:root {
  --ink: #203e52;
  --muted: #526d80;
  --blue: #16688d;
  --ice: #eaf6fc;
  --line: #d7e7ef;
  --paper: #ffffff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Arial, Helvetica, sans-serif; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #2384b4; outline-offset: 5px; }
header { height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0 5%; background: #fffffff5; position: sticky; top: 0; z-index: 9; border-bottom: 1px solid var(--line); }
.logo { font-size: 34px; font-weight: 900; letter-spacing: -2px; white-space: nowrap; }
.logo i { color: #2587b5; }
nav { display: flex; gap: 28px; font-size: 13px; }
nav a:hover, .text-link:hover { color: var(--blue); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; background: #cceafa; color: #174d69; padding: 17px 24px; border: 1px solid #b6ddf1; border-radius: 6px; cursor: pointer; font-weight: 600; font-size: 13px; transition: background .2s, box-shadow .2s; }
.button:hover { background: #b8e1f5; box-shadow: 0 5px 16px #2f779315; }
.hero { min-height: 640px; display: grid; grid-template-columns: 1.05fr 1fr; background: linear-gradient(120deg, #e6f4fc 0%, #f4faff 53%, #ffffff 78%); overflow: hidden; }
.hero-copy { padding: 86px 9% 72px; align-self: center; }
.eyebrow { text-transform: uppercase; font-size: 11px; font-weight: 600; letter-spacing: 2px; line-height: 1.8; display: block; margin-bottom: 24px; color: var(--blue); }
h1 { font-size: clamp(44px, 5.1vw, 76px); line-height: 1.08; letter-spacing: -3px; font-weight: 500; margin: 0 0 28px; }
h1 em { color: #247ca5; font-style: normal; }
.hero p { color: var(--muted); line-height: 1.85; max-width: 410px; font-size: 15px; margin-bottom: 32px; }
.hero-art { position: relative; background: white; display: flex; align-items: center; justify-content: center; min-width: 0; min-height: 500px; margin: 42px 7% 42px 0; border: 1px solid #e0eef6; border-radius: 20px; box-shadow: 0 18px 48px #4a8eaa09; }
.hero-product { display: block; width: 94%; height: auto; max-height: 540px; object-fit: contain; }
.art-label { position: absolute; bottom: 26px; left: 26px; right: 26px; font-size: 10px; line-height: 1.7; letter-spacing: 1.5px; color: var(--muted); }
.vertical { position: absolute; right: 16px; top: 30px; writing-mode: vertical-rl; font-size: 9px; letter-spacing: 2px; color: var(--muted); }
.strip { padding: 25px 5%; display: flex; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); font-size: 11px; letter-spacing: 1px; background: #f6fbfe; }
.strip b { color: var(--blue); margin-right: 7px; }
section { padding: 88px 5%; }
.heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 35px; }
h2 { font-size: clamp(32px, 4vw, 52px); line-height: 1.12; font-weight: 500; letter-spacing: -1.8px; margin: 0; }
.heading p { max-width: 355px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 25px; }
.filters button { border: 1px solid var(--line); background: white; color: var(--muted); border-radius: 30px; padding: 11px 18px; cursor: pointer; font-size: 12px; }
.filters button:hover { background: #f0f8fd; }
.filters button.active { background: #dceff9; color: #205875; border-color: #a9d4e9; }
.products { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.card { border: 1px solid var(--line); background: white; border-radius: 10px; overflow: hidden; transition: box-shadow .2s, border-color .2s; }
.card:hover { border-color: #a8d3e8; box-shadow: 0 8px 28px #27627b0d; }
.product-art { height: 235px; background: white; display: grid; place-items: center; position: relative; padding: 14px; border-bottom: 1px solid #edf4f8; }
.product-art img { width: 100%; height: 100%; object-fit: contain; min-height: 0; }
.product-art svg { width: 88%; height: 90%; }
.card-body { padding: 22px; }
.card small { font-size: 9px; letter-spacing: 1.5px; color: var(--blue); }
.card h3 { font-size: 19px; font-weight: 500; margin: 12px 0; }
.card p { font-size: 12px; color: var(--muted); line-height: 1.8; min-height: 44px; }
.text-link { font-size: 12px; font-weight: bold; border-bottom: 1px solid #9ccce2; padding-bottom: 6px; display: inline-block; }
.feature { display: grid; grid-template-columns: 1fr 1fr; background: #eff8fd; padding: 0; }
.feature-visual { min-height: 520px; background: #e1f1fb; display: flex; align-items: center; justify-content: center; position: relative; }
.feature-visual svg { max-width: 500px; width: 90%; }
.feature-copy { padding: 75px 11%; }
.feature-copy p, .about p { font-size: 14px; line-height: 1.9; color: var(--muted); }
.checks { padding: 0; list-style: none; margin: 28px 0; }
.checks li { padding: 13px 0; border-bottom: 1px solid #cedfea; font-size: 13px; line-height: 1.6; }
.checks li:before { content: '↗'; margin-right: 14px; color: var(--blue); }
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 8%; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
.about-grid div { border-top: 1px solid var(--line); padding-top: 20px; }
.about-grid strong { display: block; font-size: 24px; font-weight: 500; margin-bottom: 10px; }
.about-grid span { font-size: 12px; color: var(--muted); line-height: 1.7; }
#factory-gallery { background: #f0f8fd; }
.photo-grid, .detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.detail-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
figure { margin: 0; }
figure img { display: block; width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 8px; }
.detail-grid img { aspect-ratio: 1; object-fit: contain; background: white; border: 1px solid var(--line); padding: 12px; }
figcaption { font-size: 12px; line-height: 1.7; margin-top: 12px; color: var(--muted); }
.factory-building { grid-column: 1/-1; }
.factory-building > a { display: block; padding: 16px; background: white; border: 1px solid var(--line); border-radius: 8px; }
.factory-building img { width: 100%; height: auto; max-height: min(65vh, 640px); aspect-ratio: auto; object-fit: contain; object-position: center; }
.process { background: #e7f4fc; color: var(--ink); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 35px; margin-top: 50px; }
.step { border-top: 1px solid #b9d8e9; padding-top: 25px; }
.step span { font-size: 12px; color: var(--blue); }
.step h3 { font-size: 20px; font-weight: 500; }
.step p { font-size: 13px; color: var(--muted); line-height: 1.8; }
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 8%; }
.contact p { color: var(--muted); line-height: 1.8; font-size: 14px; }
.contact form { padding: 28px; border: 1px solid var(--line); background: #f6fbfe; border-radius: 10px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { font-size: 11px; display: block; margin-bottom: 8px; }
input, select, textarea { width: 100%; min-width: 0; border: 1px solid #b9cfdd; background: white; color: var(--ink); padding: 13px; border-radius: 5px; font-size: 13px; }
textarea { resize: vertical; min-height: 110px; }
.full { grid-column: 1/-1; }
.note { font-size: 11px !important; line-height: 1.7 !important; }
.note a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
footer { padding: 35px 5%; border-top: 1px solid var(--line); background: #f4faff; display: flex; align-items: center; justify-content: space-between; gap: 25px; font-size: 11px; color: var(--muted); line-height: 1.7; }
footer .logo { color: var(--ink); }
.demo-tag { font-size: 10px; line-height: 1.8; color: var(--muted); margin-top: 18px; }
.status { font-size: 13px; line-height: 1.7; }
[hidden], .hidden { display: none !important; }
@media (max-width: 1000px) {
  nav { gap: 18px; }
  header > .button { display: none; }
  .hero-copy { padding: 60px 8%; }
  h1 { letter-spacing: -2px; }
  .products { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact { gap: 5%; }
  .contact form { padding: 22px; }
}
@media (max-width: 620px) {
  html { scroll-padding-top: 110px; }
  header { height: auto; min-height: 88px; padding: 14px 6%; flex-wrap: wrap; gap: 12px; }
  .logo { font-size: 29px; }
  nav { width: 100%; justify-content: space-between; font-size: 11px; gap: 10px; }
  .hero, .feature, .about, .contact { grid-template-columns: 1fr; }
  .hero-copy { padding: 48px 7% 38px; }
  h1 { font-size: clamp(38px, 10.5vw, 58px); letter-spacing: -1.8px; }
  .hero-art { min-height: 320px; margin: 0 6% 28px; }
  .hero-product { max-height: 380px; }
  .art-label { font-size: 8px; bottom: 17px; left: 18px; right: 18px; }
  .vertical { font-size: 8px; }
  .strip { flex-wrap: wrap; font-size: 9px; gap: 16px 12px; }
  .strip span { width: calc(50% - 6px); line-height: 1.7; }
  section { padding: 56px 6%; }
  .heading { display: block; }
  .heading p { max-width: 100%; }
  .products { gap: 12px; }
  .product-art { height: 170px; padding: 8px; }
  .card-body { padding: 15px; }
  .card h3 { font-size: 17px; }
  .card p { min-height: 64px; }
  .feature-visual { min-height: 340px; }
  .feature-copy { padding: 48px 7%; }
  .about { gap: 24px; }
  .about-grid strong { font-size: 21px; }
  .steps { grid-template-columns: 1fr 1fr; gap: 25px; }
  .photo-grid, .detail-grid { grid-template-columns: 1fr; }
  .factory-building > a { padding: 8px; }
  .contact form { margin-top: 22px; padding: 20px; }
  .form-grid { gap: 16px; grid-template-columns: 1fr; }
  footer { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 360px) { .products { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}