/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "微软雅黑", "Microsoft YaHei", "黑体", "SimHei", sans-serif;
    /* font-family: 'Noto Sans SC', sans-serif; */
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #3498db;
}

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

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #3498db;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
    padding: 120px 0;
    text-align: center;
    margin-top: 70px;
}

.hero-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content h3 {
    font-size: 28px;
    margin-bottom: 30px;
    font-weight: 500;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    display: inline-block;
    background-color: #fff;
    color: #3498db;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 通用部分样式 */
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: #3498db;
    margin: 20px auto 0;
}

/* 服务区域 */
.services {
    padding: 100px 0;
    background-color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    margin-bottom: 20px;
}

.service-icon img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    /* border-radius: 50%; */
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: #f5f5f5;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.8;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background-color: #fff;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.contact-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.contact-info p {
    margin-bottom: 15px;
    color: #666;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    margin: 0;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        padding: 15px;
    }

    nav ul {
        margin-top: 15px;
    }

    nav ul li {
        margin-left: 15px;
        margin-right: 15px;
    }

    .hero {
        padding: 100px 0;
    }

    .hero-content h2 {
        font-size: 28px;
    }

    .hero-content h3 {
        font-size: 24px;
    }

    .services,
    .about,
    .contact {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .about-content,
    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 24px;
    }

    .hero-content h3 {
        font-size: 20px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .service-card,
    .contact-info,
    .contact-form {
        padding: 30px;
    }
}

/* 滚动动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}


.contact-form iframe {
    width: 100%;
    height: 700px;
    border: none;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    /* margin-top: 90px;  */
    /* transform: translateY(-60px); */
    /* overflow-y: hidden; */
}