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

body {
    font-family: "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    padding: 20px;
    background: rgba(255, 255, 255, 0.9);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    height: 50px;
    width: auto;
}

.company-logo {
    height: 40px;
    width: auto;
}

.hero {
    height: 100vh;
    background-image: url('https://cdn-h5.yingyingfamily.com/resources/images/2025/ef53a2d2bc5cd66309b68fbfdcfbdd2f.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 20px;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.5em;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.about, .contact {
    padding: 80px 20px;
    background: white;
}

.about {
    background: #f9f9f9;
}

h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 2em;
}

.about p {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1em;
    line-height: 1.8;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info p {
    margin: 15px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: auto;
}

footer p {
    margin: 5px 0;
}

footer a {
    color: white;
    text-decoration: none;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2em;
    }
    
    .hero p {
        font-size: 1.2em;
    }
    
    .logo-container {
        flex-direction: column;
        gap: 10px;
    }
    
    .logo, .company-logo {
        height: 40px;
    }
}