/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}

/* 全局变量 */
:root {
    --primary-color: #e67e22;
    --secondary-color: #34495e;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --gray-color: #95a5a6;
    --white-color: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* 基础样式 */
body {
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 80px 0;
}

/* 标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.section-title .line {
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 0 auto 20px;
}

.section-title p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #d35400;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* 导航栏样式 */
.header {
    background-color: var(--white-color);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.logo p {
    font-size: 0.8rem;
    color: var(--gray-color);
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav a {
    font-weight: 500;
    position: relative;
}

.nav a.active::after,
.nav a:hover::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    color: var(--secondary-color);
    cursor: pointer;
}

/* 轮播图样式 */
.banner {
    height: 100vh;
    margin-top: 70px;
    overflow: hidden;
    position: relative;
}

.banner-slides {
    height: 100%;
}

.slide {
    height: 100%;
    width: 100%;
    background-size: cover;
    background-position: center;
    display: none;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white-color);
    position: absolute;
    top: 0;
    left: 0;
}

.slide.active {
    display: flex;
}

.slide-content {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 50px;
    border-radius: 10px;
    max-width: 800px;
}

.slide-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* 关于我们样式 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-img img {
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.about-text h3 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--gray-color);
    font-size: 1.1rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    background-color: rgba(230, 126, 34, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-item h4 {
    font-size: 1.1rem;
    color: var(--secondary-color);
}

.feature-item p {
    margin: 0;
    font-size: 0.9rem;
}

/* 特色服务样式 */
.services {
    background-color: var(--white-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--light-color);
    padding: 40px 20px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

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

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--gray-color);
}

/* 产品展示样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--white-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
    text-align: center;
}

.product-info h3 {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.product-info .price {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

/* 联系我们样式 */
.contact {
    background-color: var(--white-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    background-color: rgba(230, 126, 34, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--gray-color);
}

.contact-form {
    background-color: var(--light-color);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(230, 126, 34, 0.2);
}

/* 页脚样式 */
.footer {
    background-color: var(--secondary-color);
    color: var(--white-color);
    padding: 60px 0 20px;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.footer-logo p {
    color: #ccc;
}

.footer-links h4,
.footer-social h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-social h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

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

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #ccc;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .about-img {
        order: 2;
    }

    .about-text {
        order: 1;
    }

    .slide-content h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu {
        display: block;
    }

    .nav {
        display: none;
    }

    .section {
        padding: 60px 0;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .slide-content {
        padding: 30px;
    }

    .slide-content h2 {
        font-size: 2rem;
    }

    .slide-content p {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .section-title h2 {
        font-size: 1.8rem;
    }

    .banner {
        height: 80vh;
    }

    .slide-content h2 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 10px 20px;
    }

    .footer-top {
        gap: 30px;
    }
}
/* 新增：联系我们-地图样式 */
.contact-map {
    margin-bottom: 40px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* 适配移动端地图高度 */
@media (max-width: 768px) {
    .contact-map iframe {
        height: 300px;
    }
}

/* 优化联系我们板块间距（可选） */
.contact-content {
    gap: 50px;
}