:root{
  --red:#e20d18;
  --red-dark:#b90b13;
  --ink:#171717;
  --muted:#6b6b6b;
  --bg:#f7f6f3;
  --card:#ffffff;
  --line:#e6e2dc;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.topbar{background:var(--ink);color:#fff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;gap:20px;padding:9px 0}
header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,246,243,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)
}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:13px}
.brand img{width:48px;height:48px;object-fit:cover;border-radius:8px}
.brand-title{font-size:21px;font-weight:900;letter-spacing:.5px}
.brand-sub{font-size:10px;letter-spacing:2.2px;color:var(--muted);margin-top:-2px}
.navlinks{display:flex;align-items:center;gap:26px;font-size:14px}
.navlinks a:hover,.navlinks a.active{color:var(--red)}
.nav-cta{padding:10px 17px;background:var(--red);color:#fff;border-radius:4px;font-weight:700}
.hero{padding:84px 0 76px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}
.kicker{color:var(--red);font-size:13px;font-weight:800;letter-spacing:2.8px;text-transform:uppercase}
h1{font-size:56px;line-height:1.12;margin:17px 0 22px;letter-spacing:-1px}
.hero p{font-size:18px;color:var(--muted);max-width:700px}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-block;padding:12px 21px;border:1px solid var(--ink);border-radius:3px;font-weight:800;font-size:14px}
.btn.primary{background:var(--red);border-color:var(--red);color:#fff}
.hero-card{
  background:var(--red);
  min-height:430px;
  border-radius:8px;
  padding:32px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  position:relative;
  overflow:hidden;
}
.hero-card:before,.hero-card:after{
  content:"";position:absolute;border:1px solid rgba(255,255,255,.4);transform:rotate(-8deg)
}
.hero-card:before{width:285px;height:210px;right:34px;top:70px}
.hero-card:after{width:225px;height:105px;left:40px;bottom:54px;transform:rotate(8deg)}
.hero-logo{width:110px;border-radius:12px;position:relative;z-index:2}
.hero-card .caption{position:relative;z-index:2;color:#fff}
.hero-card .caption strong{font-size:24px;display:block}
.hero-card .caption span{font-size:12px;letter-spacing:2px;opacity:.85}
section{padding:74px 0}
.section-title{display:flex;justify-content:space-between;gap:32px;align-items:flex-end;margin-bottom:30px}
.section-title h2{font-size:34px;margin:0}
.section-title p{margin:0;max-width:650px;color:var(--muted)}
.services{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.service{background:var(--card);border:1px solid var(--line);padding:24px;min-height:180px}
.service b{display:block;color:var(--red);font-size:12px;letter-spacing:1.6px}
.service h3{font-size:19px;margin:20px 0 7px}
.service p{font-size:13px;color:var(--muted);margin:0}
.categories{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cat{
  background:#fff;border:1px solid var(--line);min-height:215px;padding:26px;
  position:relative;overflow:hidden
}
.cat:after{
  content:"";position:absolute;width:150px;height:95px;border:2px solid rgba(226,13,24,.22);
  right:-18px;bottom:-12px;transform:rotate(-8deg)
}
.cat span{font-size:11px;color:var(--red);letter-spacing:1.8px;font-weight:800}
.cat h3{margin:48px 0 4px;font-size:21px}
.cat p{margin:0;color:var(--muted);font-size:13px}
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.step{background:#fff;border-top:3px solid var(--red);padding:22px 18px;min-height:130px}
.step b{color:var(--red);font-size:12px}
.step span{display:block;margin-top:10px;font-weight:800}
.step small{display:block;color:var(--muted);margin-top:5px}
.about-block{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}
.about-logo{background:var(--red);padding:30px;border-radius:8px}
.about-logo img{border-radius:6px}
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px}
.fact{background:#fff;border:1px solid var(--line);padding:15px 17px}
.fact b{display:block;font-size:12px;color:var(--muted);font-weight:600}
.fact span{font-weight:800}
.contact-panel{
  background:var(--ink);color:#fff;border-radius:8px;padding:38px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px
}
.contact-panel p{color:#bbb}
.contact-list{display:grid;gap:12px}
.contact-row{border-bottom:1px solid #333;padding:10px 0}
.contact-row b{display:block;font-size:12px;color:#aaa}
.contact-row span{font-size:18px;font-weight:800}
.page-hero{padding:64px 0 50px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:42px;margin-bottom:14px}
.page-content{padding:56px 0}
.prose{max-width:850px}
.prose h2{margin-top:42px}
.prose p,.prose li{color:#4f4f4f}
.info-table{width:100%;border-collapse:collapse;background:#fff}
.info-table th,.info-table td{padding:15px 17px;border:1px solid var(--line);text-align:left;vertical-align:top}
.info-table th{width:180px;background:#faf9f7}
footer{background:#0d0d0d;color:#999;padding:34px 0;margin-top:0}
.footer-grid{display:flex;justify-content:space-between;gap:30px;align-items:center}
.footer-brand{color:#fff;font-weight:900}
@media(max-width:980px){
  .navlinks{display:none}
  .hero-grid,.about-block,.contact-panel{grid-template-columns:1fr}
  h1{font-size:44px}
  .services{grid-template-columns:repeat(2,1fr)}
  .categories{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:600px){
  .container{width:min(100% - 28px,1180px)}
  .topbar .container{flex-direction:column;gap:0}
  h1{font-size:36px}
  .hero{padding:58px 0}
  .hero-card{min-height:350px}
  .services,.categories,.process,.facts{grid-template-columns:1fr}
  .section-title{align-items:flex-start;flex-direction:column}
  .footer-grid{align-items:flex-start;flex-direction:column}
}