:root {
            --primary-color: #8a2be2;
            --secondary-color: #ff6b9d;
            --dark-color: #1a1a2e;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 26, 46, 0.85), rgba(26, 26, 46, 0.9)), 
                        url('https://images.unsplash.com/photo-1511379938547-c1f69419868d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
            color: white;
            padding: 8rem 0 6rem;
            margin-top: 76px;
            border-bottom-left-radius: 50% 20%;
            border-bottom-right-radius: 50% 20%;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        .section-title.text-center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(138, 43, 226, 0.15);
        }
        .card-img-top {
            height: 280px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .card-body {
            padding: 1.8rem;
        }
        .badge-custom {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        .btn-primary-custom {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            border: none;
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(138, 43, 226, 0.3);
            color: white;
        }
        .friendlink .flink {
            display: inline-block;
            background: white;
            padding: 10px 25px;
            margin: 8px;
            border-radius: 50px;
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 500;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }
        .friendlink .flink:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            transform: translateY(-3px);
        }
        .footer {
            background: var(--dark-color);
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: var(--secondary-color);
        }
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            margin-right: 10px;
            transition: all 0.3s;
        }
        .social-icons a:hover {
            background: var(--primary-color);
            transform: translateY(-5px);
        }
        .stats-box {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
            transition: transform 0.3s;
        }
        .stats-box:hover {
            transform: translateY(-5px);
        }
        .stats-box i {
            font-size: 2.5rem;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 1rem;
        }
        .stats-box h3 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--dark-color);
            margin-bottom: 0.5rem;
        }
        .video-thumbnail {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 1.5rem;
        }
        .video-thumbnail img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .video-thumbnail .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background: rgba(138, 43, 226, 0.85);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            transition: all 0.3s;
        }
        .video-thumbnail:hover .play-btn {
            background: rgba(255, 107, 157, 0.9);
            transform: translate(-50%, -50%) scale(1.1);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 6rem 0 4rem;
                border-bottom-left-radius: 30% 10%;
                border-bottom-right-radius: 30% 10%;
            }
            .stats-box {
                margin-bottom: 1.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        .pagination-custom .page-link {
            color: var(--primary-color);
            border: 1px solid #dee2e6;
        }
        .pagination-custom .page-item.active .page-link {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            border-color: var(--primary-color);
        }
        .nav-pills-custom .nav-link {
            color: var(--dark-color);
            border-radius: 50px;
            padding: 10px 25px;
            margin: 0 5px 10px;
            border: 2px solid transparent;
        }
        .nav-pills-custom .nav-link.active {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
            border-color: transparent;
        }