*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg: #F7F7F5;
  --text: #111111;
  --sub: #666666;
  --border: #E5E5E2;
  --max: 1160px;
  --pad: clamp(20px, 5vw, 64px);
  --font: "Helvetica Neue", Helvetica, Arial, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, system-ui, sans-serif;
}

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--text); text-decoration: none; transition: opacity .2s ease; }
a:hover { opacity: .55; }

h1, h2, h3, p, dl, dd, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

/* Header */
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 88px;
}
.logo { font-size: 15px; font-weight: 600; letter-spacing: 0.2em; }
.nav ul { display: flex; gap: clamp(16px, 3vw, 40px); }
.nav a { font-size: 13px; letter-spacing: 0.06em; color: var(--text); }

/* Hero */
.hero .wrap {
  min-height: calc(86vh - 88px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 64px;
  padding-bottom: 96px;
}
.hero h1 {
  font-size: clamp(44px, 11vw, 148px);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1;
  margin-left: -0.04em;
}
.hero p {
  margin-top: clamp(20px, 3vw, 32px);
  font-size: 14px;
  color: var(--sub);
  letter-spacing: 0.12em;
}

/* Sections */
.section .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
  gap: 32px 48px;
  padding-top: clamp(72px, 10vw, 128px);
  padding-bottom: clamp(72px, 10vw, 128px);
  border-top: 1px solid var(--border);
}
.section h2 { font-size: 13px; font-weight: 500; letter-spacing: 0.16em; }

/* Business */
.business-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px 32px;
}
.business-list li { border-top: 1px solid var(--text); padding-top: 20px; }
.business-list .num { display: block; font-size: 12px; color: var(--sub); letter-spacing: 0.1em; }
.business-list h3 { margin-top: 32px; font-size: 18px; font-weight: 500; letter-spacing: 0.02em; line-height: 1.4; }
.business-list p { margin-top: 12px; font-size: 13px; color: var(--sub); line-height: 1.9; }

/* Company */
.company-list > div {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 8px 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.company-list > div:first-child { border-top: 1px solid var(--border); }
.company-list dt { font-size: 13px; color: var(--sub); }
.company-list dd { font-size: 14px; }
.company-list dd li + li { margin-top: 4px; }
.company-list .notice-link { display: inline-block; margin-left: 20px; font-size: 13px; border-bottom: 1px solid var(--text); line-height: 1.5; }

/* Footer */
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px 32px;
  padding-top: 40px;
  padding-bottom: 48px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.site-footer .brand { font-weight: 600; letter-spacing: 0.16em; }
.site-footer .links { display: flex; gap: 32px; align-items: baseline; }
.site-footer small { font-size: 12px; color: var(--sub); }

/* Light fade (top page only) */
@media (prefers-reduced-motion: no-preference) {
  .fade { animation: fade .9s ease both; }
  @keyframes fade { from { opacity: 0; } to { opacity: 1; } }
}

/* Electronic Notice page */
.notice-main .wrap { padding-top: clamp(56px, 9vw, 112px); padding-bottom: clamp(80px, 12vw, 144px); }
.notice-main .inner { max-width: 760px; }
.notice-main .label { font-size: 12px; color: var(--sub); letter-spacing: 0.16em; }
.notice-main h1 { margin-top: 16px; font-size: clamp(28px, 4vw, 36px); font-weight: 500; letter-spacing: 0.08em; line-height: 1.4; }
.notice-main .lead { margin-top: 40px; font-size: 15px; }
.notices { margin-top: 56px; border-top: 1px solid var(--text); }
.notices .empty { padding: 32px 0; border-bottom: 1px solid var(--border); font-size: 15px; }
.notices li {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: 8px 24px;
  align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.notices time { font-size: 13px; color: var(--sub); letter-spacing: 0.04em; }
.notices .title { font-size: 15px; }
.notices .pdf { font-size: 12px; letter-spacing: 0.08em; border-bottom: 1px solid var(--text); line-height: 1.5; }
.notice-main .note { margin-top: 40px; font-size: 13px; color: var(--sub); line-height: 2; }
.notice-main .sign { margin-top: 56px; font-size: 14px; text-align: right; }

/* Responsive */
@media (max-width: 860px) {
  .section .wrap { grid-template-columns: minmax(0, 1fr); }
  .business-list { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .business-list h3 { margin-top: 16px; }
}
@media (max-width: 600px) {
  :root { --pad: 22px; }
  .site-header .wrap { height: auto; padding-top: 20px; padding-bottom: 20px; flex-direction: column; align-items: flex-start; gap: 14px; }
  .nav ul { gap: 20px; flex-wrap: wrap; }
  .hero .wrap { min-height: 64vh; padding-top: 40px; padding-bottom: 72px; }
  .company-list > div { grid-template-columns: minmax(0, 1fr); gap: 4px; padding: 18px 0; }
  .company-list .notice-link { margin-left: 0; margin-top: 8px; display: table; }
  .notices li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .notices .pdf { justify-self: start; margin-top: 6px; }
  .notice-main .sign { text-align: left; }
}