* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: #172033;
  background: #ffffff;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid #e9edf5;
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .08em; color: #0f172a; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center;
  color: #fff; background: linear-gradient(135deg, #0f172a, #2b5fb8); letter-spacing: 0;
}
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 15px; color: #3d4b63; }
.nav-links a:hover { color: #1d4ed8; }

.hero {
  padding: 88px 0 96px;
  background: radial-gradient(circle at 78% 18%, rgba(43,95,184,.18), transparent 34%), linear-gradient(180deg, #f7f9fd 0%, #fff 100%);
}
.hero-grid, .page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.eyebrow, .section-kicker, .product-category {
  margin: 0 0 12px; font-size: 13px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: #2b5fb8;
}
h1,h2,h3,p { margin-top: 0; }
h1 { margin-bottom: 18px; font-size: clamp(40px, 6vw, 68px); line-height: 1.05; letter-spacing: -.04em; color: #0f172a; }
h2 { margin-bottom: 18px; font-size: clamp(30px, 4vw, 44px); line-height: 1.15; letter-spacing: -.03em; color: #0f172a; }
h3 { margin-bottom: 10px; font-size: 24px; color: #0f172a; }
.hero-text { max-width: 650px; margin-bottom: 32px; font-size: 20px; color: #4b5870; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px;
  border-radius: 999px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { color: #fff; background: #1d4ed8; box-shadow: 0 12px 24px rgba(29,78,216,.2); }
.btn.secondary { color: #172033; background: #fff; border: 1px solid #d9e0ec; }

.hero-card {
  min-height: 380px; padding: 34px; border-radius: 32px; display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(135deg, rgba(255,255,255,.9), rgba(255,255,255,.45)), linear-gradient(135deg, #eaf1ff, #f8fbff 44%, #dfeaff);
  border: 1px solid #e0e7f4; box-shadow: 0 24px 70px rgba(15,23,42,.1);
}
.card-label { width: fit-content; margin-bottom: 18px; padding: 7px 12px; border-radius: 999px; color: #1d4ed8; background: rgba(29,78,216,.09); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.brand-name { font-size: clamp(38px, 6vw, 60px); font-weight: 900; letter-spacing: .08em; color: #0f172a; }

.section { padding: 88px 0; }
.muted { background: #f7f9fd; }
.split { display: grid; grid-template-columns: .75fr 1.25fr; gap: 56px; }
.section-body { font-size: 18px; color: #4b5870; }
.center-heading { max-width: 760px; margin: 0 auto 38px; text-align: center; }
.center-heading p:last-child { color: #4b5870; font-size: 18px; }

.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.value-card, .product-card, .contact-card, .notice-card, .gallery-item, .legal-box {
  border: 1px solid #e5ebf4; background: #fff; border-radius: 24px; box-shadow: 0 14px 42px rgba(15,23,42,.06);
}
.value-card { padding: 24px; }
.value-card h3 { font-size: 20px; }
.value-card p { margin-bottom: 0; color: #667085; }

.section-title-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 34px; }
.row-desc { max-width: 480px; margin-bottom: 16px; color: #667085; }
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.product-card { overflow: hidden; transition: transform .2s ease; }
.product-card:hover { transform: translateY(-3px); }
.product-link { display: block; height: 100%; }
.product-image.real { aspect-ratio: 1 / 1; background: #f5f7fb; overflow: hidden; }
.product-image.real img { width: 100%; height: 100%; object-fit: contain; background: #ffffff; }
.product-info { padding: 28px; }
.product-info p { color: #56637a; }
.text-link { color: #1d4ed8; font-weight: 800; }

.notice-section { background: linear-gradient(180deg, #fff, #f7f9fd); }
.notice-card { padding: 42px; }
.notice-card p { color: #56637a; max-width: 860px; }
.english-note { border-top: 1px solid #e9edf5; padding-top: 18px; margin-top: 18px; }

.contact-section { background: linear-gradient(180deg, #fff, #f7f9fd); }
.contact-card { padding: 44px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 44px; }
.contact-card p { color: #56637a; }
.contact-list { display: grid; gap: 14px; }
.contact-list div { padding-bottom: 14px; border-bottom: 1px solid #e9edf5; }
.contact-list span { display: block; margin-bottom: 4px; color: #667085; font-size: 14px; }
.contact-list strong { display: block; color: #172033; font-size: 16px; }
.contact-list a, .legal a { color: #1d4ed8; }

.page-hero { padding: 70px 0; background: radial-gradient(circle at 80% 20%, rgba(43,95,184,.14), transparent 34%), linear-gradient(180deg, #f7f9fd, #fff); }
.page-hero.simple { padding: 86px 0 72px; }
.page-cover { border-radius: 30px; overflow: hidden; background: #fff; box-shadow: 0 24px 70px rgba(15,23,42,.12); border: 1px solid #e5ebf4; }
.page-cover img { aspect-ratio: 1 / 1; width: 100%; height: 100%; object-fit: contain; background: #ffffff; }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.product-detail p { color: #56637a; font-size: 18px; }
.detail-list { margin: 0; padding: 28px 28px 28px 46px; background: #f7f9fd; border-radius: 24px; color: #4b5870; border: 1px solid #e5ebf4; }
.detail-list li { margin-bottom: 10px; }

.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gallery-item { margin: 0; overflow: hidden; background: #fff; display: flex; flex-direction: column; }
.gallery-item img { border-bottom: 1px solid #eef2f7; }
.gallery-item img { width: 100%; height: auto; max-height: none; object-fit: contain; background: #ffffff; }
.gallery-item figcaption { padding: 12px 14px; font-size: 14px; color: #667085; }

.legal { max-width: 880px; }
.legal h2 { margin-top: 28px; font-size: 30px; }
.legal p { color: #4b5870; font-size: 17px; }
.legal-box { margin-top: 32px; padding: 26px; display: grid; gap: 8px; }
.legal-box strong { color: #0f172a; font-size: 18px; }

.site-footer { padding: 26px 0; background: #0f172a; color: #d9e3f5; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; font-size: 14px; }
.footer-inner p { margin: 0; }
.footer-inner a { color: #fff; }

@media (max-width: 860px) {
  .nav { min-height: auto; padding: 16px 0; align-items: flex-start; flex-direction: column; }
  .nav-links { width: 100%; gap: 14px; overflow-x: auto; padding-bottom: 4px; white-space: nowrap; }
  .hero { padding: 64px 0 74px; }
  .hero-grid, .page-hero-grid, .split, .product-grid, .contact-card, .product-detail { grid-template-columns: 1fr; }
  .hero-card { min-height: 260px; }
  .values { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .section-title-row { align-items: flex-start; flex-direction: column; }
  .section { padding: 64px 0; }
  .footer-inner { flex-direction: column; }
}
@media (max-width: 540px) {
  .container { width: min(100% - 28px, 1120px); }
  .values, .gallery-grid { grid-template-columns: 1fr; }
  .contact-card, .notice-card { padding: 28px; }
}