/* ============================================================
   TFZH China — Tongfu Zhihui Animation · Global Site Styles
   Color system: Tongfu VI v1.0
   同富橙 #FF5200 (60%) · 智慧黑 #1A1A2E (20%) · 深海蓝 #0055A4 (10%) · 云雾灰 #F5F5F8 (10%)
   ============================================================ */
:root{
  --orange:#FF5200; --orange-dark:#CC4100; --orange-light:#FFEFE5;
  --ocean:#0055A4; --ocean-light:#E6F0F8;
  --black:#1A1A2E;
  --red:#FF5200; --blue:#0055A4; --dark:#1A1A2E; --ink:#2D2D3A;
  --bg:#F5F5F8; --card:#FFFFFF; --line:#D0D0D8; --muted:#8A8A9A;
  --shadow:0 4px 18px rgba(26,26,46,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1120px,92%);margin:0 auto}
.section{padding:72px 0}
.section-alt{background:#fff}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--dark);font-size:19px;letter-spacing:.3px}
.brand img{width:auto;height:40px}
.brand small{display:block;font-weight:500;font-size:11px;color:var(--muted);letter-spacing:.6px}
.nav{display:flex;gap:26px;align-items:center}
.nav a{color:var(--ink);font-size:15px;font-weight:500}
.nav a:hover{color:var(--orange);text-decoration:none}
.nav .cta{background:var(--orange);color:#fff!important;padding:9px 18px;border-radius:999px;font-weight:600}
.nav .cta:hover{background:var(--orange-dark)}
.nav-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--dark)}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,#1A1A2E 0%,#2B2B4A 60%,#0055A4 140%);color:#fff;
  padding:96px 0 88px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-140px;top:-140px;width:460px;height:460px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,82,0,.35),transparent 65%)}
.hero .container{position:relative;z-index:2}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.18;font-weight:800;max-width:820px}
.hero p{font-size:clamp(16px,2vw,20px);color:#D7E1E9;max-width:700px;margin:22px 0 34px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:999px;font-weight:600;font-size:15px;transition:.2s}
.btn-red{background:var(--orange);color:#fff}
.btn-red:hover{background:var(--orange-dark);text-decoration:none}
.btn-outline{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12);text-decoration:none}
.btn-blue{background:var(--ocean);color:#fff}
.btn-blue:hover{background:#003B73;text-decoration:none}
.trust-strip{margin-top:36px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.trust-strip span{font-size:13px;letter-spacing:.8px;color:#9FB2C1;text-transform:uppercase}
.trust-strip b{font-size:13px;color:#fff;font-weight:600;letter-spacing:.4px;
  padding:6px 12px;border:1px solid rgba(255,255,255,.25);border-radius:6px;background:rgba(255,255,255,.04)}

/* ---------- Stat strip ---------- */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:26px 0;text-align:center}
.stat b{display:block;font-size:30px;color:var(--orange);font-weight:800}
.stat span{color:var(--muted);font-size:13.5px}

/* ---------- Section headers ---------- */
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-head .eyebrow{color:var(--orange);font-weight:700;letter-spacing:2.5px;font-size:12.5px;text-transform:uppercase}
.sec-head h2{font-size:clamp(24px,3vw,34px);color:var(--dark);margin:10px 0 12px;font-weight:800}
.sec-head p{color:var(--muted)}
.left-head{max-width:100%;text-align:left;margin-bottom:32px}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px;
  box-shadow:var(--shadow);transition:.22s;border-top:3px solid var(--orange)}
.card:hover{transform:translateY(-4px)}
.card .icon{font-size:30px;margin-bottom:12px}
.card h3{font-size:18px;color:var(--dark);margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.card .num{font-size:34px;font-weight:800;color:var(--orange);line-height:1}

/* ---------- Capability rows ---------- */
.cap-row{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line)}
.cap-row:last-child{border-bottom:0}
.cap-row h3{color:var(--dark);font-size:19px;margin-bottom:4px}
.cap-row .tag{color:var(--muted);font-size:13px}
.cap-row ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.cap-row li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 16px;font-size:13.5px;color:var(--ink)}

/* ---------- Process ---------- */
.process{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;margin-top:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 10px;text-align:center}
.step b{display:block;color:var(--dark);font-size:13px;margin-top:6px}
.step span{font-size:24px}

/* ---------- Products ---------- */
.product{display:flex;flex-direction:column;justify-content:space-between}
.product .ph{height:150px;border-radius:10px;margin-bottom:16px;display:flex;align-items:center;
  justify-content:center;font-size:52px;color:#fff}
.ph-red{background:linear-gradient(135deg,#FF5200,#CC4100)}
.ph-blue{background:linear-gradient(135deg,#0055A4,#003B73)}
.ph-dark{background:linear-gradient(135deg,#2D2D3A,#1A1A2E)}

/* ---------- Compliance ---------- */
.cert{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:18px 20px}
.cert .ic{width:46px;height:46px;border-radius:50%;background:var(--orange-light);display:flex;align-items:center;
  justify-content:center;font-size:22px;flex-shrink:0}
.cert b{display:block;color:var(--dark);font-size:15px}
.cert span{color:var(--muted);font-size:13px}
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cert-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:.2s;box-shadow:var(--shadow)}
.cert-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(26,26,46,.14);text-decoration:none}
.cert-card img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:top;background:#fff;
  border-bottom:1px solid var(--line)}
.cert-meta{padding:16px 18px}
.cert-meta b{display:block;color:var(--dark);font-size:16px;margin-bottom:4px}
.cert-meta span{display:block;color:var(--muted);font-size:13.5px;line-height:1.4}
.cert-meta small{display:inline-block;margin-top:10px;color:var(--blue);font-weight:600;font-size:13px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px}
.contact-info .ci{display:flex;gap:14px;margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.contact-info .ci:last-child{border-bottom:0}
.contact-info .ci .ic{width:42px;height:42px;border-radius:10px;background:var(--orange);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.contact-info .ci b{display:block;color:var(--dark);margin-bottom:4px}
.contact-info .ci span,.contact-info .ci a{display:block;color:var(--muted);font-size:14.5px;line-height:1.5}
.contact-info .ci a{color:var(--blue);margin-bottom:2px}
form .fld{margin-bottom:16px}
form label{display:block;font-size:13.5px;font-weight:600;color:var(--dark);margin-bottom:6px}
form input,form select,form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font-size:15px;font-family:inherit;background:#fff;color:var(--ink)}
form input:focus,form select:focus,form textarea:focus{outline:2px solid var(--ocean);border-color:transparent}
form textarea{min-height:130px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin-top:10px}
.form-status{margin-top:14px;padding:12px 16px;border-radius:10px;font-size:14px;display:none}
.form-status.ok{display:block;background:#E6F6E6;color:#1E7A1E;border:1px solid #B7E0B7}
.form-status.err{display:block;background:#FFEFE5;color:#CC4100;border:1px solid #FFC9A8}

/* ---------- Footer ---------- */
.site-footer{background:var(--black);color:#C6D0D9;padding:52px 0 28px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.site-footer a{color:#C6D0D9;display:block;font-size:14px;margin-bottom:8px}
.site-footer a:hover{color:var(--orange)}
.site-footer p{font-size:14px;color:#9AA7B3}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;
  display:flex;justify-content:space-between;font-size:13px;color:#8A97A3;flex-wrap:wrap;gap:8px}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:linear-gradient(135deg,#1A1A2E,#0055A4);color:#fff;padding:60px 0}
.page-hero h1{font-size:clamp(26px,3.4vw,40px);font-weight:800}
.page-hero p{color:#D7E1E9;max-width:680px;margin-top:10px}
.breadcrumb{font-size:13px;color:#9FB2C1;margin-bottom:8px}
.breadcrumb a{color:#D7E1E9}

/* ---------- Capability lines (workshop pages) ---------- */
.line-block{display:grid;grid-template-columns:1fr 1.15fr;gap:54px;align-items:center}
.line-block.reverse{grid-template-columns:1.15fr 1fr}
.line-block.reverse .line-text{order:2}
.line-block.reverse .line-photo{order:1}
.line-text .line-num{display:inline-block;font-size:13px;font-weight:700;color:var(--orange);
  background:var(--orange-light);padding:5px 11px;border-radius:999px;letter-spacing:.6px;margin-bottom:14px}
.line-text .eyebrow{color:var(--ocean);font-weight:600;font-size:13px;letter-spacing:.8px;
  text-transform:uppercase;display:block;margin-bottom:10px}
.line-text h2{font-size:clamp(24px,2.8vw,34px);color:var(--dark);font-weight:800;line-height:1.2}
.line-tag{color:var(--ocean);font-weight:600;font-size:15px;margin:10px 0 14px}
.line-text p{color:var(--ink);font-size:16px;margin-bottom:18px}
.line-facts{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;margin-top:6px}
.line-facts li{padding-left:22px;position:relative;color:var(--ink);font-size:14.5px}
.line-facts li::before{content:"✓";position:absolute;left:0;top:0;color:var(--orange);font-weight:700}
.line-facts strong{color:var(--dark)}
.line-photo img{width:100%;border-radius:14px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}
.line-photo-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.line-photo-row img{width:100%;border-radius:12px;box-shadow:var(--shadow);aspect-ratio:16/10;object-fit:cover}
.line-photo-row > img:only-child{grid-column:1/-1}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,#FF5200,#CC4100);color:#fff;padding:54px 0;text-align:center}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:18px}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;
    flex-direction:column;padding:20px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav-toggle{display:block}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .cap-row{grid-template-columns:1fr}
  .process{grid-template-columns:repeat(4,1fr)}
  .contact-grid,.footer-grid{grid-template-columns:1fr}
  .line-block,.line-block.reverse{grid-template-columns:1fr;gap:30px}
  .line-block.reverse .line-text{order:1}
  .line-block.reverse .line-photo{order:2}
  .line-facts{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .process{grid-template-columns:repeat(2,1fr)}
  .section{padding:52px 0}
  .line-photo-row{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr}
}