/* ============================================================
   HILUX General Trading LLC — shared stylesheet
   Used by index.html (English) and zh.html (Chinese).
   Chinese-specific typography lives in the [lang^="zh"] block
   at the bottom of this file.
   ============================================================ */

:root{
  --blue-900:#0a2b57;
  --blue-700:#12539e;
  --blue-600:#1667c4;
  --blue-100:#e8f1fb;
  --ink:#16212e;
  --muted:#5b6b7c;
  --line:#dde5ee;
  --bg:#ffffff;
  --bg-alt:#f5f8fc;
  --max:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue-700);text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------------- Header ---------------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.brand{display:flex;align-items:center;line-height:1.15}
.brand img{height:46px;width:auto;display:block}
/* Legacy text lockup (kept as a fallback if the image is ever removed) */
.brand b{font-size:1.35rem;letter-spacing:.14em;color:var(--blue-700)}
.brand span{font-size:.66rem;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.nav-right{display:flex;align-items:center;gap:16px}

/* ---------------- 3D cube menu ----------------
   One shared vanishing point on .menu (rather than a perspective per
   item) so the row reads as a single 3D space: items toward the edges
   tilt away from the viewer. Each item is a cube 38px tall; the faces
   sit half that depth (19px) off the rotation axis, which is what makes
   the corner edge look solid as it turns.
   --------------------------------------------------------------- */
.menu{
  display:flex;gap:26px;list-style:none;margin:0;padding:0;font-size:.92rem;
  perspective:900px;
  -webkit-perspective:900px;
  perspective-origin:50% 42%;
}
.menu > li{position:relative}
/* Items are placeholders until the internal pages exist: no href yet, so
   they don't navigate. Add href="about.html" (etc.) to switch them on —
   the data-page attribute records the intended target. */
.menu-link{display:block;font-weight:500;color:var(--ink);cursor:default}
.menu-link[href]{cursor:pointer}

.cube{
  position:relative;
  height:38px;
  transform-style:preserve-3d;
  -webkit-transform-style:preserve-3d;
  transition:transform .5s cubic-bezier(.34,1.2,.36,1);
}
.face{
  display:flex;align-items:center;justify-content:center;
  height:38px;padding:0 15px;border-radius:3px;white-space:nowrap;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
/* Front face stays in flow so it sets the cube's width */
.face.front{
  position:relative;
  transform:translateZ(19px);
  background:rgba(18,83,158,.05);
  box-shadow:inset 0 0 0 1px rgba(18,83,158,.08);
}
/* Top face swings down into view: solid blue, lit along its top edge */
.face.top{
  position:absolute;left:0;top:0;width:100%;
  transform:rotateX(90deg) translateZ(19px);
  background:linear-gradient(175deg,#2a7ad6 0%,#12539e 100%);
  color:#fff;font-weight:600;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.32),inset 0 -1px 0 rgba(0,0,0,.18);
}
.menu-link:hover .cube,
.menu-link:focus-visible .cube{transform:rotateX(-90deg)}

/* Contact shadow on the bar beneath, fading in as the cube turns */
.menu > li::after{
  content:"";position:absolute;left:8%;right:8%;bottom:-6px;height:9px;
  border-radius:50%;background:rgba(10,43,87,.34);filter:blur(5px);
  opacity:0;transform:scaleX(.7);
  transition:opacity .5s,transform .5s;pointer-events:none;
}
.menu > li:hover::after{opacity:1;transform:scaleX(1)}
.menu-link:focus-visible{outline:none}
.menu-link:focus-visible .face.top{outline:2px solid #fff;outline-offset:-4px}

/* ---------------- Language dropdown (3D hinge) ---------------- */
.lang{position:relative;perspective:800px}
.lang-btn{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font:inherit;font-size:.86rem;font-weight:600;
  padding:9px 14px;cursor:pointer;border-radius:2px;transition:.2s;
}
.lang-btn:hover{border-color:var(--blue-600);color:var(--blue-700)}
.lang-btn .caret{font-size:.6rem;transition:transform .3s;color:var(--muted)}
.lang[open-state="1"] .lang-btn .caret{transform:rotate(180deg)}
.lang-list{
  position:absolute;top:calc(100% + 8px);right:0;min-width:168px;
  background:#fff;border:1px solid var(--line);
  box-shadow:0 18px 40px rgba(10,43,87,.16);
  list-style:none;margin:0;padding:6px;
  transform-origin:top center;
  transform:rotateX(-90deg);
  opacity:0;pointer-events:none;
  transition:transform .32s cubic-bezier(.2,.8,.3,1),opacity .22s;
}
.lang[open-state="1"] .lang-list{transform:rotateX(0);opacity:1;pointer-events:auto}
.lang-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;color:var(--ink);font-size:.88rem;
}
.lang-list a:hover{background:var(--blue-100);color:var(--blue-700)}
.lang-list a[aria-current="true"]{color:var(--blue-700);font-weight:600}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-block;padding:12px 26px;border-radius:2px;
  background:var(--blue-700);color:#fff;font-weight:600;font-size:.92rem;
  border:1px solid var(--blue-700);transition:.2s;
}
.btn:hover{background:var(--blue-900);border-color:var(--blue-900)}
.btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn.ghost:hover{background:#fff;color:var(--blue-900);border-color:#fff}
.menu-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--blue-700);cursor:pointer}

/* ---------------- Hero ---------------- */
.hero{
  position:relative;color:#fff;
  background:
    linear-gradient(105deg,rgba(6,28,60,.95) 0%,rgba(10,43,87,.88) 42%,rgba(18,83,158,.62) 100%),
    url("images/hero-fiber-weaving.jpg") center right / cover no-repeat,
    #0a2b57;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(105deg,rgba(255,255,255,.05) 0 2px,transparent 2px 9px);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:1;padding-top:104px;padding-bottom:110px}
.eyebrow{
  display:inline-block;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  padding:7px 14px;border:1px solid rgba(255,255,255,.45);margin-bottom:26px;
}
.hero h1{font-size:clamp(2rem,4.6vw,3.5rem);line-height:1.18;margin:0 0 20px;max-width:16ch;font-weight:700}
.hero p.lead{max-width:56ch;color:#dbe8f7;font-size:1.05rem;margin:0 0 34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.22);margin-top:64px;padding-top:28px;gap:20px;
}
.stats div b{display:block;font-size:1.7rem;font-weight:700}
.stats div span{font-size:.8rem;letter-spacing:.08em;color:#bfd6ef;text-transform:uppercase}

/* ---------------- Section scaffolding ---------------- */
section{padding:88px 0}
.alt{background:var(--bg-alt)}
.head{margin-bottom:48px;max-width:70ch}
.head .kicker{
  font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--blue-600);
  font-weight:700;margin:0 0 12px;
}
.head h2{font-size:clamp(1.6rem,3vw,2.3rem);margin:0 0 14px;line-height:1.25}
.head p{color:var(--muted);margin:0}

/* ---------------- About ---------------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.about-grid p{color:var(--muted)}
.about-grid p strong{color:var(--ink)}

/* Offset photo collage, echoing the brochure's stacked crops */
.about-media{position:relative;margin-bottom:34px;padding-bottom:56px}
.about-media img{width:100%;height:300px;object-fit:cover}
.about-media .inset{
  position:absolute;left:-28px;bottom:0;width:56%;height:170px;
  border:6px solid #fff;box-shadow:0 14px 34px rgba(10,43,87,.18);
}
.panel{background:var(--blue-700);color:#fff;padding:34px}
.panel h3{margin:0 0 10px;font-size:1.15rem}
.panel p{color:#dce9f8;font-size:.95rem;margin:0 0 26px}
.panel > div:last-child p:last-child{margin-bottom:0}

/* ---------------- Product categories ---------------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat{
  background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue-600);
  padding:28px 24px;transition:.2s;
}
.cat:hover{box-shadow:0 12px 30px rgba(10,43,87,.1);transform:translateY(-3px)}
.cat h3{margin:0 0 16px;font-size:1.1rem;color:var(--blue-900)}
.cat p{font-size:.92rem;color:var(--muted);margin:0 0 16px}
.cat ul{list-style:none;margin:0;padding:0;font-size:.9rem}
.cat li{padding:8px 0 8px 18px;border-top:1px solid var(--line);position:relative;color:var(--ink)}
.cat li::before{content:"";position:absolute;left:0;top:16px;width:6px;height:6px;background:var(--blue-600)}

/* ---------------- Industrial product range (photo cards) ---------------- */
.range-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px}
.range{background:#fff;border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column}
.range .shot{overflow:hidden;background:var(--blue-100)}
.range .shot img{width:100%;height:190px;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.3,1)}
.range:hover .shot img{transform:scale(1.06)}
.range .body{padding:22px 24px 26px}
.range h3{margin:0 0 8px;font-size:1.05rem;color:var(--blue-900)}
.range p{margin:0;font-size:.9rem;color:var(--muted)}

/* ---------------- Key features ---------------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feat{background:#fff;border:1px solid var(--line);padding:28px}
.feat .num{font-size:.75rem;letter-spacing:.16em;color:var(--blue-600);font-weight:700;margin-bottom:12px}
.feat h3{margin:0 0 10px;font-size:1.02rem}
.feat p{margin:0;font-size:.92rem;color:var(--muted)}

/* ---------------- Projects ---------------- */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proj{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--blue-900),var(--blue-700));
  color:#fff;padding:32px 28px;min-height:340px;
  display:flex;flex-direction:column;justify-content:flex-end;
}
/* Photo sits behind a gradient scrim so the copy stays legible */
.proj .bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.8,.3,1);
}
.proj::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(6,28,60,.94) 12%,rgba(10,43,87,.72) 48%,rgba(10,43,87,.28) 100%);
}
.proj:hover .bg{transform:scale(1.06)}
.proj h3,.proj p{position:relative;z-index:1}
.proj h3{margin:0 0 12px;font-size:1.12rem}
.proj p{margin:0;font-size:.92rem;color:#d7e6f7}

/* ---------------- Slogan band ---------------- */
.band{background:var(--blue-100);text-align:center;padding:64px 0}
.band h2{font-size:clamp(1.35rem,2.6vw,2rem);color:var(--blue-900);margin:0 0 8px}
.band p{color:var(--blue-700);margin:0;font-size:1.05rem}

/* ---------------- Contact ---------------- */
.office-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.office{background:#fff;border:1px solid var(--line);padding:28px}
.office h3{margin:0 0 4px;font-size:1.05rem;color:var(--blue-900)}
.office .co{font-weight:600;font-size:.9rem;margin:0 0 16px}
.office dl{margin:0;font-size:.88rem;color:var(--muted)}
.office dt{
  font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue-600);font-weight:700;margin-top:14px;
}
.office dd{margin:2px 0 0}
.office dd a{word-break:break-word}

/* ---------------- Footer ---------------- */
footer{
  position:relative;isolation:isolate;
  background:linear-gradient(165deg,#071d38 0%,#0a2b57 45%,#0e3d7c 100%);
  color:#a9c4e2;font-size:.9rem;overflow:hidden;
}
/* Soft light bloom, echoing the hero's depth */
footer::before{
  content:"";position:absolute;z-index:-1;
  top:-40%;right:-10%;width:70%;height:160%;
  background:radial-gradient(ellipse at center,rgba(59,142,222,.22) 0%,transparent 62%);
  pointer-events:none;
}
/* Thin gradient rule across the very top edge */
footer::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,#1667c4,#4d9ae8 45%,#1667c4 70%,transparent);
}
footer a{color:#a9c4e2;transition:color .2s}
footer a:hover{color:#fff}

/* --- Call-to-action strip --- */
.foot-cta{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:46px 0;border-bottom:1px solid rgba(255,255,255,.12);
}
.foot-cta h3{margin:0 0 6px;color:#fff;font-size:clamp(1.25rem,2.4vw,1.75rem);line-height:1.3}
.foot-cta p{margin:0;color:#9fbcdd;font-size:.95rem;max-width:52ch}
.foot-cta .btn{background:#fff;color:var(--blue-900);border-color:#fff;white-space:nowrap}
.foot-cta .btn:hover{background:#4d9ae8;border-color:#4d9ae8;color:#fff}

/* --- Link columns --- */
.foot-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.35fr;gap:44px;
  padding:56px 0 48px;
}
footer h4{
  position:relative;color:#fff;font-size:.76rem;letter-spacing:.2em;
  text-transform:uppercase;margin:0 0 22px;padding-bottom:12px;
}
footer h4::after{
  content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:#4d9ae8;
}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:11px}
/* Links slide right and reveal a chevron on hover */
.foot-link{display:inline-flex;align-items:center;gap:0;transition:transform .22s,gap .22s}
.foot-link::before{
  content:"›";color:#4d9ae8;opacity:0;width:0;overflow:hidden;
  transition:opacity .22s,width .22s;
}
.foot-link:hover{transform:translateX(2px);gap:7px}
.foot-link:hover::before{opacity:1;width:8px}

.foot-brand b{color:#fff;font-size:1.45rem;letter-spacing:.16em;display:block;line-height:1.2}
.foot-brand span{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:#89a9cd}
.foot-brand p{max-width:40ch;margin:18px 0 0;line-height:1.75}

/* --- Social buttons --- */
.social{display:flex;gap:10px;margin-top:26px}
.social a{
  display:grid;place-items:center;width:40px;height:40px;
  border:1px solid rgba(255,255,255,.2);border-radius:50%;
  color:#cfe0f4;transition:.25s;
}
.social a:hover{
  background:#1667c4;border-color:#1667c4;color:#fff;transform:translateY(-3px);
  box-shadow:0 10px 22px rgba(22,103,196,.4);
}
.social svg{width:17px;height:17px;fill:currentColor;display:block}

/* --- Contact column --- */
.foot-contact{margin:0;font-size:.88rem;line-height:1.7}
.foot-contact dt{
  color:#7fa4cc;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  font-weight:700;margin-top:16px;
}
.foot-contact dt:first-of-type{margin-top:0}
.foot-contact dd{margin:4px 0 0}
.foot-contact dd a{word-break:break-word}

/* --- Bottom bar --- */
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  font-size:.82rem;color:#7fa0c5;
}
.foot-bottom nav{display:flex;gap:22px;flex-wrap:wrap}
.copy{margin:0}

/* ============================================================
   Interior pages (about / why / contact)
   ============================================================ */

/* Active nav item keeps its top face permanently down */
.menu-link[aria-current="page"] .face.front{
  background:var(--blue-700);color:#fff;box-shadow:inset 0 0 0 1px var(--blue-700);
}

/* --- Compact page banner --- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background:
    linear-gradient(115deg,rgba(6,28,60,.95) 0%,rgba(10,43,87,.9) 46%,rgba(18,83,158,.66) 100%),
    url("images/hero-fiber-weaving.jpg") center/cover no-repeat,
    #0a2b57;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(105deg,rgba(255,255,255,.05) 0 2px,transparent 2px 9px);
}
.page-hero .wrap{position:relative;z-index:1;padding:70px 24px 64px}
.crumb{font-size:.8rem;color:#b6d0ee;margin:0 0 16px;letter-spacing:.02em}
.crumb a{color:#b6d0ee;transition:color .2s}
.crumb a:hover{color:#fff}
.crumb .sep{margin:0 8px;color:#6f90b8}
.crumb .here{color:#fff}
.page-hero h1{font-size:clamp(1.9rem,3.8vw,2.9rem);line-height:1.2;margin:0 0 14px;max-width:20ch;font-weight:700}
.page-hero p{max-width:62ch;color:#dbe8f7;font-size:1.05rem;margin:0}

/* --- Prose + lead paragraph --- */
.lead-p{font-size:1.12rem;color:var(--ink);max-width:64ch;margin:0 0 22px;line-height:1.7}
.prose{max-width:70ch}
.prose p{color:var(--muted);margin:0 0 18px}
.prose p strong{color:var(--ink)}

/* --- Value cards (Why HILUX reasons) --- */
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.value{display:flex;gap:18px;background:#fff;border:1px solid var(--line);padding:26px 28px}
.value .ic{
  flex:0 0 46px;width:46px;height:46px;display:grid;place-items:center;border-radius:50%;
  background:var(--blue-100);color:var(--blue-700);
}
.value .ic svg{width:22px;height:22px;fill:currentColor;display:block}
.value h3{margin:0 0 6px;font-size:1.06rem;color:var(--blue-900)}
.value p{margin:0;font-size:.92rem;color:var(--muted)}

/* --- Split feature row (image + copy) --- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split + .split{margin-top:56px}
.split img{width:100%;height:340px;object-fit:cover}
.split.flip .split-media{order:2}
.split h2{font-size:clamp(1.4rem,2.6vw,2rem);margin:0 0 14px;line-height:1.3}
.split ul{list-style:none;margin:18px 0 0;padding:0}
.split li{position:relative;padding:9px 0 9px 26px;border-top:1px solid var(--line);color:var(--ink);font-size:.94rem}
.split li::before{
  content:"";position:absolute;left:0;top:16px;width:9px;height:9px;
  background:var(--blue-600);transform:rotate(45deg);
}

/* --- Contact page --- */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start}
.contact-info .office{border:0;border-left:3px solid var(--blue-600);padding:6px 0 6px 22px;margin-bottom:26px}
.contact-info .office:last-child{margin-bottom:0}

.form-card{background:#fff;border:1px solid var(--line);box-shadow:0 18px 44px rgba(10,43,87,.08);padding:36px}
.form-card h2{margin:0 0 6px;font-size:1.4rem}
.form-card .sub{margin:0 0 26px;color:var(--muted);font-size:.94rem}
.field{margin-bottom:18px}
.field label{display:block;font-size:.8rem;font-weight:600;letter-spacing:.04em;color:var(--ink);margin-bottom:7px}
.field label .req{color:#c0392b}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:.95rem;color:var(--ink);
  padding:12px 14px;border:1px solid var(--line);border-radius:3px;background:#fbfcfe;
  transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue-600);box-shadow:0 0 0 3px rgba(22,103,196,.14);background:#fff;
}
.field textarea{resize:vertical;min-height:120px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-card .btn{width:100%;text-align:center;border:0;cursor:pointer;font-size:.98rem}
.form-note{margin:14px 0 0;font-size:.8rem;color:var(--muted);text-align:center}
.form-status{
  margin:16px 0 0;padding:13px 16px;border-radius:3px;font-size:.9rem;
  background:var(--blue-100);color:var(--blue-900);display:none;
}
.form-status.show{display:block}

/* --- Stat strip (dark band with figures) --- */
.stat-strip{
  background:linear-gradient(160deg,#071d38,#0e3d7c);color:#fff;
}
.stat-strip .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:56px 24px;
}
.stat-strip .st b{display:block;font-size:2.2rem;font-weight:700;line-height:1}
.stat-strip .st span{display:block;margin-top:8px;font-size:.86rem;color:#a9c4e2}

/* Simple hours / info strip */
.info-band{background:var(--bg-alt);border:1px solid var(--line);padding:26px 30px;margin-top:8px}
.info-band h3{margin:0 0 4px;font-size:1rem;color:var(--blue-900)}
.info-band p{margin:0;color:var(--muted);font-size:.92rem}

/* ============================================================
   Chinese overrides — CJK needs a different font stack, looser
   leading, larger small text, and no letter-spacing/uppercase.
   ============================================================ */
html[lang^="zh"] body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  line-height:1.85;
}
html[lang^="zh"] .brand{line-height:1.2}
html[lang^="zh"] .brand span{font-size:.72rem;letter-spacing:.1em;text-transform:none}
html[lang^="zh"] .menu{font-size:.95rem}
html[lang^="zh"] .lang-list a{font-size:.9rem}
html[lang^="zh"] .eyebrow{font-size:.78rem;letter-spacing:.16em;text-transform:none}
html[lang^="zh"] .hero h1{font-size:clamp(1.9rem,4.4vw,3.2rem);line-height:1.3;max-width:20ch}
html[lang^="zh"] .hero p.lead{max-width:44ch}
html[lang^="zh"] .stats div span{font-size:.84rem;letter-spacing:.04em;text-transform:none}
html[lang^="zh"] .head{max-width:52ch}
html[lang^="zh"] .head .kicker{font-size:.78rem;letter-spacing:.18em;text-transform:none}
html[lang^="zh"] .head h2{font-size:clamp(1.5rem,2.9vw,2.2rem);line-height:1.4}
html[lang^="zh"] .cat ul{font-size:.92rem}
html[lang^="zh"] .cat li::before{top:18px}
html[lang^="zh"] .feat .num{font-size:.78rem;letter-spacing:.14em}
html[lang^="zh"] .feat h3{font-size:1.05rem}
html[lang^="zh"] .proj h3{font-size:1.14rem}
html[lang^="zh"] .band h2{line-height:1.5}
html[lang^="zh"] .band p{font-size:1rem}
html[lang^="zh"] .office h3{font-size:1.08rem}
html[lang^="zh"] .office dl{font-size:.9rem}
html[lang^="zh"] .office dt{font-size:.76rem;letter-spacing:.1em;text-transform:none}
html[lang^="zh"] footer{font-size:.92rem}
html[lang^="zh"] footer h4{font-size:.88rem;letter-spacing:.12em;text-transform:none}
html[lang^="zh"] .foot-brand span{font-size:.8rem;letter-spacing:.06em;text-transform:none;color:#89a9cd}
html[lang^="zh"] .foot-brand p{max-width:30ch}
html[lang^="zh"] .foot-contact dt{font-size:.76rem;letter-spacing:.08em;text-transform:none}
html[lang^="zh"] .foot-bottom{font-size:.84rem}
html[lang^="zh"] .foot-cta p{font-size:1rem}
html[lang^="zh"] .page-hero h1{font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.3;max-width:22ch}
html[lang^="zh"] .crumb{letter-spacing:0}
html[lang^="zh"] .value h3{font-size:1.08rem}
html[lang^="zh"] .field label{letter-spacing:0}
html[lang^="zh"] .lead-p{font-size:1.1rem;line-height:1.9}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:1040px){
  .range-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .menu{gap:20px;font-size:.86rem}
  html[lang^="zh"] .menu{font-size:.9rem}
  .nav .btn{display:none}
}

@media (max-width:960px){
  .about-grid,.cat-grid,.feat-grid,.proj-grid,.office-grid,.range-grid,
  .value-grid,.split,.contact-grid,.field-row{grid-template-columns:1fr}
  .split{gap:28px}
  .split.flip .split-media{order:0}
  .split img{height:250px}
  .stat-strip .wrap{grid-template-columns:repeat(2,1fr);gap:30px 24px}
  .foot-grid{grid-template-columns:1fr;gap:34px;padding:44px 0 38px}
  .foot-cta{padding:38px 0}
  .foot-cta .btn{width:100%;text-align:center}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .cat-grid,.feat-grid,.proj-grid,.office-grid,.range-grid{gap:20px}
  .about-media{padding-bottom:0;margin-bottom:28px}
  .about-media .inset{position:static;width:100%;height:200px;border:0;box-shadow:none;margin-top:14px}
  .proj{min-height:280px}
  .hero{background-position:center center}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:26px}
  /* Mobile panel drops in on the same 3D hinge as the language menu */
  .menu{
    display:none;position:absolute;top:74px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:10px 18px 18px;border-bottom:1px solid var(--line);
    box-shadow:0 22px 44px rgba(10,43,87,.15);
    transform-origin:top center;
    animation:panelDrop .38s cubic-bezier(.2,.9,.3,1) both;
  }
  .menu.open{display:flex}
  .menu > li{border-bottom:1px solid var(--line)}
  .menu > li:last-child{border-bottom:0}
  .menu > li::after{display:none}          /* no floating shadow when stacked */
  .menu .face{justify-content:flex-start;padding:0 10px;height:46px}
  .menu .cube{height:46px}
  .menu .face.front{transform:translateZ(23px)}
  .menu .face.top{transform:rotateX(90deg) translateZ(23px)}
  @keyframes panelDrop{
    from{transform:rotateX(-88deg);opacity:0}
    to{transform:rotateX(0);opacity:1}
  }
  .menu-toggle{display:block}
  section{padding:64px 0}
  .hero .wrap{padding-top:72px;padding-bottom:76px}
}

@media (prefers-reduced-motion:reduce){
  .cube,.lang-list,.range .shot img,.proj .bg,.social a,.foot-link,.menu > li::after{transition:none}
  .range:hover .shot img,.proj:hover .bg,.social a:hover,.foot-link:hover{transform:none}
  .menu{animation:none}
  /* Swap the rotation for a flat colour change */
  .menu-link:hover .cube,.menu-link:focus-visible .cube{transform:none}
  .menu-link:hover .face.front{background:var(--blue-700);color:#fff;box-shadow:none}
  .menu > li:hover::after{opacity:0}
}