:root{
  --brand: rgb(89, 126, 247);
  --brandHex:#597EF7;
  --deep:#1D2B5F;
  --text:#222222;
  --muted:#5B647A;
  --soft:#ECF0FF;
  --page:#F6F8FF;
  --sky:#EAF7FF;
  --white:#FFFFFF;
  --line:rgba(89,126,247,0.16);
  --shadow:0 16px 40px rgba(89,126,247,0.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:#F6F8FF;color:var(--text);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none} img{max-width:100%;height:auto;display:block}.container{width:min(1180px,92vw);margin:0 auto}.section{padding:72px 0}.section-alt{background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 55%,#EAF7FF 100%)}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-weight:700;font-size:14px}.section-title{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:14px 0 18px;color:var(--deep);letter-spacing:-.5px}.section-lead{color:#3F4A66;max-width:760px;margin:0 0 28px}.text-link{color:var(--brand);font-weight:700;display:inline-flex;align-items:center;gap:6px}.text-link:after{content:'›';font-size:18px}.site-header{position:sticky;top:0;z-index:9999;background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(89,126,247,.10)}.desktop-nav{height:76px;display:flex;align-items:center;gap:26px}.brand img{width:142px;max-height:48px;object-fit:contain}.nav-links{flex:1;display:flex;justify-content:center;gap:6px;white-space:nowrap}.nav-links a{color:var(--deep);font-weight:700;font-size:15px;padding:9px 12px;border-radius:999px}.nav-links a:hover,.nav-links a.active{color:var(--brand);background:rgba(255,255,255,.72);box-shadow:0 8px 18px rgba(89,126,247,.08)}.main-btn{position:relative;overflow:hidden;isolation:isolate;background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%);color:#fff;border-radius:999px;box-shadow:0 10px 24px rgba(89,126,247,.28);font-weight:800;padding:12px 22px;display:inline-flex;align-items:center;justify-content:center;border:0;transition:.25s}.main-btn::before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.85) 35%,transparent 70%);transform:translateX(-120%);animation:btnShine 2.4s infinite;z-index:-1}.main-btn::after{content:"";position:absolute;inset:-1px;border-radius:inherit;border:1px solid rgba(255,255,255,.65);box-shadow:0 0 8px rgba(122,196,245,.55),0 0 18px rgba(89,126,247,.35);pointer-events:none}.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(89,126,247,.34)}@keyframes btnShine{0%{transform:translateX(-120%)}55%{transform:translateX(120%)}100%{transform:translateX(120%)}}.header-btn{font-size:14px;padding:10px 18px;white-space:nowrap}.mobile-topbar{display:none}.drawer-mask,.mobile-drawer{display:none}.hero-section{background:radial-gradient(circle at 18% 20%,rgba(255,255,255,.95) 0%,rgba(255,255,255,0) 32%),linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);padding:86px 0 62px}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}.hero-title{font-size:clamp(36px,5vw,64px);line-height:1.08;color:var(--deep);margin:18px 0}.hero-title span{color:var(--brand)}.hero-text{color:#3F4A66;font-size:17px;max-width:680px}.hero-actions{display:flex;gap:16px;align-items:center;margin:28px 0}.service-tags{display:flex;gap:12px;flex-wrap:wrap}.service-tags span{background:rgba(255,255,255,.76);border:1px solid var(--line);border-radius:999px;padding:8px 14px;color:var(--deep);font-weight:700}.hero-panel{background:rgba(255,255,255,.58);border:1px solid rgba(255,255,255,.9);box-shadow:0 24px 60px rgba(89,126,247,.16);border-radius:34px;padding:22px;backdrop-filter:blur(16px)}.hero-visual img,.content-img,.zone-card img,.app-section img{max-width:100%;height:auto;object-fit:contain}.hero-visual{background:linear-gradient(145deg,rgba(255,255,255,.9),rgba(236,240,255,.66));border-radius:28px;padding:16px;min-height:280px;display:flex;align-items:center;justify-content:center}.hero-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}.hero-mini div{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:18px;padding:14px}.hero-mini strong{display:block;color:var(--brand);font-size:15px}.hero-mini small{color:var(--muted)}.quick-nav{margin-top:-28px;position:relative;z-index:2}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.quick-card,.info-card,.card,.zone-card{background:rgba(255,255,255,.86);border:1px solid rgba(89,126,247,.16);box-shadow:0 16px 40px rgba(89,126,247,.10);border-radius:24px}.quick-card{padding:18px;min-height:118px}.quick-card b{color:var(--brand);font-size:18px}.quick-card h3{margin:6px 0;color:var(--deep);font-size:18px}.quick-card p{margin:0;color:var(--muted);font-size:14px}.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.info-card{padding:22px}.info-card .num{color:var(--brand);font-weight:900;font-size:22px}.info-card h3{color:var(--deep);margin:8px 0 8px}.info-card p{color:var(--muted);margin:0}.feature-stack{display:grid;gap:28px}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:32px;padding:28px;box-shadow:var(--shadow)}.feature-row:nth-child(even) .feature-media{order:2}.feature-media{background:linear-gradient(145deg,#fff,#ECF0FF);border-radius:26px;padding:18px;min-height:260px;display:flex;align-items:center;justify-content:center}.feature-content h2{color:var(--deep);font-size:30px;margin:8px 0 14px}.feature-content p{color:#3F4A66}.point-list{display:grid;gap:8px;margin:18px 0}.point-list span{color:var(--deep);font-weight:700}.zone-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.zone-card{padding:18px;overflow:hidden}.zone-card.wide{grid-column:span 2}.zone-card .imgbox{height:150px;background:linear-gradient(145deg,#fff,#ECF0FF);border-radius:18px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;padding:10px}.zone-card img{max-height:130px}.zone-card .tag{color:var(--brand);font-weight:800;font-size:13px}.zone-card h3{color:var(--deep);margin:6px 0}.zone-card p{color:var(--muted);margin:0 0 12px}.app-band{background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 55%,#EAF7FF 100%);border:1px solid rgba(255,255,255,.9);border-radius:34px;padding:34px;display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center;box-shadow:var(--shadow)}.app-media{display:flex;justify-content:center;background:rgba(255,255,255,.64);border-radius:28px;padding:18px}.app-media img{max-height:380px}.mini-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0}.mini-list div,.security-card{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:18px;padding:15px;color:var(--deep);font-weight:700}.support-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:start}.support-image{background:linear-gradient(145deg,#fff,#ECF0FF);border-radius:28px;padding:18px;margin-top:22px}.security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.security-card b{display:block;color:var(--brand);margin-bottom:6px}.security-card p{margin:0;color:var(--muted);font-weight:500}.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow)}.faq-item h3{margin:0 0 8px;color:var(--deep)}.faq-item p{margin:0;color:var(--muted)}.notice{background:linear-gradient(135deg,#fff,#ECF0FF);border:1px solid var(--line);border-radius:28px;padding:28px;color:#3F4A66}.notice strong{color:var(--deep)}.inner-hero{background:radial-gradient(circle at 18% 20%,rgba(255,255,255,.95) 0%,rgba(255,255,255,0) 32%),linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);padding:72px 0}.inner-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center}.inner-grid.no-image{grid-template-columns:1fr}.inner-hero h1{font-size:clamp(32px,4vw,52px);color:var(--deep);line-height:1.12;margin:16px 0}.inner-hero p{color:#3F4A66}.inner-img{background:rgba(255,255,255,.66);border:1px solid var(--line);border-radius:30px;padding:20px;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}.inner-img img{max-height:380px;object-fit:contain}.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}.article-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:30px;box-shadow:var(--shadow)}.article-card h2{color:var(--deep);font-size:28px;margin:0 0 12px}.article-card h3{color:var(--deep);margin-top:24px}.article-card p,.article-card li{color:#3F4A66}.side-card{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow);position:sticky;top:98px}.side-card h3{margin-top:0;color:var(--deep)}.side-card a{display:block;color:var(--brand);font-weight:700;padding:8px 0}.list-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}.list-panel div{background:#F6F8FF;border:1px solid var(--line);border-radius:18px;padding:16px}.list-panel b{color:var(--brand)}.site-footer{background:#1F1F1F;color:#d8d8d8;padding:54px 0 0}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}.footer-brand img{width:142px;margin-bottom:16px}.site-footer h3{color:#fff;margin-top:0}.site-footer a{display:block;color:#e8e8e8;margin:8px 0}.site-footer p{color:#c9c9c9}.footer-bottom{background:#2B2B2B;text-align:center;padding:16px;margin-top:32px;color:#cfcfcf}.download-note{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;color:#3F4A66}.table-card{overflow:auto}.info-table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden}.info-table th,.info-table td{border-bottom:1px solid #ECF0FF;padding:14px;text-align:left}.info-table th{color:var(--deep);background:#ECF0FF}.info-table td{color:#3F4A66}@media (max-width:1020px){.nav-links{gap:2px}.nav-links a{font-size:14px;padding:8px}.quick-grid,.overview-grid{grid-template-columns:repeat(2,1fr)}.zone-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:1fr}.side-card{position:static}.footer-grid{grid-template-columns:1fr 1fr}.list-panel{grid-template-columns:1fr 1fr}}@media (max-width:760px){body{padding-top:0}.desktop-nav{display:none}.mobile-topbar{height:64px;display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:8px;padding:0 12px;background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%)}.mobile-logo{justify-self:center}.mobile-logo img{width:118px;max-height:42px;object-fit:contain}.menu-toggle{width:44px;height:44px;border:0;background:rgba(255,255,255,.74);border-radius:14px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px}.menu-toggle span{width:22px;height:2px;background:var(--deep);border-radius:2px}.header-btn{padding:8px 12px;font-size:13px}.drawer-mask{display:block;position:fixed;inset:0;background:rgba(0,0,0,.42);opacity:0;pointer-events:none;transition:.25s;z-index:10000}.mobile-drawer{display:block;position:fixed;top:0;left:0;width:84vw;max-width:320px;height:100vh;background:linear-gradient(135deg,#fff 0%,#ECF0FF 100%);transform:translateX(-105%);transition:.28s ease;z-index:10001;box-shadow:20px 0 45px rgba(29,43,95,.18);padding:18px;overflow: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-bottom:18px;border-bottom:1px solid var(--line)}.drawer-head img{width:132px}.drawer-close{font-size:30px;line-height:1;border:0;background:#fff;color:var(--deep);width:42px;height:42px;border-radius:50%}.drawer-nav{display:grid;gap:8px;margin-top:18px}.drawer-nav a{padding:13px 14px;border-radius:16px;color:var(--deep);font-weight:800;background:rgba(255,255,255,.58)}.drawer-nav a.active{color:var(--brand);background:#fff}.hero-section{padding:50px 0}.hero-grid,.inner-grid,.support-grid,.app-band,.feature-row{grid-template-columns:1fr}.hero-actions{justify-content:flex-start}.hero-panel{padding:14px;border-radius:24px}.hero-visual{min-height:unset}.hero-mini{grid-template-columns:1fr}.quick-nav{margin-top:0;padding-top:18px}.quick-grid{grid-template-columns:repeat(2,minmax(180px,1fr));overflow-x:auto;padding-bottom:6px}.overview-grid,.faq-grid,.security-grid,.mini-list,.footer-grid,.list-panel{grid-template-columns:1fr}.zone-grid{grid-template-columns:1fr}.zone-card.wide{grid-column:auto}.feature-row:nth-child(even) .feature-media{order:0}.feature-row{padding:18px;border-radius:24px}.feature-media{min-height:unset}.app-band{padding:22px;border-radius:24px}.section{padding:48px 0}.content-grid{gap:18px}.article-card{padding:22px}.inner-hero{padding:48px 0}.footer-grid{gap:18px}}