*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#EAF2FB;color:#24364F;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}a{color:#137CD8}img{max-width:100%}button,a{touch-action:manipulation}.site-header{position:sticky;top:0;z-index:9000;width:100%;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:0 6px 18px rgba(19,124,216,.08)}.header-inner{max-width:1140px;min-height:66px;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}.site-logo,.drawer-logo,.footer-logo{display:flex;align-items:center;text-decoration:none}.site-logo img{display:block;height:38px;width:auto;max-width:156px;object-fit:contain}.logo-text{font-size:22px;font-weight:800;color:#137CD8;white-space:nowrap}.logo-text.light{color:#EAF6FF}.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0}.nav-core a{color:#24364F;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#137CD8;box-shadow:inset 0 -2px 0 #2FA8F7}.menu-btn{display:none;border:0;background:transparent;color:#137CD8;font-weight:800;min-height:40px;padding:0 6px}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;min-width:92px;padding:0 18px;background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%);color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 22px rgba(19,124,216,.18);touch-action:manipulation;white-space:nowrap}.channel-bar{background:#F4F8FF;border-top:1px solid rgba(47,168,247,.08);border-bottom:1px solid rgba(47,168,247,.14)}.channel-inner{max-width:1140px;margin:0 auto;padding:0 16px;display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:thin}.channel-inner a{display:inline-flex;align-items:center;min-height:44px;padding:0 10px;color:#5D718A;text-decoration:none;font-size:14px;white-space:nowrap}.channel-inner a:hover,.channel-inner a.is-current{color:#137CD8}.mobile-drawer,.drawer-mask{display:none}.site-main{max-width:1140px;margin:0 auto;padding:28px 16px 58px}.breadcrumb{font-size:14px;color:#5D718A;margin:0 0 14px}.breadcrumb a{text-decoration:none}.page-hero,.content-panel,.note-strip,.index-grid,.article-card,.step-list,.link-panel,.faq-list,.service-grid{background:#fff;border:1px solid rgba(47,168,247,.14);box-shadow:0 12px 26px rgba(19,124,216,.12);border-radius:16px}.page-hero{padding:28px 30px;margin-bottom:24px}.page-hero h1{margin:0 0 10px;color:#137CD8;font-size:clamp(28px,4vw,40px);line-height:1.25}.page-hero p{margin:0;max-width:820px;font-size:17px}.content-panel{padding:28px 30px;margin:24px 0}.content-panel h2,.article-card h2,.service-grid h2,.faq-list h2{color:#137CD8;line-height:1.35;margin:0 0 12px}.content-panel p,.article-card p{margin:0 0 14px}.content-panel p:last-child,.article-card p:last-child{margin-bottom:0}.article-width{max-width:820px;margin-left:auto;margin-right:auto}.split{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:center}.split.reverse{grid-template-columns:1fr 1.05fr}.split .copy h2{color:#137CD8;margin-top:0}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#EDF5FF;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(145deg,#EDF5FF,#E3F1FF)}.media.compact{max-height:230px}.media.card-media{height:160px;aspect-ratio:auto}.text-links{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:18px}.text-links a{text-decoration:none;font-weight:700}.text-links a:hover{text-decoration:underline}.note-strip{padding:22px 26px;background:#F4F8FF;color:#5D718A;margin:24px 0}.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:18px;margin:24px 0}.index-item{background:#F4F8FF;border:1px solid rgba(47,168,247,.14);border-radius:14px;padding:18px;text-decoration:none;color:#24364F}.index-item strong{display:block;color:#137CD8;font-size:18px;margin-bottom:5px}.app-strip{display:grid;grid-template-columns:180px 1fr auto;gap:22px;align-items:center;padding:20px 24px;background:#fff;border:1px solid rgba(47,168,247,.14);box-shadow:0 12px 26px rgba(19,124,216,.12);border-radius:16px;margin-top:24px}.app-strip .media{height:100px;aspect-ratio:16/9}.app-strip h2{margin:0 0 5px;color:#137CD8}.app-strip p{margin:0;color:#5D718A}.carousel{position:relative;z-index:1;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 12px 26px rgba(19,124,216,.12);height:280px;margin-bottom:24px}.carousel-track{height:100%}.carousel-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease;background:#EDF5FF}.carousel-slide.is-active{opacity:1;pointer-events:auto}.carousel-slide img{width:100%;height:100%;object-fit:contain;display:block}.carousel-placeholder{width:100%;height:100%;background:linear-gradient(145deg,#EDF5FF,#E3F1FF)}.carousel-prev,.carousel-next{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.9);color:#137CD8;font-size:24px;font-weight:800;box-shadow:0 6px 18px rgba(19,124,216,.15)}.carousel-prev{left:14px}.carousel-next{right:14px}.carousel-dots{position:absolute;z-index:2;left:0;right:0;bottom:12px;display:flex;justify-content:center;gap:8px}.carousel-dot{width:10px;height:10px;border-radius:50%;border:1px solid #137CD8;background:#fff;padding:0}.carousel-dot.is-active{background:#137CD8}.cards-2,.cards-3,.service-grid{display:grid;gap:18px}.cards-2{grid-template-columns:repeat(2,1fr)}.cards-3{grid-template-columns:repeat(3,1fr)}.article-card{padding:22px}.step-list{padding:26px 30px;counter-reset:step}.step-list .step{position:relative;padding:0 0 22px 48px}.step-list .step:last-child{padding-bottom:0}.step-list .step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#137CD8;color:#fff;font-weight:800}.link-panel{padding:20px 24px}.link-panel h2{margin:0 0 12px;color:#137CD8}.compact-list{margin:0;padding-left:20px}.compact-list li{margin:7px 0}.service-grid{grid-template-columns:repeat(4,1fr);padding:18px}.service-grid a{display:block;padding:18px;background:#F4F8FF;border-radius:14px;text-decoration:none;color:#24364F}.service-grid strong{display:block;color:#137CD8;margin-bottom:6px}.faq-list{padding:26px 30px}.faq-item{padding:18px 0;border-bottom:1px solid rgba(47,168,247,.14)}.faq-item:last-child{border-bottom:0}.faq-item h2{font-size:20px}.side-float{position:fixed;right:10px;top:44%;transform:translateY(-50%);z-index:8000;width:102px;display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid rgba(47,168,247,.14);box-shadow:0 12px 26px rgba(19,124,216,.12);border-radius:14px;padding:10px}.side-float>a,.side-float button{min-height:40px;display:flex;align-items:center;justify-content:center;text-align:center;border:0;border-radius:10px;background:#F4F8FF;color:#137CD8;text-decoration:none;font:inherit;font-size:13px;font-weight:700}.side-float .main-btn{color:#fff;background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%);padding:0 8px;min-width:0}.mobile-bottom{display:none}.site-footer{background:#102B46;color:#EAF6FF}.footer-grid{max-width:1140px;margin:0 auto;padding:44px 16px 32px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}.site-footer h2{font-size:17px;margin:0 0 12px;color:#fff}.site-footer a{display:block;color:#EAF6FF;text-decoration:none;margin:7px 0}.site-footer p{color:#cfe7fb;margin:12px 0 0}.footer-logo img{height:40px;width:auto;max-width:160px;object-fit:contain}.footer-bottom{border-top:1px solid rgba(234,246,255,.15);max-width:1140px;margin:0 auto;padding:18px 16px 26px;font-size:14px;color:#cfe7fb}.footer-bottom span{margin-left:14px;color:#fff}.drawer-open{overflow:hidden}@media(max-width:1220px){.side-float{display:none}}@media(max-width:980px){.site-main{padding-top:20px;padding-bottom:86px}.nav-core,.channel-bar{display:none}.menu-btn{display:inline-flex;align-items:center}.header-inner{display:grid;grid-template-columns:72px minmax(0,1fr) 104px;gap:8px;min-height:62px}.site-logo{justify-content:center;min-width:0}.site-logo img{height:34px;max-width:142px}.header-action{justify-self:end;min-width:96px;padding:0 13px}.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{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid rgba(47,168,247,.14);z-index:2}.drawer-logo img{height:34px;width:auto;max-width:150px;object-fit:contain}.drawer-close{border:0;background:#F4F8FF;color:#137CD8;border-radius:10px;min-height:40px;padding:0 12px;font-weight:800}.drawer-groups{padding:8px 14px 24px}.drawer-groups section{padding:12px 0;border-bottom:1px solid rgba(47,168,247,.12)}.drawer-groups h2{font-size:14px;color:#5D718A;margin:0 0 8px}.drawer-groups a{display:block;min-height:42px;padding:8px 6px;text-decoration:none;color:#24364F;font-weight:700}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;z-index:8500;background:#fff;border-top:1px solid rgba(47,168,247,.2);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;min-height:54px;align-items:center;justify-content:center;text-decoration:none;color:#137CD8;font-weight:800}.split,.split.reverse{grid-template-columns:1fr}.app-strip{grid-template-columns:140px 1fr}.app-strip .main-btn{grid-column:1/-1;justify-self:start}.service-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.carousel{height:220px}.page-hero,.content-panel{padding:24px}.index-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.site-main{padding-left:12px;padding-right:12px}.header-inner{padding:0 10px;grid-template-columns:64px minmax(0,1fr) 96px}.menu-btn{padding:0;font-size:14px}.header-action{min-width:92px;height:40px;padding:0 12px;font-size:14px}.site-logo img{height:30px;max-width:128px}.page-hero{padding:22px 20px}.page-hero h1{font-size:28px}.page-hero p{font-size:16px}.content-panel,.step-list,.faq-list{padding:22px 20px}.carousel{height:168px;border-radius:14px}.carousel-prev,.carousel-next{width:38px;height:38px}.index-grid{padding:12px;gap:10px}.index-item{padding:14px}.app-strip{grid-template-columns:1fr;padding:18px}.app-strip .media{height:150px}.cards-2,.cards-3{grid-template-columns:1fr}.service-grid{grid-template-columns:1fr 1fr;padding:12px}.footer-grid{grid-template-columns:1fr;padding-top:34px}.footer-bottom span{display:block;margin:8px 0 0}.text-links{gap:8px 12px}}