/* roulang page: index */
:root {
            --primary: #0284C7;
            --primary-dark: #0369A1;
            --primary-deep: #0B0F19;
            --accent-green: #10B981;
            --accent-orange: #F97316;
            --accent-gold: #EAB308;
            --bg-light: #F8FAFC;
            --bg-card: #FFFFFF;
            --text-main: #0F172A;
            --text-muted: #64748B;
            --border-light: rgba(226, 232, 240, 0.9);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-pill: 9999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
            --shadow-hover: 0 20px 30px -10px rgba(2, 132, 199, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            width: 100%;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部公告栏 */
        .top-bar {
            background: #021226;
            color: #94A3B8;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-bar-badge {
            background: var(--accent-orange);
            color: #fff;
            padding: 2px 8px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 600;
            margin-right: 8px;
        }

        /* 导航栏 */
        .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-light);
            box-shadow: var(--shadow-sm);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, #10B981 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 20px;
        }
        .nav-links {
            display: flex;
            gap: 28px;
            list-style: none;
            align-items: center;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 15px;
            color: #334155;
            position: relative;
            padding: 6px 0;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-cta-btn {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 22px !important;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* 徽章通用 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            line-height: 1;
        }
        .badge-cyan {
            background: rgba(2, 132, 199, 0.1);
            color: var(--primary);
            border: 1px solid rgba(2, 132, 199, 0.2);
        }
        .badge-gold {
            background: rgba(234, 179, 8, 0.15);
            color: #B45309;
            border: 1px solid rgba(234, 179, 8, 0.3);
        }
        .badge-green {
            background: rgba(16, 185, 129, 0.12);
            color: var(--accent-green);
        }

        /* 通用板块基础 */
        section {
            padding: 85px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 50px auto;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            margin: 12px 0 16px 0;
            letter-spacing: -0.5px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块1：Hero 黑金俱乐部视觉 */
        .hero-section {
            padding: 60px 0 90px 0;
            background: radial-gradient(circle at 80% 20%, #1e293b 0%, #0b0f19 80%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: url('/assets/images/69f11e1692cbc381.png') center/cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-content h1 {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.25;
            margin: 18px 0;
            background: linear-gradient(135deg, #FFFFFF 30%, #BAE6FD 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 16px;
            color: #94A3B8;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
            margin-bottom: 35px;
        }
        .btn-gold {
            background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
            color: #000;
            font-weight: 700;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 18px rgba(245, 158, 11, 0.4);
            display: inline-block;
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, #FBBF24 0%, #F59E0B 100%);
            transform: translateY(-2px);
        }
        .btn-outline-white {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }
        .hero-stats-row {
            display: flex;
            gap: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
        }
        .hero-stat-item h3 {
            font-size: 26px;
            font-weight: 800;
            color: #38BDF8;
        }
        .hero-stat-item p {
            font-size: 13px;
            color: #64748B;
        }
        /* 黑金尊享卡 */
        .vip-club-card {
            background: linear-gradient(145deg, #1E293B 0%, #0F172A 100%);
            border: 1px solid rgba(234, 179, 8, 0.35);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
            position: relative;
        }
        .vip-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
        }
        .vip-level-tag {
            background: linear-gradient(90deg, #F59E0B, #EAB308);
            color: #000;
            font-weight: 800;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 12px;
        }
        .vip-perks-list {
            list-style: none;
            margin-bottom: 24px;
        }
        .vip-perks-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: #CBD5E1;
            margin-bottom: 12px;
        }
        .vip-perks-list li span {
            color: var(--accent-gold);
            font-weight: bold;
        }
        .vip-card-btn {
            width: 100%;
            text-align: center;
            background: #fff;
            color: #0F172A;
            font-weight: 700;
            padding: 12px 0;
            border-radius: var(--radius-md);
            display: block;
            margin-top: 15px;
        }
        .vip-card-btn:hover {
            background: #F1F5F9;
        }

        /* 板块2：已上线核心功能 */
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-box {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(2, 132, 199, 0.4);
        }
        .feature-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(2, 132, 199, 0.15) 0%, rgba(16, 185, 129, 0.15) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .feature-box h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .feature-box p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 18px;
        }
        .feature-badge-data {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: #F0F9FF;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            display: inline-block;
        }

        /* 板块3：痛点与解决方案 (双栏) */
        .pain-solution-sec {
            background: #F1F5F9;
        }
        .pain-solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .pain-card {
            background: #fff;
            padding: 36px;
            border-radius: var(--radius-lg);
            border-left: 6px solid #EF4444;
            box-shadow: var(--shadow-sm);
        }
        .sol-card {
            background: #fff;
            padding: 36px;
            border-radius: var(--radius-lg);
            border-left: 6px solid var(--accent-green);
            box-shadow: var(--shadow-sm);
        }
        .pain-item, .sol-item {
            margin-bottom: 20px;
        }
        .pain-item h4, .sol-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .pain-item p, .sol-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块4：热门互动专区 */
        .hot-zones-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .zone-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .zone-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .zone-img {
            height: 200px;
            width: 100%;
            object-fit: cover;
        }
        .zone-body {
            padding: 24px;
        }
        .zone-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .zone-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .zone-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
            font-size: 13px;
            color: #94A3B8;
        }

        /* 板块5：深色竞技理念区 */
        .philosophy-sec {
            background: #0B0F19;
            color: #fff;
            padding: 90px 0;
            background-image: radial-gradient(rgba(2, 132, 199, 0.15) 1px, transparent 0);
            background-size: 28px 28px;
        }
        .philosophy-sec .section-header h2 {
            color: #fff;
        }
        .philosophy-sec .section-header p {
            color: #94A3B8;
        }
        .philosophy-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .phil-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(8px);
        }
        .phil-card h3 {
            font-size: 20px;
            color: #38BDF8;
            margin-bottom: 12px;
        }
        .phil-card p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
        }

        /* 板块6：方法步骤流 */
        .step-flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-flow-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
        }
        .step-number {
            font-size: 32px;
            font-weight: 900;
            color: rgba(2, 132, 199, 0.2);
            position: absolute;
            top: 20px;
            right: 20px;
            line-height: 1;
        }
        .step-flow-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .step-flow-item p {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块7：用户故事/达人志 */
        .story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .story-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-sm);
        }
        .story-card img {
            width: 130px;
            height: 130px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        .story-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .story-body p {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        /* 板块8：关键运营数据条 */
        .metrics-banner {
            background: linear-gradient(135deg, #0284C7 0%, #0F172A 100%);
            padding: 60px 0;
            color: #fff;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .metric-item h3 {
            font-size: 38px;
            font-weight: 900;
            color: #38BDF8;
            margin-bottom: 6px;
        }
        .metric-item p {
            font-size: 14px;
            color: #E2E8F0;
        }

        /* 板块9：真实口碑评价 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .testi-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .testi-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .testi-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #E0F2FE;
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .testi-user h4 {
            font-size: 15px;
            font-weight: 700;
        }
        .testi-user span {
            font-size: 12px;
            color: var(--text-muted);
        }
        .testi-text {
            font-size: 14px;
            color: #475569;
            line-height: 1.65;
        }

        /* 板块10：圈层生态/适用人群 */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .audience-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .audience-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 12px 0 8px 0;
        }
        .audience-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块11：社区动态与资讯 */
        .news-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 32px;
        }
        .news-main-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }
        .news-main-card img {
            height: 240px;
            width: 100%;
            object-fit: cover;
        }
        .news-main-body {
            padding: 24px;
        }
        .news-main-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 10px 0;
        }
        .news-main-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-list-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            border: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        .news-list-item:hover {
            border-color: var(--primary);
            transform: translateX(4px);
        }
        .news-list-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }
        .news-list-item span {
            font-size: 12px;
            color: #94A3B8;
        }

        /* 板块12：版本更新与规划日志 */
        .changelog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .changelog-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
        }
        .changelog-tag {
            font-size: 11px;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 4px;
            text-transform: uppercase;
        }
        .changelog-tag.done { background: #DCFCE7; color: #166534; }
        .changelog-tag.doing { background: #FEF3C7; color: #92400E; }
        .changelog-tag.plan { background: #E0F2FE; color: #075985; }
        .changelog-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 12px 0 8px 0;
        }
        .changelog-card ul {
            list-style: disc inside;
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块13：行动号召收口 CTA */
        .cta-section {
            padding-bottom: 90px;
        }
        .cta-box {
            background: linear-gradient(135deg, #0F172A 0%, #0369A1 100%);
            border-radius: 24px;
            padding: 60px 40px;
            color: #fff;
            text-align: center;
            box-shadow: 0 25px 50px -12px rgba(2, 132, 199, 0.35);
        }
        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-box p {
            font-size: 16px;
            color: #CBD5E1;
            max-width: 680px;
            margin: 0 auto 32px auto;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            justify-content: center;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            padding: 14px 20px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 14px;
            outline: none;
        }
        .cta-form input::placeholder {
            color: #94A3B8;
        }
        .cta-form button {
            background: #fff;
            color: #0F172A;
            border: none;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
        }
        .cta-form button:hover {
            background: #F1F5F9;
            transform: scale(1.02);
        }

        /* 页脚规范 */
        .site-footer {
            background: #0B0F19;
            color: #64748B;
            padding: 70px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #38BDF8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        /* 移动端与自适应断点 */
        @media (max-width: 1024px) {
            .card-grid-3, .hot-zones-grid, .philosophy-grid, .testimonial-grid, .changelog-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-flow-grid, .audience-grid, .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-grid, .pain-solution-grid, .news-grid, .story-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .card-grid-3, .hot-zones-grid, .philosophy-grid, .testimonial-grid, .changelog-grid,
            .step-flow-grid, .audience-grid, .metrics-grid, .story-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-form {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }