/* roulang page: index */
:root {
            --primary-orange: #FF5500;
            --primary-orange-hover: #e04b00;
            --secondary-dark: #0F172A;
            --accent-green: #10B981;
            --accent-gold: #F59E0B;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-dark-pitch: #0B0F19;
            --text-heading: #0F172A;
            --text-body: #475569;
            --text-muted: #94A3B8;
            --card-radius: 16px;
            --btn-radius: 50px;
            --soft-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.07);
            --hover-shadow: 0 20px 35px -10px rgba(255, 85, 0, 0.16);
            --dark-card-bg: rgba(255, 255, 255, 0.04);
            --dark-card-border: rgba(255, 255, 255, 0.08);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-body);
            line-height: 1.75;
            overflow-x: hidden;
        }

        /* 顶部通栏 */
        .top-bar-strip {
            background-color: #060911;
            font-size: 0.85rem;
            color: #94A3B8;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* 导航 */
        .custom-navbar {
            background: rgba(15, 23, 42, 0.96);
            backdrop-filter: blur(12px);
            padding: 14px 0;
            transition: all 0.3s ease;
            border-bottom: 1px solid rgba(255, 85, 0, 0.2);
        }

        .navbar-brand-text {
            font-weight: 800;
            font-size: 1.5rem;
            color: #FFFFFF !important;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-badge {
            background: linear-gradient(135deg, var(--primary-orange), #FF8800);
            color: white;
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 6px;
            text-transform: uppercase;
            font-weight: 700;
        }

        .nav-link {
            color: #CBD5E1 !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px !important;
            transition: color 0.2s ease;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary-orange) !important;
        }

        .btn-cta-nav {
            background: var(--primary-orange);
            color: #FFFFFF !important;
            font-weight: 600;
            border-radius: var(--btn-radius);
            padding: 10px 24px;
            border: none;
            transition: all 0.25s ease;
            box-shadow: 0 4px 15px rgba(255, 85, 0, 0.35);
        }

        .btn-cta-nav:hover {
            background: var(--primary-orange-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 85, 0, 0.45);
        }

        /* 章节通用 */
        .section-padding {
            padding: 90px 0;
        }

        .section-header {
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary-orange);
            background: rgba(255, 85, 0, 0.1);
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            color: var(--text-heading);
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-body);
            max-width: 760px;
            margin: 0 auto;
        }

        /* 蓝图：黑金会员俱乐部感 Hero */
        .hero-vip-club {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 15, 25, 0.95) 0%, rgba(15, 23, 42, 0.92) 100%), url('/assets/images/81e173dd0661c2ee.png') center/cover no-repeat;
            color: #FFFFFF;
            padding: 100px 0 110px 0;
            border-bottom: 1px solid rgba(245, 158, 11, 0.25);
        }

        .hero-badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.4);
            color: #FCD34D;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-vip-title {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            color: #FFFFFF;
            margin-bottom: 24px;
        }

        .hero-vip-desc {
            font-size: 1.15rem;
            color: #94A3B8;
            max-width: 760px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .hero-action-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 45px;
        }

        .btn-gold-action {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            color: #0B0F19;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 14px 34px;
            border-radius: 50px;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 10px 25px rgba(245, 158, 11, 0.35);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-gold-action:hover {
            background: linear-gradient(135deg, #FBBF24, #F59E0B);
            transform: translateY(-2px);
            color: #0B0F19;
            box-shadow: 0 15px 30px rgba(245, 158, 11, 0.5);
        }

        .btn-outline-glow {
            background: rgba(255, 255, 255, 0.05);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 14px 30px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .btn-outline-glow:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.4);
        }

        .vip-tier-grid {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 24px;
        }

        .vip-tier-item {
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 20px;
        }

        .vip-tier-item:last-child {
            border-right: none;
        }

        .vip-tier-num {
            font-size: 1.7rem;
            font-weight: 800;
            color: #FCD34D;
            line-height: 1.2;
        }

        .vip-tier-label {
            font-size: 0.82rem;
            color: #94A3B8;
        }

        /* 倒计时条 (板块 2) */
        .countdown-strip {
            background: #0B0F19;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .timer-box {
            display: inline-flex;
            gap: 12px;
            align-items: center;
        }

        .timer-unit {
            background: #1E293B;
            color: #F8FAFC;
            font-weight: 800;
            font-size: 1.15rem;
            padding: 6px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 85, 0, 0.3);
        }

        /* 卡片基础与提升交互 */
        .custom-card {
            background: var(--bg-white);
            border-radius: var(--card-radius);
            box-shadow: var(--soft-shadow);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
            height: 100%;
        }

        .custom-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--hover-shadow);
            border-color: rgba(255, 85, 0, 0.25);
        }

        /* 痛点与解决方案对比 (板块 3) */
        .pain-solve-card {
            border-radius: 16px;
            padding: 32px 28px;
            height: 100%;
        }

        .pain-side {
            background: #FFF5F5;
            border: 1px solid #FED7D7;
        }

        .solve-side {
            background: #F0FDF4;
            border: 1px solid #BBF7D0;
        }

        .pain-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 16px;
            color: #4A5568;
            font-size: 0.96rem;
            list-style: none;
        }

        .pain-list li i {
            position: absolute;
            left: 0;
            top: 4px;
            color: #E53E3E;
        }

        .solve-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 16px;
            color: #2D3748;
            font-weight: 500;
            font-size: 0.96rem;
            list-style: none;
        }

        .solve-list li i {
            position: absolute;
            left: 0;
            top: 4px;
            color: #10B981;
        }

        /* 核心六大功能网格 (板块 4) */
        .feature-icon-box {
            width: 58px;
            height: 58px;
            border-radius: 14px;
            background: rgba(255, 85, 0, 0.08);
            color: var(--primary-orange);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }

        .custom-card:hover .feature-icon-box {
            background: var(--primary-orange);
            color: #FFFFFF;
            transform: scale(1.06);
        }

        /* 产品阶梯与版本对比 (板块 5) */
        .pricing-card {
            border-radius: 20px;
            padding: 36px 28px;
            position: relative;
            background: #FFFFFF;
            border: 2px solid #E2E8F0;
            transition: all 0.3s ease;
        }

        .pricing-card.featured {
            border-color: var(--primary-orange);
            box-shadow: 0 15px 40px -10px rgba(255, 85, 0, 0.22);
            transform: scale(1.03);
            background: #FFFFFF;
            z-index: 2;
        }

        .ribbon-featured {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary-orange), #FF8800);
            color: #FFFFFF;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 18px;
            border-radius: 50px;
            box-shadow: 0 4px 12px rgba(255, 85, 0, 0.3);
        }

        /* 深色理念架构 (板块 6) */
        .dark-tech-section {
            background: radial-gradient(circle at 80% 20%, rgba(255, 85, 0, 0.12) 0%, transparent 60%), #0B0F19;
            color: #F8FAFC;
        }

        .tech-pill-badge {
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid rgba(16, 185, 129, 0.3);
            color: #34D399;
            font-size: 0.85rem;
            padding: 4px 14px;
            border-radius: 50px;
        }

        .tech-card-glass {
            background: var(--dark-card-bg);
            border: 1px solid var(--dark-card-border);
            border-radius: 16px;
            padding: 28px;
            backdrop-filter: blur(8px);
        }

        /* 真实教练故事 (板块 7) */
        .coach-story-card {
            border-radius: 16px;
            overflow: hidden;
            background: #FFFFFF;
            border: 1px solid #E2E8F0;
        }

        .coach-avatar-cover {
            height: 240px;
            object-fit: cover;
            width: 100%;
        }

        /* 成果数据条 (板块 8) */
        .metrics-banner {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            color: white;
            border-radius: 20px;
            padding: 45px 30px;
        }

        .metric-val {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary-orange);
            line-height: 1.1;
        }

        /* 口碑评价 (板块 9) */
        .review-quote {
            font-style: italic;
            font-size: 0.98rem;
            color: #334155;
            position: relative;
            padding-left: 20px;
            border-left: 3px solid var(--primary-orange);
        }

        /* 行业资讯摘要 (板块 10) */
        .news-thumb {
            height: 190px;
            object-fit: cover;
            width: 100%;
            border-top-left-radius: var(--card-radius);
            border-top-right-radius: var(--card-radius);
        }

        /* 适用场景人群 (板块 11) */
        .scenario-item {
            border-radius: 14px;
            padding: 24px;
            background: #FFFFFF;
            border: 1px solid #E2E8F0;
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .scenario-icon {
            font-size: 2rem;
            color: var(--primary-orange);
            line-height: 1;
        }

        /* 落地收口表单 (板块 12) */
        .cta-box-gradient {
            background: linear-gradient(135deg, #0F172A 0%, #172554 100%);
            border-radius: 24px;
            padding: 55px 40px;
            color: white;
            border: 1px solid rgba(255, 85, 0, 0.3);
            box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
        }

        .form-control-custom {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #FFFFFF;
            padding: 12px 18px;
            border-radius: 10px;
        }

        .form-control-custom:focus {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--primary-orange);
            color: #FFFFFF;
            box-shadow: none;
        }

        .form-control-custom::placeholder {
            color: #94A3B8;
        }

        /* 页脚 */
        .footer-main {
            background: #060911;
            color: #94A3B8;
            padding: 70px 0 30px;
            font-size: 0.92rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-title {
            color: #F8FAFC;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 20px;
        }

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

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

        .footer-links a {
            color: #94A3B8;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            margin-top: 50px;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
        }

        @media (max-width: 991px) {
            .hero-vip-title {
                font-size: 2.3rem;
            }
            .pricing-card.featured {
                transform: scale(1);
                margin: 20px 0;
            }
            .vip-tier-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                margin-bottom: 12px;
                padding-bottom: 12px;
            }
        }