:root{
  --bg:#F4FBFF;--surface:#FFFFFF;--soft:#E8F7FF;--primary:#10AEEA;--primary-2:#1688D8;
  --deep:#155A9D;--text:#24384A;--muted:#60758A;--border:rgba(16,174,234,.18);
  --shadow:0 16px 40px rgba(21,90,157,.12);--shadow-soft:0 10px 28px rgba(21,90,157,.09);
  --radius:24px;--radius-sm:16px;--header-h:78px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.75;overflow-x:hidden}
body.drawer-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
.container{width:min(100% - 32px,1200px);margin-inline:auto}
.section{padding:clamp(56px,7vw,96px) 0}
.section-soft{background:linear-gradient(180deg,rgba(232,247,255,.78),rgba(244,251,255,.35))}
.skip-link{position:fixed;top:8px;left:8px;z-index:9999;transform:translateY(-160%);background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}
.skip-link:focus{transform:translateY(0)}
.site-header{position:fixed;inset:0 0 auto;z-index:1000;height:var(--header-h);background:rgba(255,255,255,.95);border-bottom:1px solid var(--border);backdrop-filter:blur(16px)}
.header-inner{width:min(100% - 32px,1360px);height:100%;margin-inline:auto;display:flex;align-items:center;gap:clamp(14px,2vw,28px)}
.site-logo{flex:0 0 auto;width:clamp(96px,9vw,128px)}
.site-logo img,.drawer-logo img,.footer-brand img{width:100%;max-height:42px;object-fit:contain}
.desktop-nav{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:clamp(7px,1vw,16px);overflow:hidden}
.desktop-nav a{white-space:nowrap;font-size:clamp(12px,.88vw,14px);font-weight:650;color:#3d607a;padding:8px 0;position:relative}
.desktop-nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;border-radius:999px;background:var(--primary);transition:.2s}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--primary-2)}
.desktop-nav a:hover::after,.desktop-nav a.active::after{left:0;right:0}
.header-actions{flex:0 0 auto;display:flex;align-items:center;gap:10px}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border:0;border-radius:999px;background:linear-gradient(135deg,#35D7FF 0%,#1688D8 100%);color:#fff;font-weight:750;box-shadow:0 9px 22px rgba(22,136,216,.24);transition:transform .2s,box-shadow .2s}
.main-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(22,136,216,.3)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:14px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.menu-toggle span{width:20px;height:2px;border-radius:999px;background:var(--primary-2)}
main{padding-top:var(--header-h)}
.drawer-backdrop{position:fixed;inset:0;z-index:1090;background:rgba(7,58,104,.32);opacity:0;transition:.22s}
.drawer-backdrop.show{opacity:1}
.mobile-drawer{position:fixed;z-index:1100;top:0;right:0;width:min(88vw,390px);height:100dvh;background:#fff;box-shadow:-20px 0 60px rgba(7,58,104,.2);transform:translateX(105%);transition:transform .25s ease;display:flex;flex-direction:column;padding:20px}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--border)}
.drawer-logo{width:116px}
.drawer-close{width:42px;height:42px;border:1px solid var(--border);border-radius:50%;background:#fff;color:var(--deep);font-size:28px;line-height:1;cursor:pointer}
.mobile-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;overflow:auto;padding:18px 0;flex:1}
.mobile-nav a{padding:11px 12px;border-radius:12px;background:var(--bg);font-weight:650;color:#355b75}
.mobile-nav a.active{background:var(--soft);color:var(--primary-2)}
.drawer-register{width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--primary-2);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--primary-2))}
h1,h2,h3{margin:0;color:#153f60;line-height:1.3}
h1{font-size:clamp(36px,5vw,64px);letter-spacing:-.04em}
h2{font-size:clamp(28px,3.5vw,42px);letter-spacing:-.025em}
h3{font-size:20px}
p{margin:0;color:var(--muted)}
.section-heading{max-width:760px;margin-bottom:32px}
.section-heading p{margin-top:12px;font-size:17px}
.text-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--primary-2);font-weight:750}
.text-link::after{content:"→";transition:transform .2s}
.text-link:hover::after{transform:translateX(4px)}
.hero-actions{display:flex;align-items:center;gap:18px;margin-top:28px;flex-wrap:wrap}
.page-hero{padding-top:clamp(58px,8vw,110px);background:radial-gradient(circle at 84% 14%,rgba(53,215,255,.25),transparent 31%),linear-gradient(180deg,#fff,var(--bg))}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.9fr);align-items:center;gap:clamp(34px,6vw,72px)}
.page-hero-copy p{font-size:clamp(17px,2vw,20px);margin-top:20px;max-width:700px}
.page-hero-media,.media-figure{margin:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:10px;box-shadow:var(--shadow);overflow:hidden}
.page-hero-media img,.media-figure img{width:100%;max-height:500px;object-fit:contain;border-radius:calc(var(--radius) - 8px)}
.page-hero-panel{display:grid;grid-template-columns:auto 1fr;gap:12px 18px;padding:30px;border:1px solid var(--border);border-radius:var(--radius);background:linear-gradient(145deg,#fff,var(--soft));box-shadow:var(--shadow)}
.page-hero-panel strong{color:var(--primary-2)}
.page-hero-panel span{color:var(--muted)}
.card-grid{display:grid;gap:20px}.card-grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.card-grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.info-card{min-width:0;padding:26px;border:1px solid var(--border);border-radius:var(--radius-sm);background:rgba(255,255,255,.9);box-shadow:var(--shadow-soft);transition:transform .2s,border-color .2s}
.info-card:hover{transform:translateY(-4px);border-color:rgba(16,174,234,.38)}
.info-card h3{margin:8px 0 10px}.info-card p{font-size:15px}.card-tag{display:inline-flex;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--primary-2);font-size:12px;font-weight:750}
.media-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.9fr);align-items:center;gap:clamp(34px,6vw,74px)}
.media-section.reverse .media-copy{order:2}.media-section.reverse .media-figure{order:1}
.media-copy p{margin-top:16px;font-size:16px}.media-copy .text-link{margin-top:20px}
.step-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:steps}
.step-list li{display:flex;gap:16px;padding:24px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-soft)}
.step-list li>span{flex:0 0 40px;width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#35D7FF,#1688D8);color:#fff;font-weight:800}
.step-list h3{font-size:18px;margin:4px 0 8px}.step-list p{font-size:14px}
.feedback-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.feedback-card{margin:0;padding:26px;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-soft)}
.feedback-card p{color:#36566c}.feedback-card footer{margin-top:18px;color:var(--primary-2);font-weight:750}
.notice-card{padding:clamp(28px,5vw,54px);border-radius:var(--radius);background:linear-gradient(135deg,#073A68,#155A9D);box-shadow:0 22px 54px rgba(7,58,104,.22)}
.notice-card h2,.notice-card p,.notice-card .eyebrow{color:#fff}.notice-card p{margin-top:14px;opacity:.88}.notice-card .eyebrow::before{background:#35D7FF}.notice-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.notice-links a{padding:9px 14px;border-radius:999px;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22)}
.home-carousel{padding:28px 0 0;background:linear-gradient(180deg,#fff,var(--bg))}
.carousel{position:relative;overflow:hidden;border-radius:clamp(18px,3vw,32px);background:var(--soft);box-shadow:var(--shadow);border:1px solid var(--border);min-height:clamp(220px,38vw,520px)}
.carousel-track{display:flex;height:100%;transition:transform .55s ease}
.carousel-slide{min-width:100%;display:flex;align-items:center;justify-content:center;background:var(--soft)}
.carousel-slide img{width:100%;height:clamp(220px,38vw,520px);object-fit:contain}
.carousel-btn{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border:1px solid rgba(255,255,255,.65);border-radius:50%;background:rgba(7,58,104,.55);color:#fff;font-size:28px;line-height:1;cursor:pointer;backdrop-filter:blur(8px)}
.carousel-btn.prev{left:16px}.carousel-btn.next{right:16px}
.carousel-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(7,58,104,.28);backdrop-filter:blur(8px)}
.carousel-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.55);cursor:pointer}.carousel-dot.active{width:24px;border-radius:99px;background:#fff}
.intro-band{padding:clamp(34px,5vw,58px);border:1px solid var(--border);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-soft);display:grid;grid-template-columns:1.4fr .6fr;gap:30px;align-items:center}
.intro-band p{margin-top:14px;font-size:17px}.intro-actions{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.quick-card{padding:22px;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-soft)}.quick-card h3{font-size:18px}.quick-card p{font-size:14px;margin-top:8px}
.product-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.product-tile{overflow:hidden;border-radius:var(--radius);background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-soft)}.product-tile img{width:100%;height:220px;object-fit:contain;background:var(--soft)}.product-tile-copy{padding:22px}.product-tile-copy p{margin-top:8px}
.faq-list{display:grid;gap:14px}.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;box-shadow:var(--shadow-soft);overflow:hidden}.faq-item summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:750;color:#204e70;display:flex;justify-content:space-between;gap:20px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";color:var(--primary-2);font-size:22px}.faq-item[open] summary::after{content:"−"}.faq-item p{padding:0 24px 22px}
.site-footer{background:#073A68;color:#EAF8FF;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:36px}.footer-brand img{width:130px;filter:brightness(0) invert(1)}.site-footer p,.site-footer a{color:#cfefff}.site-footer h2{font-size:16px;color:#fff;margin-bottom:14px}.site-footer a{display:block;margin:8px 0;font-size:14px}.footer-brand p{margin-top:18px;max-width:430px}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:20px}.footer-bottom p{font-size:13px}
@media (max-width:1180px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-inner{gap:14px}.site-logo{margin-right:auto}}
@media (max-width:900px){.page-hero-grid,.media-section,.intro-band{grid-template-columns:1fr}.media-section.reverse .media-copy,.media-section.reverse .media-figure{order:initial}.card-grid.cols-3,.step-list,.feedback-grid,.product-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid.cols-4,.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.intro-actions{justify-content:flex-start}}
@media (max-width:640px){:root{--header-h:70px}.container,.header-inner{width:min(100% - 24px,1200px)}.header-register{min-height:40px;padding:0 18px}.site-logo{width:102px}.menu-toggle{width:40px;height:40px}.section{padding:52px 0}.page-hero{padding-top:52px}.page-hero-copy p{font-size:16px}.page-hero-panel{grid-template-columns:1fr;padding:22px}.card-grid.cols-2,.card-grid.cols-3,.card-grid.cols-4,.step-list,.feedback-grid,.quick-grid,.product-strip{grid-template-columns:1fr}.carousel-btn{width:40px;height:40px}.carousel-btn.prev{left:10px}.carousel-btn.next{right:10px}.carousel-dots{bottom:10px}.mobile-nav{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto}.hero-actions{gap:12px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}