:root {
  --bg: #fbfcff;
  --grid: #d9e4f7;
  --ink: #1b3a86;
  --ink-soft: #4a5f95;
  --yolk: #f5b700;
  --tomato: #d93a2b;
  --basil: #3b7a39;
  --card: #ffffff;
  --sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --hand: "Xingkai SC", "STXingkai", "KaiTi", "STKaiti", cursive;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1a33;
    --grid: #1c2c52;
    --ink: #dfe7fb;
    --ink-soft: #a7b6dc;
    --yolk: #ffc93b;
    --tomato: #ff6b5b;
    --basil: #79c46f;
    --card: #16244a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  font: 16px/1.75 var(--sans);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
}
a { color: inherit; }
:focus-visible { outline: 3px solid var(--yolk); outline-offset: 3px; }
.sheet { max-width: 1000px; margin: 0 auto; padding: 0 20px; }

.head { display: flex; gap: 24px; align-items: center; padding: 48px 0 32px; }
.stamp {
  flex: none;
  width: 104px; height: 104px; border-radius: 50%;
  border: 4px double var(--tomato); color: var(--tomato);
  display: grid; place-content: center; text-align: center;
  font: 800 2.4rem/1 var(--sans); transform: rotate(-10deg);
}
.stamp span { font-size: .9rem; font-weight: 700; }
.site-name {
  text-wrap: balance; margin: 0; font-size: clamp(1.8rem, 6vw, 3.4rem); line-height: 1.2; font-weight: 900; letter-spacing: .02em; }
.lede { margin: 8px 0 0; color: var(--ink-soft); max-width: 30em; }

.lab {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: center;
  padding: 16px 0 56px;
  overflow: hidden;
}
.wheel-wrap { position: relative; width: min(100%, 400px); margin: 0 auto; aspect-ratio: 1; }
#wheel { width: 100%; height: 100%; display: block; transition: transform 3.6s cubic-bezier(.17,.67,.12,1); }
#wheel text { font: 700 11px var(--sans); fill: #1b1b1b; }
.pointer {
  position: absolute; top: -6px; left: 50%; transform: translateX(-50%); z-index: 2;
  width: 0; height: 0; border-left: 14px solid transparent; border-right: 14px solid transparent;
  border-top: 26px solid var(--tomato);
}
.hub {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 26%; aspect-ratio: 1; border-radius: 50%;
  border: 4px solid var(--bg); background: var(--tomato); color: #fff;
  font: 800 1.5rem var(--sans); cursor: pointer;
  box-shadow: 0 4px 0 rgba(0,0,0,.25);
}
.hub:active { transform: translate(-50%, -46%); box-shadow: 0 1px 0 rgba(0,0,0,.25); }
.hub:disabled { cursor: progress; opacity: .85; }

h2 { font-size: 1.6rem; margin: 0 0 10px; line-height: 1.3; }
.hint { color: var(--ink-soft); margin: 0 0 16px; }
.card {
  background: var(--card); border: 2px solid var(--ink); border-radius: 4px;
  padding: 18px 20px; box-shadow: 6px 6px 0 var(--yolk);
}
.card .topic { margin: 0; font-family: var(--hand); color: var(--tomato); font-size: 1.3rem; }
.card h3 { margin: 2px 0 10px; font-size: 1.3rem; line-height: 1.45; }
.card dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 0; }
.card dt { font-weight: 700; color: var(--basil); }
.card dd { margin: 0; }

.log { padding-bottom: 48px; }
.entries { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.entries li { background: var(--card); padding: 18px 20px; border-top: 6px solid var(--yolk); }
.entries li:nth-child(2n) { border-top-color: var(--basil); }
.no { margin: 0; font-family: var(--hand); font-size: 1.25rem; color: var(--tomato); }
.entries h3 { margin: 0 0 8px; font-size: 1.15rem; line-height: 1.45; }
.entries p { margin: 0 0 10px; }
.vars { display: flex; flex-wrap: wrap; gap: 6px; }
.vars span { font-size: .82rem; padding: 1px 10px; border: 1px solid var(--ink-soft); border-radius: 999px; color: var(--ink-soft); }
.verdict { font-weight: 700; background: linear-gradient(transparent 60%, color-mix(in srgb, var(--yolk) 45%, transparent) 60%); display: inline; }

.foot { border-top: 2px solid var(--ink); padding: 18px 0 32px; color: var(--ink-soft); font-size: .9rem; }
.foot p { margin: 2px 0; }

@media (max-width: 760px) {
  .lab { grid-template-columns: 1fr; }
  .entries { grid-template-columns: 1fr; }
  .head { flex-direction: column; align-items: flex-start; gap: 12px; padding-top: 32px; }
  .stamp { width: 80px; height: 80px; font-size: 1.9rem; }
}
@media (prefers-reduced-motion: reduce) {
  #wheel { transition: none; }
}