/*
Theme Name: Chengjian Hardware
Version: 1.3
*/
/* Chengjian Hardware preview — shared */
:root{--bg:#F4F6F8;--text:#1A2332;--muted:#5B6573;--accent:#2F5D8C;--card:#fff;--line:#D5DCE3;--deep:#1A2332;--warn:#B42318}
*{box-sizing:border-box}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",Inter,"Segoe UI",sans-serif;color:var(--text);background:var(--bg)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.mock-bar{background:#111;color:#9aa;font-size:12px;padding:8px 16px;text-align:center}
header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{font-weight:700;letter-spacing:.02em}
.nav-links{display:flex;gap:20px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.nav-links a{color:var(--muted)}
.nav-links a:hover{color:var(--accent)}
.lang{border:1px solid var(--line);border-radius:4px;overflow:hidden;font-size:12px;display:inline-flex;flex-shrink:0}
.lang a{display:inline-block;padding:4px 10px;color:var(--text)}
.lang .on{background:var(--accent);color:#fff}
.btn{display:inline-block;padding:10px 18px;border-radius:5px;font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{filter:brightness(1.05);color:#fff}
.btn-ghost{border-color:var(--accent);color:var(--accent);background:transparent}
.hero{padding:72px 0 56px}
.hero h1{font-size:40px;line-height:1.25;margin:0 0 16px;max-width:18em}
.hero .sub{color:var(--muted);font-size:17px;margin:0 0 28px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.section{padding:56px 0}
.section h2{font-size:22px;margin:0 0 8px}
.section .lead{color:var(--muted);margin:0 0 28px;font-size:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:22px}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:14px}
.deep{background:var(--deep);color:#fff;padding:40px 0}
.deep .lead{color:#aab}
.deep h2{margin:0 0 8px;font-size:22px}
.steps{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.step{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:10px 14px;border-radius:4px;font-size:13px}
.arrow{opacity:.5}
.cases{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.case{display:grid;grid-template-rows:160px auto;background:var(--card);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.ph{background:linear-gradient(135deg,#d8dee6,#eef1f5);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px}
.case .body{padding:20px}
.case h3{margin:0 0 10px;font-size:17px}
.case p{margin:0;color:var(--muted);font-size:14px}
.trust{display:flex;flex-wrap:wrap;gap:10px}
.chip{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13px}
.chip.tbd{border-style:dashed;color:var(--warn)}
.principles{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form.rfq{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.rfq label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
form.rfq input,form.rfq textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:4px;font:inherit;background:#fff}
form.rfq .full{grid-column:1/-1}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:13px}
footer .row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media(max-width:800px){
  .hero h1{font-size:28px}
  .grid3,.cases,.principles,form.rfq{grid-template-columns:1fr}
  .nav{height:auto;min-height:64px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  .nav-links{display:flex;order:3;width:100%;gap:8px 16px;font-size:13px}
}

.page-hero{padding:48px 0 24px;border-bottom:1px solid var(--line);background:var(--card)}
.page-hero h1{font-size:28px;margin:0 0 8px}
.page-hero .sub{color:var(--muted);margin:0;font-size:15px}
.note-tbd{font-size:13px;color:var(--warn);margin:12px 0 0}
.list-plain{margin:0;padding-left:1.2em;color:var(--muted);font-size:14px}
.list-plain li{margin:6px 0}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.step-light{background:#fff;border:1px solid var(--line);color:var(--text);padding:10px 14px;border-radius:4px;font-size:13px}
@media(max-width:800px){.contact-grid{grid-template-columns:1fr}}

.ph{padding:0;overflow:hidden}
.ph img{width:100%;height:100%;object-fit:cover;display:block}
.ph .cap{position:absolute;left:0;right:0;bottom:0;padding:8px 10px;background:rgba(26,35,50,.72);color:#fff;font-size:12px}
.ph-wrap{position:relative;height:160px;background:linear-gradient(135deg,#d8dee6,#eef1f5)}
.case{grid-template-rows:160px auto}
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.gallery .shot{background:var(--card);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.gallery .shot img{width:100%;height:180px;object-fit:cover;display:block}
.gallery .shot p{margin:0;padding:12px 14px;font-size:13px;color:var(--muted)}
@media(max-width:800px){.gallery{grid-template-columns:1fr}}

.mock-bar{display:none}
.note-tbd,.chip.tbd{display:none}
.skip-link{position:absolute;left:-9999px;top:8px;background:#fff;padding:8px;z-index:100}
.skip-link:focus{left:8px}
.lang a[aria-current="page"]{background:var(--accent);color:#fff}