:root{
  --bg:#E6EBF2;--nav:#F5F7FB;--white:#FFFFFF;--soft:#EEF2F7;--soft2:#DDE4EE;--blue:#289CFF;--text:#243447;--sub:#66788A;--muted:#8A9AAF;--footer:#243447;--footerText:#EAF3FF;--line:rgba(40,156,255,0.16);--shadow:0 14px 36px rgba(56,92,138,0.12);--btn:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
main{padding-top:0}
.site-header{position:sticky;top:0;z-index:9999;background:var(--nav);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,0.10)}
.header-inner{max-width:1240px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding:0 22px}
.logo{flex:0 0 auto;display:flex;align-items:center}.logo img{max-height:52px;width:auto}
.nav-wrap{flex:1 1 auto;min-width:0;display:flex;justify-content:center}.nav{display:flex;align-items:center;gap:20px;white-space:nowrap;flex-wrap:nowrap}.nav a,.drop-link,.more-btn{position:relative;color:#4E5F7A;font-weight:700;font-size:15px;background:none;border:0;cursor:pointer;padding:24px 0}.nav a.active,.drop-link.active,.more-btn:hover,.nav a:hover,.drop-link:hover{color:var(--blue)}.nav a.active:after,.drop-link.active:after{content:"";position:absolute;left:0;right:0;bottom:15px;height:3px;border-radius:999px;background:var(--blue)}
.header-action{flex:0 0 auto;display:flex;align-items:center}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 24px;border-radius:999px;background:var(--btn);color:#fff!important;font-weight:800;box-shadow:0 10px 24px rgba(36,155,255,0.25);transition:.2s ease}.main-btn:hover{background:linear-gradient(180deg,#48D9F7 0%,#1E90F0 100%);transform:translateY(-1px)}
.dropdown,.more-dropdown{position:relative}.dropdown-menu,.more-menu{position:absolute;top:100%;left:0;min-width:180px;background:#fff;border:1px solid rgba(40,156,255,0.12);border-radius:14px;box-shadow:0 18px 38px rgba(56,92,138,0.16);z-index:10000;opacity:0;visibility:hidden;transform:translateY(10px);transition:.18s ease;overflow:hidden}.more-menu{right:0;left:auto}.dropdown:hover .dropdown-menu,.more-dropdown:hover .more-menu,.more-dropdown.show .more-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-menu a,.more-menu a{display:block;padding:12px 16px!important;color:#4E5F7A;white-space:nowrap;font-size:14px}.dropdown-menu a:after,.more-menu a:after{display:none}.dropdown-menu a:hover,.more-menu a:hover{color:var(--blue);background:rgba(40,156,255,0.08)}
.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;align-items:center;justify-content:center;flex-direction:column;gap:5px;flex:0 0 auto}.menu-toggle span{width:22px;height:2px;background:#4E5F7A;border-radius:10px}.drawer-mask{position:fixed;inset:0;background:rgba(20,35,55,.38);z-index:10000;opacity:0;visibility:hidden;transition:.2s ease}.drawer-mask.open{opacity:1;visibility:visible}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:84vw;max-width:320px;background:#fff;z-index:10001;transform:translateX(-104%);transition:.25s ease;box-shadow:18px 0 38px rgba(56,92,138,.18);overflow-y:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-head{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid rgba(40,156,255,.12)}.drawer-logo img{height:46px;width:auto}.drawer-close{border:0;background:#EEF2F7;width:38px;height:38px;border-radius:50%;font-size:26px;color:#4E5F7A;line-height:1}.drawer-nav{display:grid;padding:14px}.drawer-nav a{padding:13px 12px;border-radius:12px;color:#4E5F7A;font-weight:700}.drawer-nav a:hover{background:rgba(40,156,255,.08);color:var(--blue)}.no-scroll{overflow:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 22px}.section{margin:34px auto}.section-card{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:30px}.section-title,h1,h2,h3{color:var(--blue);line-height:1.28;margin:0 0 14px}h1{font-size:clamp(30px,4vw,48px)}h2{font-size:clamp(24px,3vw,34px)}h3{font-size:21px}.lead{font-size:18px;color:var(--sub);max-width:900px}.muted{color:var(--muted)}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:rgba(40,156,255,.10);color:var(--blue);font-weight:800;margin-bottom:14px}.text-link{color:var(--blue);font-weight:800}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card,.zone-card,.info-card,.review-card,.faq-item{background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:0 14px 36px rgba(56,92,138,.10);border-radius:20px;padding:22px}.card p,.zone-card p,.info-card p,.review-card p,.faq-item p{margin:8px 0 0;color:var(--sub)}.tag{display:inline-flex;margin-bottom:10px;color:var(--blue);font-weight:800}.number{width:34px;height:34px;border-radius:50%;background:rgba(40,156,255,.12);color:var(--blue);font-weight:900;display:inline-flex;align-items:center;justify-content:center;margin-bottom:10px}.content-img{border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);object-fit:contain;width:100%;max-height:380px;padding:8px}.image-panel{display:flex;align-items:center;justify-content:center;background:#fff;border-radius:22px;box-shadow:var(--shadow);border:1px solid var(--line);padding:10px;min-height:280px}.image-panel img{object-fit:contain;max-height:360px;width:100%}.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}.page-hero{padding-top:34px}.pill-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.pill-list span{background:#EEF2F7;border:1px solid rgba(40,156,255,.12);border-radius:999px;padding:8px 12px;color:#4E5F7A;font-weight:700}.notice{background:#DDE4EE;border-left:4px solid var(--blue);border-radius:18px;padding:18px 20px;color:#4E5F7A}.split{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}.steps{counter-reset:item;display:grid;gap:14px}.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.step strong{color:var(--blue)}
.banner-slider{max-width:1200px;margin:28px auto 36px;border-radius:20px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,.12);overflow:hidden;position:relative;border:1px solid rgba(40,156,255,.10)}.slides{position:relative;height:clamp(220px,42vw,520px)}.slide{position:absolute;inset:0;opacity:0;transition:opacity .35s ease;background:#fff;display:flex;align-items:center;justify-content:center}.slide.active{opacity:1;z-index:1}.banner-slider img{width:100%;height:100%;object-fit:contain;background:#fff}.slider-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:44px;height:44px;border-radius:999px;border:1px solid rgba(40,156,255,.18);background:rgba(255,255,255,.82);box-shadow:0 8px 20px rgba(56,92,138,.15);cursor:pointer}.slider-btn:before{content:"";display:block;width:12px;height:12px;border-top:3px solid var(--blue);border-left:3px solid var(--blue);margin:auto}.slider-btn.prev{left:16px}.slider-btn.next{right:16px}.slider-btn.prev:before{transform:rotate(-45deg)}.slider-btn.next:before{transform:rotate(135deg)}.slider-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:9px;z-index:5}.slider-dots button{width:10px;height:10px;border:0;border-radius:999px;background:rgba(40,156,255,.28);cursor:pointer;padding:0}.slider-dots button.active{width:26px;background:var(--blue)}.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.product-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.product-strip a{display:block}.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}.feature-list div{background:#EEF2F7;border-radius:16px;padding:14px;border:1px solid rgba(40,156,255,.12)}.review-card cite{display:block;margin-top:12px;color:var(--blue);font-style:normal;font-weight:800}.faq-list{display:grid;gap:14px}.faq-item h3{font-size:18px}.site-footer{margin-top:50px;background:var(--footer);color:var(--footerText)}.footer-inner{max-width:1200px;margin:0 auto;padding:34px 22px;display:grid;grid-template-columns:1.4fr 1fr;gap:24px}.footer-brand img{height:50px;width:auto;margin-bottom:12px}.footer-brand p{color:#D9E8F7;margin:0}.footer-links{display:flex;flex-wrap:wrap;gap:12px;align-content:start;justify-content:flex-end}.footer-links a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08);color:#EAF3FF}.footer-note{border-top:1px solid rgba(234,243,255,.12);max-width:1200px;margin:0 auto;padding:16px 22px;color:#C9D8E8;font-size:14px}
@media(max-width:1100px){.nav{gap:14px}.nav a,.drop-link,.more-btn{font-size:14px}.grid-4,.product-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.nav-wrap{display:none}.menu-toggle{display:flex}.header-inner{gap:12px;min-height:66px;padding:0 14px}.logo{position:absolute;left:50%;transform:translateX(-50%)}.logo img{max-height:46px}.header-action .main-btn{min-height:38px;padding:0 18px}.grid-2,.grid-3,.grid-4,.product-strip,.split,.hero-inner,.footer-inner{grid-template-columns:1fr}.section-card{padding:22px}.footer-links{justify-content:flex-start}.image-panel{min-height:auto}.slides{height:clamp(180px,56vw,360px)}.banner-slider{margin:18px 14px 28px}.container{padding:0 14px}.slider-btn{width:38px;height:38px}.feature-list{grid-template-columns:1fr}}
@media(max-width:520px){h1{font-size:30px}.section-card,.card,.zone-card,.info-card,.review-card,.faq-item{border-radius:18px;padding:18px}.header-action .main-btn{padding:0 14px}.drawer-logo img{height:42px}.slides{height:220px}}