/* 中性公开门面 · 浅色主题 · 无第三方字体/脚本 */
:root {
  --bg: #f7f8fa; --surface: #ffffff; --ink: #18202c; --muted: #5b6779;
  --line: #dfe4ec; --accent: #2f5d8a; --accent-soft: #eaf1f8;
  --ok: #1c6b4a; --ok-bg: #e7f4ed; --warn: #8a5a12; --warn-bg: #fcf2df;
  --code-bg: #f1f3f7;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; font-size: 12.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; word-break: break-all; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 24px; }
header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 62px; gap: 20px; flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: -.02em; font-size: 17px; color: var(--ink); }
nav { display: flex; gap: 22px; font-size: 14px; }
nav a { color: var(--muted); }
nav a.active { color: var(--accent); font-weight: 600; }
main { padding: 44px 0 72px; }
.hero { padding: 8px 0 30px; }
h1 { font-size: 31px; line-height: 1.25; letter-spacing: -.03em; margin: 0 0 14px; }
h2 { font-size: 20px; letter-spacing: -.02em; margin: 40px 0 14px; }
h3 { font-size: 17px; margin: 0 0 8px; }
.lede { font-size: 16px; color: var(--muted); max-width: 720px; margin: 0; }
.note { background: var(--accent-soft); border: 1px solid #d3e2f1; border-radius: 10px;
  padding: 14px 18px; font-size: 14px; color: #294a68; margin: 22px 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 26px; }
.card { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px; color: var(--ink); transition: border-color .15s, box-shadow .15s; }
.card:hover { border-color: #a9c2dc; box-shadow: 0 4px 18px rgba(30,60,95,.07); text-decoration: none; }
.card-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }
.card-id { font: 12px ui-monospace, Menlo, Consolas, monospace; color: var(--muted); }
.card p { color: var(--muted); font-size: 13.5px; margin: 0 0 16px; min-height: 42px; }
.card-meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12.5px; color: var(--muted);
  border-top: 1px solid var(--line); padding-top: 12px; }
.card-meta b { color: var(--ink); }
.card-link { margin-top: 14px; font-size: 13px; color: var(--accent); font-weight: 600; }
.badge { display: inline-block; font-size: 11.5px; padding: 2px 9px; border-radius: 20px; white-space: nowrap; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-gap { background: var(--warn-bg); color: var(--warn); }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 22px; margin: 18px 0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 14px; }
.stat { border-left: 3px solid var(--accent); padding: 4px 0 4px 12px; }
.stat b { display: block; font-size: 21px; letter-spacing: -.02em; }
.stat span { font-size: 12px; color: var(--muted); }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 8px 14px; font-size: 13px; margin: 16px 0 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }
ul.shards { list-style: none; padding: 0; margin: 8px 0 0; font-size: 13px; }
ul.shards li { padding: 7px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
ul.shards li span { color: var(--muted); }
ul.index-list { list-style: none; padding: 0; }
ul.index-list li { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0;
  border-bottom: 1px solid var(--line); font-size: 14px; flex-wrap: wrap; }
ul.index-list span { color: var(--muted); font-size: 13px; }
.notes { font-size: 13.5px; color: var(--muted); background: var(--code-bg);
  border-radius: 8px; padding: 12px 14px; margin-top: 14px; }
.sample { border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 14px 0; background: var(--surface); }
.sample-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.ct { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  padding: 3px 9px; border-radius: 5px; background: var(--accent-soft); color: var(--accent); }
.ct-removed { background: #fbe9ec; color: #9c3547; }
.ct-amended { background: var(--warn-bg); color: var(--warn); }
.ct-reissued { background: #eee9fb; color: #63449b; }
.sample dl { display: grid; grid-template-columns: 175px 1fr; gap: 6px 14px; margin: 0; font-size: 12.5px; }
.sample dt { color: var(--muted); }
.sample dd { margin: 0; word-break: break-all; }
button.copy { margin-top: 14px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 7px; padding: 7px 14px; font-size: 12.5px; color: var(--accent); cursor: pointer; }
button.copy:hover { border-color: var(--accent); }
.muted { color: var(--muted); font-size: 13.5px; }
.err { color: #9c3547; background: #fbe9ec; padding: 12px 16px; border-radius: 8px; font-size: 13.5px; }
#ds-error { display: none; }
footer.site { border-top: 1px solid var(--line); padding: 22px 0 34px; color: var(--muted); font-size: 12.5px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
@media (max-width: 620px) {
  .sample dl, .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .sample dt, .kv dt { margin-top: 8px; }
  h1 { font-size: 25px; }
}