:root {
  color-scheme: light;
  --paper: #eee5d7;
  --ink: #30283c;
  --muted: #6e627a;
  --plum: #493858;
  --purple: #7d6697;
  --line: #c7b9cb;
  --mono: "Courier New", "Microsoft YaHei", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #292032;
  color: var(--ink);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-underline-offset: 4px; }
a:hover { color: #71528d; }
a:focus-visible { outline: 3px solid #9d7cbb; outline-offset: 5px; }
.skip {
  position: absolute;
  top: -70px;
  left: 16px;
  padding: 8px 16px;
  background: var(--paper);
  z-index: 10;
}
.skip:focus { top: 12px; }
.topbar {
  max-width: 1100px;
  margin: auto;
  min-height: 88px;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: #e8dced;
  font-family: var(--mono);
  font-size: 13px;
}
.topbar a { text-decoration: none; }
.wordmark { font-weight: 700; font-size: 16px; letter-spacing: .05em; }
.topbar nav { display: flex; gap: 22px; }
.topbar a:hover { color: #fff4df; }
.paper {
  max-width: 1052px;
  margin: 0 auto 44px;
  background: var(--paper);
  border-top: 6px solid #ad91bf;
  box-shadow: 0 20px 65px #110d1759;
}
.hero { padding: 54px 64px 42px; border-bottom: 1px solid var(--line); }
.eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  color: var(--purple);
  font: 12px/1.6 var(--mono);
  letter-spacing: .09em;
}
.tape-no { border: 1px solid #b69fc4; padding: 2px 8px; }
h1 { max-width: 800px; margin: 22px 0 18px; font-size: clamp(30px, 4vw, 48px); line-height: 1.3; letter-spacing: -.04em; }
.intro { margin: 0; max-width: 770px; font-size: 17px; line-height: 1.95; color: #584b62; }
.meta { display: flex; flex-wrap: wrap; gap: 7px 24px; margin-top: 25px; color: var(--muted); font-size: 13px; }
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-top: 35px; }
.metric { padding: 20px 18px; border: 1px solid var(--line); background: #f4eee266; }
.metric strong { display: block; color: #694c80; font: 700 clamp(25px, 3vw, 34px)/1.2 var(--mono); }
.metric span { display: block; margin-top: 12px; font-weight: 600; font-size: 13px; }
.metric small { display: block; font-size: 11px; line-height: 1.75; margin-top: 5px; color: var(--muted); }
.content { padding: 40px 64px 54px; display: grid; grid-template-columns: minmax(0, 1fr) 190px; column-gap: 48px; align-items: start; }
.flow { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); padding: 0; margin: 0 0 40px; list-style: none; border: 1px solid var(--line); }
.flow li { padding: 15px 14px; border-right: 1px solid var(--line); color: #594266; font-size: 13px; }
.flow li:last-child { border-right: 0; }
.flow span { display: block; font: 11px/1.4 var(--mono); color: #987eab; margin-bottom: 6px; }
.story section + section { margin-top: 34px; }
h2 { margin: 0 0 12px; font-size: 20px; line-height: 1.5; }
.story p { margin: 0 0 14px; font-size: 15px; }
.sidebar { border-left: 1px solid var(--line); padding-left: 22px; }
.sidebar h2 { font: 12px/1.5 var(--mono); letter-spacing: .08em; color: var(--purple); margin-bottom: 13px; }
.tags { list-style: none; margin: 0 0 29px; padding: 0; }
.tags li { margin-bottom: 10px; color: #6b5877; font-size: 12px; overflow-wrap: anywhere; }
.backlink { font-size: 13px; line-height: 2; }
.ending { border-top: 1px solid var(--line); padding: 26px 64px; display: flex; gap: 20px; justify-content: space-between; flex-wrap: wrap; color: var(--muted); font-size: 12px; }
.ending p { margin: 0; }
.archive { padding: 34px 64px 50px; }
.archive h2 { margin: 20px 0; }
.archive-list { list-style: none; padding: 0; margin: 0; }
.archive-list li { border-top: 1px solid var(--line); }
.archive-list a { display: grid; grid-template-columns: 38px 1fr auto; gap: 18px; align-items: center; text-decoration: none; padding: 19px 2px; }
.archive-list a:hover { background: #dccae133; }
.archive-list .num { color: #9475a5; font: 13px var(--mono); }
.archive-list strong { display: block; font-size: 17px; }
.archive-list small { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }
.archive-list time { color: var(--muted); font: 12px var(--mono); }
.contact { margin-top: 32px; padding: 23px 26px; background: #ded1df66; }
.contact p { margin: 0; font-size: 14px; }
@media (max-width: 760px) {
  .topbar { padding: 17px 20px; min-height: 76px; gap: 14px; }
  .topbar nav { gap: 16px; font-size: 11px; }
  .wordmark { font-size: 13px; }
  .paper { margin: 0 12px 25px; }
  .hero { padding: 31px 24px; }
  .intro { font-size: 15px; }
  .metrics { grid-template-columns: 1fr; margin-top: 25px; gap: 9px; }
  .metric { padding: 16px; }
  .content { padding: 28px 24px 34px; display: block; }
  .flow { grid-template-columns: 1fr 1fr; margin-bottom: 30px; }
  .flow li { font-size: 12px; padding: 13px 12px; }
  .flow li:nth-child(2) { border-right: 0; }
  .flow li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .sidebar { border-left: 0; border-top: 1px solid var(--line); padding: 23px 0 0; margin-top: 32px; }
  .tags { display: flex; flex-wrap: wrap; gap: 7px 16px; margin-bottom: 22px; }
  .tags li { margin: 0; }
  .ending { padding: 22px 24px; gap: 10px; }
  .archive { padding: 18px 24px 30px; }
  .archive-list a { grid-template-columns: 25px 1fr; gap: 11px; }
  .archive-list time { grid-column: 2; margin-top: -7px; }
  .archive-list strong { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }