/* 页面 Loading：后台仅遮主内容区；登录页全屏 */
.admin-page-loader {
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.28s ease,
    visibility 0.28s ease;
}

.admin-page-loader--content {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--shell-chrome-bg, #fff) 78%, transparent);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.admin-shell.is-shell-layout-animating .admin-page-loader--content {
  background: color-mix(in srgb, var(--shell-chrome-bg, #fff) 86%, transparent);
}

.admin-page-loader--fullscreen {
  position: fixed;
  inset: 0;
  z-index: 120000;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.admin-page-loader.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.admin-page-loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.admin-page-loader__spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(64, 158, 255, 0.22);
  border-top-color: #409eff;
  border-radius: 50%;
  animation: admin-page-loader-spin 0.75s linear infinite;
}

.admin-page-loader__text {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #606266;
}

@keyframes admin-page-loader-spin {
  to {
    transform: rotate(360deg);
  }
}

html.theme-dark .admin-page-loader--content {
  background: rgba(10, 14, 22, 0.45);
}

html.theme-dark .admin-page-loader--fullscreen {
  background: rgba(10, 14, 22, 0.78);
}

html.theme-dark .admin-page-loader__spinner {
  border-color: rgba(96, 165, 250, 0.25);
  border-top-color: #60a5fa;
}

html.theme-dark .admin-page-loader__text {
  color: #cbd5e1;
}

@media (prefers-reduced-motion: reduce) {
  .admin-page-loader {
    transition-duration: 0.01ms;
  }

  .admin-page-loader__spinner {
    animation-duration: 1.2s;
  }
}