*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#eef5fb;color:#24364f;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}a{color:#176fbb;text-decoration:none}a:hover{color:#0f5d9f}.site-header{position:sticky;top:0;z-index:9000;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(22,111,187,.1)}.header-inner{max-width:1180px;min-height:68px;margin:auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}.site-logo img,.drawer-logo img,.footer-brand img{display:block;height:38px;width:auto;max-width:160px;object-fit:contain}.nav-core{display:flex;align-items:center;gap:2px}.nav-core a{padding:9px 10px;color:#29425f;font-weight:700;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#176fbb;background:#eef7ff;border-radius:10px}.auth-actions,.drawer-auth{display:flex;gap:8px}.auth-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;min-width:76px;padding:0 16px;border-radius:999px;font-weight:800;touch-action:manipulation}.auth-register{background:linear-gradient(135deg,#55c7ff,#1680d1);color:#fff!important}.auth-login{background:#fff;color:#176fbb!important;border:1px solid rgba(22,111,187,.25)}.menu-toggle{display:none;border:0;background:transparent;color:#176fbb;font-weight:800;min-height:40px;touch-action:manipulation}.channel-bar{background:#f7fbff;border-bottom:1px solid rgba(22,111,187,.08)}.channel-inner{max-width:1180px;margin:auto;padding:8px 18px;display:flex;gap:18px;overflow-x:auto;white-space:nowrap}.channel-inner a{font-size:14px;color:#61758d}.channel-inner a:hover{color:#176fbb}.mobile-drawer,.drawer-mask{display:none}main{min-height:60vh}.carousel-wrap,.hero-shell,.section-shell,.page-shell,.read-note{max-width:1140px;margin-left:auto;margin-right:auto}.carousel-wrap{padding:26px 18px 0}.carousel{position:relative;aspect-ratio:16/4.25;background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 16px 36px rgba(21,93,153,.1);z-index:1}.carousel-slide{display:none;width:100%;height:100%}.carousel-slide.is-active{display:block}.carousel-slide img{width:100%;height:100%;object-fit:contain}.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(16,43,70,.7);color:#fff;font-size:26px;z-index:2;touch-action:manipulation}.carousel-prev{left:14px}.carousel-next{right:14px}.carousel-dots{position:absolute;left:50%;bottom:9px;transform:translateX(-50%);display:flex;gap:4px;z-index:2}.carousel-dot{width:40px;height:40px;border:0;background:transparent;position:relative;touch-action:manipulation}.carousel-dot:after{content:"";position:absolute;inset:15px;border-radius:50%;background:#b8cadb}.carousel-dot.is-active:after{background:#176fbb}.hero-shell{padding:50px 18px 20px}.hero-kicker{display:inline-flex;padding:5px 10px;border-radius:999px;background:#e1f2ff;color:#176fbb;font-weight:800;font-size:13px;letter-spacing:.04em}.hero-shell h1,.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:12px 0 14px;color:#123653}.hero-shell p{max-width:820px;font-size:18px;color:#526a82}.route-grid{max-width:1140px;margin:16px auto 0;padding:0 18px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.route-card{background:#fff;border:1px solid rgba(22,111,187,.1);border-radius:16px;padding:22px;box-shadow:0 10px 24px rgba(21,93,153,.06)}.route-card small{display:block;color:#6f8499;font-weight:800}.route-card strong{display:block;color:#153f62;font-size:21px;margin:4px 0}.route-card span{color:#63798f}.section-shell{padding:34px 18px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head h2{margin:0;color:#153f62;font-size:28px}.section-head p{margin:0;color:#6a8095;max-width:620px}.news-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}.feature-box,.stack-box,.link-panel,.app-ribbon,.topic-cloud,.page-article{background:#fff;border-radius:16px;border:1px solid rgba(22,111,187,.1);box-shadow:0 10px 28px rgba(21,93,153,.06)}.feature-box,.stack-box,.link-panel{padding:24px}.stack-box{display:grid;gap:12px}.mini-item{padding:14px;border-radius:12px;background:#f5faff}.mini-item strong{display:block;color:#153f62}.topic-cloud{padding:18px;display:flex;flex-wrap:wrap;gap:10px}.topic-cloud a{padding:9px 13px;border-radius:999px;background:#eef7ff;border:1px solid rgba(22,111,187,.1);font-weight:700}.media{position:relative;width:100%;overflow:hidden;border-radius:14px;background:#e9f3fb;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center}.media-placeholder,.logo-placeholder{display:block;width:100%;height:100%;background:linear-gradient(135deg,#e5f2fb,#f7fbff)}.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}.split-copy h2{color:#153f62;margin-top:0}.app-ribbon{padding:18px;display:grid;grid-template-columns:220px 1fr auto;gap:18px;align-items:center}.app-ribbon .media{height:120px;aspect-ratio:auto}.read-note{margin-top:18px;margin-bottom:38px;padding:18px;background:#e5f3ff;border-left:4px solid #176fbb;border-radius:0 12px 12px 0;color:#526b82}.page-shell{padding:34px 18px 48px}.breadcrumbs{font-size:14px;color:#70859a;margin-bottom:12px}.page-hero{background:linear-gradient(135deg,#f8fcff,#e8f5ff);border:1px solid rgba(22,111,187,.1);border-radius:18px;padding:32px;margin-bottom:18px}.page-hero p{max-width:820px;margin-bottom:0;color:#567086}.page-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px}.page-article{padding:28px}.page-article h2{color:#153f62;margin-top:30px}.page-article h2:first-child{margin-top:0}.page-article ul{padding-left:22px}.side-index{background:#fff;border:1px solid rgba(22,111,187,.1);border-radius:16px;padding:18px;height:max-content;position:sticky;top:112px}.side-index strong{display:block;color:#153f62;margin-bottom:8px}.side-index a{display:block;padding:7px 0;border-bottom:1px dashed rgba(22,111,187,.12)}.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.service-card{background:#f5faff;border-radius:12px;padding:16px}.service-card strong{display:block;color:#153f62}.site-footer{background:#102d47;color:#dceeff;padding:42px 18px 90px}.footer-grid{max-width:1140px;margin:auto;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:26px}.site-footer h2{font-size:16px;color:#fff}.site-footer a{display:block;color:#dceeff;padding:3px 0}.footer-brand p{max-width:300px;color:#bcd2e5}.footer-bottom{max-width:1140px;margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);color:#a9c4da;font-size:14px}.side-actions{position:fixed;right:16px;bottom:90px;z-index:8000;display:grid;gap:8px;background:#fff;padding:10px;border-radius:14px;box-shadow:0 12px 30px rgba(16,43,70,.12)}.side-actions>a,.side-actions button{min-height:40px;padding:0 12px;border:0;background:#f1f8ff;color:#176fbb;border-radius:9px;display:flex;align-items:center;justify-content:center;font-weight:700;touch-action:manipulation}.mobile-bottom{display:none}
@media(max-width:980px){body{padding-bottom:66px}.header-inner{display:grid;grid-template-columns:88px 1fr 150px;min-height:64px;padding:0 12px}.menu-toggle{display:inline-flex;align-items:center;padding:0;justify-content:flex-start}.site-logo{justify-self:center}.site-logo img{max-width:132px;height:34px}.nav-core,.channel-bar{display:none}.header-inner>.auth-actions{justify-self:end;gap:5px}.header-inner>.auth-actions .auth-btn{min-width:68px;padding:0 10px}.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(16,43,70,.16);overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,43,70,.38);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{padding:14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e8f0f6}.drawer-head img{height:34px}.drawer-close{min-height:40px;border:0;background:#eef7ff;color:#176fbb;border-radius:9px;padding:0 12px;font-weight:800;touch-action:manipulation}.drawer-auth{padding:12px 14px}.drawer-auth a{flex:1}.drawer-group{padding:11px 14px;border-top:1px solid #eef3f7}.drawer-group strong{display:block;color:#153f62;margin-bottom:5px}.drawer-group a{display:block;padding:8px 0;color:#4f687f}.route-grid{grid-template-columns:repeat(2,1fr)}.news-grid,.split-feature,.page-layout{grid-template-columns:1fr}.side-index{position:static}.service-cards{grid-template-columns:repeat(2,1fr)}.app-ribbon{grid-template-columns:140px 1fr}.app-ribbon>.auth-actions{grid-column:1/-1}.footer-grid{grid-template-columns:1fr 1fr}.side-actions{display:none}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:8500;display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid rgba(22,111,187,.16);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:54px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#48657d}.carousel{aspect-ratio:16/6}.page-hero{padding:24px}}
@media(max-width:560px){.header-inner{grid-template-columns:64px 1fr 132px}.header-inner>.auth-actions .auth-btn{min-width:58px;padding:0 8px;font-size:13px}.route-grid{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:6px}.app-ribbon{grid-template-columns:1fr}.app-ribbon .media{height:auto;aspect-ratio:16/9}.service-cards{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.carousel{aspect-ratio:16/7.5}.carousel-wrap{padding-top:14px}.hero-shell{padding-top:34px}.page-article{padding:20px}}