:root {
  --ink: #17343b;
  --pine: #234f4b;
  --deep: #153d3a;
  --snow: #f7f8f4;
  --ice: #dcecef;
  --wheat: #d9bd82;
  --paper: #f1eee4;
  --line: rgba(23, 52, 59, .16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--snow); }
body {
  margin: 0;
  background: var(--snow);
  color: var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", "Yu Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.wrap { width: min(1160px, calc(100% - 48px)); margin: auto; }

.header {
  position: absolute;
  z-index: 10;
  inset: 0 0 auto;
  height: 100px;
  padding: 0 clamp(24px, 5vw, 80px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
}
.header-dark { color: var(--deep); }
.header-dark .nav a:hover,
.header-dark .nav a.active { border-color: var(--deep); }
.brand { display: flex; align-items: center; gap: 12px; }
.mark {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font: 23px "Yu Mincho", serif;
}
.brand strong { display: block; font: 700 22px/1 Arial, sans-serif; letter-spacing: .14em; }
.brand small { display: block; margin-top: 5px; font: 600 8px Arial, sans-serif; letter-spacing: .2em; }
.nav { display: flex; gap: clamp(25px, 4vw, 54px); }
.nav a { padding: 10px 0; border-bottom: 1px solid transparent; font-size: 13px; letter-spacing: .08em; }
.nav a:hover, .nav a.active { border-color: currentColor; }
.menu { display: none; }

.hero {
  min-height: 700px;
  position: relative;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 78% 25%, rgba(217,189,130,.28), transparent 13%),
    linear-gradient(135deg, #326763, var(--deep));
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .18;
  background-image: radial-gradient(#fff .7px, transparent .7px);
  background-size: 11px 11px;
}
.hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -3%;
  width: 70%;
  height: 55%;
  opacity: .25;
  background: var(--snow);
  clip-path: polygon(0 100%, 28% 42%, 41% 66%, 65% 0, 100% 100%);
}
.hero-content { position: relative; z-index: 2; padding-top: 185px; }
.eyebrow {
  margin: 0 0 22px;
  font: 600 11px Arial, sans-serif;
  letter-spacing: .22em;
}
.eyebrow::before { content: "＊"; margin-right: 10px; color: var(--wheat); font-size: 18px; }
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin: 0;
  font: 500 clamp(48px, 6.2vw, 82px)/1.3 "Yu Mincho", serif;
  letter-spacing: .05em;
}
.lead { max-width: 610px; margin: 30px 0 0; color: rgba(255,255,255,.75); font-size: 15px; line-height: 2; letter-spacing: .06em; }
.button {
  min-height: 56px;
  margin-top: 35px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  background: var(--wheat);
  color: var(--deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
}
.button.light { background: white; }

.section { padding: 115px 0; }
.section h2 { margin: 0; font: 500 clamp(38px, 4vw, 58px)/1.42 "Yu Mincho", serif; letter-spacing: .05em; }
.intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 11%; }
.intro-copy { padding-top: 44px; }
.intro-copy p { font-size: 15px; line-height: 2.15; letter-spacing: .04em; }

.values { padding: 110px 0; background: var(--deep); color: white; }
.values-title { margin-bottom: 55px; }
.values-list { border-top: 1px solid rgba(255,255,255,.18); }
.value {
  padding: 42px 0;
  display: grid;
  grid-template-columns: 70px 260px 1fr;
  gap: 38px;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.value > span {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 50%;
  font-family: "Yu Mincho", serif;
}
.value h3 { margin: 0; font: 500 27px "Yu Mincho", serif; letter-spacing: .07em; }
.value h3 small { display: block; margin-bottom: 6px; color: var(--wheat); font-size: 12px; }
.value p { margin: 0; color: rgba(255,255,255,.7); font-size: 14px; line-height: 2; }

.profile { max-width: 760px; }
.profile dl { margin: 35px 0 0; border-top: 1px solid var(--line); }
.profile dl div { padding: 18px 0; display: grid; grid-template-columns: 110px 1fr; gap: 25px; border-bottom: 1px solid var(--line); }
.profile dt { font-size: 12px; font-weight: 700; }
.profile dd { margin: 0; font-size: 13px; line-height: 1.8; }

.products-hero { background: linear-gradient(135deg, #2f605c, #183f3c); }
.products-hero::after { clip-path: polygon(0 100%, 24% 58%, 46% 74%, 68% 20%, 100% 100%); }
.category-nav { position: sticky; z-index: 5; top: 0; overflow-x: auto; background: rgba(247,248,244,.95); border-bottom: 1px solid var(--line); }
.category-nav .wrap { display: flex; }
.category-nav a { min-width: max-content; padding: 18px 22px; border-right: 1px solid var(--line); font-size: 12px; }
.catalog-intro { border-bottom: 1px solid var(--line); }
.full-catalog { padding: 70px 0 120px; background: var(--paper); }
.catalog-sheets { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
.catalog-sheet {
  min-width: 0;
  scroll-margin-top: 75px;
  padding: 14px;
  background: white;
  box-shadow: 0 14px 38px rgba(23,52,59,.09);
  transition: transform .2s ease, box-shadow .2s ease;
}
.catalog-sheet:hover { transform: translateY(-4px); box-shadow: 0 20px 48px rgba(23,52,59,.14); }
.catalog-sheet img { width: 100%; height: auto; background: #fff; }
.sheet-meta { min-height: 54px; padding: 14px 5px 2px; display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: center; }
.sheet-meta b { font: 600 10px Arial, sans-serif; letter-spacing: .16em; }
.sheet-meta em { color: #6f888d; font-size: 12px; font-style: normal; }
.sheet-meta i { font-size: 18px; font-style: normal; }

.contact-hero { color: var(--ink); background: #c6dbd9; }
.contact-hero .lead { color: rgba(23,52,59,.7); }
.contact-hero::after { opacity: .48; }
.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 9%; }
.contact-copy > p:last-child { margin-top: 25px; font-size: 14px; line-height: 2; }
.card { padding: 45px; background: white; box-shadow: 0 16px 45px rgba(23,52,59,.09); }
.email { display: flex; justify-content: space-between; gap: 15px; font: 500 clamp(18px, 2vw, 27px)/1.5 Arial, sans-serif; word-break: break-all; }
.hint { margin: 10px 0 35px; color: #789297; font-size: 11px; }
.card dl { margin: 0; padding-top: 25px; border-top: 1px solid var(--line); }
.card dl div { padding: 13px 0; display: grid; grid-template-columns: 70px 1fr; gap: 20px; }
.card dt { font-size: 12px; font-weight: 700; }
.card dd { margin: 0; font-size: 13px; line-height: 1.8; }

.footer { padding: 62px 0 25px; background: #102f2d; color: white; }
.footer-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 50px; }
.footer-nav { display: flex; gap: 35px; font-size: 12px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.15); }
.footer-bottom p { margin: 0; color: rgba(255,255,255,.55); font-size: 10px; line-height: 1.7; }

@media (max-width: 800px) {
  .nav { display: none; }
  .menu { display: block; position: relative; }
  .menu summary { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; cursor: pointer; list-style: none; }
  .menu summary::-webkit-details-marker { display: none; }
  .menu nav { position: absolute; right: 0; top: 52px; width: 245px; padding: 12px 22px; background: white; color: var(--ink); box-shadow: 0 15px 35px rgba(23,52,59,.18); }
  .menu nav a { display: block; padding: 15px 0; border-bottom: 1px solid var(--line); }
  .intro, .contact-layout { grid-template-columns: 1fr; gap: 50px; }
  .intro-copy { padding-top: 0; }
  .value { grid-template-columns: 60px 190px 1fr; gap: 20px; }
}

@media (max-width: 560px) {
  .wrap { width: calc(100% - 40px); }
  .header { height: 86px; padding: 0 20px; }
  .hero { min-height: 650px; }
  .hero-content { padding-top: 155px; }
  h1 { font-size: 42px; }
  .section { padding: 82px 0; }
  .section h2 { font-size: 36px; }
  .value { grid-template-columns: 48px 1fr; padding: 30px 0; }
  .value > span { width: 44px; height: 44px; }
  .value p { grid-column: 2; }
  .full-catalog { padding: 45px 0 85px; }
  .catalog-sheets { grid-template-columns: 1fr; gap: 24px; }
  .catalog-sheet { padding: 10px; }
  .card { padding: 30px 22px; }
  .footer-top, .footer-bottom { align-items: flex-start; flex-direction: column; gap: 30px; }
  .footer-nav { flex-direction: column; gap: 16px; }
}