*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
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:#0877C9;text-decoration:none}a:hover{text-decoration:none}
img,svg,video{max-width:100%}
button,input,textarea,select{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{display:flex;align-items:center;flex:0 0 auto}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.logo-fallback{display:inline-flex;align-items:center;justify-content:center;min-width:150px;height:40px;padding:0 16px;border-radius:10px;background:#EAF7FF;color:#0877C9;font-weight:800;letter-spacing:.06em}
.nav-core{display:flex;align-items:center;justify-content:center;gap:4px;min-width:0;flex:1}
.nav-core a{color:#1D2A3A;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent}
.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:#FFFFFF;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;width:42px;height:42px;border:0;background:#EAF7FF;border-radius:12px;padding:9px;cursor:pointer}.menu-toggle span{display:block;height:2px;background:#0877C9;margin:5px 0;border-radius:9px}
.channel-bar{background:#EAF7FF;border-top:1px solid rgba(28,168,246,.10)}.channel-track{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;gap:4px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin}.channel-track a{display:block;padding:9px 10px;color:#5F7082;white-space:nowrap;font-size:14px}.channel-track a.is-current,.channel-track a:hover{color:#0877C9}
.site-main{min-height:60vh}.wrap{width:min(1180px,calc(100% - 36px));margin:0 auto}.reading{width:min(820px,calc(100% - 36px));margin:0 auto}.section{padding:54px 0}.section.compact{padding:34px 0}.section-title{margin:0 0 12px;color:#0877C9;font-size:30px;line-height:1.3}.section-kicker{margin:0 0 8px;color:#1CA8F6;font-weight:800;letter-spacing:.08em;font-size:13px}.lead{font-size:18px;color:#405166;max-width:820px}.page-hero{padding:58px 0 34px}.page-hero h1{font-size:clamp(34px,4vw,46px);line-height:1.22;margin:0 0 14px;color:#0877C9}.page-hero p{margin:0;max-width:820px;color:#5F7082;font-size:18px}.crumbs{font-size:14px;color:#7A8A9A;margin-bottom:10px}.crumbs a{color:#5F7082}.soft-card,.text-card,.article-box,.step-item,.link-panel{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;box-shadow:0 16px 40px rgba(8,119,201,.08)}
.article-box{padding:28px}.article-box h2,.text-card h2,.soft-card h2{color:#0877C9;line-height:1.35;margin:0 0 10px}.article-box h3{color:#1D2A3A;margin:24px 0 8px}.article-box p{margin:0 0 14px}.article-box ul,.article-box ol{padding-left:1.25em;margin:10px 0 18px}.article-box li{margin:6px 0}.muted{color:#7A8A9A}.notice-line{padding:14px 16px;border-radius:14px;background:#EAF7FF;color:#466071}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.text-card{padding:24px}.text-card p{margin:0 0 10px}.text-card a.text-link{font-weight:800}.soft-card{padding:22px;background:#fff}.link-list{display:grid;gap:8px}.link-list a{display:block;padding:10px 12px;border-radius:10px;background:#EAF7FF;color:#1D2A3A;font-weight:700}.link-list a:hover{color:#0877C9}.pill-strip{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:thin;max-width:100%}.pill-strip a{flex:0 0 auto;padding:8px 14px;border-radius:999px;background:#fff;border:1px solid rgba(28,168,246,.16);color:#0877C9;font-weight:700}.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;background:linear-gradient(135deg,#EAF7FF,#DDF3FF)}.feature-media{min-height:220px}.card-media{min-height:160px}
.carousel-wrap{padding:28px 0 18px}.carousel{position:relative;width:min(1180px,calc(100% - 36px));height:330px;margin:0 auto;border-radius:16px;background:#fff;overflow:hidden;box-shadow:0 16px 40px rgba(8,119,201,.08)}.carousel-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .45s ease}.carousel-slide.is-active{opacity:1;pointer-events:auto}.carousel-slide .media{height:100%;aspect-ratio:auto;border-radius:0;background:#fff}.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.92);color:#0877C9;font-size:26px;line-height:1;box-shadow:0 6px 20px rgba(8,119,201,.14);cursor:pointer}.carousel-prev{left:14px}.carousel-next{right:14px}.carousel-dots{position:absolute;left:0;right:0;bottom:12px;z-index:4;display:flex;justify-content:center;gap:8px}.carousel-dot{width:9px;height:9px;border-radius:50%;border:0;background:rgba(8,119,201,.28);padding:0;cursor:pointer}.carousel-dot.is-active{background:#0877C9}
.magazine{display:grid;grid-template-columns:58% 42%;gap:22px}.mag-main{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:26px;box-shadow:0 16px 40px rgba(8,119,201,.08)}.mag-main .media{margin-top:18px}.mag-side{display:grid;gap:16px}.mag-side .text-card{min-height:0}
.steps{display:grid;gap:14px}.step-item{padding:20px 22px;display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start}.step-num{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#EAF7FF;color:#0877C9;font-weight:800}.step-item h2{margin:2px 0 6px;color:#0877C9;font-size:20px}.step-item p{margin:0}.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}.compare>div{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:24px}.compare h2{color:#0877C9;margin-top:0}.toc{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 0}.toc a{padding:7px 11px;background:#EAF7FF;border-radius:999px;color:#0877C9;font-weight:700;font-size:14px}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related a{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:16px;font-weight:800;color:#0877C9}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:22px}.faq-item h2{margin:0 0 8px;color:#0877C9;font-size:20px}.faq-item p{margin:0}.service-index{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.service-index a{display:block;background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:22px}.service-index strong{display:block;color:#0877C9;margin-bottom:6px}
.site-footer{background:#082A46;color:#EAF8FF;margin-top:56px}.footer-grid{width:min(1180px,calc(100% - 36px));margin:0 auto;padding:48px 0 34px;display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:26px}.footer-grid h2{font-size:17px;margin:0 0 12px;color:#fff}.footer-grid a{display:block;color:#DFF4FF;margin:6px 0}.footer-brand p{color:#BFD6E4;max-width:300px}.footer-logo img{height:42px;width:auto;object-fit:contain}.footer-logo .logo-fallback{min-width:140px}.footer-bottom{border-top:1px solid rgba(234,248,255,.12);width:min(1180px,calc(100% - 36px));margin:0 auto;padding:18px 0 26px;display:flex;justify-content:space-between;gap:20px;color:#BFD6E4;font-size:14px}.footer-bottom p{margin:0}.float-actions{position:fixed;right:12px;top:50%;transform:translateY(-50%);z-index:9000;width:96px;display:grid;gap:8px}.float-actions a,.float-actions button{border:1px solid rgba(28,168,246,.22);background:#fff;color:#0877C9;padding:9px 7px;border-radius:12px;text-align:center;font-weight:700;box-shadow:0 10px 24px rgba(8,119,201,.08);cursor:pointer}.float-actions .float-primary{background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;border:0}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}.noscript-nav{width:min(1180px,calc(100% - 36px));margin:12px auto;padding:12px;display:flex;gap:8px;flex-wrap:wrap;background:#fff;border-radius:12px;border:1px solid rgba(28,168,246,.12)}.noscript-nav a{padding:6px 10px;background:#EAF7FF;border-radius:999px;font-weight:700}
body.drawer-open{overflow:hidden}
@media(max-width:1100px){.header-inner{padding-right:84px}.float-actions{right:6px}.nav-core a{padding:8px 8px;font-size:14px}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){
  body{padding-bottom:66px}.site-header{position:sticky}.channel-bar,.nav-core{display:none}.header-inner{min-height:64px;padding:0 12px;display:grid;grid-template-columns:42px 1fr auto;gap:10px}.menu-toggle{display:block}.site-logo{justify-self:center;min-width:0}.site-logo img{height:36px;max-width:150px}.site-logo .logo-fallback{min-width:132px;height:36px}.header-action{min-width:88px;height:40px;padding:0 15px}.float-actions{display:none}
  .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:64px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(28,168,246,.12)}.drawer-logo img{height:34px;width:auto;max-width:150px;object-fit:contain}.drawer-logo .logo-fallback{min-width:130px;height:34px}.drawer-close{width:40px;height:40px;border:0;border-radius:10px;background:#EAF7FF;color:#0877C9;font-size:28px;cursor:pointer}.drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:16px 14px 30px}.drawer-group{margin-bottom:18px}.drawer-group h2{font-size:13px;color:#7A8A9A;margin:0 0 8px;letter-spacing:.08em}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}.drawer-links a{padding:9px 10px;border-radius:10px;background:#F4FBFF;color:#1D2A3A;font-weight:700;font-size:14px}.drawer-links a:hover{color:#0877C9;background:#EAF7FF}
  .mobile-bottom{display:grid;position:fixed;left:0;right:0;bottom:0;z-index:10000;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(28,168,246,.12);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{padding:11px 6px;text-align:center;color:#1D2A3A;font-weight:700}.mobile-bottom a:hover{color:#0877C9}
  .magazine{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr}.grid-2,.compare{grid-template-columns:1fr}.service-index{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.carousel{height:250px}.related{grid-template-columns:1fr 1fr}.section{padding:42px 0}
}
@media(max-width:620px){.wrap,.reading,.footer-grid,.footer-bottom,.carousel{width:min(100% - 24px,1180px)}.page-hero{padding:38px 0 22px}.page-hero h1{font-size:30px}.page-hero p,.lead{font-size:16px}.section-title{font-size:26px}.carousel-wrap{padding:18px 0 8px}.carousel{height:178px;border-radius:14px}.carousel-arrow{width:36px;height:36px;font-size:22px}.carousel-prev{left:8px}.carousel-next{right:8px}.mag-main,.article-box,.text-card,.soft-card{padding:20px}.grid-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.related{grid-template-columns:1fr}.step-item{grid-template-columns:36px 1fr}.step-num{width:36px;height:36px}.drawer-links{grid-template-columns:1fr 1fr}.section{padding:32px 0}.feature-media{min-height:200px}.card-media{min-height:150px}}
@media(max-width:390px){.header-inner{grid-template-columns:40px minmax(0,1fr) auto}.menu-toggle{width:40px;height:40px}.site-logo img{max-width:122px;height:32px}.site-logo .logo-fallback{min-width:112px;height:32px;font-size:14px}.header-action{min-width:76px;height:38px;padding:0 12px;font-size:14px}.drawer-links{grid-template-columns:1fr}.carousel{height:162px}}