:root {
  --bg: #fbfaf7;
  --bg-soft: #f3f1ea;
  --card: #ffffff;
  --fg: #1f1e1c;
  --muted: #66635c;
  --border: #e3e0d8;
  --accent: #c2603e;
  --accent-soft: #f6e7df;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1f1e1c;
    --bg-soft: #2a2926;
    --card: #2a2926;
    --fg: #f3f1ea;
    --muted: #aaa69c;
    --border: #3d3b37;
    --accent: #e08a68;
    --accent-soft: #3d2a22;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.7 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 56px; }
.brand { display: flex; flex: none; align-items: center; gap: 8px; color: var(--fg); font-weight: 700; font-size: 17px; }
.brand:hover { text-decoration: none; }
.brand img { border-radius: 6px; }
.site-header nav { display: flex; min-width: 0; gap: 18px; font-size: 14.5px; overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
.site-header nav a { color: var(--muted); }
.site-header nav a:hover { color: var(--fg); text-decoration: none; }
.main-nav { margin-left: auto; }
/* 语言切换：一个按钮，点开是下拉菜单 */
.langs { position: relative; flex: none; }
.langs summary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 14px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.langs summary::-webkit-details-marker { display: none; }
.langs summary:hover, .langs[open] summary { border-color: var(--accent); }
.langs .caret { font-size: 11px; color: var(--muted); }
.langs ul {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 140px;
  margin: 0;
  padding: 6px;
  list-style: none;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}
.langs ul a { display: block; padding: 6px 12px; border-radius: 8px; color: var(--fg); font-size: 14px; }
.langs ul a:hover { background: var(--bg-soft); text-decoration: none; }
.langs ul a[aria-current] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.hero { padding: 64px 0 24px; text-align: center; }
.eyebrow { margin: 0; color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: 0.04em; }
.hero h1 { margin: 10px 0 16px; font-size: clamp(28px, 5vw, 48px); line-height: 1.3; }
.hero h1 em { color: var(--accent); font-style: normal; }
/* 中文标题只在短语之间换行，避免「命 / 令速查表」这样的断行 */
.phrase { display: inline-block; }
.lead { max-width: 760px; margin: 0 auto 24px; color: var(--muted); font-size: 17px; }
.doc .lead { margin-left: 0; }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 0 0 36px; }
.button { display: inline-block; padding: 10px 20px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); color: var(--fg); font-weight: 600; }
.button:hover { border-color: var(--accent); text-decoration: none; }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }

.shot { margin: 0; }
.shot img { border: 1px solid var(--border); border-radius: 14px; box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1); }
.shot figcaption { margin-top: 8px; color: var(--muted); font-size: 14px; text-align: center; }
.hero-shot { max-width: 900px; margin: 0 auto; }
.gallery { display: grid; gap: 24px; align-items: start; }
.gallery.two { grid-template-columns: 1fr 1fr; }
.shot.narrow img { max-width: 360px; margin: 0 auto; }

.section { padding: 48px 20px 8px; }
.section h2 { font-size: 26px; margin: 0 0 12px; }
.section > p { color: var(--muted); max-width: 820px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 18px; }
.card { display: block; padding: 18px 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--card); color: var(--fg); }
a.card:hover { border-color: var(--accent); text-decoration: none; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 6px 0 0; color: var(--muted); font-size: 15px; }
.card .cta { display: inline-block; margin-top: 10px; color: var(--accent); font-weight: 600; font-size: 14px; }
.download strong { font-size: 18px; }
.download .platform { margin-left: 8px; color: var(--muted); font-size: 13px; }
.note { color: var(--muted); font-size: 14px; }

.faq details { border-bottom: 1px solid var(--border); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 8px 0 0; color: var(--muted); }

.doc { padding-top: 28px; padding-bottom: 40px; }
.doc h1 { font-size: clamp(26px, 4vw, 36px); line-height: 1.3; margin: 8px 0 12px; }
.crumbs { font-size: 14px; color: var(--muted); }
.promo { margin: 0 0 20px; padding: 12px 16px; border-radius: 12px; background: var(--accent-soft); font-size: 15px; }
.toc ul { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 12px; list-style: none; }
.toc a { display: inline-block; padding: 4px 12px; border: 1px solid var(--border); border-radius: 999px; font-size: 14px; color: var(--fg); }
.category { padding-top: 16px; }
.category h2 { font-size: 22px; margin: 16px 0 6px; padding-top: 8px; border-top: 1px solid var(--border); }
.quick { display: flex; flex-wrap: wrap; gap: 6px 10px; font-size: 14px; }
.command { padding: 14px 0; border-bottom: 1px dashed var(--border); scroll-margin-top: 72px; }
.command h3 { margin: 0 0 4px; font-size: 18px; }
.command h3 a { color: var(--fg); }
.command p { margin: 4px 0; }
.command .usage, .command .meta { color: var(--muted); font-size: 15px; }
.command .meta { font-size: 14px; }
.command pre { margin: 8px 0; padding: 8px 12px; border-radius: 8px; background: var(--bg-soft); overflow-x: auto; font-size: 14px; }
.command .notes { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.legal-inline { margin-top: 32px; color: var(--muted); font-size: 13px; }

.site-footer { margin-top: 56px; padding: 28px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
.site-footer .legal { font-size: 13px; }

@media (max-width: 720px) {
  .gallery.two { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .site-header nav { gap: 12px; font-size: 13.5px; }
  .main-nav { display: none !important; }
  .langs { margin-left: auto; }
}