/* roulang page: index */
:root {
            --color-primary: #1a365d;
            --color-primary-light: #2a5080;
            --color-primary-dark: #0f2440;
            --color-accent: #e8964a;
            --color-accent-light: #f0b87a;
            --color-accent-dark: #c77830;
            --color-success: #2d8b6e;
            --color-warning: #e8b43a;
            --color-danger: #d94a4a;
            --color-bg: #f8f9fb;
            --color-bg-alt: #eef1f6;
            --color-bg-card: #ffffff;
            --color-bg-dark: #1a2634;
            --color-text: #1e293b;
            --color-text-secondary: #5f6b7a;
            --color-text-light: #8895a7;
            --color-text-on-dark: #e2e8f0;
            --color-border: #dde3ed;
            --color-border-light: #eef1f6;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 2px rgba(15,36,64,0.05);
            --shadow-md: 0 4px 16px rgba(15,36,64,0.08);
            --shadow-lg: 0 8px 32px rgba(15,36,64,0.12);
            --shadow-xl: 0 16px 48px rgba(15,36,64,0.16);
            --shadow-card: 0 2px 8px rgba(15,36,64,0.06), 0 1px 2px rgba(15,36,64,0.04);
            --shadow-card-hover: 0 8px 28px rgba(15,36,64,0.12), 0 2px 6px rgba(15,36,64,0.06);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1240px;
            --header-height: 68px;
            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 20px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        @media (min-width: 768px) {
            .container {
                padding-left: var(--spacing-lg);
                padding-right: var(--spacing-lg);
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: var(--spacing-xl);
                padding-right: var(--spacing-xl);
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--color-border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            height: 100%;
        }

        @media (min-width: 768px) {
            .header-inner {
                padding: 0 var(--spacing-lg);
            }
        }

        @media (min-width: 1024px) {
            .header-inner {
                padding: 0 var(--spacing-xl);
            }
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -1px;
        }

        .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo-text span {
            color: var(--color-accent);
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: var(--spacing-sm);
        }

        @media (min-width: 768px) {
            .nav-links {
                display: flex;
                gap: var(--spacing-md);
            }
        }

        .nav-link {
            position: relative;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(26,54,93,0.04);
        }

        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            white-space: nowrap;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 10px rgba(232,150,74,0.3);
        }

        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(232,150,74,0.4);
            color: #fff;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(232,150,74,0.3);
        }

        .nav-status-dot {
            width: 8px;
            height: 8px;
            background: #22c55e;
            border-radius: 50%;
            display: inline-block;
            animation: statusPulse 2s infinite;
        }

        @keyframes statusPulse {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
            50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(34,197,94,0); }
        }

        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            color: var(--color-text);
            font-size: 1.3rem;
            border: 1px solid var(--color-border);
            background: var(--color-bg-card);
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            border-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        @media (min-width: 768px) {
            .mobile-menu-btn {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-bg-card);
            z-index: 999;
            flex-direction: column;
            padding: var(--spacing-lg) var(--spacing-md);
            gap: var(--spacing-sm);
            overflow-y: auto;
            border-top: 1px solid var(--color-border-light);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            font-size: 1.05rem;
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--radius-md);
        }

        .mobile-menu .nav-cta {
            margin-top: var(--spacing-sm);
            text-align: center;
            justify-content: center;
            padding: 12px 24px;
            font-size: 1rem;
        }

        /* Hero Section */
        .hero {
            position: relative;
            background: linear-gradient(170deg, #0f2440 0%, #1a365d 35%, #1e4270 60%, #1a365d 100%);
            color: #fff;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            filter: blur(120px);
            opacity: 0.3;
            pointer-events: none;
        }

        .hero-glow.g1 {
            top: -150px;
            right: -80px;
            background: rgba(232,150,74,0.5);
        }

        .hero-glow.g2 {
            bottom: -200px;
            left: -100px;
            background: rgba(42,80,128,0.5);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        @media (min-width: 768px) {
            .hero-inner {
                flex-direction: row;
                align-items: center;
                gap: var(--spacing-2xl);
                padding: 0 var(--spacing-lg);
            }
        }

        @media (min-width: 1024px) {
            .hero-inner {
                padding: 0 var(--spacing-xl);
            }
        }

        .hero-content {
            flex: 1;
            max-width: 600px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            padding: 7px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: var(--spacing-md);
            backdrop-filter: blur(6px);
        }

        .hero-badge .live-dot {
            width: 9px;
            height: 9px;
            background: #22c55e;
            border-radius: 50%;
            animation: statusPulse 2s infinite;
        }

        .hero-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.01em;
            margin-bottom: var(--spacing-sm);
        }

        .hero-title .highlight {
            color: var(--color-accent-light);
            position: relative;
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 2.8rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.2rem;
            }
        }

        .hero-desc {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.78);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(232,150,74,0.35);
            border-color: transparent;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232,150,74,0.45);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232,150,74,0.3);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255,255,255,0.4);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.7);
        }

        .btn-outline:active {
            background: rgba(255,255,255,0.15);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-full);
        }

        .btn-md {
            padding: 10px 22px;
            font-size: 0.9rem;
        }

        .hero-visual {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-card-cluster {
            position: relative;
            width: 280px;
            height: 280px;
        }

        @media (min-width: 768px) {
            .hero-card-cluster {
                width: 340px;
                height: 340px;
            }
        }

        .hero-floating-card {
            position: absolute;
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .hero-floating-card.c1 {
            top: 20px;
            left: 10px;
            width: 200px;
        }

        .hero-floating-card.c2 {
            top: 100px;
            right: 5px;
            width: 180px;
        }

        .hero-floating-card.c3 {
            bottom: 30px;
            left: 40px;
            width: 210px;
        }

        .hero-floating-card .fc-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .fc-icon.secure {
            background: rgba(45,139,110,0.25);
            color: #5ee8b8;
        }

        .fc-icon.fast {
            background: rgba(232,180,58,0.25);
            color: #f0d060;
        }

        .fc-icon.shield {
            background: rgba(42,80,128,0.3);
            color: #7db8f0;
        }

        .hero-floating-card .fc-text {
            font-size: 0.82rem;
            font-weight: 500;
            color: rgba(255,255,255,0.85);
            line-height: 1.3;
        }

        .hero-floating-card .fc-sub {
            font-size: 0.72rem;
            color: rgba(255,255,255,0.55);
        }

        /* Update Bar */
        .update-bar {
            background: var(--color-bg-card);
            border-bottom: 1px solid var(--color-border-light);
            padding: 10px 0;
            overflow: hidden;
            position: relative;
        }

        .update-bar-inner {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            white-space: nowrap;
            animation: scrollUpdate 28s linear infinite;
        }

        .update-bar:hover .update-bar-inner {
            animation-play-state: paused;
        }

        @keyframes scrollUpdate {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        .update-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--color-primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        .update-item {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            flex-shrink: 0;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

        .update-item:hover {
            color: var(--color-primary);
        }

        .update-dot {
            width: 5px;
            height: 5px;
            background: var(--color-accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* Section Common */
        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-accent);
            margin-bottom: var(--spacing-xs);
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
            .section {
                padding: var(--spacing-3xl) 0;
            }
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-md);
        }

        @media (min-width: 520px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: var(--spacing-lg);
            }
        }

        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            opacity: 0;
            transition: all var(--transition-smooth);
        }

        .feature-card:hover::before {
            opacity: 1;
            transform: scale(2.5);
        }

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

        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: var(--spacing-sm);
            position: relative;
            z-index: 1;
        }

        .fci-blue {
            background: rgba(26,54,93,0.1);
            color: var(--color-primary);
        }

        .fci-orange {
            background: rgba(232,150,74,0.12);
            color: var(--color-accent);
        }

        .fci-green {
            background: rgba(45,139,110,0.1);
            color: var(--color-success);
        }

        .fci-purple {
            background: rgba(120,90,200,0.1);
            color: #6a5acd;
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            position: relative;
            z-index: 1;
        }

        .feature-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            position: relative;
            z-index: 1;
        }

        /* Category Entry Cards */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-md);
        }

        @media (min-width: 640px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: block;
            color: inherit;
        }

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

        .category-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        @media (min-width: 768px) {
            .category-card-img {
                height: 200px;
            }
        }

        .category-card-body {
            padding: var(--spacing-md);
        }

        .category-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(232,150,74,0.12);
            color: var(--color-accent-dark);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 8px;
        }

        .category-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 4px;
            line-height: 1.35;
        }

        .category-card p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        .category-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.85rem;
            margin-top: 8px;
            transition: gap var(--transition-fast);
        }

        .category-card:hover .category-card-arrow {
            gap: 10px;
        }

        /* CMS List Section */
        .cms-list-section {
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .cms-list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) var(--spacing-lg);
            border-bottom: 1px solid var(--color-border-light);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }

        .cms-list-header h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cms-list-header h3 .icon-circle {
            width: 10px;
            height: 10px;
            background: var(--color-accent);
            border-radius: 50%;
        }

        .cms-filter-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .cms-filter-tag {
            padding: 5px 13px;
            font-size: 0.8rem;
            font-weight: 500;
            border-radius: var(--radius-full);
            background: var(--color-bg-alt);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .cms-filter-tag:hover,
        .cms-filter-tag.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .cms-list-body {
            padding: var(--spacing-sm);
        }

        .cms-list-item {
            display: flex;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            cursor: pointer;
            border-bottom: 1px solid var(--color-border-light);
            align-items: flex-start;
        }

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

        .cms-list-item:hover {
            background: var(--color-bg-alt);
        }

        .cms-item-img {
            width: 80px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

        @media (min-width: 520px) {
            .cms-item-img {
                width: 110px;
                height: 78px;
            }
        }

        .cms-item-info {
            flex: 1;
            min-width: 0;
        }

        .cms-item-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
            line-height: 1.35;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-item-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.78rem;
            color: var(--color-text-light);
            flex-wrap: wrap;
        }

        .cms-item-meta .cms-badge {
            background: rgba(26,54,93,0.08);
            color: var(--color-primary);
            padding: 2px 9px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.73rem;
        }

        .cms-empty {
            text-align: center;
            padding: var(--spacing-xl);
            color: var(--color-text-light);
            font-size: 0.95rem;
        }

        .cms-view-all {
            display: block;
            text-align: center;
            padding: var(--spacing-md);
            font-weight: 600;
            color: var(--color-accent);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            border-top: 1px solid var(--color-border-light);
        }

        .cms-view-all:hover {
            color: var(--color-accent-dark);
        }

        /* Stats Section */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }

        @media (min-width: 640px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .stat-card {
            text-align: center;
            padding: var(--spacing-lg) var(--spacing-md);
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }

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

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .plus {
            color: var(--color-accent);
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* Process / Steps */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 700px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            background: var(--color-bg-card);
            padding: var(--spacing-lg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }

        .step-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 3px;
        }

        .step-content p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .faq-item {
            background: var(--color-bg-card);
            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);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: var(--spacing-md) var(--spacing-lg);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-sm);
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-icon {
            font-size: 0.85rem;
            color: var(--color-text-light);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

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

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

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

        .faq-answer-inner {
            padding: 0 var(--spacing-lg) var(--spacing-md);
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-bg-img {
            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-inner {
            position: relative;
            z-index: 2;
            padding: var(--spacing-2xl) var(--spacing-md);
            max-width: 640px;
            margin: 0 auto;
        }

        @media (min-width: 768px) {
            .cta-inner {
                padding: var(--spacing-3xl) var(--spacing-lg);
            }
        }

        .cta-inner h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        @media (min-width: 768px) {
            .cta-inner h2 {
                font-size: 2.2rem;
            }
        }

        .cta-inner p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: var(--spacing-lg);
            line-height: 1.6;
        }

        .btn-white {
            background: #fff;
            color: var(--color-primary);
            border-color: #fff;
            font-weight: 700;
            box-shadow: 0 4px 18px rgba(0,0,0,0.15);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0,0,0,0.25);
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-xl);
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 3fr 1fr 1fr 1fr;
            }
        }

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: #fff;
        }

        .footer-brand h3 span {
            color: var(--color-accent-light);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(226,232,240,0.65);
            line-height: 1.6;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.83rem;
            color: rgba(226,232,240,0.6);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: var(--spacing-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.8rem;
            color: rgba(226,232,240,0.5);
        }

        /* Responsive */
        @media (max-width: 767px) {
            .hero {
                min-height: auto;
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-floating-card {
                display: none;
            }
            .hero-card-cluster {
                width: auto;
                height: auto;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cms-list-item {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .cms-item-img {
                width: 100%;
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 519px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .cms-list-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (min-width: 520px) and (max-width: 767px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* Focus styles for accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        .btn:focus-visible {
            outline-offset: 4px;
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg-alt);
        }
        ::-webkit-scrollbar-thumb {
            background: #c5cdd8;
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #a0aab5;
        }

/* roulang page: article */
:root {
            --color-primary: #2563eb;
            --color-primary-dark: #1d4ed8;
            --color-primary-light: #3b82f6;
            --color-primary-bg: #eff6ff;
            --color-accent: #f97316;
            --color-accent-light: #fb923c;
            --color-accent-bg: #fff7ed;
            --color-success: #10b981;
            --color-success-bg: #ecfdf5;
            --color-bg: #f1f5f9;
            --color-surface: #ffffff;
            --color-surface-alt: #f8fafc;
            --color-text: #0f172a;
            --color-text-secondary: #334155;
            --color-text-muted: #64748b;
            --color-text-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.1), 0 4px 8px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.12);
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1240px;
            --max-width-article: 780px;
            --header-height: 64px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
        }

        *, *::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(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
        }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; border: none; outline: none; }
        input, textarea { font-family: inherit; }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .container--narrow {
            max-width: var(--max-width-article);
        }

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            gap: var(--spacing-md);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-text);
            white-space: nowrap;
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo span { color: var(--color-primary); }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: var(--color-primary-bg);
        }
        .nav-link.active {
            color: var(--color-primary);
            background: var(--color-primary-bg);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(37,99,235,0.3);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37,99,235,0.4);
            color: #fff;
        }
        .nav-status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-success);
            display: inline-block;
            animation: pulse-dot 2s infinite;
            flex-shrink: 0;
        }
        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.6); }
            50% { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover { background: var(--color-bg); }
        .mobile-menu-btn i { pointer-events: none; }

        /* 文章Banner */
        .article-banner {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1d4ed8 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: var(--spacing-xl) 0;
            color: #fff;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,23,42,0.6);
            z-index: 1;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: var(--spacing-md);
        }
        .breadcrumb a {
            color: rgba(255,255,255,0.85);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb .sep { color: rgba(255,255,255,0.4); font-size: 0.7rem; }
        .breadcrumb .current { color: rgba(255,255,255,0.6); }
        .article-banner-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }
        .article-banner-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }
        .article-banner-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-banner-meta .meta-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(255,255,255,0.15);
            color: #fff;
            backdrop-filter: blur(4px);
        }

        /* 文章主体 */
        .article-main {
            padding: var(--spacing-lg) 0 var(--spacing-xl);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            align-items: start;
        }
        .article-featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            margin-bottom: var(--spacing-lg);
        }
        .article-featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .article-content {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow);
            line-height: 1.85;
            font-size: 1.05rem;
            color: var(--color-text-secondary);
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin: var(--spacing-lg) 0 var(--spacing-sm);
            padding-bottom: var(--spacing-xs);
            border-bottom: 2px solid var(--color-primary-bg);
            letter-spacing: -0.01em;
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: var(--spacing-md) 0 var(--spacing-xs);
        }
        .article-content p {
            margin-bottom: var(--spacing-sm);
        }
        .article-content ul, .article-content ol {
            margin: var(--spacing-sm) 0;
            padding-left: var(--spacing-md);
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: var(--color-primary-bg);
            padding: var(--spacing-sm) var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--color-text-secondary);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: var(--spacing-md) auto;
            box-shadow: var(--shadow-md);
        }
        .article-content a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover { color: var(--color-primary-dark); }
        .article-content strong { color: var(--color-text); font-weight: 700; }

        /* 文章底部 */
        .article-footer-meta {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md) var(--spacing-lg);
            box-shadow: var(--shadow);
            margin-top: var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .article-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            transition: all var(--transition-fast);
        }
        .article-tag:hover {
            background: var(--color-primary);
            color: #fff;
        }
        .share-btns {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-bg);
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }
        .share-btn:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* 侧边栏 */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + var(--spacing-md));
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
        }
        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--color-accent); font-size: 0.85rem; }
        .sidebar-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .sidebar-list a:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary);
        }
        .sidebar-list a .list-num {
            width: 22px;
            height: 22px;
            border-radius: 6px;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }
        .sidebar-list a:nth-child(1) .list-num,
        .sidebar-list a:nth-child(2) .list-num,
        .sidebar-list a:nth-child(3) .list-num {
            background: var(--color-accent-bg);
            color: var(--color-accent);
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .sidebar-tag {
            padding: 5px 10px;
            border-radius: 100px;
            font-size: 0.75rem;
            background: var(--color-bg);
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }
        .sidebar-tag:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary);
        }

        /* 热门推荐 */
        .related-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-surface-alt);
        }
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title .icon-accent {
            width: 6px;
            height: 24px;
            border-radius: 3px;
            background: var(--color-accent);
            display: inline-block;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .related-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.05);
        }
        .related-card-img .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: 100px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(0,0,0,0.6);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .related-card-body {
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-title a { color: inherit; }
        .related-card-title a:hover { color: var(--color-primary); }
        .related-card-excerpt {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .related-card-time {
            font-size: 0.75rem;
            color: var(--color-text-light);
            margin-top: var(--spacing-xs);
        }

        /* FAQ */
        .faq-section {
            padding: var(--spacing-xl) 0;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text);
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-question .faq-q-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-answer {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            padding-left: 34px;
        }

        /* CTA */
        .cta-section {
            padding: var(--spacing-xl) 0;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1d4ed8 100%);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,23,42,0.55);
            z-index: 1;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }
        .cta-inner p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-md);
            line-height: 1.7;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: #fff;
            color: var(--color-primary-dark);
            box-shadow: 0 4px 16px rgba(255,255,255,0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255,255,255,0.35);
            color: var(--color-primary-dark);
        }
        .btn-outline-light {
            border: 2px solid rgba(255,255,255,0.5);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
        }

        /* 未找到 */
        .not-found-area {
            text-align: center;
            padding: var(--spacing-xl) var(--spacing-md);
        }
        .not-found-icon {
            font-size: 4rem;
            color: var(--color-text-light);
            margin-bottom: var(--spacing-md);
        }
        .not-found-area h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: var(--spacing-sm);
        }
        .not-found-area p {
            color: var(--color-text-muted);
            margin-bottom: var(--spacing-md);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--color-primary);
            color: #fff;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(37,99,235,0.3);
        }
        .btn-secondary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(37,99,235,0.4);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-xs);
        }
        .footer-brand h3 span { color: var(--color-primary-light); }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #94a3b8;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: var(--spacing-sm);
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94a3b8;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover { color: #fff; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: var(--spacing-md);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
            font-size: 0.8rem;
            color: #64748b;
        }

        /* 移动端 */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: flex; }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: var(--spacing-md);
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 999;
            }
            .nav-links.open { display: flex; }
            .nav-link, .nav-cta {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                border-radius: var(--radius);
            }
            .header-inner { gap: var(--spacing-sm); }
            .article-banner-title { font-size: 1.35rem; }
            .article-content { padding: var(--spacing-md); font-size: 0.95rem; }
            .related-grid { grid-template-columns: 1fr 1fr; }
            .article-sidebar { grid-template-columns: 1fr; }
            .article-footer-meta { flex-direction: column; align-items: flex-start; }
            .footer-grid { grid-template-columns: 1fr; }
            .cta-inner h2 { font-size: 1.4rem; }
            .section-title { font-size: 1.2rem; }
            .container { padding: 0 var(--spacing-sm); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .article-banner-title { font-size: 1.15rem; }
            .article-banner-meta { font-size: 0.78rem; gap: var(--spacing-xs); }
            .breadcrumb { font-size: 0.75rem; }
            .logo { font-size: 1rem; }
            .logo-icon { width: 30px; height: 30px; font-size: 0.85rem; }
            .article-content { padding: var(--spacing-sm); font-size: 0.9rem; border-radius: var(--radius); }
            .article-featured-image { border-radius: var(--radius); }
            .article-footer-meta { padding: var(--spacing-sm); }
        }

/* roulang page: category1 */
:root {
            --primary: #1a3a5c;
            --primary-dark: #0f2440;
            --primary-light: #2c5f8a;
            --primary-surface: #e8f0f8;
            --accent: #d4a853;
            --accent-dark: #b8923a;
            --accent-light: #e8c97a;
            --accent-surface: #fdf6e8;
            --bg: #f5f6f8;
            --bg-alt: #edf0f4;
            --surface: #ffffff;
            --surface-hover: #fafbfc;
            --text: #1f2937;
            --text-heading: #111827;
            --text-muted: #6b7280;
            --text-weak: #9ca3af;
            --border: #e5e7eb;
            --border-light: #f0f1f3;
            --border-focus: #1a3a5c;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 2px 8px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.09), 0 2px 6px rgba(0,0,0,0.05);
            --shadow-lg: 0 10px 32px rgba(0,0,0,0.11), 0 4px 10px rgba(0,0,0,0.06);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.14), 0 8px 18px rgba(0,0,0,0.07);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --max-width-narrow: 960px;
            --header-height: 68px;
            --section-gap: 72px;
            --section-gap-sm: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

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

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

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }
        .header-logo span {
            color: var(--accent);
            font-weight: 800;
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary-surface);
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: var(--radius-full);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(212,168,83,0.3);
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(212,168,83,0.4);
            transform: translateY(-1px);
        }
        .nav-status-dot {
            width: 8px;
            height: 8px;
            background: #4ade80;
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 1.3rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .hamburger:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }

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

        /* ========== CATEGORY BANNER ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(26,58,92,0.88) 0%, rgba(15,36,64,0.92) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 80px 0 72px;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(212,168,83,0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.875rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255,255,255,0.8);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            color: rgba(255,255,255,0.4);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--accent-light);
            font-weight: 500;
        }
        .category-banner h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .category-banner .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .banner-search {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 0;
            border-radius: var(--radius-full);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .banner-search input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid transparent;
            border-right: none;
            outline: none;
            font-size: 0.95rem;
            background: #fff;
            color: var(--text);
            border-radius: var(--radius-full) 0 0 var(--radius-full);
            transition: border-color var(--transition-fast);
        }
        .banner-search input:focus {
            border-color: var(--accent);
        }
        .banner-search input::placeholder {
            color: var(--text-weak);
        }
        .banner-search button {
            padding: 14px 24px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 0 var(--radius-full) var(--radius-full) 0;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .banner-search button:hover {
            background: var(--accent-dark);
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section--alt {
            background: var(--bg-alt);
        }
        .section--tight {
            padding: var(--section-gap-sm) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-header .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--accent-surface);
            color: var(--accent-dark);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        /* ========== ARTICLE GRID ========== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-light);
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .article-card-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-image img {
            transform: scale(1.04);
        }
        .article-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            background: rgba(26,58,92,0.9);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            backdrop-filter: blur(4px);
            letter-spacing: 0.02em;
        }
        .article-card-body {
            padding: 20px 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-body h3 a {
            color: inherit;
        }
        .article-card-body h3 a:hover {
            color: var(--primary-light);
        }
        .article-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-weak);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .article-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
        }
        .stat-icon--blue {
            background: var(--primary-surface);
            color: var(--primary);
        }
        .stat-icon--gold {
            background: var(--accent-surface);
            color: var(--accent-dark);
        }
        .stat-icon--green {
            background: #ecfdf5;
            color: #059669;
        }
        .stat-icon--purple {
            background: #f5f3ff;
            color: #7c3aed;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== TAG FILTER ========== */
        .tag-filter-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            padding: 4px 0;
        }
        .tag-filter-btn {
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            background: var(--surface);
            border: 1.5px solid var(--border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .tag-filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-surface);
        }
        .tag-filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow);
        }

        /* ========== TIPS LIST ========== */
        .tips-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .tip-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .tip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .tip-number {
            width: 44px;
            height: 44px;
            border-radius: var(--radius);
            background: var(--primary-surface);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .tip-card:nth-child(even) .tip-number {
            background: var(--accent-surface);
            color: var(--accent-dark);
        }
        .tip-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .tip-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background: var(--surface-hover);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary-surface);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .faq-item[open] {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212,168,83,0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            padding: 14px 32px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(212,168,83,0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-primary:hover {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 6px 24px rgba(255,255,255,0.25);
            transform: translateY(-2px);
        }
        .btn-cta-outline {
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255,255,255,0.4);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.08);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111827;
            color: #d1d5db;
            padding: 52px 0 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand h3 span {
            color: var(--accent-light);
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: #9ca3af;
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 0.875rem;
            color: #9ca3af;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid #1f2937;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.825rem;
            color: #6b7280;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 56px;
                --section-gap-sm: 36px;
            }
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .tips-list {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .category-banner h1 {
                font-size: 2.2rem;
            }
            .category-banner {
                padding: 60px 0 52px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 44px;
                --section-gap-sm: 30px;
                --header-height: 60px;
            }
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition);
                pointer-events: none;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 0.95rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                border-left: 3px solid var(--accent);
            }
            .nav-cta {
                margin-left: 0;
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
                border-radius: var(--radius);
                margin-top: 6px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .tips-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner {
                padding: 44px 0 40px;
            }
            .banner-search {
                max-width: 100%;
                margin: 0 10px;
            }
            .tag-filter-wrap {
                gap: 7px;
            }
            .tag-filter-btn {
                padding: 7px 15px;
                font-size: 0.825rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 34px;
                --section-gap-sm: 24px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
                margin-bottom: 8px;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .category-banner h1 {
                font-size: 1.55rem;
            }
            .category-banner .banner-subtitle {
                font-size: 0.95rem;
            }
            .banner-search input {
                padding: 12px 15px;
                font-size: 0.875rem;
            }
            .banner-search button {
                padding: 12px 18px;
                font-size: 0.875rem;
            }
            .article-card-body h3 {
                font-size: 1rem;
            }
            .tip-card {
                padding: 18px 20px;
                gap: 12px;
            }
            .tip-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-cta-primary, .btn-cta-outline {
                width: 100%;
                justify-content: center;
                max-width: 300px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }