:root {
  --ink: #0d1b1e;
  --muted: #5e6b68;
  --paper: #f7f4ee;
  --shell: #e8dfd2;
  --gold: #b98b4b;
  --reef: #0f4d57;
  --deep: #071416;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 6%, rgba(185, 139, 75, .14), transparent 24rem),
    linear-gradient(180deg, #f8f4ec 0%, var(--paper) 44%, #efe8dc 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(210px, 1fr) auto auto;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(247, 244, 238, .88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(13, 27, 30, .08);
}
.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  letter-spacing: .02em;
  white-space: nowrap;
}
.brand span { color: var(--gold); }
nav, .langs {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
nav a, .langs a {
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
}
nav a:hover, .langs a:hover, .langs .active { color: var(--ink); background: rgba(13, 27, 30, .06); }
.nav-cta { border: 1px solid rgba(13, 27, 30, .18); }
.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .82fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(32px, 6vw, 76px) clamp(20px, 5vw, 72px) 48px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 44%;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(15, 77, 87, .1));
}
.hero-copy, .hero-visual {
  position: relative;
  z-index: 1;
}
.kicker {
  margin: 0 0 14px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 12px;
  font-weight: 800;
}
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 {
  margin: 0;
  max-width: 980px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(48px, 8vw, 104px);
  line-height: .92;
  letter-spacing: 0;
}
:lang(zh) h1,
:lang(ja) h1 {
  max-width: 860px;
  font-size: clamp(44px, 5.6vw, 76px);
  line-height: 1.08;
}
:lang(zh) h2,
:lang(ja) h2 {
  font-size: clamp(34px, 4.4vw, 58px);
  line-height: 1.08;
}
.hero-text {
  max-width: 660px;
  color: #435350;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}
.hero-actions, .footer { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 6px;
  border: 1px solid rgba(13, 27, 30, .18);
  font-weight: 800;
}
.button.primary { background: var(--reef); color: white; border-color: var(--reef); }
.button.ghost { background: rgba(255,255,255,.38); }
.hero-visual {
  position: relative;
  min-height: min(68vh, 720px);
  border-radius: 8px;
  overflow: hidden;
  background: #10282d;
  box-shadow: 0 28px 70px rgba(7, 20, 22, .22);
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(7, 20, 22, .22), transparent 46%, rgba(185, 139, 75, .12));
  pointer-events: none;
}
.hero-visual img, .guide-layout img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-note {
  position: absolute;
  left: 22px;
  bottom: 22px;
  padding: 14px 16px;
  border-radius: 8px;
  background: rgba(247, 244, 238, .92);
  box-shadow: 0 10px 35px rgba(7, 20, 22, .18);
}
.hero-note span { display: block; color: var(--gold); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(13, 27, 30, .1);
  border-bottom: 1px solid rgba(13, 27, 30, .1);
  background:
    linear-gradient(90deg, rgba(255, 250, 241, .94), rgba(232, 223, 210, .92)),
    repeating-linear-gradient(135deg, rgba(15, 77, 87, .05) 0 1px, transparent 1px 10px);
}
.stats div {
  padding: 24px clamp(20px, 5vw, 72px);
  color: var(--reef);
  font-weight: 900;
  border-right: 1px solid rgba(13, 27, 30, .1);
}
.section {
  padding: clamp(58px, 8vw, 104px) clamp(20px, 5vw, 72px);
}
.split {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr);
  gap: clamp(28px, 5vw, 72px);
}
h2 {
  margin: 0 0 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
}
.section p { color: var(--muted); line-height: 1.75; font-size: 17px; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.product-card {
  min-height: 310px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  border-radius: 8px;
  background: white;
  border: 1px solid rgba(13, 27, 30, .1);
}
.product-card h3 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: 28px; line-height: 1.05; }
.product-card p { color: var(--gold); font-size: 13px; font-weight: 900; text-transform: uppercase; }
.product-card div { color: #31413e; line-height: 1.55; }
.product-card small { color: var(--muted); line-height: 1.5; }
.guide-section {
  background:
    linear-gradient(135deg, rgba(7, 20, 22, .96), rgba(15, 77, 87, .92)),
    radial-gradient(circle at 86% 10%, rgba(185, 139, 75, .22), transparent 24rem);
  color: var(--paper);
}
.guide-section p { color: #c7d0cd; }
.section-heading { max-width: 860px; margin-bottom: 32px; }
.guide-layout {
  display: grid;
  grid-template-columns: minmax(280px, .8fr) minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}
.guide-layout img {
  aspect-ratio: 4 / 5;
  border-radius: 8px;
  box-shadow: 0 26px 60px rgba(0, 0, 0, .32);
}
.guide-row {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(247, 244, 238, .18);
}
.guide-row span { color: var(--gold); font-family: Georgia, "Times New Roman", serif; font-size: 34px; }
.guide-row h3 { margin: 0; font-size: 26px; }
.inquiry {
  display: grid;
  grid-template-columns: minmax(260px, .75fr) minmax(320px, 1fr);
  gap: clamp(28px, 5vw, 72px);
}
.inquiry-form {
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 8px;
  background: white;
  border: 1px solid rgba(13, 27, 30, .1);
}
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; font-weight: 800; }
input, textarea {
  width: 100%;
  border: 1px solid rgba(13, 27, 30, .18);
  border-radius: 6px;
  padding: 12px;
  color: var(--ink);
  font: inherit;
  background: #fffdfa;
}
.thank-you { min-height: 70vh; padding: 100px clamp(20px, 5vw, 72px); }
.footer {
  justify-content: space-between;
  padding: 28px clamp(20px, 5vw, 72px);
  background: #081315;
  color: #dfe7e3;
}
.footer span, .footer a { color: #9dacaa; }
@media (max-width: 980px) {
  .site-header, .hero, .split, .guide-layout, .inquiry { grid-template-columns: 1fr; }
  .site-header { position: static; }
  .hero { min-height: auto; }
  .hero-visual { min-height: 430px; }
  .product-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  h1 { font-size: 48px; }
  .site-header { gap: 12px; }
  nav, .langs { gap: 4px; }
  .hero-visual { min-height: 340px; }
  .guide-row { grid-template-columns: 1fr; }
}