:root{--blue:#4D8FF7;--deep:#253B73;--cyan:#54D2F3;--text:#222;--muted:#5B6A82;--soft:#8795AA;--line:rgba(77,143,247,.12);--shadow:0 16px 40px rgba(37,59,115,.10);--footer:#1B2F5B}
*{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{height:78px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;flex:0 0 auto}.brand img{width:156px;max-height:50px}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:6px;flex:1;white-space:nowrap}.desktop-nav a{padding:9px 11px;border-radius:999px;color:var(--deep);font-size:15px}.desktop-nav a:hover,.desktop-nav a.active,.drawer-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{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;position:relative;overflow:hidden;isolation:isolate;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;white-space:nowrap;transition:.2s}.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}.mobile-drawer,.drawer-overlay{display:none}
.hero-section{padding:76px 0 46px;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:1.08fr .92fr;gap:56px;align-items:center}.section-kicker,.tag,.label,.num,.badge{color:var(--blue);font-weight:800;letter-spacing:.04em}.hero-copy h1,.page-hero h1{font-size:clamp(36px,5vw,62px);line-height:1.15;margin:12px 0 24px;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:32px;padding:28px;box-shadow:var(--shadow);position:relative}.hero-visual:before{content:"";position:absolute;inset:16px;border-radius:24px;border:1px solid rgba(84,210,243,.28);pointer-events:none}.hero-visual img{width:100%;max-height:410px}.hero-services{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mini-card,.card,.zone-card,.info-card,.faq-item,.service-point{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px}.mini-card{padding:22px}.mini-card strong{display:block;color:var(--deep);font-size:18px}.mini-card span{color:var(--muted)}
.section{padding:78px 0}.section.alt{background:#F7FAFF}.section.cyan{background:#EEF9FF}.section-head{max-width:760px;margin-bottom:34px}.section-title{font-size:clamp(28px,4vw,42px);line-height:1.25;color:var(--deep);margin:8px 0 14px}.section-head p{color:var(--muted);margin:0}.pill-nav{display:flex;gap:12px;overflow-x:auto;padding:10px 2px 22px;scrollbar-width:thin}.pill{min-width:220px;flex:1;padding:18px;background:rgba(255,255,255,.86);border:1px solid rgba(77,143,247,.14);border-radius:18px}.pill:hover{border-color:var(--cyan);box-shadow:0 12px 28px rgba(77,143,247,.12)}.pill strong{display:block;color:var(--deep);font-size:17px}.pill span{font-size:14px;color:var(--muted)}.intro-strip{padding:28px 32px;border-radius:22px;background:linear-gradient(135deg,#fff,#EEF4FF);border:1px solid var(--line);color:var(--muted)}.info-board{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.info-card{padding:24px}.info-card h3,.zone-card h3,.card h3{color:var(--deep);margin:8px 0}.info-card p,.zone-card p,.card p{color:var(--muted);margin:0}.alternating{display:grid;gap:28px}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center;padding:28px;background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}.feature-row.reverse .feature-media{order:2}.feature-media{background:#F7FAFF;border-radius:22px;padding:20px}.feature-media img{width:100%;max-height:320px}.feature-copy h2{color:var(--deep);font-size:32px;margin:6px 0 14px}.feature-copy p{color:var(--muted)}.points{padding:0;margin:18px 0;list-style:none;display:grid;gap:8px}.points li:before{content:"•";color:var(--cyan);font-weight:900;margin-right:10px}.text-link{color:var(--blue);font-weight:700}.zone-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.zone-card{overflow:hidden;padding:18px}.zone-card .img-wrap{height:150px;background:#F7FAFF;border-radius:16px;padding:10px;display:flex;align-items:center}.zone-card img{width:100%;max-height:130px}.app-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:center;padding:36px;border-radius:30px;background:linear-gradient(135deg,#fff,#EEF4FF 58%,#EEF9FF);border:1px solid var(--line)}.app-section img{max-height:350px;margin:auto}.security-grid,.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-point{padding:22px}.faq-list{display:grid;gap:14px}.faq-item{padding:22px}.faq-item h3{margin:0 0 8px;color:var(--deep)}.faq-item p{margin:0;color:var(--muted)}
.page-hero{padding:64px 0;background:linear-gradient(135deg,#fff,#F7FAFF 55%,#EEF9FF)}.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}.page-hero p{color:var(--muted);font-size:17px}.page-hero img{max-height:360px;margin:auto;background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:var(--shadow)}.article{max-width:940px}.article h2{color:var(--deep);font-size:30px;margin:42px 0 12px}.article h3{color:var(--deep);margin-top:28px}.article p{color:var(--muted)}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quote{padding:22px;border-left:4px solid var(--cyan);background:#F7FAFF;border-radius:16px;color:var(--muted)}
.site-footer{background:var(--footer);color:#EEF6FF;padding:58px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px}.footer-brand img{width:160px;filter:brightness(0) invert(1);margin-bottom:18px}.site-footer h3{color:#fff;margin-top:0}.site-footer p{color:#cfddf3}.site-footer a{display:block;color:#EEF6FF;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;color:#b9cae4}
@media(max-width:1050px){.desktop-nav a{padding:8px 7px;font-size:13px}.brand img{width:138px}.zone-grid{grid-template-columns:repeat(2,1fr)}.info-board{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
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@media(max-width:560px){.container{width:min(100% - 28px,1180px)}.hero-copy h1,.page-hero h1{font-size:36px}.hero-copy p{font-size:15px}.info-board,.zone-grid,.security-grid,.content-grid,.quote-grid,.footer-grid{grid-template-columns:1fr}.feature-row{padding:18px;gap:22px}.feature-copy h2{font-size:27px}.app-section{padding:24px}.section{padding:48px 0}.footer-bottom{flex-direction:column;gap:8px}.pill{min-width:205px}.hero-visual{padding:18px}.header-inner{height:64px}}