:root{
  --bg:#F3FBFA;--bg-deep:#E4F4F1;--card:#FFFFFF;--secondary:#D4EFEC;--ink:#0D2E2B;
  --text:#163834;--muted:#4A706C;--soft:#6A8E89;--brand:#0E9A88;--bright:#1EC8B6;
  --deep:#0A6B5E;--porcelain:#F7FFFE;--line:rgba(14,154,136,.16);--line-strong:rgba(14,154,136,.42);
  --shadow:0 12px 28px rgba(10,107,94,.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",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:122px;padding-bottom:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.wrap{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.skip-link{position:fixed;left:16px;top:-60px;z-index:1200;background:var(--card);color:var(--deep);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}
.skip-link:focus{top:10px}
.topline{position:fixed;left:0;right:0;top:0;height:22px;background:var(--deep);color:#fff;z-index:900;font-size:12px}
.topline-inner{height:22px;display:flex;align-items:center;justify-content:space-between}
.plain-top-btn{border:0;background:transparent;color:#fff;padding:0 4px;height:22px;min-width:44px}
.mastbar{position:fixed;left:0;right:0;top:22px;height:60px;background:var(--card);border-bottom:1px solid var(--line);z-index:890}
.mastbar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px}
.brand-link{justify-self:start;display:flex;align-items:center;min-height:44px;max-width:180px}
.brand-image-slot:empty{display:none}.brand-logo{height:28px;width:auto;max-width:150px;object-fit:contain;object-position:center}
.brand-fallback{font-weight:800;color:var(--ink);font-size:16px}.brand-image-slot:not(:empty)+.brand-fallback{display:none}
.menu-trigger,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px;font-weight:700}
.menu-trigger{justify-self:center;border:1px solid var(--line-strong);background:var(--porcelain);color:var(--deep);padding:0 20px}
.app-link{justify-self:end;padding:0 17px;background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);color:#fff}
.quicktabs{position:fixed;left:0;right:0;top:82px;height:40px;background:var(--porcelain);border-bottom:1px solid var(--line);z-index:880}
.quicktabs-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:8px}
.quicktabs a{height:28px;display:inline-flex;align-items:center;padding:0 15px;border-radius:999px;color:var(--deep);font-size:13px}
.quicktabs a.active{background:var(--brand);color:#fff}
.site-main{min-height:60vh;padding:28px 0 64px}
.page-hero,.section-card,.content-card,.legal-section,.faq-card,.index-section,.feature-card,.shelf-row,.timeline-card,.note-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.page-hero{padding:26px;margin-bottom:22px}
.eyebrow{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--secondary);color:var(--deep);font-size:12px;font-weight:700;letter-spacing:.04em}
h1,h2,h3{margin-top:0;color:var(--ink);line-height:1.3}h1{font-size:24px;margin-bottom:12px}h2{font-size:20px;margin-bottom:10px}h3{font-size:16px;margin-bottom:8px}
p{margin:0 0 14px}.lead{font-size:16px;color:var(--muted);max-width:820px}.meta-note{font-size:13px;color:var(--soft)}
.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);color:#fff}.btn-secondary{background:#fff;border:1px solid var(--line-strong);color:var(--deep)}
.btn:hover,.menu-trigger:hover,.app-link:hover,.quicktabs a:hover,.footer-links a:hover,.mobile-bottom a:hover{filter:brightness(.97)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(30,200,182,.35);outline-offset:2px}
.image-slot{width:100%;background:var(--porcelain);border:1px dashed var(--line-strong);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.wide-slot{height:200px}.card-slot{height:180px}.app-slot{height:min(360px,60vw)}.brand-slot{height:220px}.image-slot:empty::after{content:"";display:block;min-height:1px}
.cover-copy{padding:22px 4px 0}.cover-copy .brand-kicker{font-weight:800;color:var(--brand);letter-spacing:.08em;font-size:13px}.cover-copy h1{margin-top:8px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.feature-card,.content-card,.section-card,.index-section,.legal-section,.note-card{padding:20px}.feature-card .image-slot{margin-bottom:16px}
.index-section{margin-top:20px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head p{margin:0;color:var(--muted);font-size:13px;max-width:560px}.number-list{display:grid;gap:10px}.number-item{display:grid;grid-template-columns:48px 1fr;gap:14px;padding:14px 0;border-top:1px solid var(--line)}.number-item:first-child{border-top:0}.number-item .num{font-weight:900;color:var(--brand);font-size:22px;line-height:1}.number-item p{margin:4px 0 0;color:var(--muted)}
.shelf{display:grid;gap:10px}.shelf-row{display:grid;grid-template-columns:110px 1fr auto;align-items:center;gap:14px;padding:14px 16px;box-shadow:none}.shelf-row .tag{font-size:12px;color:var(--deep);font-weight:800}.shelf-row p{margin:0;color:var(--muted)}.shelf-row a{font-weight:700;color:var(--brand);white-space:nowrap}
.hot-list{display:grid;gap:0}.hot-item{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:18px 0;border-top:1px solid var(--line)}.hot-item:first-child{border-top:0}.hot-item .big-num{font-size:32px;font-weight:900;color:var(--brand);line-height:1}.hot-item p{margin:4px 0 0;color:var(--muted)}
.timeline{position:relative;margin-left:8px;padding-left:24px;border-left:2px solid var(--line-strong);display:grid;gap:14px}.timeline-card{position:relative;padding:16px 18px;box-shadow:none}.timeline-card::before{content:"";position:absolute;left:-32px;top:22px;width:12px;height:12px;border-radius:50%;background:var(--brand);border:3px solid var(--bg)}.status{display:inline-flex;align-items:center;min-height:26px;padding:0 9px;border-radius:999px;background:var(--secondary);color:var(--deep);font-size:12px;font-weight:700;margin-bottom:8px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px;align-items:start}.article-main{display:grid;gap:16px}.side-index{position:sticky;top:140px;padding:18px;background:var(--porcelain);border:1px solid var(--line);border-radius:12px}.side-index h2{font-size:16px}.side-index a{display:block;padding:8px 0;color:var(--deep);border-top:1px solid var(--line)}.side-index a:first-of-type{border-top:0}.side-index a:hover{color:var(--brand)}
.definition-list{display:grid;gap:12px}.definition-item{padding:16px 0;border-top:1px solid var(--line)}.definition-item:first-child{border-top:0}.definition-item strong{display:block;color:var(--ink);margin-bottom:5px}.definition-item p{margin:0}
.steps{counter-reset:step;display:grid;gap:12px}.step{counter-increment:step;position:relative;padding:18px 18px 18px 60px;background:var(--card);border:1px solid var(--line);border-radius:12px}.step::before{content:counter(step);position:absolute;left:16px;top:16px;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;font-weight:800}.step p{margin:0;color:var(--muted)}
.faq-list{display:grid;gap:12px}.faq-card{padding:18px;box-shadow:none}.faq-card h2{font-size:16px}.faq-card p{margin:0}
.notice-box{padding:16px 18px;border-radius:12px;background:var(--secondary);color:var(--text);border:1px solid var(--line-strong)}.notice-box strong{color:var(--ink)}
.site-footer{background:var(--deep);color:#D4EFEC;border-top:1px solid rgba(247,255,254,.3);padding:34px 0 20px;font-size:13px}.footer-grid{display:grid;grid-template-columns:2.1fr repeat(4,1fr);gap:24px}.footer-brand p{max-width:390px;color:#D4EFEC}.footer-logo-row{display:flex;align-items:center;gap:10px;margin-bottom:14px}.footer-logo{height:28px;width:auto;max-width:130px;object-fit:contain}.footer-logo-row strong{display:block;color:#fff;font-size:16px}.footer-logo-row span{display:block;color:#D4EFEC;font-size:11px;letter-spacing:.08em}.footer-links h2{font-size:13px;color:#fff;margin-bottom:8px}.footer-links a{display:block;padding:4px 0;color:#D4EFEC}.footer-bottom{margin-top:24px;padding-top:16px;border-top:1px solid rgba(247,255,254,.22)}
.page-overlay{position:fixed;inset:0;background:rgba(3,38,34,.45);z-index:980;opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.page-overlay.open{opacity:1;visibility:visible;pointer-events:auto}.panel-open{overflow:hidden}
.menu-panel{position:fixed;left:50%;bottom:0;transform:translate(-50%,105%);width:min(720px,100%);max-height:70vh;background:var(--card);z-index:1000;border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0;box-shadow:0 -20px 60px rgba(10,107,94,.18);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s}.menu-panel.open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.panel-head{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line)}.panel-brand{display:flex;align-items:center;gap:10px}.panel-logo{height:28px;width:auto;max-width:130px;object-fit:contain}.panel-close,.search-head button{min-width:44px;min-height:44px;border:1px solid var(--line-strong);border-radius:10px;background:#fff;color:var(--deep)}.panel-scroll{overflow:auto;max-height:calc(70vh - 60px);padding:16px 18px 28px}.menu-group{margin-bottom:20px}.menu-group h2{font-size:13px;color:var(--soft);letter-spacing:.08em;margin-bottom:8px}.menu-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.menu-list a{display:block;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--porcelain);min-height:72px}.menu-list a.current{border-color:var(--line-strong);background:var(--secondary)}.menu-list strong{display:block;color:var(--ink);font-size:14px}.menu-list span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:3px}
.search-layer{position:fixed;left:0;right:0;top:82px;z-index:995;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);transition:.18s}.search-layer.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.search-head strong{color:var(--ink)}.search-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-card input{width:100%;height:44px;border:1px solid var(--line-strong);border-radius:10px;padding:0 12px;color:var(--text);background:var(--porcelain)}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;background:var(--secondary);color:var(--deep);font-weight:700}.search-empty{margin:12px 0 0;color:var(--muted)}
.mobile-bottom{display:none}
.kicker-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.kicker{background:var(--porcelain);border:1px solid var(--line);border-radius:10px;padding:14px}.kicker strong{display:block;color:var(--ink);margin-bottom:4px}.kicker span{font-size:13px;color:var(--muted)}
.quote-note{margin:0;padding:18px;border-left:4px solid var(--brand);background:var(--porcelain);border-radius:0 10px 10px 0;color:var(--text)}
.two-col-copy{columns:2;column-gap:32px}.two-col-copy p{break-inside:avoid}
.link-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.link-list a{display:block;padding:14px 16px;border:1px solid var(--line);background:var(--porcelain);border-radius:10px;color:var(--deep);font-weight:700}.link-list span{display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:3px}
@media (max-width:900px){.footer-grid{grid-template-columns:2fr repeat(2,1fr)}.article-grid{grid-template-columns:1fr}.side-index{position:static}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:700px){
 body{padding-top:82px;padding-bottom:calc(64px + env(safe-area-inset-bottom))}.wrap{width:calc(100% - 32px)}.quicktabs{display:none}.site-main{padding-top:20px}.mastbar-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}.brand-link{max-width:118px}.brand-logo{max-width:100px}.menu-trigger{padding:0 14px}.app-link{padding:0 11px}.grid-3,.grid-2,.kicker-grid,.link-list{grid-template-columns:1fr}.grid-4{grid-template-columns:1fr}.page-hero,.section-card,.content-card,.index-section,.legal-section,.feature-card,.note-card{padding:17px}.banner-slot{height:220px}.wide-slot{height:180px}.card-slot{height:170px}.shelf-row{grid-template-columns:78px 1fr}.shelf-row a{grid-column:2}.number-item{grid-template-columns:42px 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.footer-brand{grid-column:1/-1}.menu-panel{max-height:78vh}.panel-scroll{max-height:calc(78vh - 60px)}.menu-list{grid-template-columns:1fr}.search-layer{top:0;bottom:0;background:var(--deep);padding:16px;transform:none}.search-layer.open{display:block}.search-card{width:100%;height:100%;margin:0;background:var(--deep);color:#fff;border:0;border-radius:0;box-shadow:none;padding:0;display:flex;flex-direction:column}.search-head{min-height:52px}.search-head strong{color:#fff}.search-head button{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}.search-card label{color:#D4EFEC}.search-card input{background:#fff}.search-presets{display:grid;grid-template-columns:repeat(2,1fr)}.search-presets a{border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;border-radius:10px;justify-content:center}.search-empty{color:#D4EFEC}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:870;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--line)}.mobile-bottom a{height:48px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--deep)}.mobile-bottom a.active{background:var(--brand);color:#fff}.two-col-copy{columns:1}.hot-item{grid-template-columns:48px 1fr}.hot-item .big-num{font-size:26px}.section-head{align-items:flex-start;flex-direction:column;gap:4px}}
@media (max-width:420px){.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.shelf-row{grid-template-columns:1fr}.shelf-row a{grid-column:auto}.search-presets{grid-template-columns:1fr}}

.app-mini-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}.app-mini-head strong{display:block;color:var(--ink);font-size:16px}.app-mini-head span{display:block;color:var(--muted);font-size:12px}.app-icon-slot{width:58px;height:58px;border-style:solid;flex:0 0 58px}.app-icon-slot img{width:48px;height:48px;object-fit:contain}