/* 头部区域模块 */
.header-container {
  display: grid;
  grid-template-columns: auto 1fr minmax(300px, auto);
  align-items: center;
  gap: var(--space-md);
  padding: 16px 0;
  margin-bottom: 24px;
  background: transparent;
  border-bottom: 1px solid rgba(0, 0, 0, 0.02);
  position: relative;
  z-index: 10;
  .dark & {
    border-bottom-color: rgba(255, 255, 255, 0.02);
  }
}

.header-logo {
  width: 40px;
  height: 40px;
  margin-right: 10px;
  object-fit: contain;
}

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

.header-subtitle-container {
  margin-top: var(--space-xs);
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 0;
  justify-content: flex-end;
  flex-wrap: nowrap;
  height: 30px;
}

.header-action-btn {
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  outline: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0 4px;
}

.header-action-btn:hover .icon {
  opacity: 0.8;
}

.header-action-btn:not(.theme-toggle):hover,
.header-action-btn:not(.theme-toggle):focus,
.header-action-btn:not(.theme-toggle):active {
  background: transparent !important;
  box-shadow: none !important;
}

.header-action-btn svg {
  width: 100%;
  height: 100%;
  fill: var(--text-primary);
}


:not(.dark) .header-action-btn:not(.theme-toggle):hover {
  background-color: transparent;
}


.dark .header-action-btn.theme-toggle:hover {
  background: linear-gradient(90deg, #333 50%, #fff 50%) !important;
}

.page-actions {
  display: flex;
  gap: var(--space-sm);
  margin-right: var(--space-md);
}

.header-title {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.2;
  color: var(--text-primary);
  text-shadow: none;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.dark .header-title {
  color: var(--text-primary-dark);
  text-shadow: none;
}

.header-subtitle {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin: 0;
  font-weight: 500;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

.dark .header-subtitle {
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.dark .header-logo {
  filter: invert(1) brightness(0) invert(1) brightness(1.5);
}