:root{--bg:#F3FBFA;--bg-deep:#E4F4F1;--surface:#FFFFFF;--surface-2:#D4EFEC;--ink:#0D2E2B;--text:#163834;--muted:#4A706C;--assist:#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}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.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.topline{position:fixed;z-index:80;top:0;left:0;right:0;height:22px;background:var(--deep);color:#fff;font-size:12px}.topline-inner,.curtain-inner,.quick-tabs-inner{width:min(var(--max),calc(100% - 32px));height:100%;margin:0 auto;display:flex;align-items:center}.topline-inner{justify-content:space-between}.top-search-btn{border:0;background:transparent;color:#fff;height:22px;padding:0 4px;cursor:pointer}.top-search-btn:focus-visible,.drawer-open:focus-visible,.plain-close:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid rgba(30,200,182,.45);outline-offset:2px}.curtain-bar{position:fixed;z-index:79;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid var(--line)}.curtain-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:12px}.brand-link{justify-self:start;min-height:44px;display:flex;align-items:center}.brand-logo{height:28px;width:auto;object-fit:contain}.brand-fallback{font-size:16px;font-weight:800;color:var(--ink)}.drawer-open{justify-self:center;height:44px;min-width:72px;padding:0 16px;border:1px solid var(--line-strong);border-radius:999px;background:var(--porcelain);color:var(--deep);cursor:pointer}.app-link{justify-self:end;min-height:44px;display:flex;align-items:center;padding:0 14px;border-radius:999px;background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);color:#fff;font-size:14px;font-weight:700}.quick-tabs{position:fixed;z-index:78;top:82px;left:0;right:0;height:40px;background:var(--porcelain);border-bottom:1px solid var(--line)}.quick-tabs-inner{justify-content:center;gap:8px}.quick-tab{height:30px;min-width:92px;padding:0 14px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:13px;color:var(--deep)}.quick-tab:hover{background:var(--bg-deep)}.quick-tab.is-active{background:var(--brand);color:#fff}.site-main{padding-top:122px;min-height:60vh}.page-shell{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:34px 0 64px}.page-hero{padding:30px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,#fff 0%,var(--porcelain) 100%);box-shadow:var(--shadow);margin-bottom:24px}.eyebrow{margin:0 0 8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em}.page-hero h1,.cover-copy h1{margin:0;color:var(--ink);font-size:24px;line-height:1.3}.lead{margin:12px 0 0;color:var(--muted);max-width:820px}.section{margin:22px 0;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.section.soft{background:var(--porcelain)}.section.mint{background:var(--bg-deep)}.section h2{margin:0 0 12px;color:var(--ink);font-size:20px;line-height:1.35}.section h3,.card h3{margin:0 0 8px;color:var(--ink);font-size:16px}.section p{margin:8px 0}.section ul,.section ol{margin:10px 0 0;padding-left:1.25em}.section li+li{margin-top:6px}.grid-2,.grid-3,.grid-4{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff;min-width:0}.card p{margin:6px 0;color:var(--muted)}.card-link{display:block;transition:transform .18s ease,border-color .18s ease}.card-link:hover{transform:translateY(-2px);border-color:var(--line-strong)}.media-slot{width:100%;display:flex;align-items:center;justify-content:center;background:var(--porcelain);border:1px solid var(--line);border-radius:12px;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-hero{height:260px}.media-card{height:180px}.media-wide{height:200px}.media-app{height:360px;max-width:460px;margin:0 auto}.cover-section{padding:24px 0 0}.cover-copy{padding:22px 4px 10px}.cover-copy p{max-width:860px;margin:12px 0;color:var(--muted)}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.btn{min-height:44px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:750}.btn-primary{background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);color:#fff}.btn-secondary{background:#fff;color:var(--deep);border:1px solid var(--line-strong)}.btn:hover{filter:brightness(.98)}.number-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.number-list li{display:grid;grid-template-columns:44px 1fr;gap:12px;align-items:start;padding:14px;background:var(--porcelain);border:1px solid var(--line);border-radius:10px}.num{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:9px;background:var(--brand);color:#fff;font-weight:800}.shelf{border-top:1px solid var(--line)}.shelf-row{display:grid;grid-template-columns:150px 1fr auto;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);align-items:center}.shelf-row strong{color:var(--ink)}.shelf-row span{color:var(--muted)}.shelf-row a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid var(--line-strong);border-radius:9px;color:var(--deep)}.timeline{position:relative;margin:8px 0;padding-left:26px}.timeline:before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:var(--line-strong)}.timeline-item{position:relative;padding:0 0 20px 18px}.timeline-item:before{content:"";position:absolute;left:-23px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px var(--bg-deep)}.timeline-item strong{display:block;color:var(--ink)}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 9px;border-radius:999px;background:var(--surface-2);color:var(--deep);font-size:12px;font-weight:700}.note-box{padding:16px;border-left:4px solid var(--brand);background:var(--porcelain);border-radius:0 10px 10px 0}.article-prose{max-width:860px}.article-prose p{margin:0 0 14px}.article-prose h2{margin:26px 0 10px}.article-prose h3{margin:18px 0 8px}.faq-list{display:grid;gap:12px}.faq-item{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}.faq-item h2{font-size:16px;margin:0 0 8px}.faq-item p{margin:0;color:var(--muted)}.site-footer{background:var(--deep);color:#D4EFEC;border-top:1px solid rgba(247,255,254,.25)}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:34px 0 76px}.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:20px;border-bottom:1px solid rgba(247,255,254,.18)}.footer-logo{height:28px;width:auto;object-fit:contain}.footer-brand-name{font-weight:800;color:#fff}.footer-brand div{display:flex;flex-direction:column;line-height:1.25}.footer-brand strong{color:#fff}.footer-brand span{font-size:12px}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;padding:24px 0}.footer-groups h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-groups a{display:block;font-size:13px;color:#D4EFEC;min-height:32px}.footer-groups a:hover{text-decoration:underline}.footer-note,.footer-copy{font-size:13px;margin:8px 0;color:#D4EFEC}.overlay{position:fixed;z-index:89;inset:0;background:rgba(7,42,38,.44);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;z-index:91;left:50%;bottom:0;width:min(720px,100%);max-height:70vh;transform:translate(-50%,105%);visibility:hidden;pointer-events:none;background:#fff;border-radius:18px 18px 0 0;box-shadow:0 -18px 50px rgba(10,107,94,.22);transition:transform .24s ease,visibility .24s}.site-drawer.is-open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.drawer-head{height:62px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--ink)}.drawer-brand img{height:28px;width:auto;object-fit:contain}.plain-close{min-height:44px;min-width:56px;border:1px solid var(--line);border-radius:10px;background:var(--porcelain);color:var(--deep);cursor:pointer}.drawer-scroll{max-height:calc(70vh - 62px);overflow:auto;padding:16px 18px 26px}.drawer-group{margin-bottom:20px}.drawer-group h2{font-size:13px;color:var(--assist);margin:0 0 8px}.drawer-group a{display:grid;grid-template-columns:110px 1fr;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);min-height:56px}.drawer-group strong{color:var(--ink);font-size:14px}.drawer-group span{color:var(--muted);font-size:13px}.search-layer{position:fixed;z-index:92;top:82px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(720px,calc(100% - 32px));margin:12px auto 0;padding:18px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;color:var(--ink)}.search-card label{display:block;color:var(--muted);margin-bottom:8px}.search-card input{width:100%;min-height:44px;padding:0 12px;border:1px solid var(--line-strong);border-radius:10px;color:var(--ink);background:#fff}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;padding:0 12px;display:inline-flex;align-items:center;border-radius:999px;background:var(--bg-deep);color:var(--deep)}.search-empty{color:var(--muted)}.mobile-bottom{display:none}.kicker{font-size:13px;color:var(--brand);font-weight:800}.mini-meta{font-size:13px;color:var(--assist)}.rule-grid{display:grid;gap:12px}.rule{padding:14px 16px;background:var(--porcelain);border:1px solid var(--line);border-radius:10px}.rule strong{display:block;color:var(--ink);margin-bottom:4px}.two-column-prose{columns:2;column-gap:34px}.two-column-prose p{break-inside:avoid;margin:0 0 14px}.app-intro{display:grid;grid-template-columns:minmax(260px,420px) 1fr;gap:26px;align-items:center}.app-icon-line{display:flex;align-items:center;gap:12px;margin-bottom:12px}.app-icon{width:48px;height:48px;object-fit:contain;border-radius:10px}.index-section{margin:28px 0}.index-section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:12px}.index-section-head h2{margin:0;color:var(--ink);font-size:20px}.index-section-head a{color:var(--deep);font-size:13px;font-weight:700}.content-caption{padding-top:10px;color:var(--assist);font-size:13px}.compact-links{display:flex;flex-wrap:wrap;gap:8px}.compact-links a{min-height:40px;padding:0 12px;display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--deep)}
@media (max-width:800px){.quick-tabs{display:none}.site-main{padding-top:82px}.grid-3,.grid-4{grid-template-columns:1fr 1fr}.footer-groups{grid-template-columns:1fr 1fr}.app-intro{grid-template-columns:1fr}.media-app{height:320px}.two-column-prose{columns:1}.site-drawer{max-height:78vh}.drawer-scroll{max-height:calc(78vh - 62px)}.search-layer{top:0;bottom:0;background:var(--deep)}.search-card{width:100%;height:100%;margin:0;padding:calc(18px + env(safe-area-inset-top)) 16px calc(70px + env(safe-area-inset-bottom));border:0;border-radius:0;background:var(--deep);color:#fff}.search-head{color:#fff}.search-card label,.search-empty{color:#D4EFEC}.search-card input{background:#fff}.search-presets a{background:#fff;color:var(--deep)}.search-card .plain-close{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}.mobile-bottom{position:fixed;z-index:70;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(--line)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px;color:var(--deep)}.mobile-bottom a.is-active{background:var(--brand);color:#fff}.footer-inner{padding-bottom:calc(74px + env(safe-area-inset-bottom))}.page-shell{padding-top:24px}.page-hero{padding:22px}.shelf-row{grid-template-columns:1fr;gap:6px}.drawer-group a{grid-template-columns:92px 1fr}.curtain-inner{width:calc(100% - 24px)}.brand-link,.app-link{min-width:0}.app-link{padding:0 10px}.drawer-open{min-width:64px;padding:0 12px}}
@media (max-width:560px){body{font-size:15px}.page-shell{width:calc(100% - 32px)}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.cover-section{padding-top:16px}.media-hero{height:260px}.media-card{height:180px}.media-wide{height:200px}.section{padding:18px}.page-hero{padding:18px}.footer-groups{grid-template-columns:1fr 1fr;gap:14px}.number-list li{grid-template-columns:40px 1fr}.topline-inner{width:calc(100% - 24px)}.brand-fallback{font-size:15px}.curtain-inner{grid-template-columns:minmax(72px,1fr) auto minmax(72px,1fr)}.app-link{font-size:13px}.drawer-open{font-size:13px}.index-section-head{align-items:start;flex-direction:column;gap:4px}}