/* 基本样式 */
:root {
    --primary-color: #f0a500; /* TPES金黄色 */
    --secondary-color: #1a1c20; /* 深灰色 */
    --accent-color: #cf7500; /* 深橙色 */
    --light-color: #f4f4f4; /* 浅灰色 */
    --dark-color: #333; /* 深色 */
    --text-color: #555; /* 文本颜色 */
    --white-color: #fff; /* 白色 */
    --border-color: #e0e0e0; /* 边框颜色 */
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1); /* 阴影 */
    --transition: all 0.3s ease; /* 过渡效果 */
    --border-radius: 5px; /* 边框圆角 */
    --section-padding: 80px 0; /* 区块内边距 */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white-color);
    overflow-x: hidden;
}

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

a:hover {
    color: var(--primary-color);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.section-padding {
    padding: var(--section-padding);
}

.bg-light {
    background-color: var(--light-color);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-header p {
    font-size: 18px;
    color: var(--text-color);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.btn-primary:hover {
    background-color: var(--accent-color);
    color: var(--white-color);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--white-color);
}

.btn-secondary:hover {
    background-color: var(--dark-color);
    color: var(--white-color);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white-color);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo a {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-color);
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo .site-name {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo .domain {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 22px;
}

.main-nav ul {
    display: flex;
}

.main-nav li {
    margin-left: 30px;
    position: relative;
}

.main-nav a {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-color);
    padding: 10px 0;
    display: block;
}

.main-nav a:hover {
    color: var(--primary-color);
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white-color);
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    min-width: 400px;
    display: flex;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 1;
    padding: 20px;
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-section {
    flex: 1;
    padding: 0 15px;
}

.dropdown-section h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-section a {
    display: block;
    padding: 8px 0;
    font-size: 14px;
    font-weight: 400;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* 英雄区块 */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../graphics/tree-736885.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white-color);
    margin-top: 70px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    animation: fadeInDown 1s;
}

.hero h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 20px;
    animation: fadeInDown 1s 0.2s;
    animation-fill-mode: both;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    animation: fadeInUp 1s 0.4s;
    animation-fill-mode: both;
}

.hero-buttons {
    animation: fadeInUp 1s 0.6s;
    animation-fill-mode: both;
}

.hero-buttons .btn {
    margin: 0 10px;
}

/* 关于TPES */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 18px;
    line-height: 1.8;
}

.about-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.card {
    flex: 1;
    min-width: 300px;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

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

.card-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 30px;
}

.card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.card p {
    font-size: 16px;
    line-height: 1.6;
}

/* 理论基础 */
.theory-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

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

.theory-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    width: 100%;
    height: auto;
}

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

.theory-text p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.theory-boxes {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.theory-box {
    flex: 1;
    min-width: 250px;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.theory-box h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 10px;
    position: relative;
    padding-left: 20px;
}

.theory-box h4:before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.theory-box p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 0;
}

/* 应用系列 */
.application-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.tab-btn {
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    background-color: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s;
}

.tab-pane.active {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

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

.tab-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

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

.tab-text h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.tab-text p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.tab-text ul {
    margin-bottom: 20px;
}

.tab-text li {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.tab-text li i {
    color: var(--primary-color);
    margin-right: 10px;
}

/* 产品介绍 */
.product-categories {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.category-header {
    text-align: center;
    margin-bottom: 30px;
}

.category-header h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
}

.category-header h3:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.product-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.product-card {
    flex: 1;
    min-width: 300px;
    max-width: 380px;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.product-image {
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-info {
    padding: 20px;
}

.product-info h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.product-info p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    min-height: 80px;
}

.product-info .feature-list {
    margin-bottom: 20px;
}

.product-info .feature-list li {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
}

.product-info .feature-list li i {
    color: var(--primary-color);
    margin-right: 10px;
    margin-top: 3px;
}

/* 核心技术 */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.tech-card {
    flex: 1;
    min-width: 200px;
    max-width: 250px;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
}

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
}

.tech-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.tech-card p {
    font-size: 14px;
    line-height: 1.6;
}

/* 最新动态 */
.news-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.news-card {
    flex: 1;
    min-width: 250px;
    max-width: 280px;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

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

.news-image {
    height: 180px;
    overflow: hidden;
    position: relative;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-date {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 5px 10px;
    border-radius: var(--border-radius);
    text-align: center;
    line-height: 1.2;
}

.news-date .day {
    font-size: 18px;
    font-weight: 700;
    display: block;
}

.news-date .month {
    font-size: 14px;
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-content h3 a {
    color: var(--dark-color);
}

.news-content h3 a:hover {
    color: var(--primary-color);
}

.news-content p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
    min-height: 70px;
}

.read-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 5px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

.news-more {
    text-align: center;
    margin-top: 40px;
}

/* 联系我们 */
.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    font-size: 20px;
}

.info-text h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.info-text p {
    font-size: 16px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--accent-color);
    color: var(--white-color);
    transform: translateY(-5px);
}

.contact-form {
    flex: 1;
    min-width: 300px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    font-size: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-group textarea {
    height: 150px;
    resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 底部栏 */
.footer {
    background-color: var(--secondary-color);
    color: var(--white-color);
    padding-top: 70px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
}

.footer-logo p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-column {
    flex: 1;
    min-width: 150px;
}

.footer-column h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

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

.footer-column ul li a {
    color: #ccc;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-column .contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    font-size: 14px;
    color: #ccc;
}

.footer-column .contact-info li i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* 文章页面样式 */
.article-section {
    margin-top: 100px;
}

.article-header {
    margin-bottom: 30px;
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.article-meta span {
    font-size: 14px;
    color: var(--text-color);
    display: flex;
    align-items: center;
}

.article-meta span i {
    margin-right: 5px;
    color: var(--primary-color);
}

.article-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-author {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.article-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
}

.article-author span {
    font-size: 16px;
    font-weight: 600;
}

.article-featured-image {
    margin-bottom: 30px;
}

.article-featured-image img {
    width: 100%;
    border-radius: var(--border-radius);
}

.article-content {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 40px;
}

.article-content h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--dark-color);
    margin: 40px 0 20px;
}

.article-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--dark-color);
    margin: 30px 0 15px;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content blockquote {
    padding: 20px;
    background-color: #f9f9f9;
    border-left: 4px solid var(--primary-color);
    margin: 30px 0;
    font-style: italic;
}

.article-content blockquote p {
    margin-bottom: 10px;
}

.article-content blockquote cite {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-color);
}

.article-image {
    margin: 30px 0;
    text-align: center;
}

.article-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
}

.image-caption {
    font-size: 14px;
    color: var(--text-color);
    text-align: center;
    margin-top: 10px;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 20px;
}

.tag-label {
    font-size: 16px;
    font-weight: 600;
    margin-right: 10px;
}

.tag {
    display: inline-block;
    padding: 5px 15px;
    background-color: #f0f0f0;
    color: var(--text-color);
    border-radius: 20px;
    font-size: 14px;
    margin-right: 10px;
    margin-bottom: 10px;
    transition: var(--transition);
}

.tag:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.article-share {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
}

.share-label {
    font-size: 16px;
    font-weight: 600;
    margin-right: 15px;
}

.share-link {
    width: 40px;
    height: 40px;
    background-color: #f0f0f0;
    color: var(--text-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    transition: var(--transition);
}

.share-link:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.related-articles-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.article-card {
    flex: 1;
    min-width: 300px;
    max-width: 350px;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

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

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image img {
    transform: scale(1.1);
}

.article-info {
    padding: 20px;
}

.article-date {
    font-size: 14px;
    color: var(--text-color);
    margin-bottom: 10px;
    display: block;
}

.article-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.article-info h3 a {
    color: var(--dark-color);
}

.article-info h3 a:hover {
    color: var(--primary-color);
}

.article-info p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-header h2 {
        font-size: 32px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero h2 {
        font-size: 30px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .about-text p,
    .theory-text p,
    .tab-text p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 250px;
    }
    
    .article-title {
        font-size: 32px;
    }
    
    .article-content {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        box-shadow: var(--shadow);
        padding: 20px;
        z-index: 999;
    }
    
    .main-nav.active {
        display: block;
        animation: fadeIn 0.3s;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 0 0 15px 0;
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: auto;
        display: none;
        padding: 10px 0 10px 20px;
    }
    
    .dropdown:hover .dropdown-content {
        display: block;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero h2 {
        font-size: 26px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-content h2 {
        font-size: 24px;
    }
    
    .article-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 24px;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .hero h2 {
        font-size: 22px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .article-title {
        font-size: 24px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* 产品页面样式 */
.page-title {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 80px 0;
    margin-top: 70px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.page-title .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.page-title h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}


.page-title h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-features {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.product-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.product-features li i {
    color: var(--primary-color);
    margin-right: 10px;
}

.solutions-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.solution-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-10px);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.solution-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.case-studies-slider {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-study {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 30px;
}

.case-results {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
}

.result-item {
    text-align: center;
}

.result-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

.info-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-content h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-wrapper {
        grid-template-columns: 1fr;
    }
    
    .case-studies-slider {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-header h2 {
        font-size: 32px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero h2 {
        font-size: 30px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .about-text p,
    .theory-text p,
    .tab-text p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 250px;
    }
    
    .article-title {
        font-size: 32px;
    }
    
    .article-content {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        box-shadow: var(--shadow);
        padding: 20px;
        z-index: 999;
    }
    
    .main-nav.active {
        display: block;
        animation: fadeIn 0.3s;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 0 0 15px 0;
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: auto;
        display: none;
        padding: 10px 0 10px 20px;
    }
    
    .dropdown:hover .dropdown-content {
        display: block;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero h2 {
        font-size: 26px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-content h2 {
        font-size: 24px;
    }
    
    .article-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 24px;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .hero h2 {
        font-size: 22px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .article-title {
        font-size: 24px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* 产品页面样式 */
.page-title {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 80px 0;
    margin-top: 70px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.page-title .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.page-title h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}


.page-title h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-features {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.product-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.product-features li i {
    color: var(--primary-color);
    margin-right: 10px;
}

.solutions-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.solution-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-10px);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.solution-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.case-studies-slider {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-study {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 30px;
}

.case-results {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
}

.result-item {
    text-align: center;
}

.result-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

.info-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-content h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-wrapper {
        grid-template-columns: 1fr;
    }
    
    .case-studies-slider {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-header h2 {
        font-size: 32px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero h2 {
        font-size: 30px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .about-text p,
    .theory-text p,
    .tab-text p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 250px;
    }
    
    .article-title {
        font-size: 32px;
    }
    
    .article-content {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        box-shadow: var(--shadow);
        padding: 20px;
        z-index: 999;
    }
    
    .main-nav.active {
        display: block;
        animation: fadeIn 0.3s;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 0 0 15px 0;
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: auto;
        display: none;
        padding: 10px 0 10px 20px;
    }
    
    .dropdown:hover .dropdown-content {
        display: block;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero h2 {
        font-size: 26px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-content h2 {
        font-size: 24px;
    }
    
    .article-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 24px;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .hero h2 {
        font-size: 22px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .article-title {
        font-size: 24px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* 产品页面样式 */
.page-title {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 80px 0;
    margin-top: 70px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.page-title .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.page-title h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}


.page-title h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-features {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.product-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.product-features li i {
    color: var(--primary-color);
    margin-right: 10px;
}

.solutions-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.solution-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-10px);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.solution-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.case-studies-slider {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-study {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 30px;
}

.case-results {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
}

.result-item {
    text-align: center;
}

.result-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

.info-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-content h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-wrapper {
        grid-template-columns: 1fr;
    }
    
    .case-studies-slider {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-header h2 {
        font-size: 32px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero h2 {
        font-size: 30px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .about-text p,
    .theory-text p,
    .tab-text p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 250px;
    }
    
    .article-title {
        font-size: 32px;
    }
    
    .article-content {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        box-shadow: var(--shadow);
        padding: 20px;
        z-index: 999;
    }
    
    .main-nav.active {
        display: block;
        animation: fadeIn 0.3s;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 0 0 15px 0;
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: auto;
        display: none;
        padding: 10px 0 10px 20px;
    }
    
    .dropdown:hover .dropdown-content {
        display: block;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero h2 {
        font-size: 26px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-content h2 {
        font-size: 24px;
    }
    
    .article-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 24px;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .hero h2 {
        font-size: 22px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .article-title {
        font-size: 24px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* 产品页面样式 */
.page-title {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 80px 0;
    margin-top: 70px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.page-title .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.page-title h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}


.page-title h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-features {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.product-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.product-features li i {
    color: var(--primary-color);
    margin-right: 10px;
}

.solutions-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.solution-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-10px);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.solution-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.case-studies-slider {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-study {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 30px;
}

.case-results {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
}

.result-item {
    text-align: center;
}

.result-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(240, 165, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

.info-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-content h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-wrapper {
        grid-template-columns: 1fr;
    }
    
    .case-studies-slider {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-header h2 {
        font-size: 32px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero h2 {
        font-size: 30px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .about-text p,
    .theory-text p,
    .tab-text p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 250px;
    }
    
    .article-title {
        font-size: 32px;
    }
    
    .article-content {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        box-shadow: var(--shadow);
        padding: 20px;
        z-index: 999;
    }
    
    .main-nav.active {
        display: block;
        animation: fadeIn 0.3s;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 0 0 15px 0;
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: auto;
        display: none;
        padding: 10px 0 10px 20px;
    }
    
    .dropdown:hover .dropdown-content {
        display: block;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero h2 {
        font-size: 26px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .card,
    .theory-box,
    .product-card,
    .tech-card,
    .news-card,
    .article-card {
        min-width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-content h2 {
        font-size: 24px;
    }
    
    .article-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 24px;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .hero h2 {
        font-size: 22px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .article-title {
        font-size: 24px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* 产品页面样式 */
.page-title {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 80px 0;
    margin-top: 70px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-title h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}