:root {
  --paper: #f3f0e8;
  --ink: #1c1915;
  --muted: #5e584e;
  --line: #ddd4c4;
  --card: #fffdf8;
  --green: #1f6b45;
  --green-soft: #e5f2ea;
  --amber: #8a5a12;
  --amber-soft: #f8efd8;
  --bad: #8c2f2f;
  --bad-soft: #f8e6e4;
  --unknown: #5c6570;
  --shadow: 0 1px 0 rgba(28, 25, 21, 0.04);
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--green); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #144a30; }
h1, h2, h3 { line-height: 1.25; font-weight: 650; letter-spacing: -0.02em; }
p { margin: 0 0 0.9rem; }

.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0 14px; border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1.05rem; }
.brand small { display: block; font-weight: 450; color: var(--muted); font-size: 0.75rem; letter-spacing: 0; }
.nav { display: flex; gap: 18px; }
.nav a { color: var(--ink); text-decoration: none; }
.nav a:hover { color: var(--green); }

.snap-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.snap-cols h2 { font-size: 1.15rem; margin: 0 0 10px; }
.snaps { display: grid; gap: 8px; }
.snap {
  display: grid;
  grid-template-columns: 3.4rem 1fr auto;
  gap: 12px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  color: inherit;
  text-decoration: none;
}
.snap b { font-size: 1.55rem; letter-spacing: -0.03em; line-height: 1; }
.snap b.pass { color: var(--green); }
.snap b.partial { color: var(--amber); }
.snap b.fail { color: var(--bad); }
.snap .meta, .snap .side { display: flex; flex-direction: column; min-width: 0; }
.snap .host { font-weight: 650; }
.snap .url, .note .url { color: var(--muted); font-size: 0.88rem; word-break: break-all; }
.snap .side { align-items: flex-end; gap: 4px; }
.snap time { color: var(--muted); font-size: 0.85rem; }

.hero { padding: 48px 0 20px; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.1rem); margin: 0 0 12px; max-width: 16em; }
.lede { font-size: 1.12rem; color: var(--muted); max-width: 38em; }

form.audit {
  display: flex; gap: 8px; margin: 22px 0 8px; max-width: 720px;
}
form.audit input[type="url"] {
  flex: 1; border: 1px solid #cfc4b0; background: white; color: var(--ink);
  border-radius: 10px; padding: 14px 16px; font: inherit; min-width: 0;
}
form.audit button, .btn {
  border: 0; background: var(--ink); color: #f6f1e6; border-radius: 10px;
  padding: 14px 18px; font: inherit; cursor: pointer; white-space: nowrap;
}
form.audit button:disabled { opacity: 0.6; cursor: wait; }
.err { color: var(--bad); min-height: 1.4em; }
.note { color: var(--muted); font-size: 0.92rem; }

.quick-audit {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px 6px;
  margin: 0 0 22px;
  box-shadow: var(--shadow);
}
.quick-audit .quick-label {
  margin: 0;
  font-weight: 650;
  font-size: 0.95rem;
}
.quick-audit form.audit {
  margin: 10px 0 4px;
  max-width: none;
}
.quick-audit form.audit input[type="url"],
.quick-audit form.audit button {
  padding: 11px 14px;
}
.quick-audit .err { min-height: 1.1em; margin: 0; }

.backtop {
  margin: 8px 0 4px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.backtop a {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
}
.backtop a:hover { color: var(--green); border-color: var(--green); }

.banner {
  background: var(--amber-soft); border: 1px solid #ead7a8; color: #5c4010;
  border-radius: 10px; padding: 10px 14px; margin: 18px 0 0; font-size: 0.92rem;
}

.axes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 28px 0 10px; }
.axis, .card, .panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: 16px 16px 14px;
}
.axis b { display: block; font-size: 1.7rem; letter-spacing: -0.03em; }
.axis span, .muted { color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding-bottom: 20px; }
.card h3 { margin: 0 0 8px; font-size: 1.08rem; }
.card a.title { color: var(--ink); text-decoration: none; }
.card a.title:hover { color: var(--green); }

.page { padding: 28px 0 48px; }
.page h1 { margin-top: 0; }
.prose { max-width: 42rem; }
.prose h2 { margin: 1.6rem 0 0.6rem; font-size: 1.28rem; }
.prose ul { padding-left: 1.2rem; }
.prose table { width: 100%; border-collapse: collapse; margin: 0.6rem 0 1rem; font-size: 0.95rem; }
.prose th, .prose td, .grid th, .grid td { border-bottom: 1px solid var(--line); text-align: left; padding: 8px 10px 8px 0; vertical-align: top; }
.prose th:nth-child(1), .prose td:nth-child(1),
.prose th:nth-child(2), .prose td:nth-child(2) { white-space: nowrap; }
.prose th { color: var(--muted); font-weight: 600; }

.report-head { display: grid; grid-template-columns: 180px 1fr; gap: 28px; align-items: center; margin-bottom: 22px; }
.dial {
  width: 168px; height: 168px; border-radius: 50%;
  display: grid; place-items: center;
  background: conic-gradient(var(--green) calc(var(--p) * 1%), #e6dccb 0);
}
.dial.fair { background: conic-gradient(#8a5a12 calc(var(--p) * 1%), #e6dccb 0); }
.dial.poor { background: conic-gradient(var(--bad) calc(var(--p) * 1%), #e6dccb 0); }
.dial .inner {
  width: 124px; height: 124px; border-radius: 50%; background: var(--card);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.dial strong { font-size: 2.6rem; letter-spacing: -0.04em; line-height: 1; }
.dial span { color: var(--muted); }

.bars { display: grid; gap: 10px; }
.bar { display: grid; grid-template-columns: 7.2em 1fr 3.2em; gap: 8px; align-items: center; font-size: 0.95rem; }
.track { height: 8px; background: #ebe3d4; border-radius: 99px; overflow: hidden; }
.track i { display: block; height: 100%; background: var(--green); border-radius: 99px; }

.tag { display: inline-block; border-radius: 99px; padding: 1px 8px; font-size: 0.78rem; font-weight: 650; }
.tag.pass { background: var(--green-soft); color: var(--green); }
.tag.partial { background: var(--amber-soft); color: var(--amber); }
.tag.fail { background: var(--bad-soft); color: var(--bad); }
.tag.unknown { background: #eceff2; color: var(--unknown); }
.tag.p0 { background: var(--bad-soft); color: var(--bad); }
.tag.p1 { background: #fde8d4; color: #8a3d12; }
.tag.p2 { background: var(--amber-soft); color: var(--amber); }
.tag.p3 { background: #eceff2; color: var(--unknown); }

.grid { width: 100%; border-collapse: collapse; }
.grid th:first-child, .grid td:first-child { white-space: nowrap; width: 1%; }
.grid td.ev { color: var(--muted); font-size: 0.9rem; }
.section { margin: 26px 0; }
.section h2 { font-size: 1.25rem; margin-bottom: 8px; }
.plats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.plat { padding: 12px 14px; }
.plat b { display: block; }
.warnbox { background: var(--bad-soft); border-radius: 12px; padding: 12px 14px; }

footer.site {
  border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem;
  padding: 22px 0 40px;
}

.wait { padding: 12px 0 28px; }
.pulse { width: 10px; height: 10px; border-radius: 50%; background: var(--green); display: inline-block; margin-right: 8px; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0.25; } }

@media (max-width: 800px) {
  .axes, .cards, .plats, .report-head, .snap-cols { grid-template-columns: 1fr; }
  .snap { grid-template-columns: 3rem 1fr; }
  .snap .side { grid-column: 2; align-items: flex-start; }
  form.audit { flex-direction: column; }
  .hero { padding-top: 28px; }
}