:root {
            --primary-color: #8a2be2;
            --secondary-color: #ff6b6b;
            --dark-color: #1a1a2e;
            --light-color: #f8f9fa;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: #f5f5f7;
            color: #333;
            line-height: 1.8;
        }
        .navbar {
            background: linear-gradient(135deg, var(--dark-color), #16213e);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
        }
        .nav-link {
            color: rgba(255,255,255,0.85) !important;
            font-weight: 500;
            transition: all 0.3s;
            margin: 0 8px;
        }
        .nav-link:hover {
            color: var(--secondary-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(26,26,46,0.85), rgba(26,26,46,0.9)), url('https://images.unsplash.com/photo-1544005313-94ddf0286df2?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
            border-radius: 0 0 30px 30px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .hero-subtitle {
            font-size: 1.4rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        .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: var(--primary-color);
            border-radius: 2px;
        }
        .card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: transform 0.4s, box-shadow 0.4s;
            background: white;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(138, 43, 226, 0.15);
        }
        .card-img-top {
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .btn-primary {
            background: linear-gradient(to right, var(--primary-color), #9b59b6);
            border: none;
            padding: 10px 25px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background: linear-gradient(to right, #7a1dc2, #8e44ad);
            transform: scale(1.05);
        }
        .btn-outline-light {
            border-radius: 50px;
            padding: 10px 25px;
            font-weight: 600;
        }
        .video-container {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            border-radius: 15px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        .friendlink {
            background-color: #eef2f7;
            padding: 60px 0;
            border-radius: 20px;
        }
        .flink {
            display: inline-block;
            margin: 10px 20px;
            padding: 12px 25px;
            background: white;
            border-radius: 50px;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 600;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-5px);
        }
        footer {
            background: var(--dark-color);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 20px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: color 0.3s;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        .badge-keyword {
            background: linear-gradient(135deg, #ff9a9e, #fad0c4);
            color: #333;
            font-weight: 600;
            margin: 0 5px 5px 0;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            display: inline-block;
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
            .hero-subtitle { font-size: 1.1rem; }
            .section-title { font-size: 1.8rem; }
        }