/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 登录页面样式 */
.login-box {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    margin: 100px auto;
    text-align: center;
}

.login-box h1 {
    color: #333;
    margin-bottom: 10px;
}

.login-box h2 {
    color: #666;
    margin-bottom: 30px;
    font-size: 1.2em;
}

.error {
    color: #dc3545;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="file"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.form-group input[type="file"] {
    padding: 5px;
    background-color: #f9f9f9;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #007bff;
    color: #fff;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-success {
    background-color: #28a745;
    color: #fff;
}

.btn-success:hover {
    background-color: #1e7e34;
}

.btn-danger {
    background-color: #dc3545;
    color: #fff;
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-copy {
    background-color: #6c757d;
    color: #fff;
    padding: 8px 15px;
    font-size: 14px;
}

.btn-copy:hover {
    background-color: #5a6268;
}

/* 头部样式 */
.header {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #333;
    font-size: 1.5em;
}

.header-right {
    display: flex;
    gap: 10px;
}

/* 上传区域样式 */
.upload-section {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.upload-section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.2em;
}

/* 文件列表区域样式 */
.file-list-section {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.file-list-section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.2em;
}

.empty-message {
    text-align: center;
    color: #666;
    padding: 40px 0;
    background-color: #f9f9f9;
    border-radius: 4px;
}

/* 表格样式 */
.file-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.file-table th,
.file-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.file-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    color: #555;
    text-transform: uppercase;
    font-size: 14px;
}

.file-table tr:hover {
    background-color: #f5f5f5;
}

/* 下载链接样式 */
.download-link {
    display: flex;
    gap: 10px;
    align-items: center;
}

.download-link input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    background-color: #f9f9f9;
}

/* 操作按钮样式 */
.action-buttons {
    display: flex;
    gap: 10px;
}

.action-buttons .btn {
    padding: 8px 15px;
    font-size: 14px;
}

/* 文件ID样式 */
.file-id {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.edit-id-form {
    margin-top: 10px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.btn-small {
    padding: 5px 10px;
    font-size: 12px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .login-box {
        padding: 20px;
        margin: 50px auto;
    }
    
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .file-table {
        font-size: 14px;
    }
    
    .file-table th,
    .file-table td {
        padding: 8px;
    }
    
    .download-link {
        flex-direction: column;
        gap: 5px;
    }
    
    .download-link input {
        width: 100%;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 5px;
    }
    
    .action-buttons .btn {
        width: 100%;
        text-align: center;
    }
    
    .edit-id-form form {
        flex-direction: column;
    }
}