/* ================= Hongye Steel — English site stylesheet =================
   Self-contained design system for the /en/ export site.
   Palette: navy #061a33 / accent #f35717 / slate #5a6b80 / light #f5f7fa
   ========================================================================= */
:root{
  --navy:#061a33; --navy-2:#0d2946; --navy-3:#123a5e;
  --accent:#f35717; --accent-2:#ff7a3d;
  --slate:#5a6b80; --line:#dfe5ec; --bg:#f5f7fa; --white:#fff;
  --ok:#1a7f5a;
  --max:1180px;
  --r:10px;
  --shadow:0 1px 2px rgba(6,26,51,.06),0 8px 24px rgba(6,26,51,.07);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",
         Arial,"Noto Sans",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:#16283d;font-family:var(--font);
  font-size:16px;line-height:1.68;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy-3);text-decoration:none}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;color:var(--navy);font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(28px,4.2vw,44px)}
h2{font-size:clamp(22px,2.8vw,30px)}
h3{font-size:19px}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin:.28em 0}
.en-wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.en-wrap-wide{max-width:1320px;margin:0 auto;padding:0 20px}

/* ---------- header（白底，与中文站 .navbar 一致：半透明白+模糊+浅阴影） ---------- */
.en-head{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);color:#16283d;
  position:sticky;top:0;z-index:50;box-shadow:0 2px 16px rgba(6,26,51,.08)}
.en-head-in{display:flex;align-items:center;gap:18px;height:76px;max-width:var(--max);
  margin:0 auto;padding:0 20px}
.en-brand{display:flex;align-items:center;gap:13px;flex:0 0 auto}
.en-brand img{width:46px;height:46px;object-fit:contain}
.en-brand b{display:block;font-size:20px;line-height:1.15;letter-spacing:0;color:var(--navy)}
.en-brand small{display:block;font-size:11px;color:var(--slate);letter-spacing:.3px}
.en-nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.en-nav a{color:var(--navy-2);font-size:14px;font-weight:600;padding:8px 12px;border-radius:7px}
.en-nav a:hover{color:var(--accent);background:var(--bg)}
.en-nav a[aria-current]{color:var(--accent);background:rgba(243,87,23,.1)}
/* 语言切换：单图标按钮（英文界面显示「去中文」五星红旗），桌面端悬浮头部右上角；不占导航流 */
.en-langswitch{display:inline-flex;align-items:center;
  border:1px solid var(--line);border-radius:9px;overflow:hidden;background:#fff}
.en-langswitch .ls-go{display:grid;place-items:center;padding:5px 7px;color:var(--navy-2)}
.en-langswitch .ls-go:hover{background:var(--bg)}
.en-langswitch svg,.langswitch svg{width:18px;height:18px;display:block;border-radius:3px;
  box-shadow:0 0 0 1px rgba(6,26,51,.15)}
@media(min-width:761px){
  .en-head-in{position:relative;padding-right:64px}
  .en-langswitch{position:absolute;right:20px;top:50%;transform:translateY(-50%)}
}
@media(max-width:760px){
  .en-langswitch .ls-go{padding:5px 7px}
}
.en-burger{display:none;background:none;border:0;color:var(--navy-2);font-size:24px;padding:6px 10px}

/* ---------- hero ---------- */
.en-hero{background:
   radial-gradient(1100px 420px at 82% -12%,rgba(243,87,23,.34),transparent 62%),
   linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 58%,#0a2f4f 100%);
  color:#eaf1f8;padding:60px 0 54px}
.en-hero h1{color:#fff;max-width:20ch}
.en-hero .eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;color:#ffb493;background:rgba(243,87,23,.16);
  border:1px solid rgba(243,87,23,.42);padding:5px 11px;border-radius:99px;margin-bottom:16px}
.en-hero p{color:#c4d3e3;font-size:17px;max-width:62ch;margin-bottom:26px}
.en-hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:38px;align-items:start}
.en-hero-col{display:flex;flex-direction:column;gap:18px;min-width:0}
.en-cta-row{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.en-hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:14px;padding:20px 22px;backdrop-filter:blur(4px)}
.en-hero-card h4{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  margin:0 0 12px;color:#9fb3ca}
.en-hero-card dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:9px 14px;font-size:14px}
.en-hero-card dt{color:#8ea5bd}
.en-hero-card dd{margin:0;color:#fff;font-weight:600}

/* ---------- buttons ---------- */
.en-btn{display:inline-block;padding:13px 24px;border-radius:9px;font-weight:800;
  font-size:15px;border:1px solid transparent;cursor:pointer;transition:.15s;text-align:center}
.en-btn-primary{background:var(--accent);color:#fff}
.en-btn-primary:hover{background:var(--accent-2);color:#fff;transform:translateY(-1px)}
.en-btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.en-btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.en-btn-outline{background:#fff;color:var(--navy);border-color:var(--line)}
.en-btn-outline:hover{border-color:var(--navy-3);color:var(--navy-3)}
.en-cta-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- sections ---------- */
.en-sec{padding:58px 0}
.en-sec--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.en-sec-head{max-width:70ch;margin-bottom:30px}
.en-sec-head .eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;color:var(--accent);display:block;margin-bottom:8px}
.en-sec-head p{color:var(--slate);font-size:16px;margin:0}

/* ---------- cards / grids ---------- */
.en-grid{display:grid;gap:18px}
.en-grid-2{grid-template-columns:repeat(2,1fr)}
.en-grid-3{grid-template-columns:repeat(3,1fr)}
.en-grid-4{grid-template-columns:repeat(4,1fr)}
.en-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px 22px 20px;box-shadow:var(--shadow);transition:.18s}
.en-card:hover{border-color:#c3d0de;transform:translateY(-2px)}
.en-card h3{margin:0 0 6px;font-size:17px}
.en-card .std{font-size:12.5px;color:var(--slate);font-family:ui-monospace,Menlo,Consolas,monospace;
  display:block;margin-bottom:10px;word-break:break-word}
.en-card p{font-size:14.5px;color:var(--slate);margin:0}
.en-card .more{display:inline-block;margin-top:12px;font-size:13.5px;font-weight:800;color:var(--accent)}
.en-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.en-chip{font-size:12.5px;font-weight:700;background:#eef3f8;color:var(--navy-3);
  border:1px solid #dde6f0;border-radius:99px;padding:3px 10px}
.en-chip:hover{background:var(--navy-3);color:#fff;border-color:var(--navy-3)}

/* ---------- stats ---------- */
.en-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.en-stat{background:#fff;padding:22px 18px;text-align:center}
.en-stat b{display:block;font-size:30px;font-weight:900;color:var(--navy);line-height:1.1;
  letter-spacing:-.02em}
.en-stat span{display:block;font-size:12.5px;color:var(--slate);margin-top:6px;
  text-transform:uppercase;letter-spacing:.08em;font-weight:700}

/* ---------- tables ---------- */
.en-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table.en-table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
table.en-table th,table.en-table td{padding:10px 13px;text-align:left;
  border-bottom:1px solid var(--line);vertical-align:top}
table.en-table thead th{background:#f0f4f9;color:var(--navy);font-weight:800;
  font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;position:sticky;top:0}
table.en-table tbody tr:last-child td{border-bottom:0}
table.en-table tbody tr:nth-child(even){background:#fafcfe}
table.en-table td:first-child{font-weight:700;color:var(--navy)}
.en-note{font-size:13px;color:var(--slate);margin:10px 0 0}

/* ---------- grade page ---------- */
.en-crumb{font-size:13px;color:var(--slate);padding:16px 0 0}
.en-crumb a{color:var(--slate)}
.en-crumb span{margin:0 7px;opacity:.55}
.en-g-hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);
  color:#eaf1f8;padding:26px 0 34px}
.en-g-hero h1{color:#fff;margin:10px 0 8px;font-size:clamp(26px,4vw,38px)}
.en-g-hero .tagline{color:#a9bdd2;font-size:15px;max-width:70ch;margin:0}
.en-g-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;
  margin-top:24px}
.en-g-meta div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);
  border-radius:9px;padding:12px 14px}
.en-g-meta span{display:block;font-size:11px;letter-spacing:.11em;text-transform:uppercase;
  color:#8ea5bd;margin-bottom:4px}
.en-g-meta b{display:block;color:#fff;font-size:14.5px;font-weight:700;word-break:break-word}
.en-g-body{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;padding:34px 0 60px}
.en-g-aside{position:sticky;top:88px;align-self:start}
.en-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:20px;box-shadow:var(--shadow);margin-bottom:18px}
.en-panel h3{font-size:15px;margin:0 0 12px;text-transform:uppercase;letter-spacing:.06em;
  color:var(--navy);font-size:12.5px}
.en-block{background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.en-block h2{font-size:20px;margin:0 0 14px}
.en-block p:last-child{margin-bottom:0}
.en-spec-dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:10px 16px;font-size:14px}
.en-spec-dl dt{color:var(--slate);font-weight:600}
.en-spec-dl dd{margin:0;font-weight:700;color:var(--navy);word-break:break-word}

/* ---------- RFQ form ---------- */
.en-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.en-form .full{grid-column:1/-1}
.en-field label{display:block;font-size:12.5px;font-weight:800;color:var(--navy);
  margin-bottom:5px;letter-spacing:.03em;text-transform:uppercase}
.en-field input,.en-field textarea,.en-field select{
  width:100%;padding:11px 13px;border:1px solid #ccd7e3;border-radius:8px;
  font-family:var(--font);font-size:15px;color:#16283d;background:#fff}
.en-field input:focus,.en-field textarea:focus,.en-field select:focus{
  outline:2px solid rgba(243,87,23,.35);border-color:var(--accent)}
.en-field textarea{min-height:104px;resize:vertical}
.en-form-note{font-size:12.5px;color:var(--slate);margin:12px 0 0}
.en-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.en-msg{margin-top:12px;font-size:14px;font-weight:700;display:none}
.en-msg.ok{display:block;color:var(--ok)}
.en-msg.err{display:block;color:#c0392b}

/* ---------- photography ---------- */
.en-figure{margin:0 0 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;box-shadow:var(--shadow)}
.en-figure img{display:block;width:100%;aspect-ratio:970/600;object-fit:cover;
  background:#e8edf3}
.en-figure figcaption{padding:11px 16px;font-size:12.5px;line-height:1.62;color:var(--slate);
  background:#fbfcfe;border-top:1px solid var(--line)}
.en-family-hero-img{max-width:520px}
.en-fam{display:block}
.en-fam-media{display:block;max-width:560px;margin:0 auto 18px;border-radius:9px;overflow:hidden;
  border:1px solid var(--line);background:#e8edf3;line-height:0;text-align:center}
.en-fam-media img{width:100%;aspect-ratio:970/600;object-fit:cover}

/* ---------- callout ---------- */
.en-callout{background:#fff8f4;border:1px solid #ffd9c6;border-left:4px solid var(--accent);
  border-radius:8px;padding:16px 18px;font-size:14px;color:#5a3a29;margin:18px 0}
.en-callout b{color:#8a3b12}

/* ---------- footer ---------- */
.en-foot{background:var(--navy);color:#9fb3ca;padding:48px 0 26px;margin-top:0}
.en-foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.en-foot h4{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  margin:0 0 14px}
.en-foot a{color:#b9cade;font-size:14px;display:block;padding:3px 0}
.en-foot a:hover{color:#fff}
.en-foot p{font-size:13.5px;line-height:1.7;margin:0 0 10px}
.en-foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .en-hero-grid{grid-template-columns:1fr}
  .en-cta-row{justify-content:flex-start}
  .en-g-body{grid-template-columns:1fr}
  .en-g-aside{position:static}
  .en-grid-3,.en-grid-4{grid-template-columns:repeat(2,1fr)}
  .en-foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .en-nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;
    flex-direction:column;padding:10px 16px 16px;gap:2px;box-shadow:0 12px 24px rgba(6,26,51,.14)}
  .en-nav.open{display:flex}
  .en-nav a{padding:11px 12px}
  .en-burger{display:block;margin-left:auto}
  .en-grid-2,.en-grid-3,.en-grid-4{grid-template-columns:1fr}
  .en-stats{grid-template-columns:repeat(2,1fr)}
  .en-form{grid-template-columns:1fr}
  .en-sec{padding:42px 0}
  .en-hero{padding:40px 0 38px}
  .en-foot-grid{grid-template-columns:1fr}
  .en-brand small{display:none}
}

/* [2026-10-27] footer ICP filing -- must look identical to the copyright text.
   font-size/family/weight/line-height are forced to INHERIT because .en-foot a
   sets font-size:14px + display:block, which would make the ICP line larger and
   break it onto its own row on the English pages. */
.footer-bottom .icp,.en-foot-bottom .icp{
  font-size:inherit;font-family:inherit;font-weight:inherit;font-style:inherit;
  line-height:inherit;letter-spacing:inherit;
  display:inline;padding:0;margin-left:10px;vertical-align:baseline;
  color:inherit;text-decoration:none;white-space:nowrap;
  transition:opacity .2s}
.footer-bottom .icp:hover,.en-foot-bottom .icp:hover{text-decoration:underline}
@media(max-width:680px){
  .footer-bottom .icp,.en-foot-bottom .icp{margin-left:0;display:inline-block;margin-top:3px}
}