:root { --fg: #1a1a1a; --sub: #666; --line: #e3e3e3; --bg: #fff; --card: #f6f6f4; }
@media (prefers-color-scheme: dark) { :root { --fg: #eee; --sub: #9a9a9a; --line: #333; --bg: #141414; --card: #1d1d1d; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Helvetica Neue", Arial, sans-serif; line-height: 1.8; }
a { color: inherit; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.top { border-bottom: 1px solid var(--line); }
.nav { display: flex; justify-content: space-between; align-items: center; height: 60px; gap: 16px; }
.logo { font-weight: 700; letter-spacing: .04em; text-decoration: none; }
nav { display: flex; gap: 20px; font-size: 14px; }
nav a { text-decoration: none; color: var(--sub); }
.hero { padding: 80px 0 56px; }
h1 { font-size: 36px; margin: 0 0 16px; }
.lead { font-size: 18px; margin: 0 0 8px; max-width: 640px; }
.en { color: var(--sub); font-size: 14px; }
.lead.en { font-size: 15px; }
section { margin-bottom: 64px; }
h2 { font-size: 22px; margin: 0 0 20px; }
h2 span { font-size: 13px; font-weight: 500; color: var(--sub); letter-spacing: .1em; margin-left: 8px; text-transform: uppercase; }
h3 { font-size: 17px; margin: 0 0 8px; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
article { background: var(--card); border-radius: 10px; padding: 24px; }
article p { margin: 0 0 8px; }
dl { margin: 0; border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 160px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
dt { color: var(--sub); }
dd { margin: 0; }
dt .en, dd .en { display: block; }
.mail { font-size: 18px; }
.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; border-top: 1px solid var(--line); padding-top: 24px; padding-bottom: 48px; color: var(--sub); font-size: 13px; }
.doc h1 { font-size: 28px; margin-top: 56px; }
.doc h2 { font-size: 18px; margin: 32px 0 8px; }
.doc section { margin-bottom: 24px; }
@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; gap: 2px; }
  nav { gap: 12px; font-size: 13px; }
  .hero { padding: 48px 0 32px; }
  h1 { font-size: 28px; }
}