/* 后台数据管理 — Bootstrap + CSS3 响应式主题 */
:root {
  --admin-primary: #2563eb;
  --admin-primary-dark: #1d4ed8;
  --admin-primary-soft: #eff6ff;
  --admin-accent: #a50d27;
  --admin-sidebar-w: 268px;
  --admin-topbar-h: 56px;
  --admin-bg: #eef1f6;
  --admin-sidebar-bg: #e8ecf2;
  --admin-sidebar-surface: #f4f6fa;
  --admin-surface: #ffffff;
  --admin-border: #e2e8f0;
  --admin-border-strong: #cbd5e1;
  --admin-text: #0f172a;
  --admin-text-secondary: #475569;
  --admin-muted: #64748b;
  --admin-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 10px 24px -4px rgba(15, 23, 42, 0.08);
  --admin-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --admin-radius: 12px;
  --admin-radius-sm: 8px;
  --admin-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[v-cloak] {
  display: none !important;
}

.admin-body {
  margin: 0;
  min-height: 100vh;
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: 'Noto Sans SC', 'Segoe UI', system-ui, sans-serif;
}

.admin-app {
  display: flex;
  min-height: 100vh;
}

/* —— 侧边栏（与内容区 rpc-page 统一浅色专业风格）—— */
.admin-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 1040;
  width: var(--admin-sidebar-w);
  background: linear-gradient(180deg, #e4e9f0 0%, var(--admin-sidebar-bg) 28%, #eef1f6 100%);
  color: var(--admin-text-secondary);
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform var(--admin-transition), box-shadow var(--admin-transition);
  border-right: 1px solid #d5dce6;
  box-shadow: 2px 0 12px rgba(15, 23, 42, 0.06);
}

.admin-sidebar__brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1.15rem 1.1rem 1rem;
  border-bottom: 1px solid #d5dce6;
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: blur(6px);
  flex-shrink: 0;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s ease;
}

.admin-sidebar__brand:hover {
  background: rgba(37, 99, 235, 0.08);
  color: inherit;
}

.admin-sidebar__brand-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--admin-radius-sm);
  background: linear-gradient(135deg, var(--admin-primary-soft) 0%, #dbeafe 100%);
  border: 1px solid #bfdbfe;
  color: var(--admin-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  box-shadow: var(--admin-shadow-sm);
}

.admin-sidebar__brand-text h1 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  color: var(--admin-text);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.admin-sidebar__brand-text p {
  font-size: 0.7rem;
  color: var(--admin-muted);
  margin: 0.15rem 0 0;
  letter-spacing: 0.02em;
}

.admin-sidebar__nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
  width: 100%;
  min-width: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overflow-anchor: none;
  padding: 0.5rem 0.55rem 1rem;
  scrollbar-width: thin;
  scrollbar-color: #b8c4d4 transparent;
}

.admin-sidebar__nav::-webkit-scrollbar {
  width: 5px;
}

.admin-sidebar__nav::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.admin-nav-group {
  display: block;
  width: 100%;
  flex: 0 0 auto;
  margin: 0 0 0.4rem;
  border-radius: var(--admin-radius-sm);
  background: rgba(255, 255, 255, 0.38);
  border: 1px solid rgba(203, 213, 225, 0.65);
  overflow: hidden;
}

.admin-nav-group.is-active-group {
  background: rgba(255, 255, 255, 0.58);
  border-color: #c7d6eb;
  /* 不用 box-shadow，避免切换菜单时分组高度/布局微跳 */
}

.admin-nav-group .nav-group-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  padding: 0.55rem 0.7rem;
  margin: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: background var(--admin-transition), color var(--admin-transition);
}

.admin-nav-group .nav-group-toggle:hover {
  background: rgba(255, 255, 255, 0.45);
}

.admin-nav-group.is-active-group .nav-group-toggle {
  color: var(--admin-primary-dark);
}

.admin-nav-group .nav-group-toggle__label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--admin-text-secondary);
}

.admin-nav-group.is-active-group .nav-group-toggle__label {
  color: var(--admin-primary-dark);
}

.admin-nav-group .nav-group-toggle__label::before {
  content: "";
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--admin-border-strong);
  flex-shrink: 0;
  transition: background var(--admin-transition);
}

.admin-nav-group.is-active-group .nav-group-toggle__label::before {
  background: var(--admin-primary);
}

.admin-nav-group .nav-group-toggle__chevron {
  font-size: 0.8125rem;
  color: var(--admin-muted);
  transition: transform var(--admin-transition), color var(--admin-transition);
  flex-shrink: 0;
}

.admin-nav-group.is-expanded .nav-group-toggle__chevron {
  transform: rotate(180deg);
  color: var(--admin-primary);
}

.admin-nav-group__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.22s ease;
}

.admin-nav-group.is-expanded .admin-nav-group__body {
  grid-template-rows: 1fr;
}

/* 页面加载还原折叠状态时禁用动画，避免菜单“跳动” */
.admin-sidebar__nav.admin-nav--initializing .admin-nav-group__body,
.admin-sidebar__nav.admin-nav--initializing .nav-group-toggle__chevron {
  transition: none !important;
}

.admin-nav-group__inner {
  overflow: hidden;
  min-height: 0;
  padding: 0 0.25rem 0.35rem;
}

.admin-sidebar__nav .nav-link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--admin-text-secondary);
  border-radius: var(--admin-radius-sm);
  padding: 0.48rem 0.65rem 0.48rem 0.85rem;
  margin: 0 0.2rem 0.12rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.35;
  min-height: 2.125rem;
  transition: background var(--admin-transition), color var(--admin-transition), border-color var(--admin-transition);
  border: 1px solid transparent;
  background: transparent;
  width: auto;
  max-width: 100%;
  box-sizing: border-box;
  text-align: left;
  text-decoration: none;
  position: relative;
}

.admin-sidebar__nav .nav-link .nav-icon {
  width: 1.15rem;
  font-size: 0.95rem;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.75;
  transition: opacity var(--admin-transition), color var(--admin-transition);
}

.admin-sidebar__nav .nav-link span {
  flex: 1;
  min-width: 0;
}

.admin-sidebar__nav .nav-link:hover {
  background: rgba(239, 246, 255, 0.95);
  color: var(--admin-primary-dark);
  border-color: #dbeafe;
}

.admin-sidebar__nav .nav-link:hover .nav-icon {
  opacity: 1;
  color: var(--admin-primary);
}

.admin-sidebar__nav .nav-link::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 1.1rem;
  background: transparent;
  border-radius: 0 3px 3px 0;
  transition: background var(--admin-transition);
}

.admin-sidebar__nav .nav-link.active {
  background: rgba(239, 246, 255, 0.98);
  color: var(--admin-primary);
  font-weight: 500;
  border-color: #bfdbfe;
}

.admin-sidebar__nav .nav-link.active::before {
  background: var(--admin-primary);
}

.admin-sidebar__nav .nav-link.active .nav-icon {
  opacity: 1;
  color: var(--admin-primary);
}

/* 分组内子菜单：字号统一、略小于分组标题 */
.admin-sidebar__nav .nav-link.sub {
  padding: 0.45rem 0.65rem 0.45rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  min-height: 2rem;
}

.admin-sidebar__nav .nav-link.sub .nav-icon {
  font-size: 0.9rem;
  width: 1.1rem;
  opacity: 0.7;
}

.admin-sidebar__nav .nav-link.sub:hover .nav-icon,
.admin-sidebar__nav .nav-link.sub.active .nav-icon {
  opacity: 1;
}

.admin-sidebar__footer {
  padding: 0.75rem 0.55rem 0.9rem;
  border-top: 1px solid #d5dce6;
  background: rgba(255, 255, 255, 0.38);
  backdrop-filter: blur(6px);
  flex-shrink: 0;
}

.admin-sidebar__footer .btn-logout {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: #b91c1c;
  width: 100%;
  margin: 0;
  text-align: left;
  border-radius: var(--admin-radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid #f0c4c4;
  transition: background var(--admin-transition), color var(--admin-transition), border-color var(--admin-transition);
}

.admin-sidebar__footer .btn-logout .nav-icon {
  width: 1.15rem;
  text-align: center;
}

.admin-sidebar__footer .btn-logout:hover {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fca5a5;
}

.admin-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1035;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
}

/* —— 主区域 —— */
.admin-main {
  flex: 1;
  margin-left: var(--admin-sidebar-w);
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  height: var(--admin-topbar-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  gap: 1rem;
  box-shadow: var(--admin-shadow-sm);
}

.admin-topbar__toggle {
  display: none;
  border: none;
  background: transparent;
  padding: 0.35rem;
  color: var(--admin-text);
  border-radius: 8px;
}

.admin-topbar__toggle:hover {
  background: var(--admin-bg);
}

.admin-topbar__home {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--admin-primary, #2563eb);
  text-decoration: none;
  background: rgba(37, 99, 235, 0.08);
  flex-shrink: 0;
}

.admin-topbar__home:hover {
  background: rgba(37, 99, 235, 0.14);
  color: var(--admin-primary, #2563eb);
}

.admin-topbar__title {
  flex: 1;
  min-width: 0;
}

.admin-topbar__title h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
  color: var(--admin-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-topbar__user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--admin-muted);
}

.admin-topbar__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-dark) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.75rem;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}

.admin-content {
  flex: 1;
  padding: 1.25rem 1.5rem 2rem;
  background: var(--admin-bg);
}

/* —— 登录页（无侧栏） —— */
.admin-standalone {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 50%, #1e3a5f 100%);
}

.admin-login-card {
  width: 100%;
  max-width: 420px;
  background: var(--admin-surface);
  border-radius: 16px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.admin-login-card__header {
  background: linear-gradient(135deg, var(--admin-accent) 0%, #6f0b1b 100%);
  color: #fff;
  padding: 2rem 1.75rem 1.5rem;
}

.admin-login-card__body {
  padding: 1.75rem;
}

/* —— 页面组件 —— */
.admin-page-header {
  margin-bottom: 1.25rem;
}

.admin-page-header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
}

.admin-page-header .lead {
  color: var(--admin-muted);
  font-size: 0.9rem;
  margin: 0;
}

.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.admin-stat-card {
  background: var(--admin-surface);
  border-radius: var(--admin-radius);
  padding: 1rem 1.15rem;
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow);
  transition: transform var(--admin-transition), box-shadow var(--admin-transition);
}

.admin-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.1);
}

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

.admin-stat-card .label {
  font-size: 0.8rem;
  color: var(--admin-muted);
  margin-top: 0.2rem;
}

.admin-panel {
  background: var(--admin-surface);
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow);
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.admin-panel__head {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.admin-panel__head h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.admin-panel__head .text-muted {
  font-size: 0.8rem;
}

.admin-panel__body {
  padding: 0;
}

.admin-panel__toolbar {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--admin-border);
  background: #f8fafc;
}

.admin-table {
  margin: 0;
  font-size: 0.875rem;
}

.admin-table thead th {
  background: #f1f5f9;
  font-weight: 600;
  font-size: 0.8rem;
  color: #475569;
  border-bottom: 1px solid var(--admin-border);
  white-space: nowrap;
  padding: 0.65rem 1rem;
}

.admin-table tbody td {
  padding: 0.6rem 1rem;
  vertical-align: middle;
  border-color: #f1f5f9;
}

.admin-table tbody tr {
  transition: background 0.15s ease;
}

.admin-table tbody tr:hover {
  background: #f8fafc;
}

.admin-module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.admin-module-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 1.25rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: border-color var(--admin-transition), box-shadow var(--admin-transition);
}

.admin-module-card:hover {
  border-color: var(--admin-primary);
  box-shadow: 0 8px 24px rgba(13, 110, 253, 0.12);
}

.admin-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--admin-border);
  background: #f8fafc;
}

.admin-tabs .nav-link {
  border: none;
  border-radius: 8px 8px 0 0;
  color: var(--admin-muted);
  font-size: 0.875rem;
  padding: 0.65rem 1rem;
  margin-bottom: -1px;
  background: transparent;
  cursor: pointer;
}

.admin-tabs .nav-link.active {
  color: var(--admin-primary);
  background: var(--admin-surface);
  font-weight: 600;
  border: 1px solid var(--admin-border);
  border-bottom-color: var(--admin-surface);
}

.admin-search-input {
  max-width: 280px;
}

.admin-toast-stack {
  position: fixed;
  top: calc(var(--admin-topbar-h) + 12px);
  right: 1rem;
  z-index: 1080;
  max-width: 360px;
}

.admin-module-page {
  width: 100%;
}

.admin-module-page .admin-ring-page,
.admin-module-page.draw-stats-page,
.admin-module-page.ring-mould-page {
  background: transparent;
}

/* 口环模具表：操作列图标（Bootstrap Icons，避免 SVG sprite 撑大） */
.ring-mould-main .ring-mould-shell-td-actions .d-inline-flex {
  gap: 0.25rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.ring-mould-main .ring-mould-icon-btn {
  --bs-btn-padding-y: 0.15rem;
  --bs-btn-padding-x: 0.35rem;
  --bs-btn-font-size: 0.75rem;
  --bs-btn-line-height: 1;
  padding: 0.15rem 0.35rem !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
}

.ring-mould-main .ring-mould-icon-btn .bi {
  font-size: 0.8rem;
  line-height: 1;
  pointer-events: none;
}

.ring-mould-main .ring-mould-table td.ring-mould-shell-td-actions {
  white-space: nowrap;
  vertical-align: middle !important;
}

.ring-mould-main .ring-mould-table img.img-thumbnail {
  max-height: 40px !important;
  max-width: 56px !important;
  width: auto !important;
  height: auto !important;
  object-fit: contain;
  padding: 2px;
}

/* 兼容旧类名 */
.dashboard-card {
  background: var(--admin-surface);
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border);
  padding: 1rem 1.25rem;
  box-shadow: var(--admin-shadow);
}

/* —— 响应式 —— */
@media (max-width: 991.98px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.is-open {
    transform: translateX(0);
    box-shadow: var(--admin-shadow);
  }

  .admin-backdrop.is-visible {
    display: block;
  }

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

  .admin-topbar__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .admin-content {
    padding: 1rem;
  }
}

@media (max-width: 575.98px) {
  .admin-stat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .admin-panel__head {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-search-input {
    max-width: 100%;
    width: 100%;
  }
}