/* ============================================================
   YITORCH CO., LTD — B2B Sourcing Website
   Palette: Navy #0E2A47 / Orange #C2703A / Light #F5F7FA
   ============================================================ */
:root {
  --navy: #0e2a47;
  --navy-2: #143a60;
  --orange: #c2703a;
  --orange-d: #d95a15;
  --ink: #1c2b3a;
  --grey: #5a6b7e;
  --line: #e3e9f0;
  --bg: #f5f7fa;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(14, 42, 71, 0.08);
  --shadow-lg: 0 16px 44px rgba(14, 42, 71, 0.16);
  --font: "Montserrat", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { line-height: 1.25; color: var(--navy); }
.section { padding: 88px 0; }
.section.bg { background: var(--bg); }

/* ---------- Section headings ---------- */
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 52px; }
.eyebrow {
  display: inline-block;
  color: var(--orange);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.sec-head h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; }
.sec-head p { color: var(--grey); margin-top: 14px; font-size: 17px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  transition: all 0.25s ease;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-d); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { border-color: rgba(255,255,255,0.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-2); transform: translateY(-2px); }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.logo img { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: 34px; }
.nav a {
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--orange);
  transition: width 0.25s;
}
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { color: var(--orange); }
.nav .btn { padding: 11px 22px; font-size: 14px; }

/* Products dropdown */
.nav .has-drop { position: relative; }
.nav .drop-toggle { display: inline-flex; align-items: center; gap: 6px; }
.nav .caret { transition: transform 0.25s; }
.nav .has-drop:hover .caret { transform: rotate(-180deg); }
.nav .dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: -16px;
  min-width: 310px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 2px;
}
.nav .has-drop:hover .dropdown,
.nav .has-drop.open .dropdown { display: flex; }
.nav .dropdown::before {
  content: "";
  position: absolute;
  top: -18px; left: 0; right: 0; height: 18px;
}
.nav .dropdown a {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  transition: background 0.18s, color 0.18s;
}
.nav .dropdown a::after { display: none; }
.nav .dropdown a span { display: block; }
.nav .dropdown a i {
  display: block;
  font-style: normal;
  font-size: 12px;
  font-weight: 500;
  color: var(--grey);
  margin-top: 2px;
}
.nav .dropdown a:hover { background: var(--bg); color: var(--orange); }
.nav .dropdown a:hover i { color: var(--orange); opacity: 0.75; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 26px; height: 3px; background: var(--navy); border-radius: 2px; transition: 0.3s; }

/* anchor jump offset (sticky header) */
section[id] { scroll-margin-top: 92px; }

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(105deg, rgba(9, 26, 45, 0.93) 0%, rgba(14, 42, 71, 0.82) 45%, rgba(14, 42, 71, 0.55) 100%),
    url("../img/products/factory-aerial.jpg") center 30% / cover no-repeat;
}
.hero-content { max-width: 720px; padding: 120px 0; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(242, 107, 33, 0.16);
  border: 1px solid rgba(242, 107, 33, 0.5);
  color: #ffb28a;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero h1 { color: #fff; font-size: clamp(34px, 5.4vw, 58px); font-weight: 800; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero p { margin: 22px 0 34px; font-size: 18px; color: #c9d6e4; max-width: 620px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* trust strip under hero */
.trust-strip { background: var(--navy); color: #fff; }
.trust-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 26px 0;
}
.trust-item { display: flex; align-items: center; gap: 14px; }
.trust-item svg { flex: 0 0 auto; }
.trust-item b { display: block; font-size: 15px; }
.trust-item span { font-size: 13px; color: #9fb2c6; }

/* ---------- Category cards ---------- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.cat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.cat-card .thumb { aspect-ratio: 16/10; overflow: hidden; background: #fff; }
.cat-card .thumb img { width: 100%; height: 100%; object-fit: contain; padding: 18px; transition: transform 0.4s; }
.cat-card:hover .thumb img { transform: scale(1.05); }
.cat-card .body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.cat-card h3 { font-size: 19px; margin-bottom: 8px; }
.cat-card p { color: var(--grey); font-size: 14.5px; flex: 1; }
.cat-card .more {
  margin-top: 16px;
  color: var(--orange);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Advantages ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.adv-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: transform 0.3s, box-shadow 0.3s;
}
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.adv-icon {
  width: 54px; height: 54px;
  border-radius: 12px;
  background: linear-gradient(135deg, #ffe8da, #ffd6bd);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.adv-card h3 { font-size: 17.5px; margin-bottom: 8px; }
.adv-card p { color: var(--grey); font-size: 14.5px; }

/* ---------- Process ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  counter-reset: step;
}
.process-step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
  position: relative;
  counter-increment: step;
}
.process-step::before {
  content: "0" counter(step);
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--orange);
  opacity: 0.25;
  margin-bottom: 8px;
}
.process-step h4 { font-size: 15.5px; margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--grey); }

/* ---------- Videos ---------- */
.video-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 26px; }
.video-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy);
  box-shadow: var(--shadow);
}
.video-card video { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; background: #000; }
.video-card .cap { padding: 16px 20px; color: #fff; }
.video-card .cap b { display: block; font-size: 15.5px; }
.video-card .cap span { font-size: 13px; color: #9fb2c6; }

/* ---------- CTA banner ---------- */
.cta {
  background:
    linear-gradient(100deg, rgba(14,42,71,0.96), rgba(20,58,96,0.9)),
    url("../img/products/perforated-tray-01.jpg") center/cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 84px 0;
}
.cta h2 { color: #fff; font-size: clamp(26px, 4vw, 38px); font-weight: 800; }
.cta p { color: #c9d6e4; margin: 14px auto 30px; max-width: 640px; }

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  background:
    linear-gradient(100deg, rgba(9,26,45,0.94), rgba(14,42,71,0.8)),
    url("../img/products/factory-aerial.jpg") center 35% / cover no-repeat;
  color: #fff;
  padding: 92px 0;
}
.page-hero h1 { color: #fff; font-size: clamp(30px, 4.6vw, 46px); font-weight: 800; }
.page-hero .crumb { color: #8fa5bd; font-size: 14px; margin-bottom: 12px; }
.page-hero .crumb a { color: #c9d6e4; }
.page-hero p { color: #c9d6e4; margin-top: 14px; max-width: 680px; font-size: 17px; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 54px; align-items: center; }
.about-grid .txt h2 { font-size: clamp(24px, 3.4vw, 34px); margin-bottom: 18px; }
.about-grid .txt p { color: var(--grey); margin-bottom: 14px; font-size: 15.5px; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-media .badge {
  position: absolute;
  bottom: -22px; left: -22px;
  background: var(--orange);
  color: #fff;
  border-radius: var(--radius);
  padding: 18px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.about-media .badge b { display: block; font-size: 30px; font-weight: 800; }
.about-media .badge span { font-size: 12.5px; opacity: 0.9; }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 8px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy);
}

/* values */
.val-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.val-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; }
.val-card .num { color: var(--orange); font-size: 30px; font-weight: 800; }
.val-card h4 { font-size: 15.5px; margin: 6px 0 6px; }
.val-card p { font-size: 13.5px; color: var(--grey); }

/* qc timeline */
.qc-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.qc-item {
  display: flex; gap: 16px;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 24px;
}
.qc-item .dot {
  flex: 0 0 auto;
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 15px;
}
.qc-item h4 { font-size: 15.5px; margin-bottom: 4px; }
.qc-item p { font-size: 13.5px; color: var(--grey); }

/* standards & finishes table */
.tbl-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
table.spec { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 640px; }
table.spec th {
  background: var(--navy); color: #fff;
  text-align: left; padding: 14px 18px; font-weight: 700;
}
table.spec td { padding: 13px 18px; border-top: 1px solid var(--line); }
table.spec tr:nth-child(even) td { background: #f8fafc; }
table.spec .tag {
  display: inline-block; min-width: 34px; text-align: center;
  background: #ffe8da; color: var(--orange-d);
  border-radius: 6px; font-weight: 800; font-size: 13px;
  padding: 2px 8px;
}

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: #fff; margin-bottom: 14px; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer;
  padding: 18px 22px;
  font-weight: 700; font-size: 15.5px; color: var(--navy);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--orange); transition: 0.25s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .ans { padding: 0 22px 20px; color: var(--grey); font-size: 14.5px; }

/* ---------- Products page ---------- */
.prod-block { padding: 72px 0; border-bottom: 1px solid var(--line); }
.prod-block:nth-child(even) { background: var(--bg); }
.prod-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 10px; flex-wrap: wrap; }
.prod-head h2 { font-size: clamp(23px, 3vw, 30px); }
.prod-head .code {
  font-size: 13px; font-weight: 700; color: var(--orange);
  background: #fff4ec; border: 1px solid #ffd9c0;
  padding: 5px 14px; border-radius: 100px; white-space: nowrap;
}
.prod-head + .lead { color: var(--grey); max-width: 860px; margin-bottom: 30px; font-size: 15.5px; }
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 28px; }
.prod-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.prod-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.prod-card .im { aspect-ratio: 4/3; overflow: hidden; display: flex; align-items: center; justify-content: center; padding: 14px; }
.prod-card .im img { max-height: 100%; object-fit: contain; }
.prod-card .im.contain-dark { background: #eef2f6; }
.prod-card .inf { padding: 14px 16px 18px; border-top: 1px solid var(--line); }
.prod-card .inf b { display: block; font-size: 14.5px; color: var(--navy); }
.prod-card .inf span { font-size: 12.5px; color: var(--grey); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 0.72fr; gap: 44px; align-items: start; }
.form-card, .info-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 700; font-size: 13.5px; margin-bottom: 7px; color: var(--navy); }
.field label span { color: var(--orange); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: #fbfcfe;
  transition: border 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--orange);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 12.5px; color: var(--grey); margin-top: 12px; }

.info-card { background: var(--navy); color: #fff; border: 0; }
.info-card h3 { color: #fff; font-size: 20px; margin-bottom: 20px; }
.info-line { display: flex; gap: 14px; margin-bottom: 20px; align-items: flex-start; }
.info-line .ico {
  flex: 0 0 auto;
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(242,107,33,0.18);
  display: flex; align-items: center; justify-content: center;
}
.info-line b { display: block; font-size: 14px; }
.info-line span { font-size: 13.5px; color: #a9bccf; word-break: break-all; }
.info-card .mini { margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,0.12); font-size: 13px; color: #a9bccf; }

/* ---------- Footer ---------- */
.footer { background: #0a1f36; color: #93a7bc; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding: 66px 0 40px;
}
.footer .logo img { height: 42px; margin-bottom: 18px; }
.footer p { font-size: 13.5px; max-width: 320px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { font-size: 13.5px; transition: color 0.2s; }
.footer ul a:hover { color: var(--orange); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
}
.footer-bottom a { color: var(--orange); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cat-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(3, 1fr); }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .val-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .section { padding: 64px 0; }
  .nav {
    position: fixed;
    inset: 74px 0 auto 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 24px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 13px 4px; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  .nav .has-drop { display: flex; flex-direction: column; }
  .nav .has-drop .drop-toggle { justify-content: space-between; }
  .nav .has-drop.open .caret { transform: rotate(-180deg); }
  .nav .dropdown {
    position: static;
    min-width: 0;
    box-shadow: none;
    border: 0;
    padding: 2px 0 6px 12px;
    display: none;
  }
  .nav .has-drop:hover .dropdown { display: none; }
  .nav .has-drop.open .dropdown { display: flex; }
  .nav .dropdown a { border-radius: 0; padding: 11px 4px; border-bottom: 1px solid var(--line); }
  .nav .dropdown a:last-child { border-bottom: 0; }
  .nav .btn { margin-top: 14px; justify-content: center; }
  .nav-toggle { display: flex; }
  .hero { min-height: 560px; }
  .hero-content { padding: 90px 0; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); }
  .cat-grid, .adv-grid, .video-grid, .process-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .qc-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .about-media .badge { left: 12px; bottom: -18px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .prod-grid { grid-template-columns: 1fr; }
  .logo img { height: 38px; }
}

/* ---------- Conversion: per-category quote CTA ---------- */
.prod-cta {
  margin-top: 34px;
  padding: 22px 26px;
  background: linear-gradient(135deg, #0e2a47 0%, #173d63 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}
.prod-cta-txt b { display: block; color: #fff; font-size: 17px; margin-bottom: 5px; }
.prod-cta-txt span { color: #b8c9db; font-size: 14px; }
.prod-cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.prod-cta-btns .btn { padding: 12px 22px; font-size: 14px; }
.prod-cta-btns .btn-navy { background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.5); }
.prod-cta-btns .btn-navy:hover { background: rgba(255, 255, 255, 0.22); }

/* ---------- Conversion: quick inquiry chips ---------- */
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 28px; }
.chip {
  display: inline-block; padding: 9px 16px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--navy);
  font-size: 13.5px; font-weight: 600; text-decoration: none; transition: all .2s;
}
.chip:hover { background: var(--orange); border-color: var(--orange); color: #fff; transform: translateY(-2px); }

/* ---------- Conversion: mobile sticky inquiry bar ---------- */
.mcta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: none; gap: 8px; padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.97);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 22px rgba(14, 42, 71, 0.12);
  transform: translateY(110%); transition: transform .28s ease;
}
.mcta.show { transform: translateY(0); }
.mcta-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 8px; border-radius: 10px; font-size: 13.5px; font-weight: 700;
  text-decoration: none; text-align: center; line-height: 1.1;
}
.mcta-quote { background: var(--orange); color: #fff; flex: 1.6; }
.mcta-wa { background: #1fa463; color: #fff; }
.mcta-mail { background: var(--navy); color: #fff; }
@media (max-width: 900px) { .mcta { display: flex; } }
@media (min-width: 901px) { .mcta { display: none !important; } }

/* ---------- RFQ: selected-category chip + trust note ---------- */
#inq-chip {
  display: none; background: rgba(242, 107, 33, 0.12); color: var(--orange-d);
  border: 1px solid rgba(242, 107, 33, 0.35); border-radius: 999px;
  padding: 7px 15px; font-size: 13px; font-weight: 700; margin-bottom: 16px;
}
.trust-note {
  display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 16px;
  font-size: 13px; color: var(--grey);
}
.trust-note span::before { content: "✓ "; color: #1a9c62; font-weight: 700; }
@media (max-width: 900px) { footer { padding-bottom: 96px; } }

/* ---------- Desktop floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 26px; z-index: 95;
  width: 56px; height: 56px; border-radius: 50%;
  background: #1fa463; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 26px rgba(31, 164, 99, 0.4);
  transition: transform .2s, box-shadow .2s;
}
.wa-float:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 12px 30px rgba(31, 164, 99, 0.5); }
.wa-float::after {
  content: "Chat with us";
  position: absolute; right: 66px; white-space: nowrap;
  background: var(--navy); color: #fff; font-size: 12.5px; font-weight: 600;
  padding: 7px 12px; border-radius: 8px; opacity: 0; transform: translateX(6px);
  transition: all .2s; pointer-events: none;
}
.wa-float:hover::after { opacity: 1; transform: translateX(0); }
@media (max-width: 900px) { .wa-float { display: none; } }

/* ---------- Location / map card ---------- */
.map-card {
  display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 26px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
}
.map-pin-title { display: block; font-size: 17px; color: var(--navy); margin-bottom: 10px; }
.map-text .addr { font-size: 14.5px; line-height: 1.75; color: var(--grey); margin-bottom: 14px; }
.map-note { font-size: 13px; color: var(--grey); margin-bottom: 18px; padding-left: 12px; border-left: 3px solid var(--orange); }
.map-frame { border-radius: 10px; overflow: hidden; min-height: 320px; background: var(--bg); }
.map-frame #tmap { width: 100%; height: 100%; min-height: 320px; }
@media (max-width: 820px) {
  .map-card { grid-template-columns: 1fr; }
  .map-frame, .map-frame #tmap { min-height: 260px; }
}

/* =========================================================
   视觉体系统一为 www.yitorch.com 原站风格
   （navy 主色 / terracotta 点缀 / 系统字体 / 圆角与阴影）
   ========================================================= */
:root {
  --navy: #1a3a5c;
  --navy-2: #24547f;
  --navy-d: #0f2438;
  --blue: #2c5282;
  --blue-l: #3b7dd8;
  --orange: #c2703a;
  --orange-d: #a85c2c;
  --ink: #1b2733;
  --grey: #5b6b7b;
  --line: #e2e8f0;
  --bg: #f6f8fb;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16,36,56,.06), 0 4px 16px rgba(16,36,56,.06);
  --shadow-lg: 0 16px 44px rgba(16,36,56,.16);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}
body { font-family: var(--font); font-size: 16px; line-height: 1.68; letter-spacing: .002em; background: var(--bg); color: var(--ink); }
h1,h2,h3,h4 { color: var(--navy-d); line-height: 1.28; font-weight: 650; }
h1 { font-size: 2rem; letter-spacing: -.015em; }
h2 { font-size: 1.45rem; }
.container { max-width: 1180px; }
.section { padding: 56px 0; }

/* 按钮：主色 navy，点缀色 terracotta */
.btn { border-radius: 8px; font-weight: 600; padding: 9px 16px; font-size: .9rem; letter-spacing: 0; text-transform: none; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--blue); box-shadow: none; transform: translateY(-1px); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-outline { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); }

/* 页头：白底细线 sticky，与原站一致 */
.header { background: #fff; border-bottom: 1px solid var(--line); box-shadow: none; }
.header-inner { min-height: 68px; }
.logo img { height: 34px; }
.nav a { color: #33475b; font-weight: 500; font-size: .92rem; border-radius: 8px; padding: 7px 10px; }
.nav a:hover { background: #eef3f9; text-decoration: none; }
.nav a.active, .nav a.active:hover { color: var(--navy); background: #e7eefa; }
.nav a.active::after { display: none; }
.nav .dropdown { border-radius: 12px; box-shadow: 0 16px 44px rgba(16,40,70,.2); border: 1px solid var(--line); }
.nav .dropdown a { border-radius: 8px; }
.nav .dropdown a:hover { background: #eef3f9; }

/* Hero：深色渐变 + 双栏 */
.hero { background: linear-gradient(160deg, var(--navy-d) 0%, var(--navy) 58%, #24547f 100%); }
.hero::before { opacity: .18; }

/* 卡片：白底描边，hover 抬起 */
.cat-card, .prod-card, .adv-card, .panel, .map-card, .contact-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.cat-card:hover, .prod-card:hover, .adv-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #c9d8e8; }
.cat-card .thumb, .prod-card .im { background: #eef2f6; }

/* CTA 条与页脚 */
.cta { background: var(--navy-d); }
.cta .btn-primary { background: var(--accent, var(--orange)); }
footer { background: var(--navy-d); }
.prod-cta { background: linear-gradient(135deg, var(--navy-d) 0%, #24547f 100%); }
.trust-note span::before { color: var(--orange); }
#inq-chip { background: rgba(194,112,58,.12); color: var(--orange-d); border-color: rgba(194,112,58,.35); }
.wa-float { background: #1a9c62; }

/* ---------- 多语种下拉（沿用原站 .lang-more 组件） ---------- */
.lang-more { position: relative; }
.lm-btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: #fff;
  border-radius: 999px; padding: 5px 11px; font-size: .78rem; font-weight: 700; letter-spacing: .04em;
  color: #44586c; cursor: pointer; font-family: inherit; line-height: 1.2; }
.lm-btn:hover { background: #eef4fb; color: var(--navy); border-color: #b9c6d6; }
.lm-menu { position: absolute; right: 0; top: calc(100% + 8px); z-index: 80; width: 320px;
  max-height: min(66vh, 340px); overflow: auto; background: #fff; border: 1px solid var(--line);
  border-radius: 12px; box-shadow: 0 16px 44px rgba(16,40,70,.2); padding: 12px 12px 8px; text-align: left; }
.lm-menu .lm-t { font-size: .75rem; color: var(--grey); margin: 0 0 8px; line-height: 1.5; }
.lm-menu ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.lm-menu a { display: block; padding: 7px 9px; border-radius: 8px; font-size: .83rem; color: #33475b; line-height: 1.35; }
.lm-menu a span { display: block; font-size: .72rem; color: var(--grey); }
.lm-menu a:hover { background: #eef4fb; color: var(--navy); text-decoration: none; }
.lm-sep { border: 0; height: 1px; background: var(--line); margin: 10px 0; }
.gt-host { position: absolute !important; left: -9999px !important; top: auto !important; width: 1px; height: 1px; overflow: hidden; }
.skiptranslate { display: none !important; }
.goog-te-banner-frame, .goog-te-balloon-frame { display: none !important; }
.gt-note { font-size: .72rem; color: var(--grey); margin: 8px 0 0; }

/* ============================================================
   Email guide dialog — 点击 mailto 时的兜底引导（避免"点了没反应"）
   ============================================================ */
.mm-overlay{position:fixed;inset:0;z-index:1200;display:flex;align-items:center;justify-content:center;
  padding:20px;background:rgba(15,36,56,.55);backdrop-filter:blur(3px);animation:mmFade .18s ease}
.mm-overlay[hidden]{display:none}
.mm-box{position:relative;width:100%;max-width:520px;background:#fff;border-radius:var(--radius);
  box-shadow:0 24px 60px rgba(15,36,56,.28);padding:30px 30px 26px;animation:mmPop .2s ease}
.mm-x{position:absolute;top:12px;right:14px;width:34px;height:34px;border:0;background:transparent;
  color:var(--grey);font-size:24px;line-height:1;cursor:pointer;border-radius:8px}
.mm-x:hover{background:var(--bg);color:var(--ink)}
.mm-box h3{margin:0 0 6px;font-size:20px;color:var(--navy)}
.mm-sub{margin:0 0 16px;font-size:14px;color:var(--grey)}
.mm-addr{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg);
  border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:14px}
.mm-addr b{font-size:16px;color:var(--navy);letter-spacing:.2px;word-break:break-all}
.mm-addr button{border:1px solid var(--line);background:#fff;color:var(--navy);font-weight:700;
  font-size:12.5px;padding:7px 12px;border-radius:8px;cursor:pointer;white-space:nowrap}
.mm-addr button:hover{border-color:var(--blue-l);color:var(--blue-l)}
.mm-preview{max-height:150px;overflow:auto;background:#fbfcfe;border:1px dashed var(--line);
  border-radius:10px;padding:12px 14px;font-size:12.5px;line-height:1.6;color:var(--grey);
  white-space:pre-wrap;margin-bottom:16px}
.mm-btns{display:flex;flex-direction:column;gap:10px}
.mm-btns .btn{width:100%;justify-content:center;text-align:center}
.mm-form{display:block;text-align:center;font-size:14px;font-weight:700;color:var(--blue);
  padding-top:4px;text-decoration:underline}
.mm-note{margin:12px 0 0;font-size:13px;color:var(--orange-d);font-weight:600;min-height:1px}
.mm-note:empty{display:none}
@keyframes mmFade{from{opacity:0}to{opacity:1}}
@keyframes mmPop{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
@media (max-width:520px){.mm-box{padding:24px 18px 20px}.mm-addr{flex-direction:column;align-items:stretch;text-align:center}.mm-addr button{width:100%}}

/* ============================================================
   Hero 排版修正（字号/断行/按钮/徽章统一到新 token）
   ============================================================ */
.hero { min-height: 600px; }
.hero-content { max-width: 760px; padding: 96px 0; }
.hero-badge {
  background: rgba(194, 112, 58, 0.18);
  border: 1px solid rgba(224, 144, 92, 0.55);
  color: #e6a377;
  margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(30px, 3.8vw, 47px);
  line-height: 1.18;
  letter-spacing: -0.4px;
  text-wrap: balance;
  max-width: 700px;
}
.hero h1 em { color: #e0905c; }
.hero p {
  margin: 20px 0 36px;
  max-width: 580px;
  font-size: 17px;
  line-height: 1.7;
  color: #c3d2e2;
}
.hero-actions { gap: 14px; }
.hero-actions .btn {
  padding: 13px 28px;
  font-size: 0.98rem;
  border-radius: 8px;
}
/* 深色背景上主按钮用橙色强调，次按钮描边——层级清晰 */
.hero-actions .btn-primary { background: var(--orange); }
.hero-actions .btn-primary:hover { background: var(--orange-d); }
@media (max-width: 768px) {
  .hero { min-height: 540px; }
  .hero-content { padding: 72px 0; }
  .hero p { margin: 18px 0 30px; }
}

/* ============================================================
   修复：导航内的按钮被 .nav a 的文字色覆盖（灰字撞深蓝底）
   ============================================================ */
.nav a.btn-primary,
.nav a.btn-navy,
a.btn-primary,
a.btn-navy {
  color: #fff;
}
.nav a.btn-primary:hover,
.nav a.btn-navy:hover {
  color: #fff;
  background: var(--blue);
}
.nav a.btn-primary:hover {
  background: var(--orange-d);
}

/* ============================================================
   Hero 两行版式：大标题 2 行 + 副文案 2 行（<br class="hero-br">）
   ============================================================ */
.hero-content { max-width: 940px; }
.hero h1 {
  font-size: clamp(27px, 3.1vw, 39px);
  max-width: none;
  text-wrap: initial;
  line-height: 1.22;
}
.hero p {
  max-width: none;
  font-size: 16.5px;
  line-height: 1.7;
}
/* 手机上取消强制换行，恢复自然流式 */
@media (max-width: 768px) {
  .hero-br { display: none; }
  .hero h1 { font-size: clamp(26px, 6.4vw, 34px); text-wrap: balance; }
  .hero p { max-width: 580px; }
}

/* ============================================================
   品类专题页 / 采购指南页 版式组件
   ============================================================ */
.page-head {
  background: linear-gradient(160deg, var(--navy-d) 0%, var(--navy) 62%, #24547f 100%);
  color: #fff;
  padding: 46px 0 52px;
}
.page-head h1 { color: #fff; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.2; margin: 10px 0 0; max-width: 900px; }
.page-head .lede { margin: 16px 0 26px; max-width: 780px; font-size: 17px; line-height: 1.7; color: #c3d2e2; }
.page-head .chip-row { justify-content: flex-start; margin-top: 26px; }
.page-head .chip { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.35); }
.page-head .btn-outline-wa { border: 1px solid rgba(255,255,255,.6); color: #fff; }
.page-head .btn-outline-wa:hover { background: rgba(255,255,255,.14); }
.page-head .btn-primary { background: var(--orange); }
.page-head .btn-primary:hover { background: var(--orange-d); }

.crumb { font-size: 13px; color: #9fb3c8; }
.crumb a { color: #cfdcea; text-decoration: none; }
.crumb a:hover { color: #fff; text-decoration: underline; }

.copy-block { max-width: 900px; }
.copy-block p { font-size: 16.5px; line-height: 1.8; color: #3d4f61; margin-bottom: 16px; }
.copy-block p:last-child { margin-bottom: 0; }

.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-table tr { border-bottom: 1px solid var(--line); }
.spec-table tr:last-child { border-bottom: 0; }
.spec-table td { padding: 12px 8px; vertical-align: top; color: #3d4f61; line-height: 1.65; }
.spec-table td:first-child { width: 220px; color: var(--navy); }
@media (max-width: 600px) {
  .spec-table td { display: block; width: auto !important; padding: 6px 0; }
  .spec-table tr { display: block; padding: 12px 0; }
}

.adv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.adv-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; }
.adv-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--navy); }
.adv-card p { font-size: 15px; color: var(--grey); line-height: 1.7; }

.tick-list { list-style: none; padding: 0; margin: 0; }
.tick-list li { position: relative; padding-left: 26px; margin-bottom: 12px; font-size: 15.5px; color: #3d4f61; line-height: 1.65; }
.tick-list li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 14px; height: 8px;
  border-left: 2px solid var(--orange); border-bottom: 2px solid var(--orange);
  transform: rotate(-45deg);
}

.two-col { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; }
.alt-bg { background: var(--bg); }
.narrow { max-width: 820px; }
.form-panel { max-width: 860px; margin: 0 auto; padding: 34px 34px 30px; }

.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 22px; transition: border-color .2s, box-shadow .2s;
}
.faq-item[open] { border-color: #c9d6e4; box-shadow: var(--shadow); }
.faq-item summary {
  cursor: pointer; font-weight: 700; font-size: 16.5px; color: var(--navy);
  list-style: none; position: relative; padding-right: 30px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 0; top: -2px; font-size: 22px;
  color: var(--orange); font-weight: 700;
}
.faq-item[open] summary::after { content: "\2212"; }

/* ============================================================
   RTL (Arabic) — 真实多语言页面（独立 URL + hreflang），非机翻挂件
   ============================================================ */
html[lang="ar"] { --font: "IBM Plex Sans Arabic", "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif; }
html[lang="ar"] body { font-family: var(--font); }
html[dir="rtl"] .lm-menu { right: auto; left: 0; text-align: right; }
html[dir="rtl"] .tick-list li { padding-left: 0; padding-right: 26px; }
html[dir="rtl"] .tick-list li::before {
  left: auto; right: 0; border-left: 0;
  border-right: 2px solid var(--orange); border-bottom: 2px solid var(--orange);
  transform: rotate(45deg);
}
html[dir="rtl"] .faq-item summary { padding-right: 0; padding-left: 30px; }
html[dir="rtl"] .faq-item summary::after { right: auto; left: 0; }
html[dir="rtl"] .spec-table th,
html[dir="rtl"] .spec-table td { text-align: right; }
html[dir="rtl"] .spec-table td:last-child { direction: ltr; text-align: right; }
html[dir="rtl"] .map-note { padding-left: 0; padding-right: 12px; border-left: 0; border-right: 3px solid var(--orange); }
html[dir="rtl"] input[type="email"],
html[dir="rtl"] input[type="tel"],
html[dir="rtl"] input[type="url"] { direction: ltr; text-align: right; }
html[dir="rtl"] .prod-cta { flex-direction: row-reverse; }
html[dir="rtl"] .hero-badge,
html[dir="rtl"] .chip { unicode-bidi: isolate; }
.faq-item p { margin: 12px 0 0; font-size: 15.5px; line-height: 1.75; color: var(--grey); }

@media (max-width: 900px) {
  .adv-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .page-head { padding: 34px 0 38px; }
  .form-panel { padding: 22px 16px 20px; }
  .narrow { max-width: none; }
}

/* ---------- Video fallback note ---------- */
.video-card .v-fallback {
  padding: 12px 20px 0;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: #ffd7a8;
  background: var(--navy);
}
.video-card .v-fallback a { color: #fff; font-weight: 700; text-decoration: underline; }
.video-card video { cursor: pointer; }