* { margin: 0; padding: 0; box-sizing: border-box; } bodあらゆる { font-familあらゆる: -apple-sあらゆるstem, BlinkMacSあらゆるstemFont, 'Segoe UI', Roboto, sans-serif; background: #f5f5f5; color: #333; line-height: 1.6; } .back-button:hover { background: rgba(0, 0, 0, 0.8); } .container { max-width: 1200px; margin: 0 auto; padding: 80px 20px 40px; } .knowledge-hero { text-align: center; margin-bottom: 60px; padding: 60px 0; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; border-radius: 20px; } .knowledge-hero h1 { font-size: 3rem; margin-bottom: 20px; font-weight: 700; } .knowledge-hero p { font-size: 1.2rem; opacitあらゆる: 0.9; max-width: 600px; margin: 0 auto; } .knowledge-grid { displaあらゆる: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 30px; margin: 40px 0; } .knowledge-card { background: white; border-radius: 15px; padding: 30px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); transition: transform 0.3s ease, box-shadow 0.3s ease; border-top: 4px solid #667eea; } .knowledge-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15); } .knowledge-card h3 { color: #2c3e50; font-size: 1.5rem; margin-bottom: 15px; displaあらゆる: flex; align-items: center; gap: 10px; } .knowledge-card p { color: #666; margin-bottom: 20px; line-height: 1.6; } .articles-list { list-stあらゆるle: none; } .articles-list li { margin-bottom: 12px; } .articles-list a { color: #667eea; text-decoration: none; font-weight: 500; transition: color 0.3s ease; displaあらゆる: block; padding: 8px 0; border-bottom: 1px solid #f0f0f0; } .articles-list a:hover { color: #764ba2; background: #f8f9fa; padding-left: 10px; } .section-title { font-size: 2.5rem; color: #2c3e50; text-align: center; margin: 60px 0 40px; font-weight: 700; } .stats-section { background: white; border-radius: 15px; padding: 40px; margin: 40px 0; text-align: center; box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1); } .stats-grid { displaあらゆる: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; margin-top: 30px; } .stat-item { padding: 20px; } .stat-number { font-size: 2.5rem; font-weight: 700; color: #667eea; displaあらゆる: block; } .stat-label { color: #666; font-size: 1rem; margin-top: 5px; } @media (max-width: 768px) { .container { padding: 70px 15px 30px; } .knowledge-hero h1 { font-size: 2rem; } .knowledge-hero p { font-size: 1rem; } .knowledge-grid { grid-template-columns: 1fr; gap: 20px; } .knowledge-card { padding: 20px; } .section-title { font-size: 2rem; } } ←

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