body {
    font-family: 'Microsoft YaHei', sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    color: #333;
    text-align: center;
}

.file-list {
    margin-top: 20px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.2s;
}

.file-item:hover {
    background-color: #f9f9f9;
}

.file-info {
    flex-grow: 1;
}

.file-name {
    font-weight: bold;
    color: #2c3e50;
}

.file-size {
    font-size: 0.8em;
    color: #7f8c8d;
    margin-left: 10px;
}

.download-btn {
    padding: 6px 12px;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9em;
}

.download-btn:hover {
    background-color: #2980b9;
}