.app-layout { position: relative; min-height: 100dvh; background: var(--color-bg-layout); }
/* 弹层测量会在同一任务内重置坐标；即使宿主页给 * 设置过渡，也不能动画化定位属性。 */
.ant-dropdown,
.ant-select-dropdown,
.ant-tooltip,
.ant-popover,
.ant-menu-submenu-popup,
.ant-picker-dropdown {
  transition-property: opacity, transform !important;
}
.ant-typography.system-version { color: var(--color-text-secondary); font-variant-numeric: tabular-nums; }
.app-main-layout .system-version-footer { padding: var(--space-2) var(--space-6); background: var(--color-bg-layout); text-align: right; }
.login-card > .system-version { display: block; margin-top: var(--space-4); text-align: center; }
.skip-to-content.ant-btn {
  position: fixed;
  inset: var(--space-2) auto auto var(--space-2);
  z-index: var(--layer-skip-link);
  transform: translateY(calc(-100% - var(--space-4)));
}
.skip-to-content.ant-btn:focus { transform: none; }
.app-layout::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 248px;
  background: var(--color-nav);
  content: "";
  pointer-events: none;
}
.app-layout.sider-collapsed::before { width: 72px; }
.app-layout .app-sider {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: var(--layer-navigation);
  height: 100dvh;
  overflow: auto;
  background: var(--color-nav);
  box-shadow: var(--shadow-low);
}
.app-sider .ant-layout-sider-children { display: flex; min-height: 100%; flex-direction: column; }
.app-main-layout { min-width: 0; min-height: 100dvh; background: transparent; }
.app-main-layout.has-sider { margin-left: 248px; }
.app-layout.sider-collapsed .app-main-layout.has-sider { margin-left: 72px; }
.app-layout .app-brand {
  display: flex;
  min-height: 72px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 14px 18px;
  color: var(--color-nav-text);
}
.app-brand .brand-primary {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
}
.app-brand .brand-subtitle {
  display: block;
  color: color-mix(in srgb, var(--color-nav-text) 58%, transparent);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.35;
}
.brand-logo {
  display: block;
  flex: none;
  background: currentcolor;
}
.brand-logo--wordmark {
  width: 116px;
  aspect-ratio: 464 / 134;
  -webkit-mask: url("../brand/vsign-logo-mask.png") center / contain no-repeat;
  mask: url("../brand/vsign-logo-mask.png") center / contain no-repeat;
}
.brand-logo--mark {
  width: 38px;
  aspect-ratio: 138 / 107;
  -webkit-mask: url("../brand/vsign-mark.png") center / contain no-repeat;
  mask: url("../brand/vsign-mark.png") center / contain no-repeat;
}
.app-brand .logo {
  display: inline-flex;
  align-items: center;
  color: var(--color-nav-text);
  line-height: 1;
}
.app-brand .logo-mark { display: none; }
.app-brand .product-logo-badge {
  display: inline-flex;
  line-height: 1;
}
.app-brand .product-logo-badge .ant-badge-count {
  min-width: 0;
  height: 16px;
  padding-inline: 4px;
  border: 1px solid var(--color-warning);
  background: var(--color-bg-container);
  box-shadow: 0 0 0 2px var(--color-nav);
  color: var(--color-warning);
  font-size: 10px;
  font-weight: 600;
  line-height: 14px;
}
.app-brand .brand-product {
  color: var(--color-nav-text);
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
}
.app-sider nav { min-height: 0; flex: 1; overflow-y: auto; }
.app-sider .main-navigation { border-inline-end: 0; background: transparent; }
.app-sider .ant-menu-item-group-title {
  padding: 10px 18px 4px;
  color: color-mix(in srgb, var(--color-nav-text) 48%, transparent);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}
.app-sider .ant-menu-item {
  width: auto;
  height: 40px;
  margin-block: 2px;
  margin-inline: 8px;
  color: var(--color-nav-text);
  line-height: 40px;
}
.app-sider .ant-menu-item .ant-menu-item-icon { width: 18px; height: 18px; }
.app-sider .ant-menu-item .ant-menu-item-icon + .ant-menu-title-content { margin-inline-start: 8px; }
.app-sider .ant-menu-item-selected {
  background: var(--color-nav-active);
  box-shadow: inset 3px 0 var(--color-primary);
  font-weight: 500;
}
.sider-footer {
  display: flex;
  flex: 0 0 56px;
  align-items: center;
  justify-content: flex-end;
  padding: 8px 12px;
  border-top: 1px solid color-mix(in srgb, var(--color-nav-text) 12%, transparent);
  background: var(--color-nav);
}
.sider-collapse-button.ant-btn {
  width: 40px;
  height: 40px;
  color: color-mix(in srgb, var(--color-nav-text) 76%, transparent);
}
.sider-collapse-button.ant-btn:hover,
.sider-collapse-button.ant-btn:focus-visible {
  background: color-mix(in srgb, var(--color-nav-text) 10%, transparent);
  color: var(--color-nav-text);
}
.app-layout.sider-collapsed .app-brand {
  min-height: 76px;
  align-items: center;
  justify-content: center;
  padding: 18px;
  text-align: center;
}
.app-layout.sider-collapsed .app-brand .brand-primary { justify-content: center; }
.app-layout.sider-collapsed .app-brand .product-logo-badge { margin-bottom: 0; }
.app-layout.sider-collapsed .app-brand .logo-wordmark { display: none; }
.app-layout.sider-collapsed .app-brand .logo-mark { display: block; }
.app-layout.sider-collapsed .app-brand .brand-product,
.app-layout.sider-collapsed .app-brand .brand-subtitle { display: none; }
.app-layout.sider-collapsed .app-sider .ant-menu-item-group-title { display: none; }
.app-layout.sider-collapsed .app-sider .ant-menu-item {
  width: 44px;
  margin-inline: 14px;
  padding-inline: 13px;
}
.app-layout.sider-collapsed .sider-footer { justify-content: center; padding-inline: 0; }
.app-layout .app-header {
  display: flex;
  height: auto;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin: 0 42px;
  padding: 18px 0 14px;
  border-bottom: 1px solid var(--color-border);
  background: transparent;
  line-height: 1.5;
}
.page-identity { min-width: 0; }
.page-identity h1.ant-typography { margin: 0; color: var(--color-text); font-size: 28px; font-weight: 500; line-height: 1.2; }
.header-actions { flex: none; justify-content: flex-end; }
.app-utility-button.ant-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  color: var(--color-text-secondary);
}
.app-utility-button.ant-btn:hover,
.app-utility-button.ant-btn:focus-visible {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}
.account-menu-identity { display: grid; min-width: 144px; gap: 2px; padding-block: 2px; }
.account-menu-identity strong { color: var(--color-text); font-size: 13px; font-weight: 500; }
.account-menu-identity small { color: var(--color-text-secondary); font-size: 11px; }
.status-tag { margin-inline-end: 0; border-radius: 3px; font-weight: 500; }
.status-tag.good { border-color: color-mix(in srgb, var(--color-success) 35%, transparent); background: color-mix(in srgb, var(--color-success) 12%, transparent); color: var(--color-success); }
/* Operational table hover must not darken the success tag background below AA contrast. */
.operational-list .status-tag.good { background: color-mix(in srgb, var(--color-success) 12%, var(--color-bg-container)); }
.status-tag.warn { border-color: var(--color-border-warning); background: var(--color-bg-warning); color: var(--color-warning); }
.status-tag.bad { border-color: color-mix(in srgb, var(--color-danger) 35%, transparent); background: color-mix(in srgb, var(--color-danger) 12%, transparent); color: var(--color-danger); }
.status-tag.processing, .status-tag.sim { border-color: color-mix(in srgb, var(--color-info) 35%, transparent); background: color-mix(in srgb, var(--color-info) 12%, transparent); color: var(--color-info); }
.app-layout .app-content {
  width: auto;
  min-width: 0;
  margin: 0;
  padding: 32px 42px 58px;
  background: transparent;
}
.mobile-navigation { display: none; }

.login-view {
  position: fixed;
  inset: 0;
  display: grid;
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 24px;
  place-items: center;
  overflow: auto;
  background: var(--color-bg-layout);
}
.login-toolbar { position: fixed; top: 20px; right: 20px; display: flex; gap: 8px; }
.login-card {
  width: min(440px, 100%);
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-overlay);
  background: var(--color-bg-container);
  box-shadow: var(--shadow-elevated);
}
.login-card .brand {
  display: flex;
  min-height: auto;
  align-items: center;
  gap: var(--space-4);
  padding: 0 0 24px;
  color: var(--color-text);
}
.login-card .brand .login-brand-logo {
  width: 168px;
  color: var(--color-primary);
}
.login-card .brand > div { display: grid; min-width: 0; gap: 2px; }
.login-card .brand strong { display: block; color: var(--color-text); font-size: 15px; font-weight: 500; line-height: 1.35; }
.login-card .brand small { display: block; color: var(--color-text-secondary); font-size: 12px; line-height: 1.5; }
.login-card h1 { margin: 0 0 8px; color: var(--color-text); font-size: 24px; font-weight: 500; }
.login-card > .hint { margin: 0 0 20px; color: var(--color-text-secondary); }
.login-card .ant-alert { margin-bottom: 16px; }
.login-card .ant-form-item { margin-bottom: 16px; }
.login-card .auth-submit { margin: 6px 0 0; }
.login-card .ant-input:focus-visible { outline: none; }

@media (max-width: 991px) {
  .app-layout { display: block; }
  .app-layout::before { display: none; }
  .mobile-navigation {
    position: sticky;
    top: 0;
    z-index: var(--layer-navigation);
    display: grid;
    height: auto;
    min-height: 0;
    width: 100%;
    max-width: 100vw;
    padding: 0;
    overflow: hidden;
    background: var(--color-nav);
    line-height: 1.5;
    box-shadow: var(--shadow-low);
  }
  .mobile-navigation .app-brand {
    display: flex;
    min-height: auto;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
  }
  .mobile-navigation .app-brand .logo-wordmark { width: 108px; }
  .mobile-navigation .app-brand .brand-product { font-size: 14px; }
  .mobile-navigation .app-brand .brand-subtitle { display: none; }
  .mobile-navigation nav { width: 100%; min-width: 0; max-width: 100%; overflow: auto hidden; border-top: 1px solid color-mix(in srgb, var(--color-nav-text) 12%, transparent); }
  .mobile-navigation .main-navigation { min-width: max-content; border: 0; background: transparent; }
  .mobile-navigation .ant-menu-item-group { display: contents; }
  .mobile-navigation .ant-menu-item-group-title { display: none; }
  .mobile-navigation .ant-menu-item { height: 40px; margin-inline: 2px; padding-inline: 14px; color: var(--color-nav-text); line-height: 40px; }
  .app-layout .app-header { min-height: 64px; margin: 0 18px; padding: 14px 0 12px; }
  .app-layout .app-content { padding: 24px 18px 45px; }
}

@media (max-width: 767px) {
  .app-layout .app-header { gap: var(--space-3); }
  .app-layout .app-content { padding: 20px 12px 36px; }
  .page-identity h1.ant-typography { font-size: 24px; }
  .login-toolbar { position: static; justify-self: end; margin-bottom: 16px; }
  .login-view { display: block; padding: 16px; }
  .login-card { margin: 0 auto; padding: 24px 20px; }
}

/* Shared page composition. Ant Design owns control skins; these rules only
   establish business-page density, hierarchy and responsive containment. */
.grid { display: grid; gap: var(--space-4); }

/* DESIGN.md 的受控原生选择例外；只作用于统一适配器，不覆盖页面上的任意原生控件。 */
.browser-select { display: inline-flex; flex-direction: column; gap: var(--space-1); width: 100%; min-width: 0; vertical-align: top; }
.browser-select-control { box-sizing: border-box; width: 100%; max-width: 100%; min-width: 0; height: var(--browser-select-height); border: 1px solid var(--color-border); border-radius: var(--radius-control); padding-inline: var(--space-2); color: var(--color-text); background: var(--color-bg-container); font: inherit; }
.browser-select-control:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.browser-select-control:disabled { color: var(--color-text-secondary); background: var(--color-bg-subtle); cursor: not-allowed; }
.browser-select-list .browser-select-control { height: auto; }
.browser-select-summary { overflow-wrap: anywhere; }
.browser-select-error { border-color: var(--color-danger); }
.browser-settings { max-width: 48rem; }
.browser-settings-modes { display: grid; gap: var(--space-4); }
.browser-settings-modes .ant-radio-wrapper { align-items: flex-start; margin-inline-end: 0; }
.browser-settings-modes .ant-radio-wrapper strong, .browser-settings-modes .hint { display: block; }
.browser-settings-preview { display: grid; gap: var(--space-2); max-width: 28rem; margin-block: var(--space-6); }
.grid.two { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
.grid.kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-container);
  background: var(--color-bg-container);
}
.hint { color: var(--color-text-secondary); font-size: 12px; }
.persistent-error-message {
  display: inline-flex;
  align-items: flex-start;
  gap: var(--space-2);
  max-width: min(640px, calc(100vw - 112px));
  text-align: left;
}
.persistent-error-message-text {
  min-width: 0;
  max-height: 60dvh;
  overflow: auto;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.persistent-error-message .ant-btn { flex: none; }
.good { color: var(--color-success); }
.warn { color: var(--color-warning); }
.bad { color: var(--color-danger); }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-4); }
.toolbar h2, .card > h2 { margin-top: 0; }
.form-grid { display: grid; gap: var(--space-3); }
.form-grid label { display: grid; gap: var(--space-1); color: var(--color-text-secondary); font-size: 13px; }
.form-grid .ant-input, .form-grid .ant-select, .form-grid .ant-input-number { width: 100%; }
.table-wrap { max-width: 100%; overflow: auto; }
.detail-list { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 8px 12px; }
.detail-list dt { color: var(--color-text-secondary); }
.detail-list dd { min-width: 0; margin: 0; overflow-wrap: anywhere; }
.ant-modal-body .modal-actions { position: static; margin: var(--space-6) 0 0; padding: var(--space-4) 0 0; border-top: 1px solid var(--color-border); background: transparent; box-shadow: none; }
.quick-start-intro h2 { font-size: 52px; letter-spacing: 0; }
.quick-start-intro-copy > span,
.quick-start-eyebrow,
.quick-start-finish > div > span,
.quick-start-finish p { color: var(--color-text-secondary); }
.mobile-navigation .ant-menu-item-selected,
.mobile-navigation .ant-menu-item-selected .ant-menu-title-content { color: var(--color-nav-text); }
.mobile-navigation .main-navigation .ant-menu-item-selected { background: var(--color-nav-active); }
@media (max-width: 991px) {
  .grid.kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .grid.two, .grid.kpis { grid-template-columns: 1fr; }
  .detail-list { grid-template-columns: 1fr; }
  .card { padding: var(--space-4); }
  .quick-start-intro h2 { font-size: 36px; }
}

/* Shared async footprints retain page hierarchy without imitating real data. */
.page-loading { padding-block: var(--space-6); }
.page-loading-heading { max-width: 24rem; margin-bottom: var(--space-8); }
.page-loading-content { display: grid; gap: var(--space-6); }
.page-loading--overview .page-loading-content { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.page-loading--form { max-width: 48rem; }
.page-loading--form .page-loading-content { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.page-load-error { margin-block: var(--space-4); }
.app-content .ant-table { font-variant-numeric: tabular-nums; }
@media (max-width: 767px) {
  .page-loading--overview .page-loading-content { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-loading--form .page-loading-content { grid-template-columns: minmax(0, 1fr); }
}

/* Network diagnostics keeps readable status colours over table hover backgrounds. */
.network-diagnostics .status-tag.good { background: color-mix(in srgb, var(--color-success) 12%, var(--color-bg-container)); }
.network-diagnostics .status-tag.bad { background: color-mix(in srgb, var(--color-danger) 12%, var(--color-bg-container)); }