:root {
    --ink: #1d2b3a;
    --ink-soft: #45566b;
    --wine: #6d1f2c;
    --wine-deep: #4a131c;
    --gold: #c9a86a;
    --mist: #f1f4ff;
    --mist-2: #e6ecf9;
    --paper: #ffffff;
    --line: rgba(29, 43, 58, 0.10);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Manrope', sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  h1, h2, h3, .serif { font-family: 'Cormorant Garamond', serif; }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  .wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

  /* ---------- Nav ---------- */
  header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }
  .nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
  .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.02em; font-size: 15px; }
  .brand .logo {
    width: 41px; height: 40px; display: block;
    background: url('https://sc02.alicdn.com/kf/H24d379b665bd47e2a9d21123683a1fbcd.jpg') no-repeat;
    background-size: 242px 55px;
    background-position: -25px -5px;
  }
  .foot-logo {
    width: 35px; height: 34px;
    background-color: #fff; border-radius: 6px;
    background-image: url('https://sc02.alicdn.com/kf/H24d379b665bd47e2a9d21123683a1fbcd.jpg');
    background-repeat: no-repeat;
    background-size: 206px 46px;
    background-position: -21px -4px;
  }
  .brand .mark {
    width: 34px; height: 34px; border-radius: 50%;
    background: linear-gradient(135deg, var(--wine), var(--wine-deep));
    display: grid; place-items: center; color: var(--gold);
    font-family: 'Cormorant Garamond', serif; font-size: 18px; font-weight: 700;
  }
  .nav-links { display: flex; gap: 26px; font-size: 13.5px; font-weight: 600; color: var(--ink-soft); }
  .nav-links a:hover { color: var(--wine); }
  .nav-cta {
    background: var(--wine); color: #fff; padding: 10px 20px; border-radius: 999px;
    font-size: 13px; font-weight: 700; letter-spacing: 0.03em;
    transition: background 0.25s ease, transform 0.25s ease;
  }
  .nav-cta:hover { background: var(--wine-deep); transform: translateY(-1px); }
  .nav-burger { display: none; background: none; border: 0; font-size: 24px; color: var(--ink); cursor: pointer; line-height: 1; }

  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    background:
      radial-gradient(900px 480px at 85% -10%, rgba(201, 168, 106, 0.22), transparent 60%),
      radial-gradient(760px 520px at -10% 110%, rgba(109, 31, 44, 0.10), transparent 60%),
      linear-gradient(160deg, var(--mist) 0%, #f7f9ff 55%, var(--mist-2) 100%);
    padding: 92px 0 0;
    overflow: hidden;
  }
  .hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 52px; align-items: center; }
  .eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--wine); background: rgba(109, 31, 44, 0.07);
    padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
  }
  .hero h1 { font-size: clamp(38px, 5.2vw, 62px); line-height: 1.08; font-weight: 600; letter-spacing: -0.01em; }
  .hero h1 em { font-style: italic; color: var(--wine); }
  .hero p.lead { margin: 20px 0 28px; font-size: 16.5px; color: var(--ink-soft); max-width: 540px; }
  .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
  .btn {
    display: inline-block; padding: 14px 28px; border-radius: 999px;
    font-size: 14px; font-weight: 700; letter-spacing: 0.02em;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  }
  .btn-primary { background: var(--wine); color: #fff; box-shadow: 0 10px 26px rgba(109, 31, 44, 0.28); }
  .btn-primary:hover { background: var(--wine-deep); transform: translateY(-2px); }
  .btn-ghost { border: 1.5px solid rgba(29, 43, 58, 0.25); color: var(--ink); background: rgba(255,255,255,0.5); }
  .btn-ghost:hover { border-color: var(--wine); color: var(--wine); transform: translateY(-2px); }
  .hero-media { position: relative; }
  .hero-media img {
    width: 100%; border-radius: 22px;
    box-shadow: 0 34px 70px rgba(29, 43, 58, 0.22);
    border: 1px solid rgba(255,255,255,0.7);
  }
  .hero-badge {
    position: absolute; left: -14px; bottom: 20px;
    background: rgba(255,255,255,0.92); backdrop-filter: blur(8px);
    border-radius: 14px; padding: 12px 18px;
    box-shadow: 0 14px 34px rgba(29, 43, 58, 0.16);
    font-size: 12.5px; font-weight: 600; display: flex; align-items: center; gap: 10px;
  }
  .hero-badge .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--wine); box-shadow: 0 0 0 4px rgba(109,31,44,0.15); }

  /* ---------- Stats bar ---------- */
  .stats { border-block: 1px solid var(--line); background: var(--paper); margin-top: 72px; }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
  .stat { padding: 26px 22px; text-align: center; border-right: 1px solid var(--line); }
  .stat:last-child { border-right: 0; }
  .stat strong { display: block; font-family: 'Cormorant Garamond', serif; font-size: 30px; color: var(--wine); }
  .stat span { font-size: 13px; color: var(--ink-soft); font-weight: 600; }

  /* ---------- Sections ---------- */
  section { padding: 84px 0; }
  .sec-head { max-width: 680px; margin-bottom: 46px; }
  .sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
  .sec-kicker {
    font-size: 12px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--gold); margin-bottom: 12px;
  }
  .sec-head h2 { font-size: clamp(30px, 3.6vw, 42px); font-weight: 600; line-height: 1.15; }
  .sec-head p { margin-top: 14px; color: var(--ink-soft); font-size: 15.5px; }

  /* ---------- Trust ---------- */
  .trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
  .trust-card {
    border-radius: 18px; padding: 28px 24px; border: 1px solid var(--line);
    background: #fff; transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .trust-card:hover { transform: translateY(-5px); box-shadow: 0 20px 44px rgba(29, 43, 58, 0.12); }
  .trust-card .ico { font-size: 26px; margin-bottom: 12px; }
  .trust-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 6px; }
  .trust-card p { font-size: 13.5px; color: var(--ink-soft); }

  /* ---------- Craft matrix ---------- */
  .craft { background: linear-gradient(180deg, var(--mist) 0%, #f8faff 100%); }
  .craft-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .craft-card {
    border-radius: 18px; overflow: hidden; background: #fff;
    border: 1px solid var(--line);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .craft-card:hover { transform: translateY(-6px); box-shadow: 0 24px 48px rgba(29, 43, 58, 0.14); }
  .craft-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
  .craft-card .body { padding: 18px 20px 22px; }
  .craft-card .tag { font-size: 11px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); }
  .craft-card h3 { font-size: 20px; margin: 5px 0 8px; font-weight: 600; }
  .craft-card p { font-size: 13px; color: var(--ink-soft); }
  .craft-card .meta { margin-top: 12px; font-size: 11.5px; font-weight: 700; color: var(--wine); }

  /* ---------- Factory capability ---------- */
  .cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .cap-card {
    border-radius: 16px; padding: 26px 24px; border: 1px solid var(--line);
    background: #fff;
  }
  .cap-card .ico { font-size: 24px; margin-bottom: 10px; }
  .cap-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
  .cap-card ul { list-style: none; display: grid; gap: 7px; }
  .cap-card li { font-size: 13.5px; color: var(--ink-soft); display: flex; gap: 8px; }
  .cap-card li::before { content: "•"; color: var(--gold); font-weight: 800; }

  /* ---------- Spec table ---------- */
  .spec { background: linear-gradient(180deg, #f8faff 0%, var(--mist) 100%); }
  .spec-table { width: 100%; border-collapse: collapse; background: var(--paper); border-radius: 16px; overflow: hidden;
    border: 1px solid var(--line); box-shadow: 0 18px 44px rgba(29, 43, 58, 0.08); }
  .spec-table th, .spec-table td { padding: 14px 20px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); }
  .spec-table th { background: var(--ink); color: #fff; font-weight: 700; font-size: 12.5px; letter-spacing: 0.06em; text-transform: uppercase; }
  .spec-table tr:last-child td { border-bottom: 0; }
  .spec-table td:first-child { font-weight: 700; color: var(--wine); white-space: nowrap; }
  .spec-table tr:hover td { background: rgba(241, 244, 255, 0.55); }

  /* ---------- Applications ---------- */
  .apps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .app-card {
    border-radius: 18px; padding: 28px 24px; border: 1px solid var(--line);
    background: #fff; transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .app-card:hover { transform: translateY(-5px); box-shadow: 0 20px 44px rgba(29, 43, 58, 0.12); }
  .app-card .ico { font-size: 26px; margin-bottom: 12px; }
  .app-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 6px; }
  .app-card p { font-size: 13px; color: var(--ink-soft); }

  /* ---------- Process ---------- */
  .process { background: linear-gradient(180deg, var(--mist) 0%, #f8faff 100%); }
  .process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
  .p-step { position: relative; padding: 24px 20px; border-radius: 16px; background: var(--paper);
    border: 1px solid var(--line); }
  .p-step .idx { font-family: 'Cormorant Garamond', serif; font-size: 38px; font-weight: 700; color: rgba(201, 168, 106, 0.55); line-height: 1; }
  .p-step h3 { font-size: 16px; margin: 10px 0 6px; font-weight: 600; }
  .p-step p { font-size: 12.5px; color: var(--ink-soft); }

  /* ---------- FAQ ---------- */
  .faq-list { max-width: 780px; margin: 0 auto; display: grid; gap: 14px; }
  details {
    border: 1px solid var(--line); border-radius: 14px; background: #fff;
    padding: 20px 24px; transition: box-shadow 0.25s ease;
  }
  details[open] { box-shadow: 0 14px 34px rgba(29, 43, 58, 0.10); }
  summary { cursor: pointer; font-weight: 700; font-size: 15.5px; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
  summary::after { content: "+"; font-size: 22px; color: var(--wine); font-weight: 600; transition: transform 0.25s ease; }
  details[open] summary::after { transform: rotate(45deg); }
  details p { margin-top: 12px; font-size: 14px; color: var(--ink-soft); }

  /* ---------- CTA ---------- */
  .cta {
    background:
      radial-gradient(700px 380px at 80% 0%, rgba(201, 168, 106, 0.18), transparent 60%),
      linear-gradient(150deg, var(--wine-deep) 0%, var(--wine) 100%);
    color: #fff; text-align: center;
  }
  .cta h2 { font-size: clamp(30px, 3.8vw, 44px); font-weight: 600; }
  .cta p { margin: 14px auto 30px; max-width: 520px; color: rgba(255,255,255,0.82); font-size: 15.5px; }
  .btn-light { background: #fff; color: var(--wine); }
  .btn-light:hover { background: var(--gold); color: var(--wine-deep); transform: translateY(-2px); }

  /* ---------- Footer ---------- */
  footer { background: var(--ink); color: rgba(255,255,255,0.72); padding: 40px 0; font-size: 13px; }
  .foot { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
  .foot .brand { color: #fff; }
  .foot a:hover { color: var(--gold); }

  /* ---------- Reveal ---------- */
  .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
  .reveal.visible { opacity: 1; transform: translateY(0); }

  /* ---------- Responsive: tablet ---------- */
  @media (max-width: 920px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero { padding: 64px 0 0; }
    .hero-media img { max-width: 560px; margin: 0 auto; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(2) { border-right: 0; }
    .stat { border-bottom: 1px solid var(--line); }
    .stat:nth-child(n+3) { border-bottom: 0; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .craft-grid { grid-template-columns: repeat(2, 1fr); }
    .cap-grid { grid-template-columns: 1fr 1fr; }
    .apps-grid { grid-template-columns: 1fr 1fr; }
    .process-steps { grid-template-columns: repeat(3, 1fr); }
    .nav-links { display: none; }
    .nav-burger { display: block; }
    .nav-links.open {
      display: flex; flex-direction: column; gap: 16px; position: absolute; top: 68px; left: 0; right: 0;
      background: #fff; padding: 22px 24px; border-bottom: 1px solid var(--line); box-shadow: 0 18px 40px rgba(29,43,58,0.12);
    }
    .spec-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 16px; }
    .spec-table { min-width: 640px; }
  }

  /* ---------- Responsive: mobile ---------- */
  @media (max-width: 620px) {
    section { padding: 64px 0; }
    .hero-badge { left: 10px; bottom: 12px; }
    .nav-cta { display: none; }
    .brand .logo { width: 35px; height: 34px; background-size: 206px 46px; background-position: -21px -4px; }
    .foot-logo { width: 31px; height: 30px; background-size: 181px 41px; background-position: -19px -4px; }
    .trust-grid { grid-template-columns: 1fr; }
    .craft-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: 1fr; }
    .apps-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat strong { font-size: 26px; }
    .hero-actions .btn { width: 100%; text-align: center; }
  }