:root {
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  color: #dfe4e9;
  background: #111820;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid #a7bfd5; outline-offset: 6px; }
header, main, footer { max-width: 1440px; margin: auto; }

header {
  height: 112px;
  padding: 0 7%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #ffffff15;
}

.identity { display: flex; gap: 14px; align-items: center; font-size: 19px; letter-spacing: 3px; }
.identity small { display: block; font-size: 9px; letter-spacing: 2px; margin-top: 7px; color: #8e9dab; }
nav { display: flex; align-items: center; gap: 35px; font-size: 14px; color: #a5b1bd; }
.nav-entry { border: 1px solid #536171; padding: 12px 18px; color: #e2e8ed; }
main { padding: 0 7%; }

.hero { padding: 30px 0 0; overflow: hidden; }
.hero-top { display: flex; justify-content: space-between; font-size: 10px; letter-spacing: 2px; color: #7f91a3; }
.hero-top span:last-child { letter-spacing: 1px; }
.eyebrow { font-size: 10px; letter-spacing: 2.7px; margin: 100px 0 30px; color: #8b9fae; }
h1 { font-size: clamp(38px, 4.8vw, 69px); font-weight: 450; line-height: 1.5; letter-spacing: -2px; margin: 0; }
h1 span { color: #8eabc1; }
.hero-bottom { display: flex; justify-content: space-between; align-items: end; margin-top: 34px; }
.hero-bottom p { font-size: 16px; line-height: 1.9; color: #96a3af; margin: 0; }
.hero-bottom a { font-size: 14px; border-bottom: 1px solid #516576; padding: 12px 0; min-width: 200px; display: flex; justify-content: space-between; }
.hero-bottom a span { font-size: 22px; }
.universe-word { font-size: clamp(70px, 14vw, 200px); font-weight: 600; line-height: 1.25; letter-spacing: -10px; color: #ffffff06; -webkit-text-stroke: 1px #ffffff1a; white-space: nowrap; margin-top: 62px; }
.universe-word span { font-weight: 300; margin-left: 25px; color: #829db6; -webkit-text-stroke: 0; }

.about { border-top: 1px solid #ffffff20; padding: 72px 0 85px; display: grid; grid-template-columns: 1fr 3fr; gap: 35px; }
.section-label { font-size: 12px; letter-spacing: 1px; color: #91a1b0; margin: 0; }
.about > div { display: grid; grid-template-columns: 1fr 1.1fr; gap: 50px; }
h2 { font-size: 35px; line-height: 1.6; font-weight: 450; margin: 0; letter-spacing: -1px; }
.about-copy p { font-size: 15px; line-height: 2; color: #9aa8b5; margin: 0 0 16px; }
.about-copy p:first-child { color: #dbe2e8; }

.products { border-top: 1px solid #ffffff20; padding: 35px 0 80px; }
.section-top { display: flex; justify-content: space-between; margin-bottom: 35px; }
.section-top > span { font-size: 12px; color: #758896; }
.product-list { display: grid; gap: 20px; }
.product { background: #eaf0e2; color: #243326; display: grid; grid-template-columns: 1.4fr 1fr; transition: background .2s; }
.product:hover { background: #f0f5e9; }
.product-info { padding: 52px; }
.product-category { font-size: 10px; letter-spacing: 2px; color: #6c7b65; }
.product h2 { display: flex; align-items: center; gap: 14px; font-size: 40px; font-weight: 650; margin: 26px 0 22px; letter-spacing: -1.5px; }
.product h2 img { border-radius: 12px; object-fit: contain; }
.product h3 { font-size: 22px; font-weight: 450; margin: 0 0 16px; }
.product p { font-size: 14px; line-height: 1.9; color: #718168; margin: 0; }
.product-link { display: flex; align-items: center; justify-content: space-between; max-width: 260px; border-bottom: 1px solid #a9b89a; margin-top: 32px; padding: 14px 0; font-size: 14px; }
.product-link b { font-size: 22px; font-weight: 400; }
.product-link-muted { color: #64717a; border-color: #9eabb4; }
.product-sign { border-left: 1px solid #24332615; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 32px; background: #dce5d3; }
.product-sign > img { width: 152px; height: 152px; object-fit: contain; border-radius: 40px; transform: rotate(-9deg); }
.product-sign > span { font-size: 13px; line-height: 1.5; letter-spacing: 3px; color: #6e7f63; text-align: center; }
.product-chitu { background: #f2e6e1; }
.product-chitu:hover { background: #f7ede9; }
.product-chitu .product-category { color: #a15d4b; }
.product-chitu .product-sign { background: #ead5cf; }
.product-chitu .product-sign > span { color: #995b4d; }
.product-ranzhang { background: #e7ecef; }
.product-ranzhang:hover { background: #edf1f3; }
.product-ranzhang .product-category { color: #637786; }
.product-ranzhang .product-sign { background: #d9e2e7; }
.product-ranzhang .product-sign > span { color: #617887; }
.product-chitu .product-sign > img, .product-ranzhang .product-sign > img { transform: none; border-radius: 28px; width: 160px; height: 160px; }
.product-chitu p { color: #795d58; }
.product-ranzhang p { color: #596879; }

.closing { text-align: center; padding: 70px 0 90px; border-top: 1px solid #ffffff20; }
.closing > span { font-size: 10px; color: #8196a7; letter-spacing: 3px; }
.closing h2 { font-size: 36px; margin: 22px 0 28px; }
.closing a { font-size: 14px; color: #b4c4d0; }
footer { padding: 35px 7%; border-top: 1px solid #ffffff20; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
footer .identity { font-size: 15px; }
footer .identity small { font-size: 8px; }
footer p, footer > a:last-child { font-size: 11px; color: #81909c; }

@media (max-width: 800px) {
  header { height: 90px; padding: 0 6%; }
  nav { gap: 18px; }
  nav > a:first-child { display: none; }
  .nav-entry { padding: 9px; font-size: 12px; }
  .identity { font-size: 16px; gap: 10px; }
  .identity small { font-size: 8px; letter-spacing: 1px; }
  .identity img { width: 30px; height: 30px; }
  main { padding: 0 6%; }
  .eyebrow { margin-top: 65px; font-size: 8px; }
  .hero-top { font-size: 8px; letter-spacing: 1px; }
  .hero-bottom { align-items: start; gap: 24px; flex-direction: column; }
  .hero-bottom p { font-size: 14px; }
  .universe-word { letter-spacing: -5px; margin-top: 50px; }
  .about { grid-template-columns: 1fr; padding: 40px 0; gap: 28px; }
  .about > div { grid-template-columns: 1fr; gap: 25px; }
  .about h2 { font-size: 30px; }
  .about h2 br { display: none; }
  .section-top { gap: 15px; }
  .section-top > span { font-size: 10px; }
  .products { padding-bottom: 45px; }
  .product { grid-template-columns: 1fr; }
  .product-info { padding: 30px; }
  .product-sign { display: none; }
  .product h2 { font-size: 34px; }
  .product h3 { font-size: 20px; }
  .product p br { display: none; }
  .closing { padding: 45px 0 55px; }
  .closing h2 { font-size: 26px; }
  footer { flex-wrap: wrap; padding: 25px 6%; }
  footer p { order: 3; flex-basis: 100%; font-size: 10px; }
  h1 { letter-spacing: -1px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .product { transition: none; }
}