*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#EAF2FB;color:#24364F;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:#137CD8;text-decoration:none}a:hover{text-decoration:underline}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{display:inline-flex;align-items:center;min-width:150px}.site-logo img,.drawer-logo img{display:block;height:38px;width:auto;max-width:156px;object-fit:contain}.logo-placeholder{display:inline-flex;align-items:center;height:38px;font-weight:800;font-size:20px;color:#137CD8}.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;white-space:nowrap}.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}.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:#fff;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 22px rgba(19,124,216,.18);touch-action:manipulation}.main-btn:hover{text-decoration:none;filter:brightness(.98)}.header-btn{flex:0 0 auto}.menu-btn{display:none;border:0;background:transparent;color:#137CD8;font-weight:800;min-height:40px;padding:0 8px}.channel-bar{background:#F4F8FF;border-top:1px solid rgba(47,168,247,.14);border-bottom:1px solid rgba(47,168,247,.14)}.channel-inner{max-width:1140px;margin:0 auto;padding:0 16px;display:flex;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;color:#5D718A;padding:12px 10px;font-size:14px;font-weight:700;white-space:nowrap}.channel-inner a.is-current,.channel-inner a:hover{color:#137CD8}.mobile-drawer,.drawer-mask{display:none}.site-main{min-height:60vh}.container{max-width:1140px;margin:0 auto;padding:0 16px}.section{padding:44px 0}.section-tight{padding:26px 0}.hero-copy{max-width:820px}.breadcrumb{font-size:14px;color:#5D718A;margin:0 0 18px}.breadcrumb a{color:#5D718A}.eyebrow{display:inline-block;margin-bottom:10px;color:#137CD8;font-weight:800;font-size:14px;letter-spacing:.04em}.page-title{font-size:clamp(28px,4vw,40px);line-height:1.2;margin:0 0 16px;color:#137CD8}.lead{font-size:18px;line-height:1.85;margin:0;color:#314b66}.article{max-width:800px;margin:0 auto}.article h2{font-size:24px;color:#137CD8;margin:34px 0 12px}.article p,.article li{font-size:17px;line-height:1.85}.article ul,.article ol{padding-left:1.4em}.panel{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:16px;box-shadow:0 12px 26px rgba(19,124,216,.12);padding:24px}.soft-panel{background:#F4F8FF;border:1px solid rgba(47,168,247,.14);border-radius:16px;padding:24px}.notice-band{background:#F4F8FF;border:1px solid rgba(47,168,247,.14);padding:20px 24px;border-radius:16px;font-size:16px;line-height:1.8}.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;display:flex;align-items:center;justify-content:center;color:#5D718A;font-size:14px}.content-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.topic-card{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:16px;padding:20px;box-shadow:0 12px 26px rgba(19,124,216,.08)}.topic-card h2,.topic-card h3{margin:0 0 8px;color:#137CD8;font-size:20px}.topic-card p{margin:0;color:#5D718A;line-height:1.7}.link-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}.link-list a{display:block;background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:14px;padding:14px;font-weight:700}.steps{display:grid;gap:12px;counter-reset:step}.step{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:14px;padding:18px 18px 18px 58px;position:relative}.step:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:16px;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#EAF2FB;color:#137CD8;font-weight:800}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.mini-index{display:flex;flex-wrap:wrap;gap:10px}.mini-index a{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:999px;padding:10px 14px;font-weight:700}.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}.slide{position:absolute;inset:0;display:none;align-items:center;justify-content:center}.slide.is-active{display:flex}.slide img{width:100%;height:100%;object-fit:contain}.slide .media-placeholder{position:static;width:100%;height:100%}.carousel-arrow{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.94);color:#137CD8;font-size:24px;box-shadow:0 8px 18px rgba(16,43,70,.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:0;border-radius:50%;padding:0;background:rgba(19,124,216,.28)}.carousel-dot.is-active{background:#137CD8}.app-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:16px;padding:20px 24px;box-shadow:0 12px 26px rgba(19,124,216,.08)}.app-strip h2{margin:0 0 6px;color:#137CD8}.app-strip p{margin:0;color:#5D718A}.float-tools{position:fixed;z-index:8000;right:10px;top:32%;width:52px;display:flex;flex-direction:column;gap:8px}.float-tools a,.float-tools button{display:flex;align-items:center;justify-content:center;min-height:44px;border-radius:12px;background:#fff;color:#137CD8;border:1px solid rgba(47,168,247,.2);font-size:12px;font-weight:800;text-align:center;padding:6px}.float-tools .main-btn{min-width:0;height:auto;color:#fff;background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%)}.float-tools button{cursor:pointer}.site-footer{background:#102B46;color:#EAF6FF;margin-top:42px}.footer-grid{max-width:1140px;margin:0 auto;padding:42px 16px 28px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}.footer-grid h2{font-size:16px;margin:0 0 12px;color:#fff}.footer-grid a{display:block;color:#EAF6FF;padding:5px 0}.footer-brand img{height:40px;width:auto;max-width:160px;object-fit:contain;background:#fff;border-radius:8px;padding:4px}.footer-brand p{line-height:1.8;color:#cfe7f7}.footer-bottom{max-width:1140px;margin:0 auto;padding:18px 16px 24px;border-top:1px solid rgba(234,246,255,.14);color:#cfe7f7;line-height:1.7}.mobile-bottom{display:none}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:16px;padding:20px}.faq-item h2{font-size:19px;margin:0 0 10px;color:#137CD8}.faq-item p{margin:0;line-height:1.8}.drawer-open{overflow:hidden}@media(max-width:1080px){.nav-core a{padding:8px 7px;font-size:14px}.float-tools{display:none}.site-main{padding-right:0}}@media(max-width:980px){.header-inner{min-height:60px;display:grid;grid-template-columns:72px 1fr 96px;padding:0 12px}.menu-btn{display:inline-flex;align-items:center;justify-content:flex-start}.site-logo{justify-content:center;min-width:0}.site-logo img{height:34px;max-width:138px}.nav-core{display:none}.header-btn{height:40px;min-width:88px;padding:0 12px;font-size:14px}.channel-bar{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(16,43,70,.16)}.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{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid rgba(47,168,247,.14)}.drawer-logo img{height:34px}.drawer-close{min-height:40px;border:0;background:#F4F8FF;color:#137CD8;border-radius:10px;padding:0 12px;font-weight:800}.drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:14px 16px 96px}.drawer-scroll section{margin-bottom:18px}.drawer-scroll h2{font-size:13px;color:#5D718A;margin:0 0 6px}.drawer-scroll a{display:block;padding:9px 0;color:#24364F;font-weight:700}.mobile-bottom{position:fixed;z-index:8500;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(47,168,247,.2);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:52px;display:flex;align-items:center;justify-content:center;font-weight:800}.site-main{padding-bottom:60px}.footer-bottom{padding-bottom:78px}.carousel{height:220px}.topic-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:1fr}.link-list{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.carousel{z-index:1}}@media(max-width:620px){.section{padding:30px 0}.section-tight{padding:20px 0}.page-title{font-size:28px}.lead{font-size:16px}.article p,.article li{font-size:16px;line-height:1.8}.article h2{font-size:21px}.panel,.soft-panel{padding:18px}.topic-grid{grid-template-columns:repeat(2,1fr);gap:12px}.topic-card{padding:16px}.topic-card h2,.topic-card h3{font-size:17px}.two-col,.link-list{grid-template-columns:1fr}.carousel{height:165px}.carousel-arrow{width:38px;height:38px}.app-strip{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.header-inner{grid-template-columns:66px 1fr 88px}.header-btn{min-width:82px;padding:0 9px}.site-logo img{max-width:126px}.breadcrumb{margin-top:2px}}
