* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #fff;
    color: #333333;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #04AFFF;
    text-decoration: none;
}

.logo span {
    color: #333333;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333333;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: #04AFFF;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #04AFFF;
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 标题区域 */
.hero {
    background: linear-gradient(135deg, #ffffff 0%, #e6f7ff 100%);
    padding: 150px 20px 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: rgba(4, 175, 255, 0.1);
    z-index: 0;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -80px;
    right: -80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background-color: rgba(4, 175, 255, 0.05);
    z-index: 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #333333;
    line-height: 1.2;
}

.hero h1 span {
    color: #04AFFF;
    position: relative;
}

.hero h1 span::after {
    content: "";
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 10px;
    background-color: rgba(4, 175, 255, 0.2);
    z-index: -1;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #666;
}

.cta-button {
    display: inline-block;
    background-color: #04AFFF;
    color: white;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(4, 175, 255, 0.3);
}

.cta-button:hover {
    background-color: #038fd1;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(4, 175, 255, 0.4);
}

/* 宣传图区域 */
.promotion {
    padding: 80px 20px;
    background-color: #fff;
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    color: #333333;
    margin-bottom: 50px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: #04AFFF;
    border-radius: 2px;
}

.promotion-image {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    display: block;
    transition: transform 0.3s ease;
}

.promotion-image:hover {
    transform: scale(1.02);
}

/* 关于我们 */
.about {
    padding: 100px 20px;
    background-color: #f8f9fa;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #333333;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #555;
}

.about-image {
    flex: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* 产品展示 */
.products {
    padding: 100px 20px;
    background-color: #fff;
}

.products-container {
    max-width: 1200px;
    margin: 0 auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.product-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    padding: 30px 20px;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(4, 175, 255, 0.15);
}

.product-icon {
    width: 100%;
    font-size: 3rem;
    color: #04AFFF;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333333;
}

.product-card h3 i{
    font-size: 1.5rem;
    color: #04AFFF;
}

.product-card p {
    color: #666;
    margin-bottom: 20px;
}

/* 加工技术 */
.technology {
    padding: 100px 20px;
    background-color: #f8f9fa;
}

.tech-container {
    max-width: 1200px;
    margin: 0 auto;
}

.tech-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.tech-image {
    flex: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.tech-image img {
    width: 100%;
    height: auto;
    display: block;
}

.tech-details {
    flex: 1;
}

.tech-details h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #333333;
}

.tech-details p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #555;
}

.tech-process {
    margin-top: 30px;
}

.process-step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.step-number {
    background-color: #04AFFF;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 20px;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #333333;
}

.step-content p {
    margin-bottom: 0;
    color: #666;
}

/* 联系我们 */
.contact {
    padding: 100px 20px;
    background-color: #fff;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #333333;
}

.contact-details {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-icon {
    font-size: 1.5rem;
    color: #04AFFF;
    margin-right: 20px;
    margin-top: 5px;
}

.contact-text h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: #333333;
}

.contact-text p, .contact-text a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-text a:hover {
    color: #04AFFF;
}

.contact-form {
    flex: 1;
    background: #f8f9fa;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #04AFFF;
    outline: none;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.submit-btn {
    background-color: #04AFFF;
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(4, 175, 255, 0.3);
}

.submit-btn:hover {
    background-color: #038fd1;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(4, 175, 255, 0.4);
}

/* 页脚 */
.footer {
    background-color: #333333;
    color: #fff;
    padding: 70px 20px 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-col h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: #04AFFF;
}

.footer-col p {
    margin-bottom: 20px;
    color: #ccc;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #444;
    border-radius: 50%;
    color: #fff;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #04AFFF;
    transform: translateY(-5px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
}

.footer-links a:hover {
    color: #04AFFF;
}

.footer-links i {
    margin-right: 10px;
    color: #04AFFF;
}

.copyright {
    text-align: center;
    padding-top: 40px;
    margin-top: 40px;
    border-top: 1px solid #444;
    color: #aaa;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-container,
    .tech-content,
    .contact-container {
        flex-direction: column;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 130px 20px 80px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}