:root{--blue:#4D8FF7;--deep:#253B73;--cyan:#54D2F3;--text:#222;--muted:#5B6A82;--line:rgba(77,143,247,.12);--soft:#F7FAFF;--soft2:#EEF4FF;--soft3:#EEF9FF;--footer:#1B2F5B;--shadow:0 16px 40px rgba(37,59,115,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto;object-fit:contain}.container{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(37,59,115,.08)}.header-inner{width:min(1240px,calc(100% - 32px));height:78px;margin:auto;display:flex;align-items:center;gap:24px}.brand-logo img{width:145px;max-height:48px}.main-nav{flex:1;display:flex;justify-content:center;gap:5px;white-space:nowrap}.main-nav a{padding:10px 12px;border-radius:999px;color:var(--deep);font-size:15px;transition:.25s}.main-nav a:hover,.main-nav a.active{background:linear-gradient(135deg,rgba(77,143,247,.10),rgba(84,210,243,.12));color:var(--blue);box-shadow:inset 0 -2px 0 var(--cyan)}.main-btn{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;padding:11px 22px;background:linear-gradient(135deg,#4D8FF7 0%,#5EAEF5 48%,#54D2F3 100%);color:#fff;border-radius:999px;box-shadow:0 12px 26px rgba(77,143,247,.22);font-weight:700;transition:.25s;white-space:nowrap}.main-btn:after{content:"";position:absolute;inset:0;border-radius:inherit;border:1px solid rgba(255,255,255,.56);box-shadow:0 0 12px rgba(77,143,247,.20),0 0 18px rgba(84,210,243,.24);pointer-events:none}.main-btn:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(77,143,247,.28)}.mobile-header{display:none}.hero-section{padding:72px 0 30px;background:radial-gradient(circle at 15% 20%,rgba(77,143,247,.12) 0%,rgba(77,143,247,0) 30%),radial-gradient(circle at 88% 18%,rgba(84,210,243,.16) 0%,rgba(84,210,243,0) 28%),linear-gradient(135deg,#fff 0%,#F7FAFF 52%,#EEF4FF 100%)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}.section-kicker,.tag,.label,.num,.badge{color:var(--blue);font-weight:800;letter-spacing:.05em}.hero-copy h1{font-size:clamp(36px,5vw,62px);line-height:1.18;margin:14px 0 22px;color:var(--deep)}.hero-copy p{font-size:17px;color:var(--muted);margin:0 0 28px}.hero-visual{background:#fff;border:1px solid var(--line);border-radius:30px;padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-visual:before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:rgba(84,210,243,.18);right:-60px;top:-70px}.hero-visual img{position:relative;max-height:430px;margin:auto}.service-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:38px}.service-mini{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 26px rgba(37,59,115,.07)}.service-mini strong{display:block;color:var(--deep);font-size:17px}.service-mini span{color:var(--muted);font-size:14px}.pill-strip{padding:25px 0;background:#fff}.pill-scroll{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px}.pill-item{min-width:170px;flex:1;border:1px solid rgba(77,143,247,.14);border-radius:999px;padding:13px 18px;background:rgba(255,255,255,.9);transition:.25s}.pill-item:hover{border-color:var(--cyan);box-shadow:0 10px 24px rgba(77,143,247,.11)}.pill-item b{display:block;color:var(--deep)}.pill-item small{color:var(--muted)}.section{padding:76px 0}.section.alt{background:var(--soft)}.section-head{max-width:760px;margin:0 auto 38px;text-align:center}.section-head h2,.section-title{color:var(--deep);font-size:clamp(28px,4vw,42px);line-height:1.25;margin:10px 0 14px}.section-head p{color:var(--muted)}.intro-bar{padding:26px 30px;border-radius:22px;background:linear-gradient(135deg,#fff,#EEF9FF);border:1px solid var(--line);box-shadow:0 12px 30px rgba(37,59,115,.07);color:var(--muted)}.info-board{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.card,.zone-card,.info-card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px}.info-card{padding:25px}.info-card h3,.zone-card h3,.content-copy h2{color:var(--deep)}.info-card p,.zone-card p,.content-copy p{color:var(--muted)}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin:0 0 64px}.feature-row.reverse .content-img-wrap{order:2}.content-img-wrap{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--shadow)}.content-img{width:100%;max-height:360px}.content-copy h2{font-size:34px;margin:10px 0 16px}.service-points{padding:0;margin:22px 0;list-style:none}.service-points li{position:relative;padding-left:24px;margin:9px 0;color:var(--muted)}.service-points li:before{content:"";width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));position:absolute;left:0;top:.65em}.text-link{color:var(--blue);font-weight:800}.zone-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.zone-card{overflow:hidden}.zone-card .img-box{height:185px;padding:18px;background:linear-gradient(145deg,#F7FAFF,#EEF9FF);display:flex;align-items:center;justify-content:center}.zone-card img{max-height:100%}.zone-card .zone-body{padding:22px}.app-banner{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:center;padding:38px;border-radius:30px;background:linear-gradient(135deg,#fff,#EEF4FF,#EEF9FF);border:1px solid var(--line);box-shadow:var(--shadow)}.app-banner img{max-height:380px;margin:auto}.feature-tags{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.feature-tags span{padding:12px 14px;border-radius:14px;background:#fff;border:1px solid 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var(--line);border-radius:25px;padding:24px;box-shadow:var(--shadow)}.page-hero-image img{max-height:350px;margin:auto}.prose{max-width:920px;margin:auto}.prose h2{color:var(--deep);font-size:30px;margin-top:46px}.prose h3{color:var(--deep);font-size:21px}.prose p{color:var(--muted)}.prose-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:30px 0}.prose-card{padding:24px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 26px rgba(37,59,115,.07)}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quote-card{padding:22px;border-radius:18px;background:var(--soft3);border:1px solid var(--line);color:var(--muted)}.site-footer{background:var(--footer);color:#EEF6FF;padding-top:54px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}.footer-brand img{width:150px;filter:brightness(0) invert(1);margin-bottom:18px}.site-footer h3{color:#fff;margin-top:0}.site-footer a{display:block;color:#DDEBFF;margin:8px 0}.site-footer p{color:#C7D8F2;margin:0}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.12);padding:20px;margin-top:40px;color:#C7D8F2}.mobile-drawer,.drawer-overlay{display:none}
@media(max-width:1000px){.desktop-header{display:none}.mobile-header{display:flex;justify-content:space-between;height:68px}.mobile-logo{position:absolute;left:50%;transform:translateX(-50%)}.mobile-logo img{width:120px}.menu-toggle{border:0;background:transparent;width:42px;height:42px;padding:8px;display:grid;align-content:center;gap:5px}.menu-toggle span{display:block;height:2px;background:var(--deep);border-radius:3px}.mobile-main-btn{padding:9px 14px;font-size:13px}.drawer-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.42);z-index:10000;opacity:0;visibility:hidden;transition:.25s}.drawer-overlay.show{opacity:1;visibility:visible}.mobile-drawer{display:block;position:fixed;left:0;top:0;bottom:0;width:82%;max-width:320px;background:#fff;z-index:10001;transform:translateX(-102%);transition:transform .3s ease;box-shadow:20px 0 50px rgba(0,0,0,.16)}.mobile-drawer.open{transform:translateX(0)}.drawer-top{height:72px;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--line)}.drawer-top img{width:125px}.drawer-top button{border:0;background:var(--soft2);width:38px;height:38px;border-radius:50%;font-size:24px;color:var(--deep)}.drawer-nav{padding:16px}.drawer-nav a{display:block;padding:13px 14px;border-radius:12px;color:var(--deep);font-weight:700}.drawer-nav a:hover{background:var(--soft2);color:var(--blue)}body.drawer-open{overflow:hidden}.hero-grid,.page-hero-grid{grid-template-columns:1fr}.hero-copy{text-align:center}.hero-copy .main-btn{margin:auto}.service-mini-grid{grid-template-columns:1fr}.info-board{grid-template-columns:repeat(2,1fr)}.feature-row,.app-banner,.security-layout{grid-template-columns:1fr}.feature-row.reverse .content-img-wrap{order:0}.zone-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.container{width:min(100% - 26px,1180px)}.hero-section{padding-top:44px}.hero-copy h1{font-size:38px}.hero-copy p{font-size:15px}.hero-visual{padding:16px}.section{padding:56px 0}.info-board,.security-cards,.prose-grid,.quote-grid{grid-template-columns:1fr}.zone-grid{grid-template-columns:1fr}.feature-row{gap:24px;margin-bottom:42px}.content-copy h2{font-size:28px}.app-banner{padding:24px}.feature-tags{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.pill-item{min-width:185px}.page-hero{padding:48px 0}.page-hero h1{font-size:36px}}