:root {
  color-scheme: light;
  --page: #fffdf9;
  --surface: #f5f1e9;
  --ink: #302a24;
  --muted: #6e6358;
  --accent: #825b38;
  --line: #ddd4c7;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; background: var(--page); color: var(--ink); font: 16px/1.8 "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; }
a { color: inherit; text-underline-offset: 5px; }
a:hover { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure, dl, dd { margin: 0; }
h1, h2, h3 { font-weight: 600; }
h1 { font-size: clamp(32px, 3.2vw, 46px); line-height: 1.4; }
h2 { font-size: clamp(26px, 2.5vw, 34px); line-height: 1.5; margin-bottom: 14px; }
h3 { font-size: 19px; line-height: 1.6; }
p + p { margin-top: 14px; }
code { font-size: .92em; overflow-wrap: anywhere; }
.container { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 16px; padding: 10px 18px; background: white; z-index: 10; }
.skip-link:focus { top: 12px; }
.header { position: sticky; top: 0; z-index: 5; background: var(--page); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 84px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; text-decoration: none; font-size: 22px; font-weight: 600; line-height: 1.3; }
.brand img { width: 42px; height: 42px; border-radius: 9px; }
.brand small { display: block; color: var(--muted); font-size: 12px; font-weight: 400; letter-spacing: 2px; margin-top: 3px; }
nav { display: flex; flex-wrap: wrap; gap: 12px 26px; }
nav a { font-size: 14px; text-decoration: none; padding-block: 10px; }
.hero { display: grid; grid-template-columns: 1.06fr 1fr; align-items: center; gap: 64px; padding-block: 64px; }
.eyebrow { color: var(--accent); font-size: 14px; margin-bottom: 14px; font-weight: 600; }
.lead { margin-top: 24px; color: var(--muted); max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 46px; padding: 8px 24px; border: 1px solid var(--accent); background: var(--accent); color: white; text-decoration: none; border-radius: 4px; }
.button:hover { background: #664329; color: white; }
.button.secondary { background: transparent; color: var(--accent); }
.button.secondary:hover { background: var(--surface); }
.caption { font-size: 13px; color: var(--muted); margin-top: 20px; }
.hero-image { position: relative; }
.hero-image img { width: 100%; aspect-ratio: 1.15; object-fit: cover; border-radius: 6px; }
.hero-image figcaption { position: absolute; bottom: 14px; left: 14px; right: 14px; color: white; background: #302a24e8; font-size: 13px; padding: 8px 14px; border-radius: 3px; }
.section { padding-block: 64px; }
.section-tint { background: var(--surface); }
.section-heading { max-width: 760px; margin-bottom: 32px; }
.section-heading > p:last-child, .feature-grid p, .product p, .about-grid p, .contact-grid p { color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 30px; }
.feature-grid article { border-top: 1px solid var(--line); padding-top: 18px; }
.step { color: var(--accent); font-size: 14px; }
.feature-grid h3 { margin: 8px 0 10px; }
.feature-grid p { font-size: 15px; }
.section-note { margin-top: 28px; color: var(--muted); font-size: 14px; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.product { border: 1px solid var(--line); background: var(--page); border-radius: 5px; overflow: hidden; }
.product img { width: 100%; aspect-ratio: 1.25; object-fit: cover; }
.product > div { padding: 22px; }
.product p.product-type { margin-bottom: 5px; color: var(--accent); font-size: 13px; }
.product h3 { margin-bottom: 10px; }
.product p { font-size: 14px; }
.text-link { display: inline-block; color: var(--accent); font-size: 14px; margin-top: 18px; }
.screen-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.screen-grid figure > a { display: block; border: 1px solid #cec2b2; border-radius: 14px; padding: 5px; background: white; overflow: hidden; }
.screen-grid img { width: 100%; aspect-ratio: 1 / 2; border-radius: 9px; }
.screen-grid figcaption { margin-top: 18px; }
.screen-grid h3 { font-size: 17px; }
.screen-grid p { font-size: 14px; color: var(--muted); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.company-info { border-top: 1px solid var(--line); margin-top: 6px; }
.company-info > div { padding-block: 15px; border-bottom: 1px solid var(--line); }
.company-info dt { font-size: 13px; color: var(--muted); margin-bottom: 2px; }
.company-info dd { font-size: 15px; }
.contact-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 100px; }
.phone { display: inline-block; color: var(--accent); font-size: 30px; text-decoration: none; margin-top: 14px; }
.service-links { border-left: 1px solid var(--line); padding-left: 40px; }
.service-links > a { display: flex; justify-content: space-between; padding-block: 12px; border-bottom: 1px solid var(--line); text-decoration: none; }
.service-links > p { font-size: 13px; margin-top: 14px; }
.footer { background: #ede7dd; color: #5e5145; font-size: 13px; padding-block: 24px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; }
.footer-inner > div { display: flex; gap: 20px; }
.legal { max-width: 860px; min-height: 70vh; padding-block: 46px 64px; }
.legal .back-link { display: inline-block; color: var(--accent); font-size: 14px; margin-bottom: 26px; }
.legal h1 { font-size: 32px; margin-bottom: 18px; }
.legal h2 { font-size: 21px; margin: 30px 0 10px; }
.legal p, .legal li { color: #51483f; }
.legal ul, .legal ol { padding-left: 1.5em; }
.legal li + li { margin-top: 8px; }
@media (max-width: 1000px) {
  .hero { gap: 32px; }
  .feature-grid, .screen-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .screen-grid { gap: 32px 50px; max-width: 680px; margin-inline: auto; }
  .about-grid, .contact-grid { gap: 40px; }
  .product-grid { gap: 16px; }
  nav { gap: 8px 16px; }
}
@media (max-width: 700px) {
  html { scroll-padding-top: 140px; }
  .container { width: calc(100% - 40px); }
  .header-inner { display: block; padding-block: 12px 6px; }
  .brand { font-size: 19px; }
  .brand img { width: 36px; height: 36px; }
  .brand small { display: inline; margin-left: 10px; font-size: 12px; letter-spacing: normal; }
  nav { margin-top: 7px; gap: 0; justify-content: space-between; }
  nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; padding-block: 6px; }
  .hero { grid-template-columns: 1fr; padding-block: 38px; gap: 28px; }
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  .hero-image img { aspect-ratio: 1.45; }
  .section { padding-block: 42px; }
  .section-heading { margin-bottom: 24px; }
  .feature-grid { gap: 24px; }
  .feature-grid h3 { font-size: 18px; }
  .product-grid { grid-template-columns: 1fr; gap: 22px; }
  .product img { aspect-ratio: 1.5; }
  .screen-grid { gap: 24px 16px; }
  .screen-grid figcaption { margin-top: 10px; }
  .screen-grid h3 { font-size: 16px; }
  .screen-grid p { font-size: 13px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .service-links { border-left: 0; border-top: 1px solid var(--line); padding: 24px 0 0; }
  .footer-inner { display: grid; gap: 10px; }
  .legal { padding-top: 26px; }
  .legal h1 { font-size: 27px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }