*{box-sizing:border-box}
:root{--bg:#E6EBF2;--soft:#F5F7FB;--white:#FFF;--muted-bg:#EEF2F7;--line:#DDE4EE;--primary:#289CFF;--primary-deep:#157FE3;--text:#243447;--muted:#66788A;--footer:#243447;--shadow:0 14px 36px rgba(56,92,138,.10);--shadow-strong:0 18px 40px rgba(56,92,138,.14);--gradient:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%)}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden;padding-top:76px}
body.drawer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button,a{-webkit-tap-highlight-color:transparent}
button{font:inherit}
.skip-link{position:fixed;left:14px;top:-80px;z-index:20000;padding:10px 14px;border-radius:10px;background:var(--text);color:#fff}
.skip-link:focus{top:10px}
.site-header{position:fixed;inset:0 0 auto 0;z-index:500;background:rgba(245,247,251,.94);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,.10);border-bottom:1px solid rgba(40,156,255,.10)}
.header-inner{width:min(1420px,calc(100% - 36px));min-height:76px;margin:0 auto;display:grid;grid-template-columns:220px 1fr 120px;align-items:center;gap:24px}
.logo,.drawer-logo{display:inline-flex;align-items:center;min-width:0}
.logo img{max-height:52px;width:auto;display:block}
.nav-core{display:flex;align-items:center;justify-content:center;gap:clamp(18px,2.3vw,34px);white-space:nowrap;flex-wrap:nowrap}
.nav-core a{color:#4E5F7A;position:relative;font-weight:700;padding:10px 8px;border-radius:10px;transition:.2s ease}
.nav-core a:hover,.nav-core a.active{color:var(--primary);background:rgba(40,156,255,.07)}
.nav-core a.active::after{content:"";position:absolute;left:50%;bottom:-8px;width:28px;height:3px;border-radius:999px;background:var(--primary);transform:translateX(-50%)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 24px;background:var(--gradient);color:#fff;border-radius:999px;border:0;box-shadow:0 10px 24px rgba(36,155,255,.24);font-weight:800;transition:transform .2s ease,box-shadow .2s ease}
.main-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(36,155,255,.30)}
.header-register{justify-self:end;min-width:96px;white-space:nowrap}
.mobile-menu-btn{display:none;width:42px;height:42px;border:0;border-radius:12px;background:#fff;box-shadow:0 8px 18px rgba(56,92,138,.10);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.mobile-menu-btn span{width:20px;height:2px;border-radius:99px;background:var(--text)}
.page-shell{width:min(1480px,calc(100% - 32px));margin:0 auto;display:grid;grid-template-columns:210px minmax(0,1fr);gap:26px;align-items:start}
.side-channel{position:sticky;top:102px;margin-top:28px;max-height:calc(100vh - 128px);overflow:auto;padding:14px;background:rgba(255,255,255,.92);border:1px solid rgba(40,156,255,.14);border-radius:18px;box-shadow:var(--shadow)}
.side-title{margin:2px 8px 10px;font-size:14px;font-weight:800;color:var(--text)}
.side-channel nav{display:grid;gap:3px}
.side-channel a{color:var(--muted);border-radius:12px;padding:8px 10px;font-size:14px;font-weight:650;transition:.2s ease}
.side-channel a:hover,.side-channel a.active{color:var(--primary);background:rgba(40,156,255,.10)}
.main-content{min-width:0;padding:28px 0 60px}
.floating-service{position:fixed;right:18px;top:42%;transform:translateY(-50%);z-index:60;display:grid;gap:8px;width:64px}
.floating-service a,.floating-service button{min-height:48px;display:flex;align-items:center;justify-content:center;background:#fff;color:var(--primary);border:1px solid rgba(40,156,255,.16);border-radius:14px;box-shadow:0 14px 30px rgba(56,92,138,.12);font-size:13px;font-weight:800;cursor:pointer}
.floating-service a.register-link{background:var(--gradient);color:#fff}
.mobile-drawer,.drawer-overlay,.mobile-bottom-nav{display:none}
.banner-slider{width:100%;margin:0 auto 34px;border-radius:24px;background:#fff;box-shadow:var(--shadow-strong);overflow:hidden;position:relative;z-index:1;height:clamp(300px,30vw,390px)}
.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;display:block}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border:none;border-radius:999px;background:rgba(255,255,255,.90);color:var(--primary);box-shadow:0 8px 20px rgba(56,92,138,.16);font-size:31px;line-height:1;cursor:pointer}
.slider-arrow.prev{left:16px}.slider-arrow.next{right:16px}
.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:none;background:rgba(40,156,255,.26);cursor:pointer}
.slider-dots button.active{background:var(--primary)}
.section{margin:0 0 28px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}
.section-kicker{margin:0 0 4px;color:var(--primary-deep);font-size:13px;font-weight:800;letter-spacing:.08em}
h1,h2,h3,.section-title{color:var(--primary);line-height:1.35}
h1{margin:0 0 14px;font-size:clamp(30px,4.2vw,52px)}
h2{margin:0 0 12px;font-size:clamp(23px,2.8vw,34px)}
h3{margin:0 0 9px;font-size:20px}
p{margin:0 0 14px}
.lead{color:#41546A;font-size:clamp(16px,1.8vw,19px)}
.muted{color:var(--muted)}
.card,.zone-card,.info-card,.review-card,.content-panel,.faq-item,.notice-box{background:rgba(255,255,255,.92);border:1px solid rgba(40,156,255,.16);box-shadow:var(--shadow);border-radius:20px}
.hero-panel{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(280px,.88fr);gap:26px;align-items:center;padding:clamp(24px,4vw,44px);margin-bottom:28px;background:radial-gradient(circle at 12% 20%,rgba(50,209,246,.15),transparent 35%),radial-gradient(circle at 90% 80%,rgba(40,156,255,.13),transparent 38%),rgba(255,255,255,.92);border:1px solid rgba(40,156,255,.14);border-radius:24px;box-shadow:var(--shadow)}
.hero-copy p:last-of-type{margin-bottom:20px}
.hero-media{min-height:250px;display:flex;align-items:center;justify-content:center;padding:16px;border-radius:20px;background:linear-gradient(145deg,#F8FBFF,#EAF3FC);overflow:hidden}
.hero-media img,.content-img{width:100%;max-height:300px;object-fit:contain;display:block}
.brand-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,420px);gap:24px;align-items:center;padding:28px}
.brand-intro .content-img{max-height:280px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.text-link{color:var(--primary-deep);font-weight:800}
.text-link:hover{text-decoration:underline}
.quick-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.quick-card{min-height:132px;display:flex;flex-direction:column;padding:18px;background:rgba(255,255,255,.90);border:1px solid rgba(40,156,255,.13);border-radius:18px;box-shadow:0 10px 26px rgba(56,92,138,.08);transition:transform .2s ease,border-color .2s ease}
.quick-card:hover{transform:translateY(-3px);border-color:rgba(40,156,255,.34)}
.quick-card strong{color:var(--primary);font-size:17px}
.quick-card span{margin:7px 0 auto;color:var(--muted);font-size:13px;line-height:1.55}
.quick-card em{margin-top:10px;color:var(--primary-deep);font-style:normal;font-weight:800;font-size:13px}
.grid-2,.grid-3,.grid-4,.product-matrix,.review-grid{display:grid;gap:18px}
.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))}
.product-matrix{grid-template-columns:repeat(3,minmax(0,1fr))}
.review-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.card,.info-card,.review-card,.zone-card{padding:22px}
.card p,.info-card p,.review-card p,.zone-card p{color:#526579}
.card .tag,.zone-card .tag{display:inline-flex;margin-bottom:12px;padding:5px 10px;border-radius:99px;background:rgba(40,156,255,.10);color:var(--primary-deep);font-size:12px;font-weight:800}
.zone-card img{width:100%;height:150px;object-fit:contain;display:block;margin-bottom:14px;border-radius:14px;background:#F7FAFD}
.topic-panel{display:grid;grid-template-columns:minmax(280px,.9fr) minmax(0,1.1fr);gap:24px;align-items:center;padding:28px}
.topic-panel.reverse{grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr)}
.topic-panel img{width:100%;max-height:280px;object-fit:contain;display:block;border-radius:18px;background:#F7FAFD}
.list-check{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:9px}
.list-check li{position:relative;padding-left:24px;color:#536579}
.list-check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--primary);font-weight:900}
.steps{counter-reset:ky-step;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.step{counter-increment:ky-step;position:relative;padding:22px 20px 20px;background:rgba(255,255,255,.92);border:1px solid rgba(40,156,255,.14);border-radius:18px;box-shadow:0 12px 28px rgba(56,92,138,.08)}
.step::before{content:counter(ky-step);display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;margin-bottom:12px;border-radius:50%;background:var(--gradient);color:#fff;font-weight:900}
.review-card{position:relative}
.review-card::before{content:"“";position:absolute;right:18px;top:0;color:rgba(40,156,255,.18);font-size:70px;line-height:1;font-family:Georgia,serif}
.review-card strong{display:block;margin-top:10px;color:var(--text)}
.faq-list{display:grid;gap:12px}
.faq-item{padding:20px 22px}
.faq-item h3{font-size:18px}
.notice-box{padding:22px;border-left:4px solid var(--primary);background:linear-gradient(135deg,rgba(255,255,255,.95),rgba(238,245,252,.95))}
.notice-box strong{color:var(--primary-deep)}
.link-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.link-list a{padding:16px;border-radius:14px;background:#fff;border:1px solid rgba(40,156,255,.13);color:var(--primary-deep);font-weight:800;text-align:center}
.site-footer{background:var(--footer);color:#EAF3FF;padding:44px 0 20px}
.footer-inner{width:min(1240px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:minmax(280px,1.2fr) minmax(0,1.8fr);gap:48px}
.footer-brand img{max-height:52px;width:auto;display:block;margin-bottom:16px}
.footer-brand p{max-width:520px;color:#C9D8E7}
.footer-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.footer-links h2{color:#fff;font-size:16px;margin-bottom:12px}
.footer-links a{display:block;color:#C9D8E7;margin:7px 0;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-notice{width:min(1240px,calc(100% - 40px));margin:28px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#AFC2D5;font-size:13px}
.footer-notice p:last-child{margin-bottom:0}
@media(max-width:1240px){.page-shell{grid-template-columns:1fr;width:min(1120px,calc(100% - 32px))}.side-channel,.floating-service{display:none}.header-inner{grid-template-columns:190px 1fr 100px}.quick-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:900px){
body{padding-top:66px;padding-bottom:74px}.site-header{min-height:66px}.header-inner{width:min(100% - 20px,760px);min-height:66px;grid-template-columns:52px 1fr 84px;gap:10px}.mobile-menu-btn{display:flex}.logo{justify-self:center}.logo img{max-height:44px;max-width:min(150px,42vw)}.nav-core{display:none}.header-register{min-width:76px;padding:9px 16px;min-height:40px}
.drawer-overlay{display:block;position:fixed;inset:0;z-index:9998;background:rgba(16,34,54,.42);opacity:0;visibility:hidden;transition:.25s ease}
.mobile-drawer{display:flex;flex-direction:column;position:fixed;left:0;top:0;bottom:0;z-index:10000;width:min(84vw,320px);padding:16px;background:#fff;box-shadow:18px 0 44px rgba(27,56,86,.24);transform:translateX(-104%);transition:transform .26s ease;overflow-y:auto}
.drawer-open .drawer-overlay{opacity:1;visibility:visible}.drawer-open .mobile-drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px solid #E8EEF5}.drawer-logo img{max-height:44px;width:auto}.drawer-close{width:42px;height:42px;border:0;border-radius:12px;background:#EEF5FC;color:var(--text);font-size:28px;line-height:1}
.drawer-nav{display:grid;gap:4px;padding:14px 0}.drawer-nav a{padding:11px 12px;border-radius:12px;color:var(--muted);font-weight:700}.drawer-nav a.active,.drawer-nav a:hover{background:rgba(40,156,255,.10);color:var(--primary)}.drawer-register{width:100%;margin-top:auto}
.mobile-bottom-nav{position:fixed;left:10px;right:10px;bottom:8px;z-index:490;min-height:58px;display:grid;grid-template-columns:repeat(4,1fr);gap:5px;padding:6px;border-radius:18px;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 12px 30px rgba(43,75,108,.18);border:1px solid rgba(40,156,255,.12)}
.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;border-radius:13px;color:var(--muted);font-size:13px;font-weight:800}.mobile-bottom-nav a.active{color:#fff;background:var(--gradient)}
.main-content{padding-top:18px}.banner-slider{height:clamp(210px,43vw,300px);border-radius:20px;margin-bottom:26px}.hero-panel,.brand-intro,.topic-panel,.topic-panel.reverse{grid-template-columns:1fr}.hero-media{min-height:210px}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3,.grid-4,.product-matrix,.review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-inner{grid-template-columns:1fr;gap:28px}}
@media(max-width:620px){
.page-shell{width:min(100% - 20px,520px)}.main-content{padding-bottom:28px}.banner-slider{height:clamp(170px,53vw,230px);border-radius:16px}.slider-arrow{width:38px;height:38px;font-size:26px}.slider-arrow.prev{left:8px}.slider-arrow.next{right:8px}
.hero-panel,.brand-intro,.topic-panel,.card,.info-card,.review-card,.zone-card,.faq-item,.notice-box{padding:18px;border-radius:17px}.hero-media{min-height:170px;padding:8px}.quick-grid,.grid-2,.grid-3,.grid-4,.product-matrix,.review-grid,.steps,.link-list{grid-template-columns:1fr}.quick-card{min-height:112px}.section-head{align-items:flex-start;flex-direction:column;gap:8px}.footer-links{grid-template-columns:1fr 1fr}.footer-inner,.footer-notice{width:min(100% - 28px,520px)}
}