*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:#F4FBFF;color:#223044;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}
img,svg,video{max-width:100%}
a{color:#0877C9}
button,input,select,textarea{font:inherit}
.wrap{width:min(1180px,calc(100% - 36px));margin:0 auto}
.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:flex;align-items:center;flex:0 0 auto;text-decoration:none}
.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.drawer-logo img,.footer-logo img{display:block;height:38px;width:auto;max-width:160px;object-fit:contain}
.logo-placeholder{display:block;width:154px;height:38px;border-radius:10px;background:#EAF7FF;border:1px solid rgba(28,168,246,.12)}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;white-space:nowrap;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}
.mobile-menu-btn{display:none;width:42px;height:42px;border:0;background:#EAF7FF;border-radius:12px;padding:9px;cursor:pointer}
.mobile-menu-btn span{display:block;height:2px;background:#0877C9;margin:4px 0;border-radius:2px}
.channel-bar{display:block;background:#EAF7FF;border-bottom:1px solid rgba(28,168,246,.12)}
.channel-inner{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;gap:2px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin}
.channel-inner a{flex:0 0 auto;padding:10px 9px;color:#5F7082;text-decoration:none;font-size:14px;font-weight:700;white-space:nowrap}
.channel-inner a:hover,.channel-inner a.is-current{color:#0877C9}
.mobile-drawer,
.drawer-mask{display:none}
.site-main{min-height:58vh;padding:36px 64px 0 0}
.section{padding:44px 0}
.section-tight{padding:28px 0}
h1,h2,h3{color:#0877C9;margin-top:0;line-height:1.28}
h1{font-size:clamp(34px,4.2vw,46px);letter-spacing:-.02em}
h2{font-size:clamp(24px,2.8vw,32px)}
h3{font-size:19px}
p,li{font-size:17px;line-height:1.82}
.lead{font-size:18px;color:#31445A;max-width:820px}
.eyebrow{display:inline-block;margin-bottom:10px;color:#0877C9;font-weight:800;letter-spacing:.08em;font-size:13px}
.soft-panel,.info-card,.article-box,.topic-card,.faq-item{background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:16px;box-shadow:0 16px 40px rgba(8,119,201,.08)}
.soft-panel{padding:30px}
.info-card{padding:24px}
.info-card p,.article-box p{margin-bottom:0;color:#4E6175}
.text-link{display:inline-flex;margin-top:12px;text-decoration:none;font-weight:800;color:#0877C9}
.text-link:hover{text-decoration:underline}
.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,.carousel-placeholder{display:block;width:100%;height:100%;background:linear-gradient(135deg,#EAF7FF,#F6FCFF)}
.media.content-media{min-height:200px;max-height:240px}
.media.card-media{min-height:150px;max-height:176px}
.home-carousel{position:relative;width:min(1180px,calc(100% - 36px));height:340px;margin:0 auto;border-radius:16px;overflow:hidden;background:#FFFFFF;box-shadow:0 16px 40px rgba(8,119,201,.08)}
.carousel-slide{display:none;position:absolute;inset:0;background:#FFFFFF}
.carousel-slide.is-active{display:block}
.carousel-slide img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:42px;height:42px;border:1px solid rgba(28,168,246,.18);border-radius:999px;background:rgba(255,255,255,.9);color:#0877C9;font-size:24px;cursor:pointer}
.carousel-prev{left:16px}.carousel-next{right:16px}
.carousel-dots{position:absolute;left:0;right:0;bottom:14px;z-index:5;display:flex;justify-content:center;gap:8px}
.carousel-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#A9CBE1;cursor:pointer}
.carousel-dot.is-active{background:#0877C9;transform:scale(1.16)}
.magazine-grid{display:grid;grid-template-columns:minmax(0,58fr) minmax(0,42fr);gap:22px;align-items:stretch}
.magazine-lead{padding:26px;background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:16px;box-shadow:0 16px 40px rgba(8,119,201,.08)}
.magazine-lead .media{margin:20px 0 16px}
.magazine-stack{display:grid;gap:16px}
.magazine-stack .info-card{display:flex;flex-direction:column;justify-content:center;min-height:0}
.topic-strip{display:flex;gap:10px;overflow-x:auto;max-width:100%;padding:2px 0 10px;overscroll-behavior-inline:contain}
.topic-strip a{flex:0 0 auto;padding:10px 16px;border-radius:999px;background:#FFFFFF;border:1px solid rgba(28,168,246,.18);text-decoration:none;font-weight:800;color:#0877C9;white-space:nowrap}
.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.boundary-read{max-width:840px;margin:0 auto;background:#EAF7FF;border-radius:16px;padding:28px 30px;border:1px solid rgba(28,168,246,.12)}
.boundary-read p{margin:0;color:#3D5368}
.article-shell{width:min(980px,calc(100% - 36px));margin:0 auto;padding:18px 0 56px}
.article-head{max-width:840px;padding:26px 0 18px}
.article-head p{color:#5F7082;margin-bottom:0}
.article-body{max-width:840px}
.article-box{padding:28px;margin:20px 0}
.article-body > p{margin:0 0 18px}
.article-body ul,.article-body ol{padding-left:22px}
.article-body li{margin:7px 0}
.article-media-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:center;margin:22px 0 30px}
.article-media-wrap.reverse{grid-template-columns:.95fr 1.05fr}
.article-media-wrap .media{min-height:220px}
.article-media-copy{background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:26px}
.toc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0}
.toc a{display:block;background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:16px 18px;text-decoration:none;font-weight:800;color:#0877C9}
.steps{counter-reset:step;display:grid;gap:14px;margin:24px 0}
.step{position:relative;padding:20px 20px 20px 68px;background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:16px}
.step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:32px;height:32px;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;margin:22px 0}
.compare > div{background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:16px;padding:24px}
.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:28px}
.related-links a{padding:15px 16px;background:#EAF7FF;border-radius:14px;text-decoration:none;font-weight:800;text-align:center;color:#0877C9}
.mini-list{display:grid;gap:12px;margin:20px 0}
.mini-list a{display:flex;justify-content:space-between;gap:12px;background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:14px;padding:16px 18px;text-decoration:none;color:#223044;font-weight:700}
.mini-list a span{color:#0877C9}
.reading-note{padding:20px 22px;background:#EAF7FF;border-radius:14px;border-left:4px solid #1CA8F6;margin:24px 0}
.reading-note p{margin:0;color:#41586C}
.service-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:22px 0}
.service-index a{display:block;padding:22px;background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:16px;text-decoration:none}
.service-index strong{display:block;color:#0877C9;font-size:19px;margin-bottom:6px}
.service-index span{color:#5F7082;line-height:1.7}
.faq-list{display:grid;gap:16px;margin-top:24px}
.faq-item{padding:24px}
.faq-item h2{font-size:20px;margin-bottom:10px}
.faq-item p{margin:0;color:#4F6277}
.prefooter-links{padding:26px 0;background:#F4FBFF}
.prefooter-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.prefooter-grid a{display:block;padding:18px 20px;background:#FFFFFF;border:1px solid rgba(28,168,246,.12);border-radius:14px;text-decoration:none}
.prefooter-grid strong{display:block;color:#0877C9;margin-bottom:5px}
.prefooter-grid span{color:#6A7B8D;font-size:14px;line-height:1.6}
.site-footer{background:#082A46;color:#EAF8FF;padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:28px}
.footer-grid > div{min-width:0}
.footer-grid strong{display:block;color:#FFFFFF;margin-bottom:14px}
.footer-grid a{display:block;color:#D8F1FF;text-decoration:none;margin:9px 0}
.footer-grid a:hover{text-decoration:underline}
.footer-brand p{font-size:15px;line-height:1.75;color:#C9E8F8}
.footer-bottom{border-top:1px solid rgba(234,248,255,.16);margin-top:28px;padding-top:20px;display:flex;justify-content:space-between;gap:24px;align-items:flex-end}
.footer-bottom p{margin:0;font-size:13px;line-height:1.7;color:#C9E8F8}
.floating-tools{position:fixed;right:14px;top:40%;z-index:8000;display:flex;flex-direction:column;gap:8px;width:88px}
.floating-tools a,.floating-tools button{border:1px solid rgba(28,168,246,.18);background:#FFFFFF;color:#0877C9;text-decoration:none;text-align:center;padding:10px 6px;border-radius:12px;font-size:13px;font-weight:800;box-shadow:0 10px 26px rgba(8,119,201,.08);cursor:pointer}
.floating-tools .float-main{background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#FFFFFF;border:0}
.mobile-bottom{display:none}
body.drawer-open{overflow:hidden}
@media(max-width:1080px) and (min-width:981px){.nav-core a{padding-left:8px;padding-right:8px;font-size:14px}.site-logo img{max-width:150px}.header-inner{gap:8px}}
@media(max-width:980px){
  .site-header{position:sticky}
  .header-inner{min-height:62px;padding:0 12px;display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:10px}
  .mobile-menu-btn{display:block}
  .nav-core{display:none}
  .site-logo{justify-self:center;min-width:0}
  .site-logo img{height:36px;max-width:150px}
  .logo-placeholder{width:138px;height:34px}
  .header-action{height:40px;min-width:82px;padding:0 14px;font-size:14px}
  .channel-bar{display:none}
  .site-main{padding:22px 0 72px}
  .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 rgba(28,168,246,.12);display:flex;align-items:center;justify-content:space-between;gap:12px}
  .drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:#EAF7FF;color:#0877C9;font-size:28px;line-height:1;cursor:pointer}
  .drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:12px 14px 28px}
  .drawer-group{padding:10px 0 14px;border-bottom:1px solid rgba(28,168,246,.1)}
  .drawer-group strong{display:block;color:#0877C9;font-size:13px;margin:0 0 6px}
  .drawer-group a{display:block;padding:10px 4px;color:#223044;text-decoration:none;font-weight:700}
  .floating-tools{display:none}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;height:58px;background:#FFFFFF;border-top:1px solid rgba(28,168,246,.14);display:grid;grid-template-columns:repeat(4,1fr);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;color:#0877C9;text-decoration:none;font-weight:800;font-size:14px}
  .home-carousel{height:260px}
  .magazine-grid,.article-media-wrap,.article-media-wrap.reverse{grid-template-columns:1fr}
  .three-grid,.prefooter-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
  .footer-grid > div:last-child{grid-column:2/4}
}
@media(max-width:640px){
  .wrap,.article-shell,.home-carousel{width:min(100% - 24px,1180px)}
  .header-inner{grid-template-columns:40px minmax(0,1fr) auto}
  .mobile-menu-btn{width:40px;height:40px}
  .site-logo img{height:32px;max-width:126px}
  .logo-placeholder{width:118px;height:32px}
  .header-action{min-width:76px;padding:0 11px;font-size:13px}
  .site-main{padding-top:16px}
  .section{padding:32px 0}
  .section-tight{padding:22px 0}
  h1{font-size:clamp(26px,8vw,32px)}
  h2{font-size:24px}
  p,li{font-size:16px;line-height:1.8}
  .lead{font-size:17px}
  .home-carousel{height:182px;border-radius:14px}
  .carousel-prev,.carousel-next{width:36px;height:36px;font-size:20px}.carousel-prev{left:8px}.carousel-next{right:8px}
  .magazine-lead,.soft-panel,.info-card,.article-box,.article-media-copy{padding:20px}
  .three-grid,.compare,.toc,.related-links,.service-index,.prefooter-grid,.footer-grid{grid-template-columns:1fr}
  .footer-grid > div:last-child{grid-column:auto}
  .footer-bottom{display:block}.footer-bottom p + p{margin-top:12px}
  .article-media-wrap .media{min-height:190px}
  .boundary-read{padding:22px}
}
@media(max-width:430px){.home-carousel{height:170px}.header-action{min-width:72px}.site-logo img{max-width:118px}}
@media(max-width:390px){.home-carousel{height:162px}.header-action{padding:0 9px}.header-inner{gap:7px}.site-logo img{max-width:108px}}
@media(max-width:375px){.home-carousel{height:154px}.site-logo img{max-width:102px}.header-action{min-width:68px;font-size:12px}.mobile-menu-btn{width:38px;height:38px}}