:root{--bg:#F3FBFF;--white:#fff;--light:#EAF8FF;--blue:#22AEEA;--deep:#147FB8;--text:#1F2D3A;--muted:#5C6F82;--soft:#8BA1B5;--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(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}.no-scroll{overflow:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}.container{width:min(1180px,calc(100% - 36px));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,.10)}.desktop-header,.mobile-header{height:76px;display:flex;align-items:center;gap:22px}.brand-logo{width:170px;flex:none}.brand-logo img{width:100%;height:48px;object-fit:contain}.nav-core{display:flex;gap:10px;justify-content:center;flex:1;white-space:nowrap}.nav-core a{padding:10px 17px;border-radius:999px;color:var(--deep);background:rgba(34,174,234,.08);font-weight:700}.nav-core a:hover,.nav-core a.active{color:var(--blue);background:linear-gradient(135deg,rgba(109,230,255,.24),rgba(34,174,234,.12))}.header-actions{display:flex;gap:10px;align-items:center}.overview-btn,.menu-btn,.close-btn{border:0;background:none;cursor:pointer}.overview-btn{padding:10px 14px;border:1px solid var(--line);border-radius:999px;color:var(--deep);font-weight:700}.main-btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 24px;border-radius:999px;background:linear-gradient(135deg,#6DE6FF 0%,#22AEEA 48%,#168DCC 100%);color:#fff;font-weight:800;box-shadow:0 8px 22px 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0}.feature-list span{padding:12px 14px;background:var(--light);border-radius:14px;color:var(--deep);font-weight:700}.notice-box{background:#fff;border-left:4px solid var(--blue);padding:22px;border-radius:0 18px 18px 0;box-shadow:var(--shadow)}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h3{margin:0 0 8px;color:var(--deep)}.page-hero{padding:58px 0;background:linear-gradient(135deg,#fff,#EAF8FF)}.page-hero .inner{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}.page-hero img{width:100%;height:280px;object-fit:contain;background:#fff;border-radius:26px;padding:18px;border:1px solid var(--line);box-shadow:var(--shadow)}.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}.content-block,.side-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}.content-block h2,.content-block h3,.side-card 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@media(max-width:560px){.container{width:min(100% - 24px,1180px)}.hero-section{padding-top:42px}.hero-copy h1,.page-hero h1{font-size:34px}.service-tags{grid-template-columns:1fr 1fr}.board-grid{grid-template-columns:1fr}.hero-visual{padding:12px}.hero-visual img{height:220px}.card img,.zone-card img{height:160px}.app-section img,.support-section img{height:220px}.section{padding:40px 0}}