:root{
  --bg:#F4FBFF;--surface:#FFFFFF;--soft:#EAF7FF;--soft-2:#F2FAFF;
  --blue:#1CA8F6;--cyan:#38C7FF;--deep:#0877C9;--sky:#7FE4FF;
  --ink:#223044;--muted:#5F7082;--quiet:#7A8A9A;--footer:#082A46;
  --line:rgba(28,168,246,.14);--shadow:0 16px 40px rgba(8,119,201,.09);
  --gradient:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);
  --radius:22px;--header-height:124px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:145px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
body.drawer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
h1,h2,h3,.section-title{color:var(--deep);line-height:1.28}
h1{font-size:clamp(2rem,4vw,3.7rem);letter-spacing:-.04em;margin-bottom:22px}
h2{font-size:clamp(1.55rem,2.6vw,2.35rem);margin-bottom:16px}
h3{font-size:1.1rem;margin-bottom:10px}
p{color:var(--muted)}
.section-shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.section-block{padding:68px 0}
.skip-link{position:fixed;left:12px;top:-80px;z-index:9999;background:var(--deep);color:#fff;padding:10px 16px;border-radius:10px}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(8,119,201,.08)}
.top-nav{height:76px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:34px}
.brand-logo{display:flex;align-items:center;min-width:145px}
.brand-logo img{width:142px;max-height:52px;object-fit:contain}
.nav-core{display:flex;align-items:center;justify-content:center;gap:10px;min-width:0}
.nav-core a{position:relative;padding:11px 15px;border-radius:999px;color:#1D2A3A;font-weight:700;white-space:nowrap;transition:.25s ease}
.nav-core a:hover,.nav-core a.active{color:var(--blue);background:rgba(28,168,246,.07)}
.nav-core a.active::after{content:"";position:absolute;left:50%;bottom:1px;width:25px;height:3px;border-radius:999px;background:var(--blue);transform:translateX(-50%)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 25px;border-radius:999px;background:var(--gradient);color:#fff;font-weight:800;box-shadow:0 12px 26px rgba(8,119,201,.18);transition:.25s ease}
.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(8,119,201,.24)}
.header-register{justify-self:end;white-space:nowrap}
.menu-toggle{display:none;width:42px;height:42px;padding:9px;border:1px solid var(--line);border-radius:13px;background:#fff}
.menu-toggle span{display:block;height:2px;margin:5px 0;border-radius:5px;background:var(--deep)}
.channel-bar{background:rgba(234,247,255,.88);border-top:1px solid rgba(28,168,246,.1);border-bottom:1px solid rgba(28,168,246,.1);overflow-x:auto;scrollbar-width:thin}
.channel-inner{display:flex;align-items:center;gap:8px;padding-block:9px;white-space:nowrap}
.channel-bar a{padding:6px 13px;color:var(--muted);border-radius:999px;font-size:.9rem;transition:.2s ease}
.channel-bar a:hover,.channel-bar a.active{color:var(--deep);background:rgba(28,168,246,.1)}
.drawer-overlay{position:fixed;inset:0;z-index:190;background:rgba(8,42,70,.46);opacity:0;visibility:hidden;transition:.25s}
.mobile-drawer{position:fixed;inset:0 auto 0 0;z-index:200;width:min(84vw,320px);padding:0 18px 26px;background:#fff;box-shadow:24px 0 60px rgba(8,42,70,.2);transform:translateX(-105%);transition:.28s ease;overflow-y:auto}
.drawer-open .drawer-overlay{opacity:1;visibility:visible}
.drawer-open .mobile-drawer{transform:translateX(0)}
.drawer-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;padding:18px 0 13px;background:#fff;border-bottom:1px solid var(--line)}
.drawer-head img{width:138px;max-height:48px;object-fit:contain}
.drawer-head button{width:40px;height:40px;border:0;border-radius:50%;background:var(--soft);color:var(--deep);font-size:1.65rem;line-height:1}
.mobile-drawer nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding-top:16px}
.mobile-drawer nav a{padding:10px 12px;border-radius:12px;color:var(--muted);background:var(--soft-2);font-size:.93rem}
.mobile-drawer nav a.active{background:var(--gradient);color:#fff;font-weight:700}
.floating-service{position:fixed;right:18px;top:42%;z-index:60;display:grid;gap:8px;width:92px}
.floating-service a,.floating-service button{display:flex;align-items:center;justify-content:center;min-height:42px;padding:8px;border:1px solid var(--line);border-radius:13px;background:#fff;color:var(--deep);box-shadow:0 14px 30px rgba(8,119,201,.1);font-weight:700;font-size:.86rem}
.floating-service a.register-link{background:var(--gradient);color:#fff;border:0}
.floating-service button{width:100%}
.banner-slider{position:relative;z-index:1;max-width:1200px;height:clamp(280px,32vw,380px);margin:24px auto 34px;border-radius:24px;background:#fff;box-shadow:0 16px 40px rgba(8,119,201,.1);overflow:hidden}
.banner-slider .slide{display:none;width:100%;height:100%}
.banner-slider .slide.active{display:block}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#fff}
.slider-arrow{position:absolute;top:50%;z-index:3;width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.9);color:var(--blue);box-shadow:0 8px 20px rgba(8,119,201,.14);transform:translateY(-50%);font-size:1.4rem}
.slider-arrow.prev{left:16px}.slider-arrow.next{right:16px}
.slider-dots{position:absolute;left:50%;bottom:14px;z-index:3;display:flex;gap:8px;transform:translateX(-50%)}
.slider-dots button{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:rgba(28,168,246,.26)}
.slider-dots button.active{width:28px;border-radius:999px;background:var(--blue)}
.home-intro,.inner-hero{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:52px;padding-top:58px;padding-bottom:58px}
.home-intro{padding-top:48px}
.hero-copy{min-width:0}
.hero-lead{font-size:1.05rem;max-width:720px}
.hero-actions{display:flex;align-items:center;gap:20px;margin-top:28px}
.text-link{color:var(--deep);font-weight:800;border-bottom:1px solid rgba(8,119,201,.28)}
.text-link:hover{color:var(--blue)}
.section-kicker,.badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;color:var(--blue);font-size:.83rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
.section-kicker::before{content:"";width:22px;height:3px;border-radius:999px;background:var(--gradient)}
.hero-visual{margin:0;min-height:300px;padding:26px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(145deg,#fff,#EAF7FF);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}
.hero-visual img{width:100%;max-height:300px;object-fit:contain}
.hero-note{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hero-note div{display:flex;flex-direction:column;min-height:130px;padding:24px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}
.hero-note span{color:var(--cyan);font-size:1.3rem;font-weight:900}
.hero-note strong{margin-top:auto;color:var(--deep);font-size:1.12rem}
.section-heading{max-width:800px;margin-bottom:34px}
.section-heading.compact{margin-bottom:24px}
.section-heading p{font-size:1.02rem}
.info-grid{display:grid;gap:18px}
.info-grid.four-col,.four-col{grid-template-columns:repeat(4,1fr)}
.three-col{grid-template-columns:repeat(3,1fr)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.info-card,.zone-card,.review-card,.quick-card,.notice-panel,.review-panel,.feature-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
.info-card{padding:26px}
.info-card .num{display:block;margin-bottom:24px;color:var(--cyan);font-size:1.7rem;font-weight:900}
.info-card p{margin-bottom:0;font-size:.93rem}
.quick-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.quick-card{padding:20px 22px;transition:.25s ease}
.quick-card:hover{transform:translateY(-4px);border-color:rgba(28,168,246,.35)}
.quick-card h3{margin-bottom:6px}
.quick-card p{margin-bottom:12px;font-size:.9rem}
.platform-strip{padding:30px 34px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(110deg,#fff,#EAF7FF);box-shadow:var(--shadow)}
.platform-strip p{margin-bottom:0;font-size:1.02rem}
.soft-panel{width:min(1220px,calc(100% - 32px));padding-inline:20px;border-radius:34px;background:linear-gradient(180deg,rgba(234,247,255,.72),rgba(244,251,255,.25))}
.content-stack{display:grid;gap:20px}
.content-row{display:grid;grid-template-columns:1fr 130px;align-items:center;gap:30px;padding:38px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow)}
.content-row.reverse{grid-template-columns:130px 1fr}
.content-row.reverse .content-copy{order:2}
.content-index{display:flex;align-items:center;justify-content:center;width:110px;height:110px;border-radius:26px;background:var(--gradient);color:#fff;font-size:2.4rem;font-weight:900;box-shadow:0 18px 35px rgba(8,119,201,.2)}
.content-copy p{max-width:860px}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 20px;padding:0;margin:20px 0 22px;list-style:none}
.check-list li{position:relative;padding-left:22px;color:var(--muted)}
.check-list li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}
.zone-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.zone-card{overflow:hidden}
.zone-card img{width:100%;height:190px;object-fit:contain;background:var(--soft-2);padding:14px}
.zone-card .zone-copy{padding:24px}
.zone-card p{font-size:.93rem}
.horizontal-content{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{overflow:hidden}
.feature-card img{width:100%;height:200px;object-fit:contain;background:var(--soft-2);padding:15px}
.feature-card .copy{padding:25px}
.review-panel,.notice-panel{padding:36px}
.review-panel{background:linear-gradient(145deg,#fff,#F2FAFF)}
.review-panel blockquote{margin:18px 0;color:var(--ink);font-size:1.12rem;line-height:1.9}
.review-meta{margin-bottom:0;color:var(--quiet);font-size:.9rem}
.notice-panel{background:#fff}
.faq-list{display:grid;gap:12px}
.faq-list details{border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:0 10px 24px rgba(8,119,201,.05);overflow:hidden}
.faq-list summary{position:relative;padding:19px 54px 19px 22px;color:var(--deep);font-weight:800;cursor:pointer;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:22px;top:13px;color:var(--blue);font-size:1.6rem}
.faq-list details[open] summary::after{content:"−"}
.faq-list details p{padding:0 22px 20px;margin:0}
.compliance-strip{display:flex;align-items:flex-start;gap:22px;margin-top:18px;margin-bottom:72px;padding:24px 28px;border-left:4px solid var(--blue);border-radius:0 18px 18px 0;background:#EAF7FF}
.compliance-strip strong{flex:0 0 auto;color:var(--deep)}
.compliance-strip p{margin:0}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card{padding:24px}
.review-card p{margin-bottom:16px}
.review-card strong{color:var(--deep)}
.site-footer{padding:58px 0 0;background:var(--footer);color:#EAF8FF}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:42px;padding-bottom:42px}
.footer-brand img{width:145px;max-height:54px;object-fit:contain;filter:brightness(0) invert(1)}
.footer-brand p{max-width:420px;margin-top:18px;color:rgba(234,248,255,.76)}
.site-footer h2{color:#fff;font-size:1rem;margin-bottom:15px}
.site-footer a{display:block;margin:8px 0;color:rgba(234,248,255,.78);font-size:.92rem}
.site-footer a:hover{color:#fff}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom p{margin:0;color:rgba(234,248,255,.65);font-size:.86rem}
.footer-bottom div{display:flex;gap:16px}
.footer-bottom a{margin:0;white-space:nowrap}
.mobile-bottom-nav{display:none}
.contact-box{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.contact-box article{padding:24px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}
@media (max-width:1100px){
  .floating-service{display:none}
  .nav-core{gap:2px}.nav-core a{padding-inline:11px}
  .info-grid.four-col,.four-col{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}
  .footer-grid>div:last-child{grid-column:2/4}
}
@media (max-width:820px){
  :root{--header-height:70px}
  html{scroll-padding-top:82px}
  body{padding-bottom:72px}
  .section-shell{width:min(100% - 28px,720px)}
  .site-header{height:70px}
  .top-nav{height:70px;grid-template-columns:44px 1fr auto;gap:12px}
  .menu-toggle{display:block}
  .brand-logo{justify-self:center;min-width:0}
  .brand-logo img{width:128px;max-height:45px}
  .nav-core,.channel-bar{display:none}
  .header-register{min-height:40px;padding:8px 17px;font-size:.9rem}
  .banner-slider{height:clamp(180px,48vw,280px);margin-top:18px;border-radius:18px}
  .home-intro,.inner-hero{grid-template-columns:1fr;gap:28px;padding-top:42px;padding-bottom:42px}
  .hero-visual{min-height:220px}.hero-visual img{max-height:250px}
  .hero-note{order:2}
  .quick-nav,.zone-grid,.horizontal-content,.review-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .content-row,.content-row.reverse{grid-template-columns:1fr;padding:28px}
  .content-row.reverse .content-copy{order:0}
  .content-index{width:74px;height:74px;border-radius:20px;font-size:1.7rem}
  .section-block{padding:50px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:150;display:grid;grid-template-columns:repeat(4,1fr);padding:7px max(8px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(8,119,201,.08)}
  .mobile-bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:1px;color:var(--muted);font-size:.75rem}
  .mobile-bottom-nav span{font-size:1rem;color:var(--blue)}
  .mobile-bottom-nav a.active{color:var(--deep);font-weight:800}
}
@media (max-width:560px){
  h1{font-size:2rem}.section-shell{width:calc(100% - 24px)}
  .banner-slider{height:clamp(160px,52vw,220px);border-radius:15px}
  .slider-arrow{width:36px;height:36px}.slider-arrow.prev{left:8px}.slider-arrow.next{right:8px}
  .home-intro,.inner-hero{padding-top:34px;padding-bottom:34px}
  .hero-actions{flex-wrap:wrap;gap:14px}
  .hero-note{grid-template-columns:1fr 1fr;gap:10px}.hero-note div{min-height:105px;padding:17px}
  .info-grid.four-col,.four-col,.three-col,.quick-nav,.zone-grid,.horizontal-content,.review-grid,.contact-box{grid-template-columns:1fr}
  .info-card{padding:22px}.info-card .num{margin-bottom:13px}
  .platform-strip{padding:24px}
  .soft-panel{width:calc(100% - 16px);padding-inline:8px;border-radius:24px}
  .content-row,.content-row.reverse{padding:23px}
  .check-list{grid-template-columns:1fr}
  .compliance-strip{display:block;margin-bottom:50px}.compliance-strip strong{display:block;margin-bottom:8px}
  .footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto}
  .footer-bottom div{flex-wrap:wrap}
}