*{box-sizing:border-box}
:root{
  --bg:#f4fbfa;
  --surface:#ffffff;
  --soft:#e9f7f5;
  --soft2:#f8fcfb;
  --ink:#102f2e;
  --text:#234e4b;
  --muted:#668480;
  --teal:#159c96;
  --teal-dark:#0b6d69;
  --aqua:#79d9d1;
  --coral:#e77b67;
  --amber:#e2b142;
  --line:rgba(21,156,150,.22);
  --shadow:0 18px 42px rgba(16,47,46,.08);
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.75;overflow-x:hidden;padding-top:126px}
body.no-scroll{overflow:hidden}
a{text-decoration:none;color:inherit}
button{font:inherit}
img{max-width:100%;display:block}
.wrap{width:min(1120px,calc(100% - 32px));margin:0 auto}
.pulse-bar{position:fixed;z-index:80;left:0;right:0;top:0;height:24px;background:var(--ink);color:#eaf7f5;font-size:12px}
.pulse-inner{height:24px;display:flex;align-items:center;justify-content:space-between}
.pulse-search{border:0;background:transparent;color:inherit;padding:0;cursor:pointer}
.site-header{position:fixed;z-index:80;left:0;right:0;top:24px;height:68px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:saturate(160%) blur(10px)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-image{min-width:88px;height:30px;display:flex;align-items:center}
.brand-image img{height:30px;width:auto;object-fit:contain}
.brand-image strong{font-size:18px;color:var(--ink)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-size:16px;color:var(--ink)}
.brand-text small{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
.header-tools{display:flex;gap:8px}
.app-link,.menu-button,.btn{
  min-height:44px;padding:0 15px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);font-weight:700;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease
}
.menu-button{font:inherit}
.app-link:hover,.menu-button:hover,.btn:hover{box-shadow:0 0 0 3px rgba(121,217,209,.3),0 10px 24px rgba(11,109,105,.14)}
.app-link:active,.menu-button:active,.btn:active{transform:translateY(1px)}
.btn.primary{border:0;color:#f5ffff;background:linear-gradient(135deg,#7bdad1 0%,#159c96 55%,#0b6d69 100%);box-shadow:0 8px 18px rgba(21,156,150,.22)}
.btn.secondary{background:#fff}
a:focus-visible,button:focus-visible{outline:2px solid var(--teal-dark);outline-offset:2px}
.main-nav{position:fixed;z-index:75;left:0;right:0;top:92px;height:34px;background:var(--soft);border-bottom:1px solid var(--line)}
.nav-inner{height:34px;display:flex;align-items:stretch;gap:2px;overflow:hidden}
.nav-inner a{height:34px;display:flex;align-items:center;padding:0 14px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;white-space:nowrap}
.nav-inner a:hover,.nav-inner a.is-current{color:var(--teal-dark);background:rgba(255,255,255,.55);border-bottom-color:var(--teal);font-weight:700}
.site-main{padding-top:30px;padding-bottom:70px}
.breadcrumb{font-size:13px;color:var(--muted);margin:0 0 18px}
.breadcrumb a{color:var(--teal-dark)}
.hero{
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:26px;align-items:stretch;
  padding:10px 0 34px;border-bottom:1px solid var(--line)
}
.hero-copy{padding:24px 0}
.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--teal-dark);font-size:12px;font-weight:800;letter-spacing:.08em;margin-bottom:10px}
.kicker:before{content:"";width:22px;height:2px;background:var(--teal);border-radius:2px}
h1,h2,h3{margin:0;color:var(--ink);line-height:1.32}
h1{font-size:34px;letter-spacing:-.02em;margin-bottom:14px}
h2{font-size:22px;margin-bottom:10px}
h3{font-size:17px;margin-bottom:7px}
p{margin:0 0 14px}
.hero-lead{font-size:17px;color:var(--text);max-width:720px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.hero-panel{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:22px;display:flex;flex-direction:column;justify-content:space-between}
.hero-panel .signal{display:grid;gap:10px}
.signal-item{padding:13px 14px;border-radius:14px;background:var(--soft2);border-left:4px solid var(--teal)}
.signal-item:nth-child(2){border-left-color:var(--amber)}
.signal-item:nth-child(3){border-left-color:var(--coral)}
.signal-item b{display:block;color:var(--ink)}
.signal-item span{font-size:13px;color:var(--muted)}
.hero-panel-note{font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line);margin-top:16px}
.section{padding:34px 0;border-bottom:1px solid var(--line)}
.section:last-child{border-bottom:0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
.section-head p{max-width:620px;color:var(--muted);margin:0}
.focus-stack{display:grid;gap:14px}
.focus-row{
  display:grid;grid-template-columns:130px minmax(0,1fr) 120px;gap:18px;align-items:center;
  padding:18px 0;border-top:1px solid var(--line)
}
.focus-row:first-child{border-top:0}
.focus-label{font-size:13px;font-weight:800;color:var(--teal-dark)}
.focus-row .meta{text-align:right;font-size:12px;color:var(--muted)}
.feature-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
.feature-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;min-height:190px}
.feature-card.large{grid-row:span 2;min-height:396px}
.feature-card .tag{display:inline-flex;min-height:28px;align-items:center;padding:0 9px;border-radius:999px;background:var(--soft);color:var(--teal-dark);font-size:12px;font-weight:700;margin-bottom:12px}
.feature-card p{color:var(--muted)}
.feature-card .more{font-size:13px;color:var(--teal-dark);font-weight:800}
.split{
  display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;align-items:center
}
.split.reverse{grid-template-columns:minmax(0,1fr) 280px}
.split.reverse .media-box{order:2}
.media-box{
  margin:0;width:100%;height:190px;border-radius:20px;background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;overflow:hidden
}
.media-box.square{height:220px}
.media-box.tall{height:340px}
.media-box.banner{height:220px}
.media-box img{width:100%;height:100%;object-fit:contain;object-position:center}
.image-space{width:66%;height:52%;border-radius:18px;background:linear-gradient(135deg,var(--soft),#fff);border:1px dashed var(--line)}
.ribbon{
  background:var(--ink);color:#eaf7f5;border-radius:22px;padding:24px;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center
}
.ribbon h2{color:#fff}.ribbon p{color:#d5e9e7;margin:0;max-width:760px}
.ribbon .btn.secondary{border-color:rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff}
.timeline{display:grid;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:8px 22px}
.timeline-item{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.timeline-item:last-child{border-bottom:0}
.timeline-item time{font-size:13px;color:var(--teal-dark);font-weight:800}
.status-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.status-card{padding:18px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}
.status-card b{display:inline-flex;min-height:30px;align-items:center;padding:0 10px;border-radius:999px;background:var(--soft);color:var(--teal-dark);margin-bottom:10px}
.status-card:nth-child(2) b{background:#fff7e4;color:#886713}
.status-card:nth-child(3) b{background:#fff0ec;color:#9b5142}
.article-hero{padding:12px 0 28px;border-bottom:1px solid var(--line);margin-bottom:24px}
.article-hero h1{font-size:30px}
.article-hero .summary{max-width:780px;color:var(--muted)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:30px;align-items:start}
.article-body{min-width:0}
.article-block{padding:24px 0;border-bottom:1px solid var(--line)}
.article-block:first-child{padding-top:0}
.article-block p{margin-bottom:16px}
.side-card{position:sticky;top:150px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px}
.side-card h2{font-size:16px}
.side-card a{display:block;padding:10px 0;border-bottom:1px solid var(--line);color:var(--teal-dark);font-weight:700;font-size:13px}
.side-card a:last-child{border-bottom:0}
.quote{padding:18px 20px;border-left:4px solid var(--teal);background:var(--soft2);border-radius:0 16px 16px 0;color:var(--ink);font-weight:700}
.rules{display:grid;gap:12px}
.rule{padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:16px}
.rule strong{color:var(--ink)}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:15px 17px;margin-bottom:10px}
.faq summary{cursor:pointer;color:var(--ink);font-weight:800}
.faq details p{margin-top:12px;color:var(--muted)}
.site-footer{background:var(--ink);color:#dcefed;padding:36px 0 88px}
.footer-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:20px;border-bottom:1px solid rgba(121,217,209,.2)}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand img{height:30px;width:auto;object-fit:contain}
.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px;color:#fff}.footer-brand span{font-size:12px;color:#9fc2be}
.footer-top{font-size:13px;color:#bfe0dc}
.footer-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;padding:24px 0}
.footer-links h2{font-size:14px;color:#7bdad1;margin-bottom:8px}
.footer-links a{display:block;font-size:13px;margin:5px 0;color:#dcefed}
.footer-note{font-size:13px;color:#b9d1ce;padding-top:18px;border-top:1px solid rgba(121,217,209,.16)}
.footer-copy{font-size:12px;color:#86aaa6}
.backdrop{position:fixed;z-index:94;inset:0;background:rgba(7,42,40,.46);opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}
.backdrop.open{opacity:1;visibility:visible;pointer-events:auto}
.category-drawer{
  position:fixed;z-index:100;right:0;top:24px;bottom:0;width:min(520px,92vw);background:#fff;
  box-shadow:-18px 0 50px rgba(16,47,46,.16);transform:translateX(100%);visibility:hidden;pointer-events:none;transition:.22s ease
}
.category-drawer.open{transform:none;visibility:visible;pointer-events:auto}
.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--line)}
.drawer-head div{display:flex;flex-direction:column}.drawer-head strong{color:var(--ink)}.drawer-head span{font-size:12px;color:var(--muted)}
.drawer-head button,.search-sheet button{min-height:40px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:0 12px;cursor:pointer}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:18px;overflow:auto;max-height:calc(100vh - 90px)}
.drawer-grid a{padding:14px;border-radius:14px;background:var(--soft2);border:1px solid transparent}
.drawer-grid a:hover{border-color:var(--line);background:var(--soft)}
.drawer-grid b{display:block;color:var(--ink)}.drawer-grid span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.search-sheet{
  position:fixed;z-index:101;left:50%;top:118px;transform:translate(-50%,-10px);width:min(620px,calc(100vw - 32px));
  background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 26px 70px rgba(16,47,46,.18);
  opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease;padding:20px
}
.search-sheet.open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.search-sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.search-sheet-head div{display:flex;flex-direction:column}.search-sheet-head strong{color:var(--ink)}.search-sheet-head span{font-size:12px;color:var(--muted)}
.search-shortcuts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.search-shortcuts a{min-height:46px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--soft2);border:1px solid var(--line);color:var(--teal-dark);font-weight:700}
.mobile-tabs{display:none}
@media(max-width:860px){
  body{padding-top:92px;padding-bottom:52px}
  .main-nav{display:none}
  .hero,.article-layout{grid-template-columns:1fr}
  .hero-panel{min-height:auto}
  .feature-grid{grid-template-columns:1fr 1fr}.feature-card.large{grid-row:auto;grid-column:1/-1;min-height:auto}
  .split,.split.reverse{grid-template-columns:1fr}.split.reverse .media-box{order:0}
  .media-box{height:190px}.media-box.square{height:210px}.media-box.tall{height:320px}
  .side-card{position:static}
  .status-grid{grid-template-columns:1fr}
  .mobile-tabs{position:fixed;z-index:86;left:0;right:0;bottom:0;height:52px;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 24px rgba(16,47,46,.08)}
  .mobile-tabs a{display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}
  .mobile-tabs a.active{color:var(--teal-dark);font-weight:800;border-top:2px solid var(--teal)}
  .site-footer{padding-bottom:84px}
  .footer-links{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:620px){
  .wrap{width:min(100% - 28px,1120px)}
  h1{font-size:27px}.article-hero h1{font-size:25px}
  .brand-text{display:none}
  .brand-image{min-width:0}
  .app-link,.menu-button{padding:0 11px;font-size:13px}
  .hero-copy{padding-top:10px}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.large{grid-column:auto}
  .focus-row{grid-template-columns:1fr;gap:6px}
  .focus-row .meta{text-align:left}
  .timeline-item{grid-template-columns:1fr;gap:6px}
  .ribbon{grid-template-columns:1fr}
  .drawer-grid{grid-template-columns:1fr}
  .search-shortcuts{grid-template-columns:1fr 1fr}
  .footer-head{align-items:flex-start;gap:14px}
}