/* roulang page: index */
:root {
            --primary: #6c5ce7;
            --primary-dark: #5346c7;
            --primary-light: #8b7cf0;
            --secondary: #00d4ff;
            --accent: #ff6b9d;
            --dark: #0b0e1f;
            --dark-2: #141834;
            --dark-3: #1d2245;
            --light-bg: #f5f7fe;
            --white: #ffffff;
            --text-main: #171a36;
            --text-muted: #6b7094;
            --text-light: #aab0d9;
            --border: #e5e8f5;
            --radius-xl: 32px;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-xs: 0 2px 6px rgba(15, 18, 54, 0.04);
            --shadow-sm: 0 4px 14px rgba(15, 18, 54, 0.06);
            --shadow-md: 0 10px 30px rgba(15, 18, 54, 0.08);
            --shadow-lg: 0 20px 60px rgba(15, 18, 54, 0.12);
            --shadow-primary: 0 8px 30px rgba(108, 92, 231, 0.25);
            --font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--white);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 7px 18px;
            border-radius: 100px;
            letter-spacing: 1px;
            margin-bottom: 18px;
            border: 1px solid rgba(108, 92, 231, 0.1);
        }

        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.8;
        }

        .gradient-text {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .btn-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: #fff;
            border: none;
            padding: 14px 34px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all 0.35s ease;
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.28);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-gradient:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(108, 92, 231, 0.36);
            color: #fff;
        }

        .btn-outline-light-custom {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 12px 30px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-light-custom:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateY(-3px);
        }

        .btn-light-solid {
            background: #fff;
            color: var(--primary);
            padding: 14px 30px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 15px;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-light-solid:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
            color: var(--primary);
        }

        /* ===== Header ===== */
        .site-header {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 20px 0;
            background: transparent;
            transition: all 0.4s ease;
        }

        .site-header.scrolled {
            background: rgba(11, 14, 31, 0.96);
            padding: 10px 0;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 42px;
        }

        .site-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1;
        }

        .site-logo i {
            color: var(--secondary);
            font-size: 1.8rem;
        }

        .site-logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .main-nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav-list a {
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 0;
            position: relative;
            letter-spacing: 0.3px;
        }

        .main-nav-list a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--secondary), var(--primary-light));
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .main-nav-list a:hover {
            color: #fff;
        }

        .main-nav-list a:hover::after,
        .main-nav-list a.active::after {
            width: 100%;
        }

        .main-nav-list a.active {
            color: #fff;
            font-weight: 600;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 100px;
            padding: 8px 18px;
            gap: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.35s ease;
            width: 220px;
        }

        .header-search:focus-within {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
        }

        .header-search i {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }

        .header-search input {
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
            width: 100%;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .btn-header-cta {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-light) 100%);
            color: #0b0e1f;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 100px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn-header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.4);
            color: #0b0e1f;
        }

        .navbar-toggler-custom {
            display: none;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            padding: 10px 14px;
            color: #fff;
            font-size: 1.2rem;
            cursor: pointer;
            line-height: 1;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 170px 0 110px;
            background: var(--dark);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.42;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(11, 14, 31, 0.92) 30%, rgba(11, 14, 31, 0.55) 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 10;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 100px;
            padding: 8px 20px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            backdrop-filter: blur(10px);
            margin-bottom: 26px;
        }

        .hero-badge i {
            color: var(--secondary);
        }

        .hero-title {
            font-size: 3.6rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1.5px;
            line-height: 1.2;
            margin-bottom: 22px;
        }

        .hero-title .gradient-text {
            font-size: inherit;
            font-weight: inherit;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.9;
            margin-bottom: 40px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            margin-bottom: 55px;
        }

        .hero-stats {
            display: flex;
            gap: 44px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 34px;
        }

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

        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat-num i {
            color: var(--secondary);
            font-size: 1.2rem;
            margin-right: 4px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        .hero-visual {
            position: relative;
            padding: 30px 0;
        }

        .hero-visual-inner {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero-visual-inner img {
            width: 100%;
            display: block;
            min-height: 400px;
            object-fit: cover;
        }

        .hero-visual-glass {
            position: absolute;
            top: 24px;
            right: 24px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-radius: 16px;
            padding: 14px 24px;
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.2);
        }

        .hero-visual-glass .g-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .hero-visual-glass .g-item:last-child {
            margin-bottom: 0;
        }

        .hero-visual-glass .g-item i {
            color: var(--primary);
            font-size: 16px;
        }

        .hero-visual-glass .g-item small {
            color: var(--text-muted);
            font-weight: 400;
        }

        .hero-floating-card {
            position: absolute;
            bottom: -20px;
            left: -30px;
            background: #fff;
            border-radius: 16px;
            padding: 18px 26px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .hero-floating-card .fc-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: rgba(108, 92, 231, 0.1);
            color: var(--primary);
        }

        .hero-floating-card .fc-text {
            display: flex;
            flex-direction: column;
        }

        .hero-floating-card .fc-text strong {
            font-size: 1.1rem;
            color: var(--text-main);
        }

        .hero-floating-card .fc-text span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== Feature Section ===== */
        .features-section {
            background: var(--white);
            padding: 100px 0;
        }

        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 34px;
            height: 100%;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.08), transparent 70%);
            top: -30px;
            right: -30px;
            transition: transform 0.5s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-8px);
            border-color: transparent;
        }

        .feature-card:hover::before {
            transform: scale(2);
        }

        .feature-icon {
            width: 70px;
            height: 70px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            background: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(0, 212, 255, 0.1));
            margin-bottom: 24px;
            transition: all 0.4s ease;
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.3);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-top: 16px;
            opacity: 0;
            transform: translateY(8px);
            transition: all 0.4s ease;
        }

        .feature-card:hover .feature-link {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Category Section ===== */
        .category-section {
            background: var(--light-bg);
            padding: 100px 0;
        }

        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            height: 380px;
            display: block;
            box-shadow: var(--shadow-sm);
            transition: all 0.4s ease;
            background: var(--dark);
        }

        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.75;
            transition: all 0.5s ease;
        }

        .category-card:hover img {
            transform: scale(1.07);
            opacity: 0.55;
        }

        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(190deg, transparent 30%, rgba(11, 14, 31, 0.85) 100%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px 28px;
            transition: padding 0.4s ease;
        }

        .category-card:hover .category-card-overlay {
            padding-bottom: 42px;
        }

        .category-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            border-radius: 100px;
            color: #fff;
            font-size: 12px;
            padding: 5px 14px;
            margin-bottom: 16px;
            align-self: flex-start;
            font-weight: 600;
        }

        .category-card-overlay h3 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .category-card-overlay p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .category-card-more {
            color: var(--secondary);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            opacity: 0.85;
        }

        .category-card:hover .category-card-more {
            gap: 12px;
            opacity: 1;
        }

        /* ===== News / CMS List Section ===== */
        .news-section {
            background: var(--white);
            padding: 100px 0;
        }

        .news-section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 44px;
            flex-wrap: wrap;
            gap: 24px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 28px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 30px;
            margin-bottom: 16px;
            transition: all 0.35s ease;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(6px);
            background: #fff;
        }

        .news-item-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(0, 212, 255, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
        }

        .news-item-content {
            flex: 1;
            min-width: 0;
        }

        .news-item-content .meta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .news-item-content .cat {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(108, 92, 231, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: 100px;
        }

        .news-item-content .time {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-item-content .title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color 0.3s ease;
        }

        .news-item:hover .news-item-content .title {
            color: var(--primary);
        }

        .news-item-content .desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item-arrow {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 15px;
            transition: all 0.35s ease;
        }

        .news-item:hover .news-item-arrow {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: var(--shadow-primary);
            transform: translateX(4px);
        }

        .news-empty {
            text-align: center;
            padding: 80px 40px;
            background: var(--light-bg);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
        }

        .news-empty i {
            font-size: 2.5rem;
            color: #b8bede;
            margin-bottom: 16px;
            display: block;
        }

        .news-empty p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* ===== Data / Stats Section ===== */
        .data-section {
            position: relative;
            background: var(--dark);
            padding: 100px 0;
            overflow: hidden;
        }

        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
        }

        .data-section .container {
            position: relative;
            z-index: 2;
        }

        .data-item {
            text-align: center;
            padding: 45px 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(10px);
            height: 100%;
            transition: all 0.4s ease;
        }

        .data-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-6px);
        }

        .data-icon {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 20px;
            display: block;
        }

        .data-num {
            font-size: 2.6rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.2;
        }

        .data-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-top: 6px;
            letter-spacing: 1px;
        }

        /* ===== Process Section ===== */
        .process-section {
            background: var(--light-bg);
            padding: 100px 0;
        }

        .process-item {
            position: relative;
            text-align: center;
            padding: 30px 24px;
        }

        .process-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            box-shadow: 0 10px 28px rgba(108, 92, 231, 0.3);
            position: relative;
            z-index: 2;
        }

        .process-item::before {
            content: '';
            position: absolute;
            top: 45px;
            left: calc(50% + 40px);
            width: calc(100% - 40px);
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0.3;
            z-index: 0;
        }

        .process-item:last-child::before {
            display: none;
        }

        .process-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .process-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 260px;
            margin: 0 auto;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--white);
            padding: 100px 0;
        }

        .faq-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.35s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(108, 92, 231, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 28px;
            cursor: pointer;
            user-select: none;
            gap: 16px;
        }

        .faq-question h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin: 0;
            flex: 1;
        }

        .faq-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            transition: all 0.35s ease;
        }

        .faq-item.active .faq-icon {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 28px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 28px 22px;
        }

        .faq-answer p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            margin: 0;
            border-top: 1px solid var(--border);
            padding-top: 18px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark-2) 60%, var(--dark) 100%);
            padding: 90px 0;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.2), transparent 70%);
            border-radius: 50%;
        }

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

        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 1.05rem;
            max-width: 520px;
            line-height: 1.8;
            margin-bottom: 0;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            padding: 70px 0 0;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-top {
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand i {
            color: var(--secondary);
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.3s ease;
        }

        .footer-links a i {
            font-size: 10px;
            color: var(--secondary);
            opacity: 0.5;
        }

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

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-contact li i {
            color: var(--primary-light);
            font-size: 15px;
            width: 20px;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu-backdrop {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .mobile-menu-backdrop.show {
            opacity: 1;
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100%;
            background: var(--dark-2);
            z-index: 999;
            padding: 30px 28px;
            transition: right 0.35s ease;
            box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
        }

        .mobile-menu-panel.show {
            right: 0;
        }

        .mobile-menu-panel .mm-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 30px;
        }

        .mobile-menu-panel .mm-logo i {
            color: var(--secondary);
        }

        .mobile-menu-panel .mm-close {
            position: absolute;
            top: 28px;
            right: 28px;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-menu-list li {
            margin-bottom: 6px;
        }

        .mobile-menu-list a {
            display: block;
            padding: 12px 16px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            border-radius: 10px;
            transition: all 0.3s;
            font-weight: 500;
        }

        .mobile-menu-list a:hover,
        .mobile-menu-list a.active {
            background: rgba(108, 92, 231, 0.15);
            color: #fff;
        }

        .mobile-menu-panel .mm-btn {
            margin-top: 24px;
            width: 100%;
            justify-content: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .hero-title {
                font-size: 3rem;
            }

            .main-nav-list {
                gap: 22px;
            }

            .header-left {
                gap: 28px;
            }

            .header-search {
                width: 170px;
            }
        }

        @media (max-width: 991px) {
            .site-header {
                padding: 14px 0;
            }

            .main-nav-list {
                display: none;
            }

            .header-search {
                display: none;
            }

            .btn-header-cta {
                display: none;
            }

            .navbar-toggler-custom {
                display: flex;
            }

            .hero {
                padding: 130px 0 80px;
            }

            .hero-title {
                font-size: 2.6rem;
            }

            .hero-visual {
                margin-top: 60px;
            }

            .hero-floating-card {
                left: 20px;
            }

            .section-padding {
                padding: 70px 0;
            }

            .features-section,
            .category-section,
            .news-section,
            .data-section,
            .process-section,
            .faq-section {
                padding: 70px 0;
            }

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

            .data-item {
                margin-bottom: 24px;
            }

            .process-item::before {
                display: none;
            }

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-top .col-lg-3,
            .footer-top .col-lg-2,
            .footer-top .col-lg-4 {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }

            .features-section,
            .category-section,
            .news-section,
            .data-section,
            .process-section,
            .faq-section {
                padding: 56px 0;
            }

            .hero-title {
                font-size: 2.2rem;
            }

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

            .hero-stats {
                gap: 24px;
            }

            .hero-stat-num {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .section-subtitle {
                font-size: 0.95rem;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 22px;
            }

            .news-item-arrow {
                display: none;
            }

            .news-item-content .title {
                white-space: normal;
            }

            .news-item-content .desc {
                white-space: normal;
                display: -webkit-box;
                -webkit-line-clamp: 2;
                -webkit-box-orient: vertical;
                overflow: hidden;
            }

            .category-card {
                height: 320px;
                margin-bottom: 20px;
            }

            .cta-content h2 {
                font-size: 1.7rem;
            }

            .faq-question {
                padding: 18px 20px;
            }

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

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

            .hero {
                padding: 110px 0 60px;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn-gradient,
            .hero-actions .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                flex-wrap: wrap;
                gap: 16px 24px;
            }

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

            .hero-visual-glass {
                right: 12px;
                top: 12px;
                padding: 10px 16px;
            }

            .hero-floating-card {
                bottom: -15px;
                padding: 12px 18px;
                gap: 10px;
            }

            .hero-floating-card .fc-icon {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .section-tag {
                font-size: 12px;
                padding: 5px 14px;
            }

            .feature-card {
                padding: 28px 22px;
            }

            .news-item-content .meta-row {
                gap: 8px;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn-gradient,
            .cta-actions .btn-light-solid {
                width: 100%;
                justify-content: center;
            }

            .footer-bottom {
                font-size: 0.78rem;
                padding: 18px 12px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #7c5cfc;
  --primary-light: #9d85ff;
  --primary-dark: #5b3ee0;
  --accent: #00d4aa;
  --accent-light: #2ce5c0;
  --bg-dark: #0f1117;
  --bg-body: #141824;
  --bg-card: #1a1f2e;
  --bg-card-hover: #222838;
  --bg-section: #181d2b;
  --text-main: #eef0f6;
  --text-body: #a8b0c4;
  --text-mute: #6b7390;
  --border: #2a3042;
  --border-light: #353d52;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.28);
  --shadow-hover: 0 16px 42px rgba(124,92,252,0.16);
  --transition: all .3s ease;
  --font-family: "PingFang SC","HarmonicOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg-body); color: var(--text-main); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; }
.container { max-width: 1200px; }
::selection { background: var(--primary); color: #fff; }

/* ===== Header & Nav ===== */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(15,17,23,0.92); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 20px; }
.header-left { display: flex; align-items: center; gap: 32px; }
.site-logo { font-size: 1.4rem; font-weight: 800; color: var(--text-main); display: flex; align-items: center; gap: 8px; letter-spacing: .5px; }
.site-logo i { color: var(--primary); font-size: 1.3rem; background: rgba(124,92,252,0.15); width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
.site-logo span { color: var(--accent); }
.main-nav-list { display: flex; gap: 6px; padding: 0; margin: 0; }
.main-nav-list li a { padding: 9px 18px; border-radius: 10px; font-size: .92rem; font-weight: 500; color: var(--text-body); position: relative; }
.main-nav-list li a:hover { color: var(--text-main); background: rgba(124,92,252,0.1); }
.main-nav-list li a.active { color: #fff; background: var(--primary); box-shadow: 0 4px 20px rgba(124,92,252,0.35); }
.header-right { display: flex; align-items: center; gap: 14px; }
.header-search { display: flex; align-items: center; gap: 8px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 30px; padding: 7px 18px; transition: var(--transition); }
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(124,92,252,0.12); }
.header-search i { color: var(--text-mute); font-size: .85rem; }
.header-search input { background: transparent; border: none; outline: none; color: var(--text-main); font-size: .85rem; width: 150px; }
.header-search input::placeholder { color: var(--text-mute); }
.btn-header-cta { display: inline-flex; align-items: center; gap: 7px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; padding: 8px 22px; border-radius: 30px; font-size: .88rem; font-weight: 600; box-shadow: 0 4px 18px rgba(124,92,252,0.35); transition: var(--transition); }
.btn-header-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 26px rgba(124,92,252,0.45); color: #fff; }
.navbar-toggler-custom { display: none; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-main); width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; }
.navbar-toggler-custom i { font-size: 1.1rem; }

/* ===== Banner ===== */
.page-banner { padding: 80px 0 72px; background: linear-gradient(135deg, rgba(15,17,23,0.92), rgba(20,24,36,0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; position: relative; border-bottom: 1px solid var(--border); }
.banner-content { max-width: 720px; }
.banner-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(124,92,252,0.15); border: 1px solid rgba(124,92,252,0.3); color: var(--primary-light); padding: 6px 16px; border-radius: 30px; font-size: .8rem; font-weight: 600; margin-bottom: 18px; }
.page-banner h1 { font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px; letter-spacing: 1px; }
.page-banner h1 span { color: var(--primary-light); }
.page-banner p { font-size: 1.05rem; color: var(--text-body); margin-bottom: 30px; max-width: 620px; }
.banner-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.banner-tags .tag { background: rgba(255,255,255,0.06); border: 1px solid var(--border); border-radius: 20px; padding: 5px 14px; font-size: .82rem; color: var(--text-body); }

/* ===== Category Filter ===== */
.filter-section { background: var(--bg-section); border-bottom: 1px solid var(--border); padding: 24px 0; }
.filter-wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-tabs .filter-btn { background: transparent; border: 1px solid var(--border); color: var(--text-body); padding: 7px 18px; border-radius: 24px; font-size: .85rem; font-weight: 500; cursor: pointer; transition: var(--transition); }
.filter-tabs .filter-btn:hover { border-color: var(--primary); color: var(--primary-light); }
.filter-tabs .filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(124,92,252,0.3); }
.filter-count { font-size: .88rem; color: var(--text-mute); }
.filter-count strong { color: var(--primary-light); }

/* ===== News Grid ===== */
.news-section { padding: 64px 0 72px; }
.section-head { margin-bottom: 38px; }
.section-head .section-tag { display: inline-block; color: var(--primary-light); font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px; }
.section-head h2 { font-size: 2rem; font-weight: 800; margin: 0; }
.section-head p { color: var(--text-mute); margin-top: 6px; max-width: 560px; }
.news-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); height: 100%; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--border-light); }
.news-card .card-img { position: relative; overflow: hidden; height: 192px; }
.news-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .card-img img { transform: scale(1.06); }
.news-card .card-img .img-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(15,17,23,0.85) 100%); }
.news-card .card-img .badge { position: absolute; top: 12px; left: 12px; background: var(--primary); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: .75rem; font-weight: 600; }
.news-card .card-img .date { position: absolute; bottom: 12px; left: 14px; color: #fff; font-size: .8rem; }
.news-card .card-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.news-card .card-body h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.news-card .card-body h3 a:hover { color: var(--primary-light); }
.news-card .card-body p { font-size: .9rem; color: var(--text-body); margin-bottom: 14px; flex: 1; }
.card-meta { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 14px; margin-top: auto; }
.card-meta .meta-left { display: flex; gap: 14px; font-size: .8rem; color: var(--text-mute); }
.card-meta .meta-left i { margin-right: 4px; }
.card-meta .read-more { color: var(--primary-light); font-size: .85rem; font-weight: 600; }
.card-meta .read-more:hover { color: var(--accent); }

/* ===== Feature Block ===== */
.feature-section { background: var(--bg-section); padding: 70px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.feature-card-large { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 24px; transition: var(--transition); }
.feature-card-large:hover { box-shadow: var(--shadow-hover); }
.feature-card-large .row { align-items: center; }
.feature-img { position: relative; min-height: 260px; }
.feature-img img { width: 100%; height: 100%; object-fit: cover; }
.feature-img .play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 60px; height: 60px; background: rgba(124,92,252,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.4rem; box-shadow: 0 6px 24px rgba(124,92,252,0.4); transition: var(--transition); }
.feature-img .play-btn:hover { transform: translate(-50%, -50%) scale(1.1); background: var(--primary); }
.feature-content { padding: 32px 38px; }
.feature-content .feature-tag { display: inline-block; background: rgba(0,212,170,0.12); color: var(--accent); padding: 4px 14px; border-radius: 20px; font-size: .78rem; font-weight: 700; margin-bottom: 14px; }
.feature-content h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 12px; }
.feature-content p { color: var(--text-body); font-size: .95rem; margin-bottom: 20px; }
.feature-list { padding: 0; margin: 0 0 22px; }
.feature-list li { display: flex; valign: center; gap: 10px; color: var(--text-body); font-size: .9rem; margin-bottom: 8px; }
.feature-list li i { color: var(--accent); margin-top: 5px; }
.btn-feature { background: var(--primary); border: none; color: #fff; padding: 10px 26px; border-radius: 30px; font-weight: 600; font-size: .9rem; transition: var(--transition); }
.btn-feature:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(124,92,252,0.35); color: #fff; }

/* ===== Stats ===== */
.stats-section { padding: 64px 0; background: linear-gradient(135deg, rgba(124,92,252,0.08), rgba(0,212,170,0.04)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { background: rgba(26,31,46,0.9); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px 20px; text-align: center; transition: var(--transition); backdrop-filter: blur(10px); }
.stat-item:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: var(--shadow-card); }
.stat-item .stat-icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(124,92,252,0.15); display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; color: var(--primary-light); font-size: 1.4rem; }
.stat-item .stat-num { font-size: 2.1rem; font-weight: 800; color: var(--text-main); line-height: 1.2; }
.stat-item .stat-num em { font-size: 1.2rem; font-style: normal; color: var(--primary-light); }
.stat-item .stat-label { font-size: .85rem; color: var(--text-mute); margin-top: 6px; }

/* ===== Media / Video ===== */
.media-section { padding: 70px 0; background: var(--bg-body); }
.media-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); margin-bottom: 24px; }
.media-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.media-card .media-img { position: relative; height: 185px; overflow: hidden; }
.media-card .media-img img { width: 100%; height: 100%; object-fit: cover; }
.media-card .media-img .play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 48px; height: 48px; background: rgba(15,17,23,0.7); border: 2px solid rgba(255,255,255,0.7); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; transition: var(--transition); }
.media-card:hover .play-btn { background: var(--primary); border-color: var(--primary); }
.media-card .media-body { padding: 16px 18px 20px; }
.media-card .media-body h4 { font-size: .98rem; font-weight: 700; margin-bottom: 6px; line-height: 1.4; }
.media-card .media-body h4 a:hover { color: var(--primary-light); }
.media-card .media-body .media-meta { font-size: .78rem; color: var(--text-mute); display: flex; gap: 14px; }
.media-card .media-body .media-meta i { margin-right: 3px; }

/* ===== FAQ ===== */
.faq-section { padding: 70px 0; background: var(--bg-section); border-top: 1px solid var(--border); }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px 26px; margin-bottom: 14px; transition: var(--transition); }
.faq-item:hover { border-color: var(--border-light); }
.faq-item h4 { font-size: 1.02rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.faq-item h4 i { color: var(--primary-light); font-size: .9rem; }
.faq-item p { color: var(--text-body); font-size: .9rem; margin: 0; padding-left: 26px; }

/* ===== CTA ===== */
.cta-section { padding: 70px 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; position: relative; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(124,92,252,0.92), rgba(15,17,23,0.95)); }
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { font-size: 2.1rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-inner p { color: rgba(255,255,255,0.8); font-size: .98rem; margin-bottom: 28px; }
.btn-cta-light { background: #fff; color: var(--primary-dark); padding: 12px 34px; border-radius: 30px; font-weight: 700; font-size: .95rem; border: none; transition: var(--transition); }
.btn-cta-light:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.25); color: var(--primary-dark); }
.btn-cta-outline { background: transparent; border: 2px solid rgba(255,255,255,0.7); color: #fff; padding: 10px 30px; border-radius: 30px; font-weight: 600; font-size: .92rem; margin-left: 12px; transition: var(--transition); }
.btn-cta-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }

/* ===== Footer ===== */
.site-footer { background: #0b0d12; border-top: 1px solid var(--border); padding: 64px 0 0; }
.footer-top { padding-bottom: 40px; }
.footer-brand { font-size: 1.4rem; font-weight: 800; color: var(--text-main); display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.footer-brand i { color: var(--primary); background: rgba(124,92,252,0.15); width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
.footer-desc { color: var(--text-mute); font-size: .9rem; max-width: 320px; margin: 0; }
.footer-title { color: var(--text-main); font-size: .95rem; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: '·'; color: var(--primary); font-size: 1.4rem; line-height: 1; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-body); font-size: .88rem; display: inline-flex; align-items: center; gap: 6px; }
.footer-links a i { font-size: .65rem; color: var(--text-mute); }
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-contact li { color: var(--text-body); font-size: .88rem; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--primary-light); width: 16px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; text-align: center; color: var(--text-mute); font-size: .82rem; }
.footer-bottom a { color: var(--text-body); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .main-nav-list { display: none; }
  .navbar-toggler-custom { display: flex; }
  .header-search { display: none; }
  .header-left { gap: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-banner h1 { font-size: 2.4rem; }
  .feature-content { padding: 24px; }
}
@media (max-width: 767.98px) {
  .page-banner { padding: 56px 0 48px; }
  .page-banner h1 { font-size: 2rem; }
  .page-banner p { font-size: .92rem; }
  .btn-header-cta { padding: 8px 14px; font-size: .8rem; }
  .btn-header-cta span { display: none; }
  .section-head h2 { font-size: 1.6rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .stat-item { padding: 20px 12px; }
  .stat-item .stat-num { font-size: 1.5rem; }
  .filter-wrap { justify-content: center; }
  .filter-count { width: 100%; text-align: center; }
  .cta-inner h2 { font-size: 1.6rem; }
  .btn-cta-outline { margin-left: 0; margin-top: 10px; }
  .footer-bottom { font-size: .75rem; padding: 16px 10px; }
}
@media (max-width: 575.98px) {
  .header-inner { padding: 10px 0; }
  .site-logo { font-size: 1.15rem; }
  .site-logo i { width: 32px; height: 32px; font-size: 1rem; }
  .btn-header-cta { width: 40px; height: 40px; padding: 0; border-radius: 10px; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .news-card .card-img { height: 170px; }
  .feature-list li { font-size: .85rem; }
  .page-banner h1 { font-size: 1.7rem; }
  .section-head h2 { font-size: 1.4rem; }
  .section-head p { font-size: .88rem; }
  .footer-title::after { display: none; }
}

/* roulang page: article */
:root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --secondary: #06b6d4;
            --accent: #f59e0b;
            --bg: #f8fafc;
            --bg-soft: #eef2ff;
            --bg-deep: #0b1220;
            --text: #0f172a;
            --text-light: #475569;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow: 0 4px 16px rgba(15, 23, 42, .06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, .12);
            --transition: .25s ease;
            --header-h: 76px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, .86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, .8);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 36px;
            flex-wrap: nowrap;
        }

        .site-logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -.5px;
            white-space: nowrap;
        }

        .site-logo i {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .site-logo span {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav-list li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: background var(--transition), color var(--transition);
        }

        .main-nav-list li a:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }

        .main-nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, .35);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f1f5f9;
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 8px 16px;
            min-width: 200px;
            transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
        }

        .header-search:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(79, 70, 229, .12);
        }

        .header-search i {
            color: var(--text-light);
            font-size: 14px;
        }

        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 14px;
            color: var(--text);
        }

        .header-search input::placeholder {
            color: #94a3b8;
        }

        .btn-header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border: none;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 14px rgba(79, 70, 229, .28);
        }

        .btn-header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79, 70, 229, .35);
            color: #fff;
        }

        .navbar-toggler-custom {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .page-hero {
            position: relative;
            padding: 96px 0 72px;
            background: linear-gradient(135deg, rgba(11, 18, 32, .94), rgba(30, 27, 75, .82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: -120px;
            bottom: -180px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(6, 182, 212, .28), transparent 70%);
            pointer-events: none;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
        }

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

        .hero-breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            backdrop-filter: blur(6px);
            letter-spacing: .4px;
        }

        .hero-badge i {
            color: var(--secondary);
        }

        .page-hero h1 {
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.28;
            margin: 0 0 20px;
            letter-spacing: -.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, .3);
        }

        .hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .78);
            max-width: 640px;
            margin-bottom: 24px;
        }

        .hero-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, .68);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-meta i {
            color: var(--secondary);
        }

        .hero-visual-card {
            position: relative;
            z-index: 1;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .14);
            box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
            transform: rotate(1.5deg);
        }

        .hero-visual-card img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        .hero-visual-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, .35), transparent 60%);
        }

        .hero-visual-tag {
            position: absolute;
            left: 16px;
            bottom: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            color: var(--text);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
            box-shadow: 0 4px 14px rgba(0, 0, 0, .2);
        }

        .article-section {
            padding: 72px 0 48px;
        }

        .article-main-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: clamp(24px, 3.5vw, 48px);
            transition: box-shadow var(--transition);
        }

        .article-content {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.9;
        }

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

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin: 32px 0 12px;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: var(--bg-soft);
            border-radius: 0 var(--radius) var(--radius) 0;
            padding: 18px 22px;
            margin: 24px 0;
            color: var(--text);
            font-weight: 500;
        }

        .article-content ul {
            padding-left: 1.4rem;
            margin-bottom: 1.2rem;
        }

        .article-content ul li {
            margin-bottom: 8px;
            position: relative;
        }

        .article-content ul li::marker {
            color: var(--primary);
        }

        .article-content a {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 1px solid transparent;
        }

        .article-content a:hover {
            border-bottom-color: var(--primary);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 28px;
            margin-top: 36px;
            border-top: 1px solid var(--border);
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }

        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found-box .icon {
            width: 72px;
            height: 72px;
            border-radius: 24px;
            background: var(--bg-soft);
            color: var(--primary);
            font-size: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
            cursor: pointer;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 4px 16px rgba(79, 70, 229, .3);
        }

        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, .4);
            color: #fff;
        }

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

        .btn-outline-custom:hover {
            border-color: var(--primary);
            background: var(--bg-soft);
            color: var(--primary);
        }

        .sidebar-widget {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 24px;
            margin-bottom: 20px;
        }

        .sidebar-widget-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-widget-title i {
            color: var(--primary);
            font-size: 16px;
        }

        .info-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .info-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            color: var(--text-light);
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li i {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--bg-soft);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }

        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            background: #fafbff;
        }

        .sidebar-nav-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .sidebar-nav-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .sidebar-nav-text {
            flex: 1;
        }

        .sidebar-nav-text strong {
            display: block;
            font-size: 15px;
            color: var(--text);
            margin-bottom: 2px;
        }

        .sidebar-nav-text span {
            font-size: 13px;
            color: var(--text-light);
        }

        .sidebar-nav-arrow {
            color: #94a3b8;
            font-size: 13px;
        }

        .category-matrix {
            padding: 72px 0;
            background: linear-gradient(180deg, var(--bg), #fff);
        }

        .section-heading {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-heading .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            border: 1px solid rgba(79, 70, 229, .15);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .section-heading h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            color: var(--text);
            letter-spacing: -.5px;
            margin-bottom: 14px;
        }

        .section-heading p {
            color: var(--text-light);
            font-size: 15px;
        }

        .category-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .category-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .category-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, .45), transparent 60%);
        }

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

        .category-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .category-card-body p {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 20px;
            flex: 1;
        }

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

        .category-card-link:hover {
            gap: 12px;
        }

        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--bg-deep), #1e1b4b), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: overlay;
            color: #fff;
            text-align: center;
        }

        .cta-box {
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: clamp(26px, 3.5vw, 38px);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -.5px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, .78);
            margin-bottom: 32px;
        }

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

        .btn-cta-light {
            background: #fff;
            color: var(--text);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
        }

        .btn-cta-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .25);
            color: var(--text);
        }

        .btn-cta-ghost {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            backdrop-filter: blur(6px);
        }

        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, .2);
            color: #fff;
            transform: translateY(-2px);
        }

        .site-footer {
            background: #0b1220;
            color: #94a3b8;
            padding: 64px 0 28px;
            font-size: 14px;
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand i {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .footer-desc {
            color: #94a3b8;
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: .3px;
        }

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

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

        .footer-links li a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #94a3b8;
            transition: color var(--transition), transform var(--transition);
        }

        .footer-links li a i {
            font-size: 11px;
            color: var(--secondary);
            transition: transform var(--transition);
        }

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

        .footer-links li a:hover i {
            transform: translateX(3px);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            color: #94a3b8;
        }

        .footer-contact li i {
            color: var(--secondary);
            margin-top: 4px;
            font-size: 13px;
            width: 16px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 44px;
            padding-top: 22px;
            text-align: center;
            font-size: 13px;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .back-to-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(79, 70, 229, .35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
            z-index: 999;
            cursor: pointer;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        @media (max-width: 1024px) {
            .header-search {
                display: none;
            }
            .category-card-img {
                height: 150px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            .main-nav-list {
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(15, 23, 42, .12);
                display: none;
                border-radius: 0 0 16px 16px;
            }
            .header-inner.menu-open .main-nav-list {
                display: flex;
            }
            .main-nav-list li a {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .btn-header-cta span {
                display: none;
            }
            .btn-header-cta {
                padding: 10px 14px;
            }
            .header-right {
                gap: 8px;
            }
            .page-hero {
                padding: 64px 0 56px;
            }
            .hero-visual-card {
                display: none;
            }
            .article-section {
                padding: 48px 0 32px;
            }
            .article-main-card {
                padding: 24px;
            }
            .sidebar-widget {
                padding: 20px;
            }
            .category-matrix,
            .cta-section {
                padding: 56px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-logo {
                font-size: 20px;
            }
            .site-logo i {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 20px;
            }
            .cta-buttons .btn-custom {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                font-size: 12px;
                line-height: 1.8;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #6c5ce7;
            --primary-dark: #4a3db8;
            --primary-light: #a29bfe;
            --accent: #00d2d3;
            --accent-rgb: 0, 210, 211;
            --secondary: #fd79a8;
            --dark: #0d0f1c;
            --dark-2: #151829;
            --dark-3: #1d2136;
            --light: #f0f1f7;
            --text: #1a1d2a;
            --text-muted: #7a7e94;
            --border: #e4e6f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 18px 50px rgba(0, 0, 0, 0.14);
            --transition: all 0.3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            background: #f8f9fd;
            color: var(--text);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 36px;
            flex: 1;
            min-width: 0;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }

        .site-logo i {
            font-size: 26px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .main-nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .main-nav-list::-webkit-scrollbar {
            display: none;
        }

        .main-nav-list li {
            flex-shrink: 0;
        }

        .main-nav-list li a {
            display: inline-block;
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }

        .main-nav-list li a:hover {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.08);
        }

        .main-nav-list li a.active {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.1);
        }

        .main-nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f0f1f5;
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 8px 18px;
            transition: var(--transition);
            width: 220px;
        }

        .header-search:focus-within {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.08);
        }

        .header-search i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            width: 100%;
            color: var(--text);
        }

        .header-search input::placeholder {
            color: #a0a3b5;
        }

        .btn-header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: 999px;
            padding: 10px 22px;
            box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4);
            color: #fff;
        }

        .navbar-toggler-custom {
            display: none;
            font-size: 22px;
            color: var(--text);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* 移动端导航 */
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid #eee;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            padding: 16px 24px;
            position: sticky;
            top: 76px;
            z-index: 999;
            border-radius: 0 0 16px 16px;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-nav-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

        .mobile-nav-list li a:hover,
        .mobile-nav-list li a.active {
            background: rgba(108, 92, 231, 0.08);
            color: var(--primary);
        }

        .mobile-nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f0f1f5;
            border-radius: 10px;
            padding: 10px 14px;
            margin-bottom: 12px;
        }

        .mobile-nav-search i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .mobile-nav-search input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            flex: 1;
        }

        /* ===== Hero 横幅 ===== */
        .category-hero {
            position: relative;
            padding: 110px 0 100px;
            background: linear-gradient(135deg, #0c0e1a 0%, #151829 50%, #1a1d33 100%);
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.35;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9), transparent);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9), transparent);
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(108, 92, 231, 0.2);
            border: 1px solid rgba(108, 92, 231, 0.4);
            border-radius: 999px;
            padding: 7px 18px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--primary-light);
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .category-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .category-hero h1 .highlight {
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .category-hero-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin-bottom: 34px;
            line-height: 1.8;
        }

        .category-hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 12px;
            padding: 14px 30px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 8px 30px rgba(0, 210, 211, 0.3);
            transition: all 0.3s ease;
            border: none;
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 210, 211, 0.4);
            color: #fff;
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            border-radius: 12px;
            padding: 14px 30px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            backdrop-filter: blur(8px);
        }

        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            background: #fff;
        }

        .breadcrumb-bar .breadcrumb {
            margin: 0;
            font-size: 14px;
        }

        .breadcrumb-bar .breadcrumb a {
            color: var(--text-muted);
        }

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

        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== 分类简介 ===== */
        .section-intro {
            padding: 80px 0 40px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.8;
        }

        .category-cards-row {
            margin-top: 48px;
        }

        .category-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 28px;
            height: 100%;
            transition: var(--transition);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

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

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

        .category-card-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(0, 210, 211, 0.12));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

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

        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 16px;
        }

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

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

        /* ===== 近期赛事 ===== */
        .section-tournaments {
            padding: 60px 0 80px;
            background: #fff;
        }

        .section-tournaments .section-title {
            text-align: center;
        }

        .section-tournaments .section-desc {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .tournament-grid {
            margin-top: 48px;
        }

        .tournament-card {
            background: #f8f9fd;
            border-radius: var(--radius);
            padding: 28px;
            height: 100%;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }

        .tournament-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(108, 92, 231, 0.2);
        }

        .tournament-card .tournament-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(0, 210, 211, 0.12);
            color: #009a9b;
            margin-bottom: 14px;
        }

        .tournament-card .tournament-status.hot {
            background: rgba(253, 121, 168, 0.12);
            color: #d6306f;
        }

        .tournament-card .tournament-status.live {
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary);
        }

        .tournament-card .tournament-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .tournament-card .tournament-meta {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            margin-bottom: 16px;
        }

        .tournament-card .tournament-meta i {
            color: var(--primary);
            margin-right: 4px;
        }

        .tournament-card .tournament-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .tournament-card .tournament-prize {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
        }

        .tournament-card .tournament-prize span {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-muted);
            margin-left: 4px;
        }

        .tournament-card .tournament-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .tournament-card .tournament-link:hover {
            gap: 8px;
        }

        .list-view-item {
            position: relative;
        }

        .list-view-item .list-view-rank {
            font-size: 44px;
            font-weight: 800;
            color: #e8e9f0;
            line-height: 1;
            margin-bottom: 8px;
            transition: var(--transition);
        }

        .list-view-item:hover .list-view-rank {
            color: var(--primary);
        }

        /* ===== 赛事内容资讯 ===== */
        .section-guides {
            padding: 80px 0;
            background: #f8f9fd;
        }

        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .guide-card .guide-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

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

        .guide-card:hover .guide-cover img {
            transform: scale(1.06);
        }

        .guide-card .guide-cover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 40%;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.4), transparent);
        }

        .guide-card .guide-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
        }

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

        .guide-card .guide-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .guide-card .guide-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .guide-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card .guide-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .guide-card .guide-read-more i {
            transition: transform 0.3s ease;
        }

        .guide-card:hover .guide-read-more i {
            transform: translateX(4px);
        }

        /* ===== 赛事流程 ===== */
        .section-process {
            padding: 80px 0;
            background: linear-gradient(135deg, #0c0e1a 0%, #151829 60%, #1c1e34 100%);
            color: #fff;
        }

        .section-process .section-title {
            color: #fff;
        }

        .section-process .section-desc {
            color: rgba(255, 255, 255, 0.65);
        }

        .process-timeline {
            margin-top: 56px;
            position: relative;
            padding-left: 40px;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            border-radius: 3px;
        }

        .process-item {
            position: relative;
            padding-bottom: 44px;
            padding-left: 30px;
        }

        .process-item:last-child {
            padding-bottom: 0;
        }

        .process-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 6px;
            width: 18px;
            height: 18px;
            background: var(--primary);
            border: 3px solid #fff;
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.3);
        }

        .process-item .step-num {
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 6px;
        }

        .process-item h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 600px;
        }

        /* ===== FAQ ===== */
        .section-faq {
            padding: 80px 0;
            background: #fff;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            margin-bottom: 14px;
            background: #fff;
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(108, 92, 231, 0.3);
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.06);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            gap: 16px;
        }

        .faq-item .faq-arrow {
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            display: none;
            padding-top: 14px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-6px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== CTA ===== */
        .section-cta {
            padding: 80px 0;
            background: #f8f9fd;
        }

        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 55%, #3a2d84 100%);
            border-radius: 24px;
            padding: 60px 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(0, 210, 211, 0.15);
        }

        .cta-banner h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 16px;
            opacity: 0.85;
            max-width: 600px;
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-light {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: 12px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0d0f1c;
            color: rgba(255, 255, 255, 0.7);
            padding-top: 70px;
            padding-bottom: 30px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--primary-light);
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-links li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links li a i {
            font-size: 11px;
            color: var(--primary-light);
        }

        .footer-links li a:hover {
            color: #fff;
            padding-left: 4px;
        }

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

        .footer-contact li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact li i {
            color: var(--primary-light);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 50px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .header-search {
                display: none;
            }

            .btn-header-cta {
                padding: 9px 16px;
                font-size: 13px;
            }

            .site-logo {
                font-size: 20px;
            }

            .main-nav-list {
                display: none;
            }

            .navbar-toggler-custom {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-nav {
                display: none;
            }

            .mobile-nav.open {
                display: block;
            }

            .category-hero {
                padding: 80px 0;
            }

            .category-hero h1 {
                font-size: 36px;
            }

            .section-title {
                font-size: 28px;
            }

            .cta-banner {
                padding: 40px 30px;
            }

            .cta-banner h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 767px) {
            .header-inner {
                height: 64px;
            }

            .mobile-nav {
                top: 64px;
            }

            .btn-header-cta {
                padding: 8px 14px;
                font-size: 12px;
            }

            .btn-header-cta i {
                font-size: 13px;
            }

            .site-logo {
                font-size: 18px;
            }

            .category-hero {
                padding: 60px 0;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .category-hero-sub {
                font-size: 15px;
            }

            .category-hero-actions {
                flex-direction: column;
            }

            .btn-hero-primary,
            .btn-hero-outline {
                justify-content: center;
                width: 100%;
            }

            .section-intro,
            .section-guides,
            .section-process,
            .section-faq,
            .section-cta {
                padding: 50px 0;
            }

            .section-title {
                font-size: 24px;
            }

            .tournament-card {
                padding: 20px;
            }

            .process-timeline {
                padding-left: 30px;
            }

            .process-item {
                padding-left: 20px;
            }

            .process-item::before {
                left: -28px;
                width: 14px;
                height: 14px;
            }

            .cta-banner {
                padding: 34px 22px;
                border-radius: 18px;
            }

            .cta-banner h2 {
                font-size: 22px;
            }

            .cta-banner p {
                font-size: 14px;
                margin-bottom: 24px;
            }

            .cta-banner .btn-light {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .footer-bottom {
                font-size: 11px;
            }
        }

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

            .btn-header-cta {
                display: none;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero-sub {
                font-size: 14px;
            }

            .section-desc {
                font-size: 14px;
            }

            .guide-card .guide-cover {
                height: 160px;
            }

            .process-item h4 {
                font-size: 17px;
            }

            .process-item p {
                font-size: 13px;
            }

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

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

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(108, 92, 231, 0.4);
            outline-offset: 2px;
        }

/* roulang page: category3 */
:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --secondary: #22d3ee;
            --accent: #f59e0b;
            --dark-bg: #0b0e1f;
            --dark-card: #161b36;
            --dark-card-2: #1e2445;
            --light-bg: #f5f6fb;
            --text-main: #1c2040;
            --text-muted: #6b7280;
            --border-color: #e6e8f0;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }

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

        body {
            margin: 0;
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--light-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1240px;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(11, 14, 31, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 40px;
        }
        .site-logo {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 26px;
        }
        .site-logo span {
            color: var(--secondary);
            font-weight: 600;
        }
        .main-nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 8px;
        }
        .main-nav-list li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 14.5px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }
        .main-nav-list li a:hover,
        .main-nav-list li a.active {
            background: rgba(99, 102, 241, 0.2);
            color: #fff;
        }
        .main-nav-list li a.active {
            box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.4);
            font-weight: 600;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            padding: 7px 16px;
            gap: 8px;
            width: 220px;
        }
        .header-search i {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
        }
        .header-search input {
            background: transparent;
            border: none;
            color: #fff;
            font-size: 13px;
            width: 100%;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .btn-header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 9px 22px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
        }
        .btn-header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
            color: #fff;
        }
        .navbar-toggler-custom {
            display: none;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            font-size: 20px;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        /* ===== Page Hero (分屏联动) ===== */
        .page-hero {
            position: relative;
            background: var(--dark-bg);
            padding: 100px 0 110px;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(34, 211, 238, 0.12);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: var(--secondary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 22px;
            letter-spacing: 0.5px;
        }
        .hero-title {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-title .grad {
            background: linear-gradient(120deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.65);
            font-size: 16px;
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 30px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 35px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat .num {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
        }
        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .hero-visual {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
        }
        .hero-visual img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(11, 14, 31, 0.5) 100%);
        }
        .hero-visual .vis-tag {
            position: absolute;
            bottom: 20px;
            left: 20px;
            z-index: 2;
            background: rgba(11, 14, 31, 0.75);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-visual .vis-tag i {
            color: var(--secondary);
        }

        /* ===== Section Base ===== */
        .section-block {
            padding: 90px 0;
        }
        .section-block.bg-white {
            background: #fff;
        }
        .section-block.bg-light {
            background: var(--light-bg);
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 55px;
        }
        .section-head .sub-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(99, 102, 241, 0.08);
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15.5px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Overview / 分类概览 ===== */
        .overview-cards .card {
            border: none;
            border-radius: var(--radius);
            padding: 30px 28px;
            height: 100%;
            background: #fff;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .overview-cards .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(99, 102, 241, 0.2);
        }
        .overview-cards .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .overview-cards .card-icon.icon-primary {
            background: rgba(99, 102, 241, 0.1);
            color: var(--primary);
        }
        .overview-cards .card-icon.icon-secondary {
            background: rgba(34, 211, 238, 0.1);
            color: #0ea5b7;
        }
        .overview-cards .card-icon.icon-accent {
            background: rgba(245, 158, 11, 0.1);
            color: var(--accent);
        }
        .overview-cards .card-icon.icon-green {
            background: rgba(34, 197, 94, 0.1);
            color: #22c55e;
        }
        .overview-cards .card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .overview-cards .card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Guide Cards ===== */
        .guide-card {
            border: none;
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-color);
        }
        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .guide-card .guide-thumb {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .guide-card .guide-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .guide-thumb img {
            transform: scale(1.06);
        }
        .guide-card .guide-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 14, 31, 0.4) 100%);
        }
        .guide-card .guide-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(11, 14, 31, 0.75);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .guide-card .guide-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .guide-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12.5px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .guide-card .guide-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .guide-card .guide-meta i {
            color: var(--primary);
            font-size: 13px;
        }
        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .guide-card .guide-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 18px;
        }
        .guide-card .guide-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
        }
        .guide-card .guide-author {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .guide-card .guide-author i {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(99, 102, 241, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }
        .guide-card .btn-guide {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(99, 102, 241, 0.08);
            padding: 6px 16px;
            border-radius: 50px;
            transition: var(--transition);
            border: none;
        }
        .guide-card .btn-guide:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Steps / 学习路径 ===== */
        .steps-section {
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 400px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.18) 0%, transparent 70%);
        }
        .steps-section .section-head h2 {
            color: #fff;
        }
        .steps-section .section-head p {
            color: rgba(255, 255, 255, 0.5);
        }
        .steps-section .section-head .sub-tag {
            background: rgba(34, 211, 238, 0.1);
            border-color: rgba(34, 211, 238, 0.2);
            color: var(--secondary);
        }
        .step-item {
            text-align: center;
            padding: 36px 26px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            transition: var(--transition);
            height: 100%;
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-5px);
            border-color: rgba(99, 102, 241, 0.3);
        }
        .step-num {
            font-size: 42px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 10px;
            line-height: 1.2;
        }
        .step-item h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-item p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            margin-bottom: 14px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(99, 102, 241, 0.2);
            box-shadow: var(--shadow);
        }
        .faq-item .faq-q {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 16px;
        }
        .faq-item .faq-a {
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.75;
            padding-left: 26px;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--dark-bg) 0%, #151a38 50%, var(--dark-bg) 100%);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.1;
        }
        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 40px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 28px;
            backdrop-filter: blur(10px);
        }
        .cta-box h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto 30px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 34px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(99, 102, 241, 0.45);
            color: #fff;
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 34px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b0e1f;
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
        }
        .footer-brand {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }
        .footer-brand i {
            color: var(--secondary);
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
            line-height: 1.8;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-links li a i {
            font-size: 12px;
            color: var(--primary);
        }
        .footer-links li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-contact li i {
            color: var(--secondary);
            font-size: 15px;
            width: 20px;
            text-align: center;
        }
        .footer-bottom {
            margin-top: 50px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav-list {
                display: none;
            }
            .header-search {
                display: none;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero-visual img {
                height: 300px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .section-block {
                padding: 60px 0;
            }
            .page-hero {
                padding: 80px 0 80px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-visual {
                margin-top: 40px;
            }
            .hero-visual img {
                height: 240px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .footer-bottom .row {
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .header-right {
                gap: 10px;
            }
            .btn-header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .btn-header-cta i {
                display: none;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .num {
                font-size: 20px;
            }
            .guide-card .guide-thumb {
                height: 170px;
            }
            .cta-box {
                padding: 40px 24px;
                border-radius: 20px;
            }
            .cta-box h2 {
                font-size: 26px;
            }
        }

        /* focus 可访问性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 3px;
        }