:root{
  --bg:#E6EBF2;
  --nav:#F5F7FB;
  --white:#FFFFFF;
  --soft:#EEF2F7;
  --soft2:#DDE4EE;
  --blue:#289CFF;
  --deep:#243447;
  --nav-text:#4E5F7A;
  --sub:#66788A;
  --muted:#8A9AAF;
  --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(--deep);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:9999;background:var(--nav);box-shadow:0 10px 28px rgba(56,92,138,0.10);border-bottom:1px solid rgba(40,156,255,0.10)}
.header-inner{width:min(1200px,calc(100% - 32px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{flex:0 0 auto;display:flex;align-items:center}
.logo img{max-height:52px;width:auto;display:block}
.nav-wrap{flex:1 1 auto;min-width:0;display:flex;justify-content:center}
.nav{display:flex;align-items:center;gap:22px;white-space:nowrap;flex-wrap:nowrap}
.nav a,.dropdown-toggle{color:var(--nav-text);font-size:15px;font-weight:700;background:transparent;border:0;cursor:pointer;padding:24px 0;line-height:1;position:relative;font-family:inherit}
.nav a:hover,.dropdown-toggle:hover,.nav a.active,.dropdown.active>.dropdown-toggle{color:var(--blue)}
.nav a.active::after,.dropdown.active>.dropdown-toggle::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;border-radius:3px;background:var(--blue)}
.header-action{flex:0 0 auto;display:flex;align-items:center}.main-btn,.text-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:11px 24px;background:var(--btn);color:#FFFFFF;font-weight:800;box-shadow:0 12px 24px rgba(36,155,255,0.24);border:0;line-height:1.2}.main-btn:hover,.text-btn:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(36,155,255,0.28)}
.text-link{color:var(--blue);font-weight:800}.muted{color:var(--muted)}
.dropdown,.more-dropdown{position:relative}.dropdown-menu,.more-menu{display:none;position:absolute;top:100%;left:0;min-width:190px;background:#FFFFFF;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;padding:8px;overflow:hidden}.more-menu{right:0;left:auto;min-width:210px}.dropdown:hover .dropdown-menu,.dropdown.open .dropdown-menu{display:block}.dropdown-menu a,.more-menu a{display:block;padding:12px 16px;color:var(--nav-text);white-space:nowrap;border-radius:10px;font-size:14px;font-weight:700}.dropdown-menu a:hover,.more-menu a:hover,.dropdown-menu a.active,.more-menu a.active{color:var(--blue);background:rgba(40,156,255,0.08)}
.mobile-menu-btn{display:none;flex:0 0 auto;width:42px;height:42px;border:0;border-radius:12px;background:#FFFFFF;box-shadow:0 8px 20px rgba(56,92,138,0.10);align-items:center;justify-content:center;flex-direction:column;gap:5px}.mobile-menu-btn span{width:20px;height:2px;background:var(--blue);border-radius:3px}.drawer-mask{position:fixed;inset:0;background:rgba(36,52,71,0.36);opacity:0;pointer-events:none;transition:.24s ease;z-index:10001}.mobile-drawer{position:fixed;top:0;bottom:0;left:0;width:84%;max-width:320px;background:#FFFFFF;z-index:10002;transform:translateX(-105%);transition:.28s ease;box-shadow:18px 0 40px rgba(36,52,71,0.18);overflow-y:auto}.drawer-open{overflow:hidden}.drawer-open .drawer-mask{opacity:1;pointer-events:auto}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid var(--line);background:#F5F7FB}.drawer-logo img{max-height:46px;width:auto}.drawer-close{width:38px;height:38px;border:0;border-radius:10px;background:#FFFFFF;color:var(--blue);font-size:28px;line-height:1;cursor:pointer}.drawer-nav{display:grid;padding:14px}.drawer-nav a{padding:13px 14px;border-radius:12px;color:var(--nav-text);font-weight:800;border-bottom:1px solid rgba(40,156,255,0.06)}.drawer-nav a:hover{background:rgba(40,156,255,0.08);color:var(--blue)}
.site-main{padding-top:0}.section{width:min(1200px,calc(100% - 32px));margin:0 auto 32px}.section-narrow{width:min(960px,calc(100% - 32px));margin:0 auto 32px}.section-title{font-size:34px;line-height:1.25;margin:0 0 12px;color:var(--blue)}.section-lead{font-size:17px;color:var(--sub);max-width:820px;margin:0 0 24px}.eyebrow{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;background:rgba(40,156,255,0.10);color:var(--blue);font-weight:900;font-size:13px;margin-bottom:12px}
.hero-section{width:min(1200px,calc(100% - 32px));margin:28px auto 36px;border-radius:22px;background:#FFFFFF;box-shadow:0 18px 40px rgba(56,92,138,0.12);overflow:hidden;position:relative}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:44px}.hero-copy h1{font-size:46px;line-height:1.18;margin:0 0 18px;color:var(--blue)}.hero-copy p{color:var(--sub);font-size:17px;margin:0 0 20px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.hero-tags span,.tag{display:inline-flex;border-radius:999px;padding:7px 12px;background:rgba(40,156,255,0.10);color:var(--blue);font-weight:800;font-size:13px}.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.hero-media{background:#EEF2F7;border-radius:22px;padding:16px;border:1px solid var(--line)}.hero-media img,.content-img,.zone-card img,.app-section img,.page-hero img{max-width:100%;height:auto;object-fit:contain;border-radius:18px}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.hero-stats div{background:#EEF2F7;border:1px solid var(--line);border-radius:16px;padding:14px}.hero-stats strong{display:block;color:var(--blue);font-size:24px}.hero-stats span{display:block;color:var(--muted);font-size:13px}
.card,.zone-card,.info-card,.review-card,.faq-item,.step-card{background:rgba(255,255,255,0.92);border:1px solid rgba(40,156,255,0.16);box-shadow:0 14px 36px rgba(56,92,138,0.10);border-radius:20px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.grid-5{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}.card,.info-card,.review-card,.faq-item,.step-card{padding:24px}.card h3,.info-card h3,.review-card h3,.faq-item h3,.step-card h3,.zone-card h3{margin:0 0 10px;color:var(--blue);font-size:21px}.card p,.info-card p,.review-card p,.faq-item p,.step-card p,.zone-card p{margin:0;color:var(--sub)}.card .num{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:12px;background:rgba(40,156,255,0.12);color:var(--blue);font-weight:900;margin-bottom:12px}.zone-card{overflow:hidden}.zone-card .zone-body{padding:22px}.zone-card img{width:100%;background:#EEF2F7}.plain-list{display:grid;gap:12px;margin:18px 0 0;padding:0;list-style:none}.plain-list li{position:relative;padding-left:24px;color:var(--sub)}.plain-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.app-section{background:#FFFFFF;border-radius:24px;padding:34px;box-shadow:var(--shadow);border:1px solid var(--line)}.app-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center}.notice-band{background:#DDE4EE;border-radius:22px;border:1px solid var(--line);padding:28px}.notice-band p{margin:0;color:var(--sub)}.review-card p{font-size:15px}.review-name{margin-top:14px;color:var(--blue);font-weight:900}.faq-list{display:grid;gap:16px}.page-hero{width:min(1200px,calc(100% - 32px));margin:28px auto 32px;background:#FFFFFF;border-radius:24px;box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden}.page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:40px}.page-hero h1{font-size:42px;line-height:1.2;color:var(--blue);margin:0 0 14px}.page-hero p{color:var(--sub);margin:0 0 16px}.content-block{background:#FFFFFF;border-radius:24px;border:1px solid var(--line);box-shadow:var(--shadow);padding:32px}.content-block p{color:var(--sub)}.split{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.feature-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.feature-row .info-card{padding:20px}.cta-band{display:flex;align-items:center;justify-content:space-between;gap:18px;background:#FFFFFF;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:28px}.cta-band p{margin:0;color:var(--sub)}
.site-footer{background:#243447;color:#EAF3FF;margin-top:54px}.footer-inner{width:min(1200px,calc(100% - 32px));margin:0 auto;padding:42px 0;display:grid;grid-template-columns:1.05fr 1.6fr;gap:42px}.footer-logo img{max-height:54px;width:auto}.footer-brand p{color:#CFE0F2;margin:16px 0 0}.footer-warning{font-size:14px}.footer-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.footer-links h3{margin:0 0 12px;color:#EAF3FF}.footer-links a{display:block;color:#CFE0F2;margin:8px 0}.footer-links a:hover{color:#FFFFFF}.footer-bottom{text-align:center;color:#CFE0F2;padding:18px;border-top:1px solid rgba(234,243,255,0.14);font-size:14px}
@media (max-width:1120px){.nav{gap:16px}.nav a,.dropdown-toggle{font-size:14px}.header-inner{gap:16px}.main-btn{padding:10px 18px}}
@media (max-width:900px){.header-inner{min-height:66px;width:calc(100% - 20px);gap:10px}.mobile-menu-btn{display:flex}.nav-wrap{display:none}.logo{position:absolute;left:50%;transform:translateX(-50%)}.logo img{max-height:46px}.header-action{margin-left:auto}.main-btn{padding:10px 18px}.hero-grid,.page-hero-grid,.app-grid,.footer-inner,.split{grid-template-columns:1fr}.hero-copy h1,.page-hero h1{font-size:34px}.hero-grid,.page-hero-grid{padding:28px}.grid-5,.grid-4,.grid-3,.grid-2,.feature-row{grid-template-columns:1fr 1fr}.footer-links{grid-template-columns:1fr 1fr}.hero-stats{grid-template-columns:1fr 1fr}.cta-band{align-items:flex-start;flex-direction:column}}
@media (max-width:560px){.section-title{font-size:28px}.hero-copy h1,.page-hero h1{font-size:30px}.hero-grid,.page-hero-grid,.app-section,.content-block,.notice-band,.cta-band{padding:22px}.grid-5,.grid-4,.grid-3,.grid-2,.feature-row,.footer-links,.hero-stats{grid-template-columns:1fr}.card,.info-card,.review-card,.faq-item,.step-card{padding:20px}.site-footer{margin-top:36px}.footer-inner{gap:24px}.main-btn{padding:9px 15px;font-size:14px}.logo img{max-height:42px}}