*{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}
body.drawer-open{overflow:hidden}
a{color:#137CD8;text-decoration:none}
img{max-width:100%}
.site-header{position:sticky;top:0;z-index:9000;width:100%;background:#fff;border-bottom:1px solid rgba(47,168,247,.18)}
.header-inner{max-width:1160px;min-height:68px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-logo{display:flex;align-items:center;min-width:120px}
.site-logo img{display:block;height:36px;width:auto;max-width:150px;object-fit:contain}
.logo-text{font-size:22px;font-weight:800;color:#137CD8;letter-spacing:.08em}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;white-space:nowrap}
.nav-core a{color:#24364F;padding:8px 12px;font-weight:700;white-space:nowrap}
.nav-core a.is-current,.nav-core a:hover{color:#137CD8;background:#F4F8FF;border-radius:999px}
.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;font-weight:700;box-shadow:0 10px 22px rgba(19,124,216,.18);touch-action:manipulation}
.menu-btn{display:none;border:0;background:transparent;color:#137CD8;font-weight:800;min-height:40px;touch-action:manipulation}
.channel-bar{background:#fff;border-bottom:1px solid rgba(47,168,247,.12)}
.channel-inner{max-width:1160px;margin:auto;padding:0 18px;display:flex;gap:20px;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}
.channel-inner a{padding:13px 0;color:#5D718A;font-size:14px;border-bottom:2px solid transparent}
.channel-inner a:hover{color:#137CD8;border-bottom-color:#137CD8}
main{min-height:60vh}
.shell{max-width:1160px;margin:0 auto;padding:34px 18px 60px}
.reading{max-width:820px;margin:0 auto}
.breadcrumb{font-size:14px;color:#5D718A;margin-bottom:18px}
.hero{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr);gap:26px;align-items:center;background:#fff;border:1px solid rgba(47,168,247,.14);box-shadow:0 10px 24px rgba(19,124,216,.10);padding:26px;border-radius:16px}
.hero h1,.article h1{font-size:clamp(30px,4vw,40px);line-height:1.18;margin:0 0 16px;color:#137CD8}
.hero p,.article p,.card p,.note{font-size:16px;line-height:1.82}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.text-link{display:inline-flex;min-height:40px;align-items:center;font-weight:700;touch-action:manipulation}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#EDF5FF;aspect-ratio:16/9;z-index:1}
.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.media-placeholder{display:flex;align-items:center;justify-content:center;color:#7a96b2}
.image-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0 34px}
.image-grid .media{height:140px;aspect-ratio:auto}
.section-title{font-size:24px;color:#137CD8;margin:36px 0 16px}
.list-rows{background:#fff;border-radius:14px;overflow:hidden;border:1px solid rgba(47,168,247,.14)}
.list-row{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:18px 20px;border-bottom:1px solid rgba(47,168,247,.12)}
.list-row:last-child{border-bottom:0}
.list-row strong{color:#137CD8}
.notice-strip{margin:28px 0;padding:18px 20px;border-radius:12px;background:#F4F8FF;border:1px solid rgba(47,168,247,.14);line-height:1.8}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin:34px 0}
.article{background:#fff;border:1px solid rgba(47,168,247,.14);box-shadow:0 10px 24px rgba(19,124,216,.08);border-radius:16px;padding:28px}
.article h2{color:#137CD8;font-size:23px;margin-top:30px}
.article ul{padding-left:20px;line-height:1.9}
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}
.card{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:12px;padding:18px;min-width:0}
.card h2,.card h3{margin-top:0;color:#137CD8}
.card a{font-weight:700}
.faq-item{padding:18px 0;border-bottom:1px solid rgba(47,168,247,.16)}
.faq-item h2{font-size:19px;margin:0 0 8px}
.site-footer{background:#102B46;color:#EAF6FF;padding:38px 18px 24px}
.footer-grid{max-width:1160px;margin:auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.footer-grid section{display:flex;flex-direction:column;gap:8px}
.footer-grid h2{font-size:16px;margin:0 0 6px;color:#fff}
.footer-grid a{color:#EAF6FF}
.footer-logo img{height:36px;width:auto;object-fit:contain}
.footer-bottom{max-width:1160px;margin:26px auto 0;padding-top:18px;border-top:1px solid rgba(234,246,255,.18);font-size:13px;line-height:1.7;color:#bcd6ea}
.side-float{position:fixed;right:14px;top:38%;z-index:8000;display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid rgba(47,168,247,.16);padding:10px;border-radius:14px;box-shadow:0 10px 24px rgba(19,124,216,.10)}
.side-float>a,.side-float button{min-height:40px;border:0;background:#fff;color:#137CD8;padding:8px 10px;border-radius:8px;font-weight:700;touch-action:manipulation}
.side-float .main-btn{color:#fff;background:linear-gradient(135deg,#45C7FF 0%,#2FA8F7 48%,#137CD8 100%)}
.mobile-bottom{display:none}
.mobile-drawer,.drawer-mask{display:none}
@media(max-width:980px){
  .header-inner{min-height:62px;padding:0 12px}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
  .nav-core,.channel-bar{display:none}
  .header-btn{min-width:74px;padding:0 13px}
  .site-logo{min-width:0;justify-content:center}
  .site-logo img{height:32px;max-width:125px}
  .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{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid rgba(47,168,247,.14)}
  .drawer-close{min-height:40px;border:0;background:#F4F8FF;color:#137CD8;border-radius:8px;padding:0 12px;font-weight:800;touch-action:manipulation}
  .drawer-group{padding:14px;border-bottom:1px solid rgba(47,168,247,.10)}
  .drawer-group strong{display:block;color:#5D718A;font-size:13px;margin-bottom:8px}
  .drawer-group a{display:block;padding:9px 0;color:#24364F;font-weight:700;min-height:40px;touch-action:manipulation}
  .side-float{display:none}
  .mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:8500;background:#fff;border-top:1px solid rgba(47,168,247,.2)}
  .mobile-bottom a{min-height:52px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
  body{padding-bottom:52px}
  .hero{grid-template-columns:1fr;padding:20px}
  .hero-text{order:1}.hero-media{order:2}
  .image-grid{grid-template-columns:repeat(2,1fr)}
  .image-grid .media{height:165px}
  .split{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .list-row{grid-template-columns:1fr;gap:6px}
}
@media(max-width:480px){
  .shell{padding:24px 14px 46px}
  .article{padding:20px}
  .image-grid .media{height:145px}
  .hero h1,.article h1{font-size:28px}
  .section-title{font-size:22px}
}