/* ============================================================
   RBAC 权限管理系统 — 后台全局样式
   ============================================================ */

/* ---------- 主题变量 ---------- */
:root {
  --primary: #409eff;
  --primary-dark: #337ecc;
  --primary-light: #ecf5ff;
  --success: #67c23a;
  --warning: #e6a23c;
  --danger: #f56c6c;
  --info: #909399;

  --sidebar-bg: #1f2d3d;          /* 侧边栏底色 */
  --sidebar-hover: #2b3a4d;
  --sidebar-active-bg: #263445;
  --sidebar-text: #a7b1c2;
  --sidebar-active-text: #ffffff;

  --header-height: 56px;
  --sidebar-width: 220px;
  --sidebar-collapsed-width: 64px;

  --content-bg: #f2f3f7;
  --card-bg: #ffffff;
  --card-radius: 8px;

  --text-main: #303133;
  --text-regular: #606266;
  --text-secondary: #909399;
  --border-color: #e4e7ed;
  --border-light: #ebeef5;

  --shadow-sm: 0 1px 4px rgba(0, 21, 41, 0.08);
  --shadow-md: 0 2px 12px rgba(0, 21, 41, 0.1);

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: var(--font-family);
  font-size: 14px;
  color: var(--text-main);
  background: var(--content-bg);
  -webkit-font-smoothing: antialiased;
}

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

ul, ol { list-style: none; }

img { max-width: 100%; }

svg { display: inline-block; vertical-align: middle; }

.inline-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

button { font-family: inherit; cursor: pointer; }

input, select, textarea { font-family: inherit; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background: #c0c4cc; border-radius: 3px; }
::-webkit-scrollbar-track { background: transparent; }

/* ============================================================
   整体布局
   ============================================================ */
.layout {
  display: flex;
  min-height: 100vh;
}

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.content {
  flex: 1;
  padding: 16px;
  background: var(--content-bg);
}

.content-inner {
  max-width: 1440px;
  margin: 0 auto;
}

/* ============================================================
   侧边导航栏
   ============================================================ */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width 0.25s ease;
  z-index: 100;
}

.sidebar-logo {
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  background: rgba(0, 0, 0, 0.15);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  white-space: nowrap;
  overflow: hidden;
}

.logo-icon { width: 28px; height: 28px; flex-shrink: 0; color: var(--primary); }
.logo-icon svg { width: 100%; height: 100%; }

.sidebar-menu {
  padding: 8px 0;
  flex: 1;
}

.menu-item { margin: 2px 0; }

.menu-link {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 44px;
  padding: 0 18px;
  color: var(--sidebar-text);
  font-size: 14px;
  white-space: nowrap;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.menu-link:hover { color: #fff; background: var(--sidebar-hover); }

.menu-link.active {
  color: var(--sidebar-active-text);
  background: var(--sidebar-active-bg);
  border-left-color: var(--primary);
}

.menu-icon { width: 18px; height: 18px; flex-shrink: 0; display: inline-flex; }
.menu-icon svg { width: 100%; height: 100%; }

.menu-text { flex: 1; overflow: hidden; text-overflow: ellipsis; }

.menu-group { margin: 2px 0; }

.menu-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 44px;
  padding: 0 18px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.menu-group-title:hover { color: #fff; background: var(--sidebar-hover); }

.menu-arrow {
  width: 14px; height: 14px;
  flex-shrink: 0;
  transition: transform 0.25s;
}

.menu-arrow svg { width: 100%; height: 100%; }

.menu-group.open > .menu-group-title .menu-arrow { transform: rotate(90deg); }

.menu-sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
  background: rgba(0, 0, 0, 0.15);
}

.menu-group.open > .menu-sub { max-height: 400px; }

.menu-sub-link {
  display: block;
  height: 40px;
  line-height: 40px;
  padding: 0 18px 0 48px;
  color: var(--sidebar-text);
  font-size: 13px;
  white-space: nowrap;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.menu-sub-link:hover { color: #fff; }

.menu-sub-link.active {
  color: #fff;
  border-left-color: var(--primary);
  background: rgba(64, 158, 255, 0.12);
}

/* 折叠状态 */
.sidebar-collapsed .sidebar { width: var(--sidebar-collapsed-width); }
.sidebar-collapsed .logo-text,
.sidebar-collapsed .menu-text,
.sidebar-collapsed .menu-arrow,
.sidebar-collapsed .menu-sub { display: none; }
.sidebar-collapsed .menu-link,
.sidebar-collapsed .menu-group-title { justify-content: center; padding: 0; }
.sidebar-collapsed .sidebar-logo { justify-content: center; padding: 0; }
.sidebar-collapsed .menu-link.active { border-left-color: transparent; }

/* ============================================================
   顶部工具栏
   ============================================================ */
.header {
  height: var(--header-height);
  background: #fff;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: var(--shadow-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.icon-btn {
  width: 34px; height: 34px;
  border: none;
  background: transparent;
  border-radius: 6px;
  color: var(--text-regular);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.icon-btn:hover { background: var(--primary-light); color: var(--primary); }

.icon-btn svg { width: 18px; height: 18px; }

.breadcrumb { font-size: 13px; color: var(--text-secondary); display: flex; align-items: center; }
.breadcrumb a { color: var(--text-secondary); display: inline-flex; align-items: center; gap: 4px; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb a svg { width: 13px; height: 13px; }
.breadcrumb .sep { margin: 0 6px; color: #c0c4cc; }
.breadcrumb .current { color: var(--text-main); }

.header-right { display: flex; align-items: center; gap: 16px; }

.user-box {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.2s;
}

.user-box:hover { background: #f5f7fa; }

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #66b1ff);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}

.user-name { font-size: 14px; color: var(--text-regular); }

.user-arrow { width: 12px; height: 12px; color: #c0c4cc; }
.user-arrow svg { width: 100%; height: 100%; }

.user-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 140px;
  background: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  padding: 6px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all 0.2s;
}

.user-box.open .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown li a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  color: var(--text-regular);
  font-size: 13px;
  transition: background 0.2s;
}

.user-dropdown li a:hover { background: #f5f7fa; color: var(--primary); }
.user-dropdown li a svg { width: 15px; height: 15px; }
.user-dropdown li.divider { height: 1px; margin: 5px 0; background: var(--border-light); }

/* ============================================================
   卡片
   ============================================================ */
.card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  margin-bottom: 16px;
}

.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title::before {
  content: "";
  width: 4px;
  height: 16px;
  background: var(--primary);
  border-radius: 2px;
}

.card-body { padding: 20px; }

/* ============================================================
   页面标题区
   ============================================================ */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title { font-size: 18px; font-weight: 600; }

.page-desc { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  white-space: nowrap;
  transition: all 0.2s;
  user-select: none;
}

.btn svg { width: 14px; height: 14px; }

.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(1.08); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.08); }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { filter: brightness(1.08); }

.btn-default { background: #fff; color: var(--text-regular); border-color: #dcdfe6; }
.btn-default:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-light); }

.btn-sm { height: 28px; padding: 0 10px; font-size: 13px; }
.btn-sm svg { width: 13px; height: 13px; }
.btn-block { width: 100%; }

.btn-link {
  background: none;
  border: none;
  padding: 0 4px;
  font-size: 13px;
  color: var(--primary);
  height: auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.btn-link:hover { color: var(--primary-dark); text-decoration: underline; }
.btn-link.danger { color: var(--danger); }
.btn-link.danger:hover { color: #d03050; }
.btn-link.warning { color: var(--warning); }
.btn-link svg { width: 13px; height: 13px; }

/* 列表操作列按钮（编辑/设置权限/删除）：比文字链接更大更醒目 */
.cell-operate .btn-sm { height: 28px; padding: 0 12px; font-size: 13px; border-radius: 4px; }
.cell-operate .btn-sm svg { width: 13px; height: 13px; }
.btn-op-edit {
  background: var(--primary-light);
  color: var(--primary);
  border-color: #a0cfff;
}
.btn-op-edit:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-op-danger {
  background: #fef0f0;
  color: var(--danger);
  border-color: #fbc4c4;
}
.btn-op-danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-op-warning {
  background: #fdf6ec;
  color: var(--warning);
  border-color: #f5dab1;
}
.btn-op-warning:hover { background: var(--warning); color: #fff; border-color: var(--warning); }

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

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th,
.table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}

.table th {
  background: #fafafa;
  color: var(--text-regular);
  font-weight: 600;
  font-size: 13px;
}

.table tbody tr { transition: background 0.15s; }
.table tbody tr:hover { background: #f5f7fa; }

.table .cell-operate { display: flex; align-items: center; gap: 6px; }

.table .tree-cell { display: flex; align-items: center; gap: 8px; }

.tree-indent { display: inline-block; width: 18px; }
.tree-indent.level-1 { width: 36px; }
.tree-indent.level-2 { width: 54px; }

.tree-switch {
  width: 18px; height: 18px;
  border: none;
  background: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: transform 0.2s;
  flex-shrink: 0;
  cursor: pointer;
}
.tree-switch svg { width: 12px; height: 12px; }
.tree-switch.open { transform: rotate(90deg); }
.tree-switch.leaf { visibility: hidden; }

.table-empty {
  text-align: center;
  padding: 40px 0;
  color: var(--text-secondary);
}

/* ============================================================
   徽章 / 状态标签
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  line-height: 1.6;
}

.badge-success { background: #f0f9eb; color: var(--success); }
.badge-danger { background: #fef0f0; color: var(--danger); }
.badge-warning { background: #fdf6ec; color: var(--warning); }
.badge-info { background: #f4f4f5; color: var(--info); }
.badge-primary { background: var(--primary-light); color: var(--primary); }

.type-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 3px;
  font-size: 12px;
  border: 1px solid;
}
.type-module { color: var(--primary); border-color: var(--primary); background: var(--primary-light); }
.type-menu { color: var(--success); border-color: #b3e19d; background: #f0f9eb; }
.type-action { color: var(--warning); border-color: #f3d19e; background: #fdf6ec; }

/* ============================================================
   表单
   ============================================================ */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 24px;
}

.form-grid .form-item.full { grid-column: 1 / -1; }

.form-item { margin-bottom: 20px; }

.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-regular);
}

.form-label .required { color: var(--danger); margin-right: 3px; }

.form-control {
  width: 100%;
  height: 36px;
  padding: 0 12px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  font-size: 14px;
  color: var(--text-main);
  background: #fff;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

textarea.form-control { height: auto; padding: 8px 12px; resize: vertical; }

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.15);
}

.form-control:disabled { background: #f5f7fa; color: #a8abb2; cursor: not-allowed; }

.form-help { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

.form-error { font-size: 12px; color: var(--danger); margin-top: 6px; display: none; }
.form-item.has-error .form-error { display: block; }
.form-item.has-error .form-control { border-color: var(--danger); }
.form-item.has-error .form-control:focus { box-shadow: 0 0 0 2px rgba(245, 108, 108, 0.15); }

.form-actions {
  display: flex;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.captcha-box { display: flex; gap: 10px; }
.captcha-box .form-control { flex: 1; }
.captcha-img {
  width: 110px; height: 36px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  font-size: 12px;
  color: var(--text-secondary);
  overflow: hidden;
  flex-shrink: 0;
}
.captcha-img:hover { border-color: var(--primary); }

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.toolbar .form-control { width: 220px; }
.toolbar .form-control.w-sm { width: 160px; }

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  padding: 14px 4px;
}

.pagination .page-info { font-size: 13px; color: var(--text-secondary); margin-right: 8px; }

.page-btn {
  min-width: 30px;
  height: 30px;
  padding: 0 6px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #fff;
  color: var(--text-regular);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.page-btn:hover { color: var(--primary); border-color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn.disabled { color: #c0c4cc; cursor: not-allowed; }
.page-btn.disabled:hover { border-color: #dcdfe6; color: #c0c4cc; }

/* ============================================================
   统计卡片（仪表盘）
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: #fff;
  border-radius: var(--card-radius);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.stat-icon {
  width: 52px; height: 52px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg { width: 26px; height: 26px; color: #fff; }

.stat-icon.blue { background: linear-gradient(135deg, #409eff, #79bbff); }
.stat-icon.green { background: linear-gradient(135deg, #67c23a, #95d475); }
.stat-icon.orange { background: linear-gradient(135deg, #e6a23c, #ebb563); }
.stat-icon.red { background: linear-gradient(135deg, #f56c6c, #f78989); }

.stat-info .stat-num { font-size: 26px; font-weight: 700; line-height: 1.2; }
.stat-info .stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.quick-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: #fff;
  transition: all 0.2s;
  color: var(--text-main);
}

.quick-item:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); color: var(--primary); }

.quick-icon {
  width: 42px; height: 42px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.quick-icon svg { width: 22px; height: 22px; }
.quick-icon.soft-blue { background: var(--primary-light); color: var(--primary); }
.quick-icon.soft-green { background: #f0f9eb; color: var(--success); }
.quick-icon.soft-orange { background: #fdf6ec; color: var(--warning); }
.quick-icon.soft-red { background: #fef0f0; color: var(--danger); }

.quick-item .quick-title { font-size: 14px; font-weight: 600; }
.quick-item .quick-desc { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ============================================================
   权限树（角色授权页）
   ============================================================ */
.permission-tree {
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 16px 20px;
  background: #fff;
  max-height: 480px;
  overflow-y: auto;
}

.ptree-root { padding: 0; }

.ptree-node { margin: 2px 0; }

.ptree-node > .ptree-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.ptree-node > .ptree-row:hover { background: #f5f7fa; }

.ptree-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  flex: 1;
  font-size: 14px;
}

.ptree-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }

.ptree-children { padding-left: 34px; border-left: 1px dashed var(--border-light); margin-left: 14px; }

.ptree-count { font-size: 12px; color: var(--text-secondary); margin-left: auto; }

.ptree-type { font-size: 11px; margin-left: 6px; }

/* ============================================================
   Alert 提示
   ============================================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
}

.alert svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 1px; }
.alert-warning { background: #fdf6ec; color: #b88230; border: 1px solid #f3d19e; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); border: 1px solid #b3d8ff; }
.alert-danger { background: #fef0f0; color: var(--danger); border: 1px solid #fbc4c4; }

/* ============================================================
   模态框
   ============================================================ */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}

.modal-mask.show { opacity: 1; visibility: visible; }

.modal {
  width: 420px;
  max-width: calc(100vw - 32px);
  background: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  transform: scale(0.9);
  transition: transform 0.2s;
  overflow: hidden;
}

.modal-mask.show .modal { transform: scale(1); }

.modal-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  font-size: 15px;
  font-weight: 600;
}

.modal-close { border: none; background: none; color: var(--text-secondary); font-size: 18px; line-height: 1; }
.modal-close:hover { color: var(--danger); }

.modal-body { padding: 20px; font-size: 14px; color: var(--text-regular); }

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-icon svg { width: 28px; height: 28px; }
.modal-icon.success { background: #f0f9eb; color: var(--success); }
.modal-icon.warning { background: #fdf6ec; color: var(--warning); }
.modal-icon.danger { background: #fef0f0; color: var(--danger); }

/* ============================================================
   Toast 轻提示
   ============================================================ */
.toast-wrap {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: 6px;
  padding: 10px 18px;
  box-shadow: var(--shadow-md);
  font-size: 14px;
  color: var(--text-main);
  border-left: 4px solid var(--primary);
  animation: toast-in 0.25s ease;
  max-width: 80vw;
}

.toast svg { width: 16px; height: 16px; flex-shrink: 0; }
.toast.success { border-left-color: var(--success); }
.toast.success svg { color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.error svg { color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.warning svg { color: var(--warning); }

.toast.out { animation: toast-out 0.25s ease forwards; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(-14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-14px); }
}

/* ============================================================
   登录页
   ============================================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1f2d3d 0%, #263445 45%, #2b4a6f 100%);
  position: relative;
  overflow: hidden;
  padding: 20px;
}

.login-page::before,
.login-page::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  opacity: 0.18;
}
.login-page::before {
  width: 420px; height: 420px;
  background: var(--primary);
  top: -140px; right: -100px;
}
.login-page::after {
  width: 320px; height: 320px;
  background: #79bbff;
  bottom: -120px; left: -80px;
}

.login-card {
  position: relative;
  z-index: 1;
  width: 400px;
  max-width: 100%;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  padding: 36px 36px 30px;
}

.login-brand {
  text-align: center;
  margin-bottom: 28px;
}

.login-brand .brand-icon {
  width: 56px; height: 56px;
  margin: 0 auto 12px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #66b1ff);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.login-brand .brand-icon svg { width: 30px; height: 30px; }

.login-brand h1 { font-size: 20px; font-weight: 700; color: var(--text-main); }
.login-brand p { font-size: 13px; color: var(--text-secondary); margin-top: 6px; }

.login-error {
  display: none;
  align-items: center;
  gap: 8px;
  background: #fef0f0;
  color: var(--danger);
  border: 1px solid #fbc4c4;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
}
.login-error svg { width: 15px; height: 15px; flex-shrink: 0; }
.login-error.show { display: flex; }

.login-footer { text-align: center; margin-top: 18px; font-size: 12px; color: #c0c4cc; }

/* ============================================================
   错误页 403 / 404
   ============================================================ */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--content-bg);
  padding: 20px;
}

.error-box {
  text-align: center;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 48px 60px;
  max-width: 520px;
}

.error-code {
  font-size: 88px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), #79bbff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.error-title { font-size: 20px; font-weight: 600; margin: 16px 0 8px; }
.error-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }

/* 功能建设中占位 */
.under-construction {
  text-align: center;
  padding: 60px 20px;
}
.under-construction .uc-icon {
  width: 72px; height: 72px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: #fdf6ec;
  color: var(--warning);
  display: flex;
  align-items: center;
  justify-content: center;
}
.under-construction .uc-icon svg { width: 34px; height: 34px; }
.under-construction h3 { font-size: 17px; margin-bottom: 8px; }
.under-construction p { color: var(--text-secondary); font-size: 13px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 992px) {
  .stat-grid, .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .stat-grid, .quick-grid { grid-template-columns: 1fr; }
  .user-name { display: none; }
  .content { padding: 12px; }
}

/* 辅助工具类 */
.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.mt-8 { margin-top: 8px; }
.mb-16 { margin-bottom: 16px; }
.text-secondary { color: var(--text-secondary); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }