* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
}

.title {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInDown 1s ease-out;
}

.current-date {
    font-size: 1.5rem;
    color: #f0f0f0;
    font-weight: 300;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.countdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    width: 100%;
    max-width: 1000px;
}

.countdown-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out;
}

.countdown-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.countdown-card.weekend {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    color: #fff;
}

.countdown-card.holiday {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.countdown-card.salary {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.countdown-card.retirement {
    background: linear-gradient(135deg, #c3cfe2 0%, #c3cfe2 100%);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.countdown-card.weekend .card-title {
    color: #fff;
}

.countdown-days {
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 10px;
}

.countdown-card.weekend .countdown-days {
    color: #fff;
}

.countdown-label {
    font-size: 1rem;
    color: #666;
    font-weight: 400;
}

.countdown-card.weekend .countdown-label {
    color: #f0f0f0;
}

.countdown-date {
    font-size: 0.9rem;
    color: #888;
    margin-top: 10px;
    font-style: italic;
}

.countdown-card.weekend .countdown-date {
    color: #f0f0f0;
}

.footer {
    text-align: center;
    padding: 30px 0;
    color: #f0f0f0;
    font-size: 0.9rem;
}

/* 动画效果 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .title {
        font-size: 2.5rem;
    }
    
    .current-date {
        font-size: 1.2rem;
    }
    
    .countdown-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .countdown-card {
        padding: 25px;
    }
    
    .countdown-days {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .current-date {
        font-size: 1rem;
    }
    
    .countdown-card {
        padding: 20px;
    }
    
    .card-icon {
        font-size: 2.5rem;
    }
    
    .card-title {
        font-size: 1.3rem;
    }
    
    .countdown-days {
        font-size: 1.8rem;
    }
}