/* Usage guide (/guide/ and /en/guide/). External stylesheet: the site CSP forbids inline styles. */
:root {
  --g-bg: #faf7f2; --g-fg: #2b2622; --g-muted: #6b625a; --g-line: #e6ddd2; --g-card: #ffffff;
  --g-head: #f6eee4; --g-accent: #c4621d; --g-accent-fg: #ffffff; --g-rule: #f0b47a; --g-tip: #fff5ea;
  --g-dark: #3c332e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --g-bg: #2f2824; --g-fg: #f2e8db; --g-muted: #b3a493; --g-line: #4a403a; --g-card: #3a322d;
    --g-head: #443a34; --g-accent: #ffb659; --g-accent-fg: #2b231e; --g-rule: #e8623f; --g-tip: #3d322b;
    --g-dark: #1f1a17;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--g-bg); color: var(--g-fg);
  font: 16px/1.75 -apple-system, "PingFang SC", "Hiragino Sans", "Microsoft YaHei", "Noto Sans SC", sans-serif; }
a { color: var(--g-accent); font-weight: 600; word-break: break-word; }

.g-top { position: sticky; top: 0; z-index: 5; background: var(--g-dark); color: #f2e8db; }
.g-top__in { max-width: 760px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.g-brand { color: #f2e8db; text-decoration: none; font-weight: 800; font-size: 18px; margin-right: auto; }
.g-top a.g-lnk { color: #e9dccb; text-decoration: none; font-size: 14px; }
.g-top a.g-lang { border: 1px solid rgba(255,240,220,.35); border-radius: 999px; padding: 2px 10px; }

main { max-width: 760px; margin: 0 auto; padding: 28px 16px 64px; }
h1 { font-size: 28px; line-height: 1.3; margin: 0 0 6px; }
.lead { color: var(--g-muted); margin: 0 0 20px; }
h2 { font-size: 21px; margin: 40px 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--g-rule); scroll-margin-top: 64px; }
h3 { font-size: 16px; margin: 22px 0 6px; }
ol, ul { padding-left: 22px; margin: 6px 0; }
li { margin: 4px 0; }

.g-pick { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0 0 18px; }
.g-pick a { display: block; text-decoration: none; color: var(--g-fg); background: var(--g-card);
  border: 2px solid var(--g-line); border-radius: 16px; padding: 16px 18px; }
.g-pick a:hover, .g-pick a:focus-visible { border-color: var(--g-accent); }
.g-pick .g-ico { font-size: 28px; display: block; }
.g-pick b { display: block; font-size: 18px; margin: 2px 0; }
.g-pick span.g-sub { color: var(--g-muted); font-size: 14px; font-weight: 400; }
.g-pick .g-badge { display: inline-block; background: var(--g-accent); color: var(--g-accent-fg); font-size: 12px;
  font-weight: 700; border-radius: 999px; padding: 0 8px; margin-left: 6px; vertical-align: middle; }
@media (max-width: 560px) { .g-pick { grid-template-columns: 1fr; } }

.g-btn { display: inline-block; background: var(--g-accent); color: var(--g-accent-fg); text-decoration: none;
  border-radius: 999px; padding: 9px 18px; font-weight: 700; margin: 4px 0 6px; }

.tbl { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin: 8px 0; font-size: 15px; }
th, td { border: 1px solid var(--g-line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--g-head); }
.links { background: var(--g-card); border: 1px solid var(--g-line); border-radius: 12px; padding: 12px 16px; }
.links p { margin: 4px 0; }
.tip { background: var(--g-tip); border-left: 4px solid var(--g-rule); border-radius: 6px; padding: 8px 12px; margin: 10px 0; }
kbd { background: var(--g-card); border: 1px solid var(--g-line); border-radius: 4px; padding: 0 5px; font-size: 13px; }
.g-foot { text-align: center; color: var(--g-muted); font-size: 14px; padding: 8px 16px 40px; }