:root{
  --page-bg:#F4FBFF;--nav-bg:#fff;--soft-blue:#E8F7FF;--card-bg:#fff;--primary:#11AEEA;--primary-strong:#1688D8;--deep-blue:#155A9D;--text:#24384A;--muted:#60758A;--border:rgba(17,174,234,.18);--footer:#073A68;--footer-text:#EAF8FF;--gradient:linear-gradient(135deg,#35D7FF 0%,#1688D8 100%);--shadow-sm:0 10px 30px rgba(16,109,168,.10);--shadow-lg:0 20px 60px rgba(15,102,164,.16);--radius-sm:14px;--radius-md:22px;--radius-lg:30px;--container:min(100% - 32px,1360px);--header-height:78px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;overflow-x:hidden;background:var(--page-bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}body.drawer-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea,select{font:inherit}button{cursor:pointer}main{min-height:60vh}.skip-link{position:fixed;left:16px;top:-80px;z-index:9999;padding:10px 16px;border-radius:10px;background:#073A68;color:#fff;transition:top .2s}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:1000;height:var(--header-height);background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(14,104,164,.06);backdrop-filter:blur(14px)}.header-inner{width:var(--container);height:100%;margin:auto;display:flex;align-items:center;gap:clamp(14px,2vw,28px)}.brand-logo{flex:0 0 auto;width:clamp(118px,10vw,156px);min-width:108px}.brand-logo img{width:100%;max-height:52px;object-fit:contain}.desktop-nav{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:clamp(7px,.75vw,16px);overflow:hidden}.desktop-nav a{position:relative;flex:0 0 auto;white-space:nowrap;padding:10px clamp(3px,.25vw,7px);color:#31566F;font-size:clamp(12px,.82vw,15px);font-weight:700;transition:color .2s}.desktop-nav a:after{content:"";position:absolute;left:50%;right:50%;bottom:3px;height:3px;border-radius:999px;background:var(--gradient);transition:left .2s,right .2s}.desktop-nav a:hover,.desktop-nav a.active{color:var(--primary-strong)}.desktop-nav a:hover:after,.desktop-nav a.active:after{left:22%;right:22%}.header-actions{flex:0 0 auto;display:flex;align-items:center;gap:12px}
.main-btn,.secondary-btn,.text-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:800;white-space:nowrap;transition:transform .2s,box-shadow .2s}.main-btn{min-width:94px;min-height:44px;padding:10px 24px;background:var(--gradient);color:#fff;box-shadow:0 10px 24px rgba(22,136,216,.24)}.main-btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(22,136,216,.3)}.secondary-btn{min-height:44px;padding:10px 22px;border:1px solid var(--border);background:#fff;color:var(--deep-blue)}.secondary-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}.text-link{margin-top:8px;color:var(--primary-strong);font-size:14px}.text-link:after{content:"→";transition:transform .2s}.text-link:hover:after{transform:translateX(4px)}
.menu-toggle{display:none;width:46px;height:46px;padding:10px;border:0;border-radius:14px;background:var(--soft-blue)}.menu-toggle span{display:block;height:2px;margin:5px 0;border-radius:999px;background:var(--deep-blue)}.drawer-overlay{position:fixed;inset:0;z-index:1090;opacity:0;background:rgba(4,41,71,.48);transition:opacity .22s}.drawer-overlay.show{opacity:1}.mobile-drawer{position:fixed;top:0;right:0;z-index:1100;width:min(88vw,380px);height:100dvh;padding:22px;overflow-y:auto;background:#fff;box-shadow:-18px 0 50px rgba(4,56,94,.18);transform:translateX(105%);transition:transform .25s}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border)}.drawer-brand{color:var(--primary-strong);font-size:28px;font-weight:900;letter-spacing:2px}.drawer-close{width:42px;height:42px;border:0;border-radius:12px;background:var(--soft-blue);color:var(--deep-blue);font-size:30px;line-height:1}.mobile-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:20px 0}.mobile-nav a{padding:12px 13px;border:1px solid var(--border);border-radius:13px;background:#fff;color:#31566F;font-size:14px;font-weight:700}.mobile-nav a.active{background:var(--soft-blue);color:var(--primary-strong)}.drawer-register{width:100%}
.section,.page-hero,.carousel-wrap{width:var(--container);margin-inline:auto}.section{padding:clamp(58px,7vw,96px) 0}.section.compact{padding-top:26px}.section.soft-band{width:100%;padding-inline:max(16px,calc((100% - 1360px)/2));background:linear-gradient(180deg,rgba(232,247,255,.78),rgba(244,251,255,.6))}.section-head{max-width:780px;margin-bottom:30px}.eyebrow{display:inline-flex;align-items:center;min-height:32px;padding:5px 13px;margin-bottom:12px;border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.78);color:var(--primary-strong);font-size:13px;font-weight:800;letter-spacing:.5px}h1,h2,h3{margin-top:0;color:var(--deep-blue);line-height:1.3}h1{font-size:clamp(32px,5vw,60px);letter-spacing:-1.6px}h2{font-size:clamp(26px,3vw,40px)}h3{font-size:clamp(18px,1.5vw,23px)}p{margin-top:0}.lead{max-width:820px;color:#425F74;font-size:clamp(16px,1.25vw,20px)}.muted{color:var(--muted)}
.page-hero{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);align-items:center;gap:clamp(30px,5vw,70px);min-height:520px;padding:clamp(56px,8vw,100px) 0}.page-hero:before{content:"";position:absolute;z-index:-1;width:430px;height:430px;right:-140px;top:18px;border-radius:50%;background:radial-gradient(circle,rgba(53,215,255,.2),rgba(22,136,216,0))}.hero-copy .lead{margin-bottom:28px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.hero-media{padding:16px;border:1px solid var(--border);border-radius:var(--radius-lg);background:rgba(255,255,255,.82);box-shadow:var(--shadow-lg)}.hero-media img{width:100%;max-height:460px;object-fit:contain;border-radius:calc(var(--radius-lg) - 10px);background:var(--soft-blue)}
.carousel-wrap{padding:clamp(22px,4vw,46px) 0 0}.hero-carousel{position:relative;overflow:hidden;min-height:clamp(240px,39vw,540px);border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(135deg,#E8F7FF,#fff);box-shadow:var(--shadow-lg)}.carousel-track{position:relative;min-height:inherit}.carousel-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .55s}.carousel-slide.active{opacity:1;pointer-events:auto}.carousel-slide img{width:100%;height:100%;min-height:inherit;object-fit:contain;background:linear-gradient(135deg,#E8F7FF,#fff)}.carousel-arrow{position:absolute;top:50%;z-index:3;width:clamp(40px,5vw,56px);height:clamp(40px,5vw,56px);border:1px solid rgba(255,255,255,.85);border-radius:50%;background:rgba(7,58,104,.55);color:#fff;font-size:clamp(22px,3vw,34px);line-height:1;transform:translateY(-50%);backdrop-filter:blur(10px)}.carousel-arrow:hover{background:rgba(7,58,104,.8)}.carousel-arrow.prev{left:clamp(10px,2vw,24px)}.carousel-arrow.next{right:clamp(10px,2vw,24px)}.carousel-dots{position:absolute;left:50%;bottom:18px;z-index:3;display:flex;gap:9px;transform:translateX(-50%)}.carousel-dot{width:10px;height:10px;padding:0;border:0;border-radius:999px;background:rgba(255,255,255,.72);box-shadow:0 0 0 1px rgba(7,58,104,.14);transition:width .2s,background .2s}.carousel-dot.active{width:30px;background:var(--primary)}
.grid-2,.grid-3,.grid-4,.grid-5{display:grid;gap:clamp(16px,2vw,26px)}.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))}.grid-5{grid-template-columns:repeat(5,minmax(0,1fr))}.card{position:relative;padding:clamp(20px,2.3vw,30px);overflow:hidden;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--card-bg);box-shadow:var(--shadow-sm)}.card:before{content:"";position:absolute;inset:0 auto auto 0;width:100%;height:4px;background:var(--gradient);opacity:0;transition:opacity .2s}.card:hover:before{opacity:1}.card p:last-child{margin-bottom:0}.number-badge{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;margin-bottom:16px;border-radius:14px;background:var(--soft-blue);color:var(--primary-strong);font-weight:900}.image-card{padding:0}.image-card img{width:100%;aspect-ratio:16/10;object-fit:contain;background:var(--soft-blue);border-bottom:1px solid var(--border)}.image-card .card-body{padding:clamp(20px,2.4vw,30px)}.feature-split{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);align-items:center;gap:clamp(28px,5vw,70px)}.feature-split.reverse{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr)}.feature-split.reverse .feature-media{order:2}.feature-media{padding:14px;border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-lg)}.feature-media img{width:100%;max-height:500px;object-fit:contain;border-radius:calc(var(--radius-lg) - 8px);background:var(--soft-blue)}.list-clean{margin:20px 0 0;padding:0;list-style:none}.list-clean li{position:relative;padding:11px 0 11px 30px;border-bottom:1px dashed rgba(17,174,234,.18)}.list-clean li:before{content:"✓";position:absolute;left:0;top:10px;color:var(--primary-strong);font-weight:900}.notice{padding:clamp(22px,3vw,34px);border:1px solid rgba(17,174,234,.24);border-radius:var(--radius-md);background:linear-gradient(135deg,rgba(232,247,255,.95),rgba(255,255,255,.92))}.notice strong{color:var(--deep-blue)}.review-card blockquote{margin:0 0 18px;color:#36566F}.review-card footer{color:var(--primary-strong);font-weight:800}.stats-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding:18px;border:1px solid var(--border);border-radius:var(--radius-md);background:#fff;box-shadow:var(--shadow-sm)}.stat{padding:18px;border-radius:16px;background:var(--soft-blue);text-align:center}.stat strong{display:block;color:var(--primary-strong);font-size:26px}.stat span{color:var(--muted);font-size:14px}
.faq-list{display:grid;gap:14px}.faq-item{overflow:hidden;border:1px solid var(--border);border-radius:16px;background:#fff;box-shadow:0 8px 22px rgba(16,109,168,.06)}.faq-item summary{position:relative;padding:20px 54px 20px 22px;color:var(--deep-blue);font-weight:800;cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:22px;top:50%;color:var(--primary-strong);font-size:24px;transform:translateY(-50%)}.faq-item[open] summary:after{content:"−"}.faq-item p{padding:0 22px 22px;margin:0;color:var(--muted)}.contact-form{display:grid;gap:14px}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.contact-form label{color:var(--deep-blue);font-weight:800}.contact-form input,.contact-form textarea,.contact-form select{width:100%;margin-top:7px;padding:13px 15px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text);outline:none}.contact-form textarea{min-height:140px;resize:vertical}.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(17,174,234,.1)}
.site-footer{margin-top:50px;padding:64px 0 24px;background:var(--footer);color:var(--footer-text)}.footer-grid,.footer-bottom{width:var(--container);margin-inline:auto}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:clamp(24px,4vw,54px)}.site-footer h2{color:#fff;font-size:18px}.site-footer p{color:rgba(234,248,255,.78)}.footer-wordmark{display:inline-block;margin-bottom:16px;color:#fff;font-size:30px;font-weight:900;letter-spacing:3px}.footer-links{display:grid;gap:10px}.footer-links a,.footer-bottom a{color:rgba(234,248,255,.82)}.footer-links a:hover,.footer-bottom a:hover{color:#fff}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:44px;padding-top:22px;border-top:1px solid rgba(234,248,255,.16)}.footer-bottom p{margin:0}.footer-bottom div{display:flex;gap:18px}.back-top{position:fixed;right:20px;bottom:20px;z-index:900;width:46px;height:46px;border:0;border-radius:50%;opacity:0;pointer-events:none;background:var(--gradient);color:#fff;box-shadow:0 12px 28px rgba(22,136,216,.28);transform:translateY(14px);transition:opacity .2s,transform .2s}.back-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}
@media(max-width:1180px){.desktop-nav{display:none}.header-inner{justify-content:space-between}.menu-toggle{display:block}}
@media(max-width:980px){.page-hero,.feature-split,.feature-split.reverse{grid-template-columns:1fr}.feature-split.reverse .feature-media{order:initial}.page-hero{min-height:auto;padding-top:54px}.grid-4,.grid-5{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){:root{--container:min(100% - 24px,1360px);--header-height:70px}.brand-logo{width:112px}.main-btn{min-width:82px;min-height:42px;padding:9px 18px}.header-actions{gap:8px}.menu-toggle{width:42px;height:42px}.carousel-wrap{padding-top:16px}.hero-carousel{min-height:clamp(220px,62vw,390px);border-radius:20px}.carousel-dots{bottom:12px}.grid-2,.grid-3,.grid-4,.grid-5{grid-template-columns:1fr}.stats-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.form-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;align-items:flex-start}.section{padding:52px 0}.section.soft-band{padding-inline:12px}}
@media(max-width:430px){.brand-logo{width:102px;min-width:94px}.header-actions .main-btn{min-width:72px;padding-inline:14px}.mobile-nav{grid-template-columns:1fr}.stats-strip{grid-template-columns:1fr}.carousel-arrow{width:38px;height:38px;font-size:22px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}