:root{--bg:#F4F8FC;--sub:#E8F1FA;--paper:#fff;--ink:#0E2A44;--body:#1C3A56;--muted:#3D5C78;--blue:#1E6FD9;--bright:#6BA8F0;--deep:#0E4A9E;--line:rgba(30,111,217,.26);--shadow:0 12px 28px rgba(14,42,68,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;overflow-x:hidden;background:var(--bg);color:var(--body);font:15px/1.75 system-ui,-apple-system,"Microsoft YaHei",sans-serif;padding-top:102px}body.dialog-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--deep);outline-offset:2px}h1,h2,h3,p{margin-top:0}h1{font-size:24px;line-height:1.3;color:var(--ink)}h2{font-size:20px;line-height:1.4;color:var(--ink)}h3{font-size:16px;color:var(--ink)}p{line-height:1.75}img{display:block;object-fit:contain;object-position:center;max-width:100%}.container{max-width:960px;padding:30px 20px 64px;margin:auto}.topbar{position:fixed;z-index:30;inset:0 0 auto;height:62px;border-bottom:3px solid var(--blue);background:var(--sub)}.top-inner{max-width:960px;height:59px;margin:auto;padding:0 16px;display:flex;align-items:center;gap:12px}.brand{display:flex;align-items:center;gap:8px;min-width:134px;color:var(--ink)}.brand-img{width:42px;height:30px;display:grid;place-items:center}.brand-img img{height:28px;width:42px}.brand strong{font-size:16px;display:block;line-height:1.1}.brand small{font-size:12px;display:block;line-height:1.5;letter-spacing:.14em}.top-pill{margin:auto;border:1px solid var(--line);background:#fff;border-radius:30px;height:34px;padding:3px 20px;white-space:nowrap;color:var(--ink)}.top-actions{display:flex;gap:8px}.top-actions button,.close{min-height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);padding:0 13px;white-space:nowrap}.quick-strip{position:fixed;z-index:25;top:62px;left:0;right:0;height:40px;background:#f1f8ff;border-bottom:1px solid var(--line)}.quick-inner{max-width:960px;padding:0 20px;margin:auto;display:flex;align-items:center;gap:35px;height:100%}.quick-link{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}.quick-square{width:14px;height:14px;border:2px solid var(--blue);border-radius:0 0 0 4px}.quick-link.selected{font-weight:700;color:var(--ink)}.quick-link.selected .quick-square{background:var(--blue);box-shadow:0 6px 16px rgba(30,111,217,.24)}.eyebrow,.small-count{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--deep)}.crumb{font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:center;margin-bottom:22px}.crumb a{color:var(--deep)}.inner-intro{max-width:760px;margin-bottom:24px}.inner-intro p{max-width:720px}.visual,.banner-image,.portrait,.app-icon{background:var(--bg);border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.visual{width:min(100%,320px);height:168px}.visual img{width:100%;height:100%}.banner-image{height:200px;width:100%;margin-bottom:24px}.banner-image img{width:100%;height:100%}.portrait{height:320px;width:240px;margin-bottom:14px}.portrait img{height:100%;width:100%}.app-icon{width:64px;height:64px;margin-bottom:18px}.app-icon img{width:48px;height:48px}.lead-visual{margin:0 0 25px}.content-unit{background:#fff;border:1px solid var(--line);padding:23px 25px;border-radius:14px;box-shadow:var(--shadow);margin-bottom:17px}.content-unit h2{margin-top:4px}.content-unit p:last-child{margin-bottom:0}.page-layout{display:grid;grid-template-columns:1fr;gap:10px}.layout-错廊 .content-unit:nth-child(even){margin-left:8%;background:#f7fbfe}.layout-横廊 .content-unit:nth-child(odd){border-left:6px solid var(--blue)}.layout-文绕廊 .content-unit:nth-child(3n+1){max-width:84%;margin-left:auto}.layout-廊页 .content-unit:nth-child(even){max-width:88%;background:var(--sub)}.layout-状态条 .content-unit{border-top:4px solid var(--bright)}.layout-条款 .content-unit{box-shadow:none}.closing,.home-legal,.home-brand,.home-faq{padding:25px;margin-top:28px;background:var(--sub);border-radius:14px;border:1px solid var(--line)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 0}.btn{height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:11px;padding:0 20px;background:linear-gradient(135deg,#6BA8F0 0%,#1E6FD9 54%,#0E4A9E 100%);color:#F4F8FC;font-size:14px;white-space:nowrap;box-shadow:0 6px 16px rgba(30,111,217,.24);transition:box-shadow .18s,filter .18s}.btn-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn:hover,.btn-secondary:hover,.top-actions button:hover{filter:brightness(1.05);box-shadow:0 0 0 3px rgba(107,168,240,.5),0 10px 24px rgba(14,74,158,.24)}.btn:active,.top-actions button:active{filter:brightness(1.06);box-shadow:0 0 0 4px rgba(226,178,58,.36),0 0 22px rgba(30,111,217,.5)}.home-hero{padding:22px 0 38px;max-width:740px;border-bottom:1px solid var(--line)}.home-hero .index-trail{color:var(--deep);font-size:13px;letter-spacing:.12em}.home-hero h1{margin:16px 0}.home-hero .slogan{font-size:21px;color:var(--deep);font-weight:750}.feature{display:flex;gap:26px;align-items:center;justify-content:space-between;margin:24px 0;padding:25px;border:1px solid var(--line);border-radius:14px;background:#fff}.feature .feature-text{max-width:550px;flex:1}.feature .visual{width:240px;flex:0 0 240px;height:160px}.feature h2{margin-bottom:12px}.feature p{margin-bottom:10px}.feature .btn{margin-top:8px}.feature.offset{max-width:85%;margin-left:0}.feature.offset.alternate{margin-left:auto;flex-direction:row-reverse}.feature.text-wrap{align-items:flex-start}.feature.media-top{display:block}.feature.media-top .portrait{margin:auto auto 18px}.feature.media-top .app-icon{margin:-40px auto 18px;position:relative;background:#fff}.feature.media-top .feature-text{max-width:none}.feature:not(.media-top):nth-of-type(even){background:#f7fbfe}.home-section-label{margin:40px 0 10px}.home-faq details{padding:13px 0;border-bottom:1px solid var(--line)}.home-faq summary{cursor:pointer;font-weight:700;color:var(--ink)}.site-footer{background:var(--ink);border-top:2px solid var(--blue);color:var(--sub);font-size:13px;padding:38px 16px 60px}.footer-inner{max-width:960px;margin:auto}.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:30px}.footer-brand img{width:42px;height:28px}.footer-brand strong,.footer-brand small{display:block}.footer-brand small{font-size:12px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.footer-groups h2{font-size:15px;color:#e8f1fa}.footer-groups a{display:block;color:#e8f1fa;margin:7px 0}.footer-groups a:hover{text-decoration:underline}.footer-note{padding-top:18px;margin-top:25px;border-top:1px solid rgba(255,255,255,.2)}.copyright{margin-bottom:0}.overlay{position:fixed;inset:0;z-index:40;background:rgba(14,42,68,.48)}.overlay[hidden]{display:none;pointer-events:none}.menu-panel,.search-panel{position:fixed;z-index:45;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .18s;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.menu-panel.opened,.search-panel.opened{visibility:visible;pointer-events:auto;opacity:1}.menu-panel{left:16px;top:70px;width:min(560px,calc(100vw - 32px));max-height:70vh;border-left:8px solid var(--blue);border-radius:14px;display:flex;flex-direction:column}.panel-head,.search-head{display:flex;align-items:center;justify-content:space-between;padding:13px 18px;border-bottom:1px solid var(--line)}.panel-brand{display:flex;gap:8px;align-items:center}.panel-brand img{width:42px;height:28px}.panel-scroll{overflow-y:auto;padding:4px 18px 16px}.menu-group h2{margin:16px 0 8px;font-size:15px}.menu-list{display:grid;grid-template-columns:1fr 1fr;gap:8px}.menu-list a{display:block;background:#f7fbfe;border-radius:9px;padding:10px}.menu-list b{display:block;font-size:14px;color:var(--deep)}.menu-list span{display:block;font-size:12px;color:var(--muted)}.search-panel{right:16px;top:70px;width:min(420px,calc(100vw - 32px));padding:0 18px 18px;border-radius:14px;background:var(--sub)}.search-panel .search-head{padding-left:0;padding-right:0}.search-panel p{margin-top:12px}.search-panel label{display:block;font-size:13px;margin-bottom:6px}.search-panel input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;color:var(--ink)}.search-results{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.search-results a{background:#fff;text-align:center;border-radius:8px;padding:10px}.mobile-bottom{display:none}.faq-item{margin-bottom:14px;padding:22px;background:white;border:1px solid var(--line);border-radius:14px}.faq-item h2{font-size:17px}.faq-item p{margin-bottom:0}
@media(max-width:700px){body{padding-top:62px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}.container{padding:24px 16px 52px}.top-inner{gap:7px;padding:0 12px}.brand{min-width:0;flex:1}.brand-img{width:30px}.brand-img img{width:30px}.top-pill,.quick-strip{display:none}.top-actions{gap:5px}.top-actions button{min-height:44px;padding:0 9px}.feature,.feature.offset,.feature.offset.alternate{max-width:none;margin:16px 0;display:block;padding:20px}.feature .visual{width:min(100%,320px);height:168px;margin:0 auto 16px}.feature.media-top .portrait{width:240px;height:320px}.layout-错廊 .content-unit:nth-child(even),.layout-文绕廊 .content-unit:nth-child(3n+1),.layout-廊页 .content-unit:nth-child(even){margin-left:0;max-width:none}.content-unit{padding:20px}.footer-groups{grid-template-columns:repeat(2,1fr)}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;z-index:29;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--sub);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{text-align:center;height:48px;display:grid;place-items:center;font-size:13px;color:var(--muted)}.mobile-bottom a.selected{color:var(--ink);border-top:3px solid var(--blue);box-shadow:0 -5px 16px rgba(30,111,217,.24);font-weight:700}.menu-panel{top:68px;max-height:70vh}.menu-list{grid-template-columns:1fr}.search-panel{inset:0;width:100%;height:100dvh;border-radius:0;background:var(--ink);color:var(--sub);overflow:auto}.search-panel .search-head{margin-top:10px}.search-panel .close{color:var(--ink)}.search-panel input{background:#fff}.search-results a{color:var(--ink)}.home-hero .slogan{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* 91 2026 editorial edition: retained blue, ice-blue, amber and coral palette */
.about-cover .visual{height:200px}.about-cover img{object-fit:contain}.home-hero .slogan{max-width:680px}.site-footer a:hover{text-decoration:underline}.content-unit{scroll-margin-top:115px}.visual img,.portrait img,.brand-img img{object-fit:contain;object-position:center}.feature .feature-text p{max-width:650px} @media(max-width:560px){.top-pill{display:none}.home-hero h1{font-size:24px}.feature .visual{width:100%;max-width:100%}}