/* ============================================
   七星云防火墙管理系统 - 全新统一UI样式
   白色背景 · 现代极简 · 统一布局
   ============================================ */

/* CSS变量 - 设计系统 */
:root {
    /* 主色调 */
    --primary: #165DFF;
    --primary-hover: #0E42D2;
    --primary-light: #E8F0FF;
    --primary-lighter: #F2F7FF;

    /* 中性色 */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* 状态色 */
    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --info: #3B82F6;
    --info-light: #DBEAFE;

    /* 布局 */
    --sidebar-width: 240px;
    --header-height: 64px;
    --content-padding: 32px;

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

    /* 过渡 */
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #FFFFFF;
    color: var(--gray-700);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

/* ============================================
   登录/注册/首页 - 居中卡片布局
   ============================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #FFFFFF;
    padding: 24px;
    position: relative;
}

.auth-container {
    width: 100%;
    max-width: 440px;
}

.auth-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary) 0%, #4080FF 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(22, 93, 255, 0.2);
}

.auth-logo i {
    color: #fff;
    font-size: 28px;
}

.auth-title {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.auth-subtitle {
    text-align: center;
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.auth-card {
    background: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.auth-card:hover {
    box-shadow: var(--shadow-xl);
}

/* 首页选择卡片 */
.home-select-card {
    background: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 20px;
}

.home-select-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.home-select-avatar {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    background: var(--primary-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.home-select-avatar i {
    color: var(--primary);
    font-size: 32px;
}

.home-select-title {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.home-select-desc {
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.home-feature-list {
    margin-bottom: 24px;
}

.home-feature-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    font-size: 13px;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
}

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

.home-feature-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--primary-lighter);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    flex-shrink: 0;
    font-size: 12px;
}

/* ============================================
   表单元素
   ============================================ */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    color: var(--gray-800);
    background-color: #FFFFFF;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: var(--transition);
    outline: none;
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input:disabled {
    background-color: var(--gray-50);
    color: var(--gray-400);
    cursor: not-allowed;
}

/* 带图标的输入框 */
.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 14px;
    pointer-events: none;
}

.input-icon-wrapper .form-input {
    padding-left: 40px;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
    white-space: nowrap;
}

.btn i {
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #4080FF 100%);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(22, 93, 255, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(22, 93, 255, 0.35);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background-color: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

.btn-success {
    background-color: var(--success);
    color: #FFFFFF;
}

.btn-success:hover {
    background-color: #059669;
    color: #FFFFFF;
}

.btn-danger {
    background-color: var(--danger);
    color: #FFFFFF;
}

.btn-danger:hover {
    background-color: #DC2626;
    color: #FFFFFF;
}

.btn-warning {
    background-color: var(--warning);
    color: #FFFFFF;
}

.btn-warning:hover {
    background-color: #D97706;
    color: #FFFFFF;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary-lighter);
}

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

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* ============================================
   后台布局 - 侧边栏 + 顶部栏 + 内容区
   ============================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
    background-color: #FFFFFF;
}

/* 侧边栏 */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: #FFFFFF;
    border-right: 1px solid var(--gray-200);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.sidebar-brand {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, #4080FF 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    flex-shrink: 0;
}

.sidebar-brand-icon i {
    color: #FFFFFF;
    font-size: 16px;
}

.sidebar-brand-text {
    font-size: 15px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.3;
}

.sidebar-brand-sub {
    font-size: 11px;
    color: var(--gray-400);
    font-weight: 400;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.sidebar-nav-section {
    margin-bottom: 24px;
}

.sidebar-nav-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    font-size: 13px;
    color: var(--gray-600);
    border-radius: var(--radius-md);
    margin-bottom: 2px;
    transition: var(--transition);
    cursor: pointer;
}

.sidebar-nav-item i {
    width: 20px;
    margin-right: 12px;
    font-size: 14px;
    text-align: center;
}

.sidebar-nav-item:hover {
    background-color: var(--gray-50);
    color: var(--gray-900);
}

.sidebar-nav-item.active {
    background-color: var(--primary-lighter);
    color: var(--primary);
    font-weight: 500;
}

.sidebar-nav-item.active i {
    color: var(--primary);
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--gray-100);
}

.sidebar-user {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: var(--radius-md);
    background-color: var(--gray-50);
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, #4080FF 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 14px;
    margin-right: 10px;
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 11px;
    color: var(--gray-400);
}

/* 主内容区 */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 顶部栏 */
.app-header {
    height: var(--header-height);
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--content-padding);
    position: sticky;
    top: 0;
    z-index: 50;
}

.app-header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.app-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-header-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--gray-600);
}

/* 内容区 */
.app-content {
    flex: 1;
    padding: var(--content-padding);
    background-color: #FFFFFF;
}

/* 页面标题 */
.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 14px;
    color: var(--gray-500);
}

/* ============================================
   卡片
   ============================================ */
.card {
    background-color: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    background-color: var(--gray-50);
}

/* 功能卡片网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.feature-card {
    background-color: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
    cursor: pointer;
    border-left: 3px solid var(--primary);
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
    border-left-color: var(--primary);
}

.feature-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--primary-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.feature-card-icon i {
    color: var(--primary);
    font-size: 20px;
}

.feature-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 6px;
}

.feature-card-desc {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 16px;
    line-height: 1.5;
}

.feature-card-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.feature-card-link:hover {
    gap: 8px;
}

.feature-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-left-color: var(--gray-300);
}

.feature-card.disabled .feature-card-icon {
    background-color: var(--gray-100);
}

.feature-card.disabled .feature-card-icon i {
    color: var(--gray-400);
}

/* ============================================
   表格
   ============================================ */
.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table thead {
    background-color: var(--gray-50);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-500);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-bottom: 1px solid var(--gray-200);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background-color: var(--gray-50);
}

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

/* ============================================
   徽章/标签
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    line-height: 1.5;
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary);
}

.badge-success {
    background-color: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background-color: var(--warning-light);
    color: var(--warning);
}

.badge-danger {
    background-color: var(--danger-light);
    color: var(--danger);
}

.badge-info {
    background-color: var(--info-light);
    color: var(--info);
}

.badge-gray {
    background-color: var(--gray-100);
    color: var(--gray-600);
}

/* ============================================
   提示消息
   ============================================ */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
}

.alert i {
    margin-top: 2px;
    flex-shrink: 0;
}

.alert-error {
    background-color: var(--danger-light);
    color: #B91C1C;
    border: 1px solid #FECACA;
}

.alert-success {
    background-color: var(--success-light);
    color: #047857;
    border: 1px solid #A7F3D0;
}

.alert-warning {
    background-color: var(--warning-light);
    color: #B45309;
    border: 1px solid #FDE68A;
}

.alert-info {
    background-color: var(--info-light);
    color: #1D4ED8;
    border: 1px solid #BFDBFE;
}

/* ============================================
   统计卡片
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background-color: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    border-left: 3px solid var(--primary);
}

.stat-card-label {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.stat-card-desc {
    font-size: 12px;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============================================
   选项卡
   ============================================ */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 24px;
    gap: 4px;
}

.tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition);
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ============================================
   分页
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    font-size: 13px;
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .current {
    background-color: var(--primary);
    color: #FFFFFF;
    border-color: var(--primary);
}

.pagination .disabled {
    color: var(--gray-300);
    cursor: not-allowed;
}

.pagination-info {
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 12px;
}

/* ============================================
   空状态
   ============================================ */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background-color: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state-icon i {
    font-size: 28px;
    color: var(--gray-400);
}

.empty-state-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.empty-state-desc {
    font-size: 13px;
    color: var(--gray-500);
}

/* ============================================
   加载动画
   ============================================ */
.loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-size: 14px;
}

.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.4s ease forwards;
    opacity: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   页脚
   ============================================ */
.app-footer {
    padding: 20px var(--content-padding);
    border-top: 1px solid var(--gray-100);
    text-align: center;
    font-size: 12px;
    color: var(--gray-400);
    background-color: #FFFFFF;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--gray-400);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 200px;
        --content-padding: 20px;
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
        --content-padding: 16px;
    }

    .app-sidebar {
        transform: translateX(-100%);
    }

    .app-sidebar.open {
        transform: translateX(0);
    }

    .app-main {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: inline-flex !important;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background-color: #FFFFFF;
    color: var(--gray-600);
    cursor: pointer;
    margin-right: 12px;
}

/* 遮罩层 */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* ============================================
   页面实际使用的类名 - 侧边栏导航
   ============================================ */
.app-body {
    display: flex;
    min-height: 100vh;
    background-color: #FFFFFF;
}

.brand-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.3;
}

.brand-subtitle {
    font-size: 11px;
    color: var(--gray-400);
    font-weight: 400;
    margin-top: 2px;
}

.nav-group {
    margin-bottom: 24px;
}

.nav-group-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    font-size: 13px;
    color: var(--gray-600);
    border-radius: var(--radius-md);
    margin-bottom: 2px;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
}

.nav-item i {
    width: 20px;
    margin-right: 12px;
    font-size: 14px;
    text-align: center;
}

.nav-item:hover {
    background-color: var(--gray-50);
    color: var(--gray-900);
}

.nav-item.active {
    background-color: var(--primary-lighter);
    color: var(--primary);
    font-weight: 500;
}

.nav-item.active i {
    color: var(--primary);
}

.sidebar-user-logout {
    font-size: 12px;
    color: var(--gray-400);
    text-decoration: none;
    margin-top: 4px;
    display: inline-block;
}

.sidebar-user-logout:hover {
    color: var(--danger);
}

/* 顶部栏 - 页面实际使用的类名 */
.app-topbar {
    height: var(--header-height);
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--content-padding);
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-menu-btn {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background-color: #FFFFFF;
    color: var(--gray-600);
    cursor: pointer;
    margin-right: 12px;
}

.topbar-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background-color: #FFFFFF;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.topbar-action-btn:hover {
    background-color: var(--gray-50);
    color: var(--primary);
    border-color: var(--gray-300);
}

/* 遮罩层 show 状态 */
.sidebar-overlay.show {
    display: block;
}

/* 页脚内容 */
.footer-content {
    font-size: 12px;
    color: var(--gray-400);
}

/* ============================================
   功能页面内容区组件样式
   ============================================ */
/* 查询表单卡片 */
.query-card {
    background-color: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.query-form {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.query-form .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

/* 缓存状态指示器 */
.cache-status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 13px;
}

.cache-status-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-600);
}

.cache-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success);
}

.cache-status-dot.off {
    background-color: var(--gray-400);
}

/* 结果区域 */
.result-section {
    background-color: #FFFFFF;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.result-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.result-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-900);
}

.result-body {
    padding: 24px;
}

/* 统计信息行 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-item {
    background-color: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
}

.stat-item-label {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 6px;
}

.stat-item-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.stat-item-unit {
    font-size: 12px;
    color: var(--gray-400);
    margin-left: 2px;
}

/* IP 列表卡片 */
.ip-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ip-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background-color: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.ip-item:hover {
    background-color: var(--primary-lighter);
    border-color: var(--primary-light);
}

.ip-item-address {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
}

.ip-item-meta {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 2px;
}

.ip-item-actions {
    display: flex;
    gap: 8px;
}

/* 通知条 */
.notification-bar {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.notification-bar.success {
    background-color: var(--success-light);
    color: #047857;
    border: 1px solid #A7F3D0;
}

.notification-bar.error {
    background-color: var(--danger-light);
    color: #B91C1C;
    border: 1px solid #FECACA;
}

.notification-bar.info {
    background-color: var(--info-light);
    color: #1D4ED8;
    border: 1px solid #BFDBFE;
}

/* 过滤器 */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-select {
    padding: 8px 12px;
    font-size: 13px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: #FFFFFF;
    color: var(--gray-700);
    cursor: pointer;
}

/* 详情模态框 */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background-color: #FFFFFF;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background-color: transparent;
    color: var(--gray-400);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* 详情列表 */
.detail-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.detail-label {
    font-size: 13px;
    color: var(--gray-500);
}

.detail-value {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-800);
    text-align: right;
}

/* 加载中 */
.loading-container {
    text-align: center;
    padding: 48px 24px;
    color: var(--gray-500);
}

.loading-container i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 12px;
    animation: spin 1s linear infinite;
}

/* 错误提示 */
.error-container {
    text-align: center;
    padding: 48px 24px;
}

.error-container i {
    font-size: 32px;
    color: var(--danger);
    margin-bottom: 12px;
}

.error-text {
    color: var(--danger);
    font-size: 14px;
}

/* 响应式补充 */
@media (max-width: 768px) {
    .topbar-menu-btn {
        display: inline-flex !important;
    }

    .query-form {
        flex-direction: column;
    }

    .query-form .form-group {
        width: 100%;
    }

    .stats-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* ============================================
   V2 全新设计系统 - 顶部导航 + 浅灰分区 + 大圆角卡片
   ============================================ */
.v2-body {
    background: #f5f6f8;
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: #1d2129;
}

/* 顶部导航栏 */
.v2-topnav {
    background: #ffffff;
    border-bottom: 1px solid #eef0f3;
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0 28px;
    height: 62px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.v2-topnav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.v2-topnav-logo {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%);
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 17px;
    box-shadow: 0 4px 12px rgba(22,93,255,0.25);
}

.v2-topnav-title {
    font-size: 16px;
    font-weight: 700;
    color: #1d2129;
    line-height: 1.2;
}

.v2-topnav-subtitle {
    font-size: 11px;
    color: #86909c;
}

.v2-topnav-menu {
    display: flex;
    gap: 4px;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.v2-topnav-menu::-webkit-scrollbar { display: none; }

.v2-nav-item {
    padding: 7px 16px;
    border-radius: 20px;
    font-size: 13px;
    color: #4e5969;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}
.v2-nav-item i { font-size: 13px; }
.v2-nav-item:hover {
    background: #f2f3f5;
    color: #1d2129;
}
.v2-nav-item.active {
    background: linear-gradient(135deg, #165DFF, #4080FF);
    color: #fff;
    font-weight: 500;
    box-shadow: 0 3px 10px rgba(22,93,255,0.25);
}

.v2-topnav-user {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.v2-user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, #165DFF, #4080FF);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
}

.v2-user-name {
    font-size: 13px;
    color: #4e5969;
    font-weight: 500;
}

.v2-logout-btn {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    border: 1px solid #eef0f3;
    background: #fff;
    color: #86909c;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.v2-logout-btn:hover {
    background: #ffece8;
    border-color: #ffccc7;
    color: #f53f3f;
}

/* 主内容区 */
.v2-main {
    max-width: 1240px;
    margin: 0 auto;
    padding: 28px;
}

/* 页面Hero */
.v2-hero {
    margin-bottom: 22px;
}
.v2-hero-title {
    font-size: 26px;
    font-weight: 700;
    color: #1d2129;
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}
.v2-hero-desc {
    font-size: 14px;
    color: #86909c;
}

/* 查询条 */
.v2-querybar {
    background: #ffffff;
    border: 1px solid #eef0f3;
    border-radius: 18px;
    padding: 22px;
    margin-bottom: 22px;
    display: flex;
    gap: 14px;
    align-items: flex-end;
    flex-wrap: wrap;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.v2-form-group {
    flex: 1;
    min-width: 260px;
}

.v2-form-label {
    display: block;
    font-size: 12px;
    color: #86909c;
    margin-bottom: 7px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.v2-input-wrap {
    position: relative;
}

.v2-input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #c9cdd4;
    font-size: 15px;
    z-index: 1;
    pointer-events: none;
}

.v2-input, .v2-select {
    width: 100%;
    padding: 13px 16px 13px 46px;
    border: 1.5px solid #e5e6eb;
    border-radius: 12px;
    font-size: 14px;
    color: #1d2129;
    background: #fafbfc;
    transition: all 0.2s ease;
    outline: none;
    font-family: inherit;
    box-sizing: border-box;
}
.v2-select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2386909c' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}
.v2-input:focus, .v2-select:focus {
    border-color: #165DFF;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(22,93,255,0.08);
}
.v2-input::placeholder { color: #c9cdd4; }
.v2-input:disabled {
    background: #f2f3f5;
    color: #c9cdd4;
    cursor: not-allowed;
}

.v2-btn {
    padding: 13px 26px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    white-space: nowrap;
}
.v2-btn-primary {
    background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(22,93,255,0.28);
}
.v2-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(22,93,255,0.35);
}
.v2-btn-primary:active { transform: translateY(0); }
.v2-btn-secondary {
    background: #f2f3f5;
    color: #4e5969;
}
.v2-btn-secondary:hover { background: #e5e6eb; }
.v2-btn-danger {
    background: linear-gradient(135deg, #f53f3f, #ff7875);
    color: #fff;
    box-shadow: 0 4px 14px rgba(245,63,63,0.25);
}
.v2-btn-warning {
    background: linear-gradient(135deg, #ff7d00, #ff9a2e);
    color: #fff;
    box-shadow: 0 4px 14px rgba(255,125,0,0.25);
}
.v2-btn-sm {
    padding: 8px 16px;
    font-size: 12px;
    border-radius: 8px;
}

/* 统计卡片网格 */
.v2-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.v2-stat-card {
    background: #ffffff;
    border: 1px solid #eef0f3;
    border-radius: 18px;
    padding: 22px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    transition: all 0.25s ease;
}
.v2-stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.07);
}
.v2-stat-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #165DFF, #4080FF);
}

.v2-stat-label {
    font-size: 12px;
    color: #86909c;
    margin-bottom: 10px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.v2-stat-value {
    font-size: 30px;
    font-weight: 700;
    color: #1d2129;
    margin-bottom: 6px;
    letter-spacing: -0.5px;
    line-height: 1.1;
}
.v2-stat-desc {
    font-size: 12px;
    color: #c9cdd4;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 内容卡片 */
.v2-card {
    background: #ffffff;
    border: 1px solid #eef0f3;
    border-radius: 18px;
    overflow: hidden;
    margin-bottom: 22px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}
.v2-card-header {
    padding: 18px 22px;
    border-bottom: 1px solid #f2f3f5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.v2-card-title {
    font-size: 15px;
    font-weight: 600;
    color: #1d2129;
    display: flex;
    align-items: center;
    gap: 8px;
}
.v2-card-title i { color: #165DFF; }
.v2-card-body {
    padding: 22px;
}

/* 胶囊分段选项卡 */
.v2-tabs {
    display: inline-flex;
    background: #eef0f3;
    border-radius: 14px;
    padding: 5px;
    margin-bottom: 22px;
    gap: 3px;
}
.v2-tab {
    padding: 9px 22px;
    border-radius: 10px;
    font-size: 13px;
    color: #4e5969;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}
.v2-tab:hover { color: #1d2129; }
.v2-tab.active {
    background: #ffffff;
    color: #165DFF;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* 列表项卡片 */
.v2-list-item {
    background: #fafbfc;
    border: 1px solid #eef0f3;
    border-radius: 14px;
    padding: 16px 20px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
    gap: 12px;
}
.v2-list-item:hover {
    background: #fff;
    border-color: #c9cdd4;
    box-shadow: 0 4px 14px rgba(0,0,0,0.05);
    transform: translateX(2px);
}

/* 空状态 */
.v2-empty {
    text-align: center;
    padding: 60px 20px;
}
.v2-empty-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
    background: #f2f3f5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: #c9cdd4;
}
.v2-empty-title {
    font-size: 17px;
    font-weight: 600;
    color: #4e5969;
    margin-bottom: 6px;
}
.v2-empty-desc {
    font-size: 13px;
    color: #86909c;
}

/* 徽章 */
.v2-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 11px;
    border-radius: 7px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.4;
}
.v2-badge-primary { background: #e8f3ff; color: #165DFF; }
.v2-badge-success { background: #e8ffea; color: #00b42a; }
.v2-badge-danger { background: #ffece8; color: #f53f3f; }
.v2-badge-warning { background: #fff7e8; color: #ff7d00; }
.v2-badge-gray { background: #f2f3f5; color: #86909c; }

/* 加载 */
.v2-loading {
    text-align: center;
    padding: 44px 20px;
    color: #86909c;
}
.v2-loading i {
    font-size: 30px;
    color: #165DFF;
    margin-bottom: 14px;
    animation: spin 1s linear infinite;
    display: block;
}

/* 提示条 */
.v2-alert {
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-weight: 500;
}
.v2-alert-warning {
    background: #fff7e8;
    color: #b85c00;
    border: 1px solid #ffe4ba;
}
.v2-alert-error {
    background: #ffece8;
    color: #cb2634;
    border: 1px solid #ffccc7;
}
.v2-alert-success {
    background: #e8ffea;
    color: #007a29;
    border: 1px solid #abe3b1;
}

/* 模态框 */
.v2-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(29,33,41,0.45);
    backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.v2-modal-overlay.show { display: flex; }
.v2-modal {
    background: #fff;
    border-radius: 22px;
    width: 100%;
    max-width: 580px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 24px 60px rgba(0,0,0,0.18);
    animation: modalIn 0.25s ease;
}
@keyframes modalIn {
    from { opacity: 0; transform: translateY(12px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
.v2-modal-header {
    padding: 22px 26px;
    border-bottom: 1px solid #f2f3f5;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.v2-modal-title {
    font-size: 18px;
    font-weight: 700;
    color: #1d2129;
}
.v2-modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: #f2f3f5;
    border-radius: 10px;
    color: #86909c;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 16px;
}
.v2-modal-close:hover {
    background: #ffece8;
    color: #f53f3f;
}
.v2-modal-body { padding: 26px; }

/* 详情列表 */
.v2-detail-list { display: flex; flex-direction: column; }
.v2-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 0;
    border-bottom: 1px solid #f2f3f5;
    gap: 16px;
}
.v2-detail-item:last-child { border-bottom: none; }
.v2-detail-label {
    font-size: 13px;
    color: #86909c;
    flex-shrink: 0;
}
.v2-detail-value {
    font-size: 13px;
    font-weight: 600;
    color: #1d2129;
    text-align: right;
    word-break: break-all;
}

/* 分页 */
.v2-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 20px;
    flex-wrap: wrap;
}
.v2-page-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 14px;
    border: 1.5px solid #e5e6eb;
    background: #fff;
    border-radius: 10px;
    color: #4e5969;
    font-size: 13px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: all 0.2s;
    font-weight: 500;
}
.v2-page-btn:hover {
    border-color: #165DFF;
    color: #165DFF;
}
.v2-page-btn.active {
    background: linear-gradient(135deg, #165DFF, #4080FF);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 3px 10px rgba(22,93,255,0.25);
}
.v2-page-info {
    font-size: 13px;
    color: #86909c;
    margin: 0 14px;
}

/* 过滤按钮组 */
.v2-filter-group {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

/* 开关 */
.v2-switch {
    position: relative;
    display: inline-block;
    width: 46px;
    height: 26px;
    flex-shrink: 0;
}
.v2-switch input { opacity: 0; width: 0; height: 0; }
.v2-switch-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #e5e6eb;
    border-radius: 26px;
    transition: 0.3s;
}
.v2-switch-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: 0.3s;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.v2-switch input:checked + .v2-switch-slider {
    background: linear-gradient(135deg, #165DFF, #4080FF);
}
.v2-switch input:checked + .v2-switch-slider::before {
    transform: translateX(20px);
}

/* 页脚 */
.v2-footer {
    text-align: center;
    padding: 24px;
    font-size: 12px;
    color: #c9cdd4;
}

/* 响应式 */
@media (max-width: 900px) {
    .v2-topnav { padding: 0 16px; height: 58px; gap: 12px; }
    .v2-topnav-title, .v2-topnav-subtitle, .v2-user-name { display: none; }
    .v2-main { padding: 18px; }
    .v2-hero-title { font-size: 21px; }
    .v2-querybar { flex-direction: column; align-items: stretch; padding: 18px; }
    .v2-form-group { min-width: 100%; }
    .v2-btn { width: 100%; justify-content: center; }
    .v2-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
    .v2-stat-value { font-size: 24px; }
    .v2-stat-card { padding: 18px; }
    .v2-card-body { padding: 18px; }
    .v2-tabs { width: 100%; overflow-x: auto; }
    .v2-list-item { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
    .v2-stats { grid-template-columns: 1fr; }
}

/* === V2 Feature Cards (首页功能导航) === */
.v2-feature-card {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: #fff;
    border-radius: 18px;
    border: 1px solid #e5e6eb;
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}
.v2-feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: linear-gradient(180deg, #165DFF, #4080FF);
    opacity: 0;
    transition: opacity 0.25s ease;
}
.v2-feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(22, 93, 255, 0.12);
    border-color: #c9cdd4;
}
.v2-feature-card:hover::before { opacity: 1; }
.v2-feature-disabled {
    opacity: 0.5;
    pointer-events: none;
}
.v2-feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    margin-bottom: 14px;
}
.v2-feature-title {
    font-size: 16px;
    font-weight: 600;
    color: #1d2129;
    margin-bottom: 6px;
}
.v2-feature-desc {
    font-size: 13px;
    color: #86909c;
    line-height: 1.5;
    margin-bottom: 14px;
    flex: 1;
}
.v2-feature-link {
    font-size: 13px;
    font-weight: 500;
    color: #165DFF;
    display: flex;
    align-items: center;
    gap: 4px;
}
.v2-feature-card:hover .v2-feature-link i {
    transform: translateX(3px);
    transition: transform 0.25s ease;
}

/* === V2 Detail List (连接数等详情列表) === */
.v2-detail-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.v2-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f2f3f5;
}
.v2-detail-item:last-child { border-bottom: none; }
.v2-detail-label {
    font-size: 13px;
    color: #86909c;
}
.v2-detail-value {
    font-size: 14px;
    font-weight: 600;
    color: #1d2129;
}

/* === V2 Badge variants === */
.v2-badge-primary {
    background: #e8f3ff;
    color: #165DFF;
}
.v2-badge-success {
    background: #e8ffea;
    color: #00B42A;
}
.v2-badge-warning {
    background: #fff7e8;
    color: #FF7D00;
}
.v2-badge-gray {
    background: #f2f3f5;
    color: #86909c;
}
/* === 移动端折叠导航 === */
.v2-mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: #1d2129;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: 10px;
    transition: all 0.2s;
    flex-shrink: 0;
}
.v2-mobile-toggle:hover { background: #f2f3f5; }
.v2-mobile-toggle.active { background: #e8f3ff; color: #165DFF; }

@media (max-width: 900px) {
    .v2-mobile-toggle { display: block; }
    .v2-topnav { position: relative; flex-wrap: wrap; height: auto; min-height: 58px; }
    .v2-topnav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 12px 16px 16px;
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        border-top: 1px solid #e5e6eb;
        gap: 4px;
        overflow: visible;
        z-index: 100;
        border-radius: 0 0 18px 18px;
    }
    .v2-topnav-menu.open {
        display: flex;
        animation: v2SlideDown 0.2s ease;
    }
    .v2-topnav-menu .v2-nav-item {
        width: 100%;
        padding: 12px 16px;
        justify-content: flex-start;
        border-radius: 12px;
    }
    @keyframes v2SlideDown {
        from { opacity: 0; transform: translateY(-8px); }
        to { opacity: 1; transform: translateY(0); }
    }
}
/* === 移动端修复 === */
.v2-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.v2-profile-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
}
@media (max-width: 900px) {
    /* 移动端显示用户名 */
    .v2-user-name {
        display: block !important;
        font-size: 12px;
        max-width: 80px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    /* 表单改单列 */
    .v2-form-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    /* 个人信息改单列 */
    .v2-profile-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    /* 确保输入框全宽 */
    .v2-form-grid .v2-form-group {
        min-width: 100%;
    }
}
/* PC端导航居中，移动端保持不变 */
@media (min-width: 901px) {
    .v2-topnav-menu {
        justify-content: center;
    }
}
/* === PC端左侧边栏导航（>900px），移动端保持顶部折叠不变 === */
@media (min-width: 901px) {
    /* 侧边栏固定在左侧 */
    .v2-topnav {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 248px;
        flex-direction: column;
        align-items: stretch;
        height: 100vh;
        padding: 22px 16px 18px;
        gap: 6px;
        border-right: 1px solid #eef0f3;
        border-bottom: none;
        overflow-y: auto;
        overflow-x: hidden;
        z-index: 100;
        background: #fff;
    }
    .v2-topnav::-webkit-scrollbar { width: 4px; }
    .v2-topnav::-webkit-scrollbar-thumb { background: #e5e6eb; border-radius: 4px; }

    /* 品牌区 */
    .v2-topnav-brand {
        margin-bottom: 22px;
        padding-bottom: 18px;
        border-bottom: 1px solid #f2f3f5;
        flex-shrink: 0;
    }
    .v2-topnav-title { display: block !important; }
    .v2-topnav-subtitle { display: block !important; }

    /* 菜单垂直排列 */
    .v2-topnav-menu {
        flex-direction: column;
        gap: 3px;
        overflow: visible;
        flex: 1;
        justify-content: flex-start !important;
    }

    /* 菜单项全宽左对齐 */
    .v2-nav-item {
        width: 100%;
        padding: 11px 16px;
        justify-content: flex-start;
        border-radius: 12px;
        font-size: 13.5px;
    }
    .v2-nav-item i { font-size: 15px; width: 18px; text-align: center; }

    /* 账号分组：个人信息前加分隔线+标题（用margin，不占用链接背景区） */
    .v2-topnav-menu a[href="profile.php"] {
        margin-top: 30px;
        position: relative;
    }
    .v2-topnav-menu a[href="profile.php"]::before {
        content: '账号';
        position: absolute;
        top: -22px;
        left: 16px;
        font-size: 11px;
        font-weight: 700;
        color: #c9cdd4;
        text-transform: uppercase;
        letter-spacing: 0.8px;
    }
    .v2-topnav-menu a[href="profile.php"]::after {
        content: '';
        position: absolute;
        top: -6px;
        left: 0;
        right: 0;
        height: 1px;
        background: #f2f3f5;
    }

    /* 用户区固定在底部 */
    .v2-topnav-user {
        margin-top: auto;
        padding-top: 16px;
        border-top: 1px solid #f2f3f5;
        flex-shrink: 0;
    }
    .v2-user-name { display: block !important; }

    /* PC端隐藏汉堡按钮 */
    .v2-mobile-toggle {
        display: none !important;
    }

    /* 主内容区加左边距，避开侧边栏 */
    .v2-main {
        margin-left: 248px;
        max-width: none;
        padding: 28px 36px;
    }

    /* 浮动状态条位置调整（避开侧边栏） */
    #cacheStatus, #filterStatus {
        right: 24px !important;
    }
}