:root {
  --navy: #071b4c;
  --navy-2: #0b2f78;
  --blue: #1b68c9;
  --sky: #eaf4ff;
  --line: #c9dbf5;
  --gold: #d39112;
  --gold-2: #f2b52c;
  --text: #0a245c;
  --muted: #526a91;
  --shadow: 0 16px 38px rgba(7, 27, 76, .13);
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Meiryo, sans-serif;
  background: #f5f9ff;
  line-height: 1.85;
  letter-spacing: 0.01em;
}
a { color: var(--blue); }
a:hover { color: var(--navy); }
img { max-width: 100%; display: block; }

.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

/* ヘッダー */
.site-header {
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: #fff;
  padding: 14px 0;
  position: relative;
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--gold-2));
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header .logo {
  font-size: 24px;
  font-weight: 1000;
  color: #fff;
  text-decoration: none;
  line-height: 1;
}
.site-header .logo span { color: var(--gold-2); }
.site-header .nav {
  display: flex;
  gap: 22px;
  font-size: 13px;
  font-weight: 800;
}
.site-header .nav a { color: #cfdcf3; text-decoration: none; }
.site-header .nav a:hover { color: #fff; }

/* パンくず */
.breadcrumb {
  margin: 18px 0 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.breadcrumb a { color: var(--blue); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 8px; color: #b8cae8; }

/* ページ本体 */
.page-body {
  padding: 8px 0 64px;
}
.page-body h1 {
  margin: 8px 0 20px;
  color: var(--navy);
  font-size: 32px;
  line-height: 1.4;
  letter-spacing: -.005em;
  position: relative;
  padding-bottom: 14px;
}
.page-body h1::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 80px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--blue), var(--gold-2));
}
.page-body .lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

/* 記事カード */
.legal-card {
  background: #fff;
  padding: 36px 40px;
  border-radius: 16px;
  border: 1px solid #d5e4f8;
  box-shadow: 0 8px 24px rgba(7,27,76,.05);
}
.legal-card h2 {
  margin: 28px 0 12px;
  color: var(--navy);
  font-size: 19px;
  line-height: 1.5;
  border-left: 4px solid var(--gold-2);
  padding-left: 12px;
}
.legal-card h2:first-child { margin-top: 0; }
.legal-card h3 {
  margin: 18px 0 6px;
  color: var(--navy);
  font-size: 15px;
  font-weight: 800;
}
.legal-card p, .legal-card li {
  font-size: 14px;
  line-height: 1.9;
  color: #1f3661;
  font-weight: 500;
}
.legal-card ol, .legal-card ul {
  padding-left: 1.4em;
  margin: 8px 0 14px;
}
.legal-card ul li::marker { color: var(--gold-2); }
.legal-card .legal-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 14px 0;
  border: 1px solid #d9e8fb;
  border-radius: 10px;
  overflow: hidden;
  font-size: 13.5px;
}
.legal-card .legal-table th,
.legal-card .legal-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #e2edfb;
  vertical-align: top;
  text-align: left;
}
.legal-card .legal-table tr:last-child th,
.legal-card .legal-table tr:last-child td { border-bottom: 0; }
.legal-card .legal-table th {
  background: #f0f7ff;
  color: var(--navy);
  font-weight: 800;
  width: 30%;
  white-space: nowrap;
}
.legal-card .revision {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid #e2edfb;
  font-size: 12px;
  color: var(--muted);
  text-align: right;
}

/* フッター */
.site-footer {
  position: relative;
  color: #cfdcf3;
  background:
    radial-gradient(circle at 88% 0%, rgba(211,145,18,.18), transparent 32%),
    linear-gradient(180deg, #051330, #030c20);
  padding: 56px 0 28px;
  font-size: 13px;
  line-height: 1.75;
}
.site-footer::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--gold-2));
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  align-items: flex-start;
}
.footer-brand .footer-logo {
  display: inline-block;
  font-size: 26px;
  font-weight: 1000;
  color: #fff;
  text-decoration: none;
  margin-bottom: 14px;
  line-height: 1;
}
.footer-brand .footer-logo span { color: var(--gold-2); }
.footer-brand p { margin: 0 0 6px; color: #b8cae8; font-weight: 700; }
.footer-brand .footer-tagline { margin-bottom: 18px; color: #e8efff; font-size: 14px; font-weight: 800; }
.footer-col h4 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col ul li { margin: 0 0 8px; }
.footer-col ul a {
  color: #cfdcf3;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul a::before {
  content: "›";
  color: var(--gold-2);
  font-size: 14px;
  font-weight: 900;
}
.footer-col ul a:hover { color: #fff; }
.footer-col .contact-line { color: #b8cae8; margin: 0 0 6px; }
.footer-col .contact-line strong { display: inline-block; min-width: 56px; color: #e8efff; font-weight: 800; }
.footer-col .contact-line a { color: #fff; font-weight: 800; text-decoration: none; }
.footer-bottom {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.14);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: #8fa4cc;
  font-size: 12px;
  font-weight: 700;
}
.footer-bottom .legal-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-bottom .legal-links a { color: #b8cae8; text-decoration: none; }
.footer-bottom .legal-links a:hover { color: #fff; }

/* フォーム */
.form-card {
  background: #fff;
  padding: 36px 40px;
  border-radius: 16px;
  border: 1px solid #d5e4f8;
  box-shadow: 0 8px 24px rgba(7,27,76,.05);
}
.form-row {
  display: grid;
  gap: 6px;
  margin-bottom: 20px;
}
.form-row label {
  font-size: 13px;
  font-weight: 800;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 8px;
}
.form-row label .req {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  background: #d34141;
  color: #fff;
  font-size: 10px;
  font-weight: 1000;
  letter-spacing: .04em;
}
.form-row label .opt {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  background: #cde0fa;
  color: var(--navy);
  font-size: 10px;
  font-weight: 1000;
  letter-spacing: .04em;
}
.form-row .help { font-size: 11.5px; color: var(--muted); font-weight: 700; margin: 0; }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #cde0fa;
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--navy);
  background: #f8fbff;
  transition: border-color .15s, background .15s;
}
.form-row textarea { min-height: 140px; resize: vertical; line-height: 1.7; }
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(27,104,201,.15);
}
.form-row .radio-group,
.form-row .checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 4px;
}
.form-row .radio-group label,
.form-row .checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border: 1.5px solid #cde0fa;
  border-radius: 10px;
  cursor: pointer;
  background: #f8fbff;
  transition: all .15s;
  font-weight: 700;
  color: var(--navy);
}
.form-row .radio-group label:hover,
.form-row .checkbox-group label:hover {
  border-color: var(--blue);
  background: #f0f7ff;
}
.form-row .radio-group input,
.form-row .checkbox-group input { accent-color: var(--blue); }
.form-row .radio-group input:checked + span,
.form-row .checkbox-group input:checked + span { color: var(--navy); font-weight: 900; }
.form-consent {
  margin: 24px 0 18px;
  padding: 16px 18px;
  border: 1.5px solid var(--gold-2);
  border-radius: 10px;
  background: #fffaeb;
}
.form-consent label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  color: var(--navy);
}
.form-consent input { width: 18px; height: 18px; accent-color: var(--gold); }
.form-consent a { color: var(--blue); text-decoration: underline; }
.form-submit {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 18px 22px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--gold-2), var(--gold));
  color: #fff;
  font-size: 17px;
  font-weight: 1000;
  letter-spacing: .04em;
  cursor: pointer;
  transition: transform .1s, box-shadow .15s, opacity .2s;
  box-shadow: 0 12px 24px rgba(211,145,18,.28);
}
.form-submit:hover { transform: translateY(-1px); box-shadow: 0 16px 30px rgba(211,145,18,.36); }
.form-submit:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.form-note {
  margin-top: 14px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
}

/* サンクスページ */
.thanks-card {
  text-align: center;
  padding: 56px 40px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid #d5e4f8;
  box-shadow: 0 8px 24px rgba(7,27,76,.05);
}
.thanks-card .check-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--gold-2), var(--gold));
  color: #fff;
  font-size: 40px;
  display: grid;
  place-items: center;
  font-weight: 1000;
  box-shadow: 0 14px 28px rgba(211,145,18,.32);
}
.thanks-card h1 { display: inline-block; margin: 0 0 14px; padding: 0; }
.thanks-card h1::after { display: none; }
.thanks-card p { color: var(--muted); font-size: 14px; font-weight: 700; line-height: 1.85; }
.thanks-card .btn-back {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 30px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: #fff;
  font-weight: 900;
  text-decoration: none;
  transition: transform .1s;
}
.thanks-card .btn-back:hover { transform: translateY(-1px); }

/* レスポンシブ */
@media (max-width: 980px) {
  .site-header .container { flex-direction: column; gap: 12px; align-items: flex-start; }
  .site-header .nav { gap: 14px; flex-wrap: wrap; }
  .legal-card, .form-card { padding: 24px 22px; }
  .page-body h1 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .form-row .radio-group,
  .form-row .checkbox-group { grid-template-columns: 1fr; }
  .thanks-card { padding: 40px 22px; }
}