:root {
    --primary-color: #1a73e8;
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --border-color: #e0e0e0;
    --success-color: #34a853;
    --warning-color: #fbbc05;
    --danger-color: #ea4335;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background-color: #f8f9fa;
    color: var(--text-color);
}

/* 侧边栏样式 */
.sidebar {
    background-color: white;
    border-right: 1px solid var(--border-color);
    padding: 22px 0 18px 0;
    height: 100vh;
    position: fixed;
    width: 235px;
}

.sidebar-brand {
    padding: 0 35px;
    margin-bottom: 18px;
    text-align: left;
    margin-top: 18px;
}

.sidebar-brand h1 {
    font-size: 31px;
    color: var(--primary-color);
    margin: 0;
    font-weight: 600;
}

.nav-item {
    margin: 5px 0;
}

.nav-link {
    color: var(--text-color);
    padding: 8px 35px;
    border-radius: 0 20px 20px 0;
    margin-right: 18px;
    transition: all 0.3s ease;
    font-size: 0.98em;
}

.nav-link:hover, .nav-link.active {
    background-color: #e8f0fe;
    color: var(--primary-color);
}

.nav-link i {
    margin-right: 9px;
    width: 20px;
    text-align: center;
}

/* 主内容区域样式 */
.main-content {
    margin-left: 235px;
    padding: 30px;
}

/* 用户信息栏 */
.user-info-bar {
    background-color: transparent;
    padding: 10px 0;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 20px;
}

.user-info {
    font-size: 14px;
    color: var(--text-color);
    font-weight: 500;
}

/* 顶部搜索栏 */
.search-bar {
    background-color: white;
    padding: 15px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.search-input {
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 8px 20px;
    width: 400px;
    outline: none;
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.1);
}

/* 统计卡片样式 */
.stats-card {
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.stats-card .title {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.stats-card .value {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.stats-card .trend {
    font-size: 14px;
}

.trend.up {
    color: var(--success-color);
}

.trend.down {
    color: var(--danger-color);
}

/* 图表容器样式 */
.chart-container {
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

/* 表格样式 */
.table-container {
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* 紧凑型表格容器 */
.table-container.compact-table {
    padding: 16px;
}

.custom-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.custom-table th {
    background-color: #f8f9fa;
    padding: 12px;
    font-weight: 500;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.custom-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.custom-table tr:last-child td {
    border-bottom: none;
}

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

.status.success {
    background-color: #e6f4ea;
    color: var(--success-color);
}

.status.failed {
    background-color: #fce8e6;
    color: var(--danger-color);
}

/* 登录页面样式 */
.login-container {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f8f9fa;
}

.login-form {
    background-color: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    width: 400px;
}

.login-form .logo {
    text-align: center;
    margin-bottom: 40px;
}

.login-form .logo h1 {
    color: var(--primary-color);
    margin: 0;
    font-size: 36px;
}

.login-form .form-control {
    border-radius: 24px;
    padding: 12px 20px;
    height: auto;
    border: 1px solid var(--border-color);
}

.login-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.1);
}

.login-form .btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: 24px;
    padding: 10px 20px;
    width: 100%;
}

/* 表单样式 */
.form-container {
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.form-control {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 16px;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.1);
}

.btn {
    padding: 8px 16px;
    border-radius: 8px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #1558c4;
    border-color: #1558c4;
}

/* 通知消息样式 */
.flash-messages {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 58px;
    }
    
    .sidebar-brand h1,
    .nav-link span {
        display: none;
    }
    
    .main-content {
        margin-left: 58px;
    }
    
    .search-input {
        width: 200px;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #4285f4;
        --secondary-color: #1f1f1f;
        --text-color: #e0e0e0;
        --border-color: #3c3c3c;
    }
    
    body {
        background-color: #121212;
    }
    
    .sidebar, .search-bar, .stats-card, .chart-container, .table-container, .form-container {
        background-color: #1f1f1f;
    }
    
    .nav-link:hover, .nav-link.active {
        background-color: #3c3c3c;
    }
    
    .custom-table th {
        background-color: #2d2d2d;
    }
}

/* 添加减小分类标题边距的样式 */
.nav-item.mt-4 {
    margin-top: 13px !important;
    margin-bottom: 3px;
}

/* 增加菜单标题的左内边距，使其向右移 */
.nav-item.mt-4 small.text-muted.px-4 {
    padding-left: 35px !important;
}

/* 子菜单样式 */
.submenu {
    padding-left: 35px;
}

.submenu .nav-link {
    padding: 6px 35px;
    font-size: 0.93em;
}

.dropdown-toggle::after {
    display: none;
}

.nav-link .fa-chevron-down {
    transition: transform 0.3s;
    font-size: 0.8em;
}

.nav-link[aria-expanded="true"] .fa-chevron-down {
    transform: rotate(180deg);
}