/* =========================================================
   DONGJI · 智能炒菜机 OEM/ODM/JDM 独立站
   High-end dark theme
   ========================================================= */

:root {
  --bg: #0b0b0d;
  --bg-2: #121317;
  --surface: #16181d;
  --surface-2: #1c1f26;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f5f7;
  --text-dim: #a7adb8;
  --text-faint: #6b7280;
  --accent: #ff6a13;
  --accent-2: #ff8a3d;
  --accent-soft: rgba(255, 106, 19, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --maxw: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, box-shadow 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 16px 38px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 10px 30px rgba(255, 106, 19, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(255, 106, 19, 0.5);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line-strong);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--accent); }

.btn-dark {
  background: #1f2937;
  border-color: rgba(255,255,255,0.18);
  color: #fff;
}
.btn-dark:hover { background: #111827; border-color: rgba(255,255,255,0.3); transform: translateY(-2px); }

.link-arrow {
  display: inline-block;
  margin-top: 12px;
  font-weight: 600;
  color: var(--accent-2);
  transition: gap 0.2s, color 0.2s;
}
.link-arrow:hover { color: var(--accent); }

/* ---------- Top bar ---------- */
.topbar {
  background: #000;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-dim);
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 38px;
  gap: 12px;
}
.topbar-right { color: var(--accent-2); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 13, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s, box-shadow 0.3s;
}
.site-header.scrolled { background: rgba(11, 11, 13, 0.95); box-shadow: 0 8px 30px rgba(0,0,0,.5); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { height: 38px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a {
  font-size: 15px;
  color: var(--text-dim);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color 0.2s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--accent);
  transition: width 0.25s var(--ease);
}
.main-nav a:hover { color: var(--text); }
.main-nav a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 16px; }

.lang-switch {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 48px; height: 34px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--text); background: var(--surface); cursor: pointer;
  text-decoration: none; transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.lang-switch:hover { border-color: var(--accent); color: var(--accent); background: rgba(255,90,40,0.08); }

.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: 650px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  padding: 130px 0 110px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center right;
  z-index: 0;
}
.hero-bg::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(11,11,13,0.97) 0%, rgba(11,11,13,0.82) 38%, rgba(11,11,13,0.45) 62%, rgba(11,11,13,0.35) 100%),
    linear-gradient(180deg, rgba(11,11,13,0.6) 0%, transparent 30%, rgba(11,11,13,0.6) 100%);
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: 680px;
  transform: translate(-250px, -50px);
}
.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 700; letter-spacing: 2px;
  color: var(--accent-2);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(38px, 5.2vw, 62px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: #fff;
}
.hero h1 .accent {
  color: var(--accent);
}
.hero-sub {
  margin: 22px 0 30px;
  font-size: 17px; color: var(--text-dim); max-width: 520px;
  line-height: 1.65;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-cta .btn { border-radius: 10px; }
.hero-cta .btn-dark {
  background: rgba(17, 24, 39, 0.8);
  border-color: rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
}
.hero-cta .btn-dark:hover { background: rgba(17, 24, 39, 0.95); }

.hero .eyebrow { color: rgba(255,255,255,0.9); }

/* Hero bottom badges */
.hero-badges {
  position: absolute; bottom: 32px; left: 24px; right: 24px;
  display: flex; flex-wrap: wrap; gap: 34px;
  z-index: 2;
}
.hero-badge { display: flex; align-items: center; gap: 10px; }
.hero-badge .ico {
  width: 26px; height: 26px;
  flex-shrink: 0;
  color: rgba(255,255,255,0.7);
}
.hero-badge .txt { font-size: 12px; font-weight: 500; color: rgba(255,255,255,0.7); line-height: 1.35; }

/* ---------- Trust ---------- */
.trust { display: none; }

/* Stats strip */
.stats-strip { background: var(--bg-2); border-bottom: 1px solid var(--line); }
.stats-strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 44px 0; text-align: center; }
.stats-strip strong { display: block; font-size: 34px; font-weight: 800; color: var(--accent-2); }
.stats-strip strong span { font-size: 16px; color: var(--text); margin-left: 1px; }
.stats-strip em { font-style: normal; font-size: 14px; color: var(--text-dim); }

/* ---------- Section base ---------- */
.section { padding: 90px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 54px; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; letter-spacing: -0.4px; }
.section-head p { margin-top: 14px; color: var(--text-dim); font-size: 16px; }

/* ---------- Platforms ---------- */
.platforms { background: var(--bg); }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.platform-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}
.platform-card:hover { transform: translateY(-8px); border-color: rgba(255,106,19,0.4); box-shadow: 0 24px 50px rgba(0,0,0,0.5); }
.platform-img { aspect-ratio: 1/1; overflow: hidden; background: var(--surface-2); }
.platform-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.platform-card:hover .platform-img img { transform: scale(1.06); }
.platform-body { padding: 22px; }
.platform-body .tag {
  display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent-2);
  background: var(--accent-soft); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px;
}
.platform-body h3 { font-size: 19px; margin-bottom: 8px; }
.platform-body p { font-size: 14px; color: var(--text-dim); }
.platform-body ul { margin: 14px 0 4px; display: flex; flex-direction: column; gap: 6px; }
.platform-body ul li { font-size: 13px; color: var(--text); position: relative; padding-left: 18px; }
.platform-body ul li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }

/* ---------- Services + form ---------- */
.services { background: var(--bg-2); }
.services-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.services-cards { display: grid; grid-template-columns: 1fr; gap: 18px; }
.service-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}
.service-card:hover { border-color: rgba(255,106,19,0.4); transform: translateX(6px); }
.service-no {
  position: absolute; top: 16px; right: 24px;
  font-size: 44px; font-weight: 800; color: rgba(255,255,255,0.05);
}
.service-card h3 { font-size: 22px; margin-bottom: 8px; }
.service-card p { color: var(--text-dim); font-size: 15px; }
.service-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.service-points span {
  font-size: 12.5px; color: var(--text); background: rgba(255,255,255,0.05);
  border: 1px solid var(--line); padding: 5px 12px; border-radius: 999px;
}

/* Lead form */
.lead-form {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 30px;
  position: sticky; top: 96px;
  box-shadow: var(--shadow);
}
.lead-form h3 { font-size: 22px; }
.lead-form-sub { font-size: 14px; color: var(--text-dim); margin: 6px 0 20px; }
.field { margin-bottom: 14px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text); font-size: 14px; font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-faint); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.field select { appearance: none; cursor: pointer; }
.field textarea { resize: vertical; }
.form-note { font-size: 11.5px; color: var(--text-faint); margin-top: 12px; line-height: 1.5; }
.form-success {
  display: none; padding: 14px; border-radius: var(--radius-sm);
  background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.4);
  color: #6ee7a8; font-size: 14px; margin-bottom: 14px;
}
.form-success.show { display: block; }

/* ---------- Solutions ---------- */
.solutions { background: var(--bg); }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.solution-item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px 24px;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.solution-item:hover { transform: translateY(-6px); border-color: rgba(255,106,19,0.35); }
.sol-ico { font-size: 30px; }
.solution-item h3 { font-size: 18px; margin: 14px 0 8px; }
.solution-item p { font-size: 14px; color: var(--text-dim); }

/* ---------- Process ---------- */
.process { background: var(--bg-2); }
.process-steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.step {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 16px; position: relative;
  transition: border-color 0.3s, transform 0.3s;
}
.step:hover { border-color: rgba(255,106,19,0.4); transform: translateY(-5px); }
.step-no {
  display: inline-block; font-size: 14px; font-weight: 800; color: var(--accent-2);
  background: var(--accent-soft); width: 38px; height: 38px; line-height: 38px;
  text-align: center; border-radius: 10px; margin-bottom: 14px;
}
.step h3 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--text-dim); }

/* ---------- Cases ---------- */
.cases { background: var(--bg); }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.case-card:hover { transform: translateY(-8px); border-color: rgba(255,106,19,0.4); box-shadow: var(--shadow); }
.case-img { aspect-ratio: 4/3; overflow: hidden; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.case-card:hover .case-img img { transform: scale(1.06); }
.case-body { padding: 22px; }
.case-body .tag {
  display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent-2);
  background: var(--accent-soft); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px;
}
.case-body h3 { font-size: 18px; margin-bottom: 8px; }
.case-body p { font-size: 14px; color: var(--text-dim); }

/* ---------- Certifications ---------- */
.certs { background: var(--bg-2); }
.cert-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.cert-badge {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 3/2;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  transition: 0.3s;
}
.cert-badge img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: brightness(1.05);
}
.cert-badge:hover { border-color: var(--accent); transform: translateY(-4px); }

/* ---------- Factory ---------- */
.factory { background: var(--bg); }
.factory-gallery {
  display: grid; grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 200px; gap: 16px;
}
.fg { overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); }
.fg img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.fg:hover img { transform: scale(1.08); }
.factory-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 40px; text-align: center;
}
.factory-stats strong { display: block; font-size: 34px; font-weight: 800; color: var(--accent-2); }
.factory-stats em { font-style: normal; font-size: 14px; color: var(--text-dim); }

/* ---------- About ---------- */
.about { background: var(--bg-2); }
.about-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items: center; }
.about-copy h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; margin-bottom: 18px; }
.about-copy p { color: var(--text-dim); margin-bottom: 16px; font-size: 15.5px; }
.about-list { display: flex; flex-direction: column; gap: 10px; margin: 20px 0 28px; }
.about-list li { color: var(--text); font-size: 15px; }
.about-visual img { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); }

/* ---------- CTA banner ---------- */
.cta-banner {
  padding: 90px 0; text-align: center;
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(255,106,19,0.25), transparent 70%),
    linear-gradient(180deg, #0b0b0d, #14110d);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.cta-inner h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; }
.cta-inner p { color: var(--text-dim); margin: 14px 0 28px; font-size: 16px; }

/* ---------- Footer ---------- */
.site-footer { background: #060608; padding-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 36px; padding-bottom: 44px; }
.footer-brand p { color: var(--text-dim); font-size: 14px; }
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06); border: 1px solid var(--line);
  font-size: 13px; transition: 0.25s;
}
.footer-social a:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.footer-col h4 { font-size: 15px; margin-bottom: 16px; color: var(--text); }
.footer-col a, .footer-col p { display: block; color: var(--text-dim); font-size: 14px; margin-bottom: 10px; transition: color 0.2s; }
.footer-col a:hover { color: var(--accent-2); }
.footer-bottom { border-top: 1px solid var(--line); padding: 18px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-bottom span { font-size: 12.5px; color: var(--text-faint); }

/* ---------- WeChat float ---------- */
.wechat-float {
  position: fixed;
  right: 24px;
  bottom: 124px;
  z-index: 99;
  width: 130px;
  cursor: pointer;
  filter: drop-shadow(0 6px 18px rgba(0,0,0,0.4));
  transition: transform 0.25s var(--ease);
}
.wechat-float img { width: 100%; display: block; border-radius: 8px; }
.wechat-float:hover { transform: translateY(-4px); }

.wechat-modal {
  position: fixed; inset: 0;
  z-index: 110;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.72);
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}
.wechat-modal.show { opacity: 1; pointer-events: auto; }
.wechat-modal-content {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 30px 24px;
  max-width: 320px;
  text-align: center;
  box-shadow: var(--shadow);
  transform: translateY(10px);
  transition: transform 0.25s var(--ease);
}
.wechat-modal.show .wechat-modal-content { transform: translateY(0); }
.wechat-modal-content h4 { font-size: 18px; margin-bottom: 16px; }
.wechat-qr {
  width: 180px; height: 180px;
  margin: 0 auto 16px;
  background: #fff;
  border-radius: 10px;
  padding: 12px;
}
.wechat-qr img { width: 100%; height: 100%; object-fit: contain; }
.wechat-modal-content p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }
.wechat-close {
  position: absolute; top: 10px; right: 14px;
  background: none; border: none; color: var(--text-dim);
  font-size: 24px; cursor: pointer; line-height: 1;
}
.wechat-close:hover { color: var(--text); }

@media (max-width: 560px) {
  .wechat-float { width: 110px; right: 16px; bottom: 116px; }
}

/* ---------- Mobile nav overlay ---------- */
.nav-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  opacity: 0; pointer-events: none; transition: 0.3s; z-index: 90;
}
.nav-overlay.show { opacity: 1; pointer-events: auto; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.show { opacity: 1; transform: none; }

/* ---------- Product detail pages ---------- */
.product-hero { padding: 130px 0 70px; }
.product-hero-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.product-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.product-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.product-intro .tag { display: inline-block; background: var(--accent-soft); color: var(--accent-2); font-weight: 600; font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 16px; }
.product-intro h1 { font-size: 38px; line-height: 1.15; margin-bottom: 18px; }
.product-lead { color: var(--text-dim); font-size: 17px; max-width: 540px; margin-bottom: 22px; }
.product-highlights { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.product-highlights li { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-size: 14px; color: var(--text); }

.breadcrumb { font-size: 14px; color: var(--text-faint); margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--accent-2); }
.breadcrumb span { color: var(--text); }

.scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.scenario-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.scenario-item h3 { font-size: 18px; margin-bottom: 8px; }
.scenario-item p { color: var(--text-dim); font-size: 15px; }

.spec-table-wrap { max-width: 760px; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table tr { border-bottom: 1px solid var(--line); }
.spec-table th, .spec-table td { text-align: left; padding: 16px 18px; font-size: 15px; }
.spec-table th { width: 40%; color: var(--text-dim); font-weight: 600; background: var(--surface); }
.spec-table td { color: var(--text); }

.qa-list { max-width: 820px; display: grid; gap: 14px; }
.qa-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px 24px; }
.qa-item h4 { font-size: 16px; margin-bottom: 8px; color: var(--accent-2); }
.qa-item p { color: var(--text-dim); font-size: 15px; }

.manu-card { background: linear-gradient(135deg, var(--surface), var(--surface-2)); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 36px; }
.manu-card h3 { font-size: 22px; margin-bottom: 20px; }
.manu-rows { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.manu-rows div { display: flex; flex-direction: column; gap: 6px; }
.manu-rows span { font-size: 13px; color: var(--text-faint); }
.manu-rows strong { font-size: 16px; }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; transition: transform .25s var(--ease), border-color .25s; }
.related-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.related-img { border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 14px; }
.related-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.related-card h3 { font-size: 
17px; margin-bottom: 8px; }
.related-card .link-arrow { color: var(--accent-2); font-weight: 600; }

/* ---------- Dropdown nav ---------- */
.main-nav .has-dropdown { position: relative; }
.main-nav .dropdown { position: absolute; top: 100%; left: 0; min-width: 180px; background: var(--surface-2); border: 1px solid var(--line-strong); border-radius: var(--radius-sm); padding: 8px; display: none; flex-direction: column; gap: 2px; z-index: 60; box-shadow: var(--shadow); }
.main-nav .has-dropdown:hover .dropdown { display: flex; }
.main-nav .dropdown a { padding: 9px 12px; border-radius: 8px; font-size: 14px; white-space: nowrap; }
.main-nav .dropdown a:hover { background: rgba(255,255,255,0.06); color: var(--accent-2); }
@media (max-width: 860px) {
  .main-nav .dropdown { position: static; display: flex; background: transparent; border: none; padding: 0 0 0 12px; box-shadow: none; }
  .main-nav .dropdown a { padding: 8px; }
  .product-hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .scenario-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .product-intro h1 { font-size: 30px; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-gallery { grid-template-columns: repeat(2, 1fr); }
  .solution-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-strip-inner { grid-template-columns: repeat(2, 1fr); padding: 32px 0; }
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed; top: 110px; right: 16px; left: 16px;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--surface-2); border: 1px solid var(--line-strong);
    border-radius: var(--radius); padding: 14px;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: 0.3s var(--ease);
  }
  .main-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 10px 8px; border-radius: 8px; }
  .main-nav a:hover { background: rgba(255,255,255,0.05); }
  .mobile-toggle { display: flex; }
  .hero { padding: 110px 0 60px; height: auto; min-height: auto; }
  .hero-inner { transform: none; }
  .hero-badges { position: relative; bottom: auto; left: auto; right: auto; margin-top: 40px; gap: 20px; }
  .services-layout { grid-template-columns: 1fr; }
  .lead-form { position: static; }
  .about-inner { grid-template-columns: 1fr; gap: 30px; }
  .about-visual { order: -1; }
  .topbar-right { display: none; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .section { padding: 64px 0; }
  .platform-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .solution-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-gallery { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-badges { flex-direction: column; gap: 14px; }
  .hero-badge .txt { font-size: 12.5px; }
  .stats-strip-inner { grid-template-columns: repeat(2, 1fr); gap: 18px 10px; padding: 28px 0; }
  .stats-strip strong { font-size: 26px; }
}