/* ==========================================================================
   江西省元昌工业有限公司 — 站点样式表
   Jiangxi Yuanchang Industry Co., Ltd — site stylesheet
   Single file, no external requests. Palette drawn from the company's own
   amber logo mark, paired with an industrial ink-navy and lab whites.
   ========================================================================== */

:root{
  --ink:#152232;          /* deep industrial navy — headings, header */
  --ink-soft:#33445a;     /* body-ish navy */
  --slate:#5a6a7d;        /* secondary text */
  --line:#e3e7ec;         /* hairlines */
  --paper:#ffffff;        /* page */
  --mist:#f5f7f9;         /* section tint */
  --amber:#e8820c;        /* brand accent (from logo) */
  --amber-deep:#c96a00;   /* hover / stronger accent */
  --amber-wash:#fdf3e6;   /* faint accent fill */
  --maxw:1080px;
  --radius:10px;
  --shadow:0 1px 2px rgba(21,34,50,.05), 0 6px 20px rgba(21,34,50,.06);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink-soft);
  background:var(--paper);
  line-height:1.75;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--amber-deep);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:12px 22px;
  display:flex;align-items:center;gap:16px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand img{height:38px;width:auto;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-cn{font-weight:700;color:var(--ink);font-size:16px;letter-spacing:.3px;white-space:nowrap}
.brand-en{font-size:11px;color:var(--slate);letter-spacing:.4px;white-space:nowrap;text-transform:uppercase}

.nav{margin-left:auto;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav a{
  color:var(--ink-soft);font-size:15px;font-weight:500;
  padding:8px 12px;border-radius:7px;white-space:nowrap;
}
.nav a:hover{background:var(--mist);text-decoration:none;color:var(--ink)}
.nav a.active{color:var(--amber-deep);background:var(--amber-wash)}
.lang{
  margin-left:6px;font-size:13px;font-weight:600;
  border:1px solid var(--line);border-radius:7px;padding:6px 11px;
  color:var(--ink-soft);white-space:nowrap;
}
.lang:hover{border-color:var(--amber);color:var(--amber-deep);text-decoration:none;background:var(--amber-wash)}

/* mobile nav toggle */
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:7px;padding:8px 10px;cursor:pointer;color:var(--ink)}
.nav-toggle svg{display:block}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 380px at 82% -8%, rgba(232,130,12,.10), transparent 60%),
    linear-gradient(180deg,#fbfcfd 0%, #ffffff 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-inner{
  max-width:var(--maxw);margin:0 auto;padding:52px 22px 48px;
  display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:stretch;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--amber-deep);margin:0 0 18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--amber)}
.hero h1{
  font-size:clamp(28px,4.4vw,44px);line-height:1.2;margin:0 0 18px;
  color:var(--ink);font-weight:800;letter-spacing:-.3px;
}
.hero p.lead{font-size:17.5px;color:var(--ink-soft);margin:0 0 26px;max-width:36ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}

/* element chips — the site signature: what the company actually makes */
.elements{display:flex;gap:9px;flex-wrap:wrap;margin-top:30px}
.el{
  --c:var(--amber);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:9px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
  line-height:1;
}
.el b{font-size:17px;font-weight:800;color:var(--c)}
.el span{font-size:9px;color:var(--slate);margin-top:3px;letter-spacing:.2px}
.el.fe{--c:#d9642a}.el.zn{--c:#2f9e6f}.el.cu{--c:#1f7ab0}
.el.mn{--c:#7aa72b}.el.cr{--c:#b83b6b}.el.ca{--c:#8a5cc0}

/* capability strip under hero — adds substance, no images needed */
.cap-strip{border-top:1px solid var(--line);background:#fff}
.cap-strip .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  padding:0;
}
.cap{padding:22px 26px;border-left:1px solid var(--line)}
.cap:first-child{border-left:none;padding-left:22px}
.cap .k{font-size:13px;font-weight:700;color:var(--amber-deep);letter-spacing:.3px;margin:0 0 4px}
.cap .v{font-size:14px;color:var(--slate);margin:0;line-height:1.55}

.hero-figure{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);padding:22px;
}
.hero-figure img{border-radius:8px;margin:0 auto}
.hero-figure figcaption{
  text-align:center;font-size:13px;color:var(--slate);margin-top:12px;
}

/* hero photo variant — factory image at natural ratio */
.hero-inner > div:first-child{display:flex;flex-direction:column;justify-content:center}
.hero-photo{
  position:relative;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  align-self:center;
}
.hero-photo img{width:100%;height:auto;display:block}
.hero-photo figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 20px 16px;font-size:13.5px;color:#fff;font-weight:500;
  background:linear-gradient(180deg,transparent,rgba(12,22,36,.72));
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:9px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.15s;
}
.btn-primary{background:var(--amber);color:#fff}
.btn-primary:hover{background:var(--amber-deep);text-decoration:none;color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber-deep);text-decoration:none;background:var(--amber-wash)}

/* ---------- Sections ---------- */
section{padding:58px 0}
.section-tint{background:var(--mist);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:640px;margin:0 0 34px}
.section-head .eyebrow{margin-bottom:12px}
.section-head h2{
  font-size:clamp(23px,3vw,30px);color:var(--ink);font-weight:800;
  margin:0 0 10px;letter-spacing:-.2px;
}
.section-head p{color:var(--slate);margin:0;font-size:16px}

/* ---------- Product grid ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);transition:.18s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);border-color:#d5dbe2;box-shadow:0 4px 10px rgba(21,34,50,.07),0 14px 34px rgba(21,34,50,.09)}
.card .tag{
  align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.6px;
  text-transform:uppercase;color:var(--amber-deep);background:var(--amber-wash);
  padding:4px 10px;border-radius:20px;margin-bottom:14px;
}
.card h3{margin:0 0 8px;font-size:20px;color:var(--ink);font-weight:700}
.card h3 .sub{display:block;font-size:13px;color:var(--slate);font-weight:500;margin-top:2px}
.card p{margin:0 0 18px;color:var(--slate);font-size:15px;flex:1}
.card .more{font-weight:600;font-size:14.5px;color:var(--amber-deep);display:inline-flex;align-items:center;gap:6px}
.card .more::after{content:"→";transition:.15s}
.card:hover .more::after{transform:translateX(3px)}

/* product card with image */
.card-media{margin:-26px -24px 18px;border-radius:var(--radius) var(--radius) 0 0;overflow:hidden;
  aspect-ratio:16/10;background:var(--mist)}
.card-media img{width:100%;height:100%;object-fit:cover;display:block;transition:.25s}
.card:hover .card-media img{transform:scale(1.03)}
/* poster variant — square/portrait product art, contained on white */
.card-media.poster{aspect-ratio:1/1;background:#fff;border-bottom:1px solid var(--line)}
.card-media.poster img{object-fit:contain;padding:6px}

/* 4-up product row (homepage) */
.cards.cols-4{grid-template-columns:repeat(4,1fr)}
.cards.cols-4 .card{padding:20px 18px}
.cards.cols-4 .card-media{margin:-20px -18px 14px}
.cards.cols-4 h3{font-size:17px}
.cards.cols-4 .card p{font-size:14px}

/* 3-up product grid (products page) */
.cards.cols-3{grid-template-columns:repeat(3,1fr)}
.cards.cols-3 .card{padding:20px 18px}
.cards.cols-3 .card-media{margin:-20px -18px 14px}
.cards.cols-3 h3{font-size:17px}
.cards.cols-3 .card p{font-size:14px}

/* "view all" row */
.section-foot{margin-top:32px;text-align:center}

/* equipment gallery */
.equip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.equip{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.equip img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.equip .cap{padding:12px 16px;font-size:14px;color:var(--ink);font-weight:600;border:none}
.equip .cap small{display:block;font-weight:400;color:var(--slate);font-size:12.5px;margin-top:2px}

/* products listing page hero-lite */
.page-head{background:var(--mist);border-bottom:1px solid var(--line)}
.page-head .wrap{padding:46px 22px 40px}
.page-head .eyebrow{margin-bottom:12px}
.page-head h1{font-size:clamp(26px,3.6vw,36px);color:var(--ink);margin:0 0 10px;font-weight:800}
.page-head p{color:var(--slate);margin:0;max-width:60ch;font-size:16px}

/* ---------- Feature list ---------- */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 34px;margin-top:8px}
.feature{display:flex;gap:14px}
.feature .dot{flex:none;width:34px;height:34px;border-radius:8px;background:var(--amber-wash);
  display:flex;align-items:center;justify-content:center;color:var(--amber-deep);font-weight:800;font-size:15px}
.feature h4{margin:2px 0 4px;font-size:16px;color:var(--ink);font-weight:700}
.feature p{margin:0;font-size:14.5px;color:var(--slate)}

/* ---------- Product detail page ---------- */
.crumbs{font-size:13.5px;color:var(--slate);padding:22px 0 0}
.crumbs a{color:var(--slate)}.crumbs a:hover{color:var(--amber-deep)}
.product-hero{padding:26px 0 20px;border-bottom:1px solid var(--line)}
.product-hero .tag{font-size:12px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  color:var(--amber-deep);background:var(--amber-wash);padding:4px 11px;border-radius:20px;display:inline-block;margin-bottom:14px}
.product-hero h1{font-size:clamp(26px,3.6vw,36px);color:var(--ink);margin:0 0 6px;font-weight:800}
.product-hero .en-name{font-size:16px;color:var(--slate);margin:0 0 14px;letter-spacing:.3px}
.product-hero .intro{font-size:17px;color:var(--ink-soft);max-width:60ch;margin:0}

.detail{display:grid;grid-template-columns:1fr;gap:34px;padding-top:38px}
.prose h2{font-size:22px;color:var(--ink);margin:34px 0 14px;font-weight:800;
  padding-bottom:10px;border-bottom:2px solid var(--amber-wash)}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:17px;color:var(--ink);margin:22px 0 8px;font-weight:700}
.prose p{margin:0 0 14px}
.prose ul{margin:0 0 16px;padding-left:0;list-style:none}
.prose li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--ink-soft)}
.prose li::before{content:"";position:absolute;left:6px;top:11px;width:7px;height:7px;
  border-radius:2px;background:var(--amber);transform:rotate(45deg)}
.prose figure{margin:20px 0;background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;box-shadow:var(--shadow)}
.prose figure img{margin:0 auto;border-radius:6px}
.prose figure figcaption{text-align:center;font-size:13px;color:var(--slate);margin-top:12px}

/* spec + dosage tables */
.table-scroll{overflow-x:auto;margin:16px 0 22px;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:520px}
caption{caption-side:top;text-align:left;font-weight:700;color:var(--ink);padding:14px 16px 4px;font-size:15px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--ink);color:#fff;font-weight:600;font-size:13.5px;letter-spacing:.2px;border-bottom:none}
tbody tr:nth-child(even){background:var(--mist)}
tbody th{font-weight:600;color:var(--ink);background:#fbfcfd}
.spec-highlight{color:var(--amber-deep);font-weight:700}

.callout{background:var(--amber-wash);border:1px solid #f4d9b3;border-radius:10px;
  padding:16px 20px;margin:20px 0;font-size:14.5px;color:var(--ink-soft)}
.callout b{color:var(--amber-deep)}

/* ---------- Contact strip ---------- */
.contact-band{background:var(--ink);color:#cbd5e2}
.contact-band .wrap{padding:52px 22px}
.contact-band h2{color:#fff;font-size:26px;margin:0 0 10px;font-weight:800}
.contact-band p.sub{color:#93a3b7;margin:0 0 26px;max-width:52ch}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.contact-item .k{font-size:12px;letter-spacing:1px;text-transform:uppercase;color:#7f8ea3;margin:0 0 5px}
.contact-item .v{font-size:16px;color:#fff;font-weight:600;margin:0}
.contact-item .v a{color:#fff}
.contact-item .v a:hover{color:var(--amber)}

/* ---------- Footer ---------- */
.site-footer{background:#0e1826;color:#8595a8;font-size:14px}
.site-footer .wrap{padding:34px 22px;display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.site-footer .foot-brand{display:flex;align-items:center;gap:11px}
.site-footer .foot-brand img{height:34px;width:auto}
.site-footer .foot-brand b{color:#dfe6ee;font-weight:600;font-size:14.5px}
.site-footer .foot-brand small{display:block;color:#65758a;font-size:11.5px}
.site-footer nav{display:flex;gap:18px;flex-wrap:wrap}
.site-footer nav a{color:#8595a8}
.site-footer nav a:hover{color:var(--amber)}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .hero-inner{grid-template-columns:1fr;gap:26px;padding:40px 22px 36px}
  .cap-strip .wrap{grid-template-columns:repeat(2,1fr)}
  .cap{padding:18px 16px}
  .cap:nth-child(3){border-left:none}
  .cap:nth-child(odd){padding-left:22px}
  .cards{grid-template-columns:1fr}
  .cards.cols-4{grid-template-columns:1fr 1fr}
  .cards.cols-4 .card-media{margin:-20px -18px 14px}
  .cards.cols-3{grid-template-columns:1fr 1fr}
  .cards.cols-3 .card-media{margin:-20px -18px 14px}
  .features{grid-template-columns:1fr}
  .equip-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:18px}
  .nav-toggle{display:inline-flex}
  .nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);flex-direction:column;
    align-items:stretch;gap:0;padding:8px 14px 14px;box-shadow:var(--shadow);
  }
  .nav.open{display:flex}
  .nav a{padding:11px 12px;border-radius:7px}
  .lang{margin:8px 0 0;text-align:center}
  .header-inner{position:relative}
}
@media (max-width:520px){
  body{font-size:16px}
  .brand-en{display:none}
  section{padding:44px 0}
  .contact-band .wrap{padding:40px 22px}
  .cap-strip .wrap{grid-template-columns:1fr}
  .cap,.cap:nth-child(odd){border-left:none;border-top:1px solid var(--line);padding:16px 22px}
  .cap:first-child{border-top:none}
  .equip-grid{grid-template-columns:1fr}
  .card-media{margin:-26px -24px 18px}
  .cards.cols-4,.cards.cols-3{grid-template-columns:1fr}
}

/* accessibility */
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}