:root{
  --bg:#F4FBFF;--surface:#FFFFFF;--soft:#EAF7FF;--soft2:#F2FAFF;--blue:#1CA8F6;
  --bright:#38C7FF;--deep:#0877C9;--cyan:#7FE4FF;--ink:#223044;--muted:#5F7082;
  --note:#7A8A9A;--footer:#082A46;--shadow:0 16px 40px rgba(8,119,201,.08);
  --radius:22px;--container:1200px;--header-h:132px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;max-width:100%;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;max-width:100%;overflow-x:hidden}
body.drawer-open{overflow:hidden;touch-action:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
.section-wrap{width:min(calc(100% - 40px),var(--container));margin-left:auto;margin-right:auto}
.site-header{position:fixed;inset:0 0 auto;z-index:800;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(8,119,201,.08)}
.header-main{height:76px;display:flex;align-items:center;gap:28px}
.brand-logo{width:154px;min-width:154px;display:flex;align-items:center}
.brand-logo img{max-height:50px;width:auto;object-fit:contain}
.nav-core{display:flex;align-items:center;justify-content:center;gap:24px;min-width:0;flex:1;white-space:nowrap}
.nav-core a{color:#1D2A3A;position:relative;font-weight:700;padding:10px 6px;border-radius:10px}
.nav-core a:hover,.nav-core a.active{color:var(--blue);background:rgba(28,168,246,.06)}
.nav-core a.active::after{content:"";position:absolute;left:50%;bottom:-7px;width:28px;height:3px;border-radius:999px;background:var(--blue);transform:translateX(-50%)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;border-radius:999px;box-shadow:0 12px 26px rgba(8,119,201,.18);font-weight:800;border:0;transition:.2s ease}
.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(8,119,201,.25)}
.header-register{min-width:86px;padding:11px 22px;flex:none}
.channel-bar{background:rgba(234,247,255,.88);border-top:1px solid rgba(28,168,246,.10);border-bottom:1px solid rgba(28,168,246,.10);overflow-x:auto;white-space:nowrap;scrollbar-width:thin}
.channel-inner{display:flex;gap:8px;padding-top:10px;padding-bottom:10px}
.channel-bar a{color:var(--muted);border-radius:999px;padding:6px 13px;font-size:14px}
.channel-bar a:hover,.channel-bar a.active{color:var(--deep);background:rgba(28,168,246,.10)}
.site-main{padding-top:var(--header-h)}
.mobile-menu-toggle{display:none;background:none;border:0;padding:10px;min-width:44px;min-height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;touch-action:manipulation}
.mobile-menu-toggle span{width:23px;height:2px;background:var(--deep);border-radius:10px}
.drawer-overlay{position:fixed;inset:0;z-index:900;background:rgba(8,42,70,.42);opacity:0;transition:.22s ease}
.drawer-overlay.show{opacity:1}
.mobile-drawer{position:fixed;z-index:1000;inset:0 auto 0 0;width:84vw;max-width:320px;background:#fff;box-shadow:20px 0 50px rgba(8,42,70,.18);transform:translateX(-105%);transition:transform .24s ease;overflow-y:auto;-webkit-overflow-scrolling:touch}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid rgba(28,168,246,.12);z-index:2}
.drawer-head img{max-width:142px;max-height:46px;object-fit:contain}
.drawer-close{width:42px;height:42px;border:0;border-radius:50%;background:var(--soft);color:var(--deep);font-size:28px;line-height:1;touch-action:manipulation}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:16px 14px 28px}
.drawer-nav a{padding:12px 14px;border-radius:14px;background:var(--soft2);color:var(--muted);font-weight:600}
.drawer-nav a.active,.drawer-nav a:hover{background:var(--soft);color:var(--deep)}
.floating-service{position:fixed;right:18px;top:42%;z-index:60;display:grid;gap:8px;padding:10px;border-radius:18px;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);box-shadow:0 14px 30px rgba(8,119,201,.10)}
.floating-service a,.floating-service button{min-width:88px;padding:10px 12px;text-align:center;background:#fff;color:var(--deep);border:1px solid rgba(28,168,246,.14);border-radius:12px;font-size:14px;box-shadow:0 7px 18px rgba(8,119,201,.06)}
.floating-service .register-link{background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;border:0;font-weight:800}
.breadcrumb{padding-top:24px;display:flex;align-items:center;gap:8px;color:var(--note);font-size:14px}
.breadcrumb a{color:var(--blue)}
.banner-slider{max-width:1200px;height:350px;margin:24px auto 34px;border-radius:22px;background:#fff;box-shadow:0 16px 40px rgba(8,119,201,.10);overflow:hidden;position:relative;z-index:1}
.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%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border:0;border-radius:999px;background:rgba(255,255,255,.9);color:var(--blue);font-size:26px;box-shadow:0 8px 20px rgba(8,119,201,.14)}
.slider-prev{left:18px}.slider-next{right:18px}
.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.slider-dots button{width:10px;height:10px;padding:0;border-radius:50%;border:0;background:rgba(28,168,246,.24)}
.slider-dots button.active{background:var(--blue);transform:scale(1.15)}
.home-intro,.inner-hero,.content-section,.zone-card,.info-card,.review-card,.quick-item,.platform-strip,.faq-list details,.notice-panel{background:#fff;border:1px solid rgba(28,168,246,.12);box-shadow:var(--shadow)}
.home-intro{margin-top:30px;border-radius:var(--radius);padding:36px;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.home-intro h1,.inner-hero h1{font-size:clamp(30px,4vw,50px);line-height:1.2;margin:8px 0 18px;color:var(--deep)}
.home-intro p,.inner-hero p{font-size:17px;color:var(--muted);margin:0 0 16px}
.home-intro img,.hero-visual img{width:100%;max-height:300px;object-fit:contain;border-radius:18px;background:var(--soft2)}
.home-intro .main-btn{padding:12px 24px;margin-top:8px}
.section-kicker{display:inline-block;color:var(--blue);font-weight:800;letter-spacing:.08em;font-size:13px;text-transform:uppercase}
.section-heading{margin:64px 0 24px}
.section-heading h2{color:var(--deep);font-size:clamp(25px,3vw,36px);line-height:1.25;margin:8px 0}
.section-heading p{margin:8px 0 0;color:var(--muted)}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.quick-item{border-radius:18px;padding:22px;transition:.2s ease}
.quick-item:hover{transform:translateY(-3px);border-color:rgba(28,168,246,.34)}
.quick-item h3{color:var(--deep);margin:0 0 8px}
.quick-item p{color:var(--muted);font-size:14px;margin:0 0 12px}
.text-link{color:var(--blue);font-weight:800;display:inline-flex;align-items:center;gap:5px}
.text-link::after{content:"→"}
.platform-strip{border-radius:20px;padding:28px 32px;background:linear-gradient(135deg,#fff,#EAF7FF);margin-top:36px}
.platform-strip p{margin:0;color:var(--muted);font-size:16px}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.info-card{border-radius:18px;padding:24px}
.info-card .num{font-weight:900;color:var(--blue);font-size:22px}
.info-card h3{color:var(--deep);margin:10px 0}
.info-card p{color:var(--muted);margin:0;font-size:14px}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px}
.zone-card{border-radius:var(--radius);overflow:hidden}
.zone-card>img{width:100%;height:230px;object-fit:contain;background:var(--soft2);padding:10px}
.zone-body{padding:28px}
.zone-body h2,.zone-body h3{color:var(--deep);margin:8px 0 12px}
.zone-body p{color:var(--muted);margin:0 0 12px}
.label,.tag,.badge{color:var(--blue);font-size:13px;font-weight:800}
.mini-list,.check-list{padding-left:20px;color:var(--muted)}
.mini-list li,.check-list li{margin:6px 0}
.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.four-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.media-card{background:#fff;border:1px solid rgba(28,168,246,.12);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.media-card img{width:100%;height:190px;object-fit:contain;background:var(--soft2);padding:8px}
.media-card .body{padding:22px}
.media-card h3{color:var(--deep);margin:0 0 8px}
.media-card p{color:var(--muted);font-size:14px;margin:0 0 12px}
.text-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.text-panel{border-radius:20px;padding:28px;background:linear-gradient(145deg,#fff,#F2FAFF);border:1px solid rgba(28,168,246,.12);box-shadow:var(--shadow)}
.text-panel h3{color:var(--deep);margin:0 0 10px}
.text-panel p{color:var(--muted);margin:0}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.review-card{border-radius:18px;padding:24px}
.review-card .num{color:var(--blue);font-weight:900}
.review-card p{color:var(--muted);margin:10px 0 0}
.faq-section{padding-bottom:20px}
.faq-list{display:grid;gap:12px;background:transparent;border:0;box-shadow:none}
.faq-list details{border-radius:16px;overflow:hidden}
.faq-list summary{padding:18px 22px;color:var(--deep);font-weight:800;cursor:pointer;list-style:none;position:relative}
.faq-list summary::after{content:"+";position:absolute;right:20px;color:var(--blue);font-size:22px}
.faq-list details[open] summary::after{content:"−"}
.faq-list details p{padding:0 22px 20px;color:var(--muted);margin:0}
.inner-hero{margin-top:22px;border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.inner-hero-copy{min-width:0}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 18px;margin:18px 0 0}
.content-section{margin-top:24px;border-radius:var(--radius);padding:34px}
.content-section .section-heading{margin:0 0 16px}
.prose p{color:var(--muted);margin:0 0 16px}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;list-style:none;padding:0;margin:24px 0}
.feature-list li{background:var(--soft2);border-radius:14px;padding:16px}
.feature-list strong{display:block;color:var(--deep);margin-bottom:4px}
.feature-list span{color:var(--muted);font-size:14px}
.notice-panel{border-radius:20px;padding:26px;margin-top:24px;background:linear-gradient(145deg,#fff,#EAF7FF)}
.notice-panel h2{color:var(--deep);margin:0 0 8px}
.notice-panel p{margin:0;color:var(--muted)}
.contact-steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0;list-style:none}
.contact-steps li{counter-increment:step;background:var(--soft2);border-radius:16px;padding:20px;color:var(--muted)}
.contact-steps li::before{content:counter(step,decimal-leading-zero);display:block;color:var(--blue);font-weight:900;font-size:20px;margin-bottom:8px}
.compliance-strip{margin-top:70px;background:#EAF7FF;border-top:1px solid rgba(28,168,246,.12);border-bottom:1px solid rgba(28,168,246,.12)}
.compliance-inner{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding-top:28px;padding-bottom:28px}
.compliance-inner strong{color:var(--deep)}
.compliance-inner p{margin:5px 0 0;color:var(--muted);font-size:14px}
.site-footer{background:#082A46;color:#EAF8FF;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:34px}
.footer-brand img{max-width:160px;max-height:54px;object-fit:contain;filter:brightness(0) invert(1)}
.footer-brand p{color:#B9D8EA;max-width:420px}
.footer-grid h3{margin:0 0 14px;color:#fff}
.footer-grid a{display:block;color:#B9D8EA;margin:7px 0}
.footer-grid a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;color:#9FC5DB;font-size:13px}
.mobile-bottom-nav{display:none}

@media (max-width:1100px){
  .floating-service{display:none}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .four-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.5fr repeat(3,1fr)}
}
@media (max-width:820px){
  :root{--header-h:72px}
  .site-header{height:72px}
  .header-main{height:72px;gap:10px;width:calc(100% - 20px)}
  .mobile-menu-toggle{display:flex;flex:none}
  .nav-core,.channel-bar{display:none}
  .brand-logo{width:auto;min-width:0;flex:1;justify-content:center}
  .brand-logo img{max-height:44px;max-width:150px}
  .header-register{min-width:72px;padding:10px 15px;font-size:14px}
  .section-wrap{width:min(calc(100% - 24px),var(--container))}
  .site-main{padding-top:72px}
  .banner-slider{height:240px;margin:16px 12px 26px;border-radius:18px}
  .home-intro,.inner-hero{grid-template-columns:1fr;padding:26px}
  .home-intro .visual,.hero-visual{order:-1}
  .quick-grid,.three-grid,.review-grid,.split-grid,.text-wall{grid-template-columns:1fr}
  .info-grid,.four-grid,.feature-list{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .contact-steps{grid-template-columns:1fr 1fr}
  .mobile-bottom-nav{display:grid;position:fixed;z-index:700;left:10px;right:10px;bottom:calc(8px + env(safe-area-inset-bottom));grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border:1px solid rgba(28,168,246,.14);border-radius:18px;padding:8px;box-shadow:0 14px 34px rgba(8,42,70,.16)}
  .mobile-bottom-nav a{text-align:center;padding:8px 5px;color:var(--deep);font-weight:800;font-size:13px;touch-action:manipulation}
  body{padding-bottom:86px}
  .compliance-inner{grid-template-columns:1fr}
}
@media (max-width:560px){
  .banner-slider{height:190px}
  .slider-arrow{width:40px;height:40px;font-size:22px}
  .slider-prev{left:10px}.slider-next{right:10px}
  .home-intro,.inner-hero,.content-section{padding:22px}
  .home-intro h1,.inner-hero h1{font-size:30px}
  .section-heading{margin:48px 0 20px}
  .info-grid,.four-grid,.feature-list{grid-template-columns:1fr}
  .check-list{grid-template-columns:1fr}
  .zone-card>img,.media-card img{height:180px}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .footer-bottom{display:grid;gap:6px}
  .contact-steps{grid-template-columns:1fr}
  .drawer-nav{grid-template-columns:1fr 1fr}
}