:root{
  --bg:#F5FAFE;--deep:#E7F2FA;--surface:#FFFFFF;--soft:#D7EAF6;--title:#16324A;--text:#2A4156;--muted:#4E6A80;--aux:#6E8899;--brand:#4AA3E0;--bright:#6BB8EC;--navy:#1B4A6E;--mist:#EAF5FC;--border:rgba(74,163,224,.16);--border-strong:rgba(74,163,224,.42);--shadow:0 12px 28px rgba(27,74,110,.08);--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}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--surface);color:var(--navy);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}.skip-link:focus{top:8px}.site-header{position:relative;z-index:70}.topline{position:fixed;z-index:75;top:0;left:0;right:0;height:22px;background:var(--navy);color:#fff;font-size:12px}.topline-inner,.masthead-inner,.tabs-inner{max-width:var(--max);margin:0 auto;padding:0 20px}.topline-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:#fff;min-width:44px;height:44px;padding:0 6px}.masthead{position:fixed;z-index:74;top:22px;left:0;right:0;height:60px;background:var(--surface);border-bottom:1px solid var(--border)}.masthead-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px}.brand-link{justify-self:start;display:inline-flex;align-items:center;min-width:44px;min-height:44px}.brand-logo{display:block;height:28px;width:auto;max-width:150px;object-fit:contain;object-position:center}.brand-fallback{font-weight:800;font-size:16px;letter-spacing:.06em;color:var(--title)}.drawer-open{justify-self:center;min-width:74px;height:44px;padding:0 18px;border:1px solid var(--border-strong);border-radius:999px;background:var(--surface);color:var(--navy);font-weight:700}.app-entry{justify-self:end;display:inline-flex;align-items:center;justify-content:center;min-width:84px;height:44px;border-radius:999px;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff;font-size:14px;font-weight:700}.tabs{position:fixed;z-index:73;top:82px;left:0;right:0;height:40px;background:var(--mist);border-bottom:1px solid var(--border)}.tabs-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:8px}.tab-link{display:inline-flex;align-items:center;justify-content:center;min-width:84px;height:32px;border-radius:8px;color:var(--navy);font-size:13px}.tab-link.is-active{background:var(--brand);color:#fff}.site-main{min-height:70vh;padding:150px 20px 72px}.container{width:min(100%,var(--max));margin:0 auto}.page-hero{padding:30px 0 16px}.eyebrow{margin:0 0 8px;color:var(--brand);font-size:12px;font-weight:800;letter-spacing:.12em}.page-hero h1,.cover-copy h1{margin:0;color:var(--title);font-size:24px;line-height:1.3}.lede{max-width:800px;margin:14px 0 0;color:var(--muted)}h2{font-size:20px;line-height:1.35;color:var(--title)}h3{font-size:16px;line-height:1.45;color:var(--title)}p{margin:0 0 1em}.section{margin-top:30px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.section-head h2{margin:0}.section-head p{margin:0;color:var(--aux);font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}.card-pad{padding:22px}.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))}.feature-card{overflow:hidden}.feature-card .card-body{padding:18px}.feature-card h2,.feature-card h3{margin:0 0 8px}.feature-card p{color:var(--muted)}.media-slot{display:flex;align-items:center;justify-content:center;width:100%;background:var(--mist);border:1px solid var(--border);overflow:hidden}.media-slot img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.media-placeholder{display:block;width:100%;height:100%;background:linear-gradient(135deg,var(--mist),var(--deep))}.media-banner{height:260px;border-radius:14px}.media-card{height:180px}.media-wide{height:200px}.media-app{height:min(360px,52vw);min-height:260px}.cover-copy{padding:22px 0 0}.cover-copy .brand-kicker{display:block;margin-bottom:8px;color:var(--brand);font-weight:800;letter-spacing:.08em}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--border-strong)}.btn:hover,.drawer-open:hover,.app-entry:hover,.tab-link:hover{filter:brightness(.98);transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(74,163,224,.38);outline-offset:2px}.number-list{display:grid;gap:10px;counter-reset:item}.number-row{display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:start;padding:16px;background:#fff;border:1px solid var(--border);border-radius:10px}.number-row .num{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;background:var(--brand);color:#fff;font-weight:800}.number-row h3{margin:0 0 4px}.number-row p{margin:0;color:var(--muted)}.shelf{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.shelf a,.shelf-card{display:flex;flex-direction:column;min-height:132px;padding:18px;border:1px solid var(--border);border-radius:12px;background:#fff}.shelf strong{color:var(--title);margin-bottom:8px}.shelf span{color:var(--muted);font-size:13px}.timeline{position:relative;display:grid;gap:16px;padding-left:24px}.timeline:before{content:"";position:absolute;left:8px;top:10px;bottom:10px;width:2px;background:var(--soft)}.timeline-item{position:relative;background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}.timeline-item:before{content:"";position:absolute;left:-22px;top:24px;width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px var(--mist)}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--mist);color:var(--navy);font-size:12px;font-weight:700}.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.note-card{padding:20px;background:#fff;border:1px solid var(--border);border-radius:12px}.note-card h3{margin:0 0 8px}.note-card p{color:var(--muted)}.prose{max-width:860px}.prose h2{margin:32px 0 10px}.prose h3{margin:24px 0 8px}.prose p,.prose li{color:var(--text)}.prose ul,.prose ol{padding-left:1.3em}.notice{padding:18px 20px;border-left:4px solid var(--brand);background:var(--mist);border-radius:0 10px 10px 0;color:var(--navy)}.quote-box{padding:22px;border:1px solid var(--border-strong);border-radius:12px;background:#fff}.faq-list{display:grid;gap:14px}.faq-item{padding:20px;background:#fff;border:1px solid var(--border);border-radius:12px}.faq-item h2{margin:0 0 9px;font-size:16px}.faq-item p{margin:0;color:var(--muted)}.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.contact-card{padding:22px;border-radius:12px;background:#fff;border:1px solid var(--border)}.contact-card h2{margin-top:0}.contact-card a{display:inline-flex;align-items:center;min-height:44px;color:var(--navy);font-weight:700}.index-late{display:grid;gap:16px}.mini-faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mini-faq article{padding:18px;border:1px solid var(--border);border-radius:12px;background:#fff}.mini-faq h3{margin:0 0 6px}.mini-faq p{margin:0;color:var(--muted)}.app-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:24px;align-items:center}.app-icon{width:48px;height:48px;border-radius:12px;overflow:hidden;background:var(--mist);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin-bottom:12px}.app-icon img{width:48px;height:48px;object-fit:contain}.site-footer{background:var(--navy);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.25);font-size:13px;padding:36px 20px calc(28px + env(safe-area-inset-bottom))}.footer-inner{max-width:var(--max);margin:0 auto}.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:22px;border-bottom:1px solid rgba(234,245,252,.18)}.footer-logo-link{display:flex;align-items:center;min-height:44px}.footer-logo{filter:none}.footer-brand .brand-fallback{color:#fff}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px;color:#fff}.footer-brand span{color:#CFE5F4}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding:24px 0}.footer-grid section{display:flex;flex-direction:column;gap:7px}.footer-grid h2{margin:0 0 4px;font-size:13px;color:#fff}.footer-grid a{display:flex;align-items:center;color:#E7F2FA;min-height:44px}.footer-note{max-width:800px;color:#D7EAF6}.copyright{margin-bottom:0;color:#C7DCEB}.page-overlay{position:fixed;inset:0;z-index:80;background:rgba(22,50,74,.42);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.page-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;z-index:90;top:0;right:0;width:min(400px,86vw);height:100dvh;background:#fff;box-shadow:-18px 0 45px rgba(27,74,110,.16);transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s}.drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:72px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:var(--mist)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand span{font-weight:800;color:var(--title)}.icon-close{min-width:56px;min-height:44px;border:1px solid var(--border-strong);border-radius:9px;background:#fff;color:var(--navy)}.drawer-scroll{height:calc(100dvh - 72px);overflow-y:auto;padding:18px}.drawer-group{margin-bottom:24px}.drawer-group h2{margin:0 0 8px;font-size:13px;color:var(--aux)}.drawer-group a{display:flex;flex-direction:column;padding:12px 10px;border-radius:9px}.drawer-group a:hover{background:var(--mist)}.drawer-group strong{font-size:14px;color:var(--title)}.drawer-group span{font-size:12px;color:var(--muted)}.search-panel{position:fixed;z-index:91;left:50%;top:90px;width:min(760px,calc(100% - 32px));transform:translate(-50%,-18px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.search-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:#fff;border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:20px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;color:var(--title)}.search-card label{display:block;margin-bottom:7px;color:var(--muted);font-size:13px}.search-card input{width:100%;height:46px;border:1px solid var(--border-strong);border-radius:10px;padding:0 14px;color:var(--title);background:#fff}.search-presets{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}.search-presets a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 14px;border-radius:9px;background:var(--mist);color:var(--navy);font-weight:700}.search-status{margin:12px 0 0;color:var(--muted);font-size:13px}.mobile-bar{display:none}.is-locked{overflow:hidden}.compact-links{display:flex;flex-wrap:wrap;gap:10px}.compact-links a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;background:#fff;border:1px solid var(--border);border-radius:9px;color:var(--navy);font-weight:700}.metric-free{font-size:13px;color:var(--aux)}
@media (max-width:900px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.shelf{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3,.note-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.app-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:700px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.topline-inner,.masthead-inner{padding-left:16px;padding-right:16px}.tabs{display:none}.site-main{padding:102px 16px 56px}.masthead-inner{grid-template-columns:1fr auto 1fr;gap:6px}.brand-logo{max-width:94px}.drawer-open{min-width:66px;padding:0 12px}.app-entry{min-width:76px;padding:0 10px}.page-hero{padding-top:22px}.grid-2,.grid-3,.grid-4,.note-grid,.contact-grid,.mini-faq{grid-template-columns:1fr}.shelf{grid-template-columns:1fr}.section{margin-top:24px}.card-pad{padding:18px}.media-banner{height:260px}.media-card{height:180px}.media-wide{height:200px}.app-layout{gap:16px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.site-footer{padding-bottom:calc(84px + env(safe-area-inset-bottom))}.mobile-bar{position:fixed;z-index:76;left:0;right:0;bottom:0;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(--border)}.mobile-bar a{display:flex;align-items:center;justify-content:center;min-width:0;min-height:48px;color:var(--navy);font-size:12px}.mobile-bar a.is-active{background:var(--brand);color:#fff}.search-panel{top:0;left:0;width:100%;height:100dvh;transform:none;background:var(--navy);padding:22px 16px}.search-panel.is-open{transform:none}.search-card{height:100%;background:var(--navy);border:0;box-shadow:none;color:#fff;padding:0}.search-head{color:#fff}.search-card label{color:#E7F2FA}.search-card input{background:#fff;color:var(--title)}.search-presets a{background:#fff;color:var(--navy)}.search-status{color:#E7F2FA}.search-card .icon-close{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}.page-overlay{z-index:78}.drawer{z-index:90}.mobile-bar{z-index:76}}
@media (max-width:420px){.topline-inner{padding:0 10px}.masthead-inner{padding:0 10px}.app-entry{font-size:13px;min-width:70px}.drawer-open{min-width:62px}.footer-grid{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.mt-14{margin-top:14px}.mt-16{margin-top:16px}.note-stack{grid-template-columns:1fr}