/* cccodroid.net —— 与应用同一套暖色；跟随系统深浅色 */
:root {
  --bg: #f5f2ec; --fg: #2b2a27; --muted: #77736b; --card: #fffdf9; --line: #e4ddd1;
  --accent: #c96442; --accent-fg: #fff; --code: #efe9df;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1f1e1c; --fg: #e9e5dd; --muted: #a29d93; --card: #282725; --line: #3a3835; --accent: #d97757; --code: #2f2d2a; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg); line-height: 1.7;
  font-family: system-ui, -apple-system, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent); }
code, pre { font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace; font-size: .9em; }
.wrap { max-width: 60rem; margin: 0 auto; padding: 0 1.25rem; }
.wrap.wide { max-width: 72rem; }

.top { border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 5; }
.top .wrap { display: flex; align-items: center; gap: 1rem; min-height: 3.5rem; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.15rem; color: var(--fg); text-decoration: none; }
.brand img { border-radius: 6px; }
.top nav { display: flex; gap: .25rem 1rem; flex-wrap: wrap; flex: 1; }
.top nav a { color: var(--muted); text-decoration: none; padding: .2rem 0; }
.top nav a:hover, .top nav a[aria-current] { color: var(--fg); }
.top nav a[aria-current] { border-bottom: 2px solid var(--accent); }
.lang { font-size: .9rem; color: var(--muted); text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: .1rem .7rem; }

main { padding: 2rem 0 3rem; }
h1 { line-height: 1.3; }
.hero { text-align: center; padding: 2.5rem 0 1.5rem; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); margin: 0 0 .75rem; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40rem; margin: 0 auto 1.5rem; }
.cta { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
main > .cta { justify-content: flex-start; }
.btn {
  display: inline-flex; align-items: baseline; gap: .5rem; padding: .7rem 1.4rem; border-radius: 10px;
  border: 1px solid var(--line); background: var(--card); color: var(--fg); text-decoration: none; font-weight: 600;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn small { font-weight: 400; opacity: .85; }
.req { color: var(--muted); font-size: .9rem; margin-top: 1rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; margin: 2rem 0; }
.card, .comp { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.25rem; }
.card h3, .comp h3 { margin: 0 0 .4rem; font-size: 1.05rem; }
.card p, .comp p { margin: 0; color: var(--muted); }
.comp .meta { font-size: .85rem; margin-bottom: .4rem; }
.comps { display: grid; grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.steps ol { padding-left: 1.4rem; }
.note { color: var(--muted); font-size: .95rem; border-left: 3px solid var(--line); padding-left: 1rem; margin-top: 2rem; }
.tag { font-size: .75rem; background: var(--code); color: var(--muted); border-radius: 4px; padding: 0 .4rem; }
.mono-line code { background: var(--code); padding: .1rem .4rem; border-radius: 4px; word-break: break-all; }

table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .95rem; }
th, td { border-bottom: 1px solid var(--line); padding: .5rem .6rem; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.rel { display: block; overflow-x: auto; }
.hash { font-size: .75rem; word-break: break-all; color: var(--muted); }

.doc { display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: 2.5rem; align-items: start; }
.toc { position: sticky; top: 4.5rem; display: flex; flex-direction: column; gap: .3rem; font-size: .9rem; max-height: calc(100vh - 6rem); overflow-y: auto; }
.toc b { margin-bottom: .3rem; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--accent); }
@media (max-width: 52rem) { .doc { grid-template-columns: minmax(0, 1fr); } .toc { position: static; max-height: none; border-bottom: 1px solid var(--line); padding-bottom: 1rem; } }
.md h1 { margin-top: 0; }
.md h2 { margin-top: 2.2rem; padding-top: .5rem; border-top: 1px solid var(--line); }
.md h2, .md h3 { scroll-margin-top: 4.5rem; }
.md code { background: var(--code); padding: .1rem .35rem; border-radius: 4px; }
.md pre { background: var(--code); padding: 1rem; border-radius: 8px; overflow-x: auto; }
.md pre code { background: none; padding: 0; }
.md blockquote { margin: 1rem 0; padding: .2rem 1rem; border-left: 3px solid var(--accent); color: var(--muted); }
.md table { display: block; overflow-x: auto; }
.src { font-size: .85rem; color: var(--muted); margin-top: 3rem; }

.foot { color: var(--muted); font-size: .85rem; padding-top: 1.5rem; padding-bottom: 2rem; border-top: 1px solid var(--line); }