:root {
            --primary-color: #9c27b0;
            --secondary-color: #673ab7;
            --accent-color: #ff4081;
            --dark-color: #2c2c54;
            --light-color: #f8f9fa;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        .navbar {
            background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            padding: 1rem 0;
        }
        .navbar-brand {
            color: white !important;
            font-weight: 700;
            font-size: 1.8rem;
        }
        .nav-link {
            color: rgba(255,255,255,0.9) !important;
            font-weight: 500;
            margin: 0 8px;
            padding: 8px 16px !important;
            border-radius: 20px;
            transition: all 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            background-color: rgba(255,255,255,0.2);
            color: white !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(44, 44, 84, 0.8), rgba(103, 58, 183, 0.8)), url('https://images.unsplash.com/photo-1517841905240-472988babdf9?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            margin-bottom: 60px;
            position: relative;
        }
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .hero-subtitle {
            font-size: 1.5rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
        }
        .center-title:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            margin-bottom: 30px;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-img-top {
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .card-title {
            font-weight: 700;
            color: var(--dark-color);
            margin-bottom: 15px;
        }
        .badge-category {
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .btn-primary {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border: none;
            border-radius: 30px;
            padding: 10px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background: linear-gradient(to right, var(--secondary-color), var(--primary-color));
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .btn-play {
            background: linear-gradient(to right, #ff4081, #ff6b9d);
            color: white;
            border-radius: 50%;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: all 0.3s ease;
        }
        .btn-play:hover {
            transform: scale(1.1);
            box-shadow: 0 10px 20px rgba(255, 64, 129, 0.3);
        }
        .featured-section {
            background-color: white;
            padding: 80px 0;
            border-radius: 20px;
            margin: 60px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        .flink {
            display: inline-block;
            background-color: white;
            padding: 12px 25px;
            border-radius: 10px;
            margin: 10px;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            border: 1px solid #eee;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            text-decoration: none;
        }
        .friendlink {
            background-color: #f9f9ff;
            padding: 60px 0;
            border-top: 1px solid #eee;
            border-bottom: 1px solid #eee;
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: color 0.3s ease;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 40px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        .video-thumbnail {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .video-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .video-thumbnail:hover .video-overlay {
            opacity: 1;
        }
        .stats-item {
            text-align: center;
            padding: 30px 20px;
            background-color: white;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 30px;
            transition: all 0.3s ease;
        }
        .stats-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .stats-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .stats-label {
            font-size: 1rem;
            color: #666;
            font-weight: 500;
        }
        .pagination-custom .page-link {
            color: var(--primary-color);
            border: 1px solid #dee2e6;
            margin: 0 5px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .pagination-custom .page-link:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        .pagination-custom .page-item.active .page-link {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .navbar-nav {
                background-color: rgba(44, 44, 84, 0.95);
                padding: 20px;
                border-radius: 10px;
                margin-top: 10px;
            }
        }
        .keyword-tag {
            display: inline-block;
            background-color: #f0f0f0;
            color: #666;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            margin: 5px;
            transition: all 0.3s ease;
        }
        .keyword-tag:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        .about-content {
            background-color: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }