/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 登录容器 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-form {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo i {
    font-size: 48px;
    color: #667eea;
    margin-bottom: 10px;
}

.logo h1 {
    color: #333;
    font-size: 24px;
    margin: 0;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group input {
    width: 100%;
    padding: 12px 40px 12px 15px;
    border: 2px solid #e1e1e1;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.form-group i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a6fd8;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

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

.btn-outline {
    background: transparent;
    border: 1px solid #ddd;
    color: #666;
}

.btn-outline:hover {
    background: #f8f9fa;
    border-color: #bbb;
}

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

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

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

.btn-success:hover {
    background: #218838;
}

.btn-warning {
    background: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background: #e0a800;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

/* 主容器 */
.main-container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    height: 100vh;
    position: fixed;
    overflow-y: auto;
}

.sidebar .logo {
    padding: 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #34495e;
}

.sidebar .logo i {
    font-size: 24px;
    margin-right: 10px;
}

.sidebar .logo span {
    font-size: 18px;
    font-weight: bold;
}

.menu {
    padding: 20px 0;
}

.menu a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #bdc3c7;
    text-decoration: none;
    transition: all 0.3s ease;
}

.menu a:hover,
.menu a.active {
    background: #34495e;
    color: white;
}

.menu a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.menu .logout-link {
    margin-top: auto;
    border-top: 1px solid #34495e;
    position: absolute;
    bottom: 0;
    width: 100%;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
}

/* 仪表盘 */
.dashboard {
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: white;
    font-size: 24px;
}

.bg-blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-green {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.bg-orange {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.bg-red {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
}

.stat-info h3 {
    font-size: 24px;
    margin: 0 0 5px 0;
    color: #333;
}

.stat-info p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

.recent-activity {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.activity-list {
    margin-top: 15px;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

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

.activity-item i {
    font-size: 20px;
    margin-right: 10px;
    margin-top: 3px;
    color: #667eea;
}

.activity-content {
    flex: 1;
}

.activity-content p {
    margin: 0 0 5px 0;
    color: #333;
}

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

/* 页面头部 */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.page-header h2 {
    margin: 0;
    color: #333;
}

/* 搜索过滤器 */
.search-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-filters input,
.search-filters select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.search-filters input {
    flex: 1;
    min-width: 200px;
}

/* 表格 */
.table-responsive {
    overflow-x: auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

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

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

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

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-inactive {
    background: #f8d7da;
    color: #721c24;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-rejected {
    background: #f8d7da;
    color: #721c24;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

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

/* 配置表单 */
.config-form {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.config-group {
    margin-bottom: 30px;
}

.config-group h3 {
    margin-bottom: 15px;
    color: #333;
    padding-bottom: 10px;
    border-bottom: 2px solid #eee;
}

.form-row {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.form-row label {
    width: 150px;
    font-weight: 500;
    color: #555;
}

.form-row input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    margin: 0;
    color: #333;
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #999;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: #333;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }
    
    .sidebar .logo span,
    .menu a span {
        display: none;
    }
    
    .sidebar .logo {
        justify-content: center;
    }
    
    .menu a {
        justify-content: center;
    }
    
    .main-content {
        margin-left: 70px;
    }
    
    .search-filters {
        flex-direction: column;
    }
    
    .search-filters input {
        min-width: auto;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .form-row label {
        margin-bottom: 5px;
    }
}

@media (max-width: 480px) {
    .login-form {
        padding: 20px;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .pagination {
        flex-direction: column;
        gap: 10px;
    }
    
    .data-table {
        font-size: 14px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}