*{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}
img{max-width:100%;height:auto}
a{color:#137CD8}
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}
.drawer-logo img,.footer-logo img{display:block;height:36px;width:auto;max-width:150px;object-fit:contain}
.logo-fallback{font-weight:800;font-size:21px;color:#137CD8;white-space:nowrap}
.logo-fallback.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}
.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}
.menu-toggle{display:none;border:0;background:transparent;color:#137CD8;font-weight:800;min-height:40px;padding:0 8px}
.channel-bar{background:#F4F8FF;border-bottom:1px solid rgba(47,168,247,.14);position:relative;z-index:8}
.channel-inner{max-width:1140px;margin:0 auto;padding:0 16px;display:flex;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}
.channel-inner a{padding:11px 10px;color:#5D718A;text-decoration:none;font-size:14px}
.channel-inner a:hover,.channel-inner a.is-current{color:#137CD8;font-weight:700}
.site-main{min-height:60vh;padding-bottom:48px}
.page-shell{max-width:1140px;margin:0 auto;padding:34px 16px}
.reading{max-width:800px;margin:0 auto}
.breadcrumb{font-size:14px;color:#5D718A;margin:0 0 16px}
.breadcrumb a{color:#5D718A;text-decoration:none}
.hero-copy,.content-panel,.notice-strip,.index-card,.link-panel,.faq-item,.step,.service-cluster{background:#FFFFFF;border:1px solid rgba(47,168,247,.14);border-radius:16px;box-shadow:0 12px 26px rgba(19,124,216,.12)}
.hero-copy{padding:30px}
.hero-copy h1,.reading h1,.content-panel h1{font-size:clamp(28px,4vw,40px);line-height:1.2;margin:0 0 16px;color:#137CD8}
.hero-copy p,.content-panel p,.reading p{font-size:17px;line-height:1.82;margin:0 0 16px}
.section-title{font-size:26px;line-height:1.3;color:#137CD8;margin:0 0 16px}
.sub-title{font-size:21px;color:#24364F;margin:0 0 10px}
.muted{color:#5D718A}
.content-panel{padding:26px;margin:22px 0}
.notice-strip{padding:20px 24px;margin:24px 0;background:#F4F8FF}
.notice-strip p{margin:0;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;background:#EDF5FF;color:#137CD8;font-weight:800;letter-spacing:.06em}
.content-media{margin:18px 0}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px;align-items:center}
.split .media{min-height:210px}
.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.text-link{display:inline-flex;align-items:center;min-height:40px;padding:8px 12px;border-radius:999px;background:#F4F8FF;text-decoration:none;font-weight:700}
.text-link:hover{background:#EDF5FF}
.bullet-list{margin:12px 0 0;padding-left:1.2em}
.bullet-list li{margin:9px 0;line-height:1.7}
.index-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}
.index-card{padding:20px;text-decoration:none;color:#24364F;min-height:112px}
.index-card strong{display:block;color:#137CD8;font-size:19px;margin-bottom:8px}
.index-card span{color:#5D718A;line-height:1.55}
.app-strip{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center;background:#FFFFFF;border:1px solid rgba(47,168,247,.14);border-radius:16px;box-shadow:0 12px 26px rgba(19,124,216,.12);padding:20px;margin-top:26px}
.app-strip .media{height:126px;aspect-ratio:auto}
.hero-slider{max-width:1140px;margin:28px auto 0;padding:0 16px;position:relative;z-index:1}
.slider-stage{height:280px;position:relative;border-radius:16px;background:#FFFFFF;overflow:hidden;border:1px solid rgba(47,168,247,.14);box-shadow:0 12px 26px rgba(19,124,216,.12)}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .3s ease;pointer-events:none}
.hero-slide.is-active{opacity:1;pointer-events:auto}
.hero-slide .media{height:100%;aspect-ratio:auto;border-radius:0}
.slider-prev,.slider-next{position:absolute;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;font-weight:800;box-shadow:0 8px 20px rgba(16,43,70,.16);z-index:2}
.slider-prev{left:30px}.slider-next{right:30px}
.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:2}
.slider-dot{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:#9BCDF2;min-height:10px}
.slider-dot.is-active{background:#137CD8}
.steps{display:grid;gap:14px;margin:20px 0}
.step{padding:18px 20px}
.step strong{color:#137CD8}
.two-col-links{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.link-panel{padding:20px}
.link-panel h2{margin:0 0 12px;color:#137CD8;font-size:21px}
.link-panel a{display:block;padding:8px 0;text-decoration:none}
.faq-list{display:grid;gap:16px}
.faq-item{padding:20px}
.faq-item h2,.faq-item h3{font-size:20px;color:#137CD8;margin:0 0 10px}
.faq-item p{margin:0;font-size:16px;line-height:1.8}
.service-cluster{padding:22px}
.service-cluster h2,.service-cluster h3{color:#137CD8;margin:0 0 10px}
.floating-tools{position:fixed;right:10px;top:36%;z-index:8000;width:110px;background:#FFFFFF;border:1px solid rgba(47,168,247,.14);border-radius:14px;box-shadow:0 12px 26px rgba(19,124,216,.12);padding:8px;display:grid;gap:6px}
.floating-tools a,.floating-tools button{min-height:40px;display:flex;align-items:center;justify-content:center;border:0;background:#FFFFFF;color:#137CD8;text-decoration:none;border-radius:10px;font-weight:700;font-size:13px}
.floating-tools .floating-register{background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%);color:#FFFFFF}
.site-footer{background:#102B46;color:#EAF6FF;padding:42px 16px 20px}
.footer-grid{max-width:1140px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.footer-grid h2{font-size:17px;margin:0 0 12px;color:#FFFFFF}
.footer-grid a{display:block;color:#EAF6FF;text-decoration:none;padding:5px 0}
.footer-brand p{line-height:1.7;color:#D6ECFF}
.footer-bottom{max-width:1140px;margin:26px auto 0;padding-top:18px;border-top:1px solid rgba(234,246,255,.18);font-size:13px;line-height:1.7;color:#D6ECFF}
.mobile-bottom{display:none}
.mobile-drawer,.drawer-mask{display:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid rgba(47,168,247,.14)}
.drawer-close{min-height:40px;border:0;background:#F4F8FF;color:#137CD8;border-radius:10px;padding:0 12px;font-weight:800}
.drawer-groups{padding:8px 16px 28px;overflow-y:auto;height:calc(100vh - 70px)}
.drawer-groups section{padding:13px 0;border-bottom:1px solid rgba(47,168,247,.14)}
.drawer-groups h2{font-size:14px;color:#5D718A;margin:0 0 7px}
.drawer-groups a{display:inline-flex;min-height:40px;align-items:center;margin-right:12px;color:#24364F;text-decoration:none;font-weight:700}
body.drawer-open{overflow:hidden}
@media(max-width:1180px){.floating-tools{display:none}}
@media(max-width:980px){
  .header-inner{min-height:62px;display:grid;grid-template-columns:72px 1fr 100px;gap:8px}
  .menu-toggle{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}
  .header-btn{justify-self:end;min-width:88px;padding:0 14px}
  .nav-core,.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}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:8500;display:grid;grid-template-columns:repeat(4,1fr);background:#FFFFFF;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;text-decoration:none;color:#137CD8;font-weight:700}
  .site-main{padding-bottom:86px}
  .split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  .page-shell{padding:26px 14px}
  .hero-copy{padding:22px}
  .hero-copy p,.content-panel p,.reading p{font-size:16px;line-height:1.78}
  .section-title{font-size:23px}
  .slider-stage{height:166px}
  .slider-prev,.slider-next{width:38px;height:38px;top:50%}
  .slider-prev{left:22px}.slider-next{right:22px}
  .index-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .index-card{padding:16px;min-height:108px}
  .app-strip{grid-template-columns:1fr;padding:16px}
  .app-strip .media{height:auto;aspect-ratio:16/9}
  .two-col-links{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:390px){
  .header-inner{grid-template-columns:60px 1fr 88px;padding:0 10px}
  .menu-toggle{padding:0 4px}
  .header-btn{min-width:82px;padding:0 10px;font-size:14px}
  .site-logo img{max-width:122px;height:32px}
  .logo-fallback{font-size:18px}
}