/* V087 paper-blue / magazine-stack / topic-compass */
:root {
  --paper: #f6f8f7;
  --paper-blue: #e9f1f7;
  --ink: #15283a;
  --muted: #55697b;
  --line: #9fb6c8;
  --blue: #164b73;
  --blue-2: #2e719c;
  --coral: #c85f55;
  --cream: #fffdf7;
  --shadow: 6px 7px 0 rgba(21, 40, 58, 0.12);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(rgba(22, 75, 115, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 30px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.78;
}
a { color: var(--blue); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--coral); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 99; background: var(--cream); padding: .6rem 1rem; border: 2px solid var(--ink); }
.skip-link:focus { top: 1rem; }
.site-header { background: rgba(246, 248, 247, .96); border-bottom: 1px solid var(--line); }
.status-tier, .topic-tier, .shell { width: min(1180px, calc(100% - 2rem)); margin-inline: auto; }
.status-tier { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .65rem 0; font-size: .88rem; }
.status-tier strong { letter-spacing: .08em; }
.status-note { color: var(--muted); text-align: right; }
.topic-tier { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; padding: .75rem 0 1rem; }
.topic-tier a { display: inline-flex; min-height: 42px; align-items: center; padding: .38rem .78rem; border: 1px solid var(--line); border-radius: 999px; background: var(--cream); text-decoration: none; font-size: .93rem; }
.topic-tier a:hover { border-color: var(--coral); }
main { min-height: 65vh; }
.shell { padding-block: clamp(2rem, 5vw, 5rem); }
.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(250px, .75fr); gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.eyebrow { margin: 0 0 .7rem; color: var(--coral); text-transform: uppercase; letter-spacing: .14em; font-weight: 800; font-size: .78rem; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
h1 { margin: 0 0 1rem; font-family: ui-serif, Georgia, "Songti SC", serif; font-size: clamp(2.6rem, 8vw, 6.6rem); letter-spacing: -.045em; }
.inner-hero h1, .article-head h1 { font-size: clamp(2rem, 6vw, 4.6rem); }
h2 { margin: 0 0 1rem; font-size: clamp(1.45rem, 3vw, 2.35rem); }
h3 { margin: 0 0 .65rem; font-size: 1.1rem; }
p { margin: 0 0 1rem; }
.lead { max-width: 66ch; color: #263f54; font-size: clamp(1.05rem, 2vw, 1.25rem); }
.button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: .55rem 1rem; border: 2px solid var(--ink); border-radius: 999px; background: var(--blue); color: white; text-decoration: none; font-weight: 750; box-shadow: 3px 3px 0 var(--ink); }
.button.secondary { background: var(--cream); color: var(--ink); }
.button:hover { transform: translate(-1px, -1px); color: white; box-shadow: 5px 5px 0 var(--ink); }
.button.secondary:hover { color: var(--coral); }
.compass { position: relative; width: min(100%, 390px); aspect-ratio: 1; margin-inline: auto; border: 2px solid var(--ink); border-radius: 50%; background: radial-gradient(circle at center, var(--cream) 0 19%, transparent 20%), conic-gradient(from 45deg, var(--paper-blue), #d3e4ef, var(--paper-blue), #d3e4ef, var(--paper-blue)); box-shadow: var(--shadow); }
.compass::before, .compass::after { content: ""; position: absolute; inset: 50% 9% auto; height: 1px; background: var(--ink); }
.compass::after { transform: rotate(90deg); }
.compass-core { position: absolute; inset: 38%; display: grid; place-items: center; border: 2px solid var(--ink); border-radius: 50%; background: var(--coral); color: white; font-weight: 900; z-index: 2; }
.compass-label { position: absolute; padding: .24rem .55rem; border: 1px solid var(--ink); border-radius: 999px; background: var(--cream); font-weight: 750; font-size: .9rem; z-index: 3; }
.compass-label.n { top: 7%; left: 50%; transform: translateX(-50%); }
.compass-label.e { right: 5%; top: 50%; transform: translateY(-50%); }
.compass-label.s { bottom: 7%; left: 50%; transform: translateX(-50%); }
.compass-label.w { left: 5%; top: 50%; transform: translateY(-50%); }
.section-block { padding-block: clamp(2.5rem, 6vw, 5.5rem); border-top: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: 2rem; align-items: end; margin-bottom: 2rem; }
.section-head p { color: var(--muted); max-width: 66ch; }
.offset-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; padding: .5rem .6rem .8rem; overflow: clip; }
.offset-card { min-width: 0; padding: 1.35rem; border: 1.5px solid var(--ink); border-radius: var(--radius); background: var(--cream); box-shadow: var(--shadow); }
.offset-card:nth-child(3n + 2) { transform: translateY(10px); background: var(--paper-blue); }
.offset-card:nth-child(3n) { transform: translateY(-6px); }
.offset-card p { color: var(--muted); }
.offset-card a { font-weight: 750; }
.card-index { display: inline-block; margin-bottom: .9rem; color: var(--coral); font: 800 .78rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }
.magazine-stack { display: grid; gap: 1.2rem; }
.stack-sheet { position: relative; padding: clamp(1.25rem, 3vw, 2rem); border: 1.5px solid var(--ink); border-radius: var(--radius); background: var(--cream); box-shadow: var(--shadow); }
.stack-sheet:nth-child(even) { margin-left: clamp(0rem, 4vw, 3.5rem); background: var(--paper-blue); }
.stack-sheet::before { content: attr(data-mark); position: absolute; right: 1rem; top: .8rem; color: var(--coral); font: 800 .72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }
.inner-hero, .article-head { padding-bottom: 2rem; border-bottom: 2px solid var(--ink); margin-bottom: 2.5rem; }
.breadcrumbs { margin-bottom: 1.1rem; color: var(--muted); font-size: .9rem; }
.breadcrumbs a { color: inherit; }
.byline { display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; color: var(--muted); font-size: .92rem; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.article-copy section { margin-bottom: 2.5rem; }
.article-copy p { max-width: 74ch; }
.side-note { position: sticky; top: 1rem; padding: 1rem; border-left: 4px solid var(--coral); background: var(--paper-blue); }
.side-note strong { display: block; margin-bottom: .4rem; }
.tag-strip { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.25rem; }
.tag-strip a { padding: .22rem .65rem; border: 1px solid var(--line); border-radius: 999px; background: var(--cream); text-decoration: none; font-size: .86rem; }
.checklist { display: grid; gap: .8rem; margin: 1.5rem 0; padding: 0; list-style: none; }
.checklist label { display: flex; gap: .85rem; align-items: flex-start; padding: 1rem; border: 1px solid var(--line); border-radius: 14px; background: var(--cream); cursor: pointer; }
.checklist input { width: 1.25rem; height: 1.25rem; margin-top: .2rem; accent-color: var(--blue); }
.progress-note { color: var(--blue); font-weight: 800; }
.notice { padding: 1rem 1.15rem; border: 1px solid var(--coral); border-radius: 12px; background: #fff3ee; }
.faq-list { display: grid; gap: 1rem; }
.faq-list article { padding: 1.2rem; border-left: 4px solid var(--blue-2); background: var(--cream); }
.site-footer { border-top: 2px solid var(--ink); background: var(--ink); color: #edf4f8; }
.footer-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; padding-block: 2.5rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-content: start; }
.site-footer a { color: #edf4f8; }
.fine-print { color: #b9cbd7; font-size: .85rem; }
@media (max-width: 900px) {
  .hero, .article-layout, .section-head, .footer-grid { grid-template-columns: 1fr; }
  .offset-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .side-note { position: static; }
}
@media (max-width: 620px) {
  .status-tier { align-items: flex-start; }
  .status-note { max-width: 16rem; }
  .topic-tier { gap: .4rem; }
  .topic-tier a { flex: 1 1 calc(50% - .4rem); justify-content: center; text-align: center; }
  .offset-grid { grid-template-columns: 1fr; padding-inline: .25rem; }
  .offset-card:nth-child(n), .stack-sheet:nth-child(even) { transform: none; margin-left: 0; }
  .shell { width: min(100% - 1.25rem, 1180px); }
  h1 { font-size: clamp(2.35rem, 17vw, 4.2rem); }
  .inner-hero h1, .article-head h1 { font-size: clamp(2rem, 10vw, 3.2rem); }
  .compass { width: min(90vw, 350px); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}