/* 主体样式 */
body {
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #F4F4F4;
    opacity: 0.9;
}

header {
    background-color: #003366;
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

header .logo img {
    width: 150px;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
}

nav ul li {
    margin: 0 20px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
}

.hero {
    background: url('hero-bg.jpg') no-repeat center center;
    background-size: cover;
    height: 100vh;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: 60px;
    margin-bottom: 20px;
}

.cta-btn {
    background-color: #D4AF37;
    padding: 15px 30px;
    font-size: 18px;
    text-decoration: none;
    color: white;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    background-color: #b5892f;
}

.featured-products {
    padding: 60px 20px;
    background-color: #fff;
    text-align: center;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background-color: #F8F8F8;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

.product-card img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
}

footer {
    background-color: #003366;
    color: white;
    padding: 20px;
    text-align: center;
}

footer a {
    color: #D4AF37;
    text-decoration: none;
}