body { font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif; color: #333; margin: 0; padding: 0; background-color: #f9f9f9; }
.container { max-width: 800px; margin: 0 auto; padding: 40px 20px; text-align: center; }
h1 { color: #d32f2f; font-size: 2.5rem; margin-bottom: 20px; }
.description { line-height: 1.8; margin-bottom: 40px; }
.timer-container { background: #fff; border: 2px solid #d32f2f; border-radius: 10px; padding: 20px; display: inline-block; margin-top: 20px; }
.timer-label { font-size: 1.2rem; margin-bottom: 10px; color: #d32f2f; font-weight: bold; }
#countdown { font-size: 2rem; font-weight: bold; font-family: 'Courier New', Courier, monospace; }