/* roulang page: index */
:root {
            --primary: #5B6AF0;
            --primary-light: #7B8AF5;
            --primary-dark: #3D4EC4;
            --primary-glow: rgba(91,106,240,0.25);
            --accent: #F0A05B;
            --accent-light: #F5C08B;
            --accent-dark: #D4883E;
            --accent-glow: rgba(240,160,91,0.2);
            --bg: #F7F8FC;
            --bg-white: #FFFFFF;
            --bg-glass: rgba(255,255,255,0.78);
            --text: #1A1D2E;
            --text-secondary: #5A5E72;
            --text-muted: #8B8FA3;
            --border: #E4E7F0;
            --border-light: #F0F2F7;
            --shadow-sm: 0 1px 3px rgba(26,29,46,0.05);
            --shadow-md: 0 4px 16px rgba(26,29,46,0.07);
            --shadow-lg: 0 12px 40px rgba(26,29,46,0.10);
            --shadow-xl: 0 24px 64px rgba(26,29,46,0.14);
            --shadow-glow: 0 0 40px rgba(91,106,240,0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
            --spacing-5xl: 100px;
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-base: 1rem;
            --font-lg: 1.125rem;
            --font-xl: 1.25rem;
            --font-2xl: 1.5rem;
            --font-3xl: 1.875rem;
            --font-4xl: 2.25rem;
            --font-5xl: 3rem;
            --font-6xl: 3.75rem;
            --transition-fast: 0.15s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --max-width: 1200px;
            --nav-height: 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: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: var(--font-base);
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            box-shadow: var(--shadow-md);
            border-bottom: 1px solid var(--border-light);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255,255,255,0.55);
            box-shadow: 0 4px 30px rgba(26,29,46,0.06);
            margin-top: 12px;
            transition: all var(--transition-base);
        }

        .site-header.scrolled .header-inner {
            margin-top: 0;
            border-radius: 0;
            background: transparent;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            border: none;
            box-shadow: none;
        }

        @media (max-width: 768px) {
            .site-header .header-inner {
                margin-top: 8px;
                border-radius: var(--radius-lg);
                padding: 0 var(--spacing-md);
            }
            .site-header.scrolled .header-inner {
                margin-top: 0;
                border-radius: 0;
            }
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            z-index: 1001;
            white-space: nowrap;
        }

        .logo-link .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: var(--font-lg);
            font-weight: 800;
            box-shadow: 0 4px 14px var(--primary-glow);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(91,106,240,0.06);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(91,106,240,0.1);
            font-weight: 600;
        }

        .nav-links a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            font-weight: 600;
            box-shadow: 0 4px 16px var(--primary-glow);
            margin-left: var(--spacing-sm);
        }

        .nav-links a.nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 24px var(--primary-glow);
            color: #fff;
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            z-index: 1001;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: var(--font-xl);
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: rgba(91,106,240,0.08);
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                flex-direction: column;
                background: rgba(255,255,255,0.97);
                backdrop-filter: blur(30px);
                -webkit-backdrop-filter: blur(30px);
                padding: 100px var(--spacing-xl) var(--spacing-xl);
                gap: var(--spacing-sm);
                box-shadow: var(--shadow-xl);
                transition: right var(--transition-slow);
                z-index: 1000;
                border-left: 1px solid var(--border-light);
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                width: 100%;
                justify-content: center;
                padding: 14px 20px;
                font-size: var(--font-base);
                border-radius: var(--radius-md);
            }
            .nav-links a.nav-cta {
                margin-left: 0;
                margin-top: var(--spacing-md);
            }
            .mobile-menu-btn {
                display: flex;
            }
        }

        /* ===== HERO ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            background-position: center 30%;
            padding: calc(var(--nav-height) + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-4xl);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,29,46,0.55) 0%, rgba(26,29,46,0.35) 40%, rgba(26,29,46,0.6) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 140px;
            background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 750px;
            width: 100%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
            background: rgba(255,255,255,0.18);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255,255,255,0.3);
            padding: 8px 20px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 500;
            color: #fff;
            margin-bottom: var(--spacing-xl);
            letter-spacing: 0.02em;
            animation: fadeInUp 0.7s ease forwards;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #5ef08b;
            box-shadow: 0 0 10px rgba(94,240,139,0.6);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero h1 {
            font-size: var(--font-6xl);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: var(--spacing-lg);
            animation: fadeInUp 0.7s ease 0.1s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
            text-shadow: 0 2px 30px rgba(0,0,0,0.25);
        }

        .hero h1 span {
            background: linear-gradient(135deg, #fff 0%, #e0e7ff 50%, #c7d2fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: var(--font-xl);
            color: rgba(255,255,255,0.85);
            line-height: 1.7;
            margin-bottom: var(--spacing-2xl);
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            animation: fadeInUp 0.7s ease 0.2s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-buttons {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 0.7s ease 0.3s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: var(--font-base);
            font-weight: 600;
            letter-spacing: 0.01em;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 28px var(--primary-glow);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 14px 40px rgba(91,106,240,0.35);
        }

        .btn-outline {
            background: rgba(255,255,255,0.12);
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.4);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.22);
            border-color: rgba(255,255,255,0.65);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 28px var(--accent-glow);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 14px 40px rgba(240,160,91,0.3);
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: var(--font-lg);
            border-radius: var(--radius-full);
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: var(--font-4xl);
            }
            .hero p {
                font-size: var(--font-base);
            }
            .hero {
                min-height: 90vh;
                padding-top: calc(var(--nav-height) + var(--spacing-2xl));
            }
            .btn {
                padding: 12px 24px;
                font-size: var(--font-sm);
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: var(--font-base);
            }
        }

        /* ===== SECTIONS ===== */
        .section {
            padding: var(--spacing-5xl) 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-sm);
            background: rgba(91,106,240,0.08);
            padding: 6px 16px;
            border-radius: var(--radius-full);
        }

        .section-title {
            font-size: var(--font-4xl);
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.015em;
            margin-bottom: var(--spacing-md);
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: var(--font-lg);
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-3xl) 0;
            }
            .section-title {
                font-size: var(--font-2xl);
            }
            .section-subtitle {
                font-size: var(--font-base);
            }
            .section-header {
                margin-bottom: var(--spacing-2xl);
            }
        }

        /* ===== FEATURES GRID ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--accent));
            opacity: 0;
            transition: opacity var(--transition-base);
            border-radius: 0 0 var(--radius-sm) var(--radius-sm);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: transparent;
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-lg);
            font-size: var(--font-2xl);
            background: linear-gradient(135deg, rgba(91,106,240,0.1), rgba(91,106,240,0.04));
            color: var(--primary);
            transition: all var(--transition-base);
        }

        .feature-card:hover .feature-icon-wrap {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: 0 8px 24px var(--primary-glow);
        }

        .feature-card h3 {
            font-size: var(--font-xl);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text);
        }

        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.65;
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-lg);
            }
        }

        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .feature-card {
                padding: var(--spacing-xl);
            }
        }

        /* ===== CATEGORY BANNER ===== */
        .category-banner {
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            border-radius: var(--radius-xl);
            padding: var(--spacing-3xl) var(--spacing-3xl);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-2xl);
            box-shadow: var(--shadow-lg);
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,29,46,0.75) 0%, rgba(26,29,46,0.3) 100%);
            z-index: 1;
            border-radius: var(--radius-xl);
        }

        .category-banner-content {
            position: relative;
            z-index: 2;
            flex: 1;
        }

        .category-banner-content h3 {
            font-size: var(--font-3xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

        .category-banner-content p {
            font-size: var(--font-base);
            color: rgba(255,255,255,0.8);
            line-height: 1.6;
            max-width: 480px;
        }

        .category-banner-action {
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .category-banner {
                flex-direction: column;
                text-align: center;
                padding: var(--spacing-2xl) var(--spacing-lg);
                gap: var(--spacing-lg);
            }
            .category-banner-content h3 {
                font-size: var(--font-2xl);
            }
            .category-banner-content p {
                max-width: 100%;
                font-size: var(--font-sm);
            }
        }

        /* ===== CMS LIST ===== */
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-xl);
        }

        .cms-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .cms-card-image {
            height: 200px;
            background: linear-gradient(135deg, #e8ecfb, #f0f2fc);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }

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

        .cms-card:hover .cms-card-image img {
            transform: scale(1.04);
        }

        .cms-card-image .cms-img-placeholder {
            font-size: var(--font-4xl);
            color: var(--primary-light);
            opacity: 0.5;
        }

        .cms-card-body {
            padding: var(--spacing-xl);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .cms-card-tags {
            display: flex;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .cms-tag {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: rgba(91,106,240,0.08);
            color: var(--primary);
            letter-spacing: 0.03em;
        }

        .cms-tag.accent {
            background: rgba(240,160,91,0.1);
            color: var(--accent-dark);
        }

        .cms-card-title {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card-title a {
            color: inherit;
            transition: color var(--transition-fast);
        }

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

        .cms-card-desc {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
            font-size: var(--font-xs);
            color: var(--text-muted);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-light);
        }

        .cms-empty {
            text-align: center;
            padding: var(--spacing-3xl);
            color: var(--text-muted);
            font-size: var(--font-base);
            grid-column: 1 / -1;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            border: 2px dashed var(--border);
        }

        @media (max-width: 768px) {
            .cms-list-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .cms-card-image {
                height: 160px;
            }
            .cms-card-body {
                padding: var(--spacing-md);
            }
        }

        /* ===== STATS ===== */
        .stats-section {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: var(--spacing-3xl) var(--spacing-2xl);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-xl);
            text-align: center;
            border: 1px solid var(--border-light);
        }

        .stat-item {
            position: relative;
        }

        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 15%;
            height: 70%;
            width: 1px;
            background: var(--border-light);
        }

        .stat-number {
            font-size: var(--font-5xl);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: var(--spacing-sm);
        }

        .stat-number .stat-suffix {
            font-size: var(--font-2xl);
            font-weight: 600;
        }

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

        @media (max-width: 768px) {
            .stats-section {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-lg);
                padding: var(--spacing-2xl) var(--spacing-lg);
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .stat-item:nth-child(odd)::after {
                content: '';
                position: absolute;
                right: 0;
                top: 10%;
                height: 80%;
                width: 1px;
                background: var(--border-light);
                display: block;
            }
            .stat-number {
                font-size: var(--font-3xl);
            }
        }

        /* ===== STEPS ===== */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-xl);
            counter-reset: step;
        }

        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl) var(--spacing-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            counter-increment: step;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: var(--font-xl);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-lg);
            box-shadow: 0 6px 20px var(--primary-glow);
        }

        .step-card h4 {
            font-size: var(--font-lg);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text);
        }

        .step-card p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

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

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

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

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

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

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

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

        .faq-icon {
            font-size: var(--font-sm);
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 var(--spacing-xl);
            color: var(--text-secondary);
            font-size: var(--font-sm);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 var(--spacing-xl) var(--spacing-lg);
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: var(--spacing-md) var(--spacing-lg);
                font-size: var(--font-sm);
            }
            .faq-answer {
                padding: 0 var(--spacing-lg);
            }
            .faq-item.open .faq-answer {
                padding: 0 var(--spacing-lg) var(--spacing-md);
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            border-radius: var(--radius-xl);
            padding: var(--spacing-4xl) var(--spacing-3xl);
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,29,46,0.8) 0%, rgba(45,40,80,0.7) 100%);
            z-index: 1;
            border-radius: var(--radius-xl);
        }

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

        .cta-content h2 {
            font-size: var(--font-4xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.015em;
        }

        .cta-content p {
            font-size: var(--font-lg);
            color: rgba(255,255,255,0.8);
            margin-bottom: var(--spacing-2xl);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: var(--spacing-3xl) var(--spacing-lg);
                border-radius: var(--radius-lg);
            }
            .cta-content h2 {
                font-size: var(--font-2xl);
            }
            .cta-content p {
                font-size: var(--font-base);
            }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: var(--spacing-3xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-3xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-brand .footer-logo {
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .footer-brand .footer-logo .flogo-icon {
            width: 32px;
            height: 32px;
            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-weight: 800;
            font-size: var(--font-sm);
        }

        .footer-brand p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .footer-col ul li {
            margin-bottom: var(--spacing-sm);
        }

        .footer-col ul li a {
            font-size: var(--font-sm);
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: var(--spacing-lg);
            text-align: center;
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-brand .footer-logo {
                justify-content: center;
            }
        }

        /* ===== MOBILE OVERLAY ===== */
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(26,29,46,0.4);
            z-index: 999;
        }
        .mobile-overlay.show {
            display: block;
        }

        /* ===== UTILITY ANIMATIONS ===== */
        .fade-in-section {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== SCROLL TO TOP ===== */
        .scroll-top-btn {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: var(--font-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px var(--primary-glow);
            z-index: 900;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: all var(--transition-base);
        }
        .scroll-top-btn.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .scroll-top-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(91,106,240,0.4);
        }

        @media (max-width: 768px) {
            .scroll-top-btn {
                bottom: 20px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: var(--font-base);
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #5B6ABF;
            --color-primary-dark: #4A56A3;
            --color-primary-light: #7B88D4;
            --color-accent: #F0A050;
            --color-accent-light: #F8C080;
            --color-accent-glow: rgba(240, 160, 80, 0.25);
            --color-bg: #F9F7FB;
            --color-bg-alt: #F0EDF6;
            --color-surface: #FFFFFF;
            --color-surface-glass: rgba(255, 255, 255, 0.78);
            --color-text: #2C2440;
            --color-text-soft: #5E5570;
            --color-text-weak: #8A8299;
            --color-border: #E2DDEB;
            --color-border-light: #EFEBF5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 3px rgba(44, 36, 64, 0.06);
            --shadow-sm: 0 3px 10px rgba(44, 36, 64, 0.07);
            --shadow-md: 0 8px 28px rgba(44, 36, 64, 0.10);
            --shadow-lg: 0 16px 48px rgba(44, 36, 64, 0.13);
            --shadow-glow: 0 0 40px rgba(91, 106, 191, 0.18);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --nav-height: 68px;
            --container-max: 1200px;
            --container-narrow: 960px;
        }

        *,
        *::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-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

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

        ul {
            list-style: none;
        }

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

        .container-narrow {
            max-width: var(--container-narrow);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: var(--color-surface-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.94);
            box-shadow: var(--shadow-sm);
            border-bottom-color: var(--color-border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

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

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: 0;
            flex-shrink: 0;
            box-shadow: 0 0 18px rgba(91, 106, 191, 0.30);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(91, 106, 191, 0.07);
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(91, 106, 191, 0.10);
            font-weight: 600;
        }

        .nav-links a.nav-cta {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            color: #fff;
            font-weight: 600;
            padding: 9px 22px;
            box-shadow: 0 3px 14px var(--color-accent-glow);
            margin-left: 4px;
        }

        .nav-links a.nav-cta:hover {
            background: linear-gradient(135deg, #e8943e, var(--color-accent));
            color: #fff;
            box-shadow: 0 6px 22px rgba(240, 160, 80, 0.35);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 32px;
            height: 26px;
            justify-content: center;
            align-items: center;
            background: none;
            border: none;
            cursor: pointer;
            z-index: 1001;
            padding: 0;
        }

        .mobile-menu-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 3px;
            background: var(--color-text);
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .mobile-menu-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            margin-top: var(--nav-height);
            padding: 70px 0 64px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(44, 36, 64, 0.55) 0%, rgba(44, 36, 64, 0.72) 100%);
            z-index: 1;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
            z-index: 2;
        }

        .page-banner .container {
            position: relative;
            z-index: 3;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .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, 0.5);
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }

        .page-banner-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .page-banner-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 600px;
            line-height: 1.6;
        }

        .banner-meta-row {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .banner-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
        }

        .banner-meta-item .meta-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
        }

        /* ========== MAIN CONTENT LAYOUT ========== */
        .category-main {
            padding: 56px 0 40px;
            flex: 1;
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        /* ========== ARTICLE GRID ========== */
        .articles-section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .articles-section-header h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }

        .sort-tabs {
            display: flex;
            gap: 4px;
            background: var(--color-bg-alt);
            border-radius: 24px;
            padding: 3px;
        }

        .sort-tab {
            padding: 7px 16px;
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

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

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .article-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-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: 14px;
            left: 14px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            z-index: 2;
            letter-spacing: 0.02em;
        }

        .article-card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .article-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.45;
            letter-spacing: -0.01em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-body h3 a {
            color: inherit;
            transition: color var(--transition-fast);
        }
        .article-card-body h3 a:hover {
            color: var(--color-primary);
        }

        .article-card-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--color-text-weak);
            margin-top: auto;
            padding-top: 6px;
        }

        .article-card-footer .read-more {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .article-card-footer .read-more:hover {
            color: var(--color-primary-dark);
        }

        /* ========== SIDEBAR ========== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }

        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-base);
        }

        .sidebar-card:hover {
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-border-light);
        }

        .sidebar-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-soft);
            background: var(--color-bg-alt);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .sidebar-tag:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .sidebar-hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-hot-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .sidebar-hot-item:last-child {
            border-bottom: none;
        }
        .sidebar-hot-item:hover {
            padding-left: 4px;
        }

        .sidebar-hot-rank {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-accent);
            flex-shrink: 0;
            width: 28px;
            text-align: center;
            line-height: 1;
        }

        .sidebar-hot-info h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-hot-info span {
            font-size: 0.78rem;
            color: var(--color-text-weak);
            display: block;
            margin-top: 3px;
        }

        /* ========== GUIDE STEPS SECTION ========== */
        .guide-steps-section {
            padding: 56px 0 48px;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .guide-steps-section .section-title {
            text-align: center;
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .guide-steps-section .section-subtitle {
            text-align: center;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            font-size: 1rem;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            text-align: center;
            padding: 28px 18px 24px;
            border-radius: var(--radius-lg);
            background: var(--color-bg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--color-primary-light);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 16px;
            box-shadow: var(--shadow-glow);
        }

        .step-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            line-height: 1.5;
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: 60px 0 50px;
        }
        .faq-section .section-title {
            text-align: center;
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .faq-section .section-subtitle {
            text-align: center;
            color: var(--color-text-weak);
            margin-bottom: 36px;
            font-size: 1rem;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item.open {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-fast);
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-fast);
            font-size: 0.7rem;
            color: var(--color-text-weak);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--color-primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 22px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 60px 0 64px;
            background: linear-gradient(160deg, #3D3560 0%, #2C2440 40%, #1E1930 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(91, 106, 191, 0.25) 0%, transparent 70%);
            top: -80px;
            right: -60px;
            z-index: 0;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 160, 80, 0.18) 0%, transparent 70%);
            bottom: -60px;
            left: -40px;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.08rem;
            margin-bottom: 28px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--color-accent), #e8943e);
            color: #fff;
            box-shadow: 0 6px 24px rgba(240, 160, 80, 0.35);
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(240, 160, 80, 0.45);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-base);
        }
        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== PAGINATION ========== */
        .pagination-row {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 6px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            border-radius: 20px;
            padding: 0 14px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .pagination-btn:hover {
            border-color: var(--color-primary-light);
            color: var(--color-primary);
        }
        .pagination-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }
        .pagination-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E1930;
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .flogo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-banner-title {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                flex-direction: column;
                background: #fff;
                padding: 90px 28px 40px;
                gap: 6px;
                box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15);
                transition: right var(--transition-base);
                z-index: 999;
                align-items: stretch;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav-links a.nav-cta {
                margin-left: 0;
                margin-top: 10px;
                text-align: center;
                justify-content: center;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner-title {
                font-size: 1.7rem;
            }
            .page-banner-desc {
                font-size: 0.95rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .sort-tabs {
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .page-banner {
                padding: 38px 0 32px;
            }
            .page-banner-title {
                font-size: 1.4rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .banner-meta-row {
                gap: 12px;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }
            .pagination-row {
                gap: 3px;
            }
            .pagination-btn {
                min-width: 34px;
                height: 34px;
                font-size: 0.82rem;
                padding: 0 10px;
            }
        }

/* roulang page: article */
:root {
            --primary: #6d5dfc;
            --primary-light: #8b7dfd;
            --primary-soft: #e8e5ff;
            --primary-glow: rgba(109, 93, 252, 0.25);
            --accent: #f0a04b;
            --accent-light: #f7c78e;
            --accent-soft: #fff7ed;
            --accent-glow: rgba(240, 160, 75, 0.22);
            --bg: #faf9fc;
            --bg-alt: #f3f0fa;
            --surface: #ffffff;
            --surface-glass: rgba(255, 255, 255, 0.72);
            --text: #2d2a3d;
            --text-strong: #1a1728;
            --text-muted: #7a7491;
            --text-light: #a29bb8;
            --border: #e6e2f0;
            --border-light: #f0edf7;
            --shadow-sm: 0 1px 3px rgba(45, 42, 61, 0.06), 0 1px 2px rgba(45, 42, 61, 0.04);
            --shadow-md: 0 4px 16px rgba(45, 42, 61, 0.08), 0 2px 6px rgba(45, 42, 61, 0.04);
            --shadow-lg: 0 12px 40px rgba(45, 42, 61, 0.10), 0 4px 12px rgba(45, 42, 61, 0.05);
            --shadow-glow: 0 4px 24px rgba(109, 93, 252, 0.16), 0 1px 4px rgba(109, 93, 252, 0.08);
            --shadow-glow-accent: 0 4px 24px rgba(240, 160, 75, 0.18), 0 1px 4px rgba(240, 160, 75, 0.08);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-heading: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --nav-height: 68px;
            --container-max: 1180px;
            --article-max: 780px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

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

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

        body::before {
            content: '';
            position: fixed;
            top: -180px;
            left: -120px;
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(139, 125, 253, 0.09) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        body::after {
            content: '';
            position: fixed;
            bottom: -160px;
            right: -100px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(240, 160, 75, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

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

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

        a:hover {
            color: var(--primary-light);
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
        }

        .container--article {
            max-width: var(--article-max);
        }

        /* ===== HEADER / GLASS NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 40px);
            max-width: var(--container-max);
        }

        .nav-shell {
            background: var(--surface-glass);
            backdrop-filter: blur(22px) saturate(180%);
            -webkit-backdrop-filter: blur(22px) saturate(180%);
            border: 1px solid rgba(255, 255, 255, 0.55);
            border-radius: var(--radius-xl);
            box-shadow: 0 4px 30px rgba(45, 42, 61, 0.07), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            transition: box-shadow var(--transition-smooth), background var(--transition-smooth);
        }

        .nav-shell.scrolled {
            background: rgba(255, 255, 255, 0.88);
            box-shadow: 0 8px 36px rgba(45, 42, 61, 0.10), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-strong);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.82;
            color: var(--text-strong);
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, #8b7dfd 100%);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 1.15rem;
            box-shadow: var(--shadow-glow);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.94rem;
            color: var(--text);
            text-decoration: none;
            transition: all var(--transition-smooth);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 600;
        }

        .nav-links a.nav-cta {
            background: linear-gradient(135deg, var(--primary) 0%, #8b7dfd 100%);
            color: #fff;
            font-weight: 600;
            padding: 10px 22px;
            box-shadow: var(--shadow-glow);
            margin-left: 4px;
            border-radius: var(--radius-full);
        }

        .nav-links a.nav-cta:hover {
            box-shadow: 0 6px 30px rgba(109, 93, 252, 0.32), 0 2px 8px rgba(109, 93, 252, 0.14);
            transform: translateY(-1px);
            background: linear-gradient(135deg, #7b6bf8 0%, #9b8dfd 100%);
            color: #fff;
            background: linear-gradient(135deg, #7b6bf8 0%, #9b8dfd 100%);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            padding: 8px;
            cursor: pointer;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            z-index: 1001;
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--primary-soft);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* ===== BREADCRUMB ===== */
        .breadcrumb-wrap {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: 8px;
            position: relative;
            z-index: 1;
        }

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

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: var(--text-light);
            user-select: none;
            font-size: 0.75rem;
        }

        .breadcrumb .current {
            color: var(--text-strong);
            font-weight: 500;
        }

        /* ===== ARTICLE HEADER ===== */
        .article-header {
            padding: 16px 0 28px;
            position: relative;
            z-index: 1;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--accent-soft);
            color: var(--accent);
            border-radius: var(--radius-full);
            font-size: 0.84rem;
            font-weight: 600;
            margin-bottom: 16px;
            text-decoration: none;
            transition: all var(--transition-smooth);
            border: 1px solid rgba(240, 160, 75, 0.2);
        }

        .article-category-badge:hover {
            background: #ffe8d0;
            color: #d48530;
            border-color: rgba(240, 160, 75, 0.35);
        }

        .article-category-badge::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px var(--accent-glow);
        }

        .article-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 750;
            line-height: 1.25;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--text-light);
        }

        /* ===== ARTICLE FEATURED IMAGE ===== */
        .article-featured-image {
            position: relative;
            z-index: 1;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16 / 9;
            background: var(--bg-alt);
        }

        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .article-featured-image:hover img {
            transform: scale(1.02);
        }

        /* ===== ARTICLE CONTENT ===== */
        .article-content-wrap {
            position: relative;
            z-index: 1;
            padding-bottom: 40px;
        }

        .article-content {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-content h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-top: 2em;
            margin-bottom: 0.7em;
            letter-spacing: -0.01em;
            padding-bottom: 0.4em;
            border-bottom: 2px solid var(--border-light);
        }

        .article-content h3 {
            font-family: var(--font-heading);
            font-size: 1.28rem;
            font-weight: 650;
            color: var(--text-strong);
            margin-top: 1.6em;
            margin-bottom: 0.6em;
        }

        .article-content p {
            margin-bottom: 1.2em;
        }

        .article-content ul,
        .article-content ol {
            margin: 1em 0 1.4em;
            padding-left: 1.5em;
        }

        .article-content li {
            margin-bottom: 0.45em;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-soft);
            padding: 18px 24px;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.4em auto;
            box-shadow: var(--shadow-md);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
            text-decoration-color: rgba(109, 93, 252, 0.3);
            transition: text-decoration-color var(--transition-fast);
        }

        .article-content a:hover {
            text-decoration-color: var(--primary);
        }

        .article-content strong {
            color: var(--text-strong);
            font-weight: 650;
        }

        .article-content code {
            background: var(--bg-alt);
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.9em;
            font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
            color: #5c4db1;
        }

        /* ===== ARTICLE DIVIDER ===== */
        .article-divider {
            border: none;
            height: 1px;
            background: var(--border-light);
            margin: 36px 0;
            position: relative;
            z-index: 1;
        }

        .article-divider::after {
            content: '◆';
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            background: var(--bg);
            padding: 0 12px;
            color: var(--text-light);
            font-size: 0.65rem;
        }

        /* ===== RELATED POSTS ===== */
        .related-section {
            position: relative;
            z-index: 1;
            padding: 20px 0 60px;
        }

        .related-section h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            border: 1px solid var(--border-light);
            text-decoration: none;
            display: block;
            color: inherit;
        }

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

        .related-card-image {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-alt);
        }

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

        .related-card:hover .related-card-image img {
            transform: scale(1.06);
        }

        .related-card-body {
            padding: 16px 18px 20px;
        }

        .related-card-category {
            font-size: 0.78rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
        }

        .related-card-title {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 650;
            color: var(--text-strong);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }

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

        .related-card-date {
            font-size: 0.82rem;
            color: var(--text-light);
        }

        /* ===== NOT FOUND ===== */
        .not-found-wrap {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 20px 100px;
        }

        .not-found-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            opacity: 0.7;
        }

        .not-found-wrap h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }

        .not-found-wrap p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary) 0%, #8b7dfd 100%);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            text-decoration: none;
            box-shadow: var(--shadow-glow);
            transition: all var(--transition-smooth);
            font-size: 0.95rem;
        }

        .btn-back:hover {
            box-shadow: 0 6px 30px rgba(109, 93, 252, 0.32);
            transform: translateY(-1px);
            color: #fff;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            position: relative;
            z-index: 1;
            padding: 56px 0 50px;
        }

        .cta-card {
            background: linear-gradient(135deg, #6d5dfc 0%, #5548d9 40%, #4a3dc4 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: 0 20px 50px rgba(109, 93, 252, 0.22);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(240, 160, 75, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card h3 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.01em;
        }

        .cta-card p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-full);
            font-weight: 650;
            text-decoration: none;
            font-size: 0.98rem;
            transition: all var(--transition-smooth);
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.10);
        }

        .btn-cta-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.16);
            color: var(--primary);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #1e1b2e;
            color: #c9c4da;
            padding: 56px 0 28px;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .flogo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            opacity: 0.8;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 650;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: #b5afcc;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            text-align: center;
            font-size: 0.84rem;
            opacity: 0.7;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 1.8rem;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 8px;
                width: calc(100% - 20px);
            }
            .nav-shell {
                border-radius: var(--radius-lg);
                padding: 0 16px;
                height: 56px;
                --nav-height: 56px;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(30px);
                -webkit-backdrop-filter: blur(30px);
                flex-direction: column;
                padding: 100px 28px 40px;
                gap: 4px;
                transition: right var(--transition-smooth);
                box-shadow: -8px 0 40px rgba(0, 0, 0, 0.12);
                z-index: 1000;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                width: 100%;
                padding: 14px 18px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav-links a.nav-cta {
                margin-left: 0;
                text-align: center;
                justify-content: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .article-title {
                font-size: 1.45rem;
            }
            .article-content {
                font-size: 1rem;
            }
            .article-content h2 {
                font-size: 1.3rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cta-card {
                padding: 36px 22px;
            }
            .cta-card h3 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumb-wrap {
                padding-top: calc(var(--nav-height) + 28px);
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-title {
                font-size: 1.28rem;
            }
            .article-meta {
                font-size: 0.8rem;
                gap: 10px;
            }
            .article-content {
                font-size: 0.95rem;
                line-height: 1.75;
            }
            .article-content h2 {
                font-size: 1.18rem;
            }
            .article-content blockquote {
                padding: 14px 18px;
                font-size: 0.9rem;
            }
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .cta-card h3 {
                font-size: 1.2rem;
            }
            .cta-card p {
                font-size: 0.9rem;
            }
        }