/* roulang page: index */
:root {
            --brand-primary: #1A56DB;
            --brand-primary-hover: #1646b5;
            --brand-accent: #0EA5E9;
            --brand-orange: #F97316;
            --brand-dark: #0F172A;
            --brand-gray-bg: #F8FAFC;
            --brand-card-bg: #FFFFFF;
            --brand-alt-bg: #F1F5F9;
            --text-main: #0F172A;
            --text-muted: #475569;
            --text-light: #94A3B8;
            --border-soft: #E2E8F0;
            --shadow-subtle: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
            --shadow-hover: 0 20px 30px -10px rgba(26, 86, 219, 0.15);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-pill: 9999px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--brand-gray-bg);
            color: var(--text-main);
            line-height: 1.68;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        a:hover, a:focus {
            color: var(--brand-primary);
            text-decoration: none;
        }

        .top-trust-bar {
            background-color: #0B132B;
            color: #94A3B8;
            font-size: 0.8125rem;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-trust-bar .trust-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-right: 20px;
        }
        .top-trust-bar .trust-item i {
            color: #38BDF8;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--brand-dark);
            letter-spacing: -0.3px;
        }
        .logo-icon-box {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
        }
        .main-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 28px;
        }
        .main-menu li a {
            font-size: 0.95rem;
            font-weight: 500;
            color: #334155;
            padding: 6px 0;
            position: relative;
        }
        .main-menu li a:hover,
        .main-menu li a.active {
            color: var(--brand-primary);
        }
        .main-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .nav-cta-btn {
            background-color: var(--brand-primary);
            color: #ffffff !important;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.28);
            transition: all 0.25s ease;
        }
        .nav-cta-btn:hover {
            background-color: var(--brand-primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(26, 86, 219, 0.35);
        }

        .sec-wrap {
            padding: 92px 0;
            position: relative;
        }
        .sec-alt {
            background-color: var(--brand-alt-bg);
        }
        .sec-dark {
            background-color: var(--brand-dark);
            color: #F8FAFC;
        }
        .sec-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px;
        }
        .sec-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(26, 86, 219, 0.08);
            color: var(--brand-primary);
            margin-bottom: 14px;
        }
        .sec-dark .sec-tag {
            background: rgba(14, 165, 233, 0.15);
            color: #38BDF8;
        }
        .sec-title {
            font-size: 2.15rem;
            font-weight: 700;
            color: var(--brand-dark);
            line-height: 1.32;
            margin-bottom: 16px;
        }
        .sec-dark .sec-title {
            color: #FFFFFF;
        }
        .sec-desc {
            font-size: 1.025rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }
        .sec-dark .sec-desc {
            color: #94A3B8;
        }

        .hero-banner {
            position: relative;
            background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
            padding: 70px 0 90px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-soft);
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: -150px;
            right: -100px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-h1 {
            font-size: 2.85rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--brand-dark);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-h1 span {
            color: var(--brand-primary);
            background: linear-gradient(120deg, #1A56DB, #0EA5E9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-lead {
            font-size: 1.08rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 30px;
        }
        .hero-action-group {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .btn-primary-lg {
            background-color: var(--brand-primary);
            color: #ffffff !important;
            padding: 14px 34px;
            border-radius: var(--radius-pill);
            font-size: 1.02rem;
            font-weight: 600;
            box-shadow: 0 8px 20px rgba(26, 86, 219, 0.28);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all 0.25s ease;
        }
        .btn-primary-lg:hover {
            background-color: var(--brand-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(26, 86, 219, 0.36);
        }
        .btn-outline-lg {
            border: 2px solid #CBD5E1;
            background: #FFFFFF;
            color: #334155;
            padding: 12px 30px;
            border-radius: var(--radius-pill);
            font-size: 1.02rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all 0.25s ease;
        }
        .btn-outline-lg:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: #F8FAFC;
        }
        .hero-badges-row {
            display: flex;
            align-items: center;
            gap: 24px;
            font-size: 0.85rem;
            color: #64748B;
        }
        .hero-badges-row span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-badges-row i {
            color: #10B981;
        }

        .hero-stage-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.12);
            border: 1px solid var(--border-soft);
            position: relative;
        }
        .stage-media-wrap {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            background-color: #0F172A;
        }
        .stage-media-wrap img {
            width: 100%;
            height: 330px;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .stage-floating-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(8px);
            color: #ffffff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 0 rgba(16, 185, 129, 0.6);
            animation: pulseAnim 2s infinite;
        }
        @keyframes pulseAnim {
            0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
            100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }
        .stage-footer-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid #F1F5F9;
        }
        .stage-meta-left {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .stage-meta-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
        }

        .base-card {
            background-color: var(--brand-card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-subtle);
            padding: 32px 28px;
            transition: all 0.3s ease;
            height: 100%;
            position: relative;
        }
        .base-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #BFDBFE;
        }
        .card-icon-box {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            background: rgba(26, 86, 219, 0.08);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.45rem;
            margin-bottom: 20px;
        }
        .card-heading {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 12px;
        }
        .card-paragraph {
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.68;
            margin: 0;
        }

        .showcase-game-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .showcase-game-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .showcase-cover {
            position: relative;
            overflow: hidden;
            height: 200px;
            background-color: #E2E8F0;
        }
        .showcase-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .showcase-game-card:hover .showcase-cover img {
            transform: scale(1.05);
        }
        .showcase-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 23, 42, 0.7);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
        }
        .showcase-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-title-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        .game-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin: 0;
        }
        .game-score {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--brand-orange);
            font-size: 0.85rem;
            font-weight: 700;
        }
        .game-summary {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
            flex: 1;
        }
        .game-action-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #F8FAFC;
            border: 1px solid #E2E8F0;
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.92rem;
            padding: 10px 0;
            border-radius: 8px;
            transition: all 0.25s ease;
        }
        .game-action-btn:hover {
            background: var(--brand-primary);
            color: #FFFFFF;
            border-color: var(--brand-primary);
        }

        .stat-strip-section {
            background: linear-gradient(135deg, #1A56DB 0%, #0F3BA0 100%);
            padding: 54px 0;
            color: #FFFFFF;
        }
        .stat-item {
            text-align: center;
            padding: 10px 16px;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 4px;
            color: #FFFFFF;
        }
        .stat-label {
            font-size: 0.95rem;
            color: #BFDBFE;
            margin: 0;
        }

        .step-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.3);
        }

        .review-card {
            background: #FFFFFF;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-subtle);
            height: 100%;
        }
        .review-stars {
            color: #F59E0B;
            font-size: 0.9rem;
            margin-bottom: 14px;
        }
        .review-text {
            font-size: 0.94rem;
            color: #334155;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .reviewer-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748B;
            font-weight: 600;
        }
        .reviewer-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin: 0;
        }
        .reviewer-tag {
            font-size: 0.8rem;
            color: #94A3B8;
            margin: 0;
        }

        .news-item-card {
            background: #FFFFFF;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }
        .news-item-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .news-img-box {
            height: 180px;
            position: relative;
            background: #E2E8F0;
        }
        .news-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-content {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date {
            font-size: 0.8rem;
            color: #94A3B8;
            margin-bottom: 8px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-title {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-summary {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        .faq-accordion-box {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-subtle);
            overflow: hidden;
        }
        .faq-row {
            border-bottom: 1px solid var(--border-soft);
        }
        .faq-row:last-child {
            border-bottom: none;
        }
        .faq-question {
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--brand-dark);
            transition: background-color 0.2s ease;
        }
        .faq-question:hover {
            background-color: #F8FAFC;
            color: var(--brand-primary);
        }
        .faq-question i {
            transition: transform 0.25s ease;
            color: #94A3B8;
        }
        .faq-row.active .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }
        .faq-answer {
            padding: 0 28px 22px;
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-row.active .faq-answer {
            display: block;
        }

        .trust-badge-bar {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 20px;
        }
        .trust-badge-card {
            background: #FFFFFF;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .trust-badge-card i {
            font-size: 1.8rem;
            color: var(--brand-primary);
        }
        .trust-badge-card h4 {
            font-size: 0.96rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin: 0 0 4px;
        }
        .trust-badge-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        .bottom-cta-wrap {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
        }
        .bottom-cta-wrap::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 100%;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.2) 0%, rgba(15, 23, 42, 0) 70%);
            pointer-events: none;
        }

        .site-footer {
            background-color: #0B132B;
            color: #94A3B8;
            padding: 72px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
        }
        .footer-col-title {
            color: #FFFFFF;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 22px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background-color: var(--brand-accent);
            border-radius: 2px;
        }
        .footer-links-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links-list li {
            margin-bottom: 12px;
        }
        .footer-links-list li a {
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer-links-list li a:hover {
            color: #38BDF8;
        }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 14px;
            color: #94A3B8;
            line-height: 1.5;
        }
        .footer-contact-item i {
            color: var(--brand-accent);
            margin-top: 4px;
        }
        .footer-bottom-bar {
            margin-top: 56px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.825rem;
            color: #64748B;
        }
        .footer-bottom-bar a {
            color: #64748B;
        }
        .footer-bottom-bar a:hover {
            color: #94A3B8;
        }

        @media screen and (max-width: 1024px) {
            .hero-h1 {
                font-size: 2.35rem;
            }
            .main-menu {
                gap: 16px;
            }
            .sec-wrap {
                padding: 72px 0;
            }
        }
        @media screen and (max-width: 768px) {
            .nav-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 14px 0;
                gap: 12px;
            }
            .main-menu {
                display: none;
            }
            .hero-banner {
                padding: 48px 0 60px;
            }
            .hero-h1 {
                font-size: 1.95rem;
            }
            .hero-lead {
                font-size: 0.98rem;
            }
            .sec-wrap {
                padding: 56px 0;
            }
            .sec-title {
                font-size: 1.7rem;
            }
            .bottom-cta-wrap {
                padding: 40px 24px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }