:root{
  --bg:#F3FBFA;--bg-deep:#E4F4F1;--card:#FFFFFF;--mint:#D4EFEC;--ink:#0D2E2B;--text:#163834;--muted:#4A706C;--assist:#6A8E89;--brand:#0E9A88;--bright:#1EC8B6;--deep:#0A6B5E;--porcelain:#F7FFFE;--border:rgba(14,154,136,.16);--border-strong:rgba(14,154,136,.42);--shadow:0 12px 28px rgba(10,107,94,.08);--max:1120px;
}
*{box-sizing:border-box}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;padding-top:122px}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;object-fit:contain;object-position:center}button,input{font:inherit}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:#fff;color:var(--deep);padding:10px 14px;border-radius:8px;border:1px solid var(--border-strong)}.skip-link:focus{top:8px}.topline{position:fixed;top:0;left:0;right:0;height:22px;background:var(--deep);color:#fff;z-index:120}.topline-inner,.mastbar-inner{max-width:var(--max);margin:auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;height:100%}.topline{font-size:12px;line-height:22px}.text-button{border:0;background:transparent;color:#fff;cursor:pointer;min-height:22px;padding:0 6px}.mastbar{position:fixed;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid var(--border);z-index:119}.mastbar-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:16px}.brand-link{justify-self:start;min-height:44px;display:flex;align-items:center}.brand-logo-slot{display:flex;align-items:center;min-width:100px}.brand-logo{height:28px;width:auto}.brand-text{font-weight:800;font-size:16px;color:var(--ink)}.drawer-open,.app-link,.drawer-close,.search-close{min-height:44px;border-radius:10px;font-size:14px;cursor:pointer}.drawer-open{justify-self:center;border:1px solid var(--border-strong);background:var(--porcelain);color:var(--deep);padding:0 22px;font-weight:700}.app-link{justify-self:end;display:flex;align-items:center;padding:0 18px;color:#fff;background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);font-weight:700}.quick-signs{position:fixed;top:82px;left:0;right:0;height:40px;background:var(--porcelain);border-bottom:1px solid var(--border);display:flex;justify-content:center;align-items:center;gap:8px;z-index:118}.quick-signs a{font-size:13px;padding:6px 16px;border-radius:999px;color:var(--deep)}.quick-signs a.is-current{background:var(--brand);color:#fff}.site-main{min-height:60vh}.container{max-width:var(--max);margin:0 auto;padding:32px 16px 48px}.page-hero{padding:8px 0 22px}.eyebrow{margin:0 0 7px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.05em}.page-hero h1,.cover-copy h1{margin:0;color:var(--ink);font-size:24px;line-height:1.3}.lede{max-width:780px;margin:12px 0 0;color:var(--muted)}h2{font-size:20px;line-height:1.35;color:var(--ink)}h3{font-size:16px;line-height:1.4;color:var(--ink)}p{margin:0 0 1em}.section{margin:28px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px}.section-head h2{margin:0}.section-head p{margin:0;color:var(--muted);font-size:13px}.card{background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:20px}.soft-card{background:var(--porcelain);border:1px solid var(--border);border-radius:12px;padding:20px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.stack{display:grid;gap:16px}.image-slot{background:var(--porcelain);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain}.image-slot.banner{height:260px}.image-slot.medium{height:200px}.image-slot.tile{height:180px}.image-slot.app-portrait{height:340px;max-width:420px;margin:0 auto}.cover-copy{padding-top:18px}.cover-copy .tagline{font-size:20px;color:var(--deep);font-weight:800;margin:8px 0}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;min-width:130px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700;white-space:nowrap}.btn-primary{color:#fff;background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%)}.btn-secondary{background:#fff;color:var(--deep);border:1px solid var(--border-strong)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(30,200,182,.35);outline-offset:2px}.btn:hover,.app-link:hover{filter:brightness(.98)}.card:hover{border-color:var(--border-strong)}.number-list{display:grid;gap:10px;counter-reset:item}.number-row{display:grid;grid-template-columns:48px 1fr;gap:12px;align-items:start;padding:14px 0;border-bottom:1px solid var(--border)}.number-row:last-child{border-bottom:0}.num{width:40px;height:40px;border-radius:10px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}.number-row h3{margin:0 0 4px}.number-row p{margin:0;color:var(--muted)}.shelf{display:grid;gap:0;border-top:1px solid var(--border)}.shelf-row{display:grid;grid-template-columns:140px 1fr auto;gap:18px;padding:16px 0;border-bottom:1px solid var(--border);align-items:center}.shelf-row strong{color:var(--ink)}.shelf-row span{color:var(--muted)}.shelf-row a{color:var(--deep);font-weight:700}.timeline{position:relative;margin-left:10px;padding-left:28px;border-left:2px solid var(--border-strong)}.timeline-item{position:relative;padding:0 0 24px}.timeline-item::before{content:"";position:absolute;left:-35px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--brand);border:3px solid var(--bg)}.timeline-item h3{margin:0 0 6px}.status{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;background:var(--mint);color:var(--deep);font-size:12px;font-weight:700;margin-bottom:8px}.note-strip{padding:16px 18px;background:var(--mint);border:1px solid var(--border);border-radius:12px;color:var(--deep)}.article-sections{display:grid;gap:16px}.article-sections section{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px}.article-sections h2{margin:0 0 8px}.article-sections p:last-child{margin-bottom:0}.mini-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.mini-links a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--border-strong);border-radius:9px;background:#fff;color:var(--deep);font-weight:700}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px 20px}.faq-item h2{font-size:16px;margin:0 0 8px}.faq-item p{margin:0}.app-feature-grid{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:24px;align-items:start}.icon-badge{display:flex;align-items:center;gap:12px;margin-bottom:16px}.icon-badge img{width:48px;height:48px;border-radius:12px}.index-intro{max-width:820px}.index-intro p{margin-top:10px}.legal-callout{background:var(--bg-deep);border:1px solid var(--border);padding:18px;border-radius:12px}.site-footer{background:var(--deep);color:#D4EFEC;border-top:1px solid rgba(247,255,254,.35)}.footer-inner{max-width:var(--max);margin:auto;padding:30px 16px 82px}.footer-brand{display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(247,255,254,.24);padding-bottom:18px;margin-bottom:20px}.footer-brand strong{display:block;color:#fff}.footer-brand span{display:block;font-size:12px}.footer-logo-slot{min-width:0}.footer-columns{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-columns h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-columns a{display:block;font-size:13px;padding:3px 0;color:#D4EFEC}.footer-note,.copyright{font-size:13px}.footer-note{margin:22px 0 8px;border-top:1px solid rgba(247,255,254,.2);padding-top:18px}.copyright{margin:0;color:#D4EFEC}.page-mask{position:fixed;inset:0;background:rgba(13,46,43,.34);z-index:180;opacity:0;transition:opacity .18s;pointer-events:none}.page-mask.is-visible{opacity:1;pointer-events:auto}.drawer-panel{position:fixed;left:50%;bottom:0;transform:translate(-50%,110%);width:min(720px,100%);max-height:70vh;background:#fff;border-radius:16px 16px 0 0;z-index:190;box-shadow:0 -12px 40px rgba(10,107,94,.18);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s}.drawer-panel.is-open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.drawer-head{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand strong{color:var(--ink)}.drawer-close,.search-close{border:1px solid var(--border-strong);background:#fff;color:var(--deep);padding:0 14px}.drawer-scroll{overflow:auto;max-height:calc(70vh - 64px);padding:16px 18px 24px}.drawer-scroll section+section{margin-top:18px}.drawer-scroll h2{font-size:14px;margin:0 0 10px;color:var(--deep)}.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.drawer-grid a{display:block;padding:12px;border:1px solid var(--border);border-radius:10px;background:var(--porcelain)}.drawer-grid b{display:block;color:var(--ink);margin-bottom:3px}.drawer-grid span{display:block;color:var(--muted);font-size:12px;line-height:1.55}.search-panel{position:fixed;top:82px;left:0;right:0;z-index:191;visibility:hidden;pointer-events:none;transform:translateY(-14px);opacity:0;transition:.18s}.search-panel.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.search-card{max-width:760px;margin:14px auto 0;background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.search-card label{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}.search-card input{width:100%;height:44px;border:1px solid var(--border-strong);border-radius:10px;padding:0 12px;color:var(--ink);background:#fff}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;display:flex;align-items:center;padding:0 12px;border-radius:9px;background:var(--porcelain);border:1px solid var(--border);color:var(--deep);font-weight:700}.search-empty{margin:12px 0 0;color:var(--muted);font-size:13px}.mobile-bottom{display:none}.lock-scroll{overflow:hidden}.index-app-copy{align-self:center}.plain-list{margin:0;padding-left:1.2em}.plain-list li{margin:.45em 0}.kicker-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.kicker{padding:14px;border-radius:10px;background:var(--mint);color:var(--deep);font-weight:700;text-align:center}.contact-channels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.contact-channels .card p{margin-bottom:0}.meta-note{font-size:13px;color:var(--assist)}
@media (max-width:820px){body{padding-top:82px;padding-bottom:48px}.quick-signs{display:none}.container{padding-top:24px}.grid-3,.grid-2,.footer-columns,.drawer-grid,.contact-channels{grid-template-columns:1fr}.app-feature-grid{grid-template-columns:1fr}.shelf-row{grid-template-columns:1fr;gap:5px}.shelf-row a{justify-self:start}.image-slot.banner{height:220px}.image-slot.tile{height:170px}.kicker-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.drawer-panel{width:100%;max-height:78vh}.drawer-scroll{max-height:calc(78vh - 64px)}.search-panel{top:0;bottom:0;background:var(--deep);padding:20px 16px;overflow:auto}.search-card{margin:0 auto;background:var(--deep);border-color:rgba(247,255,254,.28);color:#fff;box-shadow:none}.search-head strong,.search-card label{color:#fff}.search-close{background:transparent;color:#fff;border-color:rgba(247,255,254,.5)}.search-card input{background:#fff}.search-presets a{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#fff}.search-empty{color:#D4EFEC}.mobile-bottom{position:fixed;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(5,1fr);background:#fff;border-top:1px solid var(--border);z-index:130}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--deep)}.mobile-bottom a.is-current{background:var(--brand);color:#fff}.footer-inner{padding-bottom:76px}.mastbar-inner{gap:8px}.brand-logo-slot{min-width:72px}.drawer-open{padding:0 15px}.app-link{padding:0 12px}.topline-inner,.mastbar-inner{padding-left:16px;padding-right:16px}.page-hero h1,.cover-copy h1{font-size:24px}.section{margin:24px 0}}
@media (max-width:420px){.brand-logo{max-width:90px}.brand-text{font-size:15px}.drawer-open,.app-link{font-size:13px}.kicker-grid{grid-template-columns:1fr 1fr}.button-row .btn{flex:1 1 140px}}