/* roulang page: index */
:root {
            --primary: #00e5ff;
            --primary-dim: #0a8bab;
            --secondary: #ff7a3d;
            --bg-dark: #060d1a;
            --bg-card: #0d1829;
            --bg-hover: #16263c;
            --border: #1d2f47;
            --border-light: #2a3e5c;
            --text-light: #e8eef7;
            --text-muted: #7e93ad;
            --text-dim: #4a5d75;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --glow: 0 0 30px rgba(0, 229, 255, 0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
            --font-num: "Rajdhani", "DIN Alternate", "Helvetica Neue", sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(ellipse at 20% 50%, rgba(0, 229, 255, 0.04) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(255, 122, 61, 0.03) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

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

        a:hover {
            color: #fff;
        }

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

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 12px 28px;
            transition: var(--transition);
            border: none;
            font-size: 15px;
            letter-spacing: 0.5px;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #060d1a;
            box-shadow: 0 4px 20px rgba(0, 229, 255, 0.25);
        }

        .btn-primary-custom:hover {
            background: #fff;
            color: #060d1a;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 229, 255, 0.35);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--text-light);
            border: 1px solid var(--border-light);
            backdrop-filter: blur(4px);
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 229, 255, 0.06);
            transform: translateY(-2px);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.15);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 18px;
        }

        .section-label::before {
            content: "";
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px var(--primary);
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }

        .section-pad {
            padding: 90px 0;
        }

        /* ====== Header / Nav ====== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(6, 13, 26, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(6, 13, 26, 0.97);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            border-bottom-color: rgba(0, 229, 255, 0.08);
        }

        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand .brand-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px var(--primary);
            display: inline-block;
        }

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

        .site-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: 40px;
        }

        .nav-item {
            position: relative;
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            padding: 8px 2px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-item::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
        }

        .nav-item:hover {
            color: #fff;
        }

        .nav-item:hover::after {
            width: 100%;
        }

        .nav-item.active {
            color: var(--primary);
        }

        .nav-item.active::after {
            width: 100%;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }

        .btn-header {
            background: linear-gradient(135deg, var(--primary), #00b894);
            color: #060d1a;
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 30px;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 229, 255, 0.25);
            white-space: nowrap;
            border: none;
        }

        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 255, 0.4);
            color: #060d1a;
            background: linear-gradient(135deg, #fff, #e8f8ff);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            color: var(--text-light);
            font-size: 20px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .collapse.show {
            display: flex;
        }

        /* ====== Hero ====== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            isolation: isolate;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 13, 26, 0.97) 0%, rgba(6, 13, 26, 0.88) 50%, rgba(6, 13, 26, 0.7) 100%);
            z-index: -1;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 60%, var(--bg-dark) 100%);
            z-index: -1;
        }

        .hero-content {
            positype: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.25);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 28px;
            backdrop-filter: blur(8px);
        }

        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #59ffb3;
            box-shadow: 0 0 0 0 rgba(89, 255, 179, 0.6);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(89, 255, 179, 0.6);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(89, 255, 179, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(89, 255, 179, 0);
            }
        }

        .hero-title {
            font-size: clamp(2.4rem, 5vw, 4.2rem);
            font-weight: 900;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-title .gradient-text {
            background: linear-gradient(120deg, var(--primary) 0%, #59ffb3 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 560px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .hero-stat {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 24px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            backdrop-filter: blur(10px);
        }

        .hero-stat .stat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 229, 255, 0.15);
            color: var(--primary);
            font-size: 18px;
        }

        .hero-stat .stat-num {
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 12px;
            color: var(--text-muted);
        }

        .hero-panel {
            background: rgba(13, 24, 41, 0.85);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(20px);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }

        .hero-panel::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
        }

        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }

        .panel-header .panel-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .panel-header .panel-status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #59ffb3;
        }

        .panel-header .panel-status .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #59ffb3;
            animation: pulse 2s infinite;
        }

        .panel-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .panel-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }

        .panel-list li:hover {
            background: rgba(0, 229, 255, 0.06);
            border-color: rgba(0, 229, 255, 0.15);
        }

        .panel-list li .icon-wrap {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }

        .icon-wrap.teal {
            background: rgba(0, 229, 255, 0.12);
            color: var(--primary);
        }

        .icon-wrap.orange {
            background: rgba(255, 122, 61, 0.12);
            color: var(--secondary);
        }

        .icon-wrap.green {
            background: rgba(89, 255, 179, 0.12);
            color: #59ffb3;
        }

        .panel-list li .item-text {
            flex: 1;
        }

        .panel-list li .item-text .item-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
        }

        .panel-list li .item-text .item-sub {
            font-size: 13px;
            color: var(--text-muted);
        }

        .panel-list li .item-arrow {
            color: var(--text-dim);
            font-size: 14px;
        }

        /* ====== Stats Bar ====== */
        .stats-bar {
            background: linear-gradient(135deg, #0d1829, #101f36);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 48px 0;
            position: relative;
        }

        .stats-bar::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.3), transparent);
        }

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-block {
            text-align: center;
            padding: 20px;
        }

        .stat-block .num {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 700;
            line-height: 1;
            background: linear-gradient(135deg, var(--primary), #59ffb3);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
            margin-bottom: 10px;
        }

        .stat-block .label {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        /* ====== Features ====== */
        .features {
            position: relative;
            padding: 100px 0;
        }

        .features .section-head {
            text-align: center;
            margin-bottom: 60px;
        }

        .features .section-subtitle {
            margin: 0 auto;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-card:hover {
            background: var(--bg-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 24px;
            background: rgba(0, 229, 255, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 229, 255, 0.12);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.08);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ====== Categories ====== */
        .categories {
            padding: 100px 0;
            background: linear-gradient(180deg, rgba(13, 24, 41, 0.5), transparent);
            position: relative;
        }

        .categories::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            margin-top: 20px;
        }

        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            min-height: 400px;
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(0, 229, 255, 0.25);
        }

        .category-cover {
            position: relative;
            height: 220px;
            overflow: hidden;
        }

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

        .category-card:hover .category-cover img {
            transform: scale(1.05);
        }

        .category-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg-card) 10%, transparent 80%);
        }

        .category-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--primary);
            background: rgba(0, 229, 255, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            align-self: flex-start;
            margin-bottom: 14px;
        }

        .category-body h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .category-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 20px;
        }

        .category-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .category-link i {
            transition: transform 0.3s ease;
        }

        .category-link:hover {
            color: #fff;
        }

        .category-link:hover i {
            transform: translateX(4px);
        }

        /* ====== News Section ====== */
        .news-section {
            padding: 100px 0;
            position: relative;
        }

        .news-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .news-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            position: relative;
        }

        .news-item:hover {
            background: var(--bg-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(0, 229, 255, 0.18);
        }

        .news-item .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(0, 229, 255, 0.1);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .news-item h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .news-item h3 a {
            color: var(--text-light);
            transition: var(--transition);
        }

        .news-item h3 a:hover {
            color: var(--primary);
        }

        .news-item .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-dim);
        }

        .news-item .news-meta i {
            font-size: 13px;
            margin-right: 4px;
        }

        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 16px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 16px;
        }

        /* ====== Process Guide ====== */
        .process {
            padding: 100px 0;
            background: linear-gradient(180deg, rgba(13, 24, 41, 0.6), rgba(6, 13, 26, 0.8));
            position: relative;
        }

        .process::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.15), transparent);
        }

        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 50px;
            position: relative;
        }

        .step-grid::before {
            content: "";
            position: absolute;
            top: 48px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(90deg, var(--border), var(--primary), var(--border));
            z-index: 0;
        }

        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }

        .step-card:hover {
            background: var(--bg-hover);
            border-color: rgba(0, 229, 255, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary), #00b894);
            color: #060d1a;
            margin-bottom: 20px;
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.3);
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ====== FAQ ====== */
        .faq-section {
            padding: 100px 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 40px auto 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.2);
            background: var(--bg-hover);
        }

        .faq-item summary {
            padding: 22px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 229, 255, 0.12);
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 28px 22px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ====== CTA ====== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            isolation: isolate;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 13, 26, 0.95) 0%, rgba(6, 13, 26, 0.8) 100%);
            z-index: -1;
        }

        .cta-box {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            padding: 60px 40px;
            background: rgba(13, 24, 41, 0.8);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(16px);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ====== Footer ====== */
        .site-footer {
            padding: 70px 0 30px;
            background: #050b16;
            border-top: 1px solid var(--border);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .brand-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
        }

        .footer-about {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 360px;
        }

        .footer-links h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-links ul li a i {
            font-size: 11px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-copyright {
            font-size: 13px;
            color: var(--text-dim);
        }

        .footer-tech {
            font-size: 13px;
            color: var(--text-dim);
        }

        /* ====== Responsive ====== */
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .step-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .step-grid::before {
                display: none;
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: 60px 0;
            }

            .site-header .header-row {
                height: auto;
                min-height: 64px;
                flex-wrap: wrap;
                padding: 12px 0;
            }

            .site-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                gap: 0;
                background: rgba(6, 13, 26, 0.98);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                margin-left: 0;
                align-items: flex-start;
            }

            .site-nav.active {
                display: flex;
            }

            .nav-item {
                padding: 14px 0;
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }

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

            .nav-item::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-header {
                display: none;
            }

            .hero {
                min-height: auto;
                padding: 120px 0 60px;
                background-attachment: scroll;
            }

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

            .hero-stat {
                padding: 12px 16px;
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .category-grid {
                grid-template-columns: 1fr;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .step-grid {
                grid-template-columns: 1fr;
            }

            .cta-section {
                background-attachment: scroll;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

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

            .hero-desc {
                font-size: 1rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-panel {
                margin-top: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .stat-block .num {
                font-size: 32px;
            }

            .feature-card {
                padding: 24px 20px;
            }

            .category-card {
                min-height: auto;
            }

            .category-cover {
                height: 180px;
            }

            .category-body {
                padding: 20px;
            }

            .news-item {
                padding: 18px;
            }

            .faq-item summary {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-item .faq-answer {
                padding: 0 20px 18px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }

            .hero-stat {
                width: 100%;
            }

            .hero-stats-row {
                flex-direction: column;
            }

            .btn {
                width: 100%;
                text-align: center;
            }

            .hero-buttons {
                width: 100%;
            }

            .footer-links h4 {
                margin-bottom: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-dark: #070b14;
            --bg-deep: #0c1220;
            --bg-card: #111a2e;
            --bg-hover: #16233d;
            --primary: #00e0a0;
            --primary-rgb: 0, 224, 160;
            --secondary: #00c8ff;
            --accent: #f5b942;
            --text-main: #eaf0f8;
            --text-weak: #8b98b3;
            --border: #1e2b45;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-panel: 0 18px 50px rgba(0, 0, 0, 0.45);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --transition-base: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.75;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(7, 11, 20, 0.82);
            -webkit-backdrop-filter: blur(18px);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(30, 43, 69, 0.7);
        }

        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
            color: var(--text-main);
        }

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

        .brand-dot {
            position: relative;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, var(--primary), var(--secondary));
            box-shadow: 0 0 18px rgba(var(--primary-rgb), 0.45);
            flex-shrink: 0;
        }

        .brand-dot::after {
            content: "j9";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 11px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0;
            font-family: "Segoe UI", system-ui, sans-serif;
        }

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

        .nav-item {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }

        .nav-item::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: center;
            transition: var(--transition-base);
        }

        .nav-item:hover,
        .nav-item.active {
            color: var(--text-main);
            background: rgba(var(--primary-rgb), 0.06);
        }

        .nav-item:hover::after,
        .nav-item.active::after {
            transform: scaleX(1);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 600;
            color: #07111a;
            background: linear-gradient(135deg, var(--primary), #00b8d9);
            border-radius: 999px;
            box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.35);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.5);
            color: #07111a;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            color: var(--text-main);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            transition: var(--transition-base);
        }

        .nav-toggle:hover {
            background: rgba(var(--primary-rgb), 0.08);
            border-color: var(--primary);
        }

        @media (max-width: 768px) {
            .header-row {
                height: 64px;
            }
            .site-nav {
                position: absolute;
                top: 64px;
                right: 16px;
                left: 16px;
                flex-direction: column;
                align-items: stretch;
                background: rgba(7, 11, 20, 0.98);
                border: 1px solid var(--border);
                border-radius: var(--radius-md);
                padding: 12px;
                gap: 4px;
                transform: translateY(-12px);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition-base);
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-item {
                padding: 12px 16px;
                font-size: 15px;
            }
            .nav-item::after {
                display: none;
            }
            .nav-item.active {
                background: rgba(var(--primary-rgb), 0.1);
            }
            .btn-header {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
        }

        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(rgba(7, 11, 20, 0.7), rgba(7, 11, 20, 0.82)), url("/assets/images/backpic/back-1.png") center center / cover no-repeat;
            border-bottom: 1px solid rgba(30, 43, 69, 0.5);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            right: -100px;
            top: -100px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(var(--primary-rgb), 0.18), transparent 70%);
            pointer-events: none;
        }

        .breadcrumb-nav {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
            background: rgba(7, 11, 20, 0.5);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 24px;
        }

        .breadcrumb-nav a {
            color: var(--text-weak);
        }

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

        .breadcrumb-nav .sep {
            color: #4a5675;
        }

        .page-hero h1 {
            font-size: clamp(30px, 5vw, 50px);
            font-weight: 800;
            letter-spacing: 2px;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 6px;
        }

        .page-hero .hero-subtitle {
            font-size: clamp(18px, 3vw, 26px);
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 18px;
            display: block;
        }

        .page-hero .hero-desc {
            max-width: 660px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-weak);
        }

        .herp-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        .btn-primary-solid,
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition-base);
        }

        .btn-primary-solid {
            background: linear-gradient(135deg, var(--primary), #00b0c8);
            color: #0b1420;
            box-shadow: 0 6px 24px rgba(var(--primary-rgb), 0.35);
        }

        .btn-primary-solid:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(var(--primary-rgb), 0.5);
            color: #0b1420;
        }

        .btn-outline-light {
            border: 1px solid rgba(234, 240, 248, 0.35);
            color: var(--text-main);
        }

        .btn-outline-light:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            background: rgba(var(--primary-rgb), 0.06);
        }

        .hero-status-panel {
            position: relative;
            margin-top: 48px;
            background: rgba(12, 18, 32, 0.9);
            border: 1px solid rgba(var(--primary-rgb), 0.25);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            box-shadow: var(--shadow-panel);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            max-width: 760px;
        }

        .hero-status-panel::before {
            content: "LIVE";
            position: absolute;
            top: -10px;
            right: 24px;
            background: var(--primary);
            color: #07111a;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 3px 10px;
            border-radius: 999px;
        }

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

        .status-item .status-label {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 4px;
        }

        .status-item .status-value {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
        }

        .status-item .status-value.green {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 120px 0 60px;
            }
            .status-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .section-block {
            padding-top: 100px;
            padding-bottom: 60px;
        }

        .section-block-alt {
            background: rgba(12, 18, 32, 0.4);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--primary);
            text-transform: uppercase;
            background: rgba(var(--primary-rgb), 0.1);
            border: 1px solid rgba(var(--primary-rgb), 0.2);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .section-desc {
            max-width: 720px;
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .intro-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-panel);
        }

        .intro-media img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .intro-media:hover img {
            transform: scale(1.04);
        }

        .intro-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(7, 11, 20, 0.6), transparent 60%);
        }

        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }

        .intro-tags .tag-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .intro-tags .tag-item i {
            color: var(--primary);
        }

        @media (max-width: 992px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        .entry-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        @media (max-width: 992px) {
            .entry-cards {
                grid-template-columns: 1fr;
                max-width: 520px;
                margin-left: auto;
                margin-right: auto;
            }
        }

        .entry-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .entry-card:hover {
            transform: translateY(-8px);
            border-color: rgba(var(--primary-rgb), 0.5);
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
        }

        .entry-card .card-thumb {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .entry-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .entry-card:hover .card-thumb img {
            transform: scale(1.08);
        }

        .entry-card .card-thumb::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg-card), transparent 70%);
        }

        .entry-card .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(7, 11, 20, 0.8);
            border: 1px solid rgba(var(--primary-rgb), 0.4);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            -webkit-backdrop-filter: blur(6px);
            backdrop-filter: blur(6px);
        }

        .entry-card .card-body-custom {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .entry-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .entry-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .entry-card .card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
        }

        .entry-card .card-link {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .entry-card .card-link:hover {
            gap: 10px;
            color: var(--secondary);
        }

        .stats-panel {
            padding: 60px 0;
            background: linear-gradient(rgba(7, 11, 20, 0.82), rgba(7, 11, 20, 0.88)), url("/assets/images/backpic/back-2.png") center center / cover no-repeat;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .stats-card {
            background: rgba(12, 18, 32, 0.85);
            border: 1px solid rgba(30, 43, 69, 0.9);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition-base);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
        }

        .stats-card:hover {
            border-color: rgba(var(--primary-rgb), 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .stats-card .stats-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(var(--primary-rgb), 0.1);
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 16px;
        }

        .stats-card .stats-number {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stats-card .stats-number small {
            font-size: 16px;
            color: var(--primary);
            margin-left: 2px;
        }

        .stats-card .stats-name {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 6px;
        }

        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        .step-list {
            counter-reset: step;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .step-item {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 20px 20px;
            transition: var(--transition-base);
        }

        .step-item:hover {
            border-color: rgba(var(--primary-rgb), 0.4);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
        }

        .step-item::before {
            counter-increment: step;
            content: "0" counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 32px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.08);
            letter-spacing: 0;
            line-height: 1;
        }

        .step-item .step-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.15), rgba(0, 200, 255, 0.1));
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 14px;
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.55;
            margin: 0;
        }

        @media (max-width: 992px) {
            .step-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        .update-list {
            display: grid;
            gap: 18px;
        }

        .update-row {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            transition: var(--transition-base);
        }

        .update-row:hover {
            border-color: rgba(var(--primary-rgb), 0.4);
            background: var(--bg-hover);
            transform: translateX(6px);
        }

        .update-row .update-info {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
            min-width: 0;
        }

        .update-row .update-img {
            width: 88px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .update-row .update-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .update-row .update-content p {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
        }

        .update-row .update-tag {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--primary);
            background: rgba(var(--primary-rgb), 0.08);
            border: 1px solid rgba(var(--primary-rgb), 0.2);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 8px;
        }

        .update-row .arrow-link {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .update-row:hover .arrow-link {
            color: var(--primary);
            gap: 12px;
        }

        @media (max-width: 768px) {
            .update-row {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }
            .update-info {
                width: 100%;
            }
            .update-row .arrow-link {
                align-self: flex-end;
            }
        }

        @media (max-width: 480px) {
            .update-row .update-img {
                display: none;
            }
        }

        .safety-card {
            background: linear-gradient(135deg, rgba(245, 185, 66, 0.08), rgba(245, 185, 66, 0.02));
            border: 1px solid rgba(245, 185, 66, 0.3);
            border-radius: var(--radius-lg);
            padding: 38px 36px;
            position: relative;
            overflow: hidden;
        }

        .safety-card::before {
            content: "\f0e7";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -14px;
            top: -24px;
            font-size: 130px;
            color: rgba(245, 185, 66, 0.05);
            transform: rotate(-20deg);
        }

        .safety-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .safety-card h3 i {
            color: var(--accent);
        }

        .safety-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 24px;
        }

        .safety-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            background: rgba(7, 11, 20, 0.5);
            border-radius: var(--radius-md);
            padding: 16px;
        }

        .safety-item .num-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: rgba(245, 185, 66, 0.15);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .safety-item p {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0;
        }

        @media (max-width: 768px) {
            .safety-card {
                padding: 28px 20px;
            }
            .safety-list {
                grid-template-columns: 1fr;
            }
        }

        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-panel {
            background: var(--bg-card) !important;
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            box-shadow: none !important;
        }

        .faq-panel button {
            background: transparent !important;
            color: var(--text-main) !important;
            font-size: 16px !important;
            font-weight: 600 !important;
            padding: 20px 24px !important;
            border-radius: var(--radius-md) !important;
            box-shadow: none !important;
        }

        .faq-panel button:not(.collapsed) {
            color: var(--primary) !important;
        }

        .faq-panel .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(var(--primary-rgb), 0.1);
            color: var(--primary);
            font-size: 13px;
            margin-right: 12px;
        }

        .faq-body {
            padding: 0 24px 20px !important;
            color: var(--text-weak) !important;
            font-size: 15px !important;
            line-height: 1.75 !important;
        }

        .cta-section {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(rgba(7, 11, 20, 0.7), rgba(7, 11, 20, 0.85)), url("/assets/images/backpic/back-3.png") center center / cover no-repeat;
            text-align: center;
        }

        .cta-section .cta-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-section .cta-desc {
            max-width: 560px;
            margin: 0 auto 32px;
            color: var(--text-weak);
            font-size: 16px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        .site-footer {
            background: #06090f;
            border-top: 1px solid var(--border);
            padding-top: 56px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .footer-about {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            margin: 0;
            max-width: 360px;
        }

        .footer-links h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .footer-links a i {
            font-size: 10px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

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

        .footer-links a:hover i {
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid rgba(30, 43, 69, 0.6);
            padding: 20px 0;
            flex-wrap: wrap;
        }

        .footer-copyright {
            font-size: 13px;
            color: #5a6b88;
        }

        .footer-tech {
            font-size: 13px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 768px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --cyan: #06b6d4;
            --accent: #f59e0b;
            --dark: #0b1220;
            --dark-2: #111a2e;
            --bg: #f4f6fb;
            --surface: #ffffff;
            --text: #172033;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 12px rgba(15, 23, 42, .06);
            --shadow: 0 8px 24px rgba(15, 23, 42, .08);
            --shadow-lg: 0 20px 44px rgba(15, 23, 42, .12);
            --transition: all .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            background: none;
            border: none;
        }
        a:focus-visible,
        button:focus-visible,
        .nav-toggle:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: .5px;
            color: var(--text);
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
            flex-shrink: 0;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            margin-left: auto;
        }
        .nav-item {
            position: relative;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 28px 2px;
            letter-spacing: .3px;
            white-space: nowrap;
        }
        .nav-item::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 16px;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-item:hover {
            color: var(--primary);
        }
        .nav-item:hover::after,
        .nav-item.active::after {
            width: 100%;
        }
        .nav-item.active {
            color: var(--primary);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #4f46e5);
            border-radius: 999px;
            box-shadow: 0 8px 20px rgba(37, 99, 235, .28);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-header:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(37, 99, 235, .35);
        }
        .btn-header:active {
            transform: translateY(0);
            box-shadow: 0 6px 14px rgba(37, 99, 235, .2);
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: #e8ecf4;
        }
        .breadcrumb-bar {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 14px;
            color: var(--muted);
        }
        .breadcrumb-custom a {
            color: var(--muted);
            font-weight: 600;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .sep {
            color: #cbd5e1;
        }
        .breadcrumb-custom .active {
            color: var(--text);
            font-weight: 700;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 300px;
        }
        .article-hero {
            position: relative;
            padding: 72px 0 64px;
            background: linear-gradient(135deg, var(--dark), var(--dark-2)), url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(11, 18, 32, .72);
        }
        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .22);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            backdrop-filter: blur(6px);
            margin-bottom: 20px;
        }
        .article-title {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            margin: 0 0 22px;
            letter-spacing: .5px;
            word-break: break-word;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, .78);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .article-section {
            padding: 56px 0;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .article-cover img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .article-content {
            padding: 40px 48px;
        }
        .article-content h2 {
            margin: 2em 0 1em;
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
        }
        .article-content h3 {
            margin: 1.8em 0 .8em;
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.4em;
            font-size: 16.5px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.6em 1.4em;
        }
        .article-content li {
            margin-bottom: .6em;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg);
            padding: 16px 24px;
            border-radius: 12px;
            margin: 1.6em 0;
            color: var(--muted);
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-empty-content {
            padding: 60px 0;
            text-align: center;
            color: var(--muted);
            font-size: 16px;
            border: 2px dashed var(--border);
            border-radius: var(--radius);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 0 48px 28px;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
        }
        .tag-pill i {
            color: var(--primary);
            font-size: 11px;
        }
        .article-footer-note {
            display: flex;
            gap: 16px;
            padding: 20px 24px;
            margin: 0 48px 40px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
        }
        .article-footer-note i {
            color: var(--primary);
            font-size: 22px;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .article-footer-note p {
            margin: 0;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
        }
        .article-not-found {
            padding: 80px 40px;
            text-align: center;
        }
        .article-not-found .fa-inbox {
            font-size: 48px;
            color: var(--muted);
            margin-bottom: 16px;
        }
        .article-not-found h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--text);
        }
        .article-not-found p {
            color: var(--muted);
            margin-bottom: 24px;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border: none;
            box-shadow: 0 10px 24px rgba(37, 99, 235, .25);
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(37, 99, 235, .35);
            color: #fff;
        }
        .sidebar-widget {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }
        .status-card {
            background: linear-gradient(135deg, var(--dark), var(--dark-2));
            color: #fff;
            position: relative;
            overflow: hidden;
            border: none;
        }
        .status-card::before {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(37, 99, 235, .35);
            filter: blur(50px);
            right: -50px;
            top: -50px;
        }
        .status-light {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #22c55e;
            box-shadow: 0 0 0 6px rgba(34, 197, 94, .2);
            display: inline-block;
            animation: pulse 2s infinite;
            flex-shrink: 0;
        }
        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 4px rgba(34, 197, 94, .2);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(34, 197, 94, .08);
            }
        }
        .widget-title {
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            position: relative;
            z-index: 1;
        }
        .widget-title i {
            color: var(--primary);
        }
        .status-card .widget-title {
            color: #fff;
        }
        .status-card .widget-title i {
            color: #38bdf8;
        }
        .status-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            font-size: 14px;
            position: relative;
            z-index: 1;
        }
        .status-row:last-child {
            border: none;
        }
        .status-value {
            color: #22c55e;
            font-weight: 700;
        }
        .sidebar-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-list li {
            margin-bottom: 10px;
        }
        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: var(--bg);
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }
        .sidebar-list a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateX(4px);
        }
        .sidebar-list a i {
            width: 16px;
            color: var(--primary);
            transition: var(--transition);
        }
        .sidebar-list a:hover i {
            color: #fff;
        }
        .sidebar-cat-card {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            display: block;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-cat-card img {
            height: 110px;
            object-fit: cover;
            width: 100%;
            transition: transform .4s;
        }
        .sidebar-cat-card:hover img {
            transform: scale(1.05);
        }
        .sidebar-cat-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 20%, rgba(11, 18, 32, .85));
            display: flex;
            align-items: flex-end;
            padding: 14px;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            gap: 8px;
        }
        .warning-widget p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }
        .guide-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 64px 0;
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 2px;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-sub {
            font-size: 16px;
            color: var(--muted);
            margin: 0;
        }
        .step-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            height: 100%;
            position: relative;
            transition: var(--transition);
            overflow: hidden;
        }
        .step-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            border-radius: 0 0 6px 6px;
            opacity: 0;
            transition: var(--transition);
        }
        .step-card:hover::before {
            opacity: 1;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .step-num {
            font-size: 42px;
            font-weight: 900;
            color: var(--primary);
            opacity: .2;
            line-height: 1;
            position: absolute;
            top: 18px;
            right: 20px;
        }
        .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            box-shadow: 0 8px 20px rgba(37, 99, 235, .22);
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--text);
        }
        .step-card p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.8;
        }
        .faq-section {
            padding: 64px 0;
            background: var(--bg);
        }
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--surface);
        }
        .accordion-custom .accordion-button {
            background: var(--surface);
            color: var(--text);
            font-weight: 700;
            font-size: 16px;
            padding: 20px 24px;
            box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--primary);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            background-image: var(--bs-accordion-btn-active-icon);
            transform: var(--bs-accordion-btn-icon-transform);
        }
        .accordion-custom .accordion-body {
            color: var(--muted);
            line-height: 1.8;
            padding: 8px 24px 24px;
            font-size: 15px;
        }
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(37, 99, 235, .92), rgba(79, 70, 229, .93)), url("/assets/images/backpic/back-3.png");
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            width: 300px;
            height: 300px;
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 50%;
            top: -100px;
            left: -80px;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 50%;
            bottom: -60px;
            right: -40px;
        }
        .cta-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-text {
            max-width: 620px;
            margin: 0 auto 30px;
            font-size: 16px;
            opacity: .9;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .btn-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 999px;
            background: #fff;
            color: var(--primary);
            font-weight: 800;
            font-size: 16px;
            transition: var(--transition);
        }
        .btn-light-custom:hover {
            background: var(--dark);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 16px 36px rgba(0, 0, 0, .25);
        }
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .7);
            color: #fff;
            font-weight: 700;
            transition: var(--transition);
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            transform: translateY(-3px);
        }
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 64px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-brand .brand-dot {
            background: linear-gradient(135deg, #38bdf8, #818cf8);
            box-shadow: 0 0 0 4px rgba(56, 189, 248, .15);
        }
        .footer-about {
            font-size: 14px;
            line-height: 1.9;
            max-width: 360px;
            margin: 0;
            color: #94a3b8;
        }
        .footer-links h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #94a3b8;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 6px;
        }
        .footer-links a i {
            font-size: 10px;
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0;
            font-size: 13px;
            color: #64748b;
        }
        .footer-tech {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        @media (max-width: 992px) {
            .nav-toggle {
                display: inline-flex;
            }
            .site-nav {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                padding: 16px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 30px rgba(0, 0, 0, .08);
                transform: translateY(-16px);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                margin-left: 0;
            }
            .site-nav.show {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-item {
                width: 100%;
                padding: 12px 8px;
            }
            .nav-item::after {
                display: none;
            }
            .nav-item.active {
                background: var(--bg);
                border-radius: 10px;
                padding-left: 14px;
            }
            .header-row {
                height: 68px;
            }
            .article-title {
                font-size: 30px;
            }
            .article-content,
            .article-tags {
                padding-left: 28px;
                padding-right: 28px;
            }
            .article-footer-note {
                margin-left: 28px;
                margin-right: 28px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 52px 0 48px;
            }
            .article-title {
                font-size: 26px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-cover img {
                height: 260px;
            }
            .article-content {
                padding-left: 20px;
                padding-right: 20px;
            }
            .article-tags {
                padding-left: 20px;
                padding-right: 20px;
            }
            .article-footer-note {
                margin-left: 20px;
                margin-right: 20px;
                flex-direction: column;
                gap: 10px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .cta-title {
                font-size: 26px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-light-custom,
            .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
            .article-not-found {
                padding: 60px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-header .btn-header {
                display: none;
            }
            .brand {
                font-size: 19px;
            }
            .breadcrumb-custom .active {
                max-width: 180px;
            }
            .article-title {
                font-size: 22px;
            }
            .article-meta {
                flex-direction: column;
                gap: 8px;
            }
            .article-content {
                font-size: 15.5px;
            }
            .article-content p {
                font-size: 15.5px;
            }
            .article-content h2 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 19px;
            }
            .article-footer-note {
                margin-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
            .status-row {
                font-size: 13px;
            }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b1a2e;
            --primary-light: #132940;
            --primary-dark: #060e18;
            --accent: #f0b34b;
            --accent-dark: #d99b2b;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --text-main: #1a2533;
            --text-body: #4a5a6a;
            --text-mute: #8a97a5;
            --border: #e4e9ef;
            --border-dark: rgba(255, 255, 255, 0.12);
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(10, 24, 42, 0.06);
            --shadow-md: 0 8px 30px rgba(10, 24, 42, 0.08);
            --shadow-lg: 0 18px 50px rgba(10, 24, 42, 0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s ease;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-light);
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea,
        select {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Buttons ===== */
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 50px;
            border: none;
            box-shadow: 0 4px 18px rgba(240, 179, 75, 0.35);
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .btn-gold:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(240, 179, 75, 0.45);
        }

        .btn-gold:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(240, 179, 75, 0.35);
        }

        .btn-gold:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff !important;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            transition: var(--transition);
        }

        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent) !important;
            background: rgba(240, 179, 75, 0.08);
            transform: translateY(-2px);
        }

        .btn-ghost:focus-visible {
            outline: 3px solid rgba(240, 179, 75, 0.5);
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary) !important;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 50px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent-dark) !important;
            background: rgba(240, 179, 75, 0.06);
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(240, 179, 75, 0.4);
            outline-offset: 2px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(240, 179, 75, 0.14);
            border: 1px solid rgba(240, 179, 75, 0.4);
            padding: 8px 18px;
            border-radius: 50px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-header:hover {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(240, 179, 75, 0.3);
        }

        .btn-header:focus-visible {
            outline: 3px solid rgba(240, 179, 75, 0.5);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(10, 24, 42, 0.08);
        }

        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 21px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

        .brand-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(240, 179, 75, 0.2);
            flex-shrink: 0;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }

        .nav-item {
            position: relative;
            display: inline-block;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 8px;
            transition: var(--transition);
        }

        .nav-item::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            transform: translateX(-50%);
            transition: var(--transition);
        }

        .nav-item:hover {
            color: var(--primary);
            background: rgba(240, 179, 75, 0.06);
        }

        .nav-item:hover::after {
            width: 24px;
        }

        .nav-item.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-item.active::after {
            width: 24px;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(10, 24, 42, 0.05);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(240, 179, 75, 0.15);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(6, 14, 24, 0.94) 0%, rgba(11, 26, 46, 0.88) 55%, rgba(19, 41, 64, 0.82) 100%),
                url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            padding: 110px 0 90px;
            border-bottom: 1px solid var(--border-dark);
        }

        .page-hero .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 24px;
        }

        .page-hero .breadcrumb-line a {
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition);
        }

        .page-hero .breadcrumb-line a:hover {
            color: var(--accent);
        }

        .page-hero .breadcrumb-line i {
            font-size: 10px;
            opacity: 0.7;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(240, 179, 75, 0.12);
            border: 1px solid rgba(240, 179, 75, 0.35);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .hero-tag i {
            font-size: 12px;
        }

        .page-hero h1 {
            color: #ffffff;
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            max-width: 720px;
            line-height: 1.22;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .page-hero h1 span {
            color: var(--accent);
        }

        .page-hero p.lead-text {
            color: rgba(255, 255, 255, 0.72);
            font-size: 17px;
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== Section Title ===== */
        .section-title {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-eyebrow::before {
            content: "";
            width: 32px;
            height: 1px;
            background: var(--accent);
            display: inline-block;
        }

        .section-title h2 {
            font-size: clamp(1.7rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .section-title p {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ===== Section Spacing ===== */
        .section-block {
            padding: 100px 0;
        }

        .section-block-alt {
            background: var(--bg-white);
            padding: 100px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-block-dark {
            background: var(--primary);
            padding: 100px 0;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        /* ===== Intro Cards ===== */
        .intro-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .intro-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .intro-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 179, 75, 0.3);
        }

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

        .intro-card .icon-wrap {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(240, 179, 75, 0.12);
            color: var(--accent-dark);
            font-size: 22px;
            border-radius: 14px;
            margin-bottom: 20px;
        }

        .intro-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .intro-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Gameplay Cards ===== */
        .gameplay-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .gameplay-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 179, 75, 0.3);
        }

        .gameplay-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .gameplay-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .gameplay-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .gameplay-card .card-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(6, 14, 24, 0.75));
        }

        .gameplay-card .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(6, 14, 24, 0.78);
            backdrop-filter: blur(8px);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
            border: 1px solid rgba(240, 179, 75, 0.3);
        }

        .gameplay-card .card-body-content {
            padding: 26px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .gameplay-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .gameplay-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 20px;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            transition: var(--transition);
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

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

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Deep Guide ===== */
        .depth-row {
            margin-bottom: 80px;
        }

        .depth-row:last-child {
            margin-bottom: 0;
        }

        .depth-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .depth-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
            transition: transform 0.6s ease;
        }

        .depth-image:hover img {
            transform: scale(1.03);
        }

        .depth-content {
            padding: 20px 0;
        }

        .depth-content .depth-tag {
            display: inline-block;
            background: rgba(240, 179, 75, 0.14);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .depth-content h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .depth-content p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .depth-list {
            list-style: none;
            padding: 0;
            margin: 0 0 22px;
        }

        .depth-list li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .depth-list li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 400;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--accent);
            font-size: 14px;
        }

        /* ===== Path ===== */
        .path-item {
            position: relative;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            transition: var(--transition);
            text-align: center;
        }

        .path-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(240, 179, 75, 0.35);
            transform: translateY(-4px);
        }

        .path-num {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 44px;
            font-weight: 800;
            color: rgba(240, 179, 75, 0.14);
            line-height: 1;
        }

        .path-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(240, 179, 75, 0.12);
            color: var(--accent);
            border-radius: 16px;
            font-size: 24px;
        }

        .path-item h4 {
            color: #ffffff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .path-item p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .path-arrow {
            position: absolute;
            top: 50%;
            right: -24px;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 14px;
            z-index: 2;
            opacity: 0.6;
        }

        @media (max-width: 991px) {
            .path-arrow {
                display: none;
            }
        }

        /* ===== Stats ===== */
        .stats-panel {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            border: 1px solid var(--border-dark);
            border-radius: 24px;
            padding: 64px 48px;
            position: relative;
            overflow: hidden;
        }

        .stats-panel::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(240, 179, 75, 0.15), transparent 70%);
        }

        .stat-item {
            text-align: center;
            padding: 20px 0;
            position: relative;
        }

        .stat-item .stat-label {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }

        .stat-item .stat-value {
            color: #ffffff;
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.2;
        }

        .stat-item .stat-value span {
            color: var(--accent);
        }

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

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(240, 179, 75, 0.35);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: rgba(240, 179, 75, 0.5);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            transition: var(--transition);
        }

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

        .faq-question:focus-visible {
            outline: 3px solid rgba(240, 179, 75, 0.4);
            outline-offset: -3px;
        }

        .faq-question i.fa-chevron-down {
            flex-shrink: 0;
            color: var(--accent);
            transition: transform 0.35s ease;
        }

        .faq-item.active .faq-question i.fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 24px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            background-blend-mode: overlay;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            padding: 80px 0;
        }

        .cta-inner h2 {
            color: #ffffff;
            font-size: clamp(1.8rem, 3.4vw, 2.8rem);
            font-weight: 800;
            margin-bottom: 18px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-dark);
            padding: 70px 0 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 18px;
        }

        .footer-about {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-links h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 22px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-links h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .footer-links ul li {
            margin-bottom: 12px;
        }

        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links ul li a i {
            font-size: 10px;
            color: var(--accent);
            opacity: 0.7;
        }

        .footer-links ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-copyright {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-tech {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-tech i {
            color: var(--accent);
            opacity: 0.7;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .container {
                max-width: 960px;
            }
        }

        @media (max-width: 991px) {
            .section-block,
            .section-block-alt,
            .section-block-dark {
                padding: 72px 0;
            }

            .site-header {
                box-shadow: 0 2px 16px rgba(10, 24, 42, 0.06);
            }

            .header-row {
                height: 64px;
            }

            .site-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 16px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 40px rgba(10, 24, 42, 0.1);
                display: none;
                z-index: 1001;
            }

            .site-nav.open {
                display: flex;
            }

            .nav-item {
                padding: 12px 14px;
                font-size: 16px;
                border-radius: 10px;
            }

            .nav-item::after {
                display: none;
            }

            .nav-item:hover {
                background: rgba(240, 179, 75, 0.08);
            }

            .nav-item.active {
                background: rgba(240, 179, 75, 0.1);
            }

            .nav-toggle {
                display: inline-flex;
            }

            .btn-header {
                padding: 7px 14px;
                font-size: 13px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

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

            .footer-about {
                max-width: 480px;
            }

            .depth-row {
                margin-bottom: 56px;
            }

            .stats-panel {
                padding: 48px 32px;
            }
        }

        @media (max-width: 767px) {
            .page-hero {
                padding: 80px 0 64px;
            }

            .page-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .page-hero .hero-actions .btn-gold,
            .page-hero .hero-actions .btn-ghost {
                justify-content: center;
            }

            .section-title {
                margin-bottom: 40px;
            }

            .section-block,
            .section-block-alt,
            .section-block-dark {
                padding: 56px 0;
            }

            .depth-content {
                padding: 16px 0 0;
            }

            .cta-inner {
                padding: 56px 0;
            }

            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-row {
                gap: 10px;
            }

            .brand {
                font-size: 18px;
                gap: 8px;
            }

            .brand-dot {
                width: 9px;
                height: 9px;
            }

            .btn-header {
                display: none;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .stats-panel {
                padding: 36px 18px;
                border-radius: 18px;
            }

            .gameplay-card .card-body-content {
                padding: 20px 18px;
            }

            .intro-card {
                padding: 28px 20px;
            }

            .faq-question {
                padding: 18px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 18px 20px;
                font-size: 14px;
            }

            .page-hero h1 {
                font-size: 1.7rem;
            }

            .page-hero p.lead-text {
                font-size: 15px;
            }

            .depth-image img {
                aspect-ratio: 16 / 11;
            }
        }