:root{
  --bg:#F5FAFE;--deep-bg:#E7F2FA;--paper:#FFFFFF;--sub:#D7EAF6;--title:#16324A;--text:#2A4156;--muted:#4E6A80;--aux:#6E8899;
  --blue:#4AA3E0;--blue2:#6BB8EC;--deep:#1B4A6E;--mist:#EAF5FC;--line:rgba(74,163,224,.16);--line-strong:rgba(74,163,224,.42);
  --shadow:0 12px 28px rgba(27,74,110,.08);--radius:12px;--max:1120px;
}
*{box-sizing:border-box}
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:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
a,button{outline:none}
button{font:inherit}
img{max-width:100%;display:block}
.shell{width:min(calc(100% - 32px),var(--max));margin:0 auto}
.site-fixed-head{position:fixed;top:0;left:0;right:0;z-index:80;box-shadow:0 1px 0 var(--line)}
.thin-line{height:22px;background:var(--deep);color:#fff;font-size:12px;line-height:22px}
.thin-line-inner,.masthead-inner,.tabs-inner{height:100%;display:flex;align-items:center;justify-content:space-between}
.text-button,.drawer-open,.drawer-close,.search-close{border:0;background:transparent;cursor:pointer}
.text-button{color:#fff;min-height:22px;padding:0 4px}
.masthead{height:60px;background:#fff;border-bottom:1px solid var(--line)}
.masthead-inner{position:relative;display:grid;grid-template-columns:1fr auto 1fr;gap:16px}
.brand-link{justify-self:start;display:flex;align-items:center;min-height:44px}
.brand-logo{height:28px;width:auto;max-width:130px;object-fit:contain;object-position:center}
.brand-fallback{font-size:20px;font-weight:800;color:var(--deep)}
.drawer-open{justify-self:center;min-width:76px;height:40px;padding:0 18px;border:1px solid var(--line-strong);border-radius:999px;color:var(--deep);background:var(--mist);font-weight:700;cursor:pointer}
.app-link{justify-self:end;display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;border-radius:999px;color:#fff;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);font-size:14px;font-weight:700}
.section-tabs{height:40px;background:var(--mist);border-bottom:1px solid var(--line)}
.tabs-inner{justify-content:center;gap:10px}
.tab-link{display:inline-flex;align-items:center;justify-content:center;min-width:84px;height:30px;border-radius:999px;font-size:13px;color:var(--deep)}
.tab-link.is-active{background:var(--blue);color:#fff}
.site-main{padding-top:146px;padding-bottom:56px;min-height:70vh}
.page-hero{margin-bottom:24px}
.page-hero .eyebrow,.eyebrow{margin:0 0 6px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
h1,h2,h3{color:var(--title);margin-top:0}
h1{font-size:24px;line-height:1.3;margin-bottom:12px}
h2{font-size:20px;line-height:1.4;margin-bottom:10px}
h3{font-size:16px;line-height:1.45;margin-bottom:8px}
p{margin:0 0 14px}
.lead{font-size:16px;color:var(--muted);max-width:850px}
.section{margin:0 auto 28px}
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:14px}
.section-head p{max-width:720px;color:var(--muted);margin:0}
.card,.panel,.article-block,.notice-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card{padding:18px}
.panel,.article-block{padding:24px}
.notice-box{padding:18px;background:var(--mist);box-shadow:none}
.card p:last-child,.panel p:last-child,.article-block p:last-child,.notice-box p:last-child{margin-bottom:0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.image-slot{display:flex;align-items:center;justify-content:center;width:100%;background:var(--mist);border:1px solid var(--line);border-radius:10px;overflow:hidden;min-height:160px}
.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.banner-slot{height:260px}
.card-image{height:180px;margin-bottom:14px}
.medium-image{height:200px}
.tall-image{height:min(360px,70vw)}
.brand-image{height:220px}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:999px;font-size:14px;font-weight:800}
.btn-primary{color:#fff;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%)}
.btn-secondary{background:#fff;color:var(--deep);border:1px solid var(--line-strong)}
.btn-primary:hover,.btn-secondary:hover,.app-link:hover,.drawer-open:hover{transform:translateY(-1px)}
.btn-primary:focus-visible,.btn-secondary:focus-visible,.app-link:focus-visible,.drawer-open:focus-visible,.tab-link:focus-visible,.footer-nav a:focus-visible,.drawer-groups a:focus-visible,.search-presets a:focus-visible,.mobile-bottom a:focus-visible{outline:3px solid rgba(107,184,236,.45);outline-offset:2px}
.numbered-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.numbered-list li{display:grid;grid-template-columns:44px 1fr;gap:12px;align-items:start;padding:14px 0;border-bottom:1px solid var(--line)}
.numbered-list li:last-child{border-bottom:0}
.number{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--blue);color:#fff;font-weight:800}
.shelf-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.shelf-item{padding:16px 18px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px}
.timeline{position:relative;margin:0;padding:0;list-style:none}
.timeline:before{content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;background:var(--sub)}
.timeline li{position:relative;padding-left:58px;margin-bottom:18px}
.timeline li:before{content:"";position:absolute;left:12px;top:5px;width:16px;height:16px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 6px var(--mist)}
.status{display:inline-flex;min-height:28px;align-items:center;padding:0 10px;border-radius:999px;background:var(--mist);color:var(--deep);font-size:12px;font-weight:800}
.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.note-card{padding:18px;border-radius:12px;background:linear-gradient(180deg,#fff,var(--mist));border:1px solid var(--line)}
.index-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.index-list a{display:block;padding:16px;background:#fff;border:1px solid var(--line);border-radius:10px}
.index-list span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.article-stack{display:grid;gap:18px}
.article-block ul,.article-block ol{margin:8px 0 12px;padding-left:20px}
.article-block li{margin-bottom:6px}
.faq-list{display:grid;gap:14px}
.faq-item{padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px}
.faq-item h2{font-size:16px}
.mini-kicker{display:inline-block;margin-bottom:8px;color:var(--blue);font-size:12px;font-weight:800}
.site-footer{background:var(--deep);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.18);padding:34px 0 calc(34px + env(safe-area-inset-bottom))}
.footer-grid{display:grid;grid-template-columns:1.05fr 1.95fr;gap:36px}
.footer-brandline{display:flex;align-items:center;gap:10px;margin-bottom:14px}.footer-brandline strong{font-size:18px}.footer-brandline span{font-size:13px;opacity:.84}
.footer-brand p{font-size:13px;color:#E7F2FA;opacity:.92}
.footer-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.footer-nav h2{font-size:13px;color:#fff;margin-bottom:8px}.footer-nav a{display:block;padding:3px 0;font-size:13px;color:#E7F2FA;opacity:.9}
.page-overlay{position:fixed;inset:0;background:rgba(13,39,60,.42);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.page-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}
.site-drawer{position:fixed;top:0;right:0;bottom:0;width:min(400px,86vw);z-index:100;background:#fff;transform:translateX(104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;overflow:auto;box-shadow:-18px 0 50px rgba(27,74,110,.16)}
.site-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:#fff;border-bottom:1px solid var(--line);z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-close{min-height:44px;padding:0 10px;color:var(--deep);font-weight:700}
.drawer-groups{padding:8px 16px 24px}.drawer-groups section{padding:12px 0;border-bottom:1px solid var(--line)}.drawer-groups h2{font-size:13px;margin-bottom:4px;color:var(--blue)}.drawer-groups a{display:block;padding:10px;border-radius:10px}.drawer-groups a:hover{background:var(--mist)}.drawer-groups strong{display:block;color:var(--title)}.drawer-groups span{display:block;margin-top:2px;color:var(--muted);font-size:12px;line-height:1.5}
.search-panel{position:fixed;top:82px;left:0;right:0;z-index:95;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:.2s}
.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}
.search-card{background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:20px}.search-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.search-head h2{margin-bottom:0}.search-close{min-height:44px;color:var(--deep);font-weight:700}.search-help{color:var(--muted);margin:12px 0}.search-presets{display:flex;flex-wrap:wrap;gap:10px}.search-presets a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border-radius:999px;background:var(--mist);color:var(--deep);border:1px solid var(--line)}
.ui-locked{overflow:hidden}
.mobile-bottom{display:none}
.hero-branding{padding:18px 4px 0}.hero-branding h1{margin-bottom:8px}.hero-branding .brandline{font-weight:800;color:var(--blue);margin-bottom:8px}.home-copy{max-width:860px}
.split-feature{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:20px;align-items:stretch}.split-feature .content{padding:6px 0}
.simple-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}.simple-table th,.simple-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.simple-table th{background:var(--mist);color:var(--title)}
@media (max-width:900px){
  .grid-3,.grid-4,.note-grid,.index-list{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr}.split-feature{grid-template-columns:1fr}.shelf-list{grid-template-columns:1fr}
}
@media (max-width:700px){
  body{font-size:15px}.shell{width:calc(100% - 32px)}.section-tabs{display:none}.masthead-inner{gap:8px}.brand-logo{max-width:100px}.drawer-open{min-width:66px;padding:0 12px}.app-link{padding:0 12px}.site-main{padding-top:102px;padding-bottom:82px}.site-footer{padding-bottom:88px}.grid-2,.grid-3,.grid-4,.note-grid,.index-list{grid-template-columns:1fr}.panel,.article-block{padding:18px}.section-head{display:block}.section-head p{margin-top:6px}.banner-slot{height:260px}.card-image{height:180px}.medium-image{height:200px}.footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:85;display:grid;grid-template-columns:repeat(5,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--deep)}.mobile-bottom a.is-active{background:var(--blue);color:#fff}.search-panel{top:0;bottom:0;background:var(--deep);padding:18px 0;overflow:auto}.search-card{min-height:100%;border:0;border-radius:0;box-shadow:none;background:var(--deep);color:#fff}.search-card h2,.search-card .eyebrow,.search-card .search-help,.search-close{color:#fff}.search-presets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.search-presets a{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#fff}.site-drawer{width:86vw}.timeline:before{left:15px}.timeline li{padding-left:48px}.timeline li:before{left:8px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}