/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

/* iOS特定样式 */
@supports (-webkit-touch-callout: none) {
    .chat-input {
        font-size: 16px !important;
        /* 防止iOS自动缩放 */
    }
}


.section-description {
    display: none;
}

.text-containers {
    /* 限制只显示1行文本 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* 控制显示的行数（1行） */
    -webkit-box-orient: vertical;
    overflow: hidden;
    /* 超出部分隐藏 */
    text-overflow: ellipsis;
    /* 可选：末尾显示省略号 */
    white-space: normal;
    /* 允许文本换行 */
}

a {
    text-decoration: none;
}

/* 全局滚动条隐藏（推荐） */
.scrollbar-hidden {
    overflow: auto;
    /* 保留滚动 */
    -ms-overflow-style: none;
    /* IE 10+ */
    scrollbar-width: none;
    /* Firefox */
}

.scrollbar-hidden::-webkit-scrollbar,
.scrollbar-hidden *::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari/Edge */
}

img.lazyload {

    transition: opacity 0.6s ease;
}

img.loaded {
    opacity: 1;
    /* background-color: #e7e7e7; */
}

.ellipsis {
    white-space: nowrap;
    overflow: hidden;
    /* 超出隐藏 */
    text-overflow: ellipsis;
    /* 显示省略号 */
}

.ellipsis2 {
    display: -webkit-box;
    /* 必须，创建伸缩盒子 */
    -webkit-box-orient: vertical;
    /* 必须，定义盒子方向为垂直 */
    -webkit-line-clamp: 2;
    /* 显示几行 */
    overflow: hidden;
    /* 超出隐藏 */
    text-overflow: ellipsis;
    /* 显示省略号 */
}

.ellipsis4 {
    display: -webkit-box;
    /* 必须，创建伸缩盒子 */
    -webkit-box-orient: vertical;
    /* 必须，定义盒子方向为垂直 */
    -webkit-line-clamp: 4;
    /* 显示几行 */
    overflow: hidden;
    /* 超出隐藏 */
    text-overflow: ellipsis;
    /* 显示省略号 */
}

/* 容器 */
.container {
    max-width: 83%;
    margin: 0 auto;
    padding: 0 20px;
}

/* 产品中心和合作伙伴的容器特殊处理 */
.product-center .container,
.partners .container {
    max-width: 83%;
    padding: 0 20px;
    width: 100%;
    overflow: hidden;
}

/* 顶部导航栏 */
.top-nav {
    background-color: #2c3e50;
    color: white;
    padding: 8px 0;
    font-size: 14px;
}

.top-nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.top-nav-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.top-nav-links a:hover {
    color: #3498db;
}

.lang-toggle {
    display: block;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background-color: #FFFFFF;
    color: #1E6FBA !important;
    box-shadow: 2px 2px 8px 0px rgba(0, 0, 0, 0.05), 0px -2px 8px 0px rgba(0, 0, 0, 0.05), -2px 0px 8px 0px rgba(0, 0, 0, 0.05), 0px 2px 8px 0px rgba(0, 0, 0, 0.05);
    font-size: 14px;
    line-height: 34px;
    text-align: center;
}

.lang-toggle a {
    color: #1E6FBA !important;
}

/* 导航栏 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    width: 69px;
    height: 64px;
    /* background-image: url("../images/logo.svg");
    background-size: cover; */
}

.nav-logo img {
    width: 100%;
    height: 100%;
}

.nav-menu {
    height: 80px;
    line-height: 80px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 60px;
    height: 80px;
    line-height: 80px;
    align-items: center;
}

.nav-link {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: #3F92B7;
}

.nav-list li {
    position: relative;
}

.nav-list li.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 44px;
    height: 2px;
    background-color: #3F92B7;
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主要内容区域 */
main {
    margin-top: 0;
}

/* 浮动帮助按钮 */
.floating-help {
    position: fixed;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: #3498db;
    color: white;
    padding: 15px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.floating-help:hover {
    background: #2980b9;
    transform: translateY(-50%) scale(1.05);
}

.help-icon {
    font-size: 20px;
}

/* 英雄区域 - 轮播图 */
.hero-banner {
    position: relative;
    width: 100%;
    aspect-ratio: 1920 / 740;
    /* 直接使用aspect-ratio保持图片原始比例 */
    min-height: 300px;
    /* 设置最小高度确保在小屏幕上不会太矮 */
    max-height: 600px;
    /* 设置最大高度避免在大屏幕上过高 */
    overflow: hidden;
}

.banner-slider {
    position: relative;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
}

.banner-bg {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.banner-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
}

.banner-content {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    justify-content: center;
}

.banner-content img {
    width: 100%;
    height: auto;
    /* object-fit: cover; */
}

.banner-content .banner-text {
    position: absolute;
    z-index: 10;
    top: 15%;
    text-align: center;
}

.banner-content .banner-text-change {
    position: absolute;
    z-index: 10;
    top: 25%;
    left: 200px
}

.banner-content h1 {
    font-family: PingFang SC, PingFang SC;
    font-weight: bold;
    font-size: 44px;
    color: #FFFFFF;
}

.banner-content p {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 400;
    font-size: 28px;
    color: #FFFFFF;
    margin-top: 30px;
}

.banner-controls {
    position: absolute;
    bottom: 30px;
    left: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 3;
}

.banner-dots {
    display: flex;
    gap: 10px;
}

.banner-dots .dot {
    background: rgba(255, 255, 255, 0.5);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.banner-dots .dot.active {
    background: #3498db;
}

.banner-arrows {
    display: flex;
    gap: 10px;
}

.banner-arrows .arrow {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s ease;
}

.banner-arrows .arrow:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background-color: white;
    color: #3498db;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-placeholder {
    width: 100%;
    height: 300px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 2px dashed rgba(255, 255, 255, 0.3);
}

/* 特色服务 */
.features {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 32px;
    padding-bottom: 9px;
    color: #2c3e50;

}

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

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

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

/* 关于我们预览 */
.about-preview {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #2c3e50;
}

.about-text p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-image {
    display: flex;
    justify-content: center;
}

.about-placeholder {
    width: 100%;
    height: 300px;
    background-color: #f0f0f0;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #666;
    border: 2px dashed #ddd;
}

/* 产品中心 */
.product-center {
    padding: 25px 0;
    background-color: #f8f9fa;
}

.product-tabs {
    width: 100%;
    padding: 0 10%;
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 50px;
    /* white-space: nowrap; */
    /* overflow-x: scroll; */
    overflow: auto;
    border-bottom: 1px solid #D4D7D7;
}

.tab-btn {
    padding: 10px 0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    position: relative;
}

.tab-btn.active,
.tab-btn:hover {
    color: #3F92B7;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background-color: #3F92B7;
}

.product-list {
    margin-top: 20px;
    --swiper-theme-color: #3F92B7;
}

.product-list .swiper {
    width: 100%;
}

.product-list .swiper-pagination {
    margin-top: 10px;
    bottom: auto !important;
}

.product-card {
    /* height: 395px; */
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.product-to-arrow {
    width: 30px !important;
    height: 30px !important;
    opacity: 0;
    position: absolute;
    top: 15px;
    right: 15px;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    cursor: pointer;
}

.product-card:hover .product-to-arrow {
    opacity: 1;
}

.product-card:hover .product-content {
    /* transform: translateY(-5px); */
    background-color: #3F92B7;
}

.product-card:hover .product-content h3,
.product-card:hover .product-content p {
    color: #FFFFFF;
}

.product-content {
    height: 87px;
    padding: 15px 10px;
    text-align: left;
    transition: background-color 0.3s ease;
}

.product-image {
    height: 200px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: 100%;
    height: 100%;
}

.flask-title {
    /* width: 120px; */
    line-height: 1.2;
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 500;
    font-size: 20px;
    color: #3F92B7;
    /* word-break: break-all; */
    position: absolute;
    top: 46%;
    text-align: center;
}

.flask-title.hot {
    top: 60%;
}

.flask-title.list {
    top: 60%;
}

.flask-title.__detail {
    top: 58%;
}

.product-content h3 {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: bold;
    font-size: 24px;
    color: #333333;
    text-align: left;
    transition: color 0.3s ease;
}

.product-content p {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 400;
    font-size: 14px;
    color: #666666;
    text-align: justified;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.product-pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.product-pagination .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-pagination .dot.active {
    background: #3498db;
}

/* 成就展示区域 */
.about-achievement {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.about-container {
    width: 83%;
    margin: 0 auto;
    /* padding: 0 20px; */
}

.about-achievement-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-achievement-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 10px;
}

.about-achievement-item div:first-child {
    font-size: 3rem;
    font-weight: bold;
    color: #3F92B7;
    margin-bottom: 15px;
    line-height: 1;
}

.about-achievement-item div:first-child span {
    font-size: 3.5rem;
    font-weight: 900;
    color: #3F92B7;
}

.about-achievement-item div:last-child {
    font-size: 1.1rem;
    color: #2c3e50;
    line-height: 1.4;
    font-weight: 500;
}

/* 移动端成就展示区域单列布局 */
@media (max-width: 768px) {
    .about-achievement-list {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }
}

/* 公司介绍 */
.company-intro {
    padding: 80px 0;
    background: url('../images/about/about-banner.webp') no-repeat center center;
    background-size: cover;
}

.company-about {
    width: 100%;
    height: 520px;
    box-sizing: border-box;
    padding: 220px 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    color: #fff;

    margin-top: 60px;
}

.about-text h2 {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #fff;
}

.about-text p {
    font-size: 1.25rem;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.8;

}

.intro-bg {
    position: relative;
    height: 400px;
    background-size: cover;
    background-position: center;
    border-radius: 10px;
    overflow: hidden;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    width: 90%;
    gap: 20px;
    margin: 40px auto 0 auto;
    padding: 30px;
    background: rgba(52, 152, 219, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.stat-box {
    color: white;
    padding: 20px 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 8px;
    color: #3F92B7;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-text {
    font-size: 13px;
    line-height: 1.4;
    color: #333333;
    font-weight: 500;
}

.stat-box:hover {
    transform: translateY(-3px);
    cursor: pointer;
    /* box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4); */
}

/* 新闻中心 */
.news-center {
    padding: 10px 0;
    background-color: #f8f9fa;
}

.index-news-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
    margin-bottom: 40px;
}

.news-content {
    /* display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px; */
    margin-bottom: 40px;
}

.featured-news {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.news-image {
    height: 328px;
    background: #3F92B7;
}

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

.news-info {
    padding: 30px;
    height: 180px;
    background: #3F92B7;
    display: flex;
    color: #fff !important;
}

.featured-news .news-date {
    font-size: 14px;
    margin-bottom: 10px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-right: 40px;
}

.news-info h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.news-line {
    width: 100%;
    height: 2px;
    background: #fff;
    margin: 10px 0;
}

.news-info p {
    line-height: 1.6;
    font-size: 12px;
}

.news-list {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 20px;
    justify-content: space-between;
}

.news-item {
    background: white;
    height: 156px;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-bottom: 3px solid transparent;
    transition: border-color 0.3s ease;
    cursor: pointer;
}

.news-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: #3F92B7;
}

.news-item p {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
    display: -webkit-box;
    /* 必须，创建伸缩盒子 */
    -webkit-box-orient: vertical;
    /* 必须，定义盒子方向为垂直 */
    -webkit-line-clamp: 2;
    /* 显示几行 */
    overflow: hidden;
    /* 超出隐藏 */
    text-overflow: ellipsis;
    /* 显示省略号 */
}

.news-more {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.news-item .news-date {
    color: #999999;
}

.news-info-content {
    width: 0;
    flex: 1;
}

.news-info-content .news-title {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 500;
    font-size: 20px;
    color: #FFFFFF;
}

.news-info-content .news-desc {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 400;
    font-size: 12px;
    color: #FFFFFF;
}

.more {
    color: #C9C9C9;
    display: flex;
    align-items: center;
    gap: 5px;
}

.news-item:hover {
    border-bottom: 3px solid #3F92B7;
}

.news-item:hover .more {
    color: #3F92B7 !important;
}

.news-more-btn {
    display: block;
    width: 180px;
    height: 40px;
    text-align: center;
    font-size: 14px;
    color: #3F92B7;
    text-decoration: none;
    /* background: #3F92B7; */
    color: #333333;
    line-height: 40px;
    border-radius: 2px;
    margin: 50px auto;
    border: 1px solid #D9D9D9;
}

/* .news-item .news-date {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 12px;
    color: #999;
} */



.transport-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    /* gap: 30px; */
}

.transport-item {
    position: relative;
    height: auto;
    aspect-ratio: 640/500;
}

.transport-image {
    width: 100%;
    height: 100%;
    position: relative;

}

.transport-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.way-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px;
    background: rgba(63, 146, 183, 0.2);

    /* width: 100vw; */
    display: flex;
    flex-direction: column;
    align-items: center;
}

.way-content .way-title {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: bold;
    font-size: 36px;
    color: #FFFFFF;
}

.way-content .way-desc {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-size: 20px;
    color: #FFFFFF;
}

/* 合作伙伴 */
.partners {


    margin: 25px;
}

.partners-grid {
    width: 100%;
    display: flex;
    gap: 32px;
    margin: 50px auto;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 20px 0;
    white-space: nowrap;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* 第二行合作伙伴从右边开始显示 */
.partners-grid:nth-of-type(2) {
    justify-content: center;
    direction: rtl;
}

.partners-grid:nth-of-type(2) .partner-logo {
    direction: ltr;
}



.partner-logo {
    background: white;
    height: 120px;
    width: 200px;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    color: #2c3e50;
    line-height: 120px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 200px;
    min-width: 200px;
    max-width: 200px;
    flex-shrink: 0;
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: filter 0.3s ease;
}



.partner-logo:hover {
    transform: translateY(-3px);
    cursor: pointer;
}

/* 浮动侧边栏 */
.floating-sidebar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.sidebar-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: #3498db;
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.sidebar-btn:hover {
    background: #2980b9;
    transform: scale(1.1);
}

/* 页脚 */
.footer {
    background-color: #2385B1;
    color: #fff;
    padding: 50px 0 20px;
}

.footer-content {
    margin-top: 30px;
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
}

.footer-title {
    font-size: #ffffff;
    font-size: 28px;
}

.footer-content :nth-child(1) {
    padding-left: 0;
    border-left: none;
}

.footer-section {
    padding-left: 30px;
    border-left: 1px solid #D9D9D9;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #fff;
    font-size: 14px;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 14px;
}

.footer-links a:hover {
    color: #3498db;
}

.email-subscription {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.email-input {
    width: 280px;
    padding: 5px 10px !important;
    border: 1px solid #34495e;
    border-radius: 15px;
    background: #fff;
    color: white;
    font-size: 14px;
    outline: none;
    color: #333;
}

.footer-btn {
    border: 1px solid #fff;
    color: #fff;
    width: 100px;
    height: 24px;
    font-size: 14px;
    padding: 0 10px;
    border-radius: 15px;
    line-height: 24px;
    background: transparent;
    cursor: pointer;
    white-space: nowrap;
}

.email-input::placeholder {
    color: #bdc3c7;
}

.subscribe-btn {
    background: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.subscribe-btn:hover {
    background: #2980b9;
}

.subscription-note {
    font-size: 12px;
    color: #bdc3c7;
    line-height: 1.4;
}

.contact-info p {
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.4);
    color: #bdc3c7;
    font-size: 14px;
    line-height: 1.6;
}

/* 中文内容特殊样式优化 */
.footer-bottom p {
    margin-bottom: 5px;
    font-size: 14px;
    line-height: 1.6;
}

/* 针对中文内容的字体和字号优化 */
.footer-bottom p:contains("ICP") {
    font-size: 16px;
    font-weight: 500;
}

/* 中文地址信息优化 */
.footer-bottom p:first-child {
    font-size: 15px;
    margin-bottom: 8px;
}

/* 针对包含中文的文本进行特殊优化 */
.footer-bottom p {
    margin-bottom: 5px;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

/* 中文ICP备案信息样式 */
.footer-bottom p:last-child {
    font-size: 15px;
    font-weight: 500;
    color: #95a5a6;
    margin-top: 10px;
}

/* 页脚中文内容整体优化 */
.footer-section h4 {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
}

/* 中文描述文字优化 */
.footer-section p {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    font-size: 14px;
}

/* 中文输入框占位符优化 */
.email-input::placeholder {
    color: #bdc3c7;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
}

/* 中文按钮文字优化 */
.footer-btn {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 500;
}

/* 中文链接文字优化 */
.footer-links a {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 400;
}

/* 页脚标题中文优化 */
.footer-title {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* 中文联系信息优化 */
.contact-info p {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    font-size: 14px;
}

/* 中文输入框样式优化 */
.email-input {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    padding: 8px 10px !important;
    line-height: 1.5;
}

/* 全局中文内容字体优化 */
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 中文文字渲染优化 */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 中文段落文字优化 */
p {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    word-spacing: 0.1em;
    letter-spacing: 0.02em;
}

/* 中文标题优化 */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.4;
}

/* 产品详情页面样式 */
.product-detail {
    padding: 40px 0;
    background-color: #f8f9fa;
    min-height: 80vh;
}

.breadcrumb {
    margin-bottom: 30px;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #333333;
    text-decoration: none;
}


.product-detail-content {
    display: flex;
    gap: 40px;
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.product-detail-image {
    flex: 0 0 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-detail-info {
    flex: 1;
}

.product-detail-info h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 30px;
    border-bottom: 3px solid #3F92B7;
    padding-bottom: 10px;
}

.product-specs,
/* .product-description, */
.product-application,
.product-contact {
    margin-bottom: 30px;
}

.product-specs h3,
.product-description h3,
.product-application h3,
.product-contact h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.product-specs ul {
    list-style: none;
    padding: 0;
}

.product-specs li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    color: #666;
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-description p,
.product-application p {
    line-height: 1.8;
    color: #666;
    font-size: 16px;
}

.product-contact p {
    margin-bottom: 10px;
    color: #666;
}

.product-contact strong {
    color: #2c3e50;
}

/* 联系页面样式 */
.contact-page {
    display: flex;
    margin: 40px 0;
    height: fit-content;
    color: #fff;
    align-items: stretch;
    /* 确保子元素高度一致 */
}

.contact-sidebar {
    flex: 1;
    background-color: #3F92B7;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100%;
    /* 确保占满父容器高度 */
}

.contact-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 10px;
}

.contact-line {
    width: 188px;
    height: 2px;
    background-color: #fff;
    margin-bottom: 30px;
}

.contact-card {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-2px);
    cursor: pointer;
}

.contact-card:last-child {
    margin-bottom: 50px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-right: 15px;
    flex-shrink: 0;
}

.contact-details h4 {
    margin: 0 0 5px 0;
    font-size: 16px;
    font-weight: 600;
}

.contact-details p {
    margin: 0;
    font-size: 12px;
    overflow: hidden;
}

.contact-form-section {
    flex: 1.75;
    background: white;
    padding: 20px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    min-height: 100%;
    /* 确保占满父容器高度 */
}

.contact-time {
    font-size: 12px;
    line-height: 1;
}

.form-intro {
    margin-bottom: 30px;
}

.form-intro p {
    color: #666;
    font-size: 16px;
    margin: 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 10px 20px;
}

input::placeholder {
    font-size: 12px;
}

textarea::placeholder {
    font-size: 12px;


}

.form-group {
    display: flex;
    gap: 6px 10px;

}

/* 单项占满一行 */
.form-group:has(input:only-child),
.form-group:has(textarea:only-child) {
    flex-direction: column;
    gap: 0;
}

/* 两项在同一行，间距10px */
.form-group:has(input:nth-child(2):last-child) {
    flex-direction: row;
    gap: 10px;
}

.form-group input,
.form-group textarea {
    padding: 6px 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 16px;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    outline: none;
    box-sizing: border-box;
}

/* 单项输入框占满整行 */
.form-group:has(input:only-child) input,
.form-group:has(textarea:only-child) textarea {
    width: 100%;
}

/* 两项输入框平分空间 */
.form-group:has(input:nth-child(2):last-child) input {
    flex: 1;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    width: 100%;
    box-sizing: border-box;
}

.submit-btn {
    background-color: #3F92B7;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;

    width: 200px;
    margin-top: 20px;
}

.submit-btn:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
}

.submit-btn:active {
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-title {
        font-size: 22px;
    }


    .contact-page {
        flex-direction: column;
        gap: 20px;
    }

    .contact-sidebar {
        flex: none;
        width: 100%;
    }

    .contact-form-section {
        padding: 20px;
    }

    .contact-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-detail-content {
        flex-direction: column;
        padding: 20px;
    }

    .product-detail-image {
        flex: none;
        margin-bottom: 20px;
    }

    .product-detail-info h1 {
        font-size: 2rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        right: -50%;
        top: 0;
        height: 100vh;
        flex-direction: column;
        background-color: #ffffff;
        width: 50%;
        text-align: center;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        padding: 0 0 20px 0;
        margin-top: 80px;
        z-index: 1001;
        overflow-y: auto;

        /* position: fixed;
        left: -100%;
        top: 70px;
        height: auto;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 20px 0; */
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
        width: 100%;
        padding: 0;
    }

    .nav-list li {
        background-color: transparent;
        border-radius: 0;
        margin: 0;
        transition: all 0.3s ease;
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
        height: auto;
        min-height: 50px;
    }

    .nav-list li .nav-link {
        height: auto;
        line-height: 1.5;
        padding: 15px 20px !important;
        display: block;
        width: 100%;
        text-align: left;
        font-size: 16px;
        color: #333;
    }

    /* .nav-list li {
        background-color: #f8f9fa;
        border-radius: 0;
        margin: 0;
        transition: all 0.3s ease;
        width: 100%;
        border-bottom: 1px solid #e9ecef;
        height: 30px;
    }

    .nav-list li .nav-link{
        height: 30px;
        line-height: 30px;
        padding: 0 !important;
    } */

    .nav-list li:last-child {
        border-bottom: none;
    }

    .nav-list li:hover {
        background-color: #e9ecef;
        transform: none;
        box-shadow: none;
    }

    .nav-list li.active {
        background-color: #3F92B7;
    }

    .nav-list li.active .nav-link {
        color: white;
    }

    .nav-link {
        display: block;
        padding: 12px 20px;
        color: #333;
        text-decoration: none;
        font-weight: 500;
        transition: all 0.3s ease;
        border-radius: 0;
        width: 100%;
        text-align: center;
    }

    .nav-link:hover {
        color: #3F92B7;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

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

    .features-grid {
        grid-template-columns: 1fr;
    }

    .intro-stats {
        width: 100%;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 20px;
        background: rgba(255, 255, 255, 0.4);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-text {
        font-size: 12px;
    }
}

.partners-container {
    width: 90%;
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin: 0 auto;
}

.scroll-row {
    display: flex;
    overflow: hidden;
    position: relative;
    cursor: grab;
    touch-action: pan-y;
    user-select: none;
}

.scroll-row.row-2 {
    transform: translateX(50px);
}

.logo-track {
    display: flex;
    flex-wrap: nowrap;
}

.logo {
    flex: 1;
    width: 240px;
    height: 120px;
    flex-shrink: 0;
    margin: 0 10px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #ffffff;
}

.email-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.email-container .icon-send {
    width: 35px;
    height: 35px;
    padding: 5px;
    border-radius: 50%;
    background-color: #ffffff;
    cursor: pointer;
}