/* PubRef.jp スタイル
   共通デザインシステム（KaigoLog LP と同型）＋ PubRef 差し色（インディゴ #475569）。
   --color-primary 系（ネイビー）は全製品共通。--color-accent 系のみ PubRef 差し色。 */

:root {
  --color-primary: #1c3464;
  --color-primary-light: #2a4d8f;
  --color-primary-dark: #14254a;
  --color-accent: #475569;        /* PubRef: インディゴ（知・調べる） */
  --color-accent-dark: #334155;
  --color-accent-soft: #EBEEF2;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-bg: #ffffff;
  --color-bg-soft: #f8fafc;
  --color-border: #e5e7eb;
  --color-success: #15803d;
  --color-warning: #b45309;
  --max-width: 1080px;
  --max-width-text: 780px;
  --radius: 6px;
}

* { box-sizing: border-box; }

body {
  font-family: "Noto Sans JP", -apple-system, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  margin: 0;
  padding: 0;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.85;
  letter-spacing: 0.04em;
  font-size: 16px;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
a:hover { color: var(--color-primary-light); }

/* ヘッダー */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.site-logo .logo-mark {
  width: 34px;
  height: 34px;
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}
.site-logo .logo-text {
  font-weight: 700;
  font-size: 20px;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 14px;
}
.site-nav a {
  color: var(--color-text);
  text-decoration: none;
}
.site-nav a:hover { color: var(--color-primary); }

/* ボタン */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  letter-spacing: 0.04em;
}
.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
}
.btn-sm { font-size: 14px; padding: 9px 18px; }

/* ヒーロー */
.hero {
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
  padding: 88px 24px 72px;
  text-align: center;
}
.hero-inner { max-width: var(--max-width-text); margin: 0 auto; }
.hero .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 34px;
  color: var(--color-primary);
  margin: 0 0 16px;
  line-height: 1.4;
}
.hero .lead {
  font-size: 18px;
  color: var(--color-text-muted);
  margin: 0 0 32px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .cta-note {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 16px;
}

/* セクション */
.section { padding: 72px 24px; }
.section-soft { background: var(--color-bg-soft); }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-head { text-align: center; max-width: var(--max-width-text); margin: 0 auto 48px; }
.section-head h2 {
  font-size: 26px;
  color: var(--color-primary);
  margin: 0 0 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-text-muted);
  margin: 0;
}

/* 業種ピル */
.industry-pills {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.industry-pill {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text-muted);
  transition: all 0.15s;
}
.industry-pill:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}
.industry-pill.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}
.industry-pill.coming-soon {
  opacity: 0.5;
  cursor: default;
  pointer-events: none;
}

/* 困りごとカード */
.trouble-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.trouble-card {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
}
.trouble-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 10px rgba(90,79,207,0.1);
}
.trouble-card .trouble-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 8px;
}
.trouble-card h3 {
  font-size: 15px;
  color: var(--color-primary);
  margin: 0 0 6px;
  line-height: 1.5;
}
.trouble-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.6;
}

/* 自由質問欄 */
.freeask-box {
  background: var(--color-primary);
  border-radius: var(--radius);
  padding: 32px;
  color: #ffffff;
}
.freeask-box h3 {
  font-size: 18px;
  margin: 0 0 12px;
  color: #ffffff;
}
.freeask-box p {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  margin: 0 0 16px;
}
.freeask-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}
.freeask-row textarea {
  flex: 1;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 14px;
  resize: none;
  min-height: 56px;
  background: rgba(255,255,255,0.08);
  color: #ffffff;
}
.freeask-row textarea::placeholder { color: rgba(255,255,255,0.5); }
.freeask-row textarea:focus { outline: none; border-color: rgba(255,255,255,0.6); }
.freeask-submit {
  background: var(--color-accent);
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  padding: 12px 22px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}
.freeask-submit:hover { background: var(--color-accent-dark); }

/* guide リンクリスト */
.guide-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.guide-link-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.15s;
}
.guide-link-card:hover {
  border-color: var(--color-accent);
  color: var(--color-primary);
  text-decoration: none;
}
.guide-link-card .guide-tag {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}
.guide-link-card .guide-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}

/* 機能比較リスト */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.feature-card .feature-no {
  font-family: Georgia, serif;
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  background: var(--color-accent);
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feature-card h3 { font-size: 18px; color: var(--color-primary); margin: 0 0 10px; }
.feature-card p { font-size: 14px; color: var(--color-text-muted); margin: 0; }

/* 料金プラン */
.plan-label {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 16px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}
.plan-group { margin-bottom: 40px; }
.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.plan-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.plan-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}
.plan-card .plan-name { font-size: 15px; font-weight: 600; color: var(--color-primary); margin: 0 0 6px; }
.plan-card .plan-price { font-size: 26px; font-weight: 700; color: var(--color-text); margin: 0; }
.plan-card .plan-price small { font-size: 13px; font-weight: 400; color: var(--color-text-muted); }
.plan-card .plan-desc { font-size: 13px; color: var(--color-text-muted); margin: 12px 0 0; }
.plan-card .plan-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
  align-self: flex-start;
}
.plan-foot {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 12px;
  line-height: 1.7;
}

/* CTA 帯 */
.cta-band {
  background: var(--color-primary);
  color: #ffffff;
  padding: 72px 24px;
  text-align: center;
}
.cta-band h2 { font-size: 24px; color: #ffffff; margin: 0 0 16px; }
.cta-band p { font-size: 16px; color: rgba(255,255,255,0.85); margin: 0 0 28px; max-width: 600px; margin-left: auto; margin-right: auto; margin-bottom: 28px; }
.cta-band .btn-primary { background: var(--color-accent); border-color: var(--color-accent); }
.cta-band .btn-primary:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); }

/* FAQ */
.faq-list { max-width: var(--max-width-text); margin: 0 auto; display: grid; gap: 12px; }
.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.faq-item h3 { font-size: 15px; color: var(--color-primary); margin: 0 0 8px; }
.faq-item p { font-size: 14px; color: var(--color-text-muted); margin: 0; line-height: 1.7; }

/* 記事カード */
.article-card-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.article-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}
.article-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.article-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 8px;
  line-height: 1.5;
}
.article-card-title a { color: inherit; text-decoration: none; }
.article-card-title a:hover { text-decoration: underline; }
.article-card-desc { font-size: 13px; color: var(--color-text-muted); margin: 0 0 12px; line-height: 1.6; }
.article-card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}
.article-card-link:hover { text-decoration: underline; }

/* スタンス */
.stance {
  max-width: var(--max-width-text);
  margin: 0 auto;
  text-align: center;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 48px 32px;
}
.stance .stance-main { font-size: 24px; font-weight: 700; line-height: 1.6; margin: 0 0 16px; }
.stance .stance-accent { color: #b8b0f0; }
.stance p { font-size: 15px; opacity: 0.92; margin: 0; }

/* 信頼ポイント */
.trust-list {
  max-width: var(--max-width-text);
  margin: 0 auto;
  display: grid;
  gap: 16px;
}
.trust-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.trust-item .check { color: var(--color-success); font-weight: 700; font-size: 18px; line-height: 1.5; }
.trust-item h3 { font-size: 15px; color: var(--color-primary); margin: 0 0 4px; }
.trust-item p { font-size: 14px; color: var(--color-text-muted); margin: 0; }

/* フッター */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 40px 24px;
}
.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
}
.footer-brand { font-size: 18px; font-weight: 700; color: #ffffff; }
.footer-operator { font-size: 13px; }
.footer-disclaimer { font-size: 12px; color: rgba(255,255,255,0.65); border-top: 1px solid rgba(255,255,255,0.15); padding-top: 10px; }
.footer-nav { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; font-size: 13px; }
.footer-nav a { color: rgba(255,255,255,0.7); text-decoration: none; }
.footer-nav a:hover { color: #ffffff; text-decoration: underline; }
.copyright { font-size: 12px; color: rgba(255,255,255,0.5); }

/* 記事ページ固有 */
.article-wrap {
  max-width: var(--max-width-text);
  margin: 0 auto;
  padding: 56px 24px 80px;
}
.article-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-decoration: none;
}
.article-eyebrow:hover { background: #dddaf8; color: var(--color-accent-dark); }
.article-h1 { font-size: 28px; color: var(--color-primary); line-height: 1.5; margin: 0 0 20px; }
.article-meta { font-size: 13px; color: var(--color-text-muted); margin-bottom: 32px; }
.article-lead {
  font-size: 16px;
  color: var(--color-text-muted);
  background: var(--color-bg-soft);
  border-left: 4px solid var(--color-accent);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 40px;
  line-height: 1.9;
}
.article-wrap h2 { font-size: 21px; color: var(--color-primary); margin: 48px 0 16px; padding-bottom: 8px; border-bottom: 2px solid var(--color-accent); }
.article-wrap p { font-size: 15px; line-height: 1.9; color: var(--color-text); margin: 0 0 16px; }
.article-wrap ul, .article-wrap ol { font-size: 15px; line-height: 1.9; color: var(--color-text); margin: 0 0 16px; padding-left: 1.5em; }
.article-wrap li { margin-bottom: 6px; }
.article-sources {
  margin: 40px 0 0;
  padding: 24px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.article-sources h2 { font-size: 16px; border-bottom: none; margin: 0 0 12px; padding-bottom: 0; }
.article-sources ul { margin: 0; padding-left: 1.4em; }
.article-sources li { font-size: 13px; color: var(--color-text-muted); margin-bottom: 8px; }
.article-sources a { font-size: 13px; color: var(--color-primary); }
.article-cta {
  margin: 48px 0 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
}
.article-cta p { color: rgba(255,255,255,0.92); font-size: 15px; margin: 0 0 20px; }
.article-cta .cta-note { font-size: 12px; color: rgba(255,255,255,0.7); margin: 16px 0 0; }
.article-disclaimer, .article-can-cannot {
  margin: 24px 0 0;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.article-can-cannot-title { font-weight: 600; margin-bottom: 6px; color: var(--color-text); }
.breadcrumb { font-size: 13px; color: var(--color-text-muted); margin-bottom: 24px; }
.breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary); text-decoration: underline; }
.breadcrumb span { margin: 0 6px; }

/* レスポンシブ */
@media (max-width: 768px) {
  .site-nav { gap: 12px; font-size: 13px; }
  .hero { padding: 56px 16px 48px; }
  .hero h1 { font-size: 26px; }
  .hero .lead { font-size: 16px; }
  .section { padding: 48px 16px; }
  .freeask-box { padding: 20px; }
  .freeask-row { flex-direction: column; }
  .freeask-submit { width: 100%; }
  .article-wrap { padding: 40px 16px 56px; }
  .article-h1 { font-size: 22px; }
  .article-wrap h2 { font-size: 18px; }
  .article-cta { padding: 28px 20px; }
  .plan-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .site-nav .nav-hide-sp { display: none; }
  .trouble-grid { grid-template-columns: 1fr; }
  .guide-links { grid-template-columns: 1fr; }
}