:root{
  --ivory:#FFFBF3;--ivory2:#FFF6E4;--gold-lite:#F8E7B8;--gray:#F6F3EC;
  --ink:#1C1608;--body:#3A3120;--muted:#6B5E43;--note:#8A7B5E;
  --gold:#D4A017;--gold2:#E8C547;--warm:#F0C94A;--deep:#B8860B;
  --pale:#F6E3A1;--soft:#FFF4D2;--line:rgba(212,160,23,.18);
  --line2:rgba(232,197,71,.42);--shadow:0 16px 42px rgba(80,55,10,.10);
  --gold-shadow:0 14px 36px rgba(212,160,23,.16);--max:1320px;--header:74px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ivory);color:var(--body);font-family:"Songti SC","Microsoft YaHei",serif;line-height:1.8;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit}
.skip-link{position:fixed;left:12px;top:-80px;z-index:2000;background:var(--ink);color:#fff;padding:10px 14px}
.skip-link:focus{top:10px}
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,251,243,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-shell{max-width:var(--max);height:var(--header);margin:auto;display:flex;align-items:center;gap:18px;padding:0 20px}
.menu-toggle,.search-toggle,.menu-close{border:0;background:transparent;color:var(--ink);cursor:pointer}
.menu-toggle{width:44px;height:44px;display:grid;place-content:center;gap:5px;flex:0 0 44px}
.menu-toggle span{display:block;width:20px;height:1.5px;background:var(--ink)}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{width:132px;max-height:42px;object-fit:contain}
.brand-text{font-size:20px;font-weight:900;letter-spacing:.12em}
.desktop-nav{display:flex;align-items:center;gap:2px;white-space:nowrap;flex:1}
.desktop-nav a{padding:24px 12px 21px;position:relative;color:var(--muted);font-size:14px}
.desktop-nav a:hover,.desktop-nav a.is-active{color:var(--ink)}
.desktop-nav a.is-active:after{content:"";position:absolute;left:12px;right:12px;bottom:10px;height:2px;background:var(--gold)}
.header-actions{display:flex;align-items:center;gap:10px}
.search-toggle{width:44px;height:44px;font-size:24px}
.participate-btn,.gold-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:10px;background:linear-gradient(135deg,#F0C94A 0%,#D4A017 55%,#B8860B 100%);color:var(--ink);font-weight:800;box-shadow:var(--gold-shadow);white-space:nowrap}
.mobile-participate{display:none}
.search-panel{position:fixed;top:var(--header);left:0;right:0;z-index:880;background:var(--ivory2);border-bottom:1px solid var(--line2);box-shadow:var(--shadow)}
.search-inner{max-width:var(--max);margin:auto;padding:16px 20px;display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.search-inner strong{margin-right:auto}
.search-inner a{font-size:14px;color:var(--muted)}
main{min-height:65vh}
.section{max-width:var(--max);margin:0 auto;padding:68px 20px}
.section.alt{max-width:none;background:var(--ivory2)}
.section.alt>.inner{max-width:var(--max);margin:auto}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--deep);font-size:13px;letter-spacing:.14em}
.eyebrow:before{content:"";width:28px;height:1px;background:var(--gold)}
h1,h2,h3{color:var(--ink);line-height:1.25;margin-top:0}
h1{font-size:clamp(38px,5vw,72px);letter-spacing:-.035em}
h2{font-size:clamp(26px,3vw,42px)}
h3{font-size:20px}
p{margin:0 0 1em}
.lead{font-size:18px;color:var(--muted);max-width:850px}
.hero{max-width:var(--max);margin:0 auto;padding:46px 20px 54px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-copy{padding:20px 0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.text-link{display:inline-flex;align-items:center;min-height:44px;padding:0 4px;border-bottom:1px solid var(--gold)}
.image-slot{position:relative;aspect-ratio:16/10;background:linear-gradient(145deg,var(--ivory2),var(--gold-lite));border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.image-slot img{width:100%;height:100%;object-fit:cover}
.image-fallback{position:absolute;inset:0;background:radial-gradient(circle at 78% 22%,rgba(232,197,71,.35),transparent 23%),linear-gradient(135deg,rgba(255,255,255,.75),rgba(248,231,184,.55))}
.cover{max-width:var(--max);margin:auto;padding:20px}
.cover .image-slot{aspect-ratio:16/7;border-radius:8px}
.cover-info{border:1px solid var(--line2);border-top:3px solid var(--gold);padding:28px;background:#fffdf8;display:grid;grid-template-columns:1.4fr .8fr;gap:30px}
.cover-info h1{font-size:clamp(32px,4vw,54px);margin-bottom:12px}
.domain-note{font-size:13px;color:var(--deep);font-weight:800}
.keywords{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;align-items:stretch}
.keywords span{display:grid;place-items:center;padding:14px 10px;border-left:1px solid var(--line2);font-size:13px}
.index-strip{max-width:var(--max);margin:auto;padding:0 20px 18px;display:flex;gap:24px;overflow-x:auto;white-space:nowrap}
.index-strip a{font-size:14px;padding:12px 0;border-bottom:1px solid transparent}
.index-strip a:hover{border-color:var(--gold)}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fffdf8;border:1px solid var(--line);border-radius:12px;padding:24px;box-shadow:0 8px 24px rgba(80,55,10,.05)}
.card p:last-child{margin-bottom:0}
.num{font-size:12px;letter-spacing:.16em;color:var(--gold);font-weight:900}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
.section-title p{max-width:600px;color:var(--muted)}
.editorial-grid{display:grid;grid-template-columns:1.5fr .75fr .75fr;gap:18px}
.feature{grid-row:span 2;background:var(--ink);color:var(--ivory2);padding:34px;border-radius:14px}
.feature h2{color:#fff}
.feature .eyebrow{color:var(--pale)}
.raceway{display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:18px}
.raceway article:first-child{grid-row:span 2}
.raceway article:nth-child(4){grid-column:span 2}
.timeline{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line2);padding-top:24px}
.step{padding:0 18px;border-left:1px solid var(--line)}
.step:first-child{border-left:0}
.step b{font-size:34px;color:var(--gold)}
.program{border-top:1px solid var(--line2)}
.program-row{display:grid;grid-template-columns:90px 1fr 180px;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
.status{justify-self:end;color:var(--deep);font-size:13px}
.numbered-list{display:grid}
.numbered-item{display:grid;grid-template-columns:88px 1fr;gap:24px;padding:28px 0;border-top:1px solid var(--line)}
.big{font-size:42px;line-height:1;color:var(--gold)}
.notice-board{background:#fffdf8;border:1px solid var(--line2);border-radius:12px;padding:26px;margin-bottom:18px}
.notice-board .bar{height:5px;background:linear-gradient(90deg,var(--gold),transparent);margin:-26px -26px 22px}
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.check-item{position:relative;padding:24px 24px 24px 56px;background:#fffdf8;border:1px solid var(--line);border-radius:10px}
.check-item:before{content:"✓";position:absolute;left:20px;top:22px;color:var(--deep);font-weight:900}
.article-list article{padding:26px 0;border-bottom:1px solid var(--line)}
.article-list article:first-child{border-top:1px solid var(--line)}
.chapter{display:grid;grid-template-columns:180px 1fr;gap:28px;padding:28px 0;border-top:1px solid var(--line)}
.showcase-row{display:flex;gap:18px;overflow-x:auto;padding-bottom:12px}
.showcase-row article{min-width:350px}
.gallery-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
.gallery-grid article:first-child{grid-row:span 2}
.profile-placeholders{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.profile{min-height:220px;padding:24px;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(160deg,#fff,var(--ivory2));border:1px solid var(--line);border-radius:12px}
.profile .id{font-size:36px;color:var(--pale);font-weight:900}
.callout{padding:30px;border:1px solid var(--line2);background:var(--soft);border-radius:12px}
.statement{padding:44px;background:var(--ink);color:var(--ivory2);border-radius:14px}
.statement h2{color:#fff}
.faq details{padding:20px 0;border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;color:var(--ink);font-weight:900}
.faq details p{padding-top:12px;color:var(--muted)}
.site-overlay{position:fixed;inset:0;z-index:1000;background:rgba(28,22,8,.45);visibility:hidden;opacity:0;pointer-events:none;transition:.25s}
.site-overlay.open{visibility:visible;opacity:1;pointer-events:auto}
.site-menu{position:fixed;top:0;bottom:0;left:0;z-index:1010;width:min(460px,88vw);background:var(--ivory);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:.28s;box-shadow:30px 0 60px rgba(28,22,8,.15);display:flex;flex-direction:column}
.site-menu.open{transform:none;visibility:visible;pointer-events:auto}
.menu-open{overflow:hidden}
.menu-head{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line)}
.menu-brand{display:flex;align-items:center;gap:12px}
.menu-brand img{width:96px;max-height:38px;object-fit:contain}
.menu-brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.14em}
.menu-close{width:44px;height:44px;font-size:30px}
.menu-scroll{overflow:auto;padding:18px 22px 34px}
.menu-group{padding:10px 0 18px;border-bottom:1px solid var(--line)}
.menu-group h2{font-size:13px;color:var(--deep);letter-spacing:.12em}
.menu-group a{display:block;padding:9px 0}
.menu-group a b{display:block;color:var(--ink)}
.menu-group a span{display:block;font-size:12px;line-height:1.6;color:var(--muted)}
.mobile-bottom-nav{display:none}
.site-footer{background:#1A1508;color:#FFF6E4;border-top:1px solid rgba(232,197,71,.35)}
.footer-shell{max-width:var(--max);margin:auto;padding:58px 20px 34px}
.footer-brand{max-width:650px;margin-bottom:36px}
.footer-brand img{width:140px;margin-bottom:14px}
.footer-brand h2{color:#fff;margin-bottom:10px}
.footer-brand h2 small{display:block;margin-top:8px;color:var(--pale);font-size:11px;letter-spacing:.18em}
.footer-brand p{color:#d9cfb9}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;padding:34px 0;border-top:1px solid rgba(232,197,71,.18);border-bottom:1px solid rgba(232,197,71,.18)}
.footer-links h3{color:var(--pale);font-size:14px}
.footer-links a{display:block;padding:4px 0;color:#d9cfb9;font-size:13px}
.footer-note{padding-top:26px;color:#c8bda5;font-size:12px}
.copyright{font-size:12px;color:#a99e87}

@media(max-width:1020px){
  .desktop-nav,.header-actions{display:none}
  .nav-shell{justify-content:space-between}
  .mobile-participate{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 14px;border:1px solid var(--line2);border-radius:9px;font-weight:800}
  .brand{position:absolute;left:50%;transform:translateX(-50%)}
  .hero,.cover-info{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .editorial-grid{grid-template-columns:1fr 1fr}
  .feature{grid-column:1/-1;grid-row:auto}
  .raceway{grid-template-columns:1fr 1fr}
  .raceway article:first-child{grid-row:auto}
  .raceway article:nth-child(4){grid-column:auto}
  .timeline{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .profile-placeholders{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  :root{--header:64px}
  .nav-shell{height:64px;padding:0 14px}
  .brand img{width:102px;max-height:34px}
  .brand-text{font-size:16px}
  .section{padding:48px 14px}
  .cover{padding:12px 14px}
  .cover .image-slot{aspect-ratio:4/3}
  .cover-info{padding:20px}
  .keywords{grid-template-columns:1fr}
  .keywords span{justify-content:start;border-left:0;border-top:1px solid var(--line);padding:10px 0}
  .hero{padding:32px 14px 42px;gap:28px}
  .hero .image-slot{order:-1}
  .grid-2,.grid-3,.grid-4,.editorial-grid,.raceway,.gallery-grid,.checklist{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;border-top:0;padding-top:0}
  .step,.step:first-child{border-left:1px solid var(--line2);padding:0 0 24px 20px}
  .program-row{grid-template-columns:1fr;gap:4px}
  .status{justify-self:start}
  .profile-placeholders{grid-template-columns:1fr 1fr}
  .profile{min-height:180px}
  .numbered-item{grid-template-columns:64px 1fr;gap:14px}
  .chapter{grid-template-columns:1fr;gap:8px}
  .section-title{align-items:start;flex-direction:column}
  .statement{padding:30px 22px}
  .showcase-row article{min-width:82vw}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:850;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,251,243,.98);border-top:1px solid var(--line2);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bottom-nav a{min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--muted)}
  .mobile-bottom-nav a.is-active{color:var(--deep);font-weight:900}
  .site-footer{padding-bottom:70px}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-shell{padding-left:14px;padding-right:14px}
  .menu-head{height:64px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--gold2);outline-offset:3px}