:root{--brand:#1478F2;--deep:#075DC9;--navy:#0B1F38;--title:#172033;--text:#3E4859;--muted:#6F7A89;--sub:#F7FAFF;--blue:#EDF5FF;--gray:#F5F6F8;--border:rgba(20,120,242,.12);--gb:rgba(30,50,70,.08);--shadow:0 14px 38px rgba(21,67,118,.08);--bshadow:0 16px 42px rgba(20,120,242,.15);--max:1280px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;height:auto;display:block}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip-link{position:fixed;top:-70px;left:12px;z-index:3000;background:#fff;padding:8px 12px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:1000;height:74px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--gb)}.nav-shell{max-width:var(--max);margin:auto;height:74px;padding:0 20px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:9px;min-width:220px}.brand-logo{max-width:128px;max-height:44px;object-fit:contain}.brand-text{font-size:22px;font-weight:850;color:var(--brand)}.brand-tag{font-size:12px;color:var(--deep);background:var(--blue);padding:4px 9px;border-radius:99px}.primary-nav{display:flex;justify-content:center;flex:1}.primary-nav a,.icon-btn,.mobile-nav-btn{min-height:44px;display:flex;align-items:center;justify-content:center;padding:0 11px;border-radius:12px;white-space:nowrap}.primary-nav a{font-size:15px;color:#536072}.primary-nav a:hover,.primary-nav a.active{color:var(--brand);background:var(--blue)}.nav-actions{display:flex;gap:6px}.icon-btn,.mobile-nav-btn{border:1px solid var(--gb);background:#fff;color:#4b596d}.mobile-nav{display:none;height:64px;padding:0 15px;align-items:center;justify-content:space-between}.mobile-brand{max-width:55%}.site-overlay{position:fixed;inset:74px 0 0;z-index:1090;background:rgba(8,32,64,.34);opacity:0;visibility:hidden;pointer-events:none}.site-overlay.visible{opacity:1;visibility:visible}.mega-menu,.search-panel{position:fixed;top:74px;left:0;right:0;z-index:1100;background:#fff;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.18s;box-shadow:0 30px 60px rgba(16,43,74,.16)}body.menu-open .mega-menu,body.search-open .search-panel{visibility:visible;pointer-events:auto;opacity:1;transform:none}.mega-menu-inner,.search-inner{max-width:var(--max);margin:auto;padding:24px 20px 30px;max-height:calc(100vh - 90px);overflow:auto}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.panel-head>div{display:flex;flex-direction:column}.panel-head strong{font-size:22px;color:var(--title)}.panel-head span{font-size:13px;color:var(--muted)}.panel-close{min-height:44px;border:0;background:var(--gray);border-radius:12px;padding:0 15px}.menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.menu-group{padding:16px;border-radius:16px;background:var(--sub);border:1px solid var(--gb)}.menu-group h2{font-size:15px;color:var(--brand);margin:0 0 8px}.menu-group a{display:block;padding:8px;border-radius:10px}.menu-group a:hover{background:#fff}.menu-group b{display:block;color:var(--title)}.menu-group span{display:block;font-size:12px;line-height:1.55;color:var(--muted)}.search-box input{width:100%;height:56px;border:1px solid var(--border);background:var(--sub);border-radius:16px;padding:0 18px;outline:none}.search-keywords{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.search-keywords button{border:0;background:var(--blue);color:var(--deep);padding:8px 12px;border-radius:99px}.search-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.search-links a{padding:14px;border:1px solid var(--gb);border-radius:14px;color:var(--title)}.search-links span{display:block;font-size:12px;color:var(--muted)}.search-empty{background:var(--gray);padding:14px;border-radius:14px}body.panel-lock{overflow:hidden}.container{max-width:var(--max);margin:auto;padding:0 20px}.page-hero{padding:58px 0 34px;background:linear-gradient(180deg,var(--sub),#fff)}.page-kicker{display:inline-flex;gap:8px;align-items:center;color:var(--brand);font-size:13px;font-weight:750}.page-kicker:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand)}h1,h2,h3{color:var(--title);line-height:1.3}.page-hero h1{font-size:clamp(34px,5vw,58px);margin:12px 0}.page-hero p{max-width:850px;color:var(--muted);font-size:17px}.section{padding:52px 0}.section.alt{background:var(--sub)}.section.blue{background:var(--blue)}.section-head{margin-bottom:22px}.section-head h2{font-size:30px;margin:8px 0 0}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.content-card{background:#fff;border:1px solid var(--gb);border-radius:18px;padding:22px;box-shadow:0 8px 24px rgba(21,67,118,.04)}.content-card h3{margin:0 0 8px;font-size:20px}.content-card p{margin:0;color:var(--muted)}.meta{display:block;color:var(--brand);font-size:12px;font-weight:700;margin-bottom:8px}.text-link{display:inline-block;margin-top:12px;color:var(--brand);font-weight:700}.text-link:hover{text-decoration:underline}.list-lines{border-top:1px solid var(--gb)}.list-line{display:grid;grid-template-columns:minmax(170px,.7fr) 1.8fr auto;gap:18px;padding:18px 0;border-bottom:1px solid var(--gb)}.list-line h3,.list-line p{margin:0}.list-line p{color:var(--muted)}.steps{display:grid;gap:12px;counter-reset:step}.step{position:relative;padding:18px 18px 18px 64px;border:1px solid var(--gb);border-radius:16px;background:#fff}.step:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:10px;background:var(--blue);color:var(--brand);display:grid;place-items:center;font-weight:800}.step h3,.step p{margin:0}.step p{color:var(--muted)}.quote-box{padding:30px;border-radius:24px;background:var(--navy);color:#eaf3ff}.quote-box h2{color:#fff;margin-top:0}.quote-box p{color:#d8e8fb}.primary-btn{min-height:46px;padding:0 18px;display:inline-flex;align-items:center;border-radius:13px;color:#fff;background:linear-gradient(135deg,#3A96FF,#1478F2 55%,#0863D3);box-shadow:var(--bshadow);font-weight:700}.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:20px}.secondary-link{min-height:44px;display:inline-flex;align-items:center;color:var(--brand);font-weight:700}.topic-feature{display:grid;grid-template-columns:1.3fr .7fr;gap:20px;padding:28px;border-radius:24px;background:linear-gradient(145deg,#eaf4ff,#fff);border:1px solid var(--border)}.topic-feature h2{font-size:34px;margin:0 0 10px}.topic-feature p{margin:0;color:#53657b}.topic-side{display:grid;gap:9px}.topic-side a{padding:13px;background:#fff;border:1px solid var(--gb);border-radius:13px;font-weight:700}.channel-strip{max-width:var(--max);margin:auto;padding:0 20px;overflow:hidden}.channel-scroll{display:flex;gap:18px;overflow-x:auto;padding:14px 0}.channel-scroll a{white-space:nowrap;font-size:14px;color:#556477}.channel-scroll a:before{content:"•";color:var(--brand);margin-right:8px}.editor-hero{padding:34px 0 30px;background:var(--sub)}.editor-grid{display:grid;grid-template-columns:.8fr 1.4fr .8fr;gap:18px}.editor-panel,.banner-panel{border:1px solid var(--gb);border-radius:22px;background:#fff;padding:24px}.editor-panel h1{font-size:30px}.editor-panel p{color:var(--muted)}.banner-panel{background:linear-gradient(140deg,#0f72dd,#2f8cff);color:#fff}.banner-panel h2{color:#fff;font-size:36px}.banner-panel p{color:#eaf3ff}.banner-panel img{max-height:360px;width:100%;object-fit:contain;border-radius:16px}.hero-mini{display:grid;gap:10px}.hero-mini a{padding:13px;border-radius:13px;background:var(--sub);border:1px solid var(--gb)}.hero-mini b{display:block;color:var(--title)}.hero-mini span{display:block;font-size:12px;color:var(--muted)}.overview-grid{display:grid;grid-template-columns:1.25fr .95fr 1.1fr .8fr;gap:14px}.overview-item{padding:20px;border:1px solid var(--gb);border-radius:18px}.overview-item:nth-child(2n){background:var(--sub)}.overview-item h3{margin:0 0 8px}.overview-item p{margin:0;color:var(--muted)}.masonry-ish{columns:3;column-gap:16px}.masonry-ish .content-card{break-inside:avoid;margin-bottom:16px}.interest-wall{display:flex;flex-wrap:wrap;gap:12px}.interest-pill{flex:1 1 220px;padding:18px;border:1px solid var(--gb);border-radius:18px}.interest-pill:nth-child(3n+1){flex-basis:290px}.interest-pill h3,.interest-pill p{margin:0}.interest-pill p{color:var(--muted)}.faq-list details{border-bottom:1px solid var(--gb);padding:16px 0}.faq-list summary{font-weight:750;color:var(--title);cursor:pointer}.faq-list p{color:var(--muted)}.app-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:center}.app-visual{min-height:360px;border-radius:28px;background:linear-gradient(150deg,#dfeeff,#f8fbff);display:grid;place-items:center;padding:24px}.app-visual img{max-height:440px;object-fit:contain}.app-placeholder{width:min(250px,80%);aspect-ratio:9/16;border-radius:30px;background:#fff;border:9px solid #17304c;display:grid;place-items:center;color:var(--brand);font-size:24px;font-weight:800}.brand-declare{padding:40px;border-radius:28px;background:var(--navy);color:#eaf3ff}.brand-declare h2{color:#fff;font-size:38px}.brand-declare p{color:#d8e8fb}.site-footer{margin-top:30px;padding:48px 0 calc(36px + env(safe-area-inset-bottom));background:var(--navy);color:#eaf3ff}.footer-inner{max-width:var(--max);margin:auto;padding:0 20px}.footer-brand{display:grid;grid-template-columns:auto 1fr 2fr;gap:16px;align-items:center;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.1)}.footer-logo{max-width:110px;max-height:46px}.footer-brand strong{font-size:22px}.footer-brand span{display:block;font-size:12px;color:#a8c8ea}.footer-brand p,.footer-note{color:#c6daef;font-size:13px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:26px 0}.footer-links h2{font-size:14px;color:#fff}.footer-links a{display:block;color:#c6daef;font-size:13px;padding:4px 0}.footer-note{padding:16px 0;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08)}.copyright{font-size:12px;color:#8fabca}.mobile-bottom{display:none}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(20,120,242,.3);outline-offset:3px}@media(max-width:1120px){.brand{min-width:180px}.brand-tag{display:none}.editor-grid{grid-template-columns:1fr 1.3fr}.editor-grid>.editor-panel:last-child{grid-column:1/-1}.hero-mini{grid-template-columns:repeat(4,1fr)}}@media(max-width:860px){.desktop-nav{display:none}.mobile-nav{display:flex}.site-header{height:64px}.site-overlay{inset:64px 0 0}.mega-menu,.search-panel{top:64px}.mega-menu{left:auto;right:0;width:min(88vw,420px);bottom:0;transform:translateX(102%);opacity:1}.search-panel{bottom:0;transform:none}.mega-menu-inner,.search-inner{max-height:100%;padding:20px 15px}.menu-grid,.search-links{grid-template-columns:1fr}.editor-grid{grid-template-columns:1fr}.editor-grid>.editor-panel:last-child{grid-column:auto}.hero-mini{grid-template-columns:1fr 1fr}.overview-grid{grid-template-columns:1fr 1fr}.grid-4,.grid-3{grid-template-columns:1fr 1fr}.topic-feature,.app-layout{grid-template-columns:1fr}.footer-brand{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:900;display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--gb);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:58px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#68778b}.mobile-bottom a.active{color:var(--brand);font-weight:800}.site-footer{padding-bottom:calc(86px + env(safe-area-inset-bottom))}}@media(max-width:620px){.container,.channel-strip{padding-left:15px;padding-right:15px}.page-hero{padding:40px 0 28px}.page-hero h1{font-size:36px}.section{padding:42px 0}.grid-2,.grid-3,.grid-4,.overview-grid{grid-template-columns:1fr}.hero-mini{grid-template-columns:1fr}.masonry-ish{columns:1}.list-line{grid-template-columns:1fr;gap:6px}.topic-feature{padding:22px}.brand-declare{padding:26px 22px}.footer-links{grid-template-columns:1fr 1fr}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.app-showcase{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}.app-visual{min-height:430px;border-radius:28px;background:linear-gradient(155deg,#edf5ff,#d9eafe);display:flex;align-items:center;justify-content:center;padding:30px;box-shadow:var(--shadow-blue);overflow:hidden}.app-visual img{max-width:100%;max-height:520px;object-fit:contain}.app-visual .app-icon{width:132px;height:132px;border-radius:28px;box-shadow:var(--shadow)}.visual-fallback{min-height:300px;width:100%;border-radius:22px;border:1px dashed rgba(20,120,242,.3);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;color:var(--blue)}.visual-fallback strong{font-size:34px}.visual-fallback span{color:var(--muted)}
@media(max-width:760px){.app-showcase{grid-template-columns:1fr}.app-visual{min-height:300px}.visual-fallback{min-height:220px}.visual-fallback strong{font-size:28px}}