/* Admin console shell: sidebar + topbar + tabs */
html, body.admin-shell-page { height: 100%; margin: 0; }
body.admin-shell-page {
  color: #1f2937;
  background: #eef1f6;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow: hidden;
}
.admin-app {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  height: 100vh;
  transition: grid-template-columns .2s ease;
}
.admin-app.sidebar-collapsed { grid-template-columns: 64px minmax(0, 1fr); }
.admin-app.sidebar-collapsed .admin-sidebar {
  overflow: visible;
  opacity: 1;
  pointer-events: auto;
}
.admin-app.sidebar-collapsed .admin-brand {
  padding: 16px 8px 12px;
  text-align: center;
}
.admin-app.sidebar-collapsed .admin-brand strong {
  font-size: 13px;
  letter-spacing: 0;
}
.admin-app.sidebar-collapsed .admin-brand span,
.admin-app.sidebar-collapsed .admin-side-link .label {
  display: none;
}
.admin-app.sidebar-collapsed .admin-side-nav {
  padding: 10px 8px;
  align-items: center;
}
.admin-app.sidebar-collapsed .admin-side-link {
  justify-content: center;
  width: 48px;
  min-height: 42px;
  padding: 0;
  position: relative;
}
.admin-app.sidebar-collapsed .admin-side-link .ico {
  margin: 0;
}
/* Hover tooltip when icon-rail is collapsed */
.admin-app.sidebar-collapsed .admin-side-link[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  padding: 6px 10px;
  border-radius: 6px;
  background: #111827;
  color: #fff;
  font-size: 12px;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity .12s ease;
}
.admin-app.sidebar-collapsed .admin-side-link[data-tooltip]::before {
  content: '';
  position: absolute;
  left: calc(100% + 4px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  border: 5px solid transparent;
  border-right-color: #111827;
  opacity: 0;
  pointer-events: none;
  transition: opacity .12s ease;
}
.admin-app.sidebar-collapsed .admin-side-link:hover::after,
.admin-app.sidebar-collapsed .admin-side-link:hover::before,
.admin-app.sidebar-collapsed .admin-side-link:focus-visible::after,
.admin-app.sidebar-collapsed .admin-side-link:focus-visible::before {
  opacity: 1;
}
.admin-sidebar {
  display: flex; flex-direction: column;
  background: #111827; color: #e5e7eb;
  border-right: 1px solid #1f2937;
  transition: opacity .2s ease;
}
.admin-brand { padding: 22px 20px 18px; border-bottom: 1px solid #1f2937; }
.admin-brand strong { display: block; font-size: 18px; letter-spacing: .02em; color: #fff; }
.admin-brand span { display: block; margin-top: 4px; font-size: 12px; color: #9ca3af; }
.admin-side-nav {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 10px; overflow: auto; flex: 1;
}
.admin-side-link {
  display: flex; align-items: center; gap: 10px;
  min-height: 42px; padding: 0 12px;
  border-radius: 10px; color: #d1d5db; text-decoration: none; font-size: 14px;
}
.admin-side-link:hover { background: #1f2937; color: #fff; }
.admin-side-link.active { background: #2563eb; color: #fff; }
.admin-side-link .ico {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px; border-radius: 6px;
  background: rgba(255,255,255,.08); font-size: 11px; font-weight: 700;
}
.admin-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: #eef1f6; }
.admin-topbar {
  display: flex; align-items: center; gap: 12px;
  min-height: 56px; padding: 0 16px;
  background: #fff; border-bottom: 1px solid #e5e7eb;
}
.admin-icon-btn {
  width: 36px; height: 36px; border: 1px solid #e5e7eb; border-radius: 8px;
  background: #fff; color: #374151; cursor: pointer; font-size: 16px;
}
.admin-icon-btn:hover { border-color: #2563eb; color: #2563eb; }
.admin-breadcrumb { flex: 1; min-width: 0; color: #6b7280; font-size: 13px; }
.admin-breadcrumb strong { color: #111827; font-weight: 600; }
.admin-topbar-right { display: flex; align-items: center; gap: 10px; color: #4b5563; font-size: 13px; }
.admin-topbar-right button {
  min-height: 34px; padding: 0 12px; border: 1px solid #e5e7eb; border-radius: 8px;
  background: #fff; color: #374151; cursor: pointer;
}
.admin-topbar-right button:hover { border-color: #2563eb; color: #2563eb; }
.admin-tabs {
  display: flex; align-items: flex-end; gap: 4px;
  min-height: 40px; padding: 8px 12px 0;
  background: #eef1f6; border-bottom: 1px solid #e5e7eb;
  overflow-x: auto;
}
.admin-tab {
  display: inline-flex; align-items: center; gap: 8px;
  max-width: 200px; min-height: 34px; padding: 0 10px 0 12px;
  border: 1px solid transparent; border-bottom: none;
  border-radius: 8px 8px 0 0; background: transparent;
  color: #6b7280; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.admin-tab.active {
  background: #fff; border-color: #e5e7eb; color: #111827; font-weight: 600;
}
.admin-tab-title { overflow: hidden; text-overflow: ellipsis; }
.admin-tab-close {
  width: 18px; height: 18px; border: none; border-radius: 4px;
  background: transparent; color: #9ca3af; cursor: pointer; line-height: 1;
}
.admin-tab-close:hover { background: #fee2e2; color: #dc2626; }
.admin-panes { position: relative; flex: 1; min-height: 0; background: #eef1f6; }
.admin-pane { position: absolute; inset: 0; display: none; background: #eef1f6; }
.admin-pane.active { display: block; }
.admin-pane iframe { width: 100%; height: 100%; border: 0; background: #eef1f6; }
body.admin-shell-page.admin-auth-pending .admin-app { visibility: hidden; }
body.admin-shell-page.admin-auth-pending::before {
  content: '正在验证管理员会话…';
  position: fixed; inset: 0; z-index: 400; display: grid; place-items: center;
  color: #6b7280; background: #eef1f6; font-size: 14px;
}
@media (max-width: 900px) {
  .admin-app { grid-template-columns: 200px minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .admin-app,
  .admin-app.sidebar-collapsed { grid-template-columns: 0 minmax(0, 1fr); }
  .admin-app.sidebar-collapsed .admin-sidebar {
    opacity: 0; pointer-events: none; overflow: hidden;
  }
  .admin-app.sidebar-open,
  .admin-app.sidebar-collapsed.sidebar-open {
    grid-template-columns: min(80vw, 232px) minmax(0, 1fr);
  }
  .admin-app.sidebar-open .admin-sidebar,
  .admin-app.sidebar-collapsed.sidebar-open .admin-sidebar {
    opacity: 1; pointer-events: auto; overflow: auto;
  }
  .admin-app.sidebar-open .admin-brand span,
  .admin-app.sidebar-open .admin-side-link .label,
  .admin-app.sidebar-collapsed.sidebar-open .admin-brand span,
  .admin-app.sidebar-collapsed.sidebar-open .admin-side-link .label {
    display: revert;
  }
  .admin-app.sidebar-open .admin-side-link,
  .admin-app.sidebar-collapsed.sidebar-open .admin-side-link {
    justify-content: flex-start; width: auto; padding: 0 12px;
  }
  .admin-app.sidebar-open .admin-side-link[data-tooltip]::after,
  .admin-app.sidebar-open .admin-side-link[data-tooltip]::before,
  .admin-app.sidebar-collapsed.sidebar-open .admin-side-link[data-tooltip]::after,
  .admin-app.sidebar-collapsed.sidebar-open .admin-side-link[data-tooltip]::before {
    display: none;
  }
}
html.admin-embed-root, html.admin-embed-root body { height: auto; min-height: 100%; background: #eef1f6 !important; }
body.admin-embed { margin: 0; background: #eef1f6 !important; }
body.admin-embed > .shell {
  width: 100% !important; max-width: none !important; margin: 0 !important;
  padding: 16px 18px 40px !important; box-sizing: border-box;
}
body.admin-embed > .shell > header,
body.admin-embed > .shell > .admin-subnav { display: none !important; }
body.admin-embed .card {
  background: #fff; border: 1px solid #e5e7eb;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}