:root{--brand:#e97918;--brand2:#a94805;--ink:#142032;--muted:#627083;--soft:#fff8f0;--line:#f1dfca;--card:#fff;--max:1180px;--shadow:0 18px 46px rgba(98,52,10,.10);--shadow2:0 10px 26px rgba(98,52,10,.08);--radius:24px}*{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;color:var(--ink);background:#fff;line-height:1.75;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(241,223,202,.9)}.header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo{display:flex;align-items:center;gap:12px;font-weight:900;font-size:19px;white-space:nowrap}.logo-mark{width:34px;height:34px;border-radius:14px;background:linear-gradient(135deg,#e97918,#ffbd70);box-shadow:0 8px 22px rgba(233,121,24,.25);position:relative}.logo-mark:after{content:"";position:absolute;left:9px;right:9px;top:7px;bottom:7px;border-radius:9px;background:#fff;transform:rotate(45deg)}.nav{display:flex;gap:25px;align-items:center;font-size:15px;font-weight:800;color:#26354a}.nav a:hover{color:var(--brand)}.hero{position:relative;overflow:hidden;padding:78px 0 72px;background:radial-gradient(circle at 76% 20%,rgba(233,121,24,.16),transparent 30%),linear-gradient(135deg,#fffaf4 0,#fff 52%,#fff3e3 100%)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(233,121,24,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(233,121,24,.045) 1px,transparent 1px);background-size:52px 52px;pointer-events:none}.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}.kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid #f0d5b4;background:#fff;border-radius:999px;color:var(--brand2);font-size:14px;font-weight:900;margin-bottom:18px}.hero h1{margin:0 0 22px;font-size:46px;line-height:1.18;letter-spacing:-.7px;color:#101b2c}.hero p{margin:0;color:#586679;font-size:17px;max-width:650px}.actions{display:flex;align-items:center;gap:14px;margin:32px 0 14px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;border-radius:999px;background:linear-gradient(135deg,#e97918,#c75b08);color:#fff;font-weight:900;box-shadow:0 12px 28px rgba(233,121,24,.26);transition:.2s}.btn:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(233,121,24,.34)}.btn.secondary{background:linear-gradient(135deg,#16253c,#2c466e);box-shadow:0 12px 28px rgba(20,32,50,.18);margin-top:18px}.helper{display:flex;gap:8px;align-items:center;color:#687688;font-size:14px}.hero-panel{min-height:430px;position:relative;display:grid;place-items:center}.scan-card{width:310px;border-radius:30px;background:#fff;border:1px solid #f1dfca;box-shadow:0 34px 80px rgba(98,52,10,.18);padding:26px;position:relative;z-index:2}.scan-top{display:flex;justify-content:space-between;align-items:center;font-weight:900;color:#25344a}.scan-top b{color:#15935b}.scan-ring{width:158px;height:158px;border-radius:50%;background:conic-gradient(#e97918 0 88%,#f4e5d2 88% 100%);display:grid;place-items:center;margin:28px auto;position:relative}.scan-ring:before{content:"";position:absolute;inset:14px;background:#fff;border-radius:50%}.scan-ring span{position:relative;font-size:34px;font-weight:900;color:#e97918}.scan-list{display:grid;gap:12px}.scan-list div{background:#fff8f0;border:1px solid #f1dfca;border-radius:14px;padding:12px 14px;color:#5d6a7a;font-size:14px}.scan-list b{display:inline-block;width:9px;height:9px;background:#15935b;border-radius:50%;margin-right:8px}.mini-card{position:absolute;background:#fff;border:1px solid #f1dfca;border-radius:18px;box-shadow:var(--shadow2);padding:16px 18px;font-weight:900;color:#29384e}.mini-card.left{left:28px;top:96px}.mini-card.right{right:24px;bottom:88px}.quick-strip{margin-top:-30px;position:relative;z-index:4}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quick-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow2);padding:24px}.quick-card strong{display:block;font-size:18px;margin-bottom:6px}.quick-card p{margin:0;color:#627083;font-size:14px}.section{padding:66px 0}.section.soft{background:linear-gradient(180deg,#fff,#fff8f0)}.section-title{text-align:center;margin:0 auto 32px;max-width:820px}.section-title h2{margin:0 0 12px;font-size:30px;line-height:1.3}.section-title p{margin:0;color:#667486}.section-title:after{content:"";display:block;width:46px;height:4px;border-radius:999px;background:linear-gradient(90deg,#e97918,#ffbd70);margin:18px auto 0}.explain{max-width:940px;margin:0 auto;text-align:center;color:#526073}.explain p{margin:0 0 14px}.verify-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.verify-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow2);padding:26px 22px}.verify-card span{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:14px;background:#fff1df;color:#c75b08;font-weight:900;margin-bottom:16px}.verify-card h3{margin:0 0 8px;font-size:18px}.verify-card p{margin:0;color:#637184;font-size:14px}.device-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.device-card{background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:34px;position:relative;overflow:hidden}.device-card:before{content:"";position:absolute;right:-42px;top:-42px;width:150px;height:150px;border-radius:50%;background:rgba(233,121,24,.08)}.device-icon{display:inline-flex;padding:7px 12px;background:#fff1df;color:#a94805;border-radius:999px;font-weight:900;font-size:13px;margin-bottom:14px}.device-card h3{margin:0 0 10px;font-size:21px}.device-card p{margin:0;color:#5e6c80}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic-grid div{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow2);padding:24px}.topic-grid h3{margin:0 0 8px;font-size:18px}.topic-grid p{margin:0;color:#637184;font-size:14px}.safety-panel{display:grid;grid-template-columns:1fr .9fr;gap:28px;align-items:center;background:linear-gradient(135deg,#142032,#2c466e);border-radius:30px;color:#fff;padding:40px;box-shadow:0 22px 54px rgba(20,32,50,.22)}.safety-panel h2{margin:0 0 12px;font-size:30px}.safety-panel p{margin:0;color:#dce8f7}.safety-panel ul{margin:0;padding:0;list-style:none;display:grid;gap:12px}.safety-panel li{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:14px 16px;font-weight:800}.faq{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow2);overflow:hidden}.faq-item{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:20px 24px;border-bottom:1px solid #f2e5d6;align-items:start}.faq-item:last-child{border-bottom:0}.q{width:28px;height:28px;border-radius:50%;background:#fff1df;color:#c75b08;font-weight:900;display:grid;place-items:center}.faq-item h3{margin:0 0 6px;font-size:17px}.faq-item p{margin:0;color:#59687a;font-size:14px}.bottom-cta{background:linear-gradient(135deg,#fff1df,#fffaf4);border:1px solid #f0d5b4;border-radius:24px;padding:24px;display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:26px}.bottom-cta strong{font-size:20px}.bottom-cta span{display:block;color:#637184;font-size:14px;margin-top:4px}.site-footer{background:#142032;color:#dbe7ff;text-align:center;padding:36px 0;font-size:14px}.site-footer p{margin:0 auto 10px;max-width:940px;color:#cbd8e8}.site-footer .copy{color:#fff;margin-top:14px;font-weight:800}section[id]{scroll-margin-top:96px}@media(max-width:960px){section[id]{scroll-margin-top:76px}.nav{display:none}.header-inner{height:66px}.hero{padding:48px 0}.hero-grid,.device-grid,.safety-panel{grid-template-columns:1fr;gap:30px}.hero h1{font-size:34px;line-height:1.25}.hero p{font-size:15px}.hero-panel{min-height:340px}.scan-card{width:min(310px,100%)}.mini-card.left{left:0;top:40px}.mini-card.right{right:0;bottom:34px}.quick-grid,.verify-grid,.topic-grid{grid-template-columns:1fr}.section{padding:48px 0}.safety-panel,.bottom-cta{text-align:center}.bottom-cta{flex-direction:column}.container{width:min(var(--max),calc(100% - 28px))}}@media(max-width:520px){section[id]{scroll-margin-top:70px}.hero{padding:42px 0}.hero h1{font-size:30px}.hero-grid{gap:24px}.quick-card,.verify-card,.device-card,.topic-grid div{padding:22px 18px}.bottom-cta{padding:22px 18px}.bottom-cta strong{font-size:18px}.mini-card{display:none}}
:root{
  --brand:#176bff;
  --brand2:#0b4ac7;
  --soft:#f5f9ff;
  --line:#dbe8ff;
  --shadow:0 18px 46px rgba(23,107,255,.10);
  --shadow2:0 10px 26px rgba(23,107,255,.08);
}

.site-header{
  border-bottom:1px solid rgba(219,232,255,.95);
}

.logo-mark{
  background:linear-gradient(135deg,#176bff,#61b6ff);
  box-shadow:0 8px 22px rgba(23,107,255,.22);
}

.hero{
  background:radial-gradient(circle at 76% 20%,rgba(23,107,255,.13),transparent 30%),linear-gradient(135deg,#f7fbff 0,#fff 52%,#edf6ff 100%);
}

.hero:before{
  background-image:linear-gradient(rgba(23,107,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(23,107,255,.04) 1px,transparent 1px);
}

.kicker{
  border-color:#d5e5ff;
  color:#0b4ac7;
}

.btn{
  background:linear-gradient(135deg,#176bff,#0b4ac7);
  box-shadow:0 12px 30px rgba(23,107,255,.22);
}

.btn.green{
  background:linear-gradient(135deg,#0aa37f,#06745f);
  box-shadow:0 12px 30px rgba(10,163,127,.20);
}

.section.soft{
  background:#f5f9ff;
}

.section-title:after,
.section-title h2:after{
  background:linear-gradient(90deg,#176bff,#61b6ff);
}

.trust-card,
.quick-card,
.info-card,
.step-card,
.platform-card,
.notice-card,
.faq,
.faq-item{
  border-color:#dbe8ff;
  box-shadow:0 10px 28px rgba(23,107,255,.07);
}

.icon,
.q{
  background:#eaf3ff;
  color:#176bff;
}

.step-num{
  background:linear-gradient(135deg,#176bff,#0b4ac7);
}

.scan-ring{
  background:conic-gradient(#176bff 0 88%,#dbe8ff 88% 100%);
}

.scan-ring span{
  font-size:30px;
  color:#176bff;
  letter-spacing:1px;
}

.scan-list div,
.notice-list div{
  background:#f5f9ff;
  border-color:#dbe8ff;
}

.mini-card{
  border-color:#dbe8ff;
}

.security-band{
  background:linear-gradient(135deg,#071b3d,#0b4ac7 55%,#176bff);
}

.bottom-cta{
  background:linear-gradient(135deg,#eef6ff,#f8fbff);
  border-color:#d5e5ff;
}

.site-footer{
  background:#071b3d;
}