/* 页面通用样式 */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 页面容器 */
.page-container {
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 页面头部 */
.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-title i {
    color: #1890ff;
}

.page-description {
    color: #666;
    font-size: 14px;
}

/* 卡片样式 */
.card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 16px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid #f0f0f0;
    background: #fafafa;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.card-content {
    padding: 20px;
}

/* 仪表板网格 */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

/* 快捷操作 */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    border: 1px solid #e8e8e8;
    border-radius: 6px;
    text-decoration: none;
    color: #666;
    transition: all 0.3s;
    background: #fff;
}

.action-btn:hover {
    border-color: #1890ff;
    color: #1890ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24,144,255,0.15);
}

.action-btn i {
    font-size: 24px;
}

.action-btn span {
    font-size: 14px;
    font-weight: 500;
}

/* 统计数据 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 16px;
    border-radius: 6px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    opacity: 0.9;
}

/* 活动列表 */
.activity-list {
    space-y: 12px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #1890ff;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: 14px;
    color: #333;
    margin-bottom: 2px;
}

.activity-time {
    font-size: 12px;
    color: #999;
}

/* 系统状态 */
.system-status {
    space-y: 12px;
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.status-item:last-child {
    border-bottom: none;
}

.status-label {
    font-size: 14px;
    color: #333;
}

.status-indicator {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

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

.status-warning {
    background: #fffbe6;
    color: #faad14;
    border: 1px solid #ffe58f;
}

.status-error {
    background: #fff2f0;
    color: #ff4d4f;
    border: 1px solid #ffccc7;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    background: #fff;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover {
    border-color: #1890ff;
    color: #1890ff;
}

.btn-primary {
    background: #1890ff;
    border-color: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background: #40a9ff;
    border-color: #40a9ff;
    color: #fff;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.table th {
    background: #fafafa;
    font-weight: 600;
    color: #333;
}

.table tbody tr:hover {
    background: #f5f5f5;
}

/* 表单样式 */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #1890ff;
    box-shadow: 0 0 0 2px rgba(24,144,255,0.2);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-container {
        padding: 16px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}