:root {
            --primary-color: #9c27b0;
            --secondary-color: #673ab7;
            --accent-color: #e91e63;
            --dark-color: #1a1a2e;
            --light-color: #f8f9fa;
            --text-color: #333;
            --text-light: #666;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            background-color: #f5f5f5;
            line-height: 1.6;
        }
        .container-fluid {
            max-width: 1400px;
        }
        .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: 15px 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            color: white;
            font-weight: 700;
            font-size: 1.8rem;
            display: flex;
            align-items: center;
        }
        .navbar-brand i {
            color: var(--accent-color);
            margin-right: 10px;
        }
        .navbar-nav .nav-link {
            color: rgba(255,255,255,0.85);
            font-weight: 500;
            padding: 8px 20px;
            margin: 0 5px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: white;
            background-color: rgba(255,255,255,0.1);
        }
        .navbar-toggler {
            border-color: rgba(255,255,255,0.2);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .hero-section {
            background: linear-gradient(rgba(26, 26, 46, 0.85), rgba(103, 58, 183, 0.8)), url('https://images.unsplash.com/photo-1511379938547-c1f69419868d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1470&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            margin-bottom: 60px;
            border-radius: 0 0 20px 20px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            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;
        }
        .hero-btn {
            background-color: var(--accent-color);
            border: none;
            padding: 12px 30px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        .hero-btn:hover {
            background-color: #d81b60;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .card-title {
            color: var(--secondary-color);
            font-weight: 700;
            margin-bottom: 15px;
        }
        .card-text {
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .badge {
            padding: 6px 12px;
            font-weight: 500;
            margin-right: 8px;
            margin-bottom: 8px;
        }
        .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(--accent-color));
            border-radius: 2px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 50px;
            font-size: 1.1rem;
        }
        .video-player {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            margin-bottom: 40px;
        }
        .video-placeholder {
            height: 400px;
            background: linear-gradient(45deg, var(--dark-color), var(--secondary-color));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
        }
        .about-section {
            background-color: white;
            padding: 80px 0;
            border-radius: 20px;
            margin-bottom: 60px;
        }
        .about-img {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 20px;
            margin-top: 80px;
        }
        .footer h5 {
            color: white;
            margin-bottom: 25px;
            font-weight: 600;
            position: relative;
            padding-bottom: 10px;
        }
        .footer h5:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--accent-color);
        }
        .footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            display: block;
            margin-bottom: 12px;
            transition: all 0.3s ease;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .social-links a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
            color: white;
            transition: all 0.3s ease;
        }
        .social-links a:hover {
            background-color: var(--accent-color);
            transform: translateY(-5px);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
        }
        .friendlink {
            padding: 60px 0;
            background-color: white;
            border-radius: 20px;
            margin-bottom: 60px;
        }
        .flink {
            display: inline-block;
            background-color: #f8f9fa;
            padding: 12px 25px;
            margin: 10px;
            border-radius: 8px;
            color: var(--secondary-color);
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #eaeaea;
        }
        .flink:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(103, 58, 183, 0.2);
        }
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.8rem;
            }
            .hero-subtitle {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.3rem;
            }
            .hero-subtitle {
                font-size: 1.1rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 576px) {
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-section {
                padding: 70px 0;
            }
            .card-img-top {
                height: 180px;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fadeInUp {
            animation: fadeInUp 0.6s ease forwards;
        }
        .keyword-tag {
            display: inline-block;
            background-color: #f0f0f0;
            color: var(--text-light);
            padding: 5px 12px;
            margin: 5px;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: all 0.3s ease;
        }
        .keyword-tag:hover {
            background-color: var(--primary-color);
            color: white;
            cursor: pointer;
        }
        .work-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }