/* 通用重置 - 解决浏览器默认样式差异 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* 基础组件 - 确保所有页面样式统一 */
/* 卡片：用于表单、表格容器 */
.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

/* 按钮：统一样式和交互 */
.btn {
    display: inline-block;
    width: 100%;
    padding: 12px 0;
    background-color: #409EFF;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s ease;
    text-align: center;
    text-decoration: none;
}

.btn:hover {
    background-color: #3889e8;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
    width: auto;
}

.btn-danger {
    background-color: #f5222d;
}

.btn-danger:hover {
    background-color: #e02020;
}

.btn-pass {
    background-color: #52c41a;
}

.btn-pass:hover {
    background-color: #47b881;
}

/* 表单：统一输入框样式 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #666;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: #409EFF;
    box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.2);
}

/* 表格：统一表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e5e6eb;
}

.table th {
    background-color: #f5f7fa;
    font-weight: 500;
    color: #666;
}

.table tr:hover {
    background-color: #f9fafb;
}

/* 提示框：统一提示样式 */
.alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background-color: #f6ffed;
    color: #52c41a;
    border: 1px solid #b7eb8f;
}

.alert-danger {
    background-color: #fff1f0;
    color: #f5222d;
    border: 1px solid #ffccc7;
}

/* 加载动画：统一加载样式 */
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(64, 158, 255, 0.2);
    border-radius: 50%;
    border-top-color: #409EFF;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 响应式：确保移动端适配 */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-container {
        flex-direction: column;
    }
    
    .stat-card {
        min-width: 100%;
    }
}