:root {
  --primary: #4e6ef2;
  --primary-soft: #eef1fd;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1a1d2e;
  --text2: #5a607a;
  --text3: #9aa0b8;
  --border: #e5e8f0;
  --radius: 14px;
  --content-max: 720px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding:
    calc(12px + var(--safe-top))
    calc(16px + var(--safe-right))
    calc(24px + var(--safe-bottom))
    calc(16px + var(--safe-left));
}

html.in-app-browser body,
body.in-app-browser {
  padding:
    12px
    calc(16px + var(--safe-right))
    16px
    calc(16px + var(--safe-left));
}

.header {
  max-width: var(--content-max);
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
  min-width: 0;
}

.brand span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #4e6ef2, #7c5cef);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  flex-shrink: 0;
}

.legal-nav {
  max-width: var(--content-max);
  margin: 0 auto 14px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.legal-nav::-webkit-scrollbar {
  display: none;
}

.legal-nav-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text2);
  background: var(--card);
  border: 1px solid var(--border);
  white-space: nowrap;
}

.legal-nav-link.active {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: rgba(78, 110, 242, 0.25);
}

.lang-switch {
  display: flex;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text2);
  cursor: pointer;
}

.lang-btn.active {
  background: var(--primary-soft);
  color: var(--primary);
}

.card {
  max-width: var(--content-max);
  margin: 0 auto;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px 18px;
  box-shadow: 0 4px 24px rgba(78, 110, 242, 0.08);
  overflow-wrap: anywhere;
  word-break: break-word;
}

h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.updated {
  font-size: 13px;
  color: var(--text3);
  margin-bottom: 20px;
}

.lead {
  color: var(--text2);
  margin-bottom: 24px;
}

section {
  margin-bottom: 22px;
}

section h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.4;
}

section p,
section li {
  color: var(--text2);
  font-size: 14px;
}

section ul,
section ol {
  padding-left: 1.2em;
  margin-top: 8px;
}

section li {
  margin-bottom: 6px;
}

code {
  font-size: 0.9em;
  background: var(--primary-soft);
  padding: 2px 6px;
  border-radius: 4px;
  word-break: break-all;
}

section:has(> table.data-table) {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 10px;
}

.data-table th,
.data-table td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: var(--primary-soft);
  color: var(--text);
  font-weight: 600;
}

.data-table td {
  color: var(--text2);
}

a {
  color: var(--primary);
  overflow-wrap: anywhere;
}

.footer {
  max-width: var(--content-max);
  margin: 20px auto 0;
  text-align: center;
  font-size: 13px;
  color: var(--text3);
  line-height: 1.8;
}

.footer a {
  color: var(--primary);
  text-decoration: none;
}

[data-lang] {
  display: none;
}

[data-lang].active {
  display: block;
}

@media (min-width: 640px) {
  :root {
    --content-max: 800px;
  }

  body {
    padding:
      calc(24px + var(--safe-top))
      calc(24px + var(--safe-right))
      calc(32px + var(--safe-bottom))
      calc(24px + var(--safe-left));
  }

  .card {
    padding: 32px 28px;
  }

  h1 {
    font-size: 26px;
  }

  section h2 {
    font-size: 17px;
  }

  section p,
  section li {
    font-size: 15px;
  }
}

@media (min-width: 1024px) {
  :root {
    --content-max: 960px;
  }

  body {
    padding:
      calc(32px + var(--safe-top))
      calc(32px + var(--safe-right))
      calc(40px + var(--safe-bottom))
      calc(32px + var(--safe-left));
  }

  .card {
    padding: 40px 44px;
  }

  h1 {
    font-size: 28px;
  }

  .data-table {
    min-width: 0;
  }
}

@media (min-width: 1280px) {
  :root {
    --content-max: 1040px;
  }
}