:root {
  --navy: #14243a;
  --ink: #1e293b;
  --muted: #64748b;
  --line: #e5e7eb;
  --paper: #f7f8fa;
  --white: #ffffff;
  --gold: #b59a63;
  --shadow: 0 18px 45px rgba(20, 36, 58, 0.12);
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); font-family: "Inter", "Noto Sans JP", "Noto Sans SC", Arial, sans-serif; background: var(--white); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.site-header { position: sticky; top: 0; z-index: 20; display: grid; grid-template-columns: auto 1fr auto; gap: 20px; align-items: center; padding: 16px 5vw; background: rgba(255,255,255,0.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.brand { display: flex; gap: 12px; align-items: center; min-width: 220px; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 6px; background: var(--navy); color: var(--white); font-weight: 700; }
.brand small { display: block; color: var(--muted); font-size: 12px; }
.main-nav, .language-switcher, .footer-links { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.main-nav { justify-content: center; font-size: 14px; }
.main-nav a, .language-switcher a, .footer-links a { color: var(--muted); }
.main-nav a.active, .language-switcher a.active { color: var(--navy); font-weight: 700; }
.language-switcher { justify-content: flex-end; font-size: 13px; }
.menu-button { display: none; border: 1px solid var(--line); background: var(--white); padding: 8px 12px; border-radius: 6px; color: var(--navy); }
.hero, .page-hero { position: relative; min-height: 680px; display: flex; align-items: center; padding: 80px 5vw; color: var(--white); background-image: linear-gradient(90deg, rgba(11,25,43,0.88), rgba(11,25,43,0.45)), var(--hero-image); background-size: cover; background-position: center; }
.page-hero { min-height: 360px; }
.hero-content, .page-hero div { max-width: 760px; }
.eyebrow { color: var(--gold); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; font-weight: 700; }
h1, h2, h3 { line-height: 1.18; margin: 0 0 16px; color: inherit; }
h1 { font-size: clamp(40px, 6vw, 76px); letter-spacing: 0; }
h2 { font-size: clamp(28px, 4vw, 44px); }
h3 { font-size: 20px; }
p { margin: 0 0 16px; }
.hero p, .page-hero p { max-width: 680px; font-size: 18px; color: rgba(255,255,255,0.88); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.button, button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 12px 18px; border-radius: 6px; border: 1px solid transparent; font-weight: 700; cursor: pointer; }
.button.primary, button { background: var(--gold); color: var(--white); }
.button.secondary { border-color: rgba(255,255,255,0.6); color: var(--white); }
.stat-band { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--navy); color: var(--white); }
.stat-band div { padding: 26px 5vw; border-right: 1px solid rgba(255,255,255,0.16); font-weight: 700; }
.section { padding: 90px 5vw; }
.section-heading { max-width: 820px; margin-bottom: 34px; }
.section-heading p, .text-page p { color: var(--muted); font-size: 17px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.service-card, .product-card, .contact-form { border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: var(--shadow); }
.service-card { padding: 26px; }
.service-card p, .product-card p { color: var(--muted); }
.image-feature { display: grid; grid-template-columns: 1.2fr .8fr; gap: 44px; align-items: center; padding: 80px 5vw; background: var(--paper); }
.image-feature img { width: 100%; height: 520px; object-fit: cover; border-radius: 8px; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-card { overflow: hidden; }
.product-card > div:last-child { padding: 20px; }
.product-card span { color: var(--gold); font-size: 13px; font-weight: 700; }
.product-card a { color: var(--navy); font-weight: 700; }
.product-image { height: 210px; background-size: cover; background-position: center; }
.product-1 { background-image: url('https://images.unsplash.com/photo-1583947215259-38e31be8751f?auto=format&fit=crop&w=900&q=80'); }
.product-2 { background-image: url('https://images.unsplash.com/photo-1556911220-bff31c812dba?auto=format&fit=crop&w=900&q=80'); }
.product-3 { background-image: url('https://images.unsplash.com/photo-1517677208171-0bc6725a3e60?auto=format&fit=crop&w=900&q=80'); }
.product-4 { background-image: url('https://images.unsplash.com/photo-1585412727339-54e4bae3bbf9?auto=format&fit=crop&w=900&q=80'); }
.product-5 { background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?auto=format&fit=crop&w=900&q=80'); }
.product-6 { background-image: url('https://images.unsplash.com/photo-1600369672770-985fd30004eb?auto=format&fit=crop&w=900&q=80'); }
.placeholder-panel { max-width: 760px; padding: 32px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: var(--shadow); }
.placeholder-panel p { color: var(--muted); }
.contact-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; background: var(--paper); }
.contact-copy { padding: 10px 0; }
.wechat-box { display: inline-flex; align-items: center; gap: 14px; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); }
.wechat-box img { width: 96px; height: 96px; }
.contact-form { padding: 28px; display: grid; gap: 16px; }
.contact-form label { display: grid; gap: 7px; color: var(--muted); font-size: 14px; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 12px; font: inherit; color: var(--ink); background: var(--white); }
.hidden { display: none; }
.map-section iframe { width: 100%; height: 380px; border: 0; display: block; }
.site-footer { display: flex; justify-content: space-between; gap: 30px; padding: 38px 5vw; background: #0f1b2c; color: var(--white); }
.site-footer p, .site-footer a { color: rgba(255,255,255,0.74); }
.thanks { min-height: 50vh; display: grid; align-content: center; gap: 20px; }
@media (max-width: 980px) {
  .site-header { grid-template-columns: auto auto; }
  .menu-button { display: inline-flex; justify-self: end; }
  .main-nav, .language-switcher { grid-column: 1 / -1; display: none; justify-content: flex-start; }
  .main-nav.open, .language-switcher.open { display: flex; }
  .hero { min-height: 620px; }
  .stat-band, .card-grid, .product-grid, .contact-section, .image-feature { grid-template-columns: 1fr; }
  .image-feature img { height: 340px; }
  .site-footer { flex-direction: column; }
}
@media (max-width: 560px) {
  .brand { min-width: 0; }
  h1 { font-size: 38px; }
  .hero, .page-hero, .section { padding-left: 22px; padding-right: 22px; }
  .stat-band div { padding-left: 22px; padding-right: 22px; }
}