/* 两个公开小工具共用的页头，保证导航居中且写作台入口保持一致。 */
.tool-page-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 20px;
  min-height: 72px;
  padding: 12px min(5vw, 64px);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(8, 8, 12, 0.86);
  backdrop-filter: blur(18px);
}

.tool-page-brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
}

.tool-page-brand img {
  width: clamp(118px, 13vw, 168px);
  height: auto;
  max-height: 48px;
  object-fit: contain;
}

.tool-page-nav {
  display: inline-flex;
  align-items: center;
  justify-self: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.018);
}

.tool-page-nav a {
  padding: 7px 10px;
  color: var(--text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
  transition:
    color 0.18s ease,
    background-color 0.18s ease;
}

.tool-page-nav a:hover,
.tool-page-nav a:focus-visible {
  color: var(--text-primary);
  background: rgba(232, 180, 75, 0.1);
}

/* 公开工具页复用首页 nav-cta 的层级、箭头交换和悬停反馈。 */
.tool-page-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: end;
  gap: 12px;
  min-height: 38px;
  padding: 0 17px;
  border: 1px solid rgba(232, 180, 75, 0.54);
  border-radius: var(--r-sm);
  color: var(--accent-amber);
  font-size: 0.75rem;
  font-weight: var(--weight-bold);
  white-space: nowrap;
  transition:
    color 0.2s ease,
    background 0.2s ease;
}

.tool-page-nav-cta:hover,
.tool-page-nav-cta:focus-visible {
  color: var(--bg-deep);
  background: var(--accent-amber);
}

.tool-page-nav-cta .landing-arrow-swap {
  position: relative;
  display: inline-flex;
  width: 18px;
  height: 18px;
}

.tool-page-nav-cta .landing-arrow-icon {
  position: absolute;
  inset: 0;
  width: 18px;
  height: 18px;
  transform: rotate(-45deg);
  transform-origin: center;
  transition: opacity 0.2s ease;
}

.tool-page-nav-cta .landing-arrow-icon--ink {
  opacity: 0;
}

.tool-page-nav-cta:hover .landing-arrow-icon--amber,
.tool-page-nav-cta:focus-visible .landing-arrow-icon--amber {
  opacity: 0;
}

.tool-page-nav-cta:hover .landing-arrow-icon--ink,
.tool-page-nav-cta:focus-visible .landing-arrow-icon--ink {
  opacity: 1;
}

@media (max-width: 760px) {
  .tool-page-header {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px 14px;
    padding: 11px 18px;
  }

  .tool-page-nav {
    grid-column: 1 / -1;
    justify-self: stretch;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .tool-page-nav::-webkit-scrollbar {
    display: none;
  }

  .tool-page-nav-cta {
    padding: 0 12px;
  }
}

@media (max-width: 460px) {
  .tool-page-nav {
    gap: 0;
    padding: 2px;
  }

  .tool-page-nav a {
    padding: 6px 7px;
    font-size: 0.68rem;
  }
}