:root{--blue:#22AEEA;--deep:#147FB8;--ink:#1F2D3A;--muted:#5C6F82;--soft:#8BA1B5;--bg:#F3FBFF;--line:rgba(34,174,234,.16);--shadow:0 14px 36px rgba(34,174,234,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 system-ui,-apple-system,"Microsoft YaHei",sans-serif;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}.container{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(34,174,234,.1)}.desktop-head,.mobile-head{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo img{width:150px;max-height:46px;object-fit:contain}.nav-core{display:flex;gap:8px;white-space:nowrap}.nav-core a{padding:9px 15px;color:var(--deep);background:rgba(34,174,234,.08);border-radius:999px;font-weight:700}.nav-core 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@media(max-width:600px){.container{width:min(100% - 22px,1180px)}.hero-section{padding:34px 0}.hero-copy h1{font-size:36px}.summary-cards,.grid-4,.grid-2,.reviews{grid-template-columns:1fr}.panel-groups{grid-template-columns:1fr}.section{padding:40px 0}.section-title{font-size:29px}.hero-visual img{height:210px}.content-img,.zone-card img,.app-section img{height:170px}.footer-grid{grid-template-columns:1fr}}