:root {
  --bg: #f7f5f0; --surface: #ffffff; --ink: #1c1b19; --muted: #6b675f; --line: #e3dfd6;
  --accent: #1f4e79; --accent-ink: #ffffff; --accent-soft: #e6eef6;
  --good: #23704a; --good-soft: #e3f1e9; --warn: #8a5a00; --warn-soft: #fbf0d9; --bad: #a02c2c; --bad-soft: #f8e4e4;
  --radius: 10px; --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161513; --surface: #1f1e1b; --ink: #ece9e2; --muted: #a09b90; --line: #34322d;
    --accent: #7fb2e0; --accent-ink: #10202e; --accent-soft: #223244;
    --good: #6cc394; --good-soft: #1d3327; --warn: #e0b45c; --warn-soft: #3a2f17; --bad: #e58a8a; --bad-soft: #3d2020; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 var(--sans); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.25; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.num { font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }

.top { border-bottom: 1px solid var(--line); background: var(--surface); position: sticky; top: 0; z-index: 5; }
.top .wrap { display: flex; align-items: center; gap: 20px; height: 58px; }
.brand { font-family: var(--serif); font-weight: 700; font-size: 1.15rem; color: var(--ink); }
.brand span { color: var(--accent); }
.nav { display: flex; gap: 18px; margin-left: auto; align-items: center; flex-wrap: wrap; }
.nav a { color: var(--muted); font-size: .95rem; }
.nav a.on, .nav a:hover { color: var(--ink); text-decoration: none; }
.pill { background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 2px 12px; font-size: .875rem; font-weight: 600; }

.btn { display: inline-block; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); border-radius: 8px;
  padding: 10px 20px; font: 600 1rem var(--sans); cursor: pointer; text-align: center; }
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.danger { background: transparent; border-color: var(--bad); color: var(--bad); }
.btn.sm { padding: 6px 14px; font-size: .9rem; }
.btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, .choice:focus-within {
  outline: 2px solid var(--accent); outline-offset: 2px; }

.hero { padding: 72px 0 56px; }
.hero p.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
section.band { padding: 56px 0; border-top: 1px solid var(--line); }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.steps li { counter-increment: step; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 18px 18px 56px; position: relative; }
.steps li::before { content: counter(step); position: absolute; left: 16px; top: 16px; width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; display: grid; place-items: center; font-size: .9rem; }
.price { font-family: var(--serif); font-size: 2rem; font-weight: 700; }
.price small { font: 400 .9rem var(--sans); color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .85rem; }
td.r, th.r { text-align: right; }
.scroll { overflow-x: auto; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; color: var(--muted); }
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9rem; }

main.app { padding: 32px 0 64px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.stack { display: grid; gap: 16px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: .95rem; }
input[type=text], input[type=email], input[type=password], textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); font: inherit; }
textarea { min-height: 150px; resize: vertical; }
.choices { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.choice { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; background: var(--surface); cursor: pointer; display: block; font-weight: 400; margin: 0; }
.choice input { position: absolute; opacity: 0; }
.choice.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); background: var(--accent-soft); }
.choice b { display: block; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 5px; }
.msg { border-radius: 8px; padding: 10px 14px; font-size: .95rem; }
.msg.err { background: var(--bad-soft); color: var(--bad); }
.msg.ok { background: var(--good-soft); color: var(--good); }
.msg.info { background: var(--accent-soft); color: var(--accent); }
.tag { display: inline-block; border-radius: 999px; padding: 1px 10px; font-size: .8rem; font-weight: 600; background: var(--line); color: var(--muted); white-space: nowrap; }
.tag.running, .tag.queued { background: var(--accent-soft); color: var(--accent); }
.tag.done, .tag.paid { background: var(--good-soft); color: var(--good); }
.tag.failed { background: var(--bad-soft); color: var(--bad); }
.tag.canceled, .tag.pending { background: var(--warn-soft); color: var(--warn); }
.plist { display: grid; gap: 12px; }
.pitem { display: flex; gap: 14px; align-items: center; justify-content: space-between; color: var(--ink); }
.pitem:hover { border-color: var(--accent); text-decoration: none; }
.pitem .t { font-weight: 600; overflow-wrap: anywhere; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.timeline li { display: flex; gap: 12px; align-items: center; padding: 8px 0; color: var(--muted); }
.timeline .dot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line); flex: none; }
.timeline li.done { color: var(--ink); }
.timeline li.done .dot { background: var(--good); border-color: var(--good); }
.timeline li.running { color: var(--ink); font-weight: 600; }
.timeline li.running .dot { border-color: var(--accent); background: var(--accent); animation: pulse 1.4s ease-in-out infinite; }
.timeline li.failed .dot { background: var(--bad); border-color: var(--bad); }
.timeline li.canceled .dot { background: var(--warn); border-color: var(--warn); }
@keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { .timeline li.running .dot { animation: none; } }
.cols { display: grid; gap: 18px; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); align-items: start; }
@media (max-width: 760px) { .cols { grid-template-columns: 1fr; } .nav { gap: 12px; } }
.log { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; height: 420px; overflow-y: auto;
  font: .85rem/1.55 var(--mono); }
.log div { padding: 2px 0; overflow-wrap: anywhere; white-space: pre-wrap; }
.log .agent { color: var(--muted); }
.log .success { color: var(--good); }
.log .warn { color: var(--warn); }
.log .error { color: var(--bad); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font-size: .95rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.stat b { display: block; font-size: 1.5rem; font-family: var(--serif); }
.prose h2 { margin-top: 1.6em; }
.prose li { margin-bottom: .4em; }
.mt { margin-top: 28px; }
.nav a.btn, .nav a.btn:hover { color: var(--accent-ink); }
@media (max-width: 600px) {
  .top .wrap { height: auto; min-height: 58px; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; gap: 6px 16px; }
  .nav { margin-left: 0; width: 100%; justify-content: space-between; }
  .nav a { font-size: .9rem; }
  .log { height: 320px; }
}