:root{
  --gold:#d4af37;--gold-soft:#e8c66b;--brown:#3a2a14;--deep:#241808;
  --cream:#f3ead6;--muted:#9c8c6c;--warn:#c9745a;--card:rgba(212,175,55,.07);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--cream);background:linear-gradient(160deg,#241808,#3a2a14 45%,#4a3415 100%);
  line-height:1.85;font-size:16px}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
a{color:var(--gold-soft);text-decoration:none}

/* 导航 */
header.nav{position:sticky;top:0;z-index:30;background:rgba(36,24,8,.85);
  backdrop-filter:blur(10px);border-bottom:1px solid rgba(212,175,55,.2)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{font-size:20px;font-weight:800;letter-spacing:2px;color:var(--gold)}
.nav-links a{color:var(--cream);margin-left:26px;font-size:15px;opacity:.85}
.nav-links a:hover{color:var(--gold-soft);opacity:1}
.btn-gold{background:linear-gradient(90deg,var(--gold),var(--gold-soft));
  color:#241808!important;padding:9px 20px;border-radius:999px;font-weight:700;
  box-shadow:0 6px 18px rgba(212,175,55,.3)}
.btn-gold:hover{filter:brightness(1.06)}

/* 首屏 */
.hero{padding:90px 0 70px;text-align:center}
.hero h1{font-size:44px;line-height:1.3;font-weight:800;
  background:linear-gradient(90deg,#e8c66b,#d4af37);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{margin-top:16px;font-size:19px;color:#e7dcc4}
.hero .pos{margin-top:10px;font-size:15px;color:var(--gold-soft);letter-spacing:1px}

/* 通用区块 */
section{padding:64px 0;border-top:1px solid rgba(212,175,55,.12)}
.eyebrow{font-size:13px;letter-spacing:4px;color:var(--gold-soft);text-transform:uppercase}
h2.sec{font-size:28px;color:var(--cream);margin:8px 0 22px;font-weight:700}
.lead{color:#ddd0b4;max-width:720px;font-size:16px}

/* 服务四卡 */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:26px}
.card{background:var(--card);border:1px solid rgba(212,175,55,.22);border-radius:14px;
  padding:24px 18px;text-align:center;transition:.3s}
.card:hover{transform:translateY(-5px);border-color:var(--gold)}
.card .ico{font-size:30px;margin-bottom:10px}
.card h3{color:var(--gold-soft);font-size:16px;margin-bottom:8px}
.card p{font-size:13.5px;color:#cbb98f}

/* 信任数据条 */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:rgba(212,175,55,.2);border-radius:14px;overflow:hidden;margin-top:30px}
.stat{background:rgba(36,24,8,.6);padding:28px 10px;text-align:center}
.stat b{display:block;font-size:34px;color:var(--gold);font-weight:800}
.stat span{font-size:14px;color:var(--muted)}

/* 关于页时间线 */
.tl{margin-top:20px;border-left:2px solid rgba(212,175,55,.3);padding-left:24px}
.tl .item{position:relative;padding:0 0 22px}
.tl .item:before{content:"";position:absolute;left:-31px;top:6px;width:10px;height:10px;
  border-radius:50%;background:var(--gold)}
.tl .item b{color:var(--gold-soft)}

/* 合规 / 不做什么 */
.dont li{list-style:none;padding:10px 0 10px 28px;position:relative;color:#e7dcc4;
  border-bottom:1px dashed rgba(212,175,55,.15)}
.dont li:before{content:"✕";color:var(--warn);position:absolute;left:0}
.legal{margin-top:22px;background:rgba(201,116,90,.08);border:1px solid rgba(201,116,90,.25);
  border-radius:12px;padding:20px;font-size:14px;color:#cbb98f}

/* 案例卡 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.case{background:var(--card);border:1px solid rgba(212,175,55,.2);border-radius:14px;padding:22px}
.case h4{color:var(--gold-soft);margin-bottom:8px}
.case p{font-size:14px;color:#cbb98f}
.empty{text-align:center;color:var(--muted);padding:40px;border:1px dashed rgba(212,175,55,.25);border-radius:14px}

/* 联系页 */
.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:26px}
.qr{width:180px;height:180px;margin:0 auto 14px;background:#f3ead6;border-radius:14px;
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;text-align:center}
.contact-box p{margin:8px 0;color:#ddd0b4}
.contact-box b{color:var(--gold-soft)}

footer{margin-top:40px;padding:34px 0;text-align:center;color:var(--muted);font-size:13px;
  border-top:1px solid rgba(212,175,55,.15)}
@media(max-width:768px){
  .grid4,.grid3,.stats,.contact-box{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}.nav-links{display:none}
}
@media(max-width:480px){.grid4,.grid3,.stats,.contact-box{grid-template-columns:1fr}}