/* ===================================================
   株式会社長州商事 コーポレートサイト
   =================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f7f7f6;
  --color-text: #1a1a1a;
  --color-text-soft: #55565a;
  --color-border: #e3e3e0;
  --color-accent: #1a1a1a;
  --max-width: 880px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

/* ---------- Layout ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.site-logo .en {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-text-soft);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--color-text-soft);
  margin-left: 28px;
}

.main-nav a:hover {
  color: var(--color-text);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Hero ---------- */

.hero {
  padding: 96px 0 72px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.hero .catch {
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: 0.08em;
}

.hero .lead {
  max-width: 640px;
  margin: 0 auto;
  color: var(--color-text-soft);
  font-size: 1rem;
}

/* ---------- Sections ---------- */

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--color-border);
}

section:last-of-type {
  border-bottom: none;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 36px;
  text-align: center;
}

.business-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.business-list li {
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 22px 24px;
  font-size: 0.95rem;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.company-table th,
.company-table td {
  text-align: left;
  padding: 16px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.company-table th {
  width: 30%;
  color: var(--color-text-soft);
  font-weight: 500;
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 40px 24px 56px;
  text-align: center;
}

.footer-links {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 24px;
}

.footer-links a {
  text-decoration: none;
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.footer-links a:hover {
  color: var(--color-text);
}

.copyright {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

/* ---------- Simple pages (public-notice / privacy) ---------- */

.page {
  padding: 72px 0 96px;
}

.page h1 {
  font-size: 1.6rem;
  margin: 0 0 40px;
  text-align: center;
}

.page h2 {
  font-size: 1.1rem;
  margin: 40px 0 12px;
}

.page p {
  margin: 0 0 16px;
  color: var(--color-text-soft);
}

.back-link {
  display: inline-block;
  margin-top: 48px;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--color-text-soft);
  border-bottom: 1px solid var(--color-border);
}

.back-link:hover {
  color: var(--color-text);
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .hero {
    padding: 64px 0 48px;
  }

  .hero .catch {
    font-size: 1.8rem;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .main-nav a {
    margin-left: 0;
    margin-right: 20px;
  }

  .business-list {
    grid-template-columns: 1fr;
  }

  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
    padding: 8px 0;
  }

  .company-table th {
    border-bottom: none;
    padding-bottom: 0;
  }

  .company-table tr {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .company-table td {
    border-bottom: none;
  }
}