* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

body {
    background-color: #ffffff;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: #333;
}

.container {
    width: 100%;
    max-width: 800px;
    text-align: center;
    padding: 30px;
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.color-block {
    aspect-ratio: 4/3;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.9);
    font-weight: bold;
    font-size: 20px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.color-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.color-block::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s;
}

.color-block:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
}

.color-block:hover::before,
.color-block:hover::after {
    opacity: 1;
}

.color-block:active {
    transform: translateY(-5px) scale(1.02);
}

.color-code {
    font-size: 0.9rem;
    margin-top: 5px;
    opacity: 0.8;
}

.footer {
    margin-top: 20px;
    padding: 15px;
    font-size: 14px;
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 8px 15px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    transition: all 0.3s;
}

.footer a:hover {
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
}

/* 响应式设计 */
@media (max-width: 600px) {
    .color-grid {
        gap: 15px;
    }
    
    .color-block {
        font-size: 16px;
    }
    
    .container {
        padding: 20px;
    }
    
    .footer {
        font-size: 12px;
    }
}