:root {
            --primary-color: #a855f7;
            --secondary-color: #ec4899;
            --dark-color: #1f2937;
            --light-color: #f8f9fa;
            --gray-color: #6b7280;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            background-color: #fefefe;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(168,85,247,0.1) 0%, rgba(236,72,153,0.05) 100%);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 20px;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            text-align: center;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(168,85,247,0.15);
        }
        .img-fluid {
            border-radius: 8px;
        }
        .badge-custom {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
        }
        .btn-custom {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-custom:hover {
            color: white;
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(168,85,247,0.4);
        }
        .footer {
            background-color: var(--dark-color);
            color: var(--light-color);
            padding: 60px 0 20px;
        }
        .friendlink a.flink {
            color: #d1d5db;
            text-decoration: none;
            padding: 8px 15px;
            border-radius: 5px;
            transition: all 0.3s;
            display: inline-block;
            margin: 5px;
            background-color: rgba(255,255,255,0.05);
        }
        .friendlink a.flink:hover {
            background-color: rgba(255,255,255,0.1);
            color: white;
            transform: translateY(-2px);
        }
        .pagination-custom .page-link {
            color: var(--primary-color);
            border: 1px solid #dee2e6;
        }
        .pagination-custom .page-item.active .page-link {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
        }
        .nav-pills-custom .nav-link {
            color: var(--gray-color);
            border-radius: 30px;
            padding: 8px 20px;
            margin: 0 5px;
            font-weight: 500;
            transition: all 0.3s;
        }
        .nav-pills-custom .nav-link.active {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
        }
        .video-play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 70px;
            height: 70px;
            background-color: rgba(236,72,153,0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 28px;
            text-decoration: none;
            transition: all 0.3s;
            z-index: 2;
        }
        .video-play-btn:hover {
            background-color: rgba(168,85,247,0.9);
            color: white;
            transform: translate(-50%, -50%) scale(1.1);
        }
        .video-thumbnail {
            position: relative;
            overflow: hidden;
            border-radius: 12px;
        }
        .video-thumbnail::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.7) 100%);
            border-radius: 12px;
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            backdrop-filter: blur(10px);
            background-color: rgba(255,255,255,0.95);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .stats-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }
        .stats-label {
            color: var(--gray-color);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }