:root{
  --blue:#2f6bff; --dark:#1b2436; --muted:#6b7891; --line:#e6eaf2; --bg:#fff;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,sans-serif;color:var(--dark);background:var(--bg);line-height:1.75}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
a{color:var(--blue);text-decoration:none}

.hero{background:linear-gradient(135deg,#1b2b52 0%,#2f6bff 100%);color:#fff;padding:0 0 76px}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{font-size:19px;font-weight:700;letter-spacing:.5px}
.nav a{color:rgba(255,255,255,.88);margin-left:26px;font-size:14px}
.nav a:hover{color:#fff}
.btn-mini{background:#fff;color:var(--blue)!important;padding:7px 16px;border-radius:20px;font-weight:600}
.hero-inner{padding-top:70px}
.hero h1{font-size:44px;margin:0 0 12px;letter-spacing:1px}
.slogan{font-size:20px;opacity:.95;margin:0 0 18px}
.intro-lead{opacity:.85;max-width:640px;margin:0 0 30px}
.hero .btn{display:inline-block;background:#fff;color:var(--blue);padding:13px 34px;border-radius:30px;font-weight:700;margin:0}

.section{padding:70px 0}
.section.alt{background:#f7f9fc}
.sec-title{font-size:28px;text-align:center;margin:0 0 34px;position:relative;padding-bottom:14px}
.sec-title:after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:46px;height:3px;background:var(--blue);border-radius:2px}
.card-text{background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px 34px;color:#4a5568;font-size:15px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.biz{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 26px;color:#5b6880;font-size:14px}
.biz:hover{box-shadow:0 8px 26px rgba(30,50,100,.08);transform:translateY(-3px);transition:.25s}
.biz-icon{width:52px;height:52px;border-radius:12px;background:rgba(47,107,255,.1);color:var(--blue);font-size:24px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.biz h3{margin:0 0 6px;font-size:18px;color:var(--dark)}
.biz-sub{color:var(--blue);font-size:13px;margin:0 0 10px}
.muted{color:var(--muted)}

.contact-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 30px;max-width:760px;margin:0 auto}
.c-item{display:flex;padding:16px 0;border-bottom:1px dashed var(--line);font-size:15px}
.c-item:last-child{border-bottom:0}
.c-k{width:110px;flex:none;color:var(--muted);font-size:14px}
.c-v{flex:1;color:var(--dark);word-break:break-all}

.footer{background:#1b2436;color:#9aa6bd;padding:26px 0;text-align:center;font-size:13px}
.f-copy{margin:0 0 6px}
.f-icp{margin:0}
.f-icp a{color:#9aa6bd;text-decoration:none}
.f-icp a:hover{color:#fff}

@media(max-width:760px){
  .nav nav a:not(.btn-mini){display:none}
  .hero h1{font-size:30px}
  .c-item{flex-direction:column}.c-k{width:auto}
}