:root{--red:#d8232a;--red2:#b51a20;--ink:#0c1420;--ink2:#16243a;--steel:#5c6b7f;--mist:#f4f6f9;--line:#e4e9f0;--gold:#cda23f;}
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:1140px;margin:0 auto;padding:0 22px}
  .btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(150deg,var(--red),var(--red2));color:#fff;font-weight:700;padding:13px 26px;border-radius:10px;border:none;cursor:pointer;font-size:16px;box-shadow:0 8px 20px rgba(216,35,42,.28)}
  .btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}
  .btn:hover{filter:brightness(1.05)}
  /* header */
  header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;gap:24px;height:68px}
  .nav img{height:34px}
  .nav .links{display:flex;gap:24px;margin-left:auto;font-weight:600;font-size:15px;color:var(--ink2)}
  .nav .links a:hover{color:var(--red)}
  .nav .cta{margin-left:8px}
  @media(max-width:820px){.nav .links{display:none}}
  /* hero */
  .hero{background:linear-gradient(140deg,#0c1420,#15273f 60%,#0c1420);color:#fff;padding:74px 0 84px;position:relative;overflow:hidden}
  .hero h1{font-size:46px;line-height:1.1;font-weight:800;letter-spacing:-.01em;max-width:760px}
  .hero h1 em{font-style:normal;color:var(--gold)}
  .hero p.sub{font-size:20px;color:#c6d3e1;margin-top:20px;max-width:640px}
  .hero .pills{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
  .pill{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:9px 18px;font-weight:600;font-size:15px}
  .hero .cta-row{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
  .eyebrow{color:var(--gold);font-weight:700;letter-spacing:.22em;text-transform:uppercase;font-size:14px}
  /* sections */
  section{padding:70px 0}
  .sec-h{font-size:34px;font-weight:800;letter-spacing:-.01em;margin-top:10px}
  .sec-lead{color:var(--steel);font-size:18px;margin-top:12px;max-width:720px}
  .center{text-align:center}.center .sec-lead{margin:12px auto 0}
  /* value cards */
  .grid{display:grid;gap:22px;margin-top:40px}
  .g4{grid-template-columns:repeat(4,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
  @media(max-width:900px){.g4,.g3{grid-template-columns:1fr 1fr}}
  @media(max-width:560px){.g4,.g3,.g2{grid-template-columns:1fr}}
  .card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:0 10px 30px rgba(15,30,55,.05)}
  .card .ic{width:46px;height:46px;border-radius:11px;background:linear-gradient(150deg,var(--ink2),#22364f);color:var(--gold);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;margin-bottom:14px}
  .card h3{font-size:19px;font-weight:750;margin-bottom:8px}
  .card p{color:#46566a;font-size:15px}
  /* products */
  .pcard{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 8px 22px rgba(15,30,55,.06)}
  .pcard .img{height:180px;background-size:cover;background-position:center;background-color:#eef0f3}
  .pcard .cap{padding:16px 18px}
  .pcard .cap h4{font-size:17px;font-weight:750}
  .pcard .cap p{color:var(--steel);font-size:13.5px;margin-top:4px}
  .mist{background:var(--mist)}
  /* stats */
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
  @media(max-width:680px){.stats{grid-template-columns:1fr 1fr}}
  .stat{text-align:center}
  .stat .n{font-size:42px;font-weight:800;color:var(--red)}
  .stat .l{color:var(--steel);font-weight:600;margin-top:4px}
  /* process */
  .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:40px}
  @media(max-width:760px){.steps{grid-template-columns:1fr 1fr}}
  .step{text-align:center}
  .step .num{width:52px;height:52px;border-radius:50%;background:linear-gradient(150deg,var(--red),var(--red2));color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
  .step h4{font-size:17px;font-weight:750}.step p{color:var(--steel);font-size:14px;margin-top:6px}
  /* RFQ */
  .rfq{background:linear-gradient(140deg,#0c1420,#15273f);color:#fff}
  .rfq .box{background:#fff;color:var(--ink);border-radius:18px;padding:34px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
  .field{margin-bottom:16px}
  .field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
  .field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;font:inherit;outline:none}
  .field input:focus,.field textarea:focus{border-color:var(--red)}
  .frow{display:flex;gap:16px}.frow .field{flex:1}
  @media(max-width:560px){.frow{flex-direction:column;gap:0}}
  /* footer */
  footer{background:#0c1420;color:#9fb2c6;padding:46px 0;font-size:14px}
  footer .cols{display:flex;gap:50px;flex-wrap:wrap}
  footer h5{color:#fff;font-size:15px;margin-bottom:12px}
  footer a{display:block;color:#9fb2c6;margin-bottom:7px}
  footer a:hover{color:#fff}
  .copy{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;color:#6f8499}

/* ===== added for multi-page English site ===== */
.lang{display:flex;align-items:center;gap:6px;margin-left:18px;font-size:14px;font-weight:700}
.lang a,.lang b{padding:4px 9px;border-radius:7px;line-height:1}
.lang a{color:var(--steel);border:1px solid var(--line)}
.lang a:hover{color:var(--red);border-color:var(--red)}
.lang b{background:var(--ink);color:#fff}
@media(max-width:820px){.lang{margin-left:auto}}
.pagehd{background:linear-gradient(140deg,#0c1420,#15273f 60%,#0c1420);color:#fff;padding:52px 0 44px}
.pagehd h1{font-size:36px;font-weight:800;letter-spacing:-.01em}
.pagehd .bc{margin-top:10px;color:#9fb2c6;font-size:14px}
.pagehd .bc a{color:#c6d3e1}
.pagehd .bc a:hover{color:#fff}
.sec{padding:60px 0}
.sec.mist{background:var(--mist)}
.article{max-width:860px;margin:0 auto;font-size:17px;color:#2b3648}
.article h2{font-size:26px;margin:28px 0 12px;color:var(--ink)}
.article p{margin:14px 0}
.article strong{color:var(--ink)}
.cinfo{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:26px}
.cinfo .c{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.cinfo .ic{width:42px;height:42px;flex:none;border-radius:10px;background:var(--mist);display:flex;align-items:center;justify-content:center;font-size:20px}
.cinfo .k{font-size:13px;color:var(--steel);font-weight:600}
.cinfo .v{font-size:17px;font-weight:700;margin-top:3px;word-break:break-word}
.form{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
.form .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.form label{display:block;font-size:14px;font-weight:700;color:var(--ink2);margin:14px 0 6px}
.form input,.form select,.form textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 13px;font-size:15px;font-family:inherit}
.form textarea{min-height:110px;resize:vertical}
.form .hint{font-size:13px;color:var(--steel);margin-top:6px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px;margin-top:28px}
.steps .s{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.steps .n{width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}