:root {
  --ink: #171a1d;
  --muted: #656b70;
  --line: #dfe2e3;
  --paper: #f5f6f4;
  --white: #fff;
  --green: #2c4a40;
  --gold: #b48b4e;
  --red: #8b2f2d;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 76px;
  padding: 0 clamp(24px, 5vw, 80px);
  display: grid;
  grid-template-columns: 180px 1fr auto;
  align-items: center;
  gap: 32px;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
}
.brand img { width: 132px; height: 44px; object-fit: contain; }
.desktop-nav { display: flex; justify-content: center; gap: clamp(22px, 3vw, 48px); font-size: 14px; }
.desktop-nav a:hover { color: var(--red); }
.header-contact { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 700; }
.header-contact svg, .button svg, .text-link svg { width: 17px; height: 17px; }
.menu-button { display: none; border: 0; background: none; padding: 8px; }
.mobile-nav { display: none; }

.hero {
  max-width: 1440px;
  min-height: calc(100vh - 76px);
  margin: auto;
  padding: clamp(42px, 6vw, 88px) clamp(24px, 6vw, 96px);
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(380px, .75fr);
  gap: clamp(40px, 7vw, 110px);
  align-items: center;
}
.eyebrow { margin: 0 0 16px; color: var(--red); font-size: 12px; font-weight: 800; }
h1, h2, h3, p { letter-spacing: 0; }
h1 { margin: 0; font-size: clamp(48px, 6vw, 86px); line-height: 1.08; font-weight: 700; }
h2 { margin: 0; font-size: clamp(30px, 3.8vw, 52px); line-height: 1.2; }
.hero-lead { max-width: 560px; margin: 24px 0 0; color: var(--muted); font-size: clamp(18px, 2vw, 23px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  min-height: 48px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 700;
}
.button.primary { background: var(--ink); color: var(--white); }
.button.secondary { background: var(--white); }
.button:hover { transform: translateY(-1px); }
.hero-facts { margin: 48px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.hero-facts div { padding: 20px 18px 0 0; }
.hero-facts dt { font-size: 14px; font-weight: 800; }
.hero-facts dd { margin: 5px 0 0; color: var(--muted); font-size: 12px; }
.hero-media { position: relative; margin: 0; max-width: 540px; justify-self: end; }
.hero-media img { aspect-ratio: 3 / 4; object-fit: cover; }
.hero-media figcaption { position: absolute; left: -18px; bottom: 24px; padding: 12px 16px; background: var(--white); border-left: 3px solid var(--gold); font-size: 13px; }

.section { max-width: 1280px; margin: auto; padding: 100px clamp(24px, 5vw, 64px); }
.section-heading { display: grid; grid-template-columns: 1fr 360px; gap: 40px; align-items: end; margin-bottom: 42px; }
.section-heading > p { color: var(--muted); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
.product-card { border: 1px solid var(--line); background: var(--white); }
.product-card img { aspect-ratio: 3 / 4; object-fit: cover; }
.product-card div { padding: 20px; }
.product-card h3 { margin: 0; font-size: 20px; }
.product-card p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.product-card.featured { margin-top: 38px; }

.craft-band { padding: 100px max(24px, calc((100vw - 1152px) / 2)); background: var(--green); color: var(--white); }
.craft-intro { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; align-items: end; }
.craft-intro > p:last-child { color: #c8d0cc; }
.craft-band .eyebrow { color: #e0b878; }
.craft-list { margin-top: 64px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.25); }
.craft-list article { min-height: 200px; padding: 28px 24px 0 0; }
.craft-list svg { width: 28px; height: 28px; color: #e0b878; }
.craft-list h3 { margin: 22px 0 6px; font-size: 18px; }
.craft-list p { margin: 0; color: #c8d0cc; font-size: 14px; }

.cases { display: grid; grid-template-columns: 1fr .85fr; gap: clamp(46px, 8vw, 110px); align-items: center; }
.case-visual img { max-height: 720px; object-fit: cover; }
.case-copy > p:not(.eyebrow) { color: var(--muted); }
.case-copy ul { margin: 28px 0; padding: 24px 0; border-block: 1px solid var(--line); list-style: none; }
.case-copy li { display: flex; gap: 10px; align-items: center; margin: 10px 0; font-size: 14px; }
.case-copy li svg { width: 17px; color: var(--green); }
.text-link { display: inline-flex; align-items: center; gap: 10px; color: var(--red); font-weight: 800; }

.about-band { max-width: 1280px; margin: auto; padding: 70px clamp(24px, 5vw, 64px); display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; border-top: 1px solid var(--line); }
.about-band > p { align-self: end; color: var(--muted); }
.contact-band { padding: 70px max(24px, calc((100vw - 1152px) / 2)); display: flex; justify-content: space-between; align-items: center; gap: 40px; background: var(--red); color: var(--white); }
.contact-band .eyebrow { color: #f1c8c5; }
.contact-band h2 { font-size: clamp(30px, 3.2vw, 46px); }
.contact-band p { margin-bottom: 0; color: #f0d9d8; }
.button.light { flex: 0 0 auto; background: var(--white); color: var(--red); border-color: var(--white); }
footer { padding: 34px clamp(24px, 5vw, 80px); display: grid; grid-template-columns: 1fr auto auto; gap: 36px; align-items: center; font-size: 12px; color: var(--muted); }
footer img { width: 105px; height: 35px; object-fit: contain; }

@media (max-width: 860px) {
  .site-header { height: 64px; grid-template-columns: 1fr auto; padding-inline: 18px; }
  .brand img { width: 112px; height: 38px; }
  .desktop-nav, .header-contact { display: none; }
  .menu-button { display: block; }
  .mobile-nav { position: fixed; z-index: 19; top: 64px; inset-inline: 0; padding: 12px 20px 18px; background: var(--white); border-bottom: 1px solid var(--line); }
  .mobile-nav.open { display: grid; gap: 2px; }
  .mobile-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .hero { min-height: auto; padding-top: 46px; grid-template-columns: 1fr; gap: 42px; }
  .hero-media { justify-self: stretch; max-width: none; }
  .hero-media img { aspect-ratio: 4 / 5; object-position: center top; }
  .hero-facts { grid-template-columns: 1fr; }
  .hero-facts div { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .section { padding-block: 72px; }
  .section-heading, .craft-intro, .cases, .about-band { grid-template-columns: 1fr; gap: 28px; }
  .section-heading { margin-bottom: 28px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card.featured { margin-top: 0; }
  .product-card { display: grid; grid-template-columns: 42% 1fr; align-items: center; }
  .product-card img { height: 260px; }
  .craft-band { padding-block: 72px; }
  .craft-list { grid-template-columns: 1fr 1fr; }
  .craft-list article { min-height: 170px; }
  .about-band { padding-block: 64px; }
  .contact-band { align-items: flex-start; flex-direction: column; }
  footer { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 480px) {
  h1 { font-size: 45px; }
  .hero { padding-inline: 18px; }
  .hero-actions .button { width: 100%; }
  .product-card { grid-template-columns: 1fr; }
  .product-card img { height: auto; aspect-ratio: 4 / 5; }
  .craft-list { grid-template-columns: 1fr; }
  .craft-list article { min-height: 0; padding-bottom: 26px; border-bottom: 1px solid rgba(255,255,255,.2); }
}