:root {
  color-scheme: light;
  --ink: #071426;
  --navy: #07182b;
  --gold: #d9aa47;
  --gold-soft: #f7edd8;
  --text: #24344a;
  --muted: #64748b;
  --line: #dce4ec;
  --surface: #f4f7fa;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.9;
}

a {
  color: inherit;
}

.legal-header {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px max(24px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid rgba(218, 228, 238, 0.85);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.legal-brand {
  display: inline-flex;
  width: 176px;
  height: 50px;
  align-items: center;
  overflow: hidden;
  border-radius: 12px;
  background: var(--navy);
}

.legal-brand img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.legal-back {
  padding: 10px 18px;
  border: 1px solid #bd8b30;
  border-radius: 9px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.legal-back:hover {
  box-shadow: 0 9px 20px rgba(7, 20, 38, 0.12);
  transform: translateY(-2px);
}

.legal-hero {
  padding: 70px max(24px, calc((100vw - 960px) / 2)) 54px;
  background:
    radial-gradient(circle at 80% 20%, rgba(217, 170, 71, 0.18), transparent 30%),
    var(--navy);
  color: #fff;
}

.legal-kicker {
  color: #e7bc60;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.legal-hero h1 {
  margin: 10px 0 8px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.45;
}

.legal-hero p {
  max-width: 720px;
  margin: 0;
  color: #bcc9d8;
}

.legal-main {
  width: min(960px, calc(100% - 40px));
  margin: 34px auto 72px;
}

.legal-document {
  padding: clamp(26px, 5vw, 58px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 46px rgba(7, 20, 38, 0.08);
}

.legal-document h2 {
  margin: 46px 0 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 22px;
  line-height: 1.55;
}

.legal-document h2:first-child {
  margin-top: 0;
}

.legal-document h3 {
  margin: 28px 0 8px;
  color: var(--ink);
  font-size: 17px;
}

.legal-document p,
.legal-document li {
  font-size: 14px;
}

.legal-document ol,
.legal-document ul {
  padding-left: 1.5em;
}

.legal-date {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 13px;
}

.legal-table {
  width: 100%;
  border-spacing: 0;
  border-collapse: separate;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.legal-table th,
.legal-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.legal-table th {
  width: 30%;
  background: #eef3f8;
  color: var(--ink);
}

.legal-table tr:last-child th,
.legal-table tr:last-child td {
  border-bottom: 0;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.support-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fbfcfe;
}

.support-card h2 {
  margin: 0 0 8px;
  padding: 0;
  border: 0;
  font-size: 18px;
}

.support-contact {
  margin-top: 30px;
  padding: 26px;
  border-radius: 14px;
  background: var(--gold-soft);
}

.support-contact a {
  font-weight: 900;
}

.legal-footer {
  display: grid;
  gap: 18px;
  padding: 38px max(24px, calc((100vw - 960px) / 2));
  background: var(--navy);
  color: #cad5e2;
}

.legal-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
}

.legal-footer a {
  font-size: 13px;
  text-decoration: none;
}

.legal-footer a:hover {
  color: #fff;
}

.legal-footer span {
  color: #7f91a6;
  font-size: 12px;
}

@media (max-width: 680px) {
  .legal-header {
    min-height: 64px;
    padding: 10px 16px;
  }

  .legal-brand {
    width: 144px;
    height: 42px;
  }

  .legal-back {
    padding: 8px 11px;
    font-size: 12px;
  }

  .legal-hero {
    padding: 50px 22px 40px;
  }

  .legal-main {
    width: min(100% - 24px, 960px);
    margin-top: 18px;
  }

  .legal-document {
    padding: 25px 20px;
  }

  .legal-table th,
  .legal-table td {
    display: block;
    width: 100%;
  }

  .legal-table th {
    border-bottom: 0;
  }

  .support-grid {
    grid-template-columns: 1fr;
  }
}