/* ===== CTYG — Cheng Tai Yue Gang International ===== */
:root{
  --navy:#1F3A5F;
  --navy-dark:#162A45;
  --navy-light:#2C507F;
  --steel:#6B7785;
  --steel-light:#A8B2BD;
  --orange:#C55A11;
  --bg:#FFFFFF;
  --bg-alt:#F4F6F9;
  --bg-dark:#13243A;
  --text:#24303D;
  --text-soft:#56636F;
  --line:#E1E6EC;
  --maxw:1200px;
  --radius:8px;
  --shadow:0 6px 24px rgba(31,58,95,.08);
  --shadow-lg:0 14px 40px rgba(31,58,95,.14);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  color:var(--text);background:var(--bg);line-height:1.65;
  -webkit-font-smoothing:antialiased;font-size:16px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:80px 0}
h1,h2,h3,h4{line-height:1.25;color:var(--navy);font-weight:700}
h2.section-title{font-size:clamp(26px,3.4vw,38px);margin-bottom:14px;letter-spacing:.5px}
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.section-head p{color:var(--text-soft);font-size:17px}
.eyebrow{display:inline-block;color:var(--orange);font-weight:700;letter-spacing:2px;
  text-transform:uppercase;font-size:13px;margin-bottom:12px}
.bg-alt{background:var(--bg-alt)}

/* ===== Buttons ===== */
.btn{display:inline-block;padding:13px 28px;border-radius:var(--radius);font-weight:600;
  font-size:15px;transition:.2s;cursor:pointer;border:2px solid transparent;text-align:center}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:#a84a0c;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-outline{border-color:var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy)}
.brand .logo-mark{width:40px;height:40px;border-radius:6px;background:linear-gradient(135deg,var(--navy),var(--navy-light));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;letter-spacing:1px}
.brand .brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand .brand-text .cn{font-size:15px}
.brand .brand-text .en{font-size:10px;color:var(--steel);font-weight:600;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links a{padding:8px 14px;border-radius:6px;font-size:15px;font-weight:500;color:var(--text);transition:.15s}
.nav-links a:hover{color:var(--navy);background:var(--bg-alt)}
.nav-links a.active{color:var(--orange)}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-toggle{border:1px solid var(--line);border-radius:20px;padding:5px 6px;display:flex;gap:2px;background:#fff}
.lang-toggle button{border:none;background:none;padding:4px 12px;border-radius:14px;cursor:pointer;
  font-size:13px;font-weight:600;color:var(--steel)}
.lang-toggle button.on{background:var(--navy);color:#fff}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--navy);display:block;transition:.2s}

/* ===== Hero ===== */
.hero{position:relative;color:#fff;padding:150px 0;overflow:hidden;
  background:linear-gradient(120deg,rgba(14,29,49,.82) 0%,rgba(31,58,95,.6) 55%,rgba(44,80,127,.5) 100%),
    url("/wp-content/uploads/ctyg/img/hero-mine.jpg") center/cover no-repeat;}
.hero::after{content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 59h60M59 0v60' stroke='%23ffffff' stroke-opacity='.04' stroke-width='1'/%3E%3C/svg%3E");
  pointer-events:none}
.hero .wrap{position:relative;z-index:1;max-width:840px}
.hero h1{color:#fff;font-size:clamp(32px,5vw,54px);margin-bottom:20px}
.hero p.sub{font-size:clamp(16px,2vw,20px);color:rgba(255,255,255,.85);margin-bottom:36px;max-width:680px}
.hero .cta-row{display:flex;gap:16px;flex-wrap:wrap}

/* ===== Pillars / cards ===== */
.grid{display:grid;gap:28px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;
  transition:.2s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .ic{width:52px;height:52px;border-radius:10px;background:var(--bg-alt);color:var(--navy);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .ic svg{width:26px;height:26px}
.card h3{font-size:20px;margin-bottom:10px}
.card p{color:var(--text-soft);font-size:15px}

/* ===== Trust bar / stats ===== */
.trust{background:var(--navy);color:#fff}
.trust .wrap{display:grid;grid-template-columns:1fr;gap:36px;text-align:center}
.trust p.lead{font-size:clamp(17px,2.2vw,22px);line-height:1.7;max-width:920px;margin:0 auto;color:rgba(255,255,255,.92)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.stat{padding:10px}
.stat .num{font-size:clamp(30px,4vw,46px);font-weight:800;color:#fff}
.stat .num .accent{color:var(--orange)}
.stat .lbl{color:rgba(255,255,255,.75);font-size:14px;margin-top:4px}

/* ===== Generic content ===== */
.lead{font-size:18px;color:var(--text-soft)}
.prose p{margin-bottom:16px;color:var(--text-soft)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature-list{list-style:none;display:grid;gap:18px}
.feature-list li{padding-left:36px;position:relative}
.feature-list li::before{content:"";position:absolute;left:0;top:4px;width:22px;height:22px;border-radius:50%;
  background:var(--orange);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/16px no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/16px no-repeat}
.feature-list li strong{color:var(--navy);display:block;margin-bottom:2px}

/* ===== Page hero (inner) ===== */
.page-hero{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-light) 100%);color:#fff;padding:70px 0}
.page-hero h1{color:#fff;font-size:clamp(28px,4vw,42px);margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.82);max-width:680px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:14px}

/* ===== Products ===== */
.cat-title{display:flex;align-items:center;gap:14px;margin:14px 0 28px;font-size:24px;color:var(--navy)}
.cat-title span.bar{width:6px;height:26px;background:var(--orange);border-radius:3px}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;
  display:flex;flex-direction:column;transition:.2s;color:inherit}
.prod:hover{border-color:var(--navy-light);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.prod-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--navy)}
.prod-thumb img{width:100%;height:100%;object-fit:cover;transition:.3s}
.prod:hover .prod-thumb img{transform:scale(1.05)}
.prod-info{padding:22px;display:flex;flex-direction:column;flex:1}
.prod h4{font-size:17px;margin-bottom:8px}
.prod .desc{font-size:14px;color:var(--text-soft);flex:1;margin-bottom:16px}
.prod .ask{font-size:14px;font-weight:600;color:var(--orange)}
.prod:hover .ask{text-decoration:underline}

/* product detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.pd-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--navy)}
.pd-media img{width:100%;display:block}
.spec-row{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.spec-row .spec-k{flex:0 0 110px;font-weight:700;color:var(--navy);font-size:14px}
.spec-row .spec-v{color:var(--text-soft);font-size:15px}
.cov-item{}
.compliance{background:var(--bg-alt);border-left:4px solid var(--orange);padding:20px 24px;
  border-radius:6px;font-size:14px;color:var(--text-soft);margin-top:40px}

/* ===== Industries / logo wall ===== */
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;margin-top:8px}
.logo-tile{aspect-ratio:3/2;border:1px solid var(--line);border-radius:8px;background:#fff;
  display:flex;align-items:center;justify-content:center;padding:14px;text-align:center;
  font-weight:700;color:var(--steel);font-size:14px;filter:grayscale(1);opacity:.7;transition:.25s}
.logo-tile:hover{filter:grayscale(0);opacity:1;color:var(--navy);box-shadow:var(--shadow);transform:translateY(-2px)}
.logo-tile img{max-height:46px;width:auto}
.disclaimer{font-size:12px;color:var(--steel);text-align:center;margin-top:28px;font-style:italic}
.coverage{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:24px}
.coverage span{background:#fff;border:1px solid var(--line);border-radius:20px;padding:7px 16px;font-size:14px;color:var(--navy);font-weight:600}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.news-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.news-card .ask{display:inline-block;margin-top:14px;color:var(--orange);font-weight:600;font-size:14px}
.news-detail-media{border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9;background:var(--navy)}
.news-detail-media img{width:100%;height:100%;object-fit:cover}
.news-card .thumb{height:160px;background:linear-gradient(135deg,var(--navy),var(--navy-light));position:relative}
.news-card .thumb .tag{position:absolute;left:14px;top:14px;background:var(--orange);color:#fff;
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:14px}
.news-card .body{padding:24px}
.news-card .date{font-size:13px;color:var(--steel);margin-bottom:8px}
.news-card h3{font-size:18px;margin-bottom:10px;line-height:1.4}
.news-card p{font-size:14px;color:var(--text-soft)}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.info-row{display:flex;gap:14px;margin-bottom:22px}
.info-row .ic{flex:0 0 42px;height:42px;border-radius:8px;background:var(--bg-alt);color:var(--navy);
  display:flex;align-items:center;justify-content:center}
.info-row .ic svg{width:20px;height:20px}
.info-row .t{font-size:13px;color:var(--steel);text-transform:uppercase;letter-spacing:.5px}
.info-row .v{font-size:16px;color:var(--text);font-weight:500}
form .field{margin-bottom:18px}
form label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin-bottom:6px}
form input,form select,form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:6px;font-size:15px;font-family:inherit;background:#fff}
form input:focus,form select:focus,form textarea:focus{outline:none;border-color:var(--navy-light);
  box-shadow:0 0 0 3px rgba(44,80,127,.12)}
form textarea{min-height:120px;resize:vertical}
.form-note{font-size:13px;color:var(--steel);margin-top:10px}
.map-embed{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);height:360px}
.map-embed iframe{width:100%;height:100%;border:0;display:block}

/* ===== CTA strip ===== */
.cta-strip{background:linear-gradient(120deg,var(--orange),#a84a0c);color:#fff;text-align:center}
.cta-strip h2{color:#fff;margin-bottom:14px}
.cta-strip p{color:rgba(255,255,255,.9);margin-bottom:26px;font-size:17px}

/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.72);padding:60px 0 28px;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1.4fr;gap:40px;margin-bottom:40px}
.footer-top h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.5px}
.footer-top a{color:rgba(255,255,255,.72);transition:.15s}
.footer-top a:hover{color:#fff}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-brand .fb-name{color:#fff;font-weight:700;font-size:15px;margin-bottom:12px;line-height:1.5}
.footer-brand p{line-height:1.7;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:rgba(255,255,255,.5);font-size:13px}

/* ===== Lang visibility (zh = Simplified default, tw = Traditional, en = English) ===== */
[data-lang-tw],[data-lang-en]{display:none}
html[lang="zh-hant"] [data-lang-zh]{display:none}
html[lang="zh-hant"] [data-lang-tw]{display:revert}
html[lang="en"] [data-lang-zh]{display:none}
html[lang="en"] [data-lang-en]{display:revert}

/* ===== Responsive ===== */
@media(max-width:980px){
  .grid-3,.prod-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(4,1fr)}
  .split,.contact-grid,.footer-top,.product-detail{grid-template-columns:1fr;gap:32px}
}
@media(max-width:760px){
  section{padding:56px 0}
  .nav-links{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:12px 24px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);transform:translateY(-150%);transition:.25s;gap:2px}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:12px 8px}
  .nav-toggle{display:flex}
  .grid-3,.grid-4,.prod-grid,.news-grid,.stats{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .stats{grid-template-columns:repeat(3,1fr)}
}