:root {
  --signal: #ff4b3e;
  --ink: #0b0b0d;
  --paper: #f4f1ea;
  --white: #ffffff;
  --graphite: #4b4b4f;
  --rule: #d6d3cc;
  --max: 1360px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.65 "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
.shell { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; background: var(--white); border: 2px solid var(--ink); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--rule); background: rgba(244,241,234,.98); }
.header-inner { min-height: 82px; display: flex; align-items: center; gap: 28px; }
.brand-link { min-width: 210px; min-height: 44px; display: flex; align-items: center; }
.brand-link img { width: 210px; height: auto; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 22px; font-size: 14px; font-weight: 700; }
.nav a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: none; border-bottom: 3px solid transparent; }
.nav a { min-width: 44px; justify-content: center; padding-inline: 7px; }
.nav a:hover, .nav a:focus-visible, .nav a[aria-current="page"] { border-color: var(--signal); }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border: 2px solid var(--ink); background: var(--ink); color: var(--white); font-weight: 800; text-decoration: none; }
.button:hover, .button:focus-visible { border-color: var(--signal); background: var(--signal); color: var(--ink); }
.button--light { background: var(--white); color: var(--ink); }
.button--signal { border-color: var(--signal); background: var(--signal); color: var(--ink); }
.button--signal:hover, .button--signal:focus-visible { background: var(--white); }
.eyebrow { margin: 0 0 12px; color: var(--signal); font-size: 12px; font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }
.status-label { display: inline-block; padding: 5px 9px; border: 1px solid currentColor; font-size: 12px; font-weight: 800; letter-spacing: .04em; }
.hero { background: var(--ink); color: var(--white); border-bottom: 8px solid var(--signal); }
.hero-grid { min-height: 650px; padding-block: 88px; display: grid; grid-template-columns: minmax(0,1.35fr) minmax(280px,.65fr); gap: 72px; align-items: center; }
.hero h1 { max-width: 950px; margin: 16px 0 26px; font-size: clamp(52px, 7vw, 100px); line-height: .98; letter-spacing: -.055em; }
.hero .lead { max-width: 780px; margin: 0; color: rgba(255,255,255,.78); font-size: clamp(18px, 2vw, 23px); }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-proof { border-top: 1px solid rgba(255,255,255,.35); }
.hero-proof div { padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.22); }
.hero-proof strong { display: block; color: var(--signal); font-size: 34px; line-height: 1.1; }
.hero-proof span { display: block; margin-top: 6px; color: rgba(255,255,255,.68); font-size: 13px; }
.notice { padding: 18px 20px; border-left: 6px solid var(--signal); background: var(--white); color: var(--ink); }
.notice p { margin: 0; }
.notice--dark { background: rgba(255,255,255,.08); color: var(--white); }
.section { padding-block: 96px; }
.section--white { background: var(--white); }
.section--ink { background: var(--ink); color: var(--white); }
.section-head { display: grid; grid-template-columns: 1fr minmax(280px, 440px); gap: 48px; align-items: end; margin-bottom: 48px; }
.section h2 { margin: 0; font-size: clamp(36px, 5vw, 68px); line-height: 1.06; letter-spacing: -.04em; }
.section-head > p { margin: 0; color: var(--graphite); }
.section--ink .section-head > p { color: rgba(255,255,255,.68); }
.institution { padding-top: 44px; border-top: 2px solid var(--ink); }
.institution + .institution { margin-top: 88px; }
.institution-head { display: grid; grid-template-columns: minmax(240px,.55fr) minmax(0,1.45fr); gap: 48px; margin-bottom: 34px; }
.institution h3 { margin: 0; font-size: clamp(30px, 4vw, 52px); line-height: 1.15; letter-spacing: -.03em; }
.institution > p a { min-height: 44px; display: inline-flex; align-items: center; }
.institution-copy p:first-child { margin-top: 0; font-size: 18px; }
.boundary { color: var(--graphite); font-size: 14px; }
.source-links { display: flex; flex-wrap: wrap; gap: 12px 22px; font-size: 13px; }
.source-links a, .project-card > a, .footer-links a, .breadcrumbs a, .aside-actions > a { min-height: 44px; display: inline-flex; align-items: center; }
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.project-card { min-height: 310px; padding: 26px; display: flex; flex-direction: column; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); background: var(--paper); }
.project-card:hover { background: var(--white); }
.project-code { color: var(--signal); font: 800 12px/1.2 Arial, sans-serif; letter-spacing: .1em; }
.project-card h4 { margin: 52px 0 14px; font-size: 25px; line-height: 1.3; }
.project-card p { margin: 0; color: var(--graphite); font-size: 14px; }
.card-institution { margin-bottom: 10px !important; color: var(--ink) !important; font-weight: 800; }
.project-meta { margin-top: auto; padding-top: 28px; display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--rule); font-size: 13px; }
.project-card a { margin-top: 18px; font-weight: 800; }
.filter-bar { margin-bottom: 34px; display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: end; }
.filter-bar label { font-weight: 800; }
.filter-bar input { width: 100%; min-height: 48px; margin-top: 8px; padding: 10px 13px; border: 2px solid var(--ink); border-radius: 0; background: var(--white); }
.filter-result { min-width: 120px; padding-bottom: 11px; color: var(--graphite); font-size: 14px; text-align: right; }
.path-list { list-style: none; margin: 40px 0 0; padding: 0; border-top: 1px solid rgba(255,255,255,.3); }
.path-list li { display: grid; grid-template-columns: 80px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.2); }
.path-list b { color: var(--signal); font: 900 14px/1.5 Arial,sans-serif; }
.future-grid { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid var(--rule); }
.future-grid div { min-height: 150px; padding: 22px; border-right: 1px solid var(--rule); }
.future-grid div:last-child { border-right: 0; }
.future-grid strong { display: block; margin-top: 38px; font-size: 18px; }
.footer { padding-block: 48px; background: var(--ink); color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; }
.footer img { width: 210px; height: auto; }
.footer p { margin: 14px 0 0; color: rgba(255,255,255,.62); font-size: 13px; }
.footer-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 14px 22px; font-size: 13px; }
.footer-links a { min-width: 44px; justify-content: center; padding-inline: 7px; }
.breadcrumbs { padding-block: 18px; border-bottom: 1px solid var(--rule); font-size: 13px; }
.breadcrumbs a { min-width: 44px; justify-content: center; }
.detail-hero { padding-block: 82px; background: var(--ink); color: var(--white); border-bottom: 8px solid var(--signal); }
.detail-hero h1 { max-width: 1000px; margin: 16px 0 20px; font-size: clamp(44px, 6vw, 82px); line-height: 1.02; letter-spacing: -.05em; }
.detail-hero .lead { max-width: 820px; color: rgba(255,255,255,.72); font-size: 18px; }
.facts { margin-top: 34px; display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid rgba(255,255,255,.3); border-left: 1px solid rgba(255,255,255,.3); }
.fact { min-height: 112px; padding: 18px; border-right: 1px solid rgba(255,255,255,.3); border-bottom: 1px solid rgba(255,255,255,.3); }
.fact span { display: block; color: rgba(255,255,255,.58); font-size: 12px; }
.fact strong { display: block; margin-top: 14px; font-size: 18px; }
.detail-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 72px; align-items: start; }
.detail-main section { padding: 52px 0; border-top: 2px solid var(--ink); }
.detail-main section:first-child { padding-top: 0; border-top: 0; }
.detail-main h2 { margin: 0 0 24px; font-size: clamp(30px,4vw,48px); }
.detail-main h3 { margin: 28px 0 10px; font-size: 22px; }
.detail-main p { max-width: 850px; }
.detail-aside { position: sticky; top: 112px; border-top: 6px solid var(--signal); background: var(--white); padding: 24px; }
.detail-aside h2 { margin: 0 0 12px; font-size: 22px; }
.detail-aside p { color: var(--graphite); font-size: 14px; }
.aside-actions { display: grid; gap: 10px; margin-top: 22px; }
.position-list { border-top: 1px solid var(--rule); }
.position { padding: 28px 0; border-bottom: 1px solid var(--rule); }
.position-head { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: start; }
.position h3 { margin: 0; }
.position pre { margin: 16px 0 0; white-space: pre-wrap; font: inherit; color: var(--graphite); }
.evidence-grid { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.evidence-grid div { min-height: 100px; padding: 18px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.paper-path { counter-reset: paper; list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.paper-path li { counter-increment: paper; display: grid; grid-template-columns: 58px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.paper-path li::before { content: counter(paper, decimal-leading-zero); color: var(--signal); font-weight: 900; }
.field-table { width: 100%; border-collapse: collapse; }
.field-table th, .field-table td { padding: 14px; border: 1px solid var(--rule); text-align: left; vertical-align: top; }
.field-table th { width: 28%; background: var(--white); }
.register-layout { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(280px,.8fr); gap: 64px; }
.register-form { display: grid; gap: 20px; }
.register-form label, .register-form fieldset { display: grid; gap: 8px; margin: 0; font-weight: 800; }
.register-form input, .register-form select, .register-form textarea { width: 100%; min-height: 48px; padding: 10px 12px; border: 2px solid var(--ink); border-radius: 0; background: var(--white); }
.register-form textarea { min-height: 130px; resize: vertical; }
.register-form fieldset { padding: 18px; border: 2px solid var(--ink); }
.check { min-height: 44px; grid-template-columns: 24px 1fr !important; align-items: start; padding-block: 8px; font-weight: 600 !important; }
.check input { width: 20px; min-height: 20px; margin-top: 4px; }
.local-note { padding: 24px; border-top: 6px solid var(--signal); background: var(--white); }
.poster-page { min-height: 100vh; display: flex; flex-direction: column; background: var(--paper); }
.poster { width: min(1100px, calc(100% - 48px)); margin: 32px auto; min-height: 1380px; display: grid; grid-template-rows: auto 1fr auto; border: 2px solid var(--ink); background: var(--paper); }
.poster-head { padding: 32px; display: flex; justify-content: space-between; gap: 24px; align-items: start; border-bottom: 8px solid var(--signal); }
.poster-head img { width: 220px; }
.poster-status { max-width: 300px; text-align: right; font-size: 12px; font-weight: 800; }
.poster-body { padding: 64px 52px; }
.poster-code { color: var(--signal); font-weight: 900; letter-spacing: .14em; }
.poster h1 { max-width: 850px; margin: 24px 0; font-size: clamp(54px,9vw,108px); line-height: .95; letter-spacing: -.055em; }
.poster-inst { max-width: 850px; font-size: 24px; font-weight: 800; }
.poster-facts { margin-top: 52px; display: grid; grid-template-columns: repeat(3,1fr); border-top: 2px solid var(--ink); border-left: 2px solid var(--ink); }
.poster-facts div { min-height: 120px; padding: 18px; border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
.poster-facts span { display: block; color: var(--graphite); font-size: 12px; }
.poster-facts strong { display: block; margin-top: 16px; font-size: 19px; }
.poster-columns { margin-top: 52px; display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.poster-columns h2 { margin: 0 0 18px; font-size: 26px; }
.poster-columns ul { padding-left: 20px; }
.poster-foot { padding: 28px 32px; display: grid; grid-template-columns: 1fr auto; gap: 24px; border-top: 2px solid var(--ink); font-size: 12px; }
.poster-foot p { margin: 0; max-width: 760px; }
.no-results { padding: 22px; border: 2px solid var(--signal); background: var(--white); }
@media (max-width: 980px) {
  .nav a:not(.nav-essential) { display: none; }
  .hero-grid, .institution-head, .section-head, .detail-grid, .register-layout { grid-template-columns: 1fr; }
  .hero-grid { min-height: auto; }
  .project-grid { grid-template-columns: repeat(2,1fr); }
  .detail-aside { position: static; }
  .future-grid { grid-template-columns: repeat(2,1fr); }
  .future-grid div:nth-child(2) { border-right: 0; }
  .future-grid div:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
}
@media (max-width: 680px) {
  .shell { width: min(100% - 40px, var(--max)); }
  .header-inner { min-height: 72px; }
  .brand-link { min-width: 0; }
  .brand-link img { width: 168px; }
  .nav { gap: 10px; }
  .nav a { font-size: 13px; }
  .hero-grid, .detail-hero { padding-block: 64px; }
  .hero h1 { font-size: clamp(48px,16vw,72px); }
  .section { padding-block: 72px; }
  .project-grid, .facts, .evidence-grid, .future-grid, .poster-facts, .poster-columns, .footer-grid { grid-template-columns: 1fr; }
  .project-card { min-height: 270px; }
  .filter-bar { grid-template-columns: 1fr; }
  .filter-result { text-align: left; }
  .future-grid div, .future-grid div:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--rule); }
  .position-head { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .poster { width: calc(100% - 24px); min-height: 0; margin: 12px auto; }
  .poster-head, .poster-body { padding: 24px; }
  .poster-head { display: grid; }
  .poster-status { text-align: left; }
  .poster-foot { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
@media print {
  .site-header, .breadcrumbs, .footer, .no-print { display: none !important; }
  body { background: white; }
  .poster { width: 100%; min-height: 100vh; margin: 0; break-inside: avoid; }
}