*{box-sizing:border-box}
html{scroll-behavior:smooth}body{margin:0;background:#F4FBFF;color:#223044;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}a{color:inherit}img{max-width:100%}button,input,textarea{font:inherit}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(8,119,201,.08)}.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}.site-logo,.drawer-logo,.footer-logo{display:inline-flex;align-items:center;text-decoration:none;flex:0 0 auto}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-fallback{font-size:22px;font-weight:900;color:#0877C9;letter-spacing:.04em}.nav-core{display:flex;align-items:center;justify-content:center;gap:6px;min-width:0}.nav-core a{color:#1D2A3A;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#0877C9;border-bottom:2px solid #1CA8F6}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 12px 26px rgba(8,119,201,.18);white-space:nowrap}.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;padding:9px;cursor:pointer}.menu-toggle span{display:block;height:2px;background:#0877C9;margin:5px 0;border-radius:2px}.channel-strip{background:#EAF7FF;border-bottom:1px solid rgba(28,168,246,.12)}.channel-inner{max-width:1180px;margin:auto;padding:10px 18px;display:flex;gap:20px;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}.channel-inner a{font-size:14px;text-decoration:none;color:#5F7082;font-weight:700}.channel-inner a:hover{color:#0877C9}.mobile-drawer,.drawer-mask{display:none}
#mainContent{min-height:60vh}.wrap{max-width:1180px;margin:0 auto;padding:0 18px}.section{padding:56px 0}.section.compact{padding:34px 0}.eyebrow{font-size:13px;color:#0877C9;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.page-hero{padding:58px 0 30px}.page-hero-inner{max-width:900px}.page-hero h1,.home-heading{margin:8px 0 16px;color:#0877C9;line-height:1.18;font-size:clamp(30px,4vw,46px)}.page-hero p{max-width:820px;font-size:18px;color:#5F7082;margin:0}.section-title{font-size:28px;color:#0877C9;margin:0 0 12px;line-height:1.3}.section-lead{max-width:820px;color:#5F7082;margin:0 0 24px}.reading-width{max-width:820px}.reading-width p{font-size:17px;margin:0 0 1.1em}.muted{color:#7A8A9A}.text-link{color:#0877C9;font-weight:800;text-decoration:none}.text-link:hover{text-decoration:underline}.soft-panel,.white-panel,.note-panel{border-radius:16px;padding:28px;border:1px solid rgba(28,168,246,.12)}.soft-panel{background:#EAF7FF}.white-panel{background:#fff;box-shadow:0 16px 40px rgba(8,119,201,.08)}.note-panel{background:#f9fdff;border-left:4px solid #1CA8F6}.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.editorial-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.6fr);gap:28px;align-items:start}.stack{display:grid;gap:16px}.mini-card,.index-card,.topic-card{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:15px;padding:22px;text-decoration:none;box-shadow:0 16px 40px rgba(8,119,201,.05)}.mini-card h3,.index-card h3,.topic-card h3{margin:0 0 8px;color:#0877C9;font-size:20px}.mini-card p,.index-card p,.topic-card p{margin:0;color:#5F7082;font-size:15px}.numbered-list{display:grid;gap:14px;counter-reset:item}.numbered-list>div{position:relative;background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:15px;padding:20px 20px 20px 62px}.numbered-list>div:before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#EAF7FF;color:#0877C9;font-weight:900}.numbered-list h3{margin:0 0 5px;color:#0877C9}.numbered-list p{margin:0;color:#5F7082}.tag-row,.topic-strip{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:thin}.tag-row a,.topic-strip a{flex:0 0 auto;text-decoration:none;background:#fff;border:1px solid rgba(28,168,246,.18);color:#0877C9;border-radius:999px;padding:8px 15px;font-weight:800;font-size:14px}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#EAF7FF;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(135deg,#EAF7FF,#F7FCFF);color:#7A8A9A;font-weight:800}.media-card{max-height:240px}.hero-slider{position:relative;border-radius:16px;overflow:hidden;background:#fff;aspect-ratio:1180/330;box-shadow:0 16px 40px rgba(8,119,201,.08)}.hero-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease}.hero-slide.is-active{opacity:1;pointer-events:auto}.hero-slide .media{height:100%;aspect-ratio:auto;border-radius:0}.hero-controls button{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:1px solid rgba(8,119,201,.18);background:rgba(255,255,255,.9);color:#0877C9;font-size:24px;cursor:pointer;z-index:2}.hero-prev{left:14px}.hero-next{right:14px}.hero-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:2}.hero-dot{width:9px;height:9px;padding:0;border-radius:50%;border:0;background:rgba(8,119,201,.28);cursor:pointer}.hero-dot.is-active{background:#0877C9}.home-intro{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}.feature-copy{background:#fff;border-radius:16px;padding:34px;border:1px solid rgba(28,168,246,.12);box-shadow:0 16px 40px rgba(8,119,201,.06)}.feature-copy h1{font-size:clamp(30px,4vw,44px);color:#0877C9;line-height:1.2;margin:8px 0 16px}.feature-copy p{font-size:17px;color:#5F7082;margin:0 0 18px}.quick-list{display:grid;gap:12px}.quick-list a{display:block;text-decoration:none;background:#EAF7FF;border-radius:14px;padding:18px}.quick-list strong{display:block;color:#0877C9}.quick-list span{font-size:14px;color:#5F7082}.service-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.service-band a{background:#fff;border-radius:14px;padding:18px;text-decoration:none;border:1px solid rgba(28,168,246,.12);font-weight:800;color:#0877C9}.split-feature{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center}.split-feature.reverse{grid-template-columns:1.1fr .9fr}.split-feature.reverse .media-wrap{order:2}.split-feature.reverse .copy-wrap{order:1}.copy-wrap h2{color:#0877C9;font-size:28px;margin:0 0 12px}.copy-wrap p{font-size:17px}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare-box{background:#fff;border-radius:15px;padding:24px;border-top:3px solid #1CA8F6;box-shadow:0 16px 40px rgba(8,119,201,.05)}.compare-box h2,.compare-box h3{color:#0877C9;margin-top:0}.anchor-nav{display:flex;gap:10px;flex-wrap:wrap}.anchor-nav a{text-decoration:none;background:#EAF7FF;color:#0877C9;border-radius:999px;padding:7px 13px;font-weight:800}.pull-quote{font-size:22px;line-height:1.55;color:#0877C9;font-weight:800;padding:22px 0;border-top:1px solid rgba(28,168,246,.16);border-bottom:1px solid rgba(28,168,246,.16)}.related-links{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.related-links a{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:18px;text-decoration:none;color:#0877C9;font-weight:800}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border-radius:15px;padding:24px;border:1px solid rgba(28,168,246,.12)}.faq-item h2{font-size:19px;color:#0877C9;margin:0 0 8px}.faq-item p{margin:0;color:#5F7082}.site-footer{background:#082A46;color:#EAF8FF;margin-top:36px}.footer-grid{max-width:1180px;margin:auto;padding:48px 18px 30px;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}.footer-grid h2{font-size:16px;color:#fff;margin:0 0 14px}.footer-grid a{display:block;text-decoration:none;color:#CDEEFF;margin:7px 0}.footer-brand p{color:#BBD7E9;max-width:330px;font-size:14px}.footer-logo img{height:38px;width:auto;object-fit:contain}.footer-fallback{color:#fff}.footer-bottom{max-width:1180px;margin:auto;padding:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:24px;color:#BBD7E9;font-size:13px}.footer-bottom p{margin:0;max-width:760px}.float-tools{position:fixed;right:14px;top:42%;z-index:8000;display:grid;gap:8px;width:92px}.float-tools a,.float-tools button{border:1px solid rgba(8,119,201,.16);background:#fff;color:#0877C9;border-radius:12px;padding:9px 6px;text-align:center;text-decoration:none;font-size:12px;font-weight:800;box-shadow:0 8px 20px rgba(8,119,201,.08);cursor:pointer}.float-tools .float-primary{background:linear-gradient(135deg,#38C7FF,#0877C9);color:#fff}.mobile-bottom{display:none}
@media(max-width:1080px){.nav-core a{padding:8px 7px;font-size:14px}.grid-4{grid-template-columns:repeat(2,1fr)}.service-band{grid-template-columns:repeat(2,1fr)}.related-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){.channel-strip,.nav-core{display:none}.header-inner{min-height:62px}.menu-toggle{display:block;flex:0 0 42px}.site-logo{position:absolute;left:50%;transform:translateX(-50%)}.site-logo img{height:36px;max-width:150px}.header-action{height:40px;min-width:82px;padding:0 14px;font-size:14px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(8,119,201,.16)}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(8,42,70,.42);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-head{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid rgba(28,168,246,.12)}.drawer-logo img{height:34px;width:auto;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;background:#EAF7FF;color:#0877C9;border-radius:50%;font-size:28px;cursor:pointer}.drawer-scroll{height:calc(100vh - 66px);overflow-y:auto;padding:14px 16px 36px}.drawer-scroll section{padding:12px 0;border-bottom:1px solid rgba(28,168,246,.1)}.drawer-scroll h2{font-size:13px;color:#7A8A9A;margin:0 0 6px}.drawer-scroll a{display:block;text-decoration:none;color:#1D2A3A;padding:8px 0;font-weight:700}body.drawer-open{overflow:hidden}.float-tools{display:none}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;height:58px;background:#fff;border-top:1px solid rgba(28,168,246,.14);display:grid;grid-template-columns:repeat(4,1fr);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:grid;place-items:center;text-decoration:none;color:#0877C9;font-size:13px;font-weight:800}body{padding-bottom:58px}.footer-bottom{padding-bottom:24px}.editorial-grid,.home-intro,.grid-2,.split-feature,.split-feature.reverse{grid-template-columns:1fr}.split-feature.reverse .media-wrap,.split-feature.reverse .copy-wrap{order:initial}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.wrap{padding:0 15px}.section{padding:38px 0}.page-hero{padding:36px 0 20px}.page-hero p{font-size:16px}.hero-slider{aspect-ratio:16/8.4}.hero-controls button{width:36px;height:36px}.hero-prev{left:8px}.hero-next{right:8px}.grid-3,.grid-4,.compare-grid,.service-band,.related-links,.footer-grid{grid-template-columns:1fr}.feature-copy{padding:24px}.soft-panel,.white-panel,.note-panel{padding:22px}.section-title{font-size:24px}.copy-wrap h2{font-size:24px}.footer-bottom{display:block}.footer-bottom p+p{margin-top:10px}.header-action{min-width:76px;padding:0 12px}.logo-fallback{font-size:19px}.media-card{max-height:none}}
