:root {
  --bg: #d9c4a0;
  --bg-2: #cbb489;
  --ink: #3b2a14;
  --muted: #6b5438;
  --dim: #8a7358;
  --line: #3b2a14;
  --stamp: #9a3b2a;
  --label: #f3e6c8;
  --label-2: #efe0c0;
  --ok: #2f5d32;
  --bad: #9a3b2a;
  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", ui-sans-serif, system-ui, sans-serif;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
  --page: min(42rem, calc(100vw - 2.5rem));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    repeating-linear-gradient(90deg, transparent 0 46px, rgba(59, 42, 20, 0.07) 46px 48px),
    repeating-linear-gradient(180deg, rgba(154, 59, 42, 0.05) 0 2px, transparent 2px 9px);
  font: 16px/1.75 var(--sans);
}
body::before,
body::after {
  content: "";
  position: fixed;
  top: 0; bottom: 0;
  width: 14px;
  background: repeating-linear-gradient(180deg, #b08958 0 28px, #9a7344 28px 30px);
  box-shadow: inset 0 0 0 1px rgba(59, 42, 20, 0.35);
  pointer-events: none;
  z-index: 15;
}
body::before { left: 0; }
body::after { right: 0; }
a { color: var(--stamp); text-underline-offset: 0.18em; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--stamp); outline-offset: 3px;
}
button, input, textarea, select { font: inherit; color: inherit; }
.skip {
  position: absolute; left: 22px; top: 12px; z-index: 20;
  padding: 8px 12px; background: var(--stamp); color: var(--label);
  transform: translateY(-160%);
}
.skip:focus { transform: none; }
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 4vw;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 4px solid var(--stamp);
  backdrop-filter: blur(12px);
}
.top a { color: var(--muted); text-decoration: none; font: 700 12px/1 var(--mono); letter-spacing: 0.08em; }
.top a:hover { color: var(--ink); }
.top strong { font: 700 14px/1 var(--serif); color: var(--ink); }
.rail {
  width: var(--page); margin: 0.8rem auto 0;
  display: flex; flex-wrap: wrap; gap: 8px 14px;
  font: 700 11px/1 var(--mono); letter-spacing: 0.06em;
}
.rail a { color: var(--dim); text-decoration: none; }
.rail a[aria-current] { color: var(--stamp); }
main { width: var(--page); margin: 0 auto; padding: 2.6rem 0 4.5rem; }
.kicker { margin: 0 0 12px; color: var(--stamp); font: 700 11px/1.4 var(--mono); letter-spacing: 0.12em; }
h1 { margin: 0 0 16px; font: 700 clamp(28px, 6vw, 44px)/1.2 var(--serif); letter-spacing: -0.03em; }
h2 { margin: 2.2rem 0 12px; font: 700 22px/1.3 var(--serif); }
p, li { color: var(--ink); }
p.lead { font-size: 17px; }
.path { list-style: none; padding: 0; margin: 2rem 0; }
.path li { border-top: 1px dashed var(--line); padding: 14px 0; display: grid; grid-template-columns: 4.5rem 1fr; gap: 12px; }
.path time { color: var(--stamp); font: 700 12px/1.6 var(--mono); }
.path a { color: var(--ink); font-weight: 700; text-decoration: none; }
.path a:hover { color: var(--stamp); }
.path small { display: block; color: var(--muted); font-weight: 400; margin-top: 4px; }
.ticket {
  position: relative; margin: 1.4rem 0; padding: 28px 24px;
  color: var(--ink); background: var(--label);
  border: 2px solid var(--ink);
}
.ticket::before {
  content: "装箱单";
  position: absolute; top: -10px; left: 14px;
  padding: 0 8px; background: var(--label);
  font: 700 11px/1 var(--mono); letter-spacing: 0.12em; color: var(--stamp);
}
.stamp {
  position: absolute; top: 22px; right: 16px; width: 78px; height: 78px;
  border: 3px solid var(--stamp); border-radius: 50%; color: var(--stamp);
  display: grid; place-items: center; font: 700 14px/1.15 var(--mono);
  transform: rotate(12deg); text-align: center;
  background: color-mix(in srgb, var(--label) 70%, transparent);
}
.stamp[hidden] { display: none; }
.choices, .inserts { display: grid; gap: 8px; margin: 16px 0; }
.choices button, .inserts button, .act {
  text-align: left; min-height: 46px; padding: 10px 14px;
  border: 1px solid var(--line); background: var(--label); color: var(--ink); cursor: pointer;
}
.choices button:hover, .act:hover, .inserts button:hover { background: var(--bg-2); }
.choices button.is-ok, .inserts button.is-ok { border-color: var(--ok); color: var(--ok); }
.choices button.is-bad, .inserts button.is-bad { border-color: var(--bad); color: var(--bad); }
button[disabled] { opacity: 0.45; cursor: not-allowed; }
button.is-picked { border-width: 2px; background: #ead7b0; }
.out {
  margin: 12px 0 0; padding: 12px 14px; background: var(--bg);
  border-left: 6px solid var(--stamp); color: var(--ink);
}
.out.is-ok { border-color: var(--ok); }
.out.is-bad { border-color: var(--bad); }
.out[hidden] { display: none; }
.world { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font: 13px/1.4 var(--mono); margin-top: 12px; }
.world span { display: block; color: var(--muted); font-size: 10px; letter-spacing: 0.08em; }
.world b { color: var(--ink); }
pre {
  overflow: auto; padding: 14px 16px; background: #3b2a14;
  border: 1px solid var(--line); font: 13px/1.5 var(--mono); color: var(--label);
}
label.block { display: grid; gap: 6px; margin: 12px 0; color: var(--ink); }
textarea, input[type=text] {
  padding: 10px; border: 1px solid var(--line); background: var(--label-2); color: var(--ink);
}
.catch {
  padding: 10px 12px; background: var(--bg); border-left: 4px solid var(--stamp); font-size: 15px;
}
.table-wrap { overflow-x: auto; }
.inventory {
  width: 100%; border-collapse: collapse; font: 13px/1.45 var(--mono); margin: 12px 0 16px;
}
.inventory th, .inventory td {
  border: 1px solid var(--ink); padding: 8px; text-align: left; vertical-align: top; background: var(--label-2);
}
.inventory th { background: #e4d3ae; font-weight: 700; }
.inventory select {
  width: 100%; min-height: 36px; background: var(--label); border: 1px solid var(--ink); padding: 4px;
}
.inventory tr.is-unknown td { background: #ead7b0; }
.inventory tr.is-conflict td { background: #e8c8b8; }
.inventory tr.is-ok td { background: #dce6c8; }
.paths { display: grid; gap: 14px; }
.path-card {
  padding: 14px; border: 1px dashed var(--ink); background: var(--label-2);
}
.path-card h3 { margin: 0 0 8px; font: 700 16px/1.3 var(--serif); }
.path-card p { margin: 0 0 10px; font-size: 15px; }
.path-card fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 6px; }
.path-card legend {
  padding: 0; margin-bottom: 6px; font: 700 11px/1.4 var(--mono); letter-spacing: 0.08em; color: var(--stamp);
}
.path-card label { cursor: pointer; display: flex; gap: 8px; align-items: flex-start; }
.path-card input { margin-top: 4px; accent-color: var(--stamp); }
.runbook { margin: 0 0 16px; padding: 0; list-style: none; font: 14px/1.5 var(--mono); }
.runbook li {
  display: grid; grid-template-columns: 4.5rem 1fr; gap: 10px;
  padding: 10px 8px; border-top: 1px dashed var(--ink);
}
.runbook li:first-child { border-top: 0; }
.runbook .t { color: var(--stamp); font-weight: 700; }
.runbook .hole {
  background: repeating-linear-gradient(-45deg, transparent, transparent 6px, rgba(154, 59, 42, 0.12) 6px, rgba(154, 59, 42, 0.12) 7px);
  outline: 2px dashed var(--stamp);
}
.runbook li.is-done { opacity: 0.72; }
.runbook li.is-now { background: #ead7b0; }
.clock-strip {
  display: flex; justify-content: space-between; gap: 12px;
  margin-bottom: 12px; font: 700 13px/1 var(--mono); letter-spacing: 0.06em;
}
.clock-strip b { color: var(--stamp); }
.books { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 12px 0 16px; }
.book { border: 1px solid var(--ink); padding: 14px; background: var(--label-2); font: 13px/1.5 var(--mono); }
.book h3 { margin: 0 0 8px; font: 700 14px/1 var(--mono); letter-spacing: 0.08em; }
.book dl { margin: 0; display: grid; gap: 6px; }
.book div { display: grid; grid-template-columns: 5.5rem 1fr; gap: 8px; }
.book dt { color: var(--muted); }
.book dd { margin: 0; font-weight: 700; }
.book.is-gap { outline: 2px solid var(--stamp); }
.status-picks, .exits { display: grid; gap: 8px; margin: 8px 0 14px; }
.status-picks label, .exits label {
  display: flex; gap: 8px; padding: 10px 12px;
  border: 1px solid var(--ink); background: var(--label-2); cursor: pointer;
}
.status-picks input, .exits input { accent-color: var(--stamp); margin-top: 4px; }
.foot {
  width: var(--page); margin: 0 auto; padding: 22px 0 48px;
  display: flex; justify-content: space-between; gap: 12px;
  border-top: 4px solid var(--stamp); color: var(--dim); font-size: 13px;
}
.foot a { font: 700 11px/1 var(--mono); letter-spacing: 0.08em; text-decoration: none; }
.next { margin-top: 2.4rem; }
@media (max-width: 720px) {
  :root { --page: calc(100vw - 2.2rem); }
  body::before, body::after { width: 8px; }
  .path li, .world, .books { grid-template-columns: 1fr; }
  .stamp { width: 64px; height: 64px; font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) { .stamp { transform: none; } }

.top.plain { display: flex; justify-content: space-between; align-items: center; }
.home { color: var(--muted); text-decoration: none; font: 700 12px/1 var(--mono); letter-spacing: 0.08em; }
.home:hover { color: var(--ink); }
.progress {
  width: var(--page); margin: 14px auto 0;
  display: flex; flex-wrap: wrap; gap: 8px 16px;
  font: 700 12px/1.4 var(--mono);
}
.progress a { color: var(--dim); text-decoration: none; }
.progress a[aria-current] { color: var(--stamp); }
.teach h2, .do h2 { margin: 2.2rem 0 12px; font: 700 22px/1.3 var(--serif); }
.teach p { color: var(--ink); }
.lede { margin: 0 0 18px; color: var(--muted); font-size: 17px; line-height: 1.8; }
.ex {
  margin: 18px 0; padding: 16px 18px;
  background: var(--label); border-left: 6px solid var(--stamp);
  color: var(--ink); font: 14px/1.6 var(--mono);
}
.ex ol { margin: 8px 0 0; padding-left: 1.2rem; }
.ex li { margin: 6px 0; color: var(--muted); }
.leave { color: var(--muted); }
.hero-links { display: flex; flex-wrap: wrap; gap: 18px 28px; margin: 28px 0 0; }
.foot strong { color: var(--ink); margin-right: 12px; }