/* roulang page: index */
:root {
            --primary: #0d6e5e;
            --primary-dark: #0a594c;
            --primary-light: #e6f2f0;
            --accent: #d94f42;
            --accent-light: #fdecea;
            --dark: #0f1729;
            --dark-soft: #1e293b;
            --text: #334155;
            --text-light: #64748b;
            --bg: #f8fafc;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(15, 23, 42, 0.07);
            --shadow-md: 0 12px 40px rgba(15, 23, 42, 0.12);
            --shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.16);
            --space-section: 96px;
            --space-section-sm: 60px;
            --transition: 0.25s cubic-bezier(0.33, 1, 0.68, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .container-sm {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .text-center {
            text-align: center;
        }
        .text-primary {
            color: var(--primary) !important;
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 100px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .section-head .section-tag::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }
        .section-head h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 17px;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-head.left-aligned {
            text-align: left;
        }
        .section-head.left-aligned p {
            margin: 0;
        }
        /* Header */
        .site-header {
            background: rgba(15, 23, 42, 0.96);
            backdrop-filter: blur(16px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), #18b89f);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            box-shadow: 0 4px 14px rgba(13, 110, 94, 0.4);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
            font-weight: 800;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav>ul {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a.nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 18px;
            border-radius: 100px;
            transition: all var(--transition);
            position: relative;
        }
        .main-nav a.nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .main-nav a.nav-link.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(13, 110, 94, 0.35);
        }
        .mega-trigger {
            position: relative;
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(16px);
            background: var(--white);
            border-radius: 16px;
            box-shadow: var(--shadow-md);
            padding: 24px;
            min-width: 420px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            border: 1px solid var(--border);
            z-index: 50;
        }
        .mega-panel::before {
            content: "";
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%);
            border-left: 8px solid transparent;
            border-right: 8px solid transparent;
            border-bottom: 8px solid var(--white);
        }
        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(8px);
        }
        .mega-panel .mega-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }
        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }
        .mega-panel .mega-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--text);
            transition: all 0.2s;
        }
        .mega-panel .mega-item:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mega-panel .mega-item .mega-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: auto;
        }
        .header-search {
            position: relative;
        }
        .header-search input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 100px;
            padding: 10px 40px 10px 18px;
            color: #fff;
            font-size: 14px;
            width: 220px;
            transition: all var(--transition);
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .header-search input:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.15);
            width: 260px;
        }
        .header-search .search-btn {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        .header-search .search-btn:hover {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            color: #fff;
            font-size: 22px;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        /* Mobile Nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 320px;
            height: 100vh;
            background: var(--dark);
            z-index: 200;
            padding: 30px;
            box-shadow: -20px 0 50px rgba(0, 0, 0, 0.3);
            transform: translateX(100%);
            transition: transform 0.4s cubic-bezier(0.33, 1, 0.68, 1);
        }
        .mobile-nav.open {
            transform: translateX(0);
        }
        .mobile-nav .mobile-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 30px;
            color: #fff;
            font-weight: 700;
            font-size: 20px;
        }
        .mobile-nav .mobile-close {
            position: absolute;
            top: 18px;
            right: 18px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 20px;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav ul li {
            margin-bottom: 6px;
        }
        .mobile-nav ul a {
            display: block;
            padding: 14px 16px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            font-weight: 500;
            border-radius: 12px;
        }
        .mobile-nav ul a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .mobile-nav ul a.active {
            background: var(--primary);
            color: #fff;
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 150;
            backdrop-filter: blur(4px);
        }
        .mobile-overlay.open {
            display: block;
        }
        /* Hero */
        .hero {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.72)),
                url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            color: #fff;
            padding: 120px 0 100px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(13, 110, 94, 0.3), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
        }
        .hero-badge .pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4ade80;
            box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
            }
            70% {
                box-shadow: 0 0 0 14px rgba(74, 222, 128, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
            }
        }
        .hero h1 {
            font-size: clamp(34px, 5vw, 58px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
            max-width: 720px;
        }
        .hero h1 span {
            color: var(--primary);
            background: linear-gradient(135deg, var(--primary), #18b89f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin-bottom: 36px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 30px;
            border-radius: 100px;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(13, 110, 94, 0.4);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(13, 110, 94, 0.5);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }
        .btn-light {
            background: #fff;
            color: var(--dark);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 60px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            position: relative;
            z-index: 2;
        }
        .hero-stat {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 20px 24px;
            backdrop-filter: blur(8px);
        }
        .hero-stat .hero-stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat .hero-stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        /* Main */
        .main {
            padding: 0 0 80px;
        }
        .section {
            padding: var(--space-section) 0;
        }
        /* Intro Section */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }
        .intro-media {
            position: relative;
        }
        .intro-media .main-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }
        .intro-media .media-badge {
            position: absolute;
            bottom: -18px;
            left: -18px;
            background: var(--white);
            border-radius: 14px;
            padding: 16px 24px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .intro-media .media-badge .badge-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .intro-media .media-badge .badge-text {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.4;
        }
        .intro-media .media-badge .badge-text strong {
            display: block;
            font-size: 16px;
            color: var(--dark);
        }
        .intro-content .intro-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 20px;
        }
        .intro-content .intro-desc {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .intro-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 32px;
        }
        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            font-size: 15px;
            color: var(--text);
        }
        .intro-list li .list-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 4px;
        }
        /* Features / Core */
        .features-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 32px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .feature-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            transition: all 0.3s;
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        /* Category Cards */
        .categories-grid {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .category-card {
            display: flex;
            align-items: center;
            gap: 32px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            padding: 0;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .category-card .category-img {
            width: 280px;
            flex-shrink: 0;
            min-height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card .category-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .category-card:hover .category-img img {
            transform: scale(1.05);
        }
        .category-card .category-content {
            padding: 32px 32px 32px 0;
            flex: 1;
        }
        .category-card .category-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 12px;
        }
        .category-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .category-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .category-card .category-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-card .category-more:hover {
            gap: 12px;
        }
        /* Article List / Content List */
        .content-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .content-section::before {
            content: "";
            position: absolute;
            top: -200px;
            right: -200px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(13, 110, 94, 0.4), transparent 70%);
            border-radius: 50%;
        }
        .content-section .section-head h2 {
            color: #fff;
        }
        .content-section .section-head p {
            color: rgba(255, 255, 255, 0.6);
        }
        .content-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }
        .content-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 28px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .content-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .content-item .content-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .content-item .content-tag {
            background: var(--primary);
            color: #fff;
            padding: 3px 10px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
        }
        .content-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            transition: color 0.3s;
        }
        .content-item:hover h3 {
            color: var(--primary);
        }
        .content-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-item .content-link {
            margin-top: auto;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .content-item:hover .content-link {
            color: var(--primary);
            gap: 10px;
        }
        /* Timeline / Process */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }
        .process-steps::before {
            content: "";
            position: absolute;
            top: 34px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--border), var(--border), var(--primary));
            z-index: 0;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .process-step .step-icon {
            width: 68px;
            height: 68px;
            background: var(--dark);
            color: #fff;
            border: 3px solid var(--bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 22px;
            position: relative;
            box-shadow: var(--shadow);
        }
        .process-step .step-icon .step-num {
            position: absolute;
            top: -6px;
            right: -6px;
            width: 24px;
            height: 24px;
            background: var(--accent);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            padding: 0 10px;
        }
        /* Statistics */
        .stats-band {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 60px 0;
            border-radius: 24px;
            position: relative;
            overflow: hidden;
        }
        .stats-band::after {
            content: "";
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .stats-grid .stat-num {
            font-size: 42px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .stats-grid .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }
        /* Steps / CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.82)),
                url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
            border-radius: 24px;
            padding: 80px 60px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-item details {
            padding: 24px 28px;
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--dark);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
            transition: transform 0.3s;
        }
        .faq-item details[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-item .faq-answer {
            padding: 16px 0 0;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }
        /* Footer */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
            position: relative;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 24px;
            max-width: 300px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            transition: all 0.3s;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul a {
            font-size: 14px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s;
        }
        .footer-col ul a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .footer-col ul a::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 14px;
        }
        .footer-contact li .contact-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 24px;
        }
        .footer-bottom .footer-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom .footer-links a:hover {
            color: #fff;
        }
        /* Article Page */
        .article-banner {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.75)),
                url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
            padding: 70px 0 60px;
            color: #fff;
        }
        .article-banner .breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }
        .article-banner .breadcrumb a:hover {
            color: #fff;
        }
        .article-banner .breadcrumb .separator {
            opacity: 0.5;
        }
        .article-banner h1 {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.35;
            max-width: 800px;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-body-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            padding: 60px 0;
        }
        .article-content {
            background: var(--white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-content .article-lead {
            font-size: 17px;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 24px;
            padding: 16px 20px;
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 10px 10px 0;
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin: 36px 0 16px;
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--dark);
            margin: 28px 0 12px;
        }
        .article-content ul {
            margin: 20px 0;
            padding: 0;
        }
        .article-content ul li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: 15px;
            line-height: 1.8;
        }
        .article-content ul li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }
        .article-sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px;
        }
        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
        }
        .sidebar-card .sidebar-list li {
            margin-bottom: 10px;
        }
        .sidebar-card .sidebar-list a {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }
        .sidebar-card .sidebar-list a:hover {
            color: var(--primary);
            transform: translateX(2px);
        }
        .sidebar-card .sidebar-list .bracket {
            color: var(--primary);
            font-weight: 700;
        }
        .sidebar-cta {
            background: var(--dark);
            color: #fff;
        }
        .sidebar-cta h3 {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.1);
        }
        .sidebar-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
        }
        .pagination a {
            min-width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text);
            background: var(--white);
            transition: all 0.3s;
        }
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination a.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        /* Category Page */
        .category-banner {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.75)),
                url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
            padding: 80px 0 70px;
            color: #fff;
        }
        .category-banner .category-badge {
            display: inline-block;
            background: rgba(217, 79, 66, 0.9);
            color: #fff;
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .category-banner h1 {
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 900;
            margin-bottom: 16px;
            line-height: 1.25;
            max-width: 760px;
        }
        .category-banner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.8;
        }
        .category-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
            background: var(--white);
            border: 1px solid var(--border);
            padding: 16px 20px;
            border-radius: 14px;
            margin-top: -24px;
            position: relative;
            z-index: 5;
            box-shadow: var(--shadow);
        }
        .category-toolbar .toolbar-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
        }
        .category-toolbar .toolbar-count {
            font-size: 13px;
            color: var(--text-light);
        }
        .category-toolbar .toolbar-count span {
            font-weight: 700;
            color: var(--primary);
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .category-post-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .category-post-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .category-post-card .post-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            overflow: hidden;
            position: relative;
        }
        .category-post-card .post-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .category-post-card:hover .post-img img {
            transform: scale(1.06);
        }
        .category-post-card .post-img .post-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(217, 79, 66, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
        }
        .category-post-card .post-body {
            padding: 24px 24px 28px;
        }
        .category-post-card .post-meta {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
            display: flex;
            gap: 16px;
        }
        .category-post-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .category-post-card h3 a {
            color: var(--dark);
        }
        .category-post-card h3 a:hover {
            color: var(--primary);
        }
        .category-post-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
            .process-steps::before {
                display: none;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .category-card .category-img {
                width: 220px;
            }
            .article-body-wrap {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1;
                min-width: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 60px;
            }
            .container {
                padding: 0 20px;
            }
            .main-nav {
                display: none;
            }
            .header-search {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .hero {
                padding: 80px 0 70px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .content-list {
                grid-template-columns: 1fr;
            }
            .category-card {
                flex-direction: column;
                align-items: stretch;
            }
            .category-card .category-img {
                width: 100%;
                min-height: 200px;
                aspect-ratio: 16/9;
            }
            .category-card .category-content {
                padding: 24px;
                padding-top: 0;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 50px 30px;
            }
            .cta-section h2 {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-buttons .btn {
                justify-content: center;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-stat {
                padding: 14px 16px;
            }
            .hero-stat .hero-stat-num {
                font-size: 24px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .process-step {
                max-width: 260px;
                margin: 0 auto;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .article-content {
                padding: 24px 20px;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom .footer-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: 16px;
            }
        }

/* roulang page: article */
:root{
--primary:#0a1f44;
--primary-dark:#060f26;
--primary-light:#1b3a6b;
--accent:#e63e2e;
--accent-hover:#c92a1c;
--accent-light:rgba(230,62,46,.1);
--bg:#f4f6fb;
--bg-deep:#0a1428;
--surface:#ffffff;
--surface-dark:#0d1f3c;
--text:#1a2332;
--text-muted:#6b7a90;
--border:#e3e8f0;
--radius:16px;
--radius-sm:10px;
--radius-lg:24px;
--shadow:0 8px 30px rgba(10,31,68,.08);
--shadow-lg:0 20px 50px rgba(10,31,68,.15);
--transition:all .3s cubic-bezier(.25,.46,.45,.94);
--container:1200px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;transition:var(--transition);text-align:center;line-height:1.2;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 24px rgba(230,62,46,.3)}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 12px 32px rgba(230,62,46,.4)}
.btn-outline{border:2px solid rgba(255,255,255,.65);color:#fff;background:transparent;backdrop-filter:blur(4px)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-outline-dark{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline-dark:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--border);box-shadow:0 4px 20px rgba(10,31,68,.04);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 6px 30px rgba(10,31,68,.1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 6px 18px rgba(10,31,68,.25)}
.logo-text{font-size:19px;font-weight:800;color:var(--primary-dark);letter-spacing:.5px}
.logo-text em{font-style:normal;color:var(--accent)}
.main-nav{display:flex;align-items:center}
.main-nav>ul{display:flex;align-items:center;gap:6px}
.main-nav .nav-link{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-size:15px;font-weight:500;color:var(--text);transition:var(--transition);position:relative}
.main-nav .nav-link:hover{background:var(--accent-light);color:var(--accent)}
.main-nav .nav-link.active{background:var(--primary);color:#fff;font-weight:600}
.main-nav .nav-link.active:hover{background:var(--primary);color:#fff}
.mega-trigger{position:relative}
.mega-panel{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(10px);width:420px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:24px;opacity:0;visibility:hidden;transition:var(--transition);z-index:100;border:1px solid var(--border)}
.mega-trigger:hover .mega-panel,.mega-trigger:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega-title{font-size:13px;font-weight:700;color:var(--text-muted);letter-spacing:2px;text-transform:uppercase;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
.mega-title::before{content:'';width:4px;height:16px;border-radius:4px;background:var(--accent)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mega-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-sm);background:var(--bg);border:1px solid transparent;transition:var(--transition);font-size:14px;font-weight:500;color:var(--text)}
.mega-item:hover{background:var(--accent-light);border-color:var(--accent);color:var(--accent);transform:translateX(4px)}
.mega-icon{width:32px;height:32px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}
.header-actions{display:flex;align-items:center;gap:16px}
.header-search{display:flex;align-items:center;background:var(--bg);border-radius:999px;padding:4px 6px 4px 18px;border:1px solid transparent;transition:var(--transition);width:220px}
.header-search:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(230,62,46,.12)}
.header-search input{flex:1;font-size:14px;padding:8px 0;color:var(--text);min-width:0}
.header-search input::placeholder{color:var(--text-muted)}
.search-btn{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);font-size:14px}
.search-btn:hover{background:var(--accent);transform:rotate(90deg)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;background:var(--bg);color:var(--primary);font-size:18px;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}
.menu-toggle:hover{background:var(--accent);color:#fff}

/* ===== Article Banner ===== */
.article-banner{position:relative;background:linear-gradient(135deg,rgba(6,15,38,.94),rgba(10,31,68,.88)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:72px 0 56px;color:#fff;overflow:hidden}
.article-banner::before{content:'';position:absolute;top:-60px;right:-40px;width:260px;height:260px;border-radius:50%;background:rgba(230,62,46,.2);filter:blur(60px)}
.article-banner::after{content:'';position:absolute;bottom:-80px;left:30%;width:200px;height:200px;border-radius:50%;background:rgba(59,130,246,.15);filter:blur(50px)}
.article-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;margin-bottom:24px;color:rgba(255,255,255,.65)}
.breadcrumb a{color:rgba(255,255,255,.8);transition:var(--transition)}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-size:10px;opacity:.5}
.article-banner-title{font-size:38px;line-height:1.3;font-weight:800;max-width:760px;letter-spacing:-.5px;margin-bottom:20px;text-shadow:0 2px 20px rgba(0,0,0,.2)}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;font-size:14px;color:rgba(255,255,255,.75)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:8px}
.article-meta .meta-item i{color:var(--accent)}
.article-meta .meta-cat{background:rgba(230,62,46,.25);border:1px solid rgba(230,62,46,.4);padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;color:#fff}

/* ===== Article Layout ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;padding:48px 0 72px}
.article-main{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.article-body{padding:44px 48px}
.article-entry{font-size:16px;line-height:1.9;color:var(--text)}
.article-entry>p{margin-bottom:22px}
.article-entry h2{font-size:26px;font-weight:700;color:var(--primary-dark);margin:38px 0 16px;padding-left:16px;border-left:4px solid var(--accent);line-height:1.4}
.article-entry h3{font-size:20px;font-weight:700;color:var(--primary);margin:30px 0 12px;line-height:1.4}
.article-entry ul{margin:0 0 22px;padding:0;list-style:none}
.article-entry ul li{position:relative;padding-left:24px;margin-bottom:10px}
.article-entry ul li::before{content:'';position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:2px;background:var(--accent);transform:rotate(45deg)}
.article-entry ol{margin:0 0 22px;padding-left:20px;list-style:decimal}
.article-entry ol li{margin-bottom:10px;padding-left:4px}
.article-entry blockquote{margin:28px 0;padding:24px 28px;background:var(--bg);border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-muted);font-size:15px;position:relative}
.article-entry blockquote p{margin:0}
.article-entry a{color:var(--accent);border-bottom:1px solid rgba(230,62,46,.3)}
.article-entry a:hover{border-bottom-color:var(--accent)}
.article-entry img{border-radius:var(--radius);box-shadow:var(--shadow);margin:24px 0}
.article-entry strong{color:var(--primary-dark);font-weight:700}
.article-entry table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-entry table th{background:var(--primary);color:#fff;padding:12px 16px;text-align:left;font-weight:600}
.article-entry table td{padding:12px 16px;border-bottom:1px solid var(--border)}
.article-entry table tr:nth-child(even){background:var(--bg)}
.article-not-found{padding:60px 40px;text-align:center;min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}
.article-not-found .nf-icon{width:80px;height:80px;border-radius:50%;background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:32px;margin-bottom:8px}
.article-not-found h2{font-size:28px;color:var(--primary-dark)}
.article-not-found p{color:var(--text-muted);max-width:360px}
.article-tags{padding:20px 48px 36px;border-top:1px solid var(--border);display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.article-tags .tag-label{font-size:14px;color:var(--text-muted);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.article-tags .tag{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;background:var(--bg);border-radius:999px;font-size:13px;font-weight:500;color:var(--text);border:1px solid var(--border);transition:var(--transition)}
.article-tags .tag:hover{background:var(--accent-light);border-color:var(--accent);color:var(--accent)}

/* ===== Sidebar ===== */
.article-sidebar{display:flex;flex-direction:column;gap:24px}
.side-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.side-card-img{position:relative;height:120px;overflow:hidden}
.side-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.side-card:hover .side-card-img img{transform:scale(1.08)}
.side-card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,20,40,.85))}
.side-card-title{position:absolute;bottom:14px;left:20px;right:20px;z-index:2;color:#fff;font-size:18px;font-weight:700;line-height:1.4}
.side-card-title i{color:var(--accent);margin-right:6px}
.side-card-body{padding:24px}
.side-list li{border-bottom:1px solid var(--border);padding:12px 0;transition:var(--transition)}
.side-list li:last-child{border-bottom:none;padding-bottom:0}
.side-list li:first-child{padding-top:0}
.side-list a{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text);font-weight:500}
.side-list a i{width:28px;height:28px;border-radius:8px;background:var(--bg);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0;transition:var(--transition)}
.side-list a:hover{color:var(--accent);transform:translateX(4px)}
.side-list a:hover i{background:var(--accent);color:#fff}
.side-card-cta{background:var(--primary);border-radius:var(--radius);padding:28px 24px;text-align:center;color:#fff}
.side-card-cta .cta-icon{width:56px;height:56px;border-radius:16px;background:rgba(255,255,255,.15);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 16px;border:1px solid rgba(255,255,255,.25)}
.side-card-cta h3{font-size:18px;margin-bottom:8px}
.side-card-cta p{font-size:14px;color:rgba(255,255,255,.75);margin-bottom:20px}
.side-card-cta .btn{width:100%}
.side-card-info{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.side-card-info h3{font-size:16px;font-weight:700;color:var(--primary-dark);display:flex;align-items:center;gap:8px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.side-card-info h3 i{color:var(--accent)}
.info-row{display:flex;gap:12px;padding:8px 0;font-size:14px;align-items:flex-start}
.info-row .info-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:8px;flex-shrink:0}
.info-row span{color:var(--text-muted);line-height:1.6}

/* ===== Related Section ===== */
.related-section{background:var(--surface);border-top:1px solid var(--border);padding:72px 0}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:40px;gap:20px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:2px;text-transform:uppercase;margin-bottom:8px}
.section-eyebrow::before{content:'';width:24px;height:3px;border-radius:3px;background:var(--accent)}
.section-title{font-size:32px;font-weight:800;color:var(--primary-dark);line-height:1.3;letter-spacing:-.5px}
.section-sub{color:var(--text-muted);margin-top:8px;font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{background:var(--bg);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);display:block}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.related-card-img{position:relative;height:180px;overflow:hidden}
.related-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.related-card:hover .related-card-img img{transform:scale(1.08)}
.related-card-img .related-cat{position:absolute;top:14px;left:14px;z-index:2;background:rgba(10,20,40,.8);backdrop-filter:blur(8px);color:#fff;font-size:12px;font-weight:600;padding:4px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.2)}
.related-card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(10,20,40,.45))}
.related-card-body{padding:22px}
.related-card-body h3{font-size:17px;font-weight:700;color:var(--primary-dark);line-height:1.5;margin-bottom:8px;transition:var(--transition)}
.related-card:hover .related-card-body h3{color:var(--accent)}
.related-card-body p{font-size:14px;color:var(--text-muted);line-height:1.6;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--text-muted)}

/* ===== FAQ Section ===== */
.faq-section{padding:80px 0}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:14px;border:1px solid var(--border);overflow:hidden;transition:var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-lg)}
.faq-item.open{border-color:rgba(230,62,46,.3)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:22px 26px;cursor:pointer;font-size:16px;font-weight:600;color:var(--primary-dark);text-align:left;transition:var(--transition)}
.faq-question:hover{color:var(--accent)}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--bg);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition);flex-shrink:0}
.faq-item.open .faq-icon{background:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.25,.46,.45,.94);padding:0 26px}
.faq-item.open .faq-answer{max-height:500px;padding:0 26px 22px}
.faq-answer p{color:var(--text-muted);font-size:15px;line-height:1.8;padding-top:10px;border-top:1px solid var(--border)}

/* ===== CTA Section ===== */
.cta-section{position:relative;padding:0 0 80px}
.cta-box{position:relative;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius-lg);padding:56px 60px;overflow:hidden;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-box::before{content:'';position:absolute;top:-80px;right:-40px;width:280px;height:280px;border-radius:50%;background:rgba(230,62,46,.3);filter:blur(60px)}
.cta-box::after{content:'';position:absolute;bottom:-100px;left:20%;width:200px;height:200px;border-radius:50%;background:rgba(59,130,246,.2);filter:blur(50px)}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:32px;font-weight:800;margin-bottom:12px;line-height:1.3}
.cta-content p{font-size:16px;color:rgba(255,255,255,.8);max-width:520px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}

/* ===== Footer ===== */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.7);padding:72px 0 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-logo{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;color:#fff;margin-bottom:20px}
.footer-logo .logo-icon{background:linear-gradient(135deg,var(--accent),var(--accent-hover));box-shadow:0 8px 24px rgba(230,62,46,.3)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;margin-bottom:24px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.7);display:flex;align-items:center;justify-content:center;font-size:16px;transition:var(--transition);border:1px solid rgba(255,255,255,.06)}
.footer-social a:hover{background:var(--accent);color:#fff;transform:translateY(-3px);box-shadow:0 8px 20px rgba(230,62,46,.35)}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:24px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:'';position:absolute;left:0;bottom:0;width:32px;height:3px;border-radius:3px;background:var(--accent)}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{color:rgba(255,255,255,.6);font-size:14px;transition:var(--transition);display:inline-block}
.footer-col ul a:hover{color:#fff;transform:translateX(4px)}
.footer-contact li{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:rgba(255,255,255,.6);margin-bottom:14px;line-height:1.6}
.contact-icon{width:32px;height:32px;border-radius:10px;background:rgba(255,255,255,.08);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;margin-top:2px}
.footer-bottom{padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}

/* ===== Responsive ===== */
@media (max-width:1024px){
.header-search{width:180px}
.article-layout{grid-template-columns:1fr}
.article-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.related-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
.header-inner{height:64px}
.main-nav{position:fixed;top:64px;left:0;right:0;background:var(--surface);flex-direction:column;padding:20px 24px;box-shadow:var(--shadow-lg);transform:translateY(-120%);transition:transform .4s cubic-bezier(.25,.46,.45,.94);border-bottom:1px solid var(--border);align-items:flex-start}
.main-nav.open{transform:translateY(0)}
.main-nav>ul{flex-direction:column;width:100%;gap:4px}
.main-nav .nav-link{width:100%;justify-content:flex-start;padding:14px 16px}
.mega-panel{position:static;transform:none;opacity:1;visibility:visible;width:100%;box-shadow:none;margin-top:8px;border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.mega-trigger:hover .mega-panel,.mega-trigger:focus-within .mega-panel{transform:none}
.mega-grid{grid-template-columns:1fr 1fr}
.menu-toggle{display:flex}
.header-search{width:44px;background:var(--bg);padding:4px;justify-content:center}
.header-search input{display:none}
.header-search:focus-within{width:200px;position:absolute;right:60px}
.header-search:focus-within input{display:block}
.article-banner{padding:56px 0 44px}
.article-banner-title{font-size:28px}
.article-body{padding:28px 24px}
.article-tags{padding:16px 24px 28px}
.article-entry h2{font-size:22px}
.related-section{padding:56px 0}
.section-title{font-size:26px}
.related-grid{grid-template-columns:1fr}
.cta-section{padding-bottom:56px}
.cta-box{padding:40px 32px;flex-direction:column;align-items:flex-start}
.cta-actions{width:100%}
.cta-actions .btn{flex:1}
.footer-grid{grid-template-columns:1fr;gap:36px}
.faq-section{padding:56px 0}
}
@media (max-width:520px){
.container{padding:0 16px}
.article-banner-title{font-size:24px}
.article-meta{gap:10px;flex-direction:column;align-items:flex-start}
.article-sidebar{grid-template-columns:1fr}
.related-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.cta-box{padding:32px 24px}
.cta-content h2{font-size:24px}
.cta-actions{flex-direction:column}
.cta-actions .btn{width:100%}
.mega-grid{grid-template-columns:1fr}
.article-entry{font-size:15px;line-height:1.85}
.article-entry h2{font-size:20px;padding-left:12px}
.article-body{padding:24px 18px}
.section-title{font-size:23px}
.related-card-body h3{font-size:16px}
}

/* roulang page: category1 */
:root{
  --primary:#0b1a33;
  --primary-light:#14294d;
  --primary-soft:#eef2f8;
  --accent:#e64234;
  --accent-light:#ff6b5e;
  --accent-soft:#fff0ef;
  --bg:#f6f8fb;
  --white:#ffffff;
  --text:#1a2533;
  --muted:#6b7a8f;
  --muted-2:#8fa2b8;
  --border:#e2e8f0;
  --border-dark:#1f3a5f;
  --radius:16px;
  --radius-sm:10px;
  --radius-xs:6px;
  --shadow:0 8px 32px rgba(0,0,0,.07);
  --shadow-lg:0 20px 56px rgba(0,0,0,.12);
  --shadow-accent:0 10px 30px rgba(230,66,52,.25);
  --spacer:88px;
  --spacer-md:56px;
  --spacer-sm:32px;
  --font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block}
input,button,textarea{font-family:inherit;font-size:inherit;border:none;outline:none}
ul,ol{list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--spacer) 0}
.section-sm{padding:var(--spacer-md) 0}
.primary-color{color:var(--accent)}

.text-center{text-align:center}
.section-header{margin-bottom:44px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:var(--accent);
  font-size:13px;font-weight:600;padding:6px 16px;
  border-radius:40px;letter-spacing:.5px;margin-bottom:16px;
}
.section-tag i{font-size:14px}
.section-title{font-size:clamp(26px,3.4vw,38px);line-height:1.3;color:var(--primary);font-weight:700}
.section-sub{color:var(--muted);font-size:16px;max-width:680px;margin-top:12px}
.page-header{padding:var(--spacer) 0 var(--spacer-md)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 32px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;
  cursor:pointer;transition:var(--transition);border:2px solid transparent;line-height:1.2;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-accent)}
.btn-primary:hover{background:#c92f24;transform:translateY(-2px);box-shadow:0 14px 36px rgba(230,66,52,.35)}
.btn-primary:active{transform:translateY(0)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary);border-color:#fff}
.btn-white:hover{background:var(--primary-soft);transform:translateY(-2px)}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:40px;background:var(--primary-soft);color:var(--primary);
  white-space:nowrap;
}
.badge-accent{background:var(--accent);color:#fff}
.badge-outline{border:1px solid var(--border);background:#fff;color:var(--muted)}

/* ============ Header ============ */
.site-header{
  background:var(--primary);position:sticky;top:0;z-index:1000;
  box-shadow:0 4px 24px rgba(0,0,0,.18);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.logo-icon{
  width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#ff8a5c);
  display:flex;align-items:center;justify-content:center;font-size:17px;color:#fff;
  box-shadow:0 4px 14px rgba(230,66,52,.4);
}
.logo-text{font-size:20px;font-weight:700;letter-spacing:.5px;color:#fff;white-space:nowrap}
.main-nav{margin-left:auto;margin-right:8px}
.main-nav>ul{display:flex;align-items:center;gap:6px}
.main-nav>ul>li>a{
  display:flex;align-items:center;gap:7px;color:rgba(255,255,255,.78);
  font-size:15px;font-weight:500;padding:10px 16px;border-radius:var(--radius-sm);
  transition:var(--transition);
}
.main-nav>ul>li>a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav>ul>li>a.active{color:#fff;background:rgba(230,66,52,.9);box-shadow:0 4px 12px rgba(230,66,52,.3)}

.mega-trigger{position:relative}
.mega-panel{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);
  background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:22px;width:460px;opacity:0;visibility:hidden;transition:var(--transition);z-index:200;
  border-top:3px solid var(--accent);
}
.mega-trigger:hover .mega-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.mega-title::before{content:"";width:4px;height:14px;background:var(--accent);border-radius:4px}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mega-item{
  display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--bg);transition:var(--transition);border:1px solid transparent;
}
.mega-item:hover{background:#fff;border-color:var(--border);box-shadow:var(--shadow);transform:translateY(-2px)}
.mega-icon{
  width:36px;height:36px;border-radius:8px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.mega-item:nth-child(2) .mega-icon{background:var(--accent)}
.mega-item:nth-child(3) .mega-icon{background:#4a90d9}
.mega-item:nth-child(4) .mega-icon{background:#2bb673}
.mega-item{font-size:14px;color:var(--text)}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-search{position:relative;display:flex;align-items:center}
.header-search input{
  width:180px;height:38px;border-radius:8px 0 0 8px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.15);padding:0 14px;color:#fff;font-size:13px;transition:var(--transition);
}
.header-search input::placeholder{color:rgba(255,255,255,.5)}
.header-search input:focus{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.35);width:200px}
.header-search .search-btn{
  width:38px;height:38px;border-radius:0 8px 8px 0;background:var(--accent);color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:var(--transition);
}
.header-search .search-btn:hover{background:#c92f24}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);color:#fff;font-size:18px;cursor:pointer;
  align-items:center;justify-content:center;transition:var(--transition);
}
.nav-toggle:hover{background:rgba(255,255,255,.2)}

/* ============ Page Banner ============ */
.page-banner{
  position:relative;padding:100px 0 64px;background:var(--primary);color:#fff;overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;opacity:.28;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,26,51,.96) 0%,rgba(11,26,51,.72) 60%,rgba(11,26,51,.4) 100%);
}
.banner-content{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.75)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.banner-title{font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:800;margin-bottom:18px;letter-spacing:.5px}
.banner-title em{font-style:normal;color:var(--accent-light)}
.banner-sub{font-size:16px;max-width:650px;color:rgba(255,255,255,.85);line-height:1.8}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.banner-tags .badge{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(6px);
}
.banner-tags .badge i{color:var(--accent-light)}

/* ============ Category Intro ============ */
.intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.intro-text .lead{font-size:18px;line-height:1.8;color:var(--text);font-weight:500;margin-bottom:16px}
.intro-text p{color:var(--muted);margin-bottom:14px;line-height:1.8}
.intro-points{margin-top:26px}
.intro-points li{display:flex;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px dashed var(--border);font-size:15px}
.intro-points li:last-child{border-bottom:none}
.intro-points i{color:var(--accent);font-size:17px;margin-top:3px}
.intro-card{
  background:var(--primary);border-radius:var(--radius);padding:32px;color:#fff;position:relative;overflow:hidden;
}
.intro-card::before{
  content:"";position:absolute;width:160px;height:160px;background:var(--accent);border-radius:50%;
  top:-60px;right:-50px;opacity:.3;
}
.intro-card h3{font-size:20px;font-weight:700;margin-bottom:18px}
.intro-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-block{background:rgba(255,255,255,.08);border-radius:12px;padding:20px;text-align:center;border:1px solid rgba(255,255,255,.1)}
.stat-block .num{font-size:32px;font-weight:800;color:#fff;line-height:1.2}
.stat-block .num i{color:var(--accent-light);font-size:24px;margin-right:4px}
.stat-block .label{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px}
.intro-card .intro-card-footer{margin-top:20px;background:rgba(255,255,255,.08);border-radius:12px;padding:14px 16px;display:flex;gap:10px;align-items:center;font-size:13px;color:rgba(255,255,255,.85)}

/* ============ Login Methods ============ */
.methods-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.method-card{
  background:var(--white);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);
  border:1px solid var(--border);transition:var(--transition);position:relative;overflow:hidden;
}
.method-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),transparent);opacity:0;transition:var(--transition);
}
.method-card:hover::after{opacity:1}
.method-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.method-icon{
  width:56px;height:56px;border-radius:14px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:20px;transition:var(--transition);
}
.method-card:hover .method-icon{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(230,66,52,.3)}
.method-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.method-card p{font-size:14px;color:var(--muted);line-height:1.7}
.method-tag{position:absolute;top:16px;right:16px}

/* ============ Guide Steps ============ */
.steps-wrap{position:relative}
.steps-wrap::before{
  content:"";position:absolute;left:28px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--accent),var(--primary-light));opacity:.25;
}
.step-item{position:relative;padding-left:80px;margin-bottom:28px}
.step-item:last-child{margin-bottom:0}
.step-num{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;
  background:var(--primary);color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(11,26,51,.25);
  z-index:2;transition:var(--transition);
}
.step-item:hover .step-num{background:var(--accent);transform:scale(1.08)}
.step-card{
  background:var(--white);border-radius:var(--radius);padding:24px 28px;
  box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition);
}
.step-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.step-card h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:6px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.7}
.step-card .step-tip{margin-top:12px;background:var(--accent-soft);border-radius:8px;padding:10px 14px;font-size:13px;color:var(--accent);display:flex;gap:8px;align-items:center}

/* ============ Safe Tips Dark Panel ============ */
.safe-panel{
  background:linear-gradient(135deg,#0b1a33 0%,#14294d 60%,#1c3a6b 100%);
  border-radius:20px;padding:48px;position:relative;overflow:hidden;
}
.safe-panel::before{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  background:var(--accent);opacity:.12;top:-120px;right:-70px;
}
.safe-panel::after{
  content:"";position:absolute;width:180px;height:180px;border-radius:50%;
  background:rgba(255,255,255,.05);bottom:-60px;left:40px;border:1px solid rgba(255,255,255,.1);
}
.safe-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-bottom:32px;position:relative;z-index:2}
.safe-header h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:700}
.safe-header h2 i{color:var(--accent-light);margin-right:10px}
.safe-badge{background:rgba(230,66,52,.2);border:1px solid rgba(230,66,52,.5);color:#ff8a7e;font-size:13px;padding:6px 16px;border-radius:30px;font-weight:600}
.safe-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;position:relative;z-index:2}
.safe-item{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:20px 22px;display:flex;gap:16px;align-items:flex-start;
  transition:var(--transition);backdrop-filter:blur(4px);
}
.safe-item:hover{background:rgba(255,255,255,.1);transform:translateX(4px)}
.safe-item .safe-icon{
  width:42px;height:42px;border-radius:10px;background:rgba(230,66,52,.2);color:var(--accent-light);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.safe-item h4{color:#fff;font-size:16px;margin-bottom:6px}
.safe-item p{color:rgba(255,255,255,.65);font-size:14px;line-height:1.7}

/* ============ Article Cards ============ */
.article-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.article-card{
  background:var(--white);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition);
  display:flex;flex-direction:column;
}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.article-media{position:relative;overflow:hidden;aspect-ratio:16/10}
.article-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.article-card:hover .article-media img{transform:scale(1.08)}
.article-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(0,0,0,.15));
}
.article-cat{
  position:absolute;top:14px;left:14px;z-index:2;background:rgba(11,26,51,.92);
  color:#fff;font-size:12px;font-weight:600;padding:5px 14px;border-radius:20px;backdrop-filter:blur(4px);
}
.article-body{flex:1;padding:22px 22px 20px;display:flex;flex-direction:column}
.article-title{font-size:16px;line-height:1.5;font-weight:700;color:var(--text);margin-bottom:10px;transition:var(--transition);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card:hover .article-title{color:var(--accent)}
.article-excerpt{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.article-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.article-meta .date{display:flex;align-items:center;gap:5px}
.article-meta .more{color:var(--accent);font-weight:600}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;transition:var(--transition);
}
.faq-item:hover{border-color:#cbd5e0;box-shadow:var(--shadow)}
.faq-item.open{border-color:var(--accent);box-shadow:var(--shadow)}
.faq-q{
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  cursor:pointer;font-size:16px;font-weight:600;color:var(--text);transition:var(--transition);
}
.faq-q:hover{color:var(--accent)}
.faq-q i{color:var(--muted);transition:transform .35s ease;flex-shrink:0}
.faq-item.open .faq-q i{color:var(--accent);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{
  padding:0 24px 22px;font-size:14px;color:var(--muted);line-height:1.8;
  border-top:1px dashed var(--border);padding-top:16px;margin-top:0;
}

/* ============ CTA ============ */
.cta-section{background:var(--primary);position:relative;overflow:hidden;color:#fff}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.15;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.4;margin-bottom:12px}
.cta-text p{font-size:15px;color:rgba(255,255,255,.75);max-width:520px}
.cta-actions{display:flex;gap:16px;flex-wrap:wrap}

/* ============ Footer ============ */
.site-footer{background:#081120;color:rgba(255,255,255,.7);padding:68px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.07)}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-logo .logo-icon{width:38px;height:38px;font-size:15px}
.footer-brand p{color:rgba(255,255,255,.55);line-height:1.8;margin-bottom:22px;max-width:300px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);
  transition:var(--transition);font-size:15px;
}
.footer-social a:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px;position:relative;padding-bottom:10px}
.footer-col h4::after{
  content:"";position:absolute;bottom:0;left:0;width:28px;height:2px;background:var(--accent);
  border-radius:2px;
}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{color:rgba(255,255,255,.55);transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.footer-col ul a::before{content:"›";color:var(--accent);font-size:15px;line-height:1}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.55);margin-bottom:12px;line-height:1.6}
.footer-contact .contact-icon{color:var(--accent);font-size:14px;margin-top:4px}
.footer-bottom{
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;
  flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .main-nav>ul>li>a{padding:10px 12px;font-size:14px}
  .header-search input{width:140px}
  .methods-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .safe-grid{grid-template-columns:1fr}
}
@media(max-width:860px){
  .header-search{display:none}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;background:var(--primary);
    padding:12px 24px;box-shadow:0 20px 50px rgba(0,0,0,.3);
    transform:translateY(-120%);visibility:hidden;transition:var(--transition);
    border-top:1px solid rgba(255,255,255,.08);
  }
  .main-nav.open{transform:translateY(0);visibility:visible}
  .main-nav>ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav>ul>li>a{padding:14px 16px;justify-content:flex-start}
  .nav-toggle{display:flex}
  .mega-panel{position:static;transform:none;opacity:1;visibility:visible;width:100%;box-shadow:none;margin-top:4px;display:none;background:rgba(255,255,255,.05)}
  .mega-trigger:hover .mega-panel{transform:none;display:block}
  .mega-panel{background:transparent;padding:8px 0 8px 20px;border-top:none}
  .mega-title{color:rgba(255,255,255,.6);font-size:13px}
  .mega-grid{grid-template-columns:1fr}
  .mega-item{background:rgba(255,255,255,.05);color:#fff}
  .mega-item .mega-icon{background:rgba(255,255,255,.1);color:#fff}
  .banner-title{font-size:32px}
  .steps-wrap::before{left:24px}
  .step-item{padding-left:70px}
  .step-num{width:48px;height:48px;font-size:16px}
  .method-card{padding:24px}
  .safe-panel{padding:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;text-align:left}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:520px){
  :root{--spacer:56px;--spacer-md:36px}
  .container{padding:0 16px}
  .logo-text{font-size:17px}
  .logo-icon{width:34px;height:34px;font-size:14px}
  .banner-title{font-size:26px}
  .banner-sub{font-size:14px}
  .page-banner{padding:64px 0 44px}
  .methods-grid{grid-template-columns:1fr}
  .article-grid{grid-template-columns:1fr}
  .safe-grid{grid-template-columns:1fr}
  .step-item{padding-left:0;padding-top:70px}
  .steps-wrap::before{display:none}
  .step-num{left:50%;transform:translateX(-50%);top:0}
  .step-item:hover .step-num{transform:translateX(-50%) scale(1.08)}
  .safe-panel{padding:24px}
  .faq-q{font-size:15px;padding:16px 18px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}