:root {
  color-scheme: light;
  --ink: #1d2421;
  --muted: #63706a;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --line: #d9ded8;
  --forest: #0d5b49;
  --forest-2: #17463d;
  --moss: #eef3ef;
  --gold: #b9914b;
  --gold-soft: #f2e3c3;
  --shadow: 0 18px 50px rgba(20, 35, 30, 0.13);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto auto;
  align-items: center;
  gap: 24px;
  min-height: 72px;
  padding: 12px clamp(18px, 5vw, 64px);
  color: #fff;
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}
.site-header[data-elevated="true"] {
  background: rgba(251, 250, 247, 0.96);
  color: var(--ink);
  box-shadow: 0 8px 30px rgba(15, 29, 24, 0.08);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  font-weight: 800;
}
.brand strong,
.brand small { display: block; line-height: 1.2; }
.brand strong { overflow-wrap: anywhere; }
.brand small { margin-top: 3px; font-size: 12px; opacity: 0.82; }
.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: 14px;
  white-space: nowrap;
}
.nav a { opacity: 0.88; }
.nav a:hover { opacity: 1; }
.lang-toggle {
  width: 44px;
  height: 38px;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 92svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: #101713;
}
.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 23, 18, 0.8), rgba(9, 23, 18, 0.42) 48%, rgba(9, 23, 18, 0.08)), linear-gradient(0deg, rgba(9, 23, 18, 0.68), transparent 44%);
}
.hero-content {
  position: relative;
  width: min(790px, calc(100% - 36px));
  margin: 0 0 clamp(64px, 11vh, 116px) clamp(18px, 7vw, 92px);
  color: #fff;
}
.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 18px;
  font-size: clamp(42px, 8vw, 88px);
  line-height: 1.02;
  font-weight: 850;
}
h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4.6vw, 52px);
  line-height: 1.12;
}
h3 {
  margin-bottom: 8px;
  font-size: 21px;
  line-height: 1.25;
}
.hero-copy {
  max-width: 660px;
  margin-bottom: 20px;
  font-size: clamp(17px, 2.3vw, 22px);
  color: rgba(255, 255, 255, 0.9);
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.hero-tags span {
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.1);
  padding: 7px 11px;
  font-size: 13px;
  font-weight: 750;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 800;
}
.button.primary { background: var(--gold); color: #18130a; }
.button.secondary { border-color: rgba(255, 255, 255, 0.72); color: #fff; }

.section,
.section-band { padding: clamp(64px, 9vw, 108px) 0; }
.section-inner {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}
.section-band { background: var(--forest-2); color: #fff; }
.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(300px, 1.14fr);
  gap: clamp(26px, 6vw, 76px);
  align-items: start;
}
.intro-copy > p { margin: 40px 0 24px; color: rgba(255, 255, 255, 0.83); font-size: 18px; }
.intro-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.intro-points article {
  min-height: 138px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}
.intro-points strong,
.intro-points span { display: block; }
.intro-points strong { margin-bottom: 8px; color: #fff; }
.intro-points span { color: rgba(255, 255, 255, 0.78); font-size: 14px; }
.section-head { max-width: 790px; margin-bottom: 34px; }
.section-head p:not(.section-kicker) { color: var(--muted); font-size: 18px; }
.section-head.compact { margin-bottom: 26px; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.product-card {
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.product-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.product-card div { padding: 20px; }
.product-card p { margin-bottom: 0; color: var(--muted); }
.product-card .card-label {
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.muted { background: var(--moss); }
.capability-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}
.capability-copy > p:not(.section-kicker) { color: var(--muted); font-size: 17px; }
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
}
.metrics div {
  min-height: 96px;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
}
.metrics dt { font-weight: 850; color: var(--forest); }
.metrics dd { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.capability-images {
  display: grid;
  grid-template-columns: 1fr 0.82fr;
  gap: 14px;
  align-items: end;
}
.capability-images img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.capability-images img + img { height: 360px; }

.process-section { background: #fff; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.process-grid article {
  min-height: 210px;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.process-grid span {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--gold);
  font-weight: 900;
}
.process-grid p { margin-bottom: 0; color: var(--muted); }

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.showcase-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  background: #ddd;
}
.contact-band {
  background: var(--forest);
  color: #fff;
}
.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(300px, 0.75fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
}
.contact-layout p:not(.section-kicker) { color: rgba(255, 255, 255, 0.82); }
.contact-cards {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}
.contact-cards article {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}
.contact-cards span { color: rgba(255, 255, 255, 0.66); font-size: 13px; }
.contact-cards strong { overflow-wrap: anywhere; }
.inquiry-form {
  display: grid;
  gap: 14px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.inquiry-form label { display: grid; gap: 7px; font-weight: 700; }
.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  padding: 11px 12px;
}
.inquiry-form textarea { resize: vertical; min-height: 128px; }
.upload-field {
  display: grid;
  gap: 8px;
  font-weight: 700;
}
.upload-drop {
  display: grid;
  gap: 5px;
  place-items: center;
  min-height: 132px;
  padding: 20px;
  border: 1px dashed rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-align: center;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease;
}
.upload-drop input { position: absolute; inline-size: 1px; block-size: 1px; opacity: 0; pointer-events: none; }
.upload-drop small { max-width: 360px; color: rgba(255, 255, 255, 0.72); font-weight: 500; }
.upload-drop.is-dragging,
.upload-drop:hover { border-color: var(--gold); background: rgba(255, 255, 255, 0.16); }
.file-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.file-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 600;
}
.file-list .file-empty { justify-content: center; color: rgba(255, 255, 255, 0.62); }
.file-list button {
  width: 26px;
  height: 26px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-weight: 800;
}
.form-status { margin: 0; font-size: 13px; }
.form-status { color: var(--gold-soft); font-weight: 750; min-height: 22px; white-space: pre-wrap; }
.site-footer { padding: 24px 0; background: #111815; color: rgba(255, 255, 255, 0.82); }
.footer-inner { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-size: 14px; }

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: minmax(210px, 1fr) auto;
    gap: 12px;
    min-height: 68px;
  }
  .nav {
    grid-column: 1 / -1;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
  }
  .lang-toggle { grid-column: 2; grid-row: 1; }
  .metrics,
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 920px) {
  .hero { min-height: 88svh; }
  .hero-content { margin-left: 18px; }
  .intro-grid,
  .capability-layout,
  .contact-layout { grid-template-columns: 1fr; }
  .intro-copy > p { margin-top: 0; }
  .product-grid,
  .showcase-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .site-header { padding-inline: 14px; }
  .brand strong { font-size: 14px; }
  .brand small { font-size: 11px; }
  .brand-mark { width: 38px; height: 38px; }
  .nav { overflow-x: auto; justify-content: flex-start; padding-bottom: 2px; }
  .nav a { flex: 0 0 auto; }
  .hero-media { object-position: center; }
  .hero-content { width: calc(100% - 32px); margin-bottom: 52px; }
  .button { width: 100%; }
  .product-grid,
  .showcase-grid,
  .metrics,
  .process-grid,
  .intro-points { grid-template-columns: 1fr; }
  .capability-images { grid-template-columns: 1fr; }
  .capability-images img,
  .capability-images img + img { height: 330px; }
  h1 { font-size: 42px; }
  h2 { font-size: 30px; }
}