:root {
            --primary-color: #4361ee;
            --secondary-color: #3a0ca3;
            --accent-color: #f72585;
            --text-color: #2b2d42;
            --light-bg: #f8f9fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            padding: 0;
            background: url('photos/frieren_4k.jpg') no-repeat center center fixed;
            background-size: cover;
            min-height: 100vh;
            color: var(--text-color);
        }
        #all {
            max-width: 1200px;
            margin: 40px auto;
            padding: 30px;
            background-color: rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        #welcome, #contact {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        #welcome:hover, #contact:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        h2 {
            color: #2c3e50;
            margin-bottom: 20px;
            font-size: 2.2em;
        }
        h3 {
            color: #7f8c8d;
            font-weight: normal;
        }
        ul {
            list-style: none;
            padding: 0;
        }
        li {
            margin: 15px 0;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            padding: 10px 20px;
            border-radius: 8px;
            background-color: rgba(67, 97, 238, 0.1);
            display: inline-block;
            border: 2px solid transparent;
        }
        a:hover {
            color: white;
            background-color: var(--primary-color);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
        }
        
        /* 新增动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        #welcome, #contact, #about-us, #blog, #code {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeIn 0.6s ease-out forwards;
}

#about-us:hover, #blog:hover, #code:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}
        
        #contact {
            animation-delay: 0.2s;
        }
        
        #about-us {
            animation-delay: 0.4s;
        }

        #Information {
            text-align: center;
            margin: 20px auto;
            color: white;
            font-size: 14px;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
        }