/* ============================================================
   安然云防火墙 — 前台 V2 全新风格
   主题：深色侧边栏 + 靛蓝紫渐变主色 + 精致浅色内容区（现代 SaaS 风）
   ============================================================ */
:root {
    --unified-primary: #6366f1;
    --unified-primary-dark: #4f46e5;
    --unified-primary-light: #818cf8;
    --unified-secondary: #8b5cf6;
    --unified-accent: #6366f1;
    --unified-pink: #ec4899;
    --unified-success: #22c55e;
    --unified-warning: #f59e0b;
    --unified-danger: #ef4444;
    --unified-info: #3b82f6;
    --unified-dark: #0f172a;
    --unified-gray: #64748b;
    --unified-light-gray: #e2e8f0;
    --unified-white: #ffffff;
    --unified-black: #000000;
    --unified-bg: #f1f5f9;
    --unified-surface: #ffffff;
    --unified-surface-2: #f8fafc;
    --unified-border: #e2e8f0;
    --unified-border-strong: #cbd5e1;
    --unified-sidebar: #ffffff;
    --unified-sidebar-width: 230px;
    --unified-topbar-h: 60px;
    --unified-tag-orange-bg: #fffbeb;
    --unified-tag-orange-text: #d97706;
    --unified-tag-orange-border: #fde68a;
    --unified-tag-blue-bg: #eff6ff;
    --unified-tag-blue-text: #2563eb;
    --unified-tag-blue-border: #bfdbfe;
    --unified-tag-green-bg: #f0fdf4;
    --unified-tag-green-text: #16a34a;
    --unified-tag-green-border: #bbf7d0;
    --unified-gradient-primary: #6366f1;
    --unified-gradient-accent: #8b5cf6;
    --unified-gradient-success: #22c55e;
    --unified-gradient-warning: #f59e0b;
    --unified-gradient-danger: #ef4444;
    --unified-gradient-info: #3b82f6;
    --unified-gradient-dark: #334155;
    --unified-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --unified-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --unified-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --unified-shadow-lg: 0 10px 24px rgba(15, 23, 42, 0.12);
    --unified-shadow-xl: 0 20px 40px rgba(15, 23, 42, 0.16);
    --unified-shadow-2xl: 0 28px 56px rgba(15, 23, 42, 0.2);
    --unified-shadow-glow: 0 0 0 4px rgba(99, 102, 241, 0.15);
    --unified-radius-sm: 6px;
    --unified-radius: 10px;
    --unified-radius-md: 12px;
    --unified-radius-lg: 14px;
    --unified-radius-xl: 16px;
    --unified-radius-2xl: 20px;
    --unified-radius-full: 9999px;
    --unified-transition: all .2s ease;
    --unified-transition-fast: all .12s ease;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--unified-dark);
    line-height: 1.6;
    font-size: 15px;
    min-height: 100vh;
    background: var(--unified-bg);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--unified-primary); text-decoration: none; }
a:hover { color: var(--unified-primary-dark); }
h1, h2, h3, h4, h5, h6 { color: var(--unified-dark); font-weight: 600; line-height: 1.35; }
.text-muted { color: var(--unified-gray) !important; }
code, pre { background: #eef2ff; color: #4338ca; border-radius: 6px; padding: 1px 6px; font-size: 12px; }

/* ========== 壳层：白色侧栏 ========== */
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
    position: fixed; left: 0; top: 0; bottom: 0;
    width: var(--unified-sidebar-width);
    background: var(--unified-sidebar);
    z-index: 1040;
    display: flex; flex-direction: column;
    transition: transform .25s ease;
    border-right: 1px solid var(--unified-border);
    box-shadow: 1px 0 8px rgba(15, 23, 42, 0.03);
}
.app-sidebar::before { display: none; }
.app-sidebar-brand {
    height: 60px; padding: 0 18px;
    display: flex; align-items: center; gap: 10px;
    border-bottom: 1px solid var(--unified-border);
    text-decoration: none; color: var(--unified-dark); flex-shrink: 0;
}
.app-sidebar-brand .brand-mark {
    width: 34px; height: 34px; border-radius: 9px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 17px; flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.35);
}
.app-sidebar-brand .brand-text { display: flex; flex-direction: column; min-width: 0; }
.app-sidebar-brand .brand-name { font-weight: 600; font-size: 15px; line-height: 1.2; color: var(--unified-dark); }
.app-sidebar-brand .brand-sub { display: none; }

.app-sidebar-nav {
    flex: 1; overflow-y: auto; padding: 10px 10px 16px;
    display: flex; flex-direction: column; gap: 2px;
}
.app-nav-label {
    font-size: 11px; color: #94a3b8;
    padding: 14px 12px 6px; font-weight: 600;
    letter-spacing: .06em; text-transform: uppercase;
}
.app-nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; color: #475569;
    border-radius: 9px; font-weight: 400; font-size: 14px;
    transition: background .15s, color .15s;
    border: none; background: transparent; width: 100%; text-align: left;
    text-decoration: none; cursor: pointer;
}
.app-nav-link i { width: 18px; text-align: center; font-size: 15px; flex-shrink: 0; }
.app-nav-link:hover { color: var(--unified-primary); background: #eef2ff; }
.app-nav-link.active {
    color: #fff; background: linear-gradient(135deg, #6366f1, #8b5cf6);
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}
.app-nav-link .badge { margin-left: auto; font-size: 11px; }
.app-nav-group { margin-bottom: 0; }
.app-nav-sub {
    display: none; flex-direction: column; gap: 1px;
    padding: 0 0 4px 12px; margin-left: 18px;
    border-left: 1px solid var(--unified-border);
}
.app-nav-group.open .app-nav-sub,
.app-nav-group.has-active .app-nav-sub { display: flex; }
.app-nav-sub .app-nav-link { padding: 7px 12px; font-size: 13px; }
.app-nav-toggle .chevron { margin-left: auto; font-size: 12px; color: #94a3b8; transition: transform .2s; }
.app-nav-group.open .app-nav-toggle .chevron { transform: rotate(90deg); }

.app-sidebar-foot {
    padding: 12px; border-top: 1px solid var(--unified-border); flex-shrink: 0;
}
.app-user-chip {
    display: flex; align-items: center; gap: 10px;
    padding: 8px; border-radius: 10px; background: var(--unified-surface-2);
}
.app-user-avatar {
    width: 34px; height: 34px; border-radius: 9px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; font-weight: 600; font-size: 13px;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.app-user-meta { min-width: 0; flex: 1; }
.app-user-meta .name {
    color: var(--unified-dark); font-weight: 500; font-size: 13px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.app-user-meta .role { color: #94a3b8; font-size: 12px; }
.app-user-actions { display: flex; gap: 6px; margin-top: 8px; }
.app-user-actions a, .app-user-actions button {
    flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 4px;
    padding: 5px 8px; border-radius: 7px; font-size: 12px; font-weight: 400;
    color: #64748b; background: transparent; border: 1px solid var(--unified-border-strong);
    text-decoration: none; cursor: pointer;
}
.app-user-actions a:hover, .app-user-actions button:hover {
    color: var(--unified-primary); border-color: var(--unified-primary); background: #eef2ff;
}

.app-main {
    flex: 1; margin-left: var(--unified-sidebar-width);
    min-width: 0; display: flex; flex-direction: column; min-height: 100vh;
}
.app-topbar {
    height: var(--unified-topbar-h);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--unified-border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px; gap: 12px;
    position: sticky; top: 0; z-index: 1030;
}
.app-topbar-left { display: flex; align-items: center; gap: 12px; }
.app-menu-btn {
    display: none; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 9px;
    border: 1px solid var(--unified-border-strong); background: #fff;
    color: var(--unified-gray); cursor: pointer; font-size: 16px;
}
.app-topbar-crumb { font-size: 14px; color: var(--unified-gray); }
.app-topbar-crumb strong { color: var(--unified-dark); font-weight: 600; }
.app-topbar-right { display: flex; align-items: center; gap: 10px; }
.app-status-pill {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 3px 12px; border-radius: 9999px;
    background: #f0fdf4; color: #16a34a;
    border: 1px solid #bbf7d0;
    font-size: 12px; font-weight: 500;
}
.app-status-pill .dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
    animation: unifiedPulse 2s infinite;
}

.app-content { padding: 24px 28px 36px; flex: 1; }

.app-sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(15, 23, 42, 0.5); z-index: 1035;
    backdrop-filter: blur(2px);
}
.app-sidebar-overlay.show { display: block; }

@media (max-width: 992px) {
    .app-sidebar { transform: translateX(-100%); }
    .app-sidebar.show { transform: translateX(0); }
    .app-main { margin-left: 0; }
    .app-menu-btn { display: flex; }
}

body:has(.app-shell) > .unified-navbar { display: none !important; }

/* 旧顶栏兼容 → 白色侧栏 */
.unified-navbar {
    position: fixed; left: 0; top: 0; bottom: 0; width: var(--unified-sidebar-width);
    background: var(--unified-sidebar) !important; border: none !important;
    box-shadow: none !important; padding: 0 !important;
    border-right: 1px solid var(--unified-border);
    display: flex; flex-direction: column; z-index: 1040; overflow-y: auto;
}
.unified-navbar .container-fluid,
.unified-navbar .unified-container {
    flex-direction: column !important; align-items: stretch !important;
    height: 100%; max-width: none !important; padding: 0 !important; margin: 0 !important;
    display: flex !important;
}
.unified-navbar-brand {
    height: 60px; padding: 0 18px; color: var(--unified-dark) !important;
    font-weight: 600; border-bottom: 1px solid var(--unified-border);
}
.unified-navbar-brand i {
    background: linear-gradient(135deg, #6366f1, #8b5cf6) !important; box-shadow: none !important;
    border-radius: 9px !important; width: 34px; height: 34px;
}
.unified-navbar-title {
    background: none !important; -webkit-text-fill-color: var(--unified-dark) !important;
    color: var(--unified-dark) !important; font-weight: 600;
}
.unified-navbar-toggler { display: none !important; }
.unified-navbar-collapse {
    display: flex !important; flex-direction: column !important;
    flex: 1; padding: 10px; height: auto !important;
}
.unified-navbar-nav {
    flex-direction: column !important; width: 100%; gap: 2px !important;
    align-items: stretch !important;
}
.unified-navbar-nav.me-auto { flex: 1; }
.unified-navbar-nav .nav-link {
    color: #475569 !important; padding: 9px 12px !important;
    border-radius: 9px; font-weight: 400;
}
.unified-navbar-nav .nav-link:hover { color: var(--unified-primary) !important; background: #eef2ff !important; }
.unified-navbar-nav .nav-link.active {
    color: #fff !important; background: linear-gradient(135deg, #6366f1, #8b5cf6) !important;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35) !important;
}
.unified-navbar-nav .dropdown-menu {
    position: static !important; transform: none !important;
    background: transparent !important; border: none !important;
    box-shadow: none !important; padding: 0 0 0 12px !important; margin: 0 !important; width: 100%;
}
.unified-navbar-nav .dropdown-item { color: #475569 !important; border-radius: 9px; font-size: 13px; }
.unified-navbar-nav .dropdown-item:hover { background: #eef2ff !important; color: var(--unified-primary) !important; transform: none; }
.unified-navbar-nav .dropdown-item.active { background: linear-gradient(135deg, #6366f1, #8b5cf6) !important; color: #fff !important; }
body:not(:has(.app-shell)) .unified-container {
    margin-left: var(--unified-sidebar-width);
    max-width: none; padding: 24px 28px 36px;
}
@media (max-width: 992px) {
    body:not(:has(.app-shell)) .unified-navbar { transform: translateX(-100%); }
    body:not(:has(.app-shell)) .unified-navbar.show { transform: translateX(0); }
    body:not(:has(.app-shell)) .unified-container { margin-left: 0; }
    .unified-navbar-toggler {
        display: flex !important; position: fixed; top: 12px; left: 12px; z-index: 1050;
        background: #fff !important; color: #6366f1 !important; border: 1px solid var(--unified-border-strong) !important;
    }
}

/* ========== 页面头 ========== */
.unified-page-header {
    background: transparent;
    color: var(--unified-dark);
    border-radius: 0;
    margin-bottom: 20px;
    position: relative; overflow: visible;
    box-shadow: none; border: none; border-left: none;
    padding: 0 0 4px;
}
.unified-page-header::before,
.unified-page-header::after { display: none; }
.unified-page-title {
    font-size: 22px; font-weight: 600; margin: 0;
    display: flex; align-items: center; gap: 8px;
    color: var(--unified-dark);
}
.unified-page-title i { color: var(--unified-primary); font-size: 22px; }
.unified-page-subtitle {
    font-size: 13px; margin: 6px 0 0; font-weight: 400;
    color: var(--unified-gray);
}

/* ========== 卡片 ========== */
.unified-card {
    background: #fff;
    border-radius: var(--unified-radius-lg);
    box-shadow: var(--unified-shadow);
    border: 1px solid var(--unified-border);
    overflow: hidden;
    transition: box-shadow .2s ease, transform .2s ease;
    margin-bottom: 20px;
}
.unified-card:hover { box-shadow: var(--unified-shadow-md); transform: none; border-color: var(--unified-border); }
.unified-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--unified-border);
    background: #fff;
}
.unified-card-title {
    font-size: 15px; font-weight: 600; margin: 0;
    display: flex; align-items: center; gap: 8px;
}
.unified-card-title i {
    width: auto; height: auto; border-radius: 0;
    background: transparent; color: var(--unified-primary); font-size: 16px;
}
.unified-card-body { padding: 20px; }

/* ========== 统计 ========== */
.unified-stats-card {
    border-radius: var(--unified-radius-lg); box-shadow: var(--unified-shadow);
    border: 1px solid var(--unified-border); overflow: hidden;
    transition: box-shadow .2s ease, transform .2s ease; height: 100%;
    background: #fff; position: relative;
}
.unified-stats-card::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
    background: linear-gradient(180deg, #6366f1, #8b5cf6);
}
.unified-stats-card:hover { transform: translateY(-2px); box-shadow: var(--unified-shadow-md); border-color: var(--unified-border); }
.unified-stats-card.primary::before { background: linear-gradient(180deg, #6366f1, #8b5cf6); }
.unified-stats-card.success::before { background: linear-gradient(180deg, #22c55e, #16a34a); }
.unified-stats-card.warning::before { background: linear-gradient(180deg, #f59e0b, #d97706); }
.unified-stats-card.info::before    { background: linear-gradient(180deg, #3b82f6, #2563eb); }
.unified-stats-card.danger::before  { background: linear-gradient(180deg, #ef4444, #dc2626); }
.unified-stats-card.dark::before    { background: linear-gradient(180deg, #475569, #334155); }
.unified-stats-card .card-body { padding: 18px 20px; }
.unified-stats-card h6 {
    font-size: 13px; font-weight: 500; margin-bottom: 8px;
    text-transform: none; letter-spacing: 0; color: var(--unified-gray);
}
.unified-stats-card h2 {
    font-size: 30px; font-weight: 700; margin: 0; letter-spacing: 0;
    color: var(--unified-dark); font-variant-numeric: tabular-nums;
}
.unified-stats-card.primary h2,
.unified-stats-card.success h2,
.unified-stats-card.warning h2,
.unified-stats-card.info h2,
.unified-stats-card.danger h2,
.unified-stats-card.dark h2 { color: var(--unified-dark); }
.unified-stats-card .bi { color: rgba(100, 116, 139, 0.18) !important; }

/* ========== 按钮：渐变主色 ========== */
.unified-btn {
    border-radius: 10px; padding: 7px 16px; height: 38px;
    font-weight: 500; transition: all .2s;
    border: 1px solid transparent; font-size: 14px;
    display: inline-flex; align-items: center; gap: 6px; justify-content: center;
    letter-spacing: 0; cursor: pointer; line-height: 1.5;
}
.unified-btn:active { transform: scale(.97); }
.unified-btn-primary {
    background: linear-gradient(135deg, #6366f1, #4f46e5); color: #fff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}
.unified-btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5, #4338ca); color: #fff;
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4); transform: translateY(-1px);
}
.unified-btn-success { background: linear-gradient(135deg, #22c55e, #16a34a); color: #fff; }
.unified-btn-success:hover { background: linear-gradient(135deg, #16a34a, #15803d); color: #fff; transform: translateY(-1px); }
.unified-btn-warning { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; }
.unified-btn-warning:hover { background: linear-gradient(135deg, #d97706, #b45309); color: #fff; transform: translateY(-1px); }
.unified-btn-danger { background: linear-gradient(135deg, #ef4444, #dc2626); color: #fff; }
.unified-btn-danger:hover { background: linear-gradient(135deg, #dc2626, #b91c1c); color: #fff; transform: translateY(-1px); }
.unified-btn-info { background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; }
.unified-btn-info:hover { background: linear-gradient(135deg, #2563eb, #1d4ed8); color: #fff; transform: translateY(-1px); }
.unified-btn-light { background: #fff; color: var(--unified-dark); border: 1px solid var(--unified-border-strong); }
.unified-btn-light:hover { color: var(--unified-primary); border-color: var(--unified-primary); background: #fff; }
.unified-btn-outline-primary { background: #fff; color: var(--unified-primary); border: 1px solid var(--unified-primary); }
.unified-btn-outline-primary:hover { background: #eef2ff; color: var(--unified-primary-dark); border-color: var(--unified-primary-dark); }
.unified-btn-outline-danger { background: #fff; color: var(--unified-danger); border: 1px solid var(--unified-danger); }
.unified-btn-outline-danger:hover { background: #fef2f2; color: #dc2626; }
.unified-btn-sm { padding: 0 12px; height: 30px; font-size: 13px; border-radius: 8px; }
.unified-btn-lg { padding: 9px 20px; height: 44px; font-size: 15px; border-radius: 12px; }
.unified-btn-block { width: 100%; }
.unified-btn:disabled { opacity: .6; pointer-events: none; }

/* ========== 表单 ========== */
.unified-form-group { margin-bottom: 18px; }
.unified-form-label { font-weight: 500; font-size: 14px; margin-bottom: 6px; color: var(--unified-dark); display: block; }
.unified-form-control {
    width: 100%; padding: 7px 13px; height: 38px; font-size: 14px;
    border: 1px solid var(--unified-border-strong); border-radius: 10px;
    background: #fff; color: var(--unified-dark); transition: all .2s;
}
.unified-form-control:focus {
    outline: none; border-color: var(--unified-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.14);
}
.unified-form-control::placeholder { color: #94a3b8; }
.unified-input-group { display: flex; }
.unified-input-group .unified-form-control { border-radius: 10px 0 0 10px; }
.unified-input-group .unified-btn { border-radius: 0 10px 10px 0; height: 38px; }
.unified-select {
    width: 100%; padding: 7px 13px; height: 38px;
    border: 1px solid var(--unified-border-strong); border-radius: 10px;
    background: #fff; color: var(--unified-dark); font-size: 14px;
}
.unified-select:focus {
    outline: none; border-color: var(--unified-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.14);
}
.unified-textarea { min-height: 84px; height: auto; padding: 10px 13px; resize: vertical; }
.unified-form-hint { font-size: 12px; color: var(--unified-gray); margin-top: 4px; }
.unified-form-check { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-weight: 400; }

/* ========== 表格 ========== */
.unified-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; }
.unified-table thead th {
    padding: 12px 16px; text-align: left; font-weight: 600; font-size: 12px;
    text-transform: uppercase; letter-spacing: .04em;
    color: var(--unified-gray); background: var(--unified-surface-2);
    border-bottom: 1px solid var(--unified-border);
    white-space: nowrap;
}
.unified-table tbody td {
    padding: 13px 16px; border-bottom: 1px solid var(--unified-border);
    vertical-align: middle; color: var(--unified-dark);
}
.unified-table tbody tr { transition: background .15s; }
.unified-table tbody tr:hover { background: var(--unified-surface-2); }
.unified-table tbody tr:last-child td { border-bottom: none; }
.unified-table .text-end { text-align: right; }

/* ========== 徽章 ========== */
.unified-badge {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 4px 10px; font-size: 12px; font-weight: 500;
    border-radius: 9999px; border: 1px solid transparent; line-height: 1.4;
}
.unified-badge i { font-size: 12px; }
.unified-badge-primary { background: #eef2ff; color: #4338ca; border-color: #c7d2fe; }
.unified-badge-success { background: #f0fdf4; color: #16a34a; border-color: #bbf7d0; }
.unified-badge-warning { background: #fffbeb; color: #d97706; border-color: #fde68a; }
.unified-badge-danger  { background: #fef2f2; color: #dc2626; border-color: #fecaca; }
.unified-badge-info    { background: #eff6ff; color: #2563eb; border-color: #bfdbfe; }
.unified-badge-dark    { background: #f1f5f9; color: #475569; border-color: #e2e8f0; }
.unified-badge-secondary { background: #f8fafc; color: #64748b; border-color: #e2e8f0; }
.unified-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

/* 兼容旧 badge 类 */
.badge.bg-primary { background: #eef2ff !important; color: #4338ca !important; }
.badge.bg-success { background: #f0fdf4 !important; color: #16a34a !important; }
.badge.bg-warning { background: #fffbeb !important; color: #d97706 !important; }
.badge.bg-danger  { background: #fef2f2 !important; color: #dc2626 !important; }
.badge.bg-info    { background: #eff6ff !important; color: #2563eb !important; }
.badge.bg-dark    { background: #f1f5f9 !important; color: #475569 !important; }
.badge.bg-secondary { background: #f8fafc !important; color: #64748b !important; }

/* ========== 提示 ========== */
.unified-alert {
    padding: 12px 16px; border-radius: 12px; border: 1px solid transparent;
    margin-bottom: 16px; font-size: 14px; display: flex; align-items: flex-start; gap: 8px;
}
.unified-alert i { font-size: 16px; margin-top: 1px; }
.unified-alert-danger  { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.unified-alert-success { background: #f0fdf4; color: #15803d; border-color: #bbf7d0; }
.unified-alert-warning { background: #fffbeb; color: #b45309; border-color: #fde68a; }
.unified-alert-info    { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }
.unified-alert-primary { background: #eef2ff; color: #4338ca; border-color: #c7d2fe; }

/* 兼容 Bootstrap alert */
.alert-danger  { background: #fef2f2; color: #b91c1c; border-color: #fecaca; border-radius: 12px; }
.alert-success { background: #f0fdf4; color: #15803d; border-color: #bbf7d0; border-radius: 12px; }
.alert-warning { background: #fffbeb; color: #b45309; border-color: #fde68a; border-radius: 12px; }
.alert-info    { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; border-radius: 12px; }

/* ========== 分页 ========== */
.unified-pagination { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; justify-content: center; }
.unified-pagination a, .unified-pagination span {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 34px; height: 34px; padding: 0 8px;
    border-radius: 8px; font-size: 13px; font-weight: 500;
    border: 1px solid var(--unified-border-strong); background: #fff; color: var(--unified-dark);
    text-decoration: none; transition: all .15s;
}
.unified-pagination a:hover { border-color: var(--unified-primary); color: var(--unified-primary); }
.unified-pagination .active {
    background: linear-gradient(135deg, #6366f1, #4f46e5); color: #fff;
    border-color: transparent; box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}
.unified-pagination .disabled { opacity: .5; pointer-events: none; }

/* ========== 时间线 ========== */
.unified-timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.unified-timeline::before {
    content: ''; position: absolute; left: 9px; top: 4px; bottom: 4px; width: 2px;
    background: var(--unified-border);
}
.unified-timeline-item { position: relative; padding: 0 0 18px 32px; }
.unified-timeline-item::before {
    content: ''; position: absolute; left: 4px; top: 5px;
    width: 12px; height: 12px; border-radius: 50%;
    background: #fff; border: 3px solid var(--unified-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.unified-timeline-item:last-child { padding-bottom: 0; }
.unified-timeline-time { font-size: 12px; color: var(--unified-gray); display: block; margin-bottom: 2px; }
.unified-timeline-text { font-size: 14px; color: var(--unified-dark); }

/* ========== 模态框 ========== */
.unified-modal { display: none; position: fixed; inset: 0; z-index: 1055; }
.unified-modal.show { display: block; }
.unified-modal-backdrop {
    position: absolute; inset: 0; background: rgba(15, 23, 42, 0.5); backdrop-filter: blur(2px);
}
.unified-modal-dialog {
    position: relative; margin: 6vh auto 0; max-width: 500px; width: calc(100% - 32px);
    background: #fff; border-radius: 16px; box-shadow: var(--unified-shadow-xl);
    overflow: hidden; animation: unifiedModalIn .25s ease;
}
.unified-modal-header { padding: 16px 20px; border-bottom: 1px solid var(--unified-border); display: flex; align-items: center; justify-content: space-between; }
.unified-modal-title { font-size: 16px; font-weight: 600; margin: 0; }
.unified-modal-close { border: none; background: none; font-size: 20px; color: var(--unified-gray); cursor: pointer; line-height: 1; }
.unified-modal-body { padding: 20px; }
.unified-modal-footer { padding: 14px 20px; border-top: 1px solid var(--unified-border); display: flex; justify-content: flex-end; gap: 8px; }

/* ========== 工具类 ========== */
.unified-text-primary { color: var(--unified-primary) !important; }
.unified-text-success { color: var(--unified-success) !important; }
.unified-text-warning { color: var(--unified-warning) !important; }
.unified-text-danger  { color: var(--unified-danger) !important; }
.unified-text-info    { color: var(--unified-info) !important; }
.unified-text-gray    { color: var(--unified-gray) !important; }
.unified-muted { color: var(--unified-gray) !important; }
.unified-fs-sm { font-size: 13px; }
.unified-fs-lg { font-size: 16px; }
.unified-fw-500 { font-weight: 500; }
.unified-fw-600 { font-weight: 600; }
.unified-fw-700 { font-weight: 700; }
.unified-mt-0 { margin-top: 0 !important; }
.unified-mt-1 { margin-top: 4px !important; }
.unified-mt-2 { margin-top: 8px !important; }
.unified-mt-3 { margin-top: 16px !important; }
.unified-mt-4 { margin-top: 24px !important; }
.unified-mt-5 { margin-top: 32px !important; }
.unified-mb-0 { margin-bottom: 0 !important; }
.unified-mb-1 { margin-bottom: 4px !important; }
.unified-mb-2 { margin-bottom: 8px !important; }
.unified-mb-3 { margin-bottom: 16px !important; }
.unified-mb-4 { margin-bottom: 24px !important; }
.unified-d-flex { display: flex; }
.unified-align-center { align-items: center; }
.unified-justify-between { justify-content: space-between; }
.unified-gap-1 { gap: 4px; }
.unified-gap-2 { gap: 8px; }
.unified-gap-3 { gap: 16px; }
.unified-w-100 { width: 100%; }
.unified-empty {
    padding: 40px 20px; text-align: center; color: var(--unified-gray); font-size: 14px;
}
.unified-empty i { font-size: 40px; display: block; margin-bottom: 10px; opacity: .4; }
.unified-divider { height: 1px; background: var(--unified-border); margin: 16px 0; }
.unified-link { color: var(--unified-primary); cursor: pointer; }
.unified-link:hover { color: var(--unified-primary-dark); text-decoration: underline; }

/* ========== 动画 ========== */
.unified-fade-in-up { animation: unifiedFadeInUp .4s ease both; }
.unified-fade-in { animation: unifiedFadeIn .3s ease both; }
@keyframes unifiedFadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes unifiedFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes unifiedPulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18); }
    50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.08); }
}
@keyframes unifiedModalIn {
    from { opacity: 0; transform: translateY(-16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== 登录 / 注册页 ========== */
.auth-shell { min-height: 100vh; display: flex; background: var(--unified-bg); }
.auth-visual {
    flex: 1.1; position: relative; overflow: hidden;
    background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 55%, #f5f3ff 100%);
    color: var(--unified-dark); display: flex; flex-direction: column; justify-content: center;
    padding: 48px 56px;
}
.auth-visual::before {
    content: ''; position: absolute; width: 480px; height: 480px; border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.2), transparent 70%);
    top: -120px; right: -120px;
}
.auth-visual::after {
    content: ''; position: absolute; width: 360px; height: 360px; border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.18), transparent 70%);
    bottom: -100px; left: -80px;
}
.auth-visual-brand { position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.auth-visual-brand .brand-mark {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    display: flex; align-items: center; justify-content: center; font-size: 22px;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}
.auth-visual-brand .brand-name { font-size: 20px; font-weight: 700; color: var(--unified-dark); }
.auth-visual-brand .brand-sub { font-size: 13px; color: #64748b; }
.auth-visual-title {
    position: relative; z-index: 1; font-size: 32px; font-weight: 700; line-height: 1.3;
    color: var(--unified-dark); margin-bottom: 16px;
}
.auth-visual-desc { position: relative; z-index: 1; font-size: 15px; color: #64748b; line-height: 1.7; max-width: 420px; }
.auth-visual-foot {
    position: relative; z-index: 1; margin-top: 40px;
    display: flex; align-items: center; gap: 16px; color: #94a3b8; font-size: 12px;
}

.auth-panel {
    flex: 1; display: flex; align-items: center; justify-content: center;
    padding: 40px 24px;
}
.auth-card {
    width: 100%; max-width: 400px;
    background: #fff; border-radius: 20px; box-shadow: var(--unified-shadow-lg);
    border: 1px solid var(--unified-border); padding: 32px;
}
.auth-card .auth-title { font-size: 22px; font-weight: 700; color: var(--unified-dark); margin-bottom: 6px; }
.auth-card .auth-subtitle { font-size: 13px; color: var(--unified-gray); margin-bottom: 24px; }

/* 兼容旧登录类 */
.login-background {
    background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 55%, #f5f3ff 100%) !important;
}
.login-card {
    border-radius: 20px; box-shadow: var(--unified-shadow-lg); border: 1px solid var(--unified-border);
}

@media (max-width: 992px) {
    .auth-visual { display: none; }
    .auth-panel { padding: 24px 16px; }
}

/* ========== Bootstrap 覆盖（浅色卡片体系） ========== */
.card {
    border: 1px solid var(--unified-border); border-radius: var(--unified-radius-lg);
    box-shadow: var(--unified-shadow);
}
.card-header { background: #fff; border-bottom: 1px solid var(--unified-border); font-weight: 600; }
.card-body { color: var(--unified-dark); }
.btn { border-radius: 10px; font-weight: 500; }
.btn-primary { background: linear-gradient(135deg, #6366f1, #4f46e5); border: none; }
.btn-primary:hover { background: linear-gradient(135deg, #4f46e5, #4338ca); }
.btn-success { background: linear-gradient(135deg, #22c55e, #16a34a); border: none; }
.btn-danger { background: linear-gradient(135deg, #ef4444, #dc2626); border: none; }
.btn-warning { background: linear-gradient(135deg, #f59e0b, #d97706); border: none; }
.btn-info { background: linear-gradient(135deg, #3b82f6, #2563eb); border: none; }
.btn-outline-primary { color: var(--unified-primary); border-color: var(--unified-primary); }
.btn-outline-primary:hover { background: #eef2ff; color: var(--unified-primary-dark); border-color: var(--unified-primary-dark); }
.form-control, .form-select {
    border: 1px solid var(--unified-border-strong); border-radius: 10px; font-size: 14px;
}
.form-control:focus, .form-select:focus {
    border-color: var(--unified-primary); box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.14);
}
.table { --bs-table-bg: transparent; border-color: var(--unified-border); }
.table thead th { background: var(--unified-surface-2); color: var(--unified-gray); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--unified-border); }
.nav-pills .nav-link.active { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.progress { background: var(--unified-border); border-radius: 9999px; }
.progress-bar { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.dropdown-menu { border: 1px solid var(--unified-border); border-radius: 12px; box-shadow: var(--unified-shadow-lg); }
.list-group-item { border-color: var(--unified-border); }
.text-primary { color: var(--unified-primary) !important; }
.text-success { color: var(--unified-success) !important; }
.text-danger { color: var(--unified-danger) !important; }
.text-warning { color: var(--unified-warning) !important; }
.text-info { color: var(--unified-info) !important; }
.pagination .page-link { color: var(--unified-dark); border-color: var(--unified-border-strong); border-radius: 8px; margin: 0 2px; }
.pagination .page-item.active .page-link { background: linear-gradient(135deg, #6366f1, #4f46e5); border-color: transparent; color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 9999px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; background-clip: content-box; }
.app-sidebar-nav::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.4); background-clip: content-box; }