/* roulang page: index */
:root {
            --primary: #00A86B;
            --primary-hover: #008f5a;
            --primary-light: #e6f6f0;
            --accent: #FF6B35;
            --accent-hover: #e85924;
            --bg-base: #F8FAFC;
            --bg-surface: #FFFFFF;
            --bg-dark: #0F172A;
            --bg-dark-card: rgba(30, 41, 59, 0.7);
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.1);
            --sidebar-width: 260px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.7;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        /* 侧边导航栏 (Desktop) */
        .site-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 28px 20px;
            z-index: 1040;
            overflow-y: auto;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .brand-logo .logo-icon {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            box-shadow: 0 4px 12px rgba(0, 168, 107, 0.3);
        }

        .brand-logo .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            line-height: 1.25;
        }

        .sidebar-menu {
            list-style: none;
            margin-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 14px;
            border-radius: 8px;
        }

        .sidebar-menu a:hover,
        .sidebar-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .sidebar-footer {
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }

        .sidebar-footer .hotline {
            font-weight: 700;
            color: var(--text-main);
            font-size: 15px;
            display: block;
            margin-top: 4px;
        }

        /* 移动端顶部固定导航 */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            z-index: 1050;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-menu-btn {
            background: none;
            border: none;
            font-size: 26px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            padding: 8px;
        }

        /* 主内容容器 */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* 通用板块与排版样式 */
        .content-section {
            padding: 80px 0;
            position: relative;
        }

        .section-alt {
            background-color: #ffffff;
        }

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

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        /* 统一卡片 */
        .feature-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 168, 107, 0.3);
        }

        /* 按钮与交互系统 */
        .btn-brand-primary {
            background-color: var(--primary);
            border: 1px solid var(--primary);
            color: #ffffff;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.25s ease;
        }

        .btn-brand-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(0, 168, 107, 0.35);
        }

        .btn-brand-accent {
            background-color: var(--accent);
            border: 1px solid var(--accent);
            color: #ffffff;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.25s ease;
        }

        .btn-brand-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }

        .btn-brand-outline {
            background-color: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.25s ease;
        }

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

        /* Hero 样式：融入直播预告与倒计时 */
        .hero-banner-container {
            position: relative;
            background: linear-gradient(135deg, #0d2e24 0%, #0F172A 100%), url('/assets/images/2a3708fb56a73c10.png') center/cover no-repeat;
            background-blend-mode: overlay;
            color: #ffffff;
            padding: 90px 0 80px;
        }

        .live-badge-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 107, 53, 0.2);
            border: 1px solid rgba(255, 107, 53, 0.5);
            color: #FFB088;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .live-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0% { transform: scale(0.95); opacity: 0.8; }
            50% { transform: scale(1.4); opacity: 1; }
            100% { transform: scale(0.95); opacity: 0.8; }
        }

        .hero-h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-lead {
            font-size: 16px;
            line-height: 1.8;
            color: #CBD5E1;
            margin-bottom: 32px;
            max-width: 620px;
        }

        .countdown-board {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 24px;
            max-width: 440px;
        }

        .countdown-digits {
            display: flex;
            gap: 12px;
            margin: 16px 0;
        }

        .countdown-box {
            flex: 1;
            background: rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 10px 4px;
            text-align: center;
        }

        .countdown-box .num {
            font-size: 24px;
            font-weight: 700;
            color: #ffffff;
            font-family: monospace;
            display: block;
        }

        .countdown-box .label {
            font-size: 11px;
            color: #94A3B8;
        }

        /* 痛点卡片 */
        .pain-icon-wrapper {
            width: 52px;
            height: 52px;
            background: #FFF1F0;
            color: #E11D48;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        /* 时间轴步骤 */
        .step-timeline-item {
            position: relative;
            padding: 24px 20px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-subtle);
        }

        .step-num-badge {
            font-size: 12px;
            font-weight: 800;
            color: var(--primary);
            background: var(--primary-light);
            display: inline-block;
            padding: 2px 10px;
            border-radius: 6px;
            margin-bottom: 12px;
        }

        /* 深度理念区（深色大通栏） */
        .vision-dark-section {
            background-color: var(--bg-dark);
            color: #ffffff;
            padding: 90px 0;
        }

        .glass-terminal-card {
            background: var(--bg-dark-card);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .tech-pill {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-family: monospace;
            background: rgba(0, 168, 107, 0.15);
            color: #34D399;
            border: 1px solid rgba(0, 168, 107, 0.3);
            margin-right: 6px;
            margin-bottom: 8px;
        }

        /* 数据看板 */
        .stat-huge-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
            font-weight: 500;
        }

        /* FAQ 手风琴美化 */
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background-color: var(--primary-light);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(0, 168, 107, 0.3);
        }

        .accordion-item {
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            border-radius: 8px !important;
            overflow: hidden;
        }

        /* 表单样式 */
        .form-control, .form-select {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 14px;
        }

        .form-control:focus, .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.15);
        }

        /* 统一页脚 */
        .site-footer {
            background-color: #0b1120;
            color: #94A3B8;
            padding: 60px 0 30px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }

        .site-footer h6 {
            color: #ffffff;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

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

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

        .footer-copyright-row {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #1E293B;
            font-size: 13px;
        }

        /* 响应式断点控制 */
        @media (max-width: 991.98px) {
            .site-sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }
            .site-sidebar.show {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 64px;
            }
            .hero-h1 {
                font-size: 30px;
            }
            .content-section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 26px;
            }
        }