/* テンプレート42: 医療/健康系タブナビ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Noto Sans JP', sans-serif; font-size: 16px; line-height: 1.9; color: #1b5e20; background: linear-gradient(180deg, #e8f5e9 0%, #c8e6c9 100%); min-height: 100vh; }

.site-header { background: linear-gradient(135deg, #2e7d32 0%, #388e3c 50%, #43a047 100%); padding: 25px 30px; text-align: center; }
.site-title { font-size: 1.8rem; font-weight: 700; color: #fff; }

.tab-nav { background: #fff; border-bottom: 3px solid #4caf50; position: sticky; top: 0; z-index: 1000; }
.tab-nav ul { list-style: none; display: flex; justify-content: center; max-width: 1000px; margin: 0 auto; }
.tab-nav a { display: block; padding: 18px 28px; color: #2e7d32; text-decoration: none; font-weight: 500; border-bottom: 3px solid transparent; margin-bottom: -3px; transition: all 0.3s; }
.tab-nav a:hover, .tab-nav a.active { color: #1b5e20; border-bottom-color: #4caf50; background: #e8f5e9; }

.main-content { padding: 50px 0; }
.container { max-width: 900px; margin: 0 auto; padding: 0 30px; }

.content-box { background: #fff; border-radius: 16px; padding: 45px; box-shadow: 0 8px 30px rgba(46, 125, 50, 0.1); border-left: 5px solid #4caf50; margin-bottom: 30px; }
.content-box h2 { font-size: 1.5rem; color: #2e7d32; margin-bottom: 20px; }
.content-box p { color: #33691e; margin-bottom: 15px; }

.single-image { text-align: center; margin: 25px 0; }
.single-image img { max-width: 100%; height: auto; max-height: 300px; border-radius: 12px; box-shadow: 0 5px 20px rgba(46, 125, 50, 0.15); }

.stats-row { display: flex; justify-content: space-around; margin: 40px 0; padding: 30px; background: linear-gradient(135deg, #43a047 0%, #2e7d32 100%); border-radius: 12px; }
.stat-item { text-align: center; color: #fff; }
.stat-number { font-size: 2.5rem; font-weight: 700; display: block; }
.stat-label { font-size: 0.9rem; opacity: 0.9; }

.site-footer { background: linear-gradient(135deg, #1b5e20 0%, #2e7d32 100%); color: rgba(255,255,255,0.8); padding: 40px; text-align: center; }
.footer-nav a { color: rgba(255,255,255,0.8); text-decoration: none; margin: 0 15px; }
.footer-nav a:hover { color: #fff; }

.back-to-top { display: none; position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: #4caf50; color: #fff; border: none; border-radius: 50%; cursor: pointer; font-size: 1.2rem; z-index: 998; }

.fade-in { opacity: 0; transform: translateY(30px); transition: all 0.7s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

.sitemap-list { list-style: none; }
.sitemap-list li { margin-bottom: 12px; padding-left: 20px; position: relative; }
.sitemap-list li::before { content: '✓'; position: absolute; left: 0; color: #4caf50; }
.sitemap-list a { color: #2e7d32; text-decoration: none; }

@media (max-width: 768px) {
    .tab-nav ul { flex-wrap: wrap; }
    .tab-nav a { padding: 12px 15px; font-size: 0.85rem; }
    .stats-row { flex-direction: column; gap: 20px; }
}