/* ============================================
   企业数据管理平台 - 全局样式
   ============================================ */

/* CSS Variables */
:root {
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 64px;
    --sidebar-bg: #1e1e2d;
    --sidebar-hover: #1b1b28;
    --sidebar-active: #12121a;
    --sidebar-text: #a2a3b7;
    --sidebar-text-active: #ffffff;
    --topbar-height: 56px;
    --primary: #4e73df;
    --primary-light: #eef2ff;
    --success: #1cc88a;
    --success-light: #e6f9f3;
    --warning: #f6c23e;
    --warning-light: #fef9e7;
    --danger: #e74a3b;
    --danger-light: #fdecea;
    --info: #36b9cc;
    --info-light: #e8f8fb;
    --gray-50: #f8f9fc;
    --gray-100: #f1f3f8;
    --gray-200: #e3e6f0;
    --gray-300: #d1d3e0;
    --gray-400: #b7b9cc;
    --gray-500: #858796;
    --gray-600: #6c757d;
    --gray-700: #5a5c69;
    --gray-800: #3a3b45;
    --gray-900: #212529;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

/* Reset */
*, *::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: var(--font-family);
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a:hover {
    text-decoration: underline;
}

/* ============================================
   登录页样式
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #4e73df 0%, #1cc88a 100%);
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    animation: fadeInUp 0.5s ease;
}

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

.login-card .logo h1 {
    font-size: 1.6rem;
    color: var(--gray-800);
    font-weight: 700;
}

.login-card .logo p {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-top: 4px;
}

.login-card .form-group {
    margin-bottom: 20px;
}

.login-card .form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.login-card .form-group input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
    font-family: var(--font-family);
}

.login-card .form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 115, 223, 0.15);
}

.login-card .btn-login {
    width: 100%;
    padding: 11px 20px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
}

.login-card .btn-login:hover {
    background: #3a5fd8;
    box-shadow: 0 4px 15px rgba(78, 115, 223, 0.4);
}

.login-card .btn-login:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.login-card .error-msg {
    background: var(--danger-light);
    color: var(--danger);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: none;
}

.login-card .error-msg.show {
    display: block;
    animation: shake 0.5s ease;
}

/* ============================================
   SPA主框架布局
   ============================================ */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width 0.3s ease;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-logo {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.sidebar-logo .logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--info));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.sidebar-logo .logo-text {
    color: var(--sidebar-text-active);
    font-weight: 700;
    font-size: 1.05rem;
    margin-left: 12px;
    white-space: nowrap;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.sidebar.collapsed .logo-text {
    opacity: 0;
    width: 0;
    margin-left: 0;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.sidebar-nav .nav-section {
    padding: 8px 20px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.2s ease;
}

.sidebar.collapsed .nav-section {
    opacity: 0;
    height: 0;
    padding: 0;
}

.sidebar-nav .nav-item {
    display: flex;
    align-items: center;
    padding: 11px 20px;
    color: var(--sidebar-text);
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
    text-decoration: none;
    white-space: nowrap;
    font-size: 0.9rem;
}

.sidebar-nav .nav-item:hover {
    background: var(--sidebar-hover);
    color: var(--sidebar-text-active);
    text-decoration: none;
}

.sidebar-nav .nav-item.active {
    background: var(--sidebar-active);
    color: var(--sidebar-text-active);
    border-left-color: var(--primary);
    font-weight: 600;
}

.sidebar-nav .nav-item .nav-icon {
    width: 20px;
    text-align: center;
    margin-right: 12px;
    font-size: 1rem;
    flex-shrink: 0;
}

.sidebar.collapsed .nav-item .nav-label {
    opacity: 0;
    width: 0;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 11px 0;
}

.sidebar.collapsed .nav-item .nav-icon {
    margin-right: 0;
}

.sidebar-toggle {
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid rgba(255,255,255,0.06);
    cursor: pointer;
    color: var(--sidebar-text);
    transition: var(--transition);
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    color: var(--sidebar-text-active);
    background: var(--sidebar-hover);
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left 0.3s ease;
    min-width: 0;
}

.main-content.expanded {
    margin-left: var(--sidebar-collapsed-width);
}

/* 顶栏 */
.topbar {
    height: var(--topbar-height);
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 90;
    box-shadow: var(--shadow-sm);
}

.topbar .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.topbar .breadcrumb .current {
    color: var(--gray-800);
    font-weight: 600;
}

.topbar .user-menu {
    position: relative;
    cursor: pointer;
}

.topbar .user-menu .user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.topbar .user-menu .user-info:hover {
    background: var(--gray-100);
}

.topbar .user-menu .user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.topbar .user-menu .user-name {
    font-weight: 600;
    color: var(--gray-800);
    font-size: 0.9rem;
}

.topbar .user-menu .user-role {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.topbar .user-menu .dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: 8px 0;
    display: none;
    z-index: 200;
    border: 1px solid var(--gray-200);
}

.topbar .user-menu .dropdown.show {
    display: block;
    animation: fadeIn 0.15s ease;
}

.topbar .user-menu .dropdown-item {
    padding: 9px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-700);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.topbar .user-menu .dropdown-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.topbar .user-menu .dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 6px 0;
}

/* 内容区 */
.page-content {
    padding: 24px;
    min-height: calc(100vh - var(--topbar-height));
}

/* ============================================
   通用组件样式
   ============================================ */

/* 卡片 */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    border: 1px solid var(--gray-200);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gray-800);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius) var(--radius);
}

/* 统计卡片 */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    border-left-width: 4px;
}

.stat-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.stat-card.primary { border-left-color: var(--primary); }
.stat-card.success { border-left-color: var(--success); }
.stat-card.warning { border-left-color: var(--warning); }
.stat-card.danger { border-left-color: var(--danger); }
.stat-card.info { border-left-color: var(--info); }

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.stat-card.primary .stat-icon { background: var(--primary-light); color: var(--primary); }
.stat-card.success .stat-icon { background: var(--success-light); color: var(--success); }
.stat-card.warning .stat-icon { background: var(--warning-light); color: var(--warning); }
.stat-card.danger .stat-icon { background: var(--danger-light); color: var(--danger); }
.stat-card.info .stat-icon { background: var(--info-light); color: var(--info); }

.stat-card .stat-info .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
    line-height: 1.2;
}

.stat-card .stat-info .stat-label {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 2px;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
    white-space: nowrap;
    text-decoration: none;
}

.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover:not(:disabled) {
    background: #3a5fd8;
    box-shadow: 0 4px 12px rgba(78, 115, 223, 0.3);
}

.btn-success {
    background: var(--success);
    color: var(--white);
    border-color: var(--success);
}
.btn-success:hover:not(:disabled) {
    background: #16b07a;
    box-shadow: 0 4px 12px rgba(28, 200, 138, 0.3);
}

.btn-warning {
    background: var(--warning);
    color: var(--white);
    border-color: var(--warning);
}
.btn-warning:hover:not(:disabled) {
    background: #e5b42e;
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
    border-color: var(--danger);
}
.btn-danger:hover:not(:disabled) {
    background: #d52a1b;
    box-shadow: 0 4px 12px rgba(231, 74, 59, 0.3);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-primary:hover:not(:disabled) {
    background: var(--primary);
    color: var(--white);
}

.btn-outline-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}
.btn-outline-danger:hover:not(:disabled) {
    background: var(--danger);
    color: var(--white);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--gray-600);
    border-color: var(--gray-400);
}
.btn-outline-secondary:hover:not(:disabled) {
    background: var(--gray-100);
    color: var(--gray-800);
    border-color: var(--gray-600);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

.btn-group {
    display: flex;
    gap: 8px;
}

/* 输入框 */
.form-control {
    width: 100%;
    padding: 9px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: var(--transition);
    outline: none;
    font-family: var(--font-family);
    background: var(--white);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 115, 223, 0.12);
}

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

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 5px;
    font-size: 0.85rem;
}

.form-select {
    width: 100%;
    padding: 9px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: var(--transition);
    outline: none;
    font-family: var(--font-family);
    background: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23858796' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 115, 223, 0.12);
}

/* 搜索栏 */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.search-bar .search-input {
    position: relative;
    flex: 1;
    min-width: 200px;
    max-width: 360px;
}

.search-bar .search-input input {
    padding-left: 36px;
}

.search-bar .search-input .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.9rem;
    pointer-events: none;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

table thead th {
    background: var(--gray-50);
    padding: 12px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-800);
    vertical-align: middle;
}

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

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

/* 标签 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: #b88a00; }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* 标签页 */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 20px;
    gap: 0;
}

.tab-item {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--gray-500);
    font-weight: 600;
    font-size: 0.9rem;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-item:hover {
    color: var(--gray-800);
}

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

/* Tab 按钮（<button> 版本，用于 AI 诊断页） */
.tab-btn {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--gray-500);
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    white-space: nowrap;
    background: transparent;
    font-family: var(--font-family);
}

.tab-btn:hover {
    color: var(--gray-800);
}

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

/* 诊断结果展示 */
.diag-section {
    margin-bottom: 16px;
}

.diag-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.diag-content {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 0.9rem;
    color: var(--gray-800);
    line-height: 1.6;
}

.diag-root-cause {
    background: var(--primary-light);
    border-color: #dfe6fb;
    font-weight: 600;
    font-size: 0.95rem;
}

.diag-suggestions {
    margin: 0;
    padding-left: 22px;
}

.diag-suggestions li {
    margin-bottom: 6px;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--gray-800);
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
}

.pagination .page-btn {
    min-width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--gray-700);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
    font-family: var(--font-family);
}

.pagination .page-btn:hover:not(:disabled):not(.active) {
    background: var(--gray-50);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .page-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination .page-btn:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.pagination .page-info {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin: 0 8px;
}

/* 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    animation: scaleIn 0.2s ease;
}

.modal.modal-sm { max-width: 400px; }
.modal.modal-lg { max-width: 700px; }

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-800);
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--gray-100);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--gray-500);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* 加载状态 */
.loading-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
    color: var(--gray-500);
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin-right: 12px;
}

.spinner-sm {
    width: 18px;
    height: 18px;
    border-width: 2px;
}

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--gray-400);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-state .empty-text {
    font-size: 0.95rem;
    color: var(--gray-500);
}

/* 提示消息 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    padding: 14px 20px;
    border-radius: var(--radius);
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
    max-width: 400px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); color: var(--gray-800); }
.toast-info { background: var(--primary); }

/* 进度条 */
.progress {
    height: 10px;
    background: var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease;
}

.progress-bar.primary { background: var(--primary); }
.progress-bar.success { background: var(--success); }
.progress-bar.warning { background: var(--warning); }
.progress-bar.danger { background: var(--danger); }

/* 状态指示灯 */
.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 6px rgba(28,200,138,0.5); }
.status-dot.offline { background: var(--gray-400); }
.status-dot.error { background: var(--danger); box-shadow: 0 0 6px rgba(231,74,59,0.5); }

/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.w-full { width: 100%; }

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }
    .sidebar .logo-text,
    .sidebar .nav-item .nav-label,
    .sidebar .nav-section {
        opacity: 0;
    }
    .sidebar .nav-item {
        justify-content: center;
        padding: 11px 0;
    }
    .sidebar .nav-item .nav-icon {
        margin-right: 0;
    }
    .main-content {
        margin-left: var(--sidebar-collapsed-width);
    }
    .stat-cards {
        grid-template-columns: 1fr;
    }
    .search-bar {
        flex-direction: column;
    }
    .search-bar .search-input {
        max-width: 100%;
    }
    .page-content {
        padding: 16px;
    }
    .modal {
        width: 95%;
        max-width: 95%;
    }
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}