:root{--bg:#F3FBFA;--deep:#E4F4F1;--surface:#FFFFFF;--soft:#D4EFEC;--ink:#0D2E2B;--body:#163834;--muted:#4A706C;--assist:#6A8E89;--brand:#0E9A88;--bright:#1EC8B6;--deepteal:#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(--body);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.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.skip-link{position:fixed;left:12px;top:-60px;z-index:120;background:#fff;color:var(--deepteal);padding:10px 14px;border-radius:10px}.skip-link:focus{top:10px}.site-top-fixed{position:fixed;inset:0 0 auto;z-index:60}.teal-line{height:22px;background:var(--deepteal);color:#fff;font-size:12px}.top-inner,.curtain-inner,.quick-tabs-inner,.section-inner,.footer-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}.top-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:#fff;padding:0 6px;min-width:44px;cursor:pointer}.curtain-bar{height:60px;background:#fff;border-bottom:1px solid var(--line)}.curtain-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-link{justify-self:start;display:inline-flex;align-items:center;min-height:44px}.brand-logo{height:28px;width:auto;object-fit:contain}.brand-text{font-weight:800;font-size:16px;color:var(--ink)}.drawer-open,.app-link{min-height:44px;padding:0 16px;border-radius:10px;border:1px solid var(--line-strong);display:inline-flex;align-items:center;justify-content:center;font-size:14px}.drawer-open{justify-self:center;background:#fff;color:var(--deepteal);cursor:pointer}.app-link{justify-self:end;color:#fff;background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);border-color:transparent}.quick-tabs{height:40px;background:var(--porcelain);border-bottom:1px solid var(--line)}.quick-tabs-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:8px}.quick-tabs a{font-size:13px;min-height:32px;padding:4px 14px;border-radius:999px;display:inline-flex;align-items:center;color:var(--deepteal)}.quick-tabs a.is-current{background:var(--brand);color:#fff}.site-main{padding-top:122px}.hero,.page-hero,.content-section{padding:28px 0}.hero{padding-top:26px}.hero-card,.page-hero-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:18px}.hero-copy{max-width:820px;margin:20px auto 0;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--deepteal);font-weight:700;letter-spacing:.06em}.eyebrow::before{content:"";width:24px;height:2px;background:var(--bright);border-radius:2px}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;color:var(--ink);margin:8px 0 12px}.hero p,.page-hero p{margin:0;color:var(--muted)}.hero-copy>p{max-width:820px;margin:0 auto}.hero-actions,.section-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:18px}.btn-primary,.btn-secondary{height:42px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap;min-width:44px}.btn-primary{background:linear-gradient(135deg,#1EC8B6 0%,#0E9A88 55%,#0A6B5E 100%);color:#fff}.btn-secondary{background:#fff;color:var(--deepteal);border:1px solid var(--line-strong)}a:hover{opacity:.9}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(30,200,182,.32);outline-offset:2px}.media-slot{background:var(--porcelain);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.feature-slot{height:180px}.wide-slot{height:200px}.app-slot{height:min(360px,58vw)}.brand-slot{height:190px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head h2,.content-card h2,.page-hero h2{font-size:20px;line-height:1.35;margin:0;color:var(--ink)}.section-head p{max-width:620px;margin:0;color:var(--muted)}.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}.card,.content-card,.list-panel,.timeline-panel,.policy-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:var(--shadow)}.card h3,.content-card h3{font-size:16px;color:var(--ink);margin:14px 0 7px}.card p,.content-card 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ul{margin:6px 0 0;padding-left:1.2em}.prose li{margin:4px 0}.note-box{background:var(--deep);border-left:4px solid var(--brand);border-radius:10px;padding:14px 16px;color:var(--body)}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.tag{display:inline-flex;align-items:center;min-height:32px;padding:4px 10px;border-radius:999px;background:var(--deep);color:var(--deepteal);font-size:13px}.timeline{position:relative}.timeline::before{content:"";position:absolute;left:17px;top:12px;bottom:12px;width:2px;background:var(--soft)}.timeline li{position:relative;padding:0 0 18px 52px}.timeline li:last-child{padding-bottom:0}.timeline-dot{position:absolute;left:8px;top:4px;width:20px;height:20px;border-radius:50%;background:var(--brand);border:5px solid var(--surface);box-shadow:0 0 0 2px var(--soft)}.status{display:inline-flex;align-items:center;min-height:28px;padding:3px 9px;border-radius:999px;background:var(--deep);color:var(--deepteal);font-size:12px;font-weight:700}.timeline h3{margin:6px 0 4px}.timeline p{margin:0;color:var(--muted)}.app-layout{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:20px;align-items:start}.icon-row{display:flex;align-items:center;gap:12px}.app-icon-slot{width:48px;height:48px;flex:0 0 48px}.app-icon-slot img{width:48px;height:48px;object-fit:contain}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.faq-item h2,.faq-item h3{font-size:16px;color:var(--ink);margin:0 0 8px}.faq-item p{margin:0;color:var(--body)}.quote-line{padding:14px 16px;background:var(--porcelain);border:1px solid var(--line);border-radius:12px;color:var(--deepteal);font-weight:700}.site-footer{background:var(--deepteal);color:var(--soft);border-top:1px solid rgba(247,255,254,.22);padding:34px 0 72px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-logo{height:28px;width:auto;object-fit:contain;filter:brightness(0) invert(1)}.footer-brand strong{display:block;color:#fff;font-size:16px}.footer-brand span{display:block;font-size:12px;color:var(--soft)}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-grid h2{font-size:13px;margin:0 0 10px;color:#fff}.footer-grid a{display:block;font-size:13px;padding:3px 0;color:var(--soft)}.footer-note,.copyright{font-size:13px;color:var(--soft);margin:22px 0 0}.copyright{margin-top:8px}.overlay{position:fixed;inset:0;background:rgba(13,46,43,.45);z-index:78;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;left:50%;bottom:0;z-index:90;width:min(720px,100%);max-height:70vh;background:var(--surface);border-radius:16px 16px 0 0;box-shadow:0 -20px 50px rgba(10,107,94,.18);transform:translate(-50%,105%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s}.site-drawer.is-open{transform:translate(-50%,0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:28px;width:auto;object-fit:contain}.drawer-brand strong{display:block;color:var(--ink)}.drawer-brand span{display:block;font-size:12px;color:var(--muted)}.drawer-close,.search-close{min-height:44px;padding:0 14px;border:1px solid var(--line-strong);border-radius:10px;background:#fff;color:var(--deepteal);cursor:pointer}.drawer-scroll{overflow:auto;max-height:calc(70vh - 74px);padding:12px 16px 22px}.drawer-group{padding:10px 0}.drawer-group h2{font-size:13px;color:var(--assist);margin:0 0 6px}.drawer-group a{display:grid;grid-template-columns:120px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.drawer-group strong{font-size:14px;color:var(--ink)}.drawer-group span{font-size:13px;color:var(--muted)}.search-layer{position:fixed;left:0;right:0;top:82px;z-index:85;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:0 auto;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:16px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.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(--ink);background:#fff}.search-presets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}.search-presets a{min-height:42px;display:flex;align-items:center;justify-content:center;border:1px solid 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@media (max-width:640px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.quick-tabs{display:none}.site-main{padding-top:82px}.top-inner,.curtain-inner,.section-inner,.footer-inner{width:calc(100% - 32px)}.curtain-inner{grid-template-columns:1fr auto 1fr;gap:8px}.brand-logo{height:26px;max-width:110px}.drawer-open,.app-link{padding:0 10px;font-size:13px}.hero,.page-hero,.content-section{padding:20px 0}.hero-card,.page-hero-card{padding:14px}.banner-slot{height:220px}.wide-slot{height:180px}.feature-slot{height:170px}.section-head{align-items:start;flex-direction:column}.numbered-list li,.shelf-list li,.topic-index li{grid-template-columns:auto 1fr}.list-arrow{display:none}.footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:28px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:70;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);box-shadow:0 -8px 22px rgba(10,107,94,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:12px;color:var(--deepteal)}.mobile-bottom a.is-current{background:var(--brand);color:#fff}.site-drawer{max-height:78vh}.drawer-scroll{max-height:calc(78vh - 74px)}.drawer-group a{grid-template-columns:1fr}.drawer-group span{margin-top:-6px}.search-layer{top:0;bottom:0;background:var(--deepteal);padding:16px;display:flex;align-items:flex-start}.search-card{width:100%;margin:0;background:var(--deepteal);border:0;box-shadow:none;color:#fff;padding:0}.search-head{min-height:52px}.search-head strong,.search-card label{color:#fff}.search-close{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}.search-card input{background:#fff;color:var(--ink)}.search-presets{grid-template-columns:1fr 1fr}.search-presets a{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.22);color:#fff}.search-empty{color:#fff}.kicker-grid{grid-template-columns:1fr}.app-slot{height:320px}}