:root {
            --primary-color: #9c27b0;
            --secondary-color: #673ab7;
            --accent-color: #ff4081;
            --dark-color: #333;
            --light-color: #f8f9fa;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: #fff;
            color: var(--dark-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
        }
        .navbar-nav .nav-link {
            color: rgba(255,255,255,0.9) !important;
            font-weight: 500;
            padding: 0.5rem 1rem;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--accent-color) !important;
            transform: translateY(-2px);
        }
        .hero {
            background: url('https://images.unsplash.com/photo-1519681393784-d120267933ba?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            min-height: 80vh;
            display: flex;
            align-items: center;
            position: relative;
            color: white;
            text-shadow: 0 2px 10px rgba(0,0,0,0.7);
        }
        .hero-overlay {
            background: rgba(0,0,0,0.6);
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .section-title {
            color: var(--primary-color);
            border-left: 5px solid var(--accent-color);
            padding-left: 15px;
            margin-bottom: 2rem;
            font-weight: 700;
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: var(--transition);
            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: var(--transition);
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .card-title {
            color: var(--secondary-color);
            font-weight: 600;
        }
        .badge-custom {
            background-color: var(--accent-color);
            color: white;
            font-size: 0.8rem;
            padding: 0.3rem 0.8rem;
        }
        .video-container {
            position: relative;
            padding-bottom: 56.25%; 
            height: 0;
            overflow: hidden;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        .friendlink {
            background-color: var(--light-color);
            padding: 3rem 0;
            border-top: 1px solid #dee2e6;
            border-bottom: 1px solid #dee2e6;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 50px;
            color: var(--dark-color);
            text-decoration: none;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: var(--transition);
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        footer a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: var(--accent-color);
        }
        .social-icons a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
        }
        .social-icons a:hover {
            background: var(--accent-color);
            transform: rotate(15deg);
        }
        .btn-custom {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-custom:hover {
            background: linear-gradient(to right, var(--secondary-color), var(--primary-color));
            color: white;
            transform: scale(1.05);
        }
        .responsive-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
        }
        .sticky-top {
            top: 20px;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 60vh;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .card-img-top {
                height: 200px;
            }
        }