:root {
            --primary-color: #a855f7;
            --secondary-color: #f472b6;
            --dark-color: #1f2937;
            --light-color: #f9fafb;
        }
        body {
            font-family: "Microsoft YaHei", sans-serif;
            color: var(--dark-color);
            background-color: var(--light-color);
        }
        .navbar-brand {
            font-weight: bold;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 6rem 0;
        }
        .section-title {
            border-left: 5px solid var(--primary-color);
            padding-left: 1rem;
            margin-bottom: 2rem;
        }
        .card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-primary:hover {
            background-color: #9333ea;
            border-color: #9333ea;
        }
        .friendlink .flink {
            display: inline-block;
            padding: 0.5rem 1rem;
            margin: 0.5rem;
            background-color: #e5e7eb;
            border-radius: 0.375rem;
            text-decoration: none;
            color: var(--dark-color);
            transition: background-color 0.3s ease;
        }
        .friendlink .flink:hover {
            background-color: var(--primary-color);
            color: white;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
        }
        .img-hover-zoom {
            overflow: hidden;
            border-radius: 0.5rem;
        }
        .img-hover-zoom img {
            transition: transform 0.5s ease;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.05);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0;
            }
            .display-4 {
                font-size: 2.5rem;
            }
        }