/* 基础样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f4f4f4;
    line-height: 1.6;
}

header {
    background-color: #0073e6;
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .logo img {
    height: 50px;
}

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

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.language-switcher button {
    background-color: transparent;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1em;
    margin-left: 10px;
}

.language-switcher button:hover {
    text-decoration: underline;
}

/* 首页大图展示 */
.hero {
    background-image: url('hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 150px 20px;
}

.hero-content h1 {
    font-size: 3em;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.5em;
    margin-bottom: 40px;
}

.cta-button {
    background-color: #ff6600;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.2em;
}

/* 公司简介 */
.about {
    display: flex;
    align-items: center;
    padding: 60px 20px;
    background-color: white;
}

.about-content {
    flex: 1;
    padding-right: 40px;
}

.about-content h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.about-content p {
    font-size: 1.1em;
    margin-bottom: 30px;
}

.cta-button-secondary {
    background-color: #0073e6;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
}

.about-image img {
    max-width: 100%;
    border-radius: 10px;
}

/* 核心产品展示 */
.featured-products {
    padding: 60px 20px;
    background-color: #f9f9f9;
    text-align: center;
}

.featured-products h2 {
    font-size: 2.5em;
    margin-bottom: 40px;
}

.product-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.product-card {
    background-color: white;
    padding: 20px;
    margin: 10px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 30%;
    text-align: center;
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-card img {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
}

.product-card h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
    color: #0073e6;
}

.product-card p {
    font-size: 1em;
    margin-bottom: 15px;
    color: #666;
}

.cta-button-small {
    background-color: #ff6600;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.9em;
    transition: background-color 0.3s ease;
}

.cta-button-small:hover {
    background-color: #e65c00;
}

/* 页脚 */
footer {
    background-color: #333;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.footer-section {
    width: 30%;
    text-align: left;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: #ff6600;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: white;
    text-decoration: none;
}

.social-media a {
    color: white;
    margin: 0 10px;
    font-size: 1.5em;
    transition: color 0.3s ease;
}

.social-media a:hover {
    color: #ff6600;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 20px;
}