:root{--blue:#3A8FE8;--text:#243447;--muted:#66788A;--soft:#8A9AAF;--line:rgba(58,143,232,.16);--white:#fff;--bg:#EEF7FF;--shadow:0 14px 36px rgba(62,120,180,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei",system-ui,sans-serif;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1200px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.78);backdrop-filter:blur(12px);box-shadow:0 8px 28px rgba(58,143,232,.10)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}.logo{flex:0 0 auto}.logo img{max-height:52px;width:auto}.nav-core{flex:1 1 auto;display:flex;justify-content:center;gap:22px;white-space:nowrap;flex-wrap:nowrap}.nav-core a{color:#5F6F95;font-weight:700;padding:9px 4px}.nav-core a:hover,.nav-core a.active{color:var(--blue)}.header-action{flex:0 0 auto;display:flex;align-items:center;gap:12px}.all-menu-btn{border:1px solid rgba(58,143,232,.18);background:rgba(255,255,255,.74);color:var(--blue);border-radius:999px;padding:10px 16px;font-weight:700;cursor:pointer}.main-btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#67C5FF 0%,#3698F2 45%,#1F79D8 100%);color:#fff;border-radius:999px;padding:11px 22px;font-weight:800;box-shadow:0 10px 24px rgba(31,121,216,.24)}.register-btn{white-space:nowrap}.mobile-menu-btn{display:none;border:0;background:transparent;padding:10px;z-index:4}.mobile-menu-btn span{display:block;width:24px;height:2px;background:var(--blue);margin:5px 0}.mega-overlay,.drawer-overlay{position:fixed;inset:0;background:rgba(24,50,78,.28);z-index:9998}.mega-panel{position:fixed;top:84px;left:50%;transform:translateX(-50%);width:min(1120px,calc(100% - 32px));background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:24px;box-shadow:0 24px 60px rgba(62,120,180,.16);z-index:10000;padding:24px}.mega-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;color:var(--blue)}.mega-close,.drawer-close{border:0;background:#E8F4FF;color:var(--blue);width:38px;height:38px;border-radius:50%;font-size:24px;cursor:pointer}.mega-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.mega-grid section h3{font-size:16px;margin:0 0 10px}.mega-grid section a{display:block;padding:12px;border-radius:14px}.mega-grid section a:hover{background:#F6FBFF}.mega-grid b{display:block;color:var(--blue)}.mega-grid span{display:block;color:var(--soft);font-size:13px}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:10001;transform:translateX(-102%);transition:.28s ease;overflow:auto}.mobile-drawer.open{transform:none}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--line)}.drawer-head img{max-height:40px;width:auto}.mobile-drawer nav{padding:10px 16px 28px}.mobile-drawer nav a{display:block;padding:12px;border-bottom:1px solid rgba(58,143,232,.08);color:#4d6480}.menu-open{overflow:hidden}.banner-slider{max-width:1200px;margin:28px auto 36px;border-radius:22px;background:#fff;box-shadow:0 18px 40px rgba(62,120,180,.12);overflow:hidden;position:relative}.slides{position:relative}.slide{display:none}.slide.active{display:block}.banner-slider img{width:100%;height:auto;object-fit:contain;background:#fff}.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.82);color:var(--blue);font-size:28px;cursor:pointer}.banner-arrow.prev{left:16px}.banner-arrow.next{right:16px}.banner-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px}.banner-dots button{width:9px;height:9px;border:0;border-radius:50%;background:rgba(255,255,255,.6);padding:0}.banner-dots button.active{width:24px;border-radius:99px;background:#fff}.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}.section{padding:54px 0}.section.alt{background:#F6FBFF}.eyebrow{color:var(--blue);font-weight:800;letter-spacing:.08em}.section-title,h1,h2,h3{color:var(--blue)}h1{font-size:clamp(32px,5vw,58px);line-height:1.2;margin:.2em 0}.lead{font-size:18px;color:var(--muted);max-width:760px}.hero-simple{padding:72px 0 46px}.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.card,.zone-card,.info-card,.review-card,.faq-item{background:rgba(255,255,255,.94);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:24px}.card h3,.zone-card h3{margin-top:0}.content-img,.zone-card img,.app-section img{max-width:100%;height:auto;border-radius:20px}.image-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:16px;box-shadow:var(--shadow)}.quick-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.quick-links a{padding:9px 14px;background:#E8F4FF;color:var(--blue);border-radius:999px;font-weight:700}.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.stat-strip article{background:linear-gradient(135deg,#fff,#E8F4FF);padding:28px;border-radius:22px;border:1px solid var(--line)}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.product-grid img{width:100%;height:auto;border-radius:16px;margin-bottom:16px}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.notice{background:#DDEEFF;border-left:4px solid var(--blue);padding:20px 22px;border-radius:14px}.faq-list{display:grid;gap:14px}.faq-item h3{margin:0 0 8px}.page-content{padding-bottom:60px}.content-block{margin:0 0 24px}.content-block ul{padding-left:20px}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.ghost-btn{display:inline-flex;padding:10px 18px;border-radius:999px;border:1px solid var(--line);color:var(--blue);font-weight:800;background:#fff}footer{background:#243447;color:#EAF3FF;padding:46px 0 0}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}.footer-brand img{max-height:48px;width:auto;margin-bottom:18px}.footer-grid h3{color:#fff}.footer-grid a{display:block;color:#d6e8f7;margin:7px 0}.footer-note{margin-top:30px;padding:18px 16px;text-align:center;border-top:1px solid rgba(255,255,255,.1);color:#bcd1e3;font-size:14px}
@media(max-width:900px){.nav-core,.all-menu-btn{display:none}.mobile-menu-btn{display:block}.header-inner{position:relative;display:grid;grid-template-columns:72px 1fr 72px;gap:0}.logo{position:absolute;left:50%;transform:translateX(-50%);z-index:2}.logo img{max-width:122px;max-height:44px}.header-action{grid-column:3;justify-self:end;z-index:4}.register-btn{padding:9px 14px}.mobile-menu-btn{grid-column:1;justify-self:start}.grid-2{grid-template-columns:1fr}.grid-3,.grid-4,.product-grid,.review-grid,.stat-strip{grid-template-columns:1fr 1fr}.mega-panel{display:none!important}}
@media(max-width:620px){.container{width:min(100% - 22px,1200px)}.section{padding:40px 0}.grid-3,.grid-4,.product-grid,.review-grid,.stat-strip{grid-template-columns:1fr}.card,.zone-card,.info-card,.review-card,.faq-item{padding:20px}.banner-slider{margin:16px 11px 28px;border-radius:16px}.banner-arrow{width:38px;height:38px}.footer-grid{grid-template-columns:1fr}.hero-simple{padding-top:48px}.header-inner{grid-template-columns:56px 1fr 68px}.register-btn{font-size:14px;padding:8px 12px}}