/* ip.20260401.xyz — Claude Docs 暖米白主题（克制、出版物质感）*/
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,500;8..60,600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --c-bg: #FAF9F6;
  --c-ink: #34302A;
  --c-ink-soft: #6F685F;
  --c-mute: #928A80;
  --c-line: #E8E1D6;
  --c-line-soft: #EFEAE0;
  --c-card: #FFFFFF;
  --c-surface-muted: #F0EEE9;

  --c-accent: #D16A4B;
  --c-accent-soft: #F4E8DC;
  --c-accent-ink: #A94F2B;

  --c-ok: #3D7A5A;   --c-ok-bg: #DFEEE4;
  --c-warn: #B97A1F; --c-warn-bg: #FAECD4;
  --c-bad: #B13E35;  --c-bad-bg: #F7DCD6;
  --c-info: #3A679C; --c-info-bg: #E4ECF6;

  --f-sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --f-serif: "Source Serif 4", Georgia, "Songti SC", serif;
  --f-mono: "JetBrains Mono", "SF Mono", Consolas, ui-monospace, monospace;

  --radius: 8px;
  --radius-lg: 12px;
  --topbar-h: 56px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern", "liga";
  min-height: 100vh;
}
code, .mono, .ip-value { font-family: var(--f-mono); }
a { color: var(--c-accent); text-decoration: none; }
a:hover { color: var(--c-accent-ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
b, strong { font-weight: 600; color: var(--c-ink); }
small { color: var(--c-ink-soft); }

/* topbar */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 24px;
  height: var(--topbar-h);
  padding: 0 24px;
  background: rgba(250, 249, 246, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14px; }
.logo-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); }
.top-nav { display: flex; gap: 18px; margin-left: auto; }
.top-nav a { color: var(--c-ink-soft); font-size: 13px; }
.top-nav a:hover { color: var(--c-accent); text-decoration: none; }

.btn-ghost, .btn-primary {
  border: 1px solid var(--c-line);
  background: var(--c-card);
  color: var(--c-ink);
  padding: 7px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}
.btn-ghost:hover { border-color: var(--c-accent); color: var(--c-accent); }
.btn-primary {
  background: var(--c-accent); color: #fff; border-color: var(--c-accent);
}
.btn-primary:hover { background: var(--c-accent-ink); border-color: var(--c-accent-ink); }

/* main */
main { max-width: 1180px; margin: 0 auto; padding: 32px 24px 64px; }

/* hero */
.hero { text-align: left; padding: 24px 0 32px; max-width: 760px; }
.hero h1 {
  font-family: var(--f-serif);
  font-size: 40px;
  font-weight: 500;
  margin: 0 0 12px;
  line-height: 1.2;
  letter-spacing: -.01em;
}
.hero h1 em { font-style: normal; color: var(--c-accent); }
.hero .subtitle { color: var(--c-ink-soft); font-size: 16px; margin: 0; }

/* sections */
.section { margin: 36px 0; }
.section-h {
  display: flex; align-items: baseline; gap: 12px;
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-line);
}
.section-h h2 {
  font-family: var(--f-serif);
  font-size: 22px;
  font-weight: 500;
  margin: 0;
  letter-spacing: -.005em;
}
.section-sub { color: var(--c-mute); font-size: 13px; }
.section-tag {
  font-size: 11px; padding: 2px 8px;
  border-radius: 4px;
  background: var(--c-accent-soft);
  color: var(--c-accent-ink);
  font-weight: 600;
  font-family: var(--f-mono);
}

/* grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid-2 { display: grid; grid-template-columns: 1fr 2fr; gap: 14px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

/* card */
.card {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  transition: border-color .15s;
}
.card:hover { border-color: var(--c-line-soft); }
.card-h {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--c-line);
}
.card-title {
  font-size: 12px;
  color: var(--c-ink-soft);
  letter-spacing: .06em;
  text-transform: uppercase;
  font-weight: 600;
}
.tag {
  display: inline-flex; align-items: center;
  padding: 2px 7px;
  font-size: 11px; font-weight: 700;
  border-radius: 4px;
  background: var(--c-surface-muted);
  color: var(--c-ink-soft);
  font-family: var(--f-mono);
}
.tag-accent { background: var(--c-accent-soft); color: var(--c-accent-ink); }
.tag-info   { background: var(--c-info-bg);   color: var(--c-info); }
.tag-ok     { background: var(--c-ok-bg);     color: var(--c-ok); }

/* IP card */
.ip-card .ip-value {
  font-size: 22px;
  font-weight: 600;
  font-family: var(--f-mono);
  color: var(--c-ink);
  word-break: break-all;
  margin: 6px 0 8px;
}
.ip-card .ip-value.bad { color: var(--c-bad); }
.ip-meta { display: flex; gap: 8px; align-items: center; color: var(--c-ink); font-size: 13px; }
.ip-sub { color: var(--c-mute); font-size: 12px; margin-top: 6px; line-height: 1.5; }

/* score ring */
.score-card { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.score-ring { position: relative; width: 130px; height: 130px; margin: 4px 0; }
.ring-svg { width: 100%; height: 100%; }
.ring-center {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
}
.ring-num { font-size: 34px; font-weight: 600; font-family: var(--f-mono); color: var(--c-ink); }
.ring-label { font-size: 11px; color: var(--c-ink-soft); letter-spacing: .08em; text-transform: uppercase; }

/* kv list */
.kv-list { display: flex; flex-direction: column; }
.kv-list > div {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--c-line-soft);
  font-size: 13px;
}
.kv-list > div:last-child { border-bottom: none; }
.kv-list span:first-child { color: var(--c-ink-soft); }
.kv-list b { font-weight: 500; color: var(--c-ink); text-align: right; word-break: break-word; }

/* pills */
.pill { padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; display: inline-block; }
.pill-ok   { background: var(--c-ok-bg);   color: var(--c-ok); }
.pill-warn { background: var(--c-warn-bg); color: var(--c-warn); }
.pill-bad  { background: var(--c-bad-bg);  color: var(--c-bad); }
.pill-info { background: var(--c-info-bg); color: var(--c-info); }

/* consistency banner */
.banner {
  margin: 10px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  border: 1px solid;
}
.banner-ok   { background: var(--c-ok-bg);   color: var(--c-ok);   border-color: #c7ddd0; }
.banner-warn { background: var(--c-warn-bg); color: var(--c-warn); border-color: #ebd5a7; }
.banner-bad  { background: var(--c-bad-bg);  color: var(--c-bad);  border-color: #ecc1bb; }

/* map */
.map-card { padding: 14px; }
#map-svg { width: 100%; height: auto; display: block; background: #F4EFE3; border-radius: var(--radius); }
#map-base path { fill: #C9BBA0; stroke: #94855F; stroke-width: .6; }
.map-legend {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  margin-top: 10px; color: var(--c-ink-soft); font-size: 12px;
}
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; vertical-align: middle; margin-right: 4px; }
.dot-cn { background: #c4302b; }
.dot-intl { background: var(--c-info); }
.dot-cf { background: var(--c-accent); }
.dot-host { background: var(--c-ok); }
.dot-srflx { background: var(--c-info); }
.dot-relay { background: var(--c-accent); }

/* webrtc exposure cards */
.webrtc-card { display: flex; flex-direction: column; gap: 10px; }
.webrtc-card .card-h { justify-content: space-between; }
.cand-count {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--c-ink);
  background: var(--c-surface-muted);
  padding: 2px 10px;
  border-radius: 999px;
}
.cand-explain { font-size: 13px; color: var(--c-ink-soft); margin: 0; line-height: 1.6; }
.cand-explain code {
  font-family: var(--f-mono); font-size: 12px;
  background: var(--c-code-inline-bg, #F1EDE7);
  padding: 1px 5px; border-radius: 3px;
}
.cand-list { list-style: none; padding: 0; margin: 4px 0 0; display: flex; flex-direction: column; gap: 6px; }
.cand-list li {
  font-family: var(--f-mono); font-size: 12px;
  padding: 8px 10px;
  background: var(--c-surface-muted);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-ok);
  word-break: break-all;
}
.cand-list li.cand-srflx { border-left-color: var(--c-warn); }
.cand-list li.cand-relay { border-left-color: var(--c-accent); }
.cand-list li small { display: block; color: var(--c-mute); margin-top: 2px; }
.cand-list li.empty {
  background: transparent;
  border: 1px dashed var(--c-line);
  border-left: 1px dashed var(--c-line);
  color: var(--c-mute);
  text-align: center;
  font-family: var(--f-sans);
  font-size: 12px;
}
.cand-verdict {
  margin-top: auto;
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  line-height: 1.55;
}
.cand-verdict.v-ok   { background: var(--c-ok-bg);   color: var(--c-ok);   border: 1px solid #c7ddd0; }
.cand-verdict.v-warn { background: var(--c-warn-bg); color: var(--c-warn); border: 1px solid #ebd5a7; }
.cand-verdict.v-bad  { background: var(--c-bad-bg);  color: var(--c-bad);  border: 1px solid #ecc1bb; }
.cand-verdict.v-info { background: var(--c-info-bg); color: var(--c-info); border: 1px solid #c6d3e6; }

/* probe list (AI / network) */
.probe-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.probe-list li {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--c-surface-muted);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-mute);
  font-size: 13px;
}
.probe-list li[data-state="ok"]   { border-left-color: var(--c-ok); }
.probe-list li[data-state="warn"] { border-left-color: var(--c-warn); }
.probe-list li[data-state="bad"]  { border-left-color: var(--c-bad); }

/* latency list */
.latency-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.latency-list li {
  display: grid; grid-template-columns: 110px 1fr 60px; align-items: center; gap: 12px;
  padding: 6px 4px;
  font-size: 13px;
}
.latency-bar {
  position: relative; height: 6px;
  background: var(--c-surface-muted);
  border-radius: 3px; overflow: hidden;
}
.latency-bar i {
  display: block; height: 100%;
  width: var(--lat, 0%);
  background: var(--lat-color, var(--c-ok));
  border-radius: 3px;
  transition: width .4s ease;
}
.latency-list li b { text-align: right; font-family: var(--f-mono); font-size: 12px; }

/* speedtest */
.speedtest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-top: 8px; }
.speed-item { text-align: center; padding: 12px; background: var(--c-surface-muted); border-radius: var(--radius); }
.speed-num { font-size: 28px; font-weight: 600; font-family: var(--f-mono); color: var(--c-accent); margin: 4px 0; }
.speed-unit { font-size: 11px; color: var(--c-ink-soft); }
.speed-label { font-size: 12px; color: var(--c-ink-soft); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }

/* fingerprint */
.fp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; font-size: 13px; }
.fp-grid > div { padding: 6px 0; border-bottom: 1px solid var(--c-line-soft); display: flex; justify-content: space-between; gap: 8px; }
.fp-grid span { color: var(--c-ink-soft); }
.fp-grid b { font-family: var(--f-mono); font-size: 12px; text-align: right; word-break: break-all; }

/* headers list */
.headers-list { list-style: none; padding: 0; margin: 0; font-family: var(--f-mono); font-size: 12px; }
.headers-list li { padding: 4px 0; border-bottom: 1px solid var(--c-line-soft); display: flex; gap: 12px; }
.headers-list li span { color: var(--c-accent-ink); min-width: 160px; }

/* share */
.share-card { display: flex; flex-direction: column; gap: 12px; }
.share-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.switch { display: flex; align-items: center; gap: 6px; color: var(--c-ink-soft); font-size: 13px; cursor: pointer; }
#share-canvas {
  width: 100%; height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
  background: var(--c-card);
  max-width: 100%;
}

/* hint / note */
.hint { color: var(--c-mute); font-size: 12px; margin: 8px 0 0; line-height: 1.55; }
.note {
  margin: 10px 0;
  padding: 10px 14px;
  background: var(--c-info-bg);
  border-left: 3px solid var(--c-info);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--c-info);
  font-size: 13px;
}

/* footer */
.footer {
  max-width: 1180px; margin: 32px auto 0; padding: 24px;
  border-top: 1px solid var(--c-line);
  color: var(--c-ink-soft); font-size: 13px; text-align: center;
}
.footer .copy { margin: 8px 0 0; font-size: 12px; color: var(--c-mute); }

/* responsive */
@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .speedtest-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .topbar { padding: 0 16px; gap: 12px; }
  .top-nav { display: none; }
  .hero h1 { font-size: 30px; }
  main { padding: 16px 12px 48px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .fp-grid { grid-template-columns: 1fr; }
  .ip-value { font-size: 18px; }
  .latency-list li { grid-template-columns: 80px 1fr 50px; gap: 8px; font-size: 12px; }
}