:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --accent-green: #10b981;
  --accent-gold: #f59e0b;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 18px rgba(0,0,0,0.07);
  --shadow-lg: 0 12px 28px rgba(0,0,0,0.1);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
}
.portal-wrapper {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* ヘッダー */
.portal-header {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  min-width: 0;
}
.logo-icon {
  font-size: 1.8rem;
  color: var(--primary);
  flex-shrink: 0;
}
.logo-title {
  font-size: clamp(1.05rem, 3.8vw, 1.3rem);
  font-weight: 800;
  color: var(--text-main);
  display: block;
  white-space: nowrap;
}
.logo-domain {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
}
.header-badge {
  font-size: clamp(0.7rem, 2.5vw, 0.8rem);
  font-weight: 700;
  color: var(--accent-green);
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ヒーロー */
.portal-hero {
  text-align: center;
  padding: 24px 8px 36px;
}
.portal-hero h1 {
  font-size: clamp(1.45rem, 4.5vw, 2.2rem);
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.3px;
  line-height: 1.35;
  margin-bottom: 14px;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.highlight-text {
  color: var(--primary);
  display: inline-block;
}
.hero-sub {
  font-size: clamp(0.88rem, 2.5vw, 1.02rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
}

/* 更新情報バナー */
.portal-update-notice {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.82rem;
  color: #1e40af;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* セクション */
.section-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ツールカードグリッド */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
  margin-bottom: 48px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  position: relative;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.tool-card.popular {
  border-color: #86efac;
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.1);
}

.tool-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.tool-tag {
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
}
.tag-popular { background: #d1fae5; color: #047857; }
.tag-hot { background: #fee2e2; color: #b91c1c; }
.tag-new { background: #fdf4ff; color: #86198f; border: 1px solid #f5d0fe; }
.tool-cat { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); }

.tool-icon-wrapper {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 14px;
}
.icon-fukugyo { background: #ecfdf5; color: var(--accent-green); }
.icon-loan { background: #eff6ff; color: var(--primary); }
.icon-ikukyu { background: #fdf4ff; color: #c026d3; }

.tool-card h3 {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.45;
}
.tool-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.tool-features {
  list-style: none;
  font-size: 0.82rem;
  color: #334155;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 22px;
}
.tool-features i {
  color: var(--accent-green);
  margin-right: 6px;
}

.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-green);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.22);
}
.tool-btn:hover { background-color: #059669; }
.tool-btn.btn-blue {
  background-color: var(--primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.22);
}
.tool-btn.btn-blue:hover { background-color: var(--primary-hover); }
.tool-btn.btn-purple {
  background-color: #c026d3;
  box-shadow: 0 4px 12px rgba(192, 38, 211, 0.22);
}
.tool-btn.btn-purple:hover { background-color: #a21caf; }

/* サイト特徴 */
.portal-features {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 32px 24px;
  margin-bottom: 48px;
}
.portal-features h2 {
  font-size: 1.25rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 26px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.feature-box {
  text-align: center;
  padding: 8px;
}
.feat-icon {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 10px;
}
.feature-box h4 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.feature-box p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* フッター */
.portal-footer {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}
.footer-nav a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}
.footer-nav a:hover {
  text-decoration: underline;
}
.footer-subnav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-bottom: 16px;
  font-size: 0.8rem;
}
.footer-subnav a {
  color: var(--text-muted);
  text-decoration: none;
}
.footer-subnav a:hover {
  color: var(--primary);
  text-decoration: underline;
}
.copy { margin-bottom: 6px; }
.disclaimer {
  font-size: 0.75rem;
  color: #94a3b8;
  max-width: 820px;
  margin: 6px auto 0;
  line-height: 1.6;
}

/* レスポンシブ微調整 (320px〜430px) */
@media (max-width: 480px) {
  .portal-wrapper { padding: 0 12px 30px; }
  .portal-header { padding: 14px 0; margin-bottom: 20px; }
  .header-inner { gap: 8px; }
  .logo-icon { font-size: 1.5rem; }
  .portal-hero { padding: 16px 4px 28px; }
  .tool-card { padding: 20px 16px; }
  .portal-features { padding: 24px 16px; }
  .features-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   ポータル強化スタイル（信頼バッジ・法改正バッジ・免責ボックス）
============================================================ */

/* ヘッダーバッジ */
.header-badge {
  background: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

/* 信頼性バッジ列（ヒーロー上部） */
.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
}
.trust-badge {
  background: rgba(37,99,235,0.07);
  color: #1e40af;
  border: 1px solid #bfdbfe;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ツールカード内フィーチャーリスト（4項目対応） */
.tool-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 14px;
  font-size: 0.83rem;
  color: #334155;
}
.tool-features li {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  line-height: 1.5;
}
.tool-features i {
  color: #10b981;
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 4px;
}

/* 法改正対応バッジ */
.tool-law-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 0.77rem;
  color: #15803d;
  font-weight: 700;
  margin-bottom: 14px;
}
.tool-law-badge-new {
  background: #fefce8;
  border: 1px solid #fde68a;
  color: #92400e;
}
.tool-law-badge i, .tool-law-badge-new i { font-size: 0.85rem; flex-shrink: 0; }

/* 6列フィーチャーグリッド（選ばれる理由セクション） */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 700px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* 免責ボックス */
.portal-disclaimer-box {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 16px 18px;
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.65;
  margin: 0 0 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.portal-disclaimer-box > i {
  color: #94a3b8;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ツールカード内カテゴリーラベル */
.tool-cat {
  font-size: 0.72rem;
  color: #94a3b8;
  font-weight: 600;
  letter-spacing: 0.02em;
}