*{box-sizing:border-box;margin:0;padding:0}
:root{
  --blue:#2563eb;
  --blue2:#38bdf8;
  --cyan:#22d3ee;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e5efff;
  --glass:rgba(255,255,255,.82);
}
html{scroll-behavior:smooth}
body{
  min-height:100vh;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:#eef6ff;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}

.stage{
  position:fixed;
  inset:0;
  z-index:-1;
  overflow:hidden;
  background:
    radial-gradient(circle at 50% -80px,#16458f 0,#0a1b38 310px,#edf5ff 311px,#fff 100%);
}
.stage:before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:340px;
  background:
    linear-gradient(115deg,rgba(59,130,246,.22),transparent 36%),
    linear-gradient(245deg,rgba(34,211,238,.18),transparent 38%),
    radial-gradient(circle at 50% 14%,rgba(125,211,252,.20),transparent 32%);
}
.stage:after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;height:340px;
  opacity:.10;
  background-image:
    linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(#000,transparent);
}
.light{
  position:absolute;
  border-radius:50%;
  filter:blur(18px);
  opacity:.55;
  animation:moveLight 14s ease-in-out infinite;
}
.light-a{width:300px;height:300px;background:#3b82f6;left:6%;top:58px}
.light-b{width:240px;height:240px;background:#22d3ee;right:7%;top:80px;animation-delay:-5s}
.light-c{width:180px;height:180px;background:#60a5fa;left:44%;top:150px;animation-delay:-9s}

.wrap{
  width:min(1120px,100%);
  margin:0 auto;
  padding:14px 14px 34px;
}
.nav{
  height:70px;
  padding:0 18px;
  border-radius:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  position:sticky;
  top:12px;
  z-index:20;
  color:#fff;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(22px);
  box-shadow:0 20px 52px rgba(2,8,23,.20);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:31px;
  font-weight:950;
  letter-spacing:.2px;
}
.brand img{display:none;max-height:42px}
.brand span{color:#7dd3fc}
.nav-action{
  min-width:86px;
  height:42px;
  padding:0 14px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  font-size:15px;
  font-weight:850;
}
.nav-action.active{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  border-color:transparent;
  box-shadow:0 12px 28px rgba(37,99,235,.34);
}

.hero{
  margin-top:26px;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:18px;
}
.hero-copy,.hero-visual,.site-panel,.trust,.notice,.metrics{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.82);
  backdrop-filter:blur(18px);
  box-shadow:0 24px 70px rgba(30,64,175,.12);
}
.hero-copy{
  min-height:480px;
  border-radius:34px;
  padding:50px 46px;
  overflow:hidden;
  position:relative;
}
.hero-copy:after{
  content:"";
  position:absolute;
  right:-100px;
  bottom:-110px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(37,99,235,.07);
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 15px;
  border-radius:999px;
  background:#eff6ff;
  border:1px solid #dbeafe;
  color:#1d4ed8;
  font-size:14px;
  font-weight:900;
}
.pill i{
  width:8px;height:8px;border-radius:50%;
  background:#22c55e;
  box-shadow:0 0 0 6px rgba(34,197,94,.14);
}
.hero h1{
  margin-top:25px;
  font-size:72px;
  line-height:1;
  letter-spacing:-2.5px;
  color:#1d4ed8;
}
.hero h2{
  margin-top:12px;
  font-size:40px;
  line-height:1.15;
}
.hero p{
  max-width:560px;
  margin-top:16px;
  color:var(--muted);
  font-size:19px;
  line-height:1.85;
}
.cta-row{
  margin-top:32px;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.cta-main,.cta-light{
  height:58px;
  padding:0 28px;
  border-radius:18px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  font-weight:950;
}
.cta-main{
  color:#fff;
  background:linear-gradient(135deg,#2563eb,#3b82f6);
  box-shadow:0 18px 44px rgba(37,99,235,.32);
}
.cta-light{
  color:#1d4ed8;
  background:#fff;
  border:1px solid #dbeafe;
}

.hero-visual{
  min-height:480px;
  border-radius:34px;
  padding:36px 24px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
}
.visual-card{
  width:285px;
  height:285px;
  border-radius:50%;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  background:radial-gradient(circle,#fff 0,#f1f7ff 72%);
  box-shadow:inset 0 0 0 1px #dbeafe,0 24px 60px rgba(37,99,235,.18);
}
.ring{
  position:absolute;
  border-radius:50%;
  border:1px solid rgba(37,99,235,.18);
}
.ring-1{inset:17px}
.ring-2{inset:42px;border-style:dashed;animation:spin 18s linear infinite}
.shield{
  width:128px;
  height:148px;
  border-radius:38px 38px 70px 70px;
  background:linear-gradient(145deg,#a3f56f,#22c55e);
  box-shadow:0 24px 42px rgba(34,197,94,.30);
  position:relative;
  z-index:2;
  animation:shieldFloat 3.5s ease-in-out infinite;
}
.shield em{
  position:absolute;
  left:38px;
  top:53px;
  width:53px;
  height:26px;
  border-left:10px solid #fff;
  border-bottom:10px solid #fff;
  transform:rotate(-45deg);
  border-radius:5px;
}
.scanner{
  position:absolute;
  width:192px;
  height:4px;
  border-radius:999px;
  background:linear-gradient(90deg,transparent,rgba(37,99,235,.85),transparent);
  z-index:3;
  animation:scan 2.8s ease-in-out infinite;
}
.safe-text{
  margin-top:24px;
}
.safe-text b{
  display:block;
  font-size:28px;
}
.safe-text span{
  display:block;
  margin-top:8px;
  color:var(--muted);
}

.metrics{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-radius:28px;
  overflow:hidden;
}
.metrics div{
  padding:19px 12px;
  text-align:center;
  background:rgba(255,255,255,.74);
}
.metrics b{
  display:block;
  color:#2563eb;
  font-size:26px;
}
.metrics span{
  display:block;
  margin-top:5px;
  color:var(--muted);
  font-size:13px;
}

.site-panel,.trust,.notice{
  margin-top:16px;
  border-radius:30px;
}
.site-panel{
  padding:30px;
}
.panel-head{
  text-align:center;
  margin-bottom:24px;
}
.panel-head h2{
  font-size:31px;
}
.panel-head p{
  margin-top:7px;
  color:var(--muted);
}
.sites{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:12px;
}
.site-card{
  min-height:166px;
  padding:18px;
  border-radius:22px;
  background:linear-gradient(180deg,#f8fbff,#fff);
  border:1px solid var(--line);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  transition:.22s ease;
}
.site-card:hover{
  transform:translateY(-5px);
  box-shadow:0 18px 44px rgba(37,99,235,.14);
  border-color:#bfdbfe;
}
.number{
  width:40px;
  height:28px;
  border-radius:999px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#eff6ff;
  color:#2563eb;
  font-size:13px;
  font-weight:950;
}
.site-card b{
  display:block;
  margin-top:16px;
  color:#1e3a8a;
  font-size:18px;
}
.site-card small{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:12px;
  word-break:break-all;
}
.site-card em{
  height:38px;
  border-radius:999px;
  background:#2563eb;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-style:normal;
  font-size:14px;
  font-weight:900;
}

.trust{
  padding:18px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}
.trust-card{
  padding:20px;
  min-height:126px;
  border-radius:22px;
  background:#f8fbff;
  border:1px solid var(--line);
}
.trust-card i{
  width:42px;height:42px;border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  font-style:normal;
  font-weight:950;
  margin-bottom:12px;
}
.trust-card b{
  display:block;
  font-size:18px;
}
.trust-card span{
  display:block;
  margin-top:7px;
  color:var(--muted);
  font-size:14px;
  line-height:1.5;
}
.notice{
  padding:22px 24px;
  color:var(--muted);
  line-height:1.75;
}
.notice b{
  display:block;
  color:var(--text);
  font-size:18px;
  margin-bottom:6px;
}
footer{
  padding:24px 0 4px;
  text-align:center;
  color:#94a3b8;
  font-size:13px;
}
.float-cta{display:none}

@keyframes spin{to{transform:rotate(360deg)}}
@keyframes shieldFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
@keyframes scan{0%,100%{top:31%;opacity:.18}50%{top:70%;opacity:.95}}
@keyframes moveLight{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(26px,-18px) scale(1.06)}}

@media(max-width:860px){
  body{padding-bottom:78px}
  .stage{background:linear-gradient(180deg,#071a36 0,#0c2550 235px,#edf5ff 235px,#fff 100%)}
  .stage:before,.stage:after{height:235px}
  .wrap{padding:10px 10px 28px}
  .nav{height:60px;border-radius:18px;padding:0 10px;top:8px}
  .brand{font-size:22px}
  .nav-action{height:38px;min-width:auto;padding:0 12px;font-size:14px;border-radius:12px}
  .hero{grid-template-columns:1fr;margin-top:18px;gap:12px}
  .hero-copy{order:2;min-height:auto;border-radius:26px;padding:26px 18px;text-align:center}
  .hero-visual{order:1;min-height:auto;border-radius:26px;padding:26px 18px}
  .pill{height:auto;min-height:34px;padding:8px 13px;font-size:13px}
  .hero h1{margin-top:20px;font-size:46px;letter-spacing:-1px}
  .hero h2{font-size:30px}
  .hero p{font-size:16px;line-height:1.7}
  .cta-row{margin-top:22px}
  .cta-main,.cta-light{width:100%;height:54px;font-size:18px}
  .visual-card{width:178px;height:178px}
  .shield{width:82px;height:96px;border-radius:24px 24px 46px 46px}
  .shield em{left:24px;top:35px;width:34px;height:17px;border-left-width:8px;border-bottom-width:8px}
  .scanner{width:120px}
  .safe-text{margin-top:14px}
  .safe-text b{font-size:23px}
  .safe-text span{font-size:14px}
  .metrics{margin-top:12px;border-radius:22px}
  .metrics div{padding:12px 6px}
  .metrics b{font-size:20px}
  .metrics span{font-size:12px}
  .site-panel,.trust,.notice{margin-top:12px;border-radius:24px}
  .site-panel{padding:20px 14px}
  .panel-head h2{font-size:24px}
  .panel-head p{font-size:14px}
  .sites{grid-template-columns:1fr;gap:10px}
  .site-card{
    min-height:76px;
    border-radius:18px;
    padding:13px 14px;
    display:grid;
    grid-template-columns:42px 1fr 76px;
    align-items:center;
    gap:10px;
  }
  .site-card b{margin-top:0;font-size:18px}
  .site-card small{margin-top:4px;font-size:12px}
  .site-card em{height:38px;font-size:14px}
  .trust{padding:14px;grid-template-columns:1fr;gap:10px}
  .trust-card{min-height:82px;padding:15px;display:flex;align-items:center;gap:12px}
  .trust-card i{margin-bottom:0;flex:0 0 42px}
  .trust-card span{font-size:13px}
  .notice{padding:18px;font-size:14px}
  .float-cta{
    display:flex;
    position:fixed;
    left:14px;
    right:14px;
    bottom:14px;
    z-index:60;
    height:54px;
    border-radius:17px;
    align-items:center;
    justify-content:center;
    color:#fff;
    background:linear-gradient(135deg,#2563eb,#3b82f6);
    font-size:19px;
    font-weight:950;
    box-shadow:0 16px 36px rgba(37,99,235,.35);
  }
}