*{box-sizing:border-box}
:root{
  --bg:#E7F4F8;--deep:#D7ECF2;--panel:#F3FAFC;--soft:#EAF6F9;
  --title:#163038;--text:#1F3C44;--muted:#4A6E78;--quiet:#6A8C96;
  --blue:#7EB8E0;--cyan:#6EC9D4;--bay:#1A3A44;--mist:#F3FAFC;--seaweed:#5A8A6A;
  --line:rgba(26,58,68,.14);--focus:rgba(110,201,212,.50);--shadow:0 12px 28px rgba(22,48,56,.08)
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.layer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;object-fit:contain;object-position:center}
button,input{font:inherit}
button{cursor:pointer}
.wrap{width:min(1000px,calc(100% - 32px));margin:0 auto}
.site-header{position:fixed;inset:0 0 auto;z-index:50;box-shadow:0 4px 16px rgba(22,48,56,.05)}
.topline{height:20px;background:var(--bay);color:var(--mist);font-size:12px}
.topline-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.text-button{border:0;background:transparent;color:var(--mist);min-height:20px;padding:0 4px}
.brandbar{height:54px;background:var(--blue);border-bottom:1px solid var(--cyan)}
.brandbar-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brandmark{display:flex;align-items:center;min-height:44px;font-size:16px;font-weight:700;color:var(--bay)}
.brand-logo-slot{display:flex;align-items:center;min-width:88px;height:24px}
.brand-logo-slot img{height:24px;width:auto;max-width:148px}
.brand-actions{display:flex;align-items:center;gap:8px}
.mini-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(26,58,68,.24);border-radius:9px;padding:0 14px;background:var(--mist);color:var(--bay);font-size:14px;font-weight:700}
.menu-button{background:rgba(243,250,252,.7)}
.pointnav{height:44px;background:var(--mist);border-bottom:1px solid var(--line)}
.pointnav-inner{height:44px;display:flex;justify-content:center;align-items:center;gap:76px}
.pointnav a{height:44px;min-width:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:13px;color:var(--muted)}
.pointnav a span{width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.pointnav a.is-current{color:var(--bay);font-weight:700}
.pointnav a.is-current span{background:var(--bay)}
.site-main{padding-top:118px;min-height:70vh}
.page-shell{padding:42px 0 64px}
.page-head{margin-bottom:28px}
.page-head h1,.home-intro h1{font-size:24px;line-height:1.3;color:var(--title);margin:0 0 12px}
h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}
h3{font-size:16px;line-height:1.5;color:var(--title);margin:0 0 8px}
p{margin:0 0 14px}
.eyebrow{font-size:12px;color:var(--quiet);letter-spacing:.08em;margin-bottom:8px}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.section{padding:34px 0;border-top:1px solid var(--line)}
.section:first-child{border-top:0}
.line-intro{border-left:3px solid var(--cyan);padding:6px 0 8px 20px;max-width:790px}
.home-intro{padding:42px 0 28px}
.home-intro .tagline{font-size:20px;color:var(--title);font-weight:800;margin-bottom:12px}
.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:9px;font-size:14px;font-weight:800;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,#7EB8E0 0%,#6EC9D4 100%);color:var(--title)}
.btn-secondary{background:var(--mist);border-color:var(--bay);color:var(--bay)}
a:hover,.text-button:hover,.menu-button:hover,.close-button:hover{filter:brightness(.97)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.media-slot{width:100%;min-height:140px;background:linear-gradient(180deg,var(--deep),var(--panel));border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{max-height:100%;width:100%;height:100%}
.short-cover{height:188px}
.banner-slot{height:200px}
.app-visual{height:300px}
.icon-slot{width:48px;height:48px;min-height:48px;border-radius:10px}
.icon-slot img{width:48px;height:48px}
.home-section{padding:34px 0}
.stagger{display:grid;gap:24px}
.stagger article{background:var(--panel);border:1px solid var(--line);border-radius:11px;overflow:hidden;box-shadow:var(--shadow)}
.stagger-copy{padding:22px}
.stagger .reverse .stagger-copy{order:-1}
.note-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:stretch}
.note-columns article{background:var(--soft);border-left:3px solid var(--cyan);border-radius:8px;padding:18px;min-height:220px}
.note-columns article .media-slot{margin-bottom:14px;min-height:120px}
.center-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:760px;margin:18px auto 0}
.center-cards article{text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px}
.phase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.phase-grid article{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px}
.status-list{display:grid;gap:10px}
.status-row{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:14px 16px}
.status-label{font-weight:800;color:var(--title)}
.product-band{background:var(--deep);border-block:1px solid var(--line);padding:34px 0}
.product-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);gap:28px;align-items:center}
.product-title{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.product-title h2{margin:0}
.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.faq-mini article{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:18px}
.brand-story{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:26px}
.article-stack{display:grid;gap:18px}
.article-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px}
.interleave{display:grid;gap:18px}
.interleave article{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px}
.interleave article:nth-child(even) .copy{order:-1}
.strip-layout .short-cover{margin-bottom:22px}
.vertical-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.vertical-notes article{background:var(--panel);border-top:4px solid var(--cyan);border-radius:8px;padding:20px;min-height:300px}
.single-journal{max-width:760px;margin:0 auto;display:grid;gap:16px}
.single-journal article{padding:22px 24px;background:var(--panel);border-left:3px solid var(--seaweed);border-radius:8px}
.memo-list{display:grid;gap:12px}
.memo-item{display:grid;grid-template-columns:38px 1fr;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px}
.memo-num{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--deep);color:var(--bay);font-weight:800}
.method-steps{display:grid;gap:16px}
.method-steps article{border-bottom:1px solid var(--line);padding:0 0 18px}
.topic-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.topic-list article{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px}
.topic-list article:first-child{grid-column:1/-1}
.policy-list{display:grid;gap:18px}
.policy-list section{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px}
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.help-grid article{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px}
.qa-list{display:grid;gap:12px}
.qa-list details{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.qa-list summary{cursor:pointer;font-weight:800;color:var(--title)}
.qa-list details p{margin:12px 0 0}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.contact-grid article{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px}
.bay-menu{position:fixed;z-index:90;left:0;right:0;top:0;height:58vh;min-height:360px;background:var(--mist);transform:translateY(-102%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s ease;overflow:auto;border-bottom:1px solid var(--focus);box-shadow:var(--shadow)}
.bay-menu.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}
.bay-menu-head{height:64px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.bay-menu-brand{display:flex;align-items:center;gap:10px}
.close-button{min-width:64px;min-height:44px;border:1px solid var(--bay);border-radius:9px;background:var(--mist);color:var(--bay);font-weight:700}
.bay-menu-grid{display:grid;grid-template-columns:1.15fr 1.15fr .9fr 1.2fr;gap:22px;padding-top:18px;padding-bottom:24px}
.bay-menu-grid h2{font-size:14px;margin-bottom:8px}
.bay-menu-grid a{display:block;padding:8px 0;border-bottom:1px solid var(--line)}
.bay-menu-grid b{display:block;font-size:14px;color:var(--title)}
.bay-menu-grid span{display:block;font-size:12px;color:var(--muted);line-height:1.5;margin-top:2px}
.overlay{position:fixed;z-index:80;inset:0;background:rgba(20,48,56,.38);opacity:0;pointer-events:none;transition:opacity .2s ease}
.overlay.is-open{opacity:1;pointer-events:auto}
.search-layer{position:fixed;z-index:95;left:0;right:0;top:74px;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .18s ease}
.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}
.search-card{background:var(--mist);border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);padding:22px}
.search-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.search-top strong{font-size:20px;color:var(--title)}
.search-top p{color:var(--muted);margin:4px 0 12px}
.search-card label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}
.search-card input{width:100%;height:44px;border:1px solid var(--line);border-radius:9px;background:white;color:var(--text);padding:0 12px}
.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.search-presets a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border-radius:8px;background:var(--soft);border:1px solid var(--line);font-size:14px}
.site-footer{background:#143038;color:#E7F4F8;border-top:1px solid var(--cyan);padding:30px 0 74px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:24px}
.footer-logo-slot{width:90px;height:24px;display:flex;align-items:center}
.footer-logo-slot img{height:24px;width:auto}
.footer-brand small{display:block;font-size:11px;color:#BFD4DA;margin-top:2px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.footer-grid h2{font-size:13px;color:#E7F4F8;margin-bottom:8px}
.footer-grid a{min-height:44px;display:flex;align-items:center;font-size:13px;color:#D6E6EA;padding:4px 0}
.footer-note{font-size:13px;color:#C8DBE0;border-top:1px solid rgba(231,244,248,.16);margin-top:22px;padding-top:18px}
.mobile-bottom{display:none}
.prose p{max-width:820px}
.muted{color:var(--muted)}
.callout{background:var(--soft);border:1px solid var(--focus);border-radius:10px;padding:18px 20px}
.inline-links{display:flex;flex-wrap:wrap;gap:10px}
.inline-links a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;background:var(--mist);border:1px solid var(--line);border-radius:8px;font-weight:700;color:var(--bay)}
@media (max-width:760px){
  .wrap{width:calc(100% - 32px)}
  .pointnav{display:none}
  .site-main{padding-top:74px}
  .brand-actions{gap:6px}
  .mini-link,.menu-button{padding:0 10px}
  .page-shell{padding:28px 0 72px}
  .home-intro{padding-top:30px}
  .note-columns,.phase-grid,.center-cards,.vertical-notes,.topic-list,.help-grid,.contact-grid,.faq-mini{grid-template-columns:1fr}
  .topic-list article:first-child{grid-column:auto}
  .product-grid{grid-template-columns:1fr}
  .interleave article{grid-template-columns:1fr}
  .interleave article:nth-child(even) .copy{order:0}
  .status-row{grid-template-columns:1fr;gap:4px}
  .bay-menu{height:58vh;min-height:360px}
  .bay-menu-grid{grid-template-columns:1fr 1fr;gap:14px}
  .search-layer{top:0;bottom:0;background:var(--bay);color:var(--mist)}
  .search-layer.is-open{display:flex;align-items:flex-start}
  .search-card{width:100%;height:100%;border:0;border-radius:0;background:var(--bay);color:var(--mist);padding-top:28px}
  .search-top strong,.search-card label{color:var(--mist)}
  .search-top p{color:#C9DDE2}
  .search-card .close-button{background:transparent;color:var(--mist);border-color:rgba(243,250,252,.5)}
  .search-presets a{background:rgba(243,250,252,.08);border-color:rgba(243,250,252,.18);color:var(--mist)}
  .mobile-bottom{position:fixed;z-index:60;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--mist);border-top:1px solid var(--line)}
  .mobile-bottom a{display:grid;place-items:center;font-size:13px;color:var(--muted)}
  .mobile-bottom a.is-current{background:var(--cyan);color:var(--bay);font-weight:800}
  .footer-grid{grid-template-columns:1fr 1fr}
  .site-footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
}
@media (max-width:460px){
  .bay-menu-grid{grid-template-columns:1fr}
  .brand-logo-slot{min-width:72px}
  .footer-grid{grid-template-columns:1fr 1fr}
}

.center-head{text-align:center}.center-head .lead{margin-left:auto;margin-right:auto}.spaced-section{margin-top:20px}