/* roulang page: index */
:root {
            --primary-deep-green: #0E7A3B;
            --accent-warm-yellow: #F5A623;
            --emphasis-bright-orange: #FF6B35;
            --bg-warm-gray: #F7F5F2;
            --card-bg: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-muted: #555555;
            --border-light: rgba(14, 122, 59, 0.08);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 32px rgba(14, 122, 59, 0.12);
            --deep-green-gradient: linear-gradient(135deg, #0A5C2D 0%, #063D1E 100%);
            --font-titles: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-data: 'DIN Alternate', 'Roboto Mono', monospace;
            --border-radius-lg: 20px;
            --border-radius-md: 16px;
            --border-radius-sm: 12px;
            --section-gap-desktop: 120px;
            --section-gap-tablet: 80px;
            --section-gap-mobile: 60px;
            --container-max: 1200px;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-warm-gray);
            color: var(--text-dark);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-titles);
            font-weight: 700;
            color: var(--text-dark);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 导航系统 */
        .navbar-brand-custom {
            font-family: var(--font-titles);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-deep-green);
            letter-spacing: 0.5px;
        }

        .navbar-brand-custom span {
            color: var(--accent-warm-yellow);
        }

        .brand-row {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(14, 122, 59, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0 20px;
        }

        .channel-row {
            background-color: #FAF9F7;
            height: 48px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(14, 122, 59, 0.05);
            padding: 0 20px;
            overflow-x: auto;
            white-space: nowrap;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .channel-row::-webkit-scrollbar {
            display: none;
        }

        .channel-link {
            display: inline-block;
            padding: 8px 16px;
            margin-right: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #555;
            border-radius: 20px;
            transition: all 0.2s ease;
            background: transparent;
        }

        .channel-link:hover,
        .channel-link.active {
            color: var(--primary-deep-green);
            background-color: rgba(14, 122, 59, 0.05);
            font-weight: 600;
            box-shadow: inset 0 -2px 0 var(--primary-deep-green);
        }

        .btn-primary-custom {
            background-color: var(--emphasis-bright-orange);
            border: none;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 10px 24px;
            border-radius: var(--border-radius-sm);
            transition: all 0.25s ease;
            box-shadow: 0 4px 10px rgba(255, 107, 53, 0.25);
            letter-spacing: 0.3px;
        }

        .btn-primary-custom:hover {
            background-color: #E55A2B;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.35);
            color: #FFFFFF;
        }

        .btn-outline-green {
            background: transparent;
            border: 2px solid var(--primary-deep-green);
            color: var(--primary-deep-green);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 10px 24px;
            border-radius: var(--border-radius-sm);
            transition: all 0.25s ease;
        }

        .btn-outline-green:hover {
            background-color: rgba(14, 122, 59, 0.08);
            border-color: var(--primary-deep-green);
            color: var(--primary-deep-green);
            transform: translateY(-2px);
        }

        .btn-light-outline {
            background: transparent;
            border: 2px solid #FFFFFF;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--border-radius-sm);
            transition: all 0.25s ease;
        }

        .btn-light-outline:hover {
            background-color: rgba(255, 255, 255, 0.15);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--primary-deep-green);
            font-size: 1.8rem;
        }

        .mobile-menu {
            position: fixed;
            top: 64px;
            left: 0;
            width: 100%;
            background: #FFFFFF;
            box-shadow: 0 12px 24px rgba(0,0,0,0.08);
            padding: 20px;
            z-index: 999;
            display: none;
            flex-direction: column;
            gap: 10px;
        }

        .mobile-menu.show {
            display: flex;
        }

        .mobile-menu .channel-link {
            display: block;
            padding: 12px 20px;
            font-size: 1.1rem;
            border-radius: 12px;
        }

        /* Hero */
        .hero-section {
            background-color: var(--bg-warm-gray);
            background-image: radial-gradient(circle at 85% 20%, rgba(14,122,59,0.03) 0%, transparent 45%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 40px 0;
            position: relative;
            overflow: hidden;
        }

        .hero-bg-pattern {
            position: absolute;
            right: 0;
            top: 0;
            width: 45%;
            height: 100%;
            background: repeating-linear-gradient(45deg, rgba(14,122,59,0.02) 0px, rgba(14,122,59,0.02) 2px, transparent 2px, transparent 8px);
            pointer-events: none;
        }

        .live-badge {
            background-color: var(--accent-warm-yellow);
            color: #1A1A1A;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            animation: pulse-live 1.8s infinite;
            display: inline-block;
        }

        @keyframes pulse-live {
            0% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.8; transform: scale(1.05); }
            100% { opacity: 1; transform: scale(1); }
        }

        .score-card-dark {
            background: var(--deep-green-gradient);
            border-radius: 24px;
            padding: 30px 25px;
            color: white;
            text-align: center;
            box-shadow: 0 20px 40px rgba(0,0,0,0.2);
        }

        .score-number {
            font-family: var(--font-data);
            font-size: 5rem;
            font-weight: 700;
            color: var(--accent-warm-yellow);
            line-height: 1;
            letter-spacing: 4px;
        }

        .team-name {
            font-weight: 600;
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
        }

        .data-badge {
            background-color: #E8F5E9;
            color: var(--primary-deep-green);
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-family: var(--font-data);
        }

        /* 通用区块 */
        .section-padding {
            padding: var(--section-gap-desktop) 0;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: #1A1A1A;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: #555;
            max-width: 650px;
            margin: 0 auto 3rem auto;
        }

        .card-custom {
            background: var(--card-bg);
            border-radius: var(--border-radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-custom:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-card-hover);
        }

        .icon-placeholder {
            width: 64px;
            height: 64px;
            background-color: #E8F5E9;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-deep-green);
            font-size: 1.8rem;
        }

        .testimonial-card {
            background: #F0F7F1;
            border-radius: var(--border-radius-md);
            padding: 28px;
            transition: background 0.2s;
        }

        .testimonial-card:hover {
            background: #E8F5E9;
        }

        .avatar-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: #C8E6C9;
            background-size: cover;
        }

        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 1.1rem;
            color: var(--primary-deep-green);
            background-color: #FFFFFF;
            border: 1px solid #E0E0E0;
            border-radius: var(--border-radius-sm) !important;
            padding: 16px 20px;
            box-shadow: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background-color: #F1F8F2;
            color: var(--primary-deep-green);
            box-shadow: none;
        }

        .footer-link {
            color: #555;
            font-size: 0.95rem;
            transition: color 0.2s;
            display: block;
            margin-bottom: 4px;
        }

        .footer-link:hover {
            color: var(--accent-warm-yellow);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        @media (max-width: 1024px) {
            .section-padding {
                padding: var(--section-gap-tablet) 0;
            }
            .score-number {
                font-size: 4rem;
            }
        }

        @media (max-width: 768px) {
            .channel-row {
                display: none;
            }
            .hero-section {
                min-height: auto;
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .score-number {
                font-size: 3.2rem;
            }
            .navbar-brand-custom {
                font-size: 1.2rem;
            }
            .data-badge-row {
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 8px;
            }
        }

        @media (max-width: 576px) {
            .btn-primary-custom, .btn-outline-green {
                width: 100%;
                text-align: center;
            }
        }