body { font-family: 'Segoe UI', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', メイリオ, meiryo, sans-serif; background: linear-gradient(to right, #2c3e50, #3498db); color: #ecf0f1; margin: 0; padding: 0; } .container { background: rgba(44, 62, 80, 0.9); border-radius: 15px; padding: 20px; margin: 15px …