/* 首页模块直达：独立于平滑滚动容器，窄屏和短屏保留可滚动的单列入口。 */
.home-quick-nav {
  position: fixed;
  z-index: 90;
  top: 96px;
  bottom: 80px;
  left: max(12px, env(safe-area-inset-left));
  width: 76px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
}

.home-quick-nav-scroll {
  max-height: 100%;
  padding: 6px 8px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
  pointer-events: auto;
}

.home-quick-nav-group {
  display: grid;
  justify-items: center;
  gap: 5px;
  list-style: none;
}

.home-quick-nav-group + .home-quick-nav-group {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.home-quick-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 50px;
  height: 50px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fffdf8f5;
  color: var(--text);
  box-shadow: 0 3px 8px #4a42300a;
  font-size: 10px;
  font-weight: 550;
  line-height: 1.1;
  transition: background .18s, border-color .18s, box-shadow .18s;
}

.home-quick-nav img,
.home-quick-nav svg {
  width: 23px;
  height: 23px;
  flex-shrink: 0;
  object-fit: contain;
}

.home-quick-nav a:hover,
.home-quick-nav a:focus-visible {
  background: var(--panel-soft);
  border-color: var(--accent);
  color: var(--accent-text);
  box-shadow: 0 3px 10px #4a423018;
}

.home-quick-nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 13px;
}

/* 正文留出按钮列的空间，固定的页头和页脚仍保持原来的位置。 */
.fp { padding-left: max(clamp(44px, calc(764px - 50vw), 104px), env(safe-area-inset-left)); }
.s-deploy { padding-left: max(104px, calc((100vw - 1232px) / 2)); }

@media (max-width: 960px) {
  .home-quick-nav {
    top: 88px;
    bottom: max(16px, env(safe-area-inset-bottom));
    left: max(4px, env(safe-area-inset-left));
    width: 66px;
  }
  .home-quick-nav-scroll { padding: 5px 6px; }
  .home-quick-nav a { width: 44px; height: 44px; border-radius: 11px; gap: 2px; }
  .home-quick-nav img, .home-quick-nav svg { width: 21px; height: 21px; }
  .home-quick-nav a:focus-visible { border-radius: 11px; }
  .fp, .s-deploy, .footer { padding-left: max(78px, calc(env(safe-area-inset-left) + 70px)); }
}

@media (max-width: 600px) {
  .hero-copy { padding-inline: 20px; }
  .hero-copy h1 { font-size: clamp(24px, 6vw, 28px); }
  .hero-actions .button { padding-inline: 12px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .home-quick-nav a { transition: none; }
}