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

body {
    font-family: 'Arial', sans-serif;
    background-color: #ffffff;
    color: #333333;
}

.hero-section {
    position: relative;
    width: 100vw;
    height: 100vh;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInUp 1s ease-out;
}

.company-name {
    font-size: 3.8rem;
    font-weight: bold;
    color: #333333;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.company-slogan {
    font-size: 1.6rem;
    color: #666666;
    font-weight: 500;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    text-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.dental-model-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

#dental-model {
    width: 100%;
    height: 100%;
}

@media (max-width: 768px) {
    .company-name {
        font-size: 2.5rem;
    }
    
    .company-slogan {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .company-name {
        font-size: 2rem;
    }
    
    .company-slogan {
        font-size: 1rem;
    }
}