap;
        }

        .article-card-read {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-dark);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }

        .article-card:hover .article-card-read {
            gap: 7px;
            color: var(--accent);
        }

        /* ==================== PAGINATION ==================== */
        .pagination-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 44px;
            flex-wrap: wrap;
        }

        .page-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            background: var(--bg-white);
            border: 1.5px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .page-btn:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: #fefaf3;
        }

        .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
            pointer-events: none;
        }

        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        .page-ellipsis {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 2px;
        }

        /* ==================== CTA BANNER ==================== */
        .cta-banner {
            background: linear-gradient(150deg, var(--primary) 0%, var(--primary-light) 50%, #1e5078 100%);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -30px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            border: 3px dashed rgba(255, 255, 255, 0.1);
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: 20%;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

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

        .cta-banner-text h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .cta-banner-text p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
        }

        .cta-banner-btn {
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 50px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(232, 168, 64, 0.35);
        }

        .cta-banner-btn:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 24px rgba(232, 168, 64, 0.5);
            transform: translateY(-2px);
        }

        .cta-banner-btn:active {
            transform: scale(0.96);
        }

        @media (max-width: 768px) {
            .cta-banner {
                padding: 28px 24px;
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }

            .cta-banner-text h3 {
                font-size: 1.25rem;
            }

            .cta-banner-btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

        /* ==================== FAQ ==================== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            letter-spacing: 0.3px;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.3rem;
            font-weight: 300;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: #fefaf3;
        }

        .faq-item.open .faq-question::after {
            content: '−';
            transform: rotate(180deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
        }

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

        .faq-answer-inner {
            padding: 0 22px 18px;
            color: var(--text-soft);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }

            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* ==================== FOOTER ==================== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            display: block;
            margin-bottom: 8px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.4px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
        }

        .footer-bottom {
            margin-top: 36px;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .site-footer {
                padding: 32px 0 18px;
            }
        }

        /* ==================== ANIMATIONS ==================== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .anim-fade-up {
            animation: fadeInUp 0.55s ease forwards;
        }

        .anim-delay-1 {
            animation-delay: 0.1s;
            opacity: 0;
        }
        .anim-delay-2 {
            animation-delay: 0.2s;
            opacity: 0;
        }
        .anim-delay-3 {
            animation-delay: 0.3s;
            opacity: 0;
        }
        .anim-delay-4 {
            animation-delay: 0.4s;
            opacity: 0;
        }

/* roulang page: article */
:root {
            --color-brand: #1a35f5;
            --color-brand-dark: #1428e1;
            --color-brand-light: #eef4ff;
            --color-accent: #e8943a;
            --color-accent-light: #fdf6ee;
            --color-bg: #f8f9fb;
            --color-surface: #ffffff;
            --color-text: #1a1d28;
            --color-text-soft: #5a5f72;
            --color-text-muted: #8b8fa3;
            --color-border: #e4e7f0;
            --color-border-light: #f0f2f7;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.1), 0 8px 20px rgba(0,0,0,0.05);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::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: 'Noto Sans SC', system-ui, -apple-system, sans-serif; line-height: 1.7; background: var(--color-bg); color: var(--color-text); font-size: 16px; overflow-x: hidden; }

        /* 阅读进度条 */
        #readingProgressBar {
            position: fixed; top: 0; left: 0; height: 3px; background: linear-gradient(90deg, var(--color-brand), var(--color-accent));
            z-index: 10001; width: 0%; transition: width 0.1s linear; border-radius: 0 2px 2px 0;
        }

        /* 容器 */
        .container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

        /* Header & Navigation */
        .site-header { background: #fff; position: sticky; top: 0; z-index: 1000; box-shadow: 0 1px 0 var(--color-border-light), var(--shadow-sm); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 20px; flex-wrap: wrap; }
        .header-logo { font-size: 1.35rem; font-weight: 700; color: var(--color-brand); text-decoration: none; letter-spacing: -0.02em; white-space: nowrap; display: flex; align-items: center; gap: 8px; }
        .header-logo .logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--color-brand), #3b5cf7); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.1rem; font-weight: 900; }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .header-search { display: flex; align-items: center; background: var(--color-bg); border-radius: 50px; padding: 8px 16px; gap: 8px; border: 1px solid var(--color-border-light); transition: var(--transition-fast); }
        .header-search:focus-within { border-color: var(--color-brand); box-shadow: 0 0 0 3px rgba(26,53,245,0.08); background: #fff; }
        .header-search input { border: none; outline: none; background: transparent; font-size: 0.9rem; color: var(--color-text); width: 160px; font-family: inherit; }
        .header-search input::placeholder { color: var(--color-text-muted); }
        .header-search i { color: var(--color-text-muted); font-size: 0.85rem; }
        .header-cta { display: inline-flex; align-items: center; gap: 6px; background: var(--color-brand); color: #fff; padding: 9px 20px; border-radius: 50px; font-weight: 600; font-size: 0.9rem; text-decoration: none; transition: var(--transition-smooth); white-space: nowrap; }
        .header-cta:hover { background: var(--color-brand-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }

        /* 频道Tabs导航行 */
        .nav-tabs-row { background: #fff; border-top: 1px solid var(--color-border-light); border-bottom: 1px solid var(--color-border-light); }
        .nav-tabs-inner { display: flex; gap: 4px; padding: 6px 0; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; align-items: center; }
        .nav-tabs-inner::-webkit-scrollbar { display: none; }
        .nav-tab { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: 50px; font-size: 0.9rem; font-weight: 500; color: var(--color-text-soft); text-decoration: none; transition: var(--transition-fast); white-space: nowrap; position: relative; }
        .nav-tab:hover { color: var(--color-brand); background: var(--color-brand-light); }
        .nav-tab.active { color: #fff; background: var(--color-brand); font-weight: 600; box-shadow: var(--shadow-sm); }
        .nav-tab .tab-icon { font-size: 1rem; }
        .nav-tabs-container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

        /* 面包屑Banner */
        .article-banner { position: relative; padding: 56px 0 48px; background: linear-gradient(170deg, #1a1d28 0%, #1e2440 40%, #1a1d28 100%); overflow: hidden; }
        .article-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.18; }
        .article-banner::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px; background: linear-gradient(to top, var(--color-bg), transparent); }
        .article-banner-content { position: relative; z-index: 1; }
        .breadcrumb { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
        .breadcrumb a { color: rgba(255,255,255,0.85); text-decoration: none; transition: var(--transition-fast); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb .bc-sep { color: rgba(255,255,255,0.4); font-size: 0.7rem; }
        .breadcrumb .bc-current { color: rgba(255,255,255,0.55); }
        .article-meta-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
        .article-cat-tag { display: inline-flex; align-items: center; gap: 5px; padding: 6px 14px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; background: rgba(255,255,255,0.12); color: #fff; text-decoration: none; backdrop-filter: blur(4px); transition: var(--transition-fast); }
        .article-cat-tag:hover { background: rgba(255,255,255,0.22); }
        .article-date-badge { display: inline-flex; align-items: center; gap: 5px; font-size: 0.82rem; color: rgba(255,255,255,0.6); }
        .article-banner h1 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; color: #fff; line-height: 1.35; letter-spacing: -0.01em; margin-bottom: 8px; }

        /* 文章主体区 */
        .article-main-section { padding: 40px 0 56px; background: var(--color-bg); margin-top: -30px; position: relative; z-index: 2; }
        .article-featured-image { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 36px; box-shadow: var(--shadow-lg); }
        .article-featured-image img { width: 100%; display: block; object-fit: cover; max-height: 460px; }
        .article-body { background: #fff; border-radius: var(--radius-lg); padding: 44px 48px; box-shadow: var(--shadow-md); border: 1px solid var(--color-border-light); }
        .article-body h2 { font-size: 1.5rem; font-weight: 700; color: var(--color-text); margin: 36px 0 16px; padding-bottom: 10px; border-bottom: 2px solid var(--color-border-light); }
        .article-body h3 { font-size: 1.2rem; font-weight: 600; color: var(--color-text); margin: 28px 0 12px; }
        .article-body p { margin-bottom: 18px; color: var(--color-text-soft); line-height: 1.85; }
        .article-body ul, .article-body ol { margin: 12px 0 20px 20px; color: var(--color-text-soft); }
        .article-body li { margin-bottom: 8px; line-height: 1.7; }
        .article-body img { max-width: 100%; border-radius: var(--radius-md); margin: 20px 0; }
        .article-body blockquote { border-left: 4px solid var(--color-brand); padding: 16px 20px; margin: 24px 0; background: var(--color-brand-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--color-text-soft); font-style: italic; }
        .article-body a { color: var(--color-brand); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--color-brand-dark); }

        /* 文章底部标签行 */
        .article-tags-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--color-border-light); }
        .article-tag { display: inline-block; padding: 6px 14px; background: var(--color-bg); border-radius: 50px; font-size: 0.82rem; color: var(--color-text-soft); text-decoration: none; transition: var(--transition-fast); border: 1px solid var(--color-border-light); }
        .article-tag:hover { background: var(--color-brand-light); color: var(--color-brand); border-color: var(--color-brand); }

        /* 分享区域 */
        .share-section { display: flex; align-items: center; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
        .share-label { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 500; }
        .share-btn { width: 38px; height: 38px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--color-border); color: var(--color-text-soft); text-decoration: none; transition: var(--transition-fast); background: #fff; }
        .share-btn:hover { background: var(--color-brand); color: #fff; border-color: var(--color-brand); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* 推荐区域 */
        .related-section { padding: 48px 0 60px; background: #fff; border-top: 1px solid var(--color-border-light); }
        .related-section .section-header { text-align: center; margin-bottom: 40px; }
        .related-section .section-header h2 { font-size: 1.7rem; font-weight: 700; color: var(--color-text); display: flex; align-items: center; justify-content: center; gap: 10px; }
        .related-section .section-header h2 .header-icon { font-size: 1.5rem; }
        .related-section .section-header p { color: var(--color-text-muted); margin-top: 6px; }
        .related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
        .related-card { background: #fff; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-border-light); transition: var(--transition-smooth); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-border); }
        .related-card-img { height: 180px; overflow: hidden; position: relative; background: var(--color-bg); }
        .related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .related-card:hover .related-card-img img { transform: scale(1.05); }
        .related-card-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
        .related-card-cat { font-size: 0.75rem; font-weight: 600; color: var(--color-accent); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 6px; }
        .related-card h3 { font-size: 1.02rem; font-weight: 600; color: var(--color-text); line-height: 1.4; margin-bottom: 8px; }
        .related-card h3 a { color: inherit; text-decoration: none; }
        .related-card h3 a:hover { color: var(--color-brand); }
        .related-card p { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.5; flex: 1; }
        .related-card-meta { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 12px; display: flex; align-items: center; gap: 6px; }

        /* CTA区域 */
        .cta-section { padding: 56px 0; background: linear-gradient(160deg, #1a1d28 0%, #1e2a50 100%); position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: 0.1; }
        .cta-section .container { position: relative; z-index: 1; text-align: center; }
        .cta-section h2 { font-size: 1.8rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
        .cta-section p { color: rgba(255,255,255,0.7); margin-bottom: 28px; max-width: 500px; margin-left: auto; margin-right: auto; }
        .cta-btn-group { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
        .btn-primary-cta { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; background: var(--color-accent); color: #fff; border-radius: 50px; font-weight: 600; font-size: 1rem; text-decoration: none; transition: var(--transition-smooth); box-shadow: 0 6px 20px rgba(232,148,58,0.35); }
        .btn-primary-cta:hover { background: #d4782a; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(232,148,58,0.45); }
        .btn-outline-cta { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.35); border-radius: 50px; font-weight: 600; font-size: 1rem; text-decoration: none; transition: var(--transition-smooth); }
        .btn-outline-cta:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }

        /* 内容未找到 */
        .not-found-section { padding: 80px 0; text-align: center; }
        .not-found-icon { font-size: 5rem; margin-bottom: 20px; display: block; }
        .not-found-section h2 { font-size: 1.8rem; font-weight: 700; color: var(--color-text); margin-bottom: 10px; }
        .not-found-section p { color: var(--color-text-muted); margin-bottom: 28px; }
        .btn-back-home { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; background: var(--color-brand); color: #fff; border-radius: 50px; font-weight: 600; text-decoration: none; transition: var(--transition-smooth); }
        .btn-back-home:hover { background: var(--color-brand-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* Footer */
        .site-footer { background: #1a1d28; color: rgba(255,255,255,0.7); padding: 56px 0 32px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-logo { font-size: 1.3rem; font-weight: 700; color: #fff; display: block; margin-bottom: 12px; }
        .footer-brand p { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.55); }
        .footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); text-decoration: none; transition: var(--transition-fast); font-size: 0.88rem; }
        .footer-col ul li a:hover { color: #fff; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.4); }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .article-body { padding: 32px 28px; }
            .related-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
        }
        @media (max-width: 768px) {
            .header-inner { gap: 10px; }
            .header-search input { width: 100px; }
            .header-cta { padding: 8px 15px; font-size: 0.82rem; }
            .nav-tab { padding: 8px 14px; font-size: 0.82rem; }
            .article-banner { padding: 40px 0 32px; }
            .article-body { padding: 24px 18px; border-radius: var(--radius-md); }
            .article-featured-image { border-radius: var(--radius-md); margin-bottom: 24px; }
            .article-featured-image img { max-height: 280px; }
            .related-grid { grid-template-columns: 1fr; gap: 16px; }
            .related-card-img { height: 160px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .cta-section h2 { font-size: 1.4rem; }
            .article-banner h1 { font-size: 1.4rem; }
            .header-logo { font-size: 1.1rem; }
            .header-logo .logo-icon { width: 32px; height: 32px; font-size: 0.9rem; }
        }
        @media (max-width: 520px) {
            .container, .container-narrow { padding: 0 14px; }
            .nav-tabs-container { padding: 0 14px; }
            .header-inner { padding: 10px 0; }
            .header-search { display: none; }
            .header-cta { padding: 7px 13px; font-size: 0.78rem; }
            .article-banner { padding: 32px 0 24px; }
            .article-body { padding: 18px 14px; font-size: 0.9rem; }
            .article-body h2 { font-size: 1.2rem; }
            .article-banner h1 { font-size: 1.25rem; }
            .related-section .section-header h2 { font-size: 1.3rem; }
            .cta-section { padding: 40px 0; }
            .cta-section h2 { font-size: 1.2rem; }
            .btn-primary-cta, .btn-outline-cta { padding: 12px 22px; font-size: 0.9rem; }
            .breadcrumb { font-size: 0.75rem; }
            .article-cat-tag { font-size: 0.72rem; padding: 5px 10px; }
        }