:root {
  color-scheme: light;
  --ink: #20251f;
  --muted: #686c64;
  --paper: #f3eee5;
  --paper-deep: #e9e0d2;
  --surface: #faf7f1;
  --accent: #c65f2c;
  --accent-soft: #edc5ae;
  --line: rgba(32, 37, 31, .16);
  --shadow: 0 22px 60px rgba(72, 55, 36, .12);
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --mono: "SFMono-Regular", "Roboto Mono", Consolas, monospace;
  --content: min(90rem, calc(100% - 3rem));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 6%, rgba(198, 95, 44, .10), transparent 24rem),
    var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.skip-link { position: fixed; left: 1rem; top: -4rem; z-index: 20; background: var(--ink); color: white; padding: .7rem 1rem; }
.skip-link:focus { top: 1rem; }
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 10; opacity: .12;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
}

.topbar {
  position: sticky; top: 0; z-index: 9;
  width: 100%;
  background: rgba(243, 238, 229, .88); border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(120%);
}
.topbar-main {
  width: var(--content); margin: 0 auto; padding: .85rem 0;
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.brand { display: flex; align-items: center; gap: .75rem; color: var(--ink); text-decoration: none; font-weight: 650; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 2.25rem; height: 2.25rem; background: var(--ink); color: var(--paper); border-radius: .55rem; font: 700 .8rem var(--mono); }
.site-filter, .view-switch { display: flex; gap: .25rem; padding: .25rem; border: 1px solid var(--line); border-radius: .8rem; background: rgba(250, 247, 241, .65); }
.filter-button, .view-button {
  border: 0; border-radius: .55rem; padding: .48rem .82rem; color: var(--muted); background: transparent; cursor: pointer;
  transition: color .22s ease, background .22s ease, transform .22s ease;
}
.filter-button:hover, .view-button:hover { color: var(--ink); background: rgba(32, 37, 31, .07); }
.filter-button:active, .view-button:active { transform: scale(.98); }
.filter-button.is-active, .view-button.is-active { color: var(--paper); background: var(--ink); }
.toc-nav { border-top: 1px solid var(--line); overflow: hidden; }
.toc-list {
  width: var(--content); margin: 0 auto; display: flex; align-items: stretch; gap: 0;
  overflow-x: auto; scrollbar-width: none;
}
.toc-list::-webkit-scrollbar { display: none; }
.toc-label, .toc-link {
  flex: 0 0 auto; display: inline-flex; align-items: center; min-height: 2.75rem;
  padding: 0 .9rem; white-space: nowrap; font-size: .78rem;
}
.toc-label { padding-left: 0; color: var(--accent); font: 650 .68rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.toc-link {
  position: relative; color: var(--muted); text-decoration: none;
  transition: color .2s ease, background .2s ease;
}
.toc-link::after {
  content: ""; position: absolute; right: .9rem; bottom: 0; left: .9rem; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .22s ease;
}
.toc-link:hover { color: var(--ink); background: rgba(32, 37, 31, .04); }
.toc-link.is-current { color: var(--ink); font-weight: 650; }
.toc-link.is-current::after { transform: scaleX(1); }

main { overflow: clip; }
.hero {
  width: var(--content); margin: 0 auto; min-height: 39rem; padding: 7.5rem 0 8rem;
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(19rem, .5fr); align-items: end; gap: 5rem;
}
.eyebrow, .section-index { margin: 0 0 1.1rem; color: var(--accent); font: 650 .76rem/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
h1 { max-width: 12ch; margin: 0; font: 700 clamp(3.6rem, 8vw, 7.5rem)/.96 var(--serif); letter-spacing: -.065em; text-wrap: balance; }
h1 em { color: var(--accent); font-style: normal; }
.hero-summary { max-width: 42rem; margin: 2.1rem 0 0; color: var(--muted); font-size: 1.08rem; line-height: 1.85; text-wrap: pretty; }
.date-basis { display: inline-flex; margin-top: 2rem; padding: .65rem .9rem; border-left: 3px solid var(--accent); background: rgba(250, 247, 241, .7); font: 500 .82rem/1.5 var(--mono); color: var(--muted); }
.hero-status { align-self: end; padding: 1.5rem 0 1.2rem 2rem; border-left: 1px solid var(--ink); }
.status-label, .next-deadline-label { color: var(--muted); font: 550 .72rem/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.hero-status strong { display: block; margin: .45rem 0 2.5rem; font-family: var(--serif); font-size: 2rem; }
.next-deadline { margin-top: .45rem; font-weight: 650; text-wrap: pretty; }

.section-shell { width: var(--content); margin: 0 auto; padding: 7rem 0 8rem; border-top: 1px solid var(--line); scroll-margin-top: 8.5rem; }
.urgent-section { width: 100%; padding-inline: max(1.5rem, calc((100% - 90rem) / 2)); color: #f8f3ea; background: var(--ink); border-top: 0; }
.section-heading { margin-bottom: 3rem; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .6fr); gap: 3rem; align-items: end; }
.section-heading h2 { margin: 0; font: 650 clamp(2.3rem, 5vw, 4.7rem)/1.05 var(--serif); letter-spacing: -.045em; text-wrap: balance; }
.section-heading > p, .split-heading > p { max-width: 35rem; margin: 0; color: var(--muted); text-wrap: pretty; }
.urgent-section .section-heading > p { color: #bfc1b9; }

.deadline-grid { display: grid; grid-template-columns: 1.2fr .9fr .9fr .9fr; gap: 1px; background: rgba(255,255,255,.18); }
.deadline-card { min-height: 17rem; padding: 1.6rem; background: var(--ink); display: flex; flex-direction: column; transition: background .25s ease, transform .25s ease; }
.deadline-card:hover { background: #2b3029; transform: translateY(-3px); }
.deadline-card:first-child { background: var(--accent); }
.deadline-card:first-child:hover { background: #d06a34; }
.deadline-top { display: flex; justify-content: space-between; gap: 1rem; color: rgba(255,255,255,.68); font-size: .82rem; }
.deadline-count { margin: auto 0 1.3rem; font: 700 clamp(2.6rem, 4vw, 4.8rem)/1 var(--mono); letter-spacing: -.07em; font-variant-numeric: tabular-nums; }
.deadline-title { margin: 0; font-family: var(--serif); font-size: 1.3rem; line-height: 1.35; }
.deadline-note { margin: .6rem 0 0; color: rgba(255,255,255,.68); font-size: .84rem; }
.empty-state { padding: 2rem; border: 1px solid rgba(255,255,255,.2); color: #d8d7d0; }

.briefing-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 1px; background: var(--line); }
.editorial-panel { padding: clamp(2rem, 5vw, 4rem); background: var(--surface); }
.editorial-panel h3 { margin: 0 0 2rem; font: 650 1.8rem/1.2 var(--serif); }
.accent-panel { background: var(--paper-deep); }
.accent-panel p { max-width: 38rem; }
.rule-list { display: grid; gap: 1.2rem; margin: 0; padding: 0; list-style: none; counter-reset: rules; }
.rule-list li { position: relative; padding-left: 2.6rem; max-width: 50rem; }
.rule-list li::before { counter-increment: rules; content: "0" counter(rules); position: absolute; left: 0; top: .08rem; color: var(--accent); font: 600 .72rem var(--mono); }

.table-frame { overflow-x: auto; background: rgba(250, 247, 241, .68); border-top: 1px solid var(--ink); }
table { width: 100%; min-width: 58rem; border-collapse: collapse; font-size: .88rem; }
th { padding: 1rem .9rem; color: var(--muted); font: 600 .7rem/1.35 var(--mono); letter-spacing: .06em; text-align: left; text-transform: uppercase; border-bottom: 1px solid var(--line); }
td { padding: 1rem .9rem; vertical-align: top; border-bottom: 1px solid var(--line); }
tbody tr { transition: background .2s ease; }
tbody tr:hover { background: rgba(198, 95, 44, .06); }
.date-cell, .status-chip { white-space: nowrap; font-variant-numeric: tabular-nums; }
.status-chip { display: inline-block; padding: .2rem .45rem; color: var(--ink); border-left: 2px solid var(--muted); font: 550 .72rem var(--mono); }
.status-chip.urgent { color: var(--accent); border-color: var(--accent); font-weight: 700; }
.status-chip.passed { color: #888b84; border-color: #aaa; }
.table-meta { display: flex; justify-content: space-between; gap: 1rem; margin: -1rem 0 1rem; color: var(--muted); font-size: .82rem; }
.text-action { margin-top: 1.5rem; padding: .65rem 0; color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid var(--ink); cursor: pointer; font-weight: 650; }
.text-action:hover { color: var(--accent); border-color: var(--accent); }

.execution-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.execution-list li { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.execution-list span { color: var(--accent); font: 600 .78rem var(--mono); }
.execution-list p { margin: 0; max-width: 54rem; }
.caveat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); }
.caveat-grid p { margin: 0; padding: 2rem; background: var(--paper-deep); text-wrap: pretty; }

footer { width: var(--content); margin: 0 auto; padding: 3rem 0 4rem; display: flex; justify-content: space-between; gap: 2rem; border-top: 1px solid var(--ink); }
footer strong { font-family: var(--serif); font-size: 1.25rem; }
footer p { margin: .25rem 0 0; color: var(--muted); }
.footer-meta { display: grid; gap: .35rem; color: var(--muted); font: .76rem/1.5 var(--mono); text-align: right; }

[hidden] { display: none !important; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; } }
@media (max-width: 900px) {
  :root { --content: min(100% - 2rem, 56rem); }
  .topbar-main { align-items: flex-start; flex-direction: column; gap: .65rem; padding: .8rem 0; }
  .site-filter { width: 100%; overflow-x: auto; }
  .filter-button { flex: 1; min-width: max-content; }
  .toc-list { width: 100%; padding: 0 1rem; }
  .toc-label { padding-left: 0; }
  .section-shell { scroll-margin-top: 11rem; }
  .hero { min-height: auto; padding: 5rem 0 5.5rem; grid-template-columns: 1fr; gap: 3rem; }
  h1 { font-size: clamp(3.2rem, 14vw, 5.5rem); }
  .hero-status { padding-left: 1.25rem; }
  .section-shell { padding: 5rem 0 5.5rem; }
  .urgent-section { padding-inline: 1rem; }
  .split-heading, .briefing-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .deadline-grid { grid-template-columns: repeat(2, 1fr); }
  .deadline-card { min-height: 14rem; }
  .caveat-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brand span:last-child { font-size: .88rem; }
  .hero { padding-top: 3.5rem; }
  .hero-summary { font-size: 1rem; }
  .date-basis { display: block; }
  .deadline-grid { grid-template-columns: 1fr; }
  .deadline-card { min-height: 12.5rem; }
  .view-switch { width: 100%; }
  .view-button { flex: 1; }
  .section-heading { margin-bottom: 2rem; }
  .section-heading h2 { font-size: 2.4rem; }
  .editorial-panel { padding: 2rem 1.25rem; }
  .execution-list li { grid-template-columns: 2.5rem 1fr; }
  footer { flex-direction: column; }
  .footer-meta { text-align: left; }
}