:root{
  --page:#F4FBFF;--card:#FFFFFF;--soft:#EAF7FF;--blue:#1CA8F6;--bright:#38C7FF;--deep:#0877C9;
  --menu:#1D2A3A;--text:#223044;--muted:#5F7082;--hint:#7A8A9A;--footer:#082A46;--footerText:#EAF8FF;
  --line:rgba(28,168,246,.12);--shadow:0 16px 40px rgba(8,119,201,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--page);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.82;overflow-x:hidden}
body.drawer-open{overflow:hidden}
a{color:var(--deep);text-decoration:none}
a:hover{color:#055f9e}
img,svg,video{max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(8,119,201,.08)}
.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-logo,.drawer-logo,.footer-logo{display:inline-flex;align-items:center;min-width:0}
.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.logo-placeholder{display:inline-flex;align-items:center;justify-content:center;height:40px;min-width:126px;padding:0 14px;border-radius:10px;background:#EAF7FF;color:#0877C9;font-size:20px;font-weight:800;letter-spacing:.04em}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0}
.nav-core a{color:#1D2A3A;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent}
.nav-core a.is-current,.nav-core a:hover{color:#0877C9;border-bottom:2px solid #1CA8F6}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 12px 26px rgba(8,119,201,.18);white-space:nowrap}
.main-btn:hover{color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;width:42px;height:42px;padding:9px;border:0;background:transparent;border-radius:10px}
.menu-toggle span{display:block;height:2px;background:#1D2A3A;margin:5px 0;border-radius:2px}
.channel-bar{background:#EAF7FF;border-top:1px solid rgba(28,168,246,.07)}
.channel-inner{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;align-items:center;gap:2px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin}
.channel-inner a{flex:0 0 auto;padding:9px 10px;color:#5F7082;font-size:14px;font-weight:700;white-space:nowrap}
.channel-inner a.is-current,.channel-inner a:hover{color:#0877C9}
.site-main{min-height:60vh}
.page-wrap{width:min(1180px,calc(100% - 36px));margin:0 auto;max-width:100%}
.section{padding:56px 0}
.section-tight{padding:34px 0}
.hero{padding:48px 0 28px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center}
.hero-copy{max-width:780px}
.eyebrow{margin:0 0 8px;color:var(--deep);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3{color:var(--deep);line-height:1.28;margin-top:0}
h1{font-size:clamp(34px,4.4vw,46px);margin-bottom:16px;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
h3{font-size:20px;margin-bottom:10px}
p{margin:0 0 16px}
.lead{font-size:18px;line-height:1.88;color:#34465b;max-width:820px}
.muted{color:var(--muted)}
.reading{width:min(840px,100%);margin:0 auto}
.reading.narrow{width:min(760px,100%)}
.reading p{font-size:17px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:24px;min-width:0}
.soft-card{background:#EAF7FF;border:1px solid rgba(28,168,246,.1);border-radius:16px;padding:22px}
.card-grid{display:grid;gap:20px}
.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card p:last-child,.soft-card p:last-child{margin-bottom:0}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#EAF7FF;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:linear-gradient(135deg,#EAF7FF,#F8FDFF);color:#7A8A9A;font-size:14px}
.media.card-media{height:168px;aspect-ratio:auto}
.media.feature-media{height:230px;aspect-ratio:auto}
.media.contact-media{height:230px;aspect-ratio:auto}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:800;color:var(--deep)}
.text-link::after{content:'→'}
.list-clean{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.list-clean li{position:relative;padding-left:18px;color:#34465b}
.list-clean li::before{content:'';position:absolute;left:0;top:.75em;width:7px;height:7px;border-radius:50%;background:#1CA8F6}
.tag-row{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;max-width:100%;scrollbar-width:thin}
.tag-row a{flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 15px;border-radius:999px;background:#fff;border:1px solid rgba(28,168,246,.18);color:#34516b;font-weight:700;white-space:nowrap}
.tag-row a:hover,.tag-row a.is-current{background:#EAF7FF;color:#0877C9;border-color:rgba(8,119,201,.26)}
.note{border-left:4px solid #1CA8F6;background:#fff;border-radius:0 14px 14px 0;padding:18px 20px;color:#44576a}
.boundary{width:min(820px,100%);margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 26px;font-size:17px}
.steps{counter-reset:step;display:grid;gap:14px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 22px 22px 72px;box-shadow:var(--shadow)}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:22px;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#EAF7FF;color:#0877C9;font-weight:800}
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.compare .card{box-shadow:none}
.mini-index{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}
.mini-index a{display:inline-flex;padding:7px 12px;border-radius:10px;background:#EAF7FF;color:#0877C9;font-weight:700}
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.related a{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;font-weight:800;color:#1D2A3A;box-shadow:0 10px 28px rgba(8,119,201,.05)}
.related a span{display:block;color:#7A8A9A;font-size:13px;font-weight:600;margin-top:4px}
.topic-intro{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:26px;align-items:center}
.topic-intro.reverse{grid-template-columns:minmax(280px,.9fr) minmax(0,1.1fr)}
.topic-intro.reverse .topic-copy{order:2}
.topic-intro.reverse .media{order:1}
.kicker{display:inline-flex;align-items:center;gap:8px;color:#0877C9;font-weight:800;font-size:14px;margin-bottom:10px}
.kicker::before{content:'';width:20px;height:2px;background:#38C7FF}
.article-sections{display:grid;gap:24px}
.article-sections section{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}
.article-sections section p:last-child{margin-bottom:0}
.split-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.link-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.link-columns section{background:#fff;border-radius:14px;border:1px solid var(--line);padding:20px}
.link-columns a{display:block;padding:5px 0;font-weight:700}
.faq-list{display:grid;gap:16px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px}
.faq-item h2{font-size:20px;margin-bottom:10px}
.faq-item p:last-child{margin-bottom:0}
.notice-list{display:grid;gap:14px}
.notice-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.notice-item time{display:block;color:#7A8A9A;font-size:13px;margin-bottom:4px}
.service-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.service-index a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;color:#1D2A3A;font-weight:800;box-shadow:var(--shadow)}
.service-index a span{display:block;margin-top:4px;color:#6f8090;font-size:14px;font-weight:500}
.carousel{position:relative;width:100%;height:330px;border-radius:16px;background:#fff;overflow:hidden;box-shadow:var(--shadow)}
.carousel-track,.carousel-slide{position:absolute;inset:0}
.carousel-slide{opacity:0;pointer-events:none;transition:opacity .35s ease;display:flex;align-items:center;justify-content:center;background:#fff}
.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(135deg,#EAF7FF,#fff)}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:40px;height:40px;border-radius:50%;border:1px solid rgba(8,119,201,.18);background:rgba(255,255,255,.88);color:#0877C9;font-size:28px;line-height:1}
.carousel-prev{left:14px}.carousel-next{right:14px}
.carousel-dots{position:absolute;z-index:3;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px}
.carousel-dot{width:10px;height:10px;border-radius:50%;border:0;padding:0;background:rgba(8,119,201,.24)}
.carousel-dot.is-active{background:#0877C9}
.magazine{display:grid;grid-template-columns:minmax(0,58fr) minmax(0,42fr);gap:22px;align-items:stretch}
.magazine-main{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.magazine-main .feature-media{margin:20px 0}
.magazine-stack{display:grid;gap:18px}
.magazine-stack .card{display:flex;flex-direction:column;justify-content:center;min-height:0}
.home-h1{font-size:clamp(30px,4vw,42px)}
.home-three .card{min-height:210px}
.site-footer{background:#082A46;color:#EAF8FF;margin-top:48px;padding:54px 0 26px}
.footer-grid{width:min(1180px,calc(100% - 36px));margin:0 auto;display:grid;grid-template-columns:1.25fr repeat(3,1fr);gap:34px}
.site-footer h2{font-size:17px;color:#fff;margin-bottom:12px}
.site-footer a{display:block;color:#EAF8FF;padding:3px 0}
.site-footer a:hover{color:#7ddcff}
.footer-brand p{color:#cfe5f5;max-width:340px}
.footer-logo img{height:42px;width:auto;max-width:176px;object-fit:contain;filter:none}
.footer-placeholder{background:rgba(255,255,255,.1);color:#fff}
.footer-bottom{width:min(1180px,calc(100% - 36px));margin:34px auto 0;padding-top:20px;border-top:1px solid rgba(234,248,255,.14);display:flex;gap:22px;justify-content:space-between;color:#bfd9ea;font-size:13px}
.footer-bottom p{margin:0}
.desktop-float{position:fixed;right:14px;top:42%;z-index:9000;width:108px;display:grid;gap:8px}
.desktop-float a{display:flex;align-items:center;justify-content:center;min-height:38px;padding:7px 9px;background:#fff;border:1px solid rgba(28,168,246,.18);border-radius:12px;color:#0877C9;font-size:13px;font-weight:800;box-shadow:0 10px 24px rgba(8,119,201,.08)}
.desktop-float .float-register{background:linear-gradient(135deg,#38C7FF,#1CA8F6 48%,#0877C9);color:#fff;border-color:transparent}
.mobile-bottom{display:none}
.mobile-drawer,
.drawer-mask{display:none}

@media(min-width:981px) and (max-width:1320px){.site-main{padding-right:104px}}
@media(max-width:1180px){
  .desktop-float{right:8px;width:96px}
  .header-inner{padding-right:110px}
  .channel-inner{padding-right:110px}
}
@media(max-width:980px){
  body{padding-bottom:64px}
  .site-header{backdrop-filter:none}
  .header-inner{display:grid;grid-template-columns:42px minmax(0,1fr) auto;min-height:64px;padding:0 12px;gap:8px}
  .menu-toggle{display:block}
  .site-logo{justify-self:center;max-width:160px;min-width:0}
  .site-logo img{height:36px;max-width:150px}
  .site-logo .logo-placeholder{height:36px;min-width:112px;font-size:17px;padding:0 10px}
  .nav-core,.channel-bar,.desktop-float{display:none}
  .header-action{justify-self:end;height:40px;min-width:88px;padding:0 14px;font-size:14px}
  .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(8,119,201,.16);
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(8,42,70,.42);
    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;padding:0 14px;border-bottom:1px solid #eaf2f7;display:flex;align-items:center;justify-content:space-between;gap:12px}
  .drawer-logo img{height:36px;width:auto;max-width:154px;object-fit:contain}
  .drawer-close{width:40px;height:40px;border:0;border-radius:10px;background:#EAF7FF;color:#0877C9;font-size:28px;line-height:1}
  .drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:12px 14px 34px;overscroll-behavior:contain}
  .drawer-group{padding:10px 0;border-bottom:1px solid #eef5f9}
  .drawer-group h2{font-size:13px;color:#7A8A9A;margin:0 0 7px;letter-spacing:.08em}
  .drawer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
  .drawer-links a{display:block;padding:9px 10px;border-radius:9px;color:#1D2A3A;font-weight:700;font-size:14px}
  .drawer-links a.is-current{background:#EAF7FF;color:#0877C9}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;height:60px;padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(8,119,201,.1);box-shadow:0 -8px 24px rgba(8,119,201,.07)}
  .mobile-bottom a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:#5F7082;font-size:12px;font-weight:700}
  .mobile-bottom a span{font-size:18px;line-height:1.1;color:#0877C9}
  .mobile-bottom a.is-current{color:#0877C9;background:#F4FBFF}
  .hero{padding:36px 0 24px}
  .section{padding:42px 0}
  .hero-grid,.topic-intro,.topic-intro.reverse,.magazine{grid-template-columns:1fr}
  .topic-intro.reverse .topic-copy,.topic-intro.reverse .media{order:initial}
  .cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-bottom{display:block}
  .footer-bottom p+p{margin-top:8px}
  .carousel{height:260px}
}
@media(max-width:640px){
  .page-wrap{width:min(100% - 28px,1180px)}
  h1{font-size:clamp(26px,8vw,32px)}
  h2{font-size:24px}
  .lead,.reading p{font-size:16px;line-height:1.82}
  .section{padding:34px 0}
  .section-tight{padding:26px 0}
  .hero{padding:28px 0 20px}
  .card,.soft-card,.article-sections section{padding:20px}
  .cols-2,.cols-3,.cols-4,.compare,.split-list,.related,.link-columns,.service-index{grid-template-columns:1fr}
  .carousel{height:180px;border-radius:14px}
  .carousel-prev,.carousel-next{width:34px;height:34px;font-size:24px}
  .carousel-prev{left:8px}.carousel-next{right:8px}
  .carousel-dots{bottom:10px}
  .media.card-media{height:156px}.media.feature-media,.media.contact-media{height:210px}
  .magazine-main{padding:20px}
  .home-three .card{min-height:0}
  .tag-row{margin-right:-14px;padding-right:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-top:40px}
  .drawer-links{grid-template-columns:1fr 1fr}
}
@media(max-width:390px){
  .header-inner{grid-template-columns:40px minmax(0,1fr) auto;padding:0 10px;gap:5px}
  .menu-toggle{width:40px;padding:8px}
  .site-logo img{height:32px;max-width:126px}
  .site-logo .logo-placeholder{height:32px;min-width:96px;font-size:15px}
  .header-action{height:38px;min-width:80px;padding:0 11px;font-size:13px}
  .carousel{height:165px}
}