/* roulang page: index */
:root {
            --primary: #00D9A6;
            --primary-hover: #00FFBE;
            --secondary: #FFC24B;
            --accent: #FF6B4A;
            --bg: #0A1210;
            --card-bg: #111D19;
            --text: #EAF2EE;
            --text-dim: #7E9490;
            --border: rgba(255, 255, 255, 0.12);
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.35);
            --spacing-section: 80px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            font-size: 15px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease, border-color .25s ease, background .25s ease, transform .25s ease, box-shadow .25s ease;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .row {
            max-width: 100%;
            margin: 0;
        }
        .row::before,
        .row::after {
            display: none;
        }
        section {
            position: relative;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
            padding: 0 16px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(0, 217, 166, 0.12);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 20px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-head h2 {
            font-size: 30px;
            line-height: 1.4;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-head p {
            color: var(--text-dim);
            font-size: 15px;
            line-height: 1.7;
        }
        .site-wrap {
            display: flex;
            min-height: 100vh;
        }
        .site-sidebar {
            width: 240px;
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            background: #07100D;
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            z-index: 100;
            padding: 0 16px;
        }
        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 8px;
            border-bottom: 1px solid var(--border);
            flex-shrink: 0;
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(0, 217, 166, 0.2), rgba(0, 217, 166, 0.05));
            border: 1px solid rgba(0, 217, 166, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.3;
            min-width: 0;
        }
        .brand-text strong {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 1px;
        }
        .brand-text span {
            font-size: 12px;
            color: var(--text-dim);
            white-space: nowrap;
        }
        .sidebar-nav {
            flex: 1;
            padding: 24px 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: 12px;
            color: var(--text-dim);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: all .25s ease;
        }
        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .sidebar-nav .nav-link:hover {
            background: rgba(255, 255, 255, 0.04);
            color: var(--text);
        }
        .sidebar-nav .nav-link.active {
            background: rgba(0, 217, 166, 0.08);
            color: var(--primary);
        }
        .sidebar-nav .nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            border-radius: 0 4px 4px 0;
            background: var(--primary);
        }
        .sidebar-footer {
            padding: 20px 8px;
            border-top: 1px solid var(--border);
            color: #5A7069;
            font-size: 12px;
            flex-shrink: 0;
        }
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: #07100D;
            border-bottom: 1px solid var(--border);
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 200;
        }
        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
        }
        .mobile-logo .brand-logo {
            width: 34px;
            height: 34px;
            font-size: 14px;
            border-radius: 10px;
        }
        .mobile-menu-toggle {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--text);
            font-size: 18px;
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #111D19;
            border-bottom: 1px solid var(--border);
            padding: 12px 20px 20px;
            z-index: 199;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel a {
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 15px;
            color: var(--text-dim);
            font-weight: 500;
        }
        .mobile-menu-panel a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text);
        }
        .mobile-menu-panel a.active {
            background: rgba(0, 217, 166, 0.08);
            color: var(--primary);
        }
        .site-main {
            margin-left: 240px;
            width: calc(100% - 240px);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .hero-section {
            min-height: 92vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
            padding: 120px 0 80px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(75deg, rgba(10, 18, 16, 0.92) 0%, rgba(10, 18, 16, 0.75) 45%, rgba(10, 18, 16, 0.4) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(transparent, var(--bg));
            z-index: 2;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 680px;
            margin-left: 8%;
            padding: 0 32px;
        }
        .hero-content h1 {
            font-size: 48px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero-content .hero-sub {
            font-size: 18px;
            color: rgba(234, 242, 238, 0.85);
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-trust {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-dim);
            letter-spacing: .5px;
        }
        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-trust i {
            color: var(--primary);
            font-size: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all .25s ease;
            border: 1px solid transparent;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #0A1210;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 20px rgba(0, 217, 166, 0.4);
            transform: translateY(-2px);
            color: #0A1210;
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 217, 166, 0.06);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #FF8A5E;
            box-shadow: 0 0 24px rgba(255, 107, 74, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-accent:active {
            transform: scale(0.97);
        }
        .btn-lg {
            padding: 18px 52px;
            font-size: 17px;
            border-radius: 12px;
        }
        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 14px;
        }
        .btn-link i {
            transition: transform .25s ease;
        }
        .btn-link:hover i {
            transform: translateX(4px);
        }
        .intro-section {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }
        .play-grid {
            margin-bottom: 24px;
        }
        .play-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .play-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 217, 166, 0.3);
            box-shadow: var(--shadow-hover);
        }
        .play-card-primary .play-card-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .play-card-primary .play-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .play-card:hover .play-card-img img {
            transform: scale(1.03);
        }
        .play-card-primary .play-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent 40%, rgba(17, 29, 25, 0.7));
        }
        .play-card-body {
            padding: 28px;
            position: relative;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .play-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 217, 166, 0.1);
            border: 1px solid rgba(0, 217, 166, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 18px;
            position: relative;
            background-image: radial-gradient(circle at 70% 65%, rgba(0, 217, 166, 0.15) 0%, transparent 50%);
        }
        .play-card-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }
        .play-card-body p {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.75;
            flex: 1;
        }
        .rewards-section {
            padding: var(--spacing-section) 0;
            background: #09130F;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .rewards-grid .columns {
            margin-bottom: 20px;
        }
        .reward-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
            height: 260px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
            box-shadow: var(--shadow);
        }
        .reward-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 217, 166, 0.3);
        }
        .reward-card.locked {
            opacity: 0.75;
        }
        .reward-overlay {
            position: absolute;
            inset: 0;
            background: rgba(10, 18, 16, 0.45);
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: none;
        }
        .reward-card.locked:hover .reward-overlay {
            background: rgba(10, 18, 16, 0.3);
        }
        .reward-badge {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0, 217, 166, 0.1);
            border: 1px solid rgba(0, 217, 166, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 18px;
            position: relative;
            z-index: 3;
        }
        .reward-badge.gold {
            background: rgba(255, 194, 75, 0.1);
            border-color: rgba(255, 194, 75, 0.3);
            color: var(--secondary);
        }
        .reward-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            position: relative;
            z-index: 3;
        }
        .reward-card p {
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 16px;
            position: relative;
            z-index: 3;
            line-height: 1.6;
        }
        .reward-status {
            font-size: 13px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            border-radius: 20px;
            position: relative;
            z-index: 3;
            background: rgba(0, 217, 166, 0.08);
            color: var(--primary);
        }
        .reward-card.locked .reward-status {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-dim);
        }
        .mission-section {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }
        .mission-steps {
            display: flex;
            justify-content: space-between;
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 32px;
            position: relative;
        }
        .mission-steps::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary) 45%, rgba(255, 255, 255, 0.12) 45%, rgba(255, 255, 255, 0.12) 100%);
            border-radius: 2px;
        }
        .mission-step {
            text-align: center;
            position: relative;
            z-index: 2;
            flex: 1;
            padding: 0 8px;
        }
        .step-dot {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 2px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text-dim);
            margin: 0 auto 16px;
            transition: all .3s ease;
        }
        .mission-step.completed .step-dot {
            border-color: var(--primary);
            background: rgba(0, 217, 166, 0.1);
            color: var(--primary);
        }
        .mission-step.active .step-dot {
            border-color: var(--secondary);
            background: rgba(255, 194, 75, 0.1);
            color: var(--secondary);
            box-shadow: 0 0 0 6px rgba(255, 194, 75, 0.1);
        }
        .step-num {
            font-size: 12px;
            color: var(--text-dim);
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .mission-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .mission-step p {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.5;
        }
        .cta-section {
            padding: 100px 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(7, 16, 13, 0.85);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-inner p {
            color: var(--text-dim);
            font-size: 16px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .cta-inner .btn-accent {
            margin-bottom: 24px;
        }
        .cta-note {
            font-size: 13px;
            color: #5A7069;
            margin-top: 16px;
        }
        .news-section {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }
        .news-grid .columns {
            margin-bottom: 24px;
        }
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all .3s ease;
            height: 100%;
            box-shadow: var(--shadow);
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 217, 166, 0.3);
            box-shadow: var(--shadow-hover);
        }
        .news-card a {
            display: block;
            padding: 28px;
            height: 100%;
        }
        .news-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--primary);
            background: rgba(0, 217, 166, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            font-weight: 500;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: #5A7069;
        }
        .news-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-meta i {
            font-size: 13px;
            color: var(--primary);
        }
        .empty-tip {
            background: var(--card-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 60px 32px;
            text-align: center;
            font-size: 15px;
            color: var(--text-dim);
        }
        .faq-section {
            padding: var(--spacing-section) 0 80px;
            background: var(--bg);
        }
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 217, 166, 0.3);
        }
        .faq-item.active {
            border-color: rgba(0, 217, 166, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            gap: 16px;
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-dim);
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.8;
        }
        .site-footer {
            background: #07100D;
            border-top: 1px solid var(--border);
            padding: 64px 0 0;
            margin-top: auto;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .footer-logo .brand-logo {
            width: 32px;
            height: 32px;
            font-size: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.75;
            margin: 0;
        }
        .footer-links h3,
        .footer-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 18px;
        }
        .footer-links a {
            display: block;
            font-size: 14px;
            color: var(--text-dim);
            padding: 5px 0;
            transition: all .25s ease;
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .footer-info p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 32px;
            text-align: center;
            margin-top: 48px;
            font-size: 12px;
            color: #5A7069;
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-bottom a {
            color: #5A7069;
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        @media (max-width: 1023px) {
            .site-sidebar {
                width: 80px;
                padding: 0 10px;
            }
            .brand-text {
                display: none;
            }
            .sidebar-brand {
                justify-content: center;
                padding: 0;
            }
            .sidebar-nav .nav-link {
                justify-content: center;
                padding: 14px 0;
            }
            .sidebar-nav .nav-link span {
                display: none;
            }
            .sidebar-nav .nav-link i {
                font-size: 18px;
            }
            .sidebar-footer {
                text-align: center;
                padding: 16px 0;
                font-size: 10px;
                line-height: 1.5;
            }
            .site-main {
                margin-left: 80px;
                width: calc(100% - 80px);
            }
            .hero-content {
                margin-left: 0;
                padding: 0 40px;
            }
        }
        @media (max-width: 767px) {
            .site-sidebar {
                display: none;
            }
            .site-main {
                margin-left: 0;
                width: 100%;
            }
            .mobile-header {
                display: flex;
            }
            .site-main {
                padding-top: 64px;
            }
            .hero-section {
                min-height: 80vh;
                padding: 80px 0 60px;
            }
            .hero-content {
                padding: 0 24px;
                margin-left: 0;
                max-width: 100%;
            }
            .hero-content h1 {
                font-size: 32px;
                line-height: 1.3;
            }
            .hero-content .hero-sub {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-trust {
                flex-direction: column;
                gap: 12px;
            }
            .container {
                padding: 0 20px;
            }
            .faq-list {
                padding: 0 20px;
            }
            .footer-container {
                padding: 0 20px;
            }
            .footer-bottom {
                padding: 16px 20px;
            }
            .cta-inner {
                padding: 0 20px;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            :root {
                --spacing-section: 48px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .play-card-primary .play-card-img {
                height: 160px;
            }
            .play-card-body {
                padding: 20px;
            }
            .mission-steps {
                flex-direction: column;
                gap: 32px;
                padding: 0 20px;
            }
            .mission-steps::before {
                display: none;
            }
            .mission-step {
                display: flex;
                text-align: left;
                align-items: center;
                gap: 16px;
                padding: 0;
            }
            .step-dot {
                margin: 0;
                flex-shrink: 0;
                width: 48px;
                height: 48px;
                font-size: 18px;
            }
            .mission-step .step-info {
                flex: 1;
            }
            .step-num {
                margin-bottom: 2px;
            }
            .mission-step h3 {
                margin-bottom: 2px;
            }
            .btn-lg {
                padding: 16px 40px;
                font-size: 16px;
                width: 100%;
                max-width: 320px;
            }
            .reward-card {
                height: auto;
                min-height: 220px;
                padding: 28px 20px;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-content .hero-sub {
                font-size: 15px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .section-head p {
                font-size: 14px;
            }
            .news-card a {
                padding: 20px;
            }
            .play-card-body h3 {
                font-size: 18px;
            }
        }

/* roulang page: article */
:root{
    --c-primary:#00D9A6;
    --c-primary-hover:#00FFBE;
    --c-accent:#FFC24B;
    --c-cta:#FF6B4A;
    --c-cta-hover:#FF8266;
    --c-bg:#0A1210;
    --c-card:#111D19;
    --c-text:#EAF2EE;
    --c-muted:#7E9490;
    --c-border:rgba(255,255,255,0.12);
    --c-border-strong:rgba(255,255,255,0.22);
    --radius-card:16px;
    --radius-btn:8px;
    --radius-pill:10px;
    --shadow-card:0 8px 32px rgba(0,0,0,0.25);
    --shadow-hover:0 12px 40px rgba(0,0,0,0.35);
    --sidebar-w:240px;
    --sidebar-w-tablet:80px;
    --topbar-h:64px;
    --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
    font-family:var(--font-main);
    background:var(--c-bg);
    color:var(--c-text);
    line-height:1.75;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;background:none;color:inherit;}
ul,ol{list-style:none;}
::selection{background:rgba(0,217,166,0.25);color:#fff;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#0A1210;}
::-webkit-scrollbar-thumb{background:#2C3E38;border-radius:4px;}
::-webkit-scrollbar-thumb:hover{background:#3D5350;}

.container{width:100%;max-width:1400px;margin:0 auto;padding-left:24px;padding-right:24px;}
.row{max-width:none;width:auto;}

.site-shell{position:relative;min-height:100vh;}
.content-wrap{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}

.sidebar{
    position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
    background:#07100D;border-right:1px solid var(--c-border);
    display:flex;flex-direction:column;z-index:60;
}
.sidebar-brand{
    height:80px;display:flex;align-items:center;padding:0 20px;
    border-bottom:1px solid var(--c-border);
}
.brand-link{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-logo{
    width:40px;height:40px;border-radius:12px;flex-shrink:0;
    background:rgba(0,217,166,0.14);color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;font-size:18px;
}
.brand-name{
    font-size:17px;font-weight:700;color:var(--c-text);
    letter-spacing:0.5px;white-space:nowrap;
}
.sidebar-nav{flex:1;padding:24px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;}
.nav-link{
    display:flex;align-items:center;gap:12px;padding:12px 14px;
    border-radius:12px;color:var(--c-muted);font-size:15px;
    border-left:3px solid transparent;
    transition:all .3s ease;cursor:pointer;
}
.nav-link i{font-size:16px;width:22px;text-align:center;flex-shrink:0;}
.nav-link span{white-space:nowrap;}
.nav-link:hover{background:rgba(255,255,255,0.05);color:var(--c-primary);}
.nav-link:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.nav-link.active{
    background:rgba(0,217,166,0.09);color:var(--c-primary);
    border-left-color:var(--c-primary);font-weight:600;
}
.sidebar-bottom{
    padding:20px 16px;border-top:1px solid var(--c-border);text-align:center;
}
.sidebar-bottom p{color:var(--c-muted);font-size:13px;line-height:1.6;}
.sidebar-bottom span{color:#51655F;font-size:12px;letter-spacing:1px;}

.topbar{display:none;}

.site-main{flex:1;min-height:calc(100vh - 250px);}

.article-hero{
    position:relative;background-size:cover;background-position:center;
    padding:100px 0 72px;border-bottom:1px solid var(--c-border);
}
.article-hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(rgba(10,18,16,0.85),rgba(10,18,16,0.55));
}
.article-hero__inner{position:relative;z-index:2;}

.breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--c-muted);margin-bottom:28px;
}
.breadcrumb a{transition:color .3s;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb-sep{color:#4A5F5A;}
.breadcrumb-current{
    color:var(--c-text);max-width:300px;white-space:nowrap;
    overflow:hidden;text-overflow:ellipsis;
}
.article-header h1{
    font-size:44px;font-weight:700;line-height:1.3;
    margin:14px 0 20px;letter-spacing:0.5px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:16px;}
.article-category{
    display:inline-flex;align-items:center;gap:6px;
    background:rgba(0,217,166,0.12);color:var(--c-primary);
    font-size:13px;padding:5px 14px;border-radius:99px;font-weight:500;
}
.article-category i{font-size:12px;}
.article-date{color:var(--c-muted);font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.article-date i{font-size:13px;color:#5A7069;}

.article-container{padding:56px 0 24px;}
.article-content-wrap{max-width:780px;margin:0 auto;}
.article-content{
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--radius-card);box-shadow:var(--shadow-card);
    padding:44px 40px;
}
.article-content h1{display:none;}
.article-content h2{font-size:26px;font-weight:700;line-height:1.45;margin:36px 0 16px;}
.article-content h3{font-size:20px;font-weight:600;line-height:1.5;margin:28px 0 12px;}
.article-content h4{font-size:17px;font-weight:600;margin:20px 0 10px;}
.article-content p{margin-bottom:24px;}
.article-content p:last-child{margin-bottom:0;}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(0,217,166,0.4);transition:color .3s,border-color .3s;}
.article-content a:hover{color:var(--c-primary-hover);border-color:var(--c-primary-hover);}
.article-content ul{margin:0 0 24px;}
.article-content ul li{position:relative;padding-left:26px;margin-bottom:12px;line-height:1.8;}
.article-content ul li::before{
    content:"";position:absolute;left:2px;top:11px;
    width:8px;height:8px;border-radius:50%;background:var(--c-primary);
    box-shadow:0 0 8px rgba(0,217,166,0.4);
}
.article-content ul li strong{color:var(--c-text);font-weight:600;}
.article-content ol{margin:0 0 24px;padding-left:22px;list-style:decimal;}
.article-content ol li{margin-bottom:12px;line-height:1.8;padding-left:6px;}
.article-content ol li::marker{color:var(--c-primary);font-weight:600;}
.article-content blockquote{
    margin:28px 0;padding:18px 24px;
    border-left:3px solid var(--c-primary);
    background:rgba(0,217,166,0.06);
    border-radius:0 12px 12px 0;color:var(--c-muted);
    font-size:15px;
}
.article-content blockquote p{margin-bottom:8px;}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:12px;margin:24px 0;}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-content hr{border:none;border-top:1px solid var(--c-border);margin:36px 0;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;}
.article-content th,.article-content td{border:1px solid var(--c-border);padding:10px 14px;font-size:14px;}
.article-content th{background:rgba(0,217,166,0.06);color:var(--c-primary);font-weight:600;}

.related-section{padding:48px 0 64px;}
.section-head{margin-bottom:32px;display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.section-title{font-size:30px;font-weight:700;line-height:1.4;}
.section-subtitle{color:var(--c-muted);font-size:14px;}
.recommend-card{
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--radius-card);overflow:hidden;
    box-shadow:var(--shadow-card);height:100%;display:flex;flex-direction:column;
    transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.recommend-card:hover{
    transform:translateY(-4px);
    border-color:rgba(0,217,166,0.3);
    box-shadow:var(--shadow-hover);
}
.recommend-card__img{aspect-ratio:16/10;object-fit:cover;width:100%;background:#1A2A24;}
.recommend-card__body{padding:24px;flex:1;display:flex;flex-direction:column;}
.recommend-card__body h3{font-size:18px;font-weight:600;margin-bottom:10px;transition:color .3s;}
.recommend-card:hover .recommend-card__body h3{color:var(--c-primary);}
.recommend-card__body p{
    font-size:14px;color:var(--c-muted);flex:1;
    margin-bottom:18px;line-height:1.7;
}
.recommend-card__link{
    color:var(--c-primary);font-size:14px;font-weight:500;
    display:inline-flex;align-items:center;gap:8px;transition:gap .3s,color .3s;
}
.recommend-card__link i{transition:transform .3s ease;}
.recommend-card:hover .recommend-card__link i{transform:translateX(4px);}

.article-cta{padding:32px 0 56px;}
.cta-inner{
    background:#07100D;border:1px solid var(--c-border);
    border-radius:20px;padding:56px 40px;text-align:center;
    position:relative;overflow:hidden;
}
.cta-inner::before{
    content:"";position:absolute;right:-80px;top:-80px;
    width:220px;height:220px;border-radius:50%;
    background:radial-gradient(circle,rgba(0,217,166,0.10),transparent 70%);
    pointer-events:none;
}
.cta-inner::after{
    content:"";position:absolute;left:-60px;bottom:-80px;
    width:200px;height:200px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,107,74,0.08),transparent 70%);
    pointer-events:none;
}
.cta-inner h2{font-size:28px;font-weight:700;margin-bottom:10px;position:relative;z-index:1;}
.cta-inner p{color:var(--c-muted);margin-bottom:26px;font-size:15px;position:relative;z-index:1;}
.btn-cta{
    display:inline-block;background:var(--c-cta);color:#fff;
    font-weight:700;font-size:16px;padding:14px 38px;
    border-radius:var(--radius-btn);cursor:pointer;
    transition:all .3s ease;position:relative;z-index:1;
}
.btn-cta:hover{background:var(--c-cta-hover);box-shadow:0 0 24px rgba(255,107,74,0.4);transform:translateY(-2px);}
.btn-cta:active{transform:scale(0.97);}
.btn-cta:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;}

.article-return{padding:8px 0 72px;text-align:center;}
.back-link{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--c-primary);font-weight:500;font-size:15px;
    border:1px solid rgba(0,217,166,0.3);border-radius:var(--radius-btn);
    padding:12px 30px;transition:all .3s ease;cursor:pointer;
}
.back-link i{transition:transform .3s ease;}
.back-link:hover{
    background:rgba(0,217,166,0.1);
    box-shadow:0 0 20px rgba(0,217,166,0.15);
    border-color:rgba(0,217,166,0.5);
}
.back-link:hover i{transform:translateX(-4px);}

.notfound-wrap{padding:120px 24px;text-align:center;max-width:640px;margin:0 auto;}
.notfound-wrap h1{font-size:34px;font-weight:700;margin-bottom:16px;}
.notfound-wrap p{color:var(--c-muted);margin-bottom:12px;font-size:15px;}
.notfound-btn{
    display:inline-block;background:var(--c-primary);color:var(--c-bg);
    font-weight:700;padding:14px 38px;border-radius:var(--radius-btn);
    transition:all .3s ease;margin-top:24px;cursor:pointer;
}
.notfound-btn:hover{background:var(--c-primary-hover);box-shadow:0 0 22px rgba(0,217,166,0.4);transform:translateY(-2px);}
.notfound-btn:active{transform:scale(0.97);}

.site-footer{background:#07100D;border-top:1px solid var(--c-border);padding:56px 0 0;}
.footer-container{width:100%;max-width:1400px;margin:0 auto;padding:0 24px;}
.footer-brand .footer-logo{
    display:flex;align-items:center;gap:10px;
    font-size:18px;font-weight:700;margin-bottom:14px;color:var(--c-text);
}
.footer-brand .brand-logo{width:38px;height:38px;border-radius:11px;}
.footer-brand p{color:var(--c-muted);font-size:14px;line-height:1.85;max-width:360px;}
.footer-links h3,.footer-info h3{
    font-size:16px;color:var(--c-text);font-weight:600;margin-bottom:16px;
}
.footer-links a{
    display:block;color:var(--c-muted);font-size:14px;
    margin-bottom:10px;transition:color .3s,padding-left .3s;
}
.footer-links a:hover{color:var(--c-primary);padding-left:4px;}
.footer-info p{color:var(--c-muted);font-size:14px;line-height:1.8;margin-bottom:12px;}
.footer-bottom{
    border-top:1px solid var(--c-border);margin-top:40px;
    padding:22px 24px;text-align:center;
}
.footer-bottom p{color:#5A7069;font-size:12px;letter-spacing:0.5px;}
.footer-bottom a{color:#7E9490;transition:color .3s;}
.footer-bottom a:hover{color:var(--c-primary);}

@media (min-width:768px) and (max-width:1023px){
    .content-wrap{margin-left:var(--sidebar-w-tablet);}
    .sidebar{width:var(--sidebar-w-tablet);}
    .sidebar-brand{padding:0;justify-content:center;}
    .brand-name{display:none;}
    .sidebar-nav{padding:16px 10px;}
    .nav-link{justify-content:center;padding:14px 0;}
    .nav-link span{display:none;}
    .sidebar-bottom{display:none;}
    .article-hero{padding:80px 0 56px;}
    .article-header h1{font-size:36px;}
    .article-content{padding:36px 30px;}
}

@media (max-width:767px){
    .sidebar{display:none;}
    .content-wrap{margin-left:0;padding-top:var(--topbar-h);}
    .topbar{
        display:flex;position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
        background:#07100D;border-bottom:1px solid var(--c-border);
        align-items:center;justify-content:space-between;
        padding:0 16px;z-index:70;
    }
    .topbar-brand{display:flex;align-items:center;gap:10px;}
    .topbar-brand .brand-name{font-size:16px;font-weight:700;}
    .menu-toggle{
        width:42px;height:42px;border-radius:10px;cursor:pointer;
        display:flex;align-items:center;justify-content:center;
        font-size:19px;color:var(--c-text);transition:background .3s;
    }
    .menu-toggle:hover{background:rgba(255,255,255,0.06);}
    .menu-toggle:focus-visible{outline:2px solid var(--c-primary);}
    .mobile-panel{
        position:fixed;top:var(--topbar-h);left:0;right:0;bottom:0;
        background:#111D19;padding:16px 12px 40px;z-index:65;
        overflow-y:auto;border-top:1px solid var(--c-border);
        transform:translateY(-120%);transition:transform .4s ease;
    }
    .mobile-panel.open{transform:translateY(0);}
    .mobile-panel .sidebar-nav{padding:0;flex:1;}
    .mobile-panel .nav-link{padding:14px 16px;font-size:16px;}
    .mobile-panel .nav-link span{display:inline;}
    .article-hero{padding:48px 0 40px;}
    .article-header h1{font-size:29px;}
    .article-meta{gap:10px;}
    .article-container{padding:36px 0 16px;}
    .article-content{padding:28px 20px;border-radius:14px;}
    .article-content h2{font-size:22px;}
    .article-content h3{font-size:18px;}
    .related-section{padding:36px 0 48px;}
    .section-title{font-size:24px;}
    .cta-inner{padding:40px 22px;}
    .cta-inner h2{font-size:22px;}
    .article-return{padding:8px 0 48px;}
    .notfound-wrap{padding:80px 20px;}
    .notfound-wrap h1{font-size:26px;}
    .site-footer{padding:44px 0 0;}
    .footer-links,.footer-info{margin-top:28px;}
    .footer-brand p{max-width:100%;}
}

/* roulang page: category1 */
:root {
    --primary: #00D9A6;
    --primary-hover: #00FFBE;
    --primary-glow: rgba(0, 217, 166, 0.4);
    --gold: #FFC24B;
    --coral: #FF6B4A;
    --bg-dark: #0A1210;
    --bg-card: #111D19;
    --bg-section: #0E1815;
    --text-main: #EAF2EE;
    --text-muted: #7E9490;
    --border: rgba(255, 255, 255, 0.12);
    --border-light: rgba(255, 255, 255, 0.08);
    --radius-main: 16px;
    --radius-small: 10px;
    --radius-btn: 8px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.35);
    --sidebar-w: 240px;
    --sidebar-w-md: 80px;
    --header-m: 64px;
    --content-max: 1400px;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

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

a {
    color: inherit;
    text-decoration: none;
}

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

ul,
ol {
    list-style-position: outside;
}

h1,
h2,
h3,
h4 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-main);
}

h2.section-title {
    font-size: 30px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-main);
    margin-bottom: 12px;
}

h3.card-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
    color: var(--text-main);
}

h3 {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
    color: var(--text-main);
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.row,
.container {
    max-width: var(--content-max);
    margin-left: auto;
    margin-right: auto;
}

.layout-wrap {
    display: flex;
    min-height: 100vh;
}

.mobile-header {
    display: none;
}

.mobile-menu {
    display: none;
}

.sidebar {
    width: var(--sidebar-w);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    background: var(--bg-card);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width 0.3s ease;
}

.brand-area {
    height: 80px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 28px;
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.brand-logo {
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--bg-dark);
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.brand-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    white-space: nowrap;
}

.sidebar-nav {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-btn);
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    transition: all 0.25s ease;
    line-height: 1.4;
    cursor: pointer;
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 15px;
    flex-shrink: 0;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.nav-link.active {
    background: rgba(0, 217, 166, 0.1);
    color: var(--primary);
}

.sidebar-nav .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    border-radius: 4px;
    background: var(--primary);
}

.sidebar-footer {
    padding: 20px 28px;
    border-top: 1px solid var(--border-light);
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.sidebar-footer i {
    display: none;
    font-size: 14px;
    color: var(--text-muted);
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-w);
    min-width: 0;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
}

.main-section {
    padding: 80px 0;
}

.hero-section {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(10, 18, 16, 0.92), rgba(10, 18, 16, 0.55)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    padding: 80px 0;
}

.hero-inner {
    max-width: var(--content-max);
    margin: 0 auto;
    width: 100%;
    padding: 0 32px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 217, 166, 0.12);
    border: 1px solid rgba(0, 217, 166, 0.3);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 32px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 44px;
    line-height: 1.3;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
    max-width: 720px;
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(234, 242, 238, 0.85);
    line-height: 1.8;
    max-width: 640px;
    margin-bottom: 32px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    padding: 14px 36px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.25s ease;
    border: none;
    outline: none;
    line-height: 1.4;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 0 20px var(--primary-glow);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: scale(0.97);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-coral {
    background: var(--coral);
    color: #fff;
    font-size: 16px;
    padding: 16px 48px;
}

.btn-coral:hover {
    background: #ff7a5a;
    box-shadow: 0 0 20px rgba(255, 107, 74, 0.4);
    transform: translateY(-2px);
}

.btn-coral:active {
    transform: scale(0.97);
}

.hero-metrics {
    display: flex;
    gap: 48px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.metric-item {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.metric-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
}

.metric-label {
    font-size: 13px;
    color: rgba(234, 242, 238, 0.7);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

.section-header .section-desc {
    margin-top: 8px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-main);
    box-shadow: var(--shadow-card);
    padding: 28px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 217, 166, 0.3);
    box-shadow: var(--shadow-hover);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 16px;
    background: rgba(0, 217, 166, 0.1);
    color: var(--primary);
}

.card-icon.gold {
    background: rgba(255, 194, 75, 0.1);
    color: var(--gold);
}

.card-icon.coral {
    background: rgba(255, 107, 74, 0.1);
    color: var(--coral);
}

.card-text {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 0;
}

.guide-section {
    padding: 80px 0;
}

.visual-media {
    border-radius: var(--radius-main);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    position: relative;
}

.visual-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

.visual-content .section-tag {
    display: inline-block;
    margin-bottom: 12px;
}

.visual-content h3 {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--text-main);
}

.visual-content p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 16px;
}

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

.visual-list li {
    position: relative;
    padding-left: 28px;
    color: var(--text-main);
    font-size: 15px;
    margin-bottom: 10px;
    line-height: 1.6;
}

.visual-list li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--primary);
    font-size: 15px;
}

.steps-section {
    background: var(--bg-section);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-main);
    padding: 28px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-card);
}

.step-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 217, 166, 0.3);
    box-shadow: var(--shadow-hover);
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 217, 166, 0.1);
    color: var(--primary);
    font-size: 15px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.step-card h3 {
    margin-bottom: 8px;
}

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

.faq-wrap {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.open {
    border-color: rgba(0, 217, 166, 0.3);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-main);
    line-height: 1.5;
    transition: color 0.2s ease;
}

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

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--primary);
    transition: transform 0.3s ease;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer {
    max-height: 400px;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
}

.cta-section {
    background: var(--bg-card);
    border-top: 1px solid var(--border-light);
    padding: 64px 32px;
    text-align: center;
}

.cta-box {
    max-width: 640px;
    margin: 0 auto;
}

.cta-box h2 {
    font-size: 30px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
}

.cta-box p {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.site-footer {
    background: #07100D;
    padding: 64px 0 0;
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.footer-container {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 32px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.75;
    max-width: 360px;
    margin-bottom: 0;
}

.footer-links h3,
.footer-info h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
}

.footer-links a {
    display: block;
    padding: 6px 0;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
    transition: color 0.2s ease;
}

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

.footer-info p {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.footer-bottom {
    background: #050C0A;
    border-top: 1px solid var(--border-light);
    padding: 24px 32px;
    text-align: center;
    margin-top: 48px;
    color: #5A7069;
    font-size: 12px;
}

.footer-bottom a {
    color: #5A7069;
    transition: color 0.2s ease;
}

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

@media (max-width: 1023px) {
    .sidebar {
        width: var(--sidebar-w-md);
    }

    .main-content {
        margin-left: var(--sidebar-w-md);
    }

    .brand-area {
        justify-content: center;
        padding: 0;
    }

    .brand-name {
        display: none;
    }

    .sidebar-nav {
        padding: 16px 10px;
    }

    .nav-link {
        justify-content: center;
        padding: 14px 0;
    }

    .nav-link span {
        display: none;
    }

    .nav-link i {
        font-size: 18px;
        width: auto;
    }

    .sidebar-footer {
        text-align: center;
        padding: 16px 8px;
    }

    .sidebar-footer p {
        display: none;
    }

    .sidebar-footer i {
        display: block;
    }

    .hero-title {
        font-size: 36px;
    }

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

@media (max-width: 767px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
        padding-top: var(--header-m);
    }

    .mobile-header {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--header-m);
        background: var(--bg-card);
        border-bottom: 1px solid var(--border-light);
        z-index: 1100;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
    }

    .mobile-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        color: var(--text-main);
        font-size: 16px;
    }

    .hamburger {
        background: none;
        border: 1px solid var(--border);
        color: var(--text-main);
        width: 40px;
        height: 40px;
        border-radius: 8px;
        cursor: pointer;
        font-size: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.2s ease;
    }

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

    .mobile-menu {
        display: none;
        position: fixed;
        top: var(--header-m);
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border);
        padding: 16px;
        z-index: 1090;
        box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
    }

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

    .mobile-menu .nav-link {
        padding: 14px 16px;
        color: var(--text-muted);
    }

    .mobile-menu .nav-link.active {
        color: var(--primary);
        background: rgba(0, 217, 166, 0.1);
    }

    .hero-section {
        min-height: 480px;
        padding: 48px 0;
    }

    .hero-inner {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 30px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-metrics {
        gap: 24px;
        margin-top: 32px;
    }

    .main-section {
        padding: 48px 16px;
    }

    .guide-section {
        padding: 48px 16px;
    }

    .overview-section .columns,
    .guide-section .columns {
        margin-bottom: 24px;
    }

    .overview-section .columns:last-child,
    .guide-section .columns:last-child {
        margin-bottom: 0;
    }

    .section-title,
    .cta-box h2 {
        font-size: 24px;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .visual-content h3 {
        font-size: 20px;
    }

    .visual-content p {
        font-size: 15px;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .faq-question {
        padding: 16px 20px;
        font-size: 15px;
    }

    .faq-answer-inner {
        padding: 0 20px 16px;
    }

    .cta-section {
        padding: 48px 16px;
    }

    .footer-container {
        padding: 0 20px;
    }

    .footer-bottom {
        padding: 20px;
        margin-top: 32px;
    }

    .footer-links,
    .footer-info {
        margin-top: 24px;
    }
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #00D9A6;
            --primary-hover: #00FFBE;
            --gold: #FFC24B;
            --coral: #FF6B4A;
            --bg-deep: #0A1210;
            --card-bg: #111D19;
            --text-main: #EAF2EE;
            --text-sub: #7E9490;
            --border-color: rgba(255, 255, 255, 0.12);
            --radius-main: 16px;
            --radius-tag: 10px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.35);
            --space-section: 80px;
            --space-card: 28px;
            --transition: all 0.3s ease;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        p {
            margin: 0;
            padding: 0;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        /* ============ 整体布局 ============ */
        .layout-wrap {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: 240px;
            flex-shrink: 0;
            background: #0B1512;
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 100;
        }

        .main-area {
            flex: 1;
            margin-left: 240px;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        /* ============ 侧边导航品牌区 ============ */
        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 22px;
            border-bottom: 1px solid var(--border-color);
        }

        .brand-logo {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 16px;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        /* ============ 侧边导航链接 ============ */
        .sidebar-nav {
            flex: 1;
            padding: 24px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 16px;
            border-radius: 12px;
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: var(--transition);
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-main);
        }

        .nav-link.active {
            background: rgba(0, 217, 166, 0.1);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            border-radius: 4px;
            background: var(--primary);
        }

        .sidebar-copyright {
            padding: 18px 22px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: #5A7069;
            line-height: 1.6;
        }

        /* ============ 移动端顶部导航 ============ */
        .mobile-header {
            display: none;
            height: 64px;
            background: #0B1512;
            border-bottom: 1px solid var(--border-color);
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            position: sticky;
            top: 0;
            z-index: 200;
        }

        .mobile-toggle {
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 20px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: #111D19;
            border-bottom: 1px solid var(--border-color);
            padding: 12px;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
        }

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

        .mobile-menu .nav-link {
            padding: 14px 20px;
            border-radius: 12px;
        }

        .mobile-brands {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ============ 内容区公共容器 ============ */
        .page-main {
            flex: 1;
            padding: 0;
        }

        /* ============ Hero 区 ============ */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(10, 18, 16, 0.9) 0%, rgba(10, 18, 16, 0.65) 50%, rgba(10, 18, 16, 0.5) 100%),
                url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 96px 0 88px;
        }

        .page-hero-inner {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 48px 0 48px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 217, 166, 0.12);
            border: 1px solid rgba(0, 217, 166, 0.35);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 22px;
            letter-spacing: 0.5px;
        }

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

        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 18px;
            max-width: 640px;
        }

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

        .page-hero .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(234, 242, 238, 0.85);
            max-width: 600px;
            margin-bottom: 34px;
        }

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

        /* ============ 按钮规范 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            text-align: center;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--bg-deep);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 20px rgba(0, 217, 166, 0.4);
            transform: translateY(-2px);
            color: var(--bg-deep);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-main);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--coral);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 4px 20px rgba(255, 107, 74, 0.35);
        }

        .btn-accent:hover {
            background: #FF8A66;
            box-shadow: 0 6px 28px rgba(255, 107, 74, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-link-arrow {
            background: none;
            border: none;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

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

        /* ============ 通用板块结构 ============ */
        .content-section {
            max-width: 1400px;
            margin: 0 auto;
            padding: 80px 48px;
        }

        .section-label {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .section-label::before {
            content: "";
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 16px;
        }

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

        /* ============ 规则总览卡片 ============ */
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 16px;
        }

        .overview-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-main);
            padding: var(--space-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .overview-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 217, 166, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .overview-card .oc-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(0, 217, 166, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .overview-card .oc-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .overview-card .oc-text {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ============ 图文交错区块 ============ */
        .alternating-section {
            padding: 80px 0;
            max-width: 1400px;
            margin: 0 auto;
        }

        .alternating-section .row {
            align-items: center;
        }

        .alt-image {
            border-radius: var(--radius-main);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .alt-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--radius-main);
            transition: transform 0.6s ease;
        }

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

        .alt-content {
            padding: 20px 0 20px 24px;
        }

        .alt-content-right {
            padding: 20px 24px 20px 0;
        }

        .alt-content .label {
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .alt-content .label i {
            font-size: 14px;
        }

        .alt-content h3 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 14px;
        }

        .alt-content p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .alt-list {
            margin-top: 10px;
        }

        .alt-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.6;
        }

        .alt-list li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ============ 活动规则三卡 ============ */
        .rules-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .rule-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-main);
            padding: var(--space-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            text-align: left;
        }

        .rule-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 194, 75, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .rule-card .rc-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--gold);
            opacity: 0.9;
            margin-bottom: 12px;
            font-family: "Georgia", sans-serif;
        }

        .rule-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .rule-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* ============ 流程/步骤 ============ */
        .steps-section {
            background: #0B1512;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .steps-section .content-section {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            position: relative;
            padding: 24px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-main);
            transition: var(--transition);
        }

        .step-item:hover {
            border-color: rgba(0, 217, 166, 0.35);
            transform: translateY(-4px);
        }

        .step-item .step-num {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: var(--bg-deep);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ============ FAQ 手风琴 ============ */
        .faq-section {
            max-width: 1000px;
            margin: 0 auto;
            padding: 80px 48px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 217, 166, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.3s ease, background 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 217, 166, 0.15);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* ============ CTA ============ */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, rgba(10, 18, 16, 0.92), rgba(10, 18, 16, 0.7)),
                url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 90px 20px;
            text-align: center;
        }

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

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(234, 242, 238, 0.8);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .cta-inner .hero-btns {
            justify-content: center;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #07100D;
            padding-top: 60px;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 48px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
        }

        .footer-brand p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links h3,
        .footer-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
            width: fit-content;
        }

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

        .footer-info p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            text-align: center;
            padding: 18px 20px;
            margin-top: 50px;
        }

        .footer-bottom p {
            color: #5A7069;
            font-size: 12px;
        }

        .footer-bottom a {
            color: #5A7069;
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1023px) {
            .sidebar {
                width: 80px;
            }

            .sidebar-brand .brand-name,
            .sidebar-nav .nav-link span:not(.sr-only),
            .sidebar-copyright {
                display: none;
            }

            .sidebar-brand {
                justify-content: center;
                padding: 0 10px;
            }

            .sidebar-nav {
                padding: 20px 10px;
                align-items: center;
            }

            .nav-link {
                justify-content: center;
                padding: 14px;
            }

            .nav-link i {
                width: auto;
                font-size: 18px;
            }

            .nav-link.active::before {
                left: -10px;
            }

            .main-area {
                margin-left: 80px;
            }

            .page-hero-inner,
            .content-section,
            .faq-section {
                padding-left: 32px;
                padding-right: 32px;
            }

            .footer-container {
                padding: 0 32px;
            }

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

            .rules-card-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

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

        @media (max-width: 767px) {
            .layout-wrap {
                flex-direction: column;
            }

            .sidebar {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .main-area {
                margin-left: 0;
            }

            .page-hero {
                padding: 64px 0 56px;
            }

            .page-hero-inner {
                padding-left: 20px;
                padding-right: 20px;
            }

            .page-hero h1 {
                font-size: 30px;
                line-height: 1.35;
            }

            .page-hero .hero-desc {
                font-size: 15px;
            }

            .content-section {
                padding: 48px 20px;
            }

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

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

            .rules-card-grid {
                grid-template-columns: 1fr;
            }

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

            .faq-section {
                padding: 48px 20px;
            }

            .cta-section {
                padding: 60px 20px;
            }

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

            .footer-container {
                padding: 0 20px;
            }

            .footer-bottom {
                margin-top: 36px;
            }

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

            .alt-content-right {
                padding: 20px 0 0 0;
            }

            .alternating-section .row .columns {
                padding-left: 20px;
                padding-right: 20px;
            }

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

            .hero-btns .btn {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }

            .section-title {
                font-size: 21px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 0 18px 16px;
            }

            .content-section {
                padding: 40px 16px;
            }

            .page-hero-inner {
                padding-left: 16px;
                padding-right: 16px;
            }

            .overview-card,
            .rule-card {
                padding: 22px;
            }

            .mobile-header {
                padding: 0 12px;
            }
        }

        /* ============ 焦点样式 ============ */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        /* ============ Foundation 默认样式覆盖 ============ */
        .row {
            max-width: none;
        }

        .columns {
            padding-left: 15px;
            padding-right: 15px;
        }

        button,
        .button {
            -webkit-appearance: none;
            appearance: none;
        }

/* roulang page: category2 */
:root {
            --primary: #00D9A6;
            --primary-bright: #00FFBE;
            --accent: #FFC24B;
            --cta: #FF6B4A;
            --bg-dark: #0A1210;
            --bg-sidebar: #07100D;
            --card-bg: #111D19;
            --text-main: #EAF2EE;
            --text-sub: #7E9490;
            --border-subtle: rgba(255, 255, 255, 0.12);
            --border-light: rgba(255, 255, 255, 0.04);
            --radius-card: 16px;
            --radius-tag: 10px;
            --radius-btn: 8px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.35);
            --space-section: 80px;
            --space-mobile: 48px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        .grid-container {
            max-width: 1400px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .page-section {
            padding: var(--space-section) 0;
            position: relative;
        }

        .section-heading {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-heading .tagline {
            display: inline-block;
            background: rgba(0, 217, 166, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 16px;
        }

        .section-heading h2,
        .showcase-text h2,
        .faq-section h2,
        .cta-panel h2,
        .intro-section h2 {
            font-size: 30px;
            line-height: 1.4;
            font-weight: 600;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }

        .section-heading p {
            color: var(--text-sub);
            font-size: 15px;
            margin-top: 12px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--bg-dark) !important;
        }

        .btn-primary:hover {
            background: var(--primary-bright);
            box-shadow: 0 0 20px rgba(0, 217, 166, 0.4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-main) !important;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary) !important;
            box-shadow: 0 0 16px rgba(0, 217, 166, 0.15);
        }

        .btn-cta {
            background: var(--cta);
            color: #fff !important;
            padding: 16px 48px;
            font-size: 17px;
            box-shadow: 0 8px 24px rgba(255, 107, 74, 0.35);
        }

        .btn-cta:hover {
            background: #ff835f;
            box-shadow: 0 8px 32px rgba(255, 107, 74, 0.5);
            transform: translateY(-2px);
        }

        .btn-cta:active {
            transform: scale(0.97);
        }

        .btn-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            background: none;
            border: none;
            cursor: pointer;
            text-decoration: none;
            padding: 0;
            transition: gap 0.3s ease;
        }

        .btn-arrow:hover {
            gap: 14px;
            color: var(--primary-bright);
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 240px;
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-light);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.35s ease, width 0.3s ease;
        }

        .sidebar-brand {
            height: 80px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 22px;
            border-bottom: 1px solid var(--border-light);
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(0, 217, 166, 0.25), rgba(255, 194, 75, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            border: 1px solid rgba(0, 217, 166, 0.2);
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: 1px;
        }

        .brand-name span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-sub);
            letter-spacing: 0.5px;
            margin-top: -2px;
        }

        .sidebar-nav {
            flex: 1;
            padding: 24px 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 24px;
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-link span {
            transition: opacity 0.2s ease;
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-main);
        }

        .nav-link.active {
            background: rgba(0, 217, 166, 0.06);
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .sidebar-footer {
            padding: 20px 22px;
            border-top: 1px solid var(--border-light);
            font-size: 12px;
            color: #5A7069;
            line-height: 1.6;
        }

        .sidebar-footer a {
            color: #6b8f86;
        }

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

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-light);
            z-index: 1100;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-burger {
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 20px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            transition: background 0.3s ease;
        }

        .mobile-burger:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            font-size: 18px;
            font-weight: 700;
            text-decoration: none;
        }

        .mobile-brand .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 14px;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1050;
            backdrop-filter: blur(2px);
        }

        .sidebar-overlay.visible {
            display: block;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: 240px;
            min-height: 100vh;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(to right, rgba(10, 18, 16, 0.92), rgba(10, 18, 16, 0.55)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
            pointer-events: none;
        }

        .hero-content {
            max-width: 680px;
            padding: 0 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 217, 166, 0.12);
            border: 1px solid rgba(0, 217, 166, 0.25);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 20px;
        }

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

        .hero-content h1 {
            font-size: 44px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .hero-content h1 .highlight {
            color: var(--primary);
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(234, 242, 238, 0.85);
            margin-bottom: 32px;
        }

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

        .hero-meta {
            display: flex;
            gap: 20px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(234, 242, 238, 0.6);
        }

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

        /* ===== Intro + Stats ===== */
        .intro-section {
            padding-top: 90px;
        }

        .intro-text p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 16px;
            line-height: 1.9;
        }

        .intro-text strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .stat-card:hover {
            border-color: rgba(0, 217, 166, 0.3);
            transform: translateY(-4px);
        }

        .stat-card .stat-number {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 6px;
        }

        /* ===== Activity Cards ===== */
        .activity-types-section {
            background: rgba(0, 0, 0, 0.18);
        }

        .activity-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
            height: 100%;
        }

        .activity-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 217, 166, 0.3);
            box-shadow: var(--shadow-card-hover);
        }

        .activity-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        .activity-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 217, 166, 0.1);
            border: 1px solid rgba(0, 217, 166, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 20px;
        }

        .activity-card .card-tag {
            display: inline-block;
            background: rgba(0, 217, 166, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 14px;
        }

        .activity-card h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .activity-card p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .activity-card .card-link {
            margin-top: 16px;
        }

        .featured-card {
            min-height: 340px;
            display: flex;
            flex-direction: column;
        }

        .featured-card .card-icon {
            width: 56px;
            height: 56px;
            font-size: 22px;
        }

        .featured-card h3 {
            font-size: 24px;
        }

        .small-card {
            min-height: 152px;
            margin-bottom: 16px;
        }

        .small-card .card-icon {
            width: 40px;
            height: 40px;
            font-size: 17px;
            margin-bottom: 12px;
        }

        .small-card h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .small-card p {
            font-size: 13px;
            line-height: 1.6;
        }

        .horizontal-card {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-top: 16px;
        }

        .horizontal-card .card-icon {
            width: 52px;
            height: 52px;
            font-size: 22px;
            margin-bottom: 0;
            flex-shrink: 0;
        }

        .horizontal-card .horizontal-body {
            flex: 1;
        }

        .horizontal-card h3 {
            margin-bottom: 6px;
        }

        /* ===== Steps ===== */
        .process-section {
            background: linear-gradient(180deg, var(--bg-dark), rgba(17, 29, 25, 0.5));
        }

        .steps-wrapper {
            display: flex;
            gap: 16px;
            justify-content: space-between;
            margin-top: 40px;
        }

        .step-item {
            flex: 1;
            text-align: center;
            padding: 28px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            transition: transform 0.3s ease, border-color 0.3s ease;
            position: relative;
        }

        .step-item:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 194, 75, 0.3);
        }

        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 194, 75, 0.12);
            border: 1px solid rgba(255, 194, 75, 0.3);
            color: var(--accent);
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 1;
        }

        .step-item::after {
            content: '';
            position: absolute;
            top: 47px;
            right: -10px;
            width: 16px;
            height: 2px;
            background: rgba(255, 194, 75, 0.3);
        }

        .step-item:last-child::after {
            display: none;
        }

        .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ===== Showcase ===== */
        .showcase-row {
            margin-bottom: 60px;
        }

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

        .showcase-text {
            padding: 20px 0;
        }

        .showcase-text h2 {
            margin-bottom: 16px;
        }

        .showcase-text p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 20px;
        }

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

        .showcase-features li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-main);
            border-bottom: 1px solid var(--border-light);
        }

        .showcase-features li:last-child {
            border-bottom: none;
        }

        .showcase-features li i {
            color: var(--primary);
            font-size: 15px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .showcase-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            position: relative;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .showcase-image img {
            width: 100%;
            min-height: 280px;
            object-fit: cover;
        }

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

        .showcase-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 18, 16, 0.3), transparent 60%);
            pointer-events: none;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: rgba(0, 0, 0, 0.18);
        }

        .narrow-container {
            max-width: 860px;
        }

        .faq-list {
            margin-top: 32px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(0, 217, 166, 0.3);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            transition: color 0.3s ease;
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--text-sub);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0 22px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background-image: linear-gradient(135deg, rgba(0, 217, 166, 0.08), rgba(255, 194, 75, 0.04)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }

        .cta-panel {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            background: rgba(10, 18, 16, 0.8);
            border: 1px solid var(--border-subtle);
            border-radius: 24px;
            padding: 56px 40px;
            backdrop-filter: blur(6px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }

        .cta-panel h2 {
            font-size: 32px;
            margin-bottom: 16px;
        }

        .cta-panel p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 32px;
        }

        .cta-panel .btn {
            margin-bottom: 16px;
        }

        .cta-note {
            display: block;
            font-size: 13px;
            color: rgba(126, 148, 144, 0.8);
            margin-top: 12px;
        }

        .cta-note i {
            color: var(--accent);
            margin-right: 6px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-light);
            padding-top: 60px;
        }

        .footer-container {
            max-width: 1400px;
            padding: 0 24px;
            margin: 0 auto;
        }

        .footer-brand .footer-logo,
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-logo .brand-icon {
            width: 34px;
            height: 34px;
            font-size: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-left: 44px;
            margin-top: -8px;
        }

        .footer-links h3,
        .footer-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-links a {
            display: block;
            color: var(--text-sub);
            font-size: 14px;
            padding: 6px 0;
            transition: color 0.3s ease, padding-left 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

        .footer-info p {
            color: var(--text-sub);
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding: 20px 0;
            text-align: center;
            margin-top: 40px;
            background: rgba(0, 0, 0, 0.2);
        }

        .footer-bottom p {
            font-size: 12px;
            color: #5A7069;
            line-height: 1.6;
            margin: 0;
        }

        .footer-bottom a {
            color: #6b8f86;
        }

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

        /* ===== Responsive ===== */
        @media (min-width: 768px) and (max-width: 1023px) {
            .sidebar {
                width: 80px;
            }

            .sidebar-brand {
                padding: 0 12px;
            }

            .brand-name {
                display: none;
            }

            .nav-link {
                padding: 14px 0;
                justify-content: center;
                gap: 0;
            }

            .nav-link span {
                display: none;
            }

            .nav-link i {
                font-size: 19px;
            }

            .nav-link.active {
                border-left-width: 3px;
            }

            .sidebar-footer {
                padding: 20px 8px;
                text-align: center;
                font-size: 10px;
            }

            .sidebar-footer span {
                display: none;
            }

            .main-content {
                margin-left: 80px;
            }

            .hero-content h1 {
                font-size: 38px;
            }
        }

        @media (max-width: 767px) {
            .mobile-header {
                display: flex;
            }

            .sidebar {
                transform: translateX(-100%);
                width: 240px !important;
            }

            .sidebar.mobile-open {
                transform: translateX(0);
            }

            .sidebar .brand-name {
                display: block;
            }

            .sidebar .nav-link {
                padding: 13px 24px;
                justify-content: flex-start;
                gap: 14px;
            }

            .sidebar .nav-link span {
                display: inline;
            }

            .sidebar .nav-link i {
                font-size: 16px;
            }

            .sidebar .sidebar-footer {
                padding: 20px 22px;
                text-align: left;
                font-size: 12px;
            }

            .main-content {
                margin-left: 0;
                padding-top: 64px;
            }

            .hero-section {
                min-height: 460px;
                padding: 60px 0;
            }

            .hero-content h1 {
                font-size: 34px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

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

            .hero-actions .btn {
                justify-content: center;
            }

            .hero-meta {
                gap: 12px;
            }

            .page-section {
                padding: var(--space-mobile) 0;
            }

            .section-heading h2,
            .showcase-text h2,
            .faq-section h2,
            .cta-panel h2,
            .intro-section h2 {
                font-size: 25px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-card {
                padding: 18px 12px;
            }

            .stat-card .stat-number {
                font-size: 24px;
            }

            .activity-card {
                padding: 20px;
                margin-bottom: 16px;
            }

            .horizontal-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .horizontal-card .card-icon {
                margin-bottom: 0;
            }

            .steps-wrapper {
                flex-direction: column;
                gap: 12px;
            }

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

            .showcase-row {
                margin-bottom: 40px;
            }

            .showcase-text {
                padding: 0 0 20px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }

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

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

            .footer-brand p {
                margin-left: 0;
            }

            .grid-container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

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

            .step-item {
                padding: 20px 16px;
            }

            .cta-panel {
                padding: 32px 20px;
            }

            .footer-bottom p {
                padding: 0 16px;
            }
        }