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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

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

/* 头部样式 */
/* 所有页面导航栏固定顶部，滚动时不隐藏 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    margin-bottom: 0;
}

/* 首页透明导航栏 - 固定顶部，滚动时不隐藏 */
.header-transparent {
    background-color: transparent !important;
    box-shadow: none !important;
    position: fixed !important;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* 首页导航：滚动超过 banner 高度时显示白色背景 */
.header-transparent.header-scrolled {
    background-color: #fff !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12) !important;
    backdrop-filter: saturate(180%) blur(10px);
    -webkit-backdrop-filter: saturate(180%) blur(10px);
}

/* 所有页面透明导航：白字、叠在 banner 上，与首页一致 */
.header-transparent .nav ul {
    /* border-bottom: 1px solid #fff; */
    padding-bottom: 5px;
}

.header-transparent .nav ul li a {
    color: #fff !important;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: color 0.3s ease;
}

.header-transparent .nav ul li a:hover {
    color: #3498db !important;
    text-shadow: none;
}

.header-transparent .nav-dropdown li a {
    color: #fff !important;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.header-transparent .nav-dropdown li a:hover {
    color: #3498db !important;
    text-shadow: none;
}

.header-transparent .mobile-menu-btn span {
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* PC端滚动后导航文字为黑色（白底） */
.header-transparent.header-scrolled .nav ul li a,
.header-transparent.header-scrolled .nav-dropdown li a {
    color: #333 !important;
    text-shadow: none;
}

.header-transparent.header-scrolled .mobile-menu-btn span {
    background-color: #333;
    box-shadow: none;
}

/* 首页body样式 */
.homepage {
    overflow-x: hidden;
}

.homepage .hero {
    margin-top: 0;
    width: 100vw;
    max-width: none;
    margin-left: calc(50% - 50vw);
}

.logo h1 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: bold;
}

.logo img {
    height: 70px;
    width: auto;
    display: block;
}

.header .logo img {
    transform: scale(2.3333);
    transform-origin: left center;
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

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

.nav ul li a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-has-dropdown {
    position: relative;
}

.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    min-width: 160px;
    background-color: transparent;
    box-shadow: none;
    padding: 0;
    display: none !important;
    gap: 16px;
    z-index: 1001;
    justify-content: center;
    transform: translateX(-50%);
    width: max-content;
}

.nav-dropdown li {
    margin: 0;
}

.nav-dropdown li a {
    display: block;
    padding: 6px 8px;
    font-size: 14px;
    white-space: nowrap;
    text-align: center;
}

.nav-has-dropdown:hover > .nav-dropdown,
.nav-dropdown:hover {
    display: flex !important;
}

.nav-dropdown li a:hover {
    color: #f39c12;
}

/* 轮播图样式 - 英雄区/视频区 */
.hero {
    position: relative;
    width: 100vw;
    max-width: none;
    margin-left: calc(50% - 50vw);
    height: 700px;
    overflow: hidden;
    padding: 0;
}

/* 首页全屏轮播 */
.homepage .hero {
    height: 100vh;
    min-height: 600px;
}

.video-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero .video-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: block;
}

/* 轮播图容器 */
.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

/* 轮播图项 */
.slider-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    overflow: hidden;
    background-color: #1a1a1a; /* 添加深色背景色减少空白感 */
}

/* 轮播图图片 */
.slider-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: -1;
}

/* 当前活动的轮播图项 */
.slider-item.active {
    opacity: 1;
    z-index: 1;
}

/* 轮播控制按钮 */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    font-size: 2rem;
    padding: 10px 20px;
    cursor: pointer;
    z-index: 10;
    transition: background-color 0.3s;
}

.slider-btn:hover {
    background-color: rgba(0, 0, 0, 0.7);
}

.slider-btn.prev {
    left: 20px;
}

.slider-btn.next {
    right: 20px;
}

/* 轮播指示器 */
.slider-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s;
}

.indicator.active {
    background-color: white;
}

/* 轮播图动画 */
@keyframes fade {
    from { opacity: 0.4; }
    to { opacity: 1; }
}

.slider-item.active {
    animation: fade 1s;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    text-align: center;
    color: #fff;
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-charge-desc {
    white-space: nowrap;
}

@media (max-width: 768px) {
    .hero-charge-desc {
        white-space: normal;
    }
}

.btn {
    display: inline-block;
    background-color: #00bfff;
    color: #fff;
    padding: 10px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0099cc;
}

/* 通用 section 样式 */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 28px;
}



/* 核心业务区域 */
.core-business {
    background-color: #fff;
    padding: 60px 0;
}

.core-business .container {
    width: 100%;
    max-width: 100%;
    padding: 0 0 60px 0;
}

.core-business .section-main-title {
    padding: 0 20px;
    margin-bottom: 40px;
}

/* 主标题样式 */
.section-main-title {
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 40px;
}

/* 副标题样式 */
.section-sub-title {
    text-align: center;
    font-size: 18px;
    color: #999;
    margin-bottom: 40px;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.business-item {
    margin-left: 20px;
    margin-right: 20px;
    display: flex;
    flex-direction: column;
    text-align: left;
    border-left: none;
    border-right: 1px solid #eee;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    border-radius: 0;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    height: 100%;
}

.business-item:first-child {
    border-left: 1px solid #eee;
}

.business-item:last-child {
    border-right: 1px solid #eee;
}

/* 响应式：移动端显示为2列或1列 */
@media (max-width: 992px) {
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .business-item:nth-child(2n) {
        border-right: 1px solid #eee;
    }
    
    .business-item:nth-child(2n+1) {
        border-left: 1px solid #eee;
    }
    
    .news-content .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .business-grid {
        grid-template-columns: 1fr;
    }
    
    .business-item {
        border-left: 1px solid #eee;
        border-right: 1px solid #eee;
    }
    
    .news-content .business-grid {
        grid-template-columns: 1fr;
    }
}

.business-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 业务卡片链接样式 */
.business-link {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    width: 100%;
    height: 100%;
}

.business-link:hover {
    text-decoration: none;
    color: inherit;
}

.business-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.business-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.business-content {
    padding: 20px;
}

.business-content h3 {
    color: #2c3e50;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: bold;
}

/* 解决方案图片覆盖样式 */
.business-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.business-item:hover .business-overlay {
    opacity: 1;
}

.business-content-overlay {
    text-align: center;
    color: #fff;
    padding: 20px;
    max-width: 90%;
}

.business-title-overlay {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    margin: 0;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
    z-index: 2;
}

.business-content-overlay p {
    display: none; /* 隐藏覆盖层中的详细内容 */
}

.business-content {
    padding: 20px;
    position: relative;
    height: 190px; /* 固定高度确保完全一致 */
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    overflow: hidden; /* 隐藏溢出的内容 */
}

.business-content h3 {
    color: #2c3e50;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: bold;
}

.business-content p {
    color: #555;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px; /* 减少底部边距 */
    flex-grow: 1; /* 让文本占据剩余空间 */
    overflow: hidden;
    display: -webkit-box;
    /* -webkit-line-clamp: 4; 限制最多4行 */
    -webkit-box-orient: vertical;
}

.business-content .business-date {
    color: #999;
    font-size: 12px;
    margin-top: auto; /* 将时间推到底部 */
    padding-top: 10px;
    border-top: 1px solid #eee; /* 添加顶部边框作为分隔 */
    text-align: right; /* 确保右对齐 */
    width: 100%; /* 确保占满容器宽度 */
}

/* 新闻部分：日期放在卡片右下角 */
.news-content .business-item {
    position: relative;
}

.news-content .business-date {
    position: absolute;
    bottom: 10px;
    right: 10px;
    color: #999;
    font-size: 14px;
    margin: 0;
    padding: 0;
    border: none;
    text-align: right;
}

.news-content .business-content {
    padding: 20px 20px 36px 20px;
    height: auto;
    min-height: auto;
}

.news-content .business-content h3 {
    color: #2c3e50;
    font-size: 16px;
    font-weight: bold;
    margin: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.business-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative; /* 添加相对定位以支持覆盖层 */
}

/* 行业动态 */
.news {
    background-color: #fff;
    padding: 60px 0;
}

.news .container {
    width: 100%;
    max-width: 100%;
    padding: 0 0 60px 0;
}

.news .news-header {
    padding: 0 20px;
}

.news-content {
    width: 100%;
}

/* 新闻部分使用和核心业务相同的样式 */
.news-content .business-grid {
    grid-template-columns: repeat(3, 1fr);
}

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

.news-more-btn {
    display: inline-block;
    color: #0066cc;
    font-size: 16px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-more-btn:hover {
    color: #004499;
}

/* 核心业务卡片（solution.html） */
.solution-main {
    background-color: #f5f5f5;
    padding: 80px 0 60px;
}

.solution-card-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.solution-card {
    position: relative;
    display: block;
    padding: 30px 24px 36px;
    background-color: #e5e5e5;
    color: #333;
    text-decoration: none;
    overflow: hidden;
}

.solution-card.active {
    background-color: #234b9b;
    color: #ffffff;
}

.solution-card-title-cn {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 6px;
}

.solution-card.active .solution-card-title-cn {
    color: #ffffff;
}

.solution-card-title-en {
    font-size: 14px;
    margin-bottom: 12px;
    opacity: 0.9;
}

.solution-card-desc-list div {
    font-size: 13px;
    line-height: 1.6;
}

.solution-card-desc-list {
    font-size: 12px;
    line-height: 1.6;
    margin-bottom: 40px;
}

.solution-card.active .solution-card-title-en,
.solution-card.active .solution-card-desc-list div {
    color: #ffffff;
}

.solution-card-icon {
    position: absolute;
    left: 18px;
    bottom: 14px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid currentColor;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #dad8d8;
}

.solution-card-index {
    position: absolute;
    right: 18px;
    bottom: 14px;
    font-size: 40px;
    font-weight: 700;
    opacity: 0.2;
}

.solution-card.active .solution-card-index {
    opacity: 0.4;
}

@media (max-width: 768px) {
    .solution-card {
        padding: 24px 18px 32px;
    }

    .solution-card-index {
        font-size: 32px;
    }
}

.news-header {
    margin-bottom: 40px;
    text-align: center;
}

.news-title {
    font-size: 28px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: left;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    display: inline-block;
}

.news-list {
    width: 100%;
    margin: 0;
    padding: 0;
}

.news-item {
    display: flex;
    align-items: flex-start;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
    margin-left: 0;
}

.news-item:last-child {
    border-bottom: none;
}

.news-link {
    display: flex;
    align-items: flex-start;
    text-decoration: none;
    color: inherit;
    width: 100%;
}

.main-news .news-image {
    width: 200px;
    height: 120px;
    overflow: hidden;
    margin-right: 20px;
    margin-left: 0;
    border-radius: 5px;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

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

.news-info h3 {
    color: #2c3e50;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.news-info h3:hover {
    color: #3498db;
}

.news-date {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 0;
}

.read-more {
    display: inline-block;
    padding: 10px 20px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.read-more:hover {
    background-color: #2980b9;
}

/* 企业特色 */
.features {
    background-color: #f9f9f9;
}

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

.feature-item {
    background-color: #fff;
    padding: 40px 20px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.feature-item h3 {
    color: #2c3e50;
    font-size: 22px;
}

/* 企业荣誉与合作展示 */
.about-honor {
    padding: 40px 0 20px;
}

.honor-card {
    display: flex;
    align-items: center;
    gap: 40px;
    /* border-radius: 8px; */
    overflow: hidden;
    /* background-color: #fff; */
    /* box-shadow: 0 6px 18px rgba(0,0,0,0.08); */
    padding: 20px 24px;
}

.honor-image {
    flex: 0 0 55%;
}

.honor-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 6px;
}

.honor-content {
    flex: 1;
}

.honor-content h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 600;
}

.honor-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
}

.about-cooperation {
    background-color: #fff;
    padding: 30px 0 50px;
}

.cooperation-title {
    text-align: center;
    color: #333;
    font-size: 20px;
    margin-bottom: 20px;
    font-weight: 600;
}

.cooperation-logos {
    background: #fff;
    padding: 20px 30px 30px;
}

.cooperation-logos img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 992px) {
    .honor-card {
        flex-direction: column;
        gap: 20px;
    }
    
    .honor-image {
        flex: none;
        width: 100%;
    }
}

.image-lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.image-lightbox-overlay.active {
    display: flex;
}

.image-lightbox-overlay img {
    width: 90vw;
    height: 85vh;
    object-fit: contain;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    background: transparent;
}

@media (max-width: 768px) {
    .about-images-grid {
        grid-template-columns: 1fr;
    }
}

/* 统一页面横幅样式 - 与首页 Index 的 hero 高度一致（强制统一高度，避免被后续规则覆盖） */
.banner,
.banner.banner-no-overlay {
    position: relative;
    height: 100vh !important;
    min-height: 600px !important;
    max-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    overflow: hidden;
    padding: 0;
    box-sizing: border-box;
}

.banner-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: -1;
}

.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
    z-index: 0;
}

.banner-no-overlay::after {
    background: none;
}

.banner-content {
    position: relative;
    z-index: 1;
    padding: 0 20px;
}

.banner-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.banner-content p {
    font-size: 1.5rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 关于我们页面样式 */
.about {
    background-color: #fff;
    padding: 80px 0;
}

.about-intro {
    display: flex;
    align-items: center;
    gap: 40px;
    /* margin-bottom: 60px; */
}

.about-intro-text {
    flex: 1;
}

.about-intro-text h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 25px;
    font-weight: bold;
    text-align: left;
    /* border-bottom: 2px solid #3498db; */
    padding-bottom: 10px;
}

.about-intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
    text-align: justify;
}

.about-intro-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

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

.about-intro.fullwidth-image-section .container {
    max-width: 100%;
    width: 100%;
    padding: 0;
}

.about-intro.fullwidth-image-section .about-intro-image {
    border-radius: 0;
    box-shadow: none;
}

.about-intro.fullwidth-image-section .about-intro-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 公司简介网格布局 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
    margin-bottom: 60px;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.about-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-intro {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
    }

    .about-intro-image {
        order: -1;
        width: 100%;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-image {
        order: -1;
    }
}

/* 企业愿景与使命 */
.vision {
    background-color: #f9f9f9;
    padding: 60px 0;
}

/* 企业愿景与使命 - 版式 */
.vision-mission {
    background-color: #fff;
    padding: 50px 0 40px;
}

.vision-mission-items {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 300px;
    max-width: 1100px;
    margin: 0 auto;
}

.vision-mission-item h3 {
    font-size: 18px;
    color: #333;
    font-weight: 600;
    margin-bottom: 14px;
}

.vision-mission-item p {
    font-size: 15px;
    line-height: 1.7;
    color: #666;
}

@media (max-width: 992px) {
    .vision-mission {
        padding: 40px 0 30px;
    }
    
    .vision-mission-items {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* 企业理念 */
.philosophy {
    background-color: #fff;
    padding: 80px 0;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.philosophy-item {
    background-color: #f9f9f9;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.philosophy-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: bold;
}

.philosophy-item p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
}

/* 服务优势 */
.service-advantages {
    background-color: #f9f9f9;
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-advantages .advantage-item {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.service-advantages .advantage-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: bold;
}

.service-advantages .advantage-item p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
}

/* 企业理念样式 */
.philosophy {
    background-color: #f9f9f9;
    padding: 80px 0;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.philosophy-item {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.philosophy-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.philosophy-item h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: bold;
}

.philosophy-item p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

/* 企业愿景样式 */
.vision {
    background-color: #fff;
    padding: 80px 0;
}

.vision-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.vision-content p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #555;
}

/* 服务优势样式 */
.service-advantages {
    background-color: #f9f9f9;
    padding: 80px 0;
}

.service-advantages .advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-advantages .advantage-item {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.service-advantages .advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.service-advantages .advantage-item h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: bold;
}

.service-advantages .advantage-item p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

/* 技术团队样式 */
.tech-team {
    background-color: #fff;
    padding: 80px 0;
}

.team-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.team-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 1.5rem;
    text-align: left;
}

/* 新闻列表页面样式 */
.news-list {
    background-color: #fff;
    /* padding: 80px 0; */
}

.news-list .news-items {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-card-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: 12px;
    background: #f0f2f5;
}

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

.news-card-body {
    padding-top: 10px;
}

.news-card-title {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    color: #333;
    line-height: 1.5;
    min-height: calc(1.5em * 2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-meta {
    margin-top: 8px;
    color: #999;
    font-size: 13px;
    line-height: 1.3;
}

.news-card-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.news-card-date-icon {
    width: 22px;
    height: 20px;
    /* flex: 0 0 18px; */
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100px 60px;
    /* background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23999'%3E%3Cpath d='M7 2h2v2h6V2h2v2h3v18H2V4h5V2zm13 6H4v12h16V8z'/%3E%3C/svg%3E"); */
    background-image: url("../image/new/xinwendongtai/icon.png");
}

@media (max-width: 1024px) {
    .news-list .news-items {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .news-list .news-items {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* 服务项目页面样式 */
.services {
    background-color: #fff;
    padding: 80px 0;
}

.services .services-grid {
    max-width: 1200px;
    margin: 0 auto;
}

.services .service-item h3 {
    font-size: 1.5rem;
    font-weight: bold;
}

.services .service-item p {
    font-size: 1rem;
}

/* 技术优势页面样式 */
.technology {
    background-color: #f9f9f9;
    padding: 80px 0;
}

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

.technology .tech-item h3 {
    font-size: 1.5rem;
    font-weight: bold;
}

.technology .tech-item p {
    font-size: 1rem;
}

/* 与首页 banner 一致：固定高度 + 图片铺满 */
.smart-energy-hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    padding: 0 !important;
    display: block;
}
.smart-energy-hero img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.smart-energy-intro,
.smart-energy-solar,
.smart-energy-charge {
    position: relative;
    color: #fff;
    padding: 60px 0;
    background-size: cover;
    background-position: center;
}

.zheceng::before{
    background: rgba(0, 0, 0, 0.55);
}


.smart-energy-intro::before,
.smart-energy-solar::before,
.smart-energy-charge::before {
    content: "";
    position: absolute;
    inset: 0;
    /* background: rgba(0, 0, 0, 0.55); */
}

.smart-energy-intro-plain {
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-color: #0f1f36;
    /* min-height: 760px; */
    height: 1380px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 80px 0 0;
    overflow: hidden;
    position: relative;
}

.smart-energy-intro .container,
.smart-energy-solar .container,
.smart-energy-charge .container {
    position: relative;
    z-index: 1;
    max-width: 1000px;
}

.smart-energy-intro-plain .container {
    max-width: 1400px;
}

.smart-energy-intro-content {
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.smart-energy-intro h2,
.smart-energy-solar h2,
.smart-energy-charge h2,
.smart-energy-products h2,
.smart-energy-scenes h2,
.smart-energy-architecture h2 {
    font-size: 24px;
    text-align: center;
    margin-bottom: 18px;
    font-weight: 600;
}

.smart-energy-intro-content h1 {
    font-size: 45px;
    font-weight: 700;
}

.smart-energy-intro h2 {
    text-align: left;
}

.smart-energy-intro p {
    font-size: 20px;
    line-height: 1.9;
    text-align: left;
    /* max-width: 640px; */
    margin: 0;
}

.smart-energy-solar p,
.smart-energy-charge p {
    font-size: 15px;
    line-height: 1.9;
    text-align: center;
    max-width: 860px;
    margin: 0 auto;
}

.smart-energy-products {
    padding: 50px 0;
    background: #f5f7fb;
}

.smart-energy-product-card img {
    width: 100%;
    border-radius: 12px;
    display: block;
}

.smart-energy-product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(420px, 1fr));
    gap: 0;
    margin-top: 16px;
    align-items: end;
}

.smart-energy-product-showcase {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    text-align: center;
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 0;
}

.smart-energy-product-title {
    text-align: center;
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 16px;
}

.smart-energy-product-grid-inhero {
    margin-top: 0;
    align-items: end;
}

.smart-energy-product-grid img {
    width: 100%;
    max-width: none;
    border-radius: 0;
    display: block;
    /* box-shadow: 0 10px 20px rgba(0, 0, 0, 0.25); */
    height: 600px;
    object-fit: cover;
    object-position: center bottom;
    transform: scale(1);
    transform-origin: center bottom;
}

.smart-energy-scenes {
    padding: 50px 0 60px;
    background: #fff;
}

.smart-energy-scenes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.smart-energy-scene-card {
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
    background: #fff;
}

.smart-energy-scene-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.smart-energy-scene-title {
    padding: 12px 16px;
    text-align: center;
    font-size: 15px;
    color: #2c3e50;
}

.smart-energy-architecture {
    padding: 50px 0 70px;
    background: #f5f7fb;
    text-align: center;
}

.smart-energy-architecture img {
    width: 100%;
    max-width: 900px;
    border-radius: 12px;
    display: block;
    margin: 0 auto;
}

@media (max-width: 992px) {
    .smart-energy-product-grid {
        grid-template-columns: 1fr 1fr;
    }

    .smart-energy-scenes-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .smart-energy-intro,
    .smart-energy-solar,
    .smart-energy-charge {
        padding: 45px 0;
    }

    .smart-energy-intro-plain {
        min-height: 520px;
        height: auto;
        padding: 60px 0 80px;
    }

    .smart-energy-scenes-grid {
        grid-template-columns: 1fr;
    }

    .smart-energy-product-grid {
        grid-template-columns: 1fr;
    }

    .smart-energy-product-showcase {
        position: static;
        transform: none;
        margin-top: 30px;
    }

    .smart-energy-scene-card img {
        height: auto;
    }
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
    font-size: 14px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    gap: 30px;
    margin-bottom: 20px;
    /* padding-bottom: 40px; */
    border-bottom: 1px solid #555;
    text-align: center;
}

.footer-section h2 {
    color: #0099ff;
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h2::before {
    /* content: '|'; */
    color: #0099ff;
    margin-right: 10px;
}

.company-info h3 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #fff;
}

.company-info p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: #ccc;
}

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

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #0099ff;
}

.footer-bottom {
    text-align: center;
    color: #999;
    font-size: 12px;
}

/* 统一图片尺寸样式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}


.mobile-break {
    display: none;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    z-index: 1001;
    padding: 0;
}

.mobile-menu-btn span {
        display: block;
        width: 100%;
        height: 3px;
        background-color: #0066cc;
        border-radius: 3px;
        transition: all 0.3s ease;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .mobile-menu-btn {
        display: flex;
        margin-left: auto;
    }

    .header .container {
        position: relative;
    }

    .nav {
        /* 让 .nav 容器在移动端脱离文档流，不影响 flex 布局 */
        position: static;
    }

    .nav ul {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #fff;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        padding: 0;
        flex-direction: column;
        align-items: center;
        z-index: 1000;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out, padding 0.3s ease;
    }
        
        .nav ul.active {
            max-height: 500px; /* 足够显示所有菜单项的高度 */
            padding: 20px 0;
            display: flex; /* Ensure display is flex when active */
        }
    
    .nav ul li {
        margin: 15px 0;
        width: 100%;
        text-align: center;
    }

    /* 移动端下拉展开时白底，链接需深色才可见 */
    .nav ul li a,
    .nav .nav-dropdown li a {
        color: #333 !important;
        text-shadow: none;
    }
    .nav ul li a:hover,
    .nav .nav-dropdown li a:hover {
        color: #0066cc !important;
    }

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

    .company-info {
        grid-column: 1 / -1;
    }
    
    .hero-content h2,
    .banner-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p,
    .banner-content p {
        font-size: 1.2rem;
    }
    
    .feature-grid,
    .philosophy-grid,
    .service-advantages .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .banner {
        height: 100vh;
        min-height: 400px;
    }
    
    .hero {
        height: 400px;
    }
    
    .about,
    .philosophy,
    .vision,
    .service-advantages,
    .tech-team,
    .news-list,
    .services,
    .technology {
        padding: 40px 0;
    }
    
    .news-list .news-item {
        flex-direction: column;
    }
    
    .news-list .news-date {
        margin-right: 0;
        margin-bottom: 15px;
        width: 100%;
    }
    
    .services-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    /* News List Mobile Optimization */
    .news-link {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .news-link .news-image {
        width: 100%;
        height: auto;
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .news-link .news-info {
        width: 100%;
    }
    
    .news-info h3 {
        font-size: 16px;
    }
    
    /* News Detail Mobile Optimization */
    .news-content img {
        max-width: 100% !important;
        height: auto !important;
    }
    
    .news-detail .news-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .pagination ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .news-content p {
        font-size: 16px;
        line-height: 1.8;
    }

    /* Hide slider buttons on mobile */
    .slider-btn {
        display: none !important;
    }
}/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 头部样式 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    margin-bottom: 0;
    padding: 15px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 24px;
    color: #0066cc;
}

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

.nav ul li {
    margin-left: 20px;
}

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

.nav ul li a:hover {
    color: #0066cc;
}

/* 轮播图样式 - 与首页 hero 高度一致 */
.banner {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/banner.jpg') center/cover no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    margin-top: 0;
    padding: 0;
}

.banner-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto;
}

/* 通用section样式 */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 28px;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
}

/* 优势部分样式 */
.advantages {
    background-color: #fff;
}

.advantage-item {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.8;
}

/* 技术部分样式 */
.technology {
    background-color: #f9f9f9;
}

.tech-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.8;
}

/* 新闻部分样式 */
.news {
    background-color: #fff;
}

.news-item {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.8;
}

.read-more {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #0066cc;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.read-more:hover {
    background-color: #0052a3;
}

/* 特色部分样式 */
.features {
    background-color: #f9f9f9;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
    font-size: 20px;
    color: #333;
}

/* 通用工具类 */
.text-center {
    text-align: center;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 40px 0;
    padding: 0;
}

.pagination ul {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.pagination li {
    margin: 0 5px;
}

.pagination a {
    display: inline-block;
    padding: 8px 15px;
    text-decoration: none;
    color: #333;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background-color: #f5f5f5;
    border-color: #3498db;
    color: #3498db;
}

.pagination li.active a {
    background-color: #3498db;
    color: #fff;
    border-color: #3498db;
}

.pagination li:last-child a {
    background-color: #f9f9f9;
    border-color: #ddd;
}

.pagination li:last-child a:hover {
    background-color: #e9e9e9;
    border-color: #3498db;
    color: #3498db;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }
    
    .nav ul {
        margin-top: 15px;
    }
    
    .nav ul li {
        margin: 0 10px;
    }
    
    .banner-content h2 {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 - 固定顶部 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.logo h1 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: bold;
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

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

.nav ul li a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* 轮播图样式 - 与首页 hero 高度一致 */
.banner {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/banner.jpg') center/cover no-repeat;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    margin-top: 0;
    padding: 0;
}

.banner-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* 通用 section 样式 */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 28px;
}

/* 优势部分 */
.advantages {
    background-color: #fff;
}

.advantage-item {
    text-align: center;
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* 技术工艺 */
.technology {
    background-color: #f9f9f9;
}

.tech-content {
    text-align: center;
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* 新闻部分 */
.news {
    background-color: #fff;
    padding: 40px 0;
}

/* 新闻详情页样式 */

/* 内容区域样式 */
.content {
    background-color: #f5f5f5 !important;
    padding: 60px 0 !important;
}

/* 容器样式 */
.content .container {
    max-width: 1100px !important;
    margin: 0 auto !important;
    background-color: #fff !important;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08) !important;
    border-radius: 8px !important;
    padding: 40px 80px !important;
}

/* 页面标题样式 */
.page-header {
    text-align: center !important;
    margin-bottom: 35px !important;
    padding-bottom: 20px !important;
    border-bottom: 1px solid #e8e8e8 !important;
}

.page-header h1 {
    color: #333 !important;
    font-size: 30px !important;
    font-weight: bold !important;
    margin: 0 0 15px !important;
    line-height: 1.4 !important;
}

/* 新闻详情容器 */
.news-detail {
    max-width: 800px !important;
    margin: 0 auto !important;
}

/* 新闻元数据 */
.news-detail .news-meta {
    text-align: center !important;
    color: #999 !important;
    font-size: 14px !important;
    margin-bottom: 35px !important;
    padding: 15px 0 !important;
    border-bottom: 1px solid #f5f5f5 !important;
}

.news-detail .news-meta span {
    margin: 0 15px !important;
}

/* 新闻内容 */
.news-detail .news-content {
    font-size: 16px !important;
    line-height: 2.1 !important;
    color: #333 !important;
    font-family: 'Microsoft YaHei', Arial, sans-serif !important;
}

/* 段落样式 */
.news-detail .news-content p {
    margin-bottom: 20px !important;
    text-indent: 2em !important;
    text-align: justify !important;
}

/* 小标题样式 */
.news-detail .news-content h3 {
    font-size: 18px !important;
    font-weight: bold !important;
    color: #333 !important;
    margin: 35px 0 20px !important;
    padding-left: 10px !important;
    border-left: 3px solid #3498db !important;
}

/* 新闻图片样式 */
.news-detail .news-image {
    width: 100% !important;
    max-width: 700px !important;
    margin: 30px auto !important;
    text-align: center !important;
}

.news-detail .news-image img {
    width: 100% !important;
    height: auto !important;
    border-radius: 4px !important;
}

/* 新闻导航样式 */
.news-detail .news-navigation {
    margin-top: 45px !important;
    padding-top: 25px !important;
    border-top: 1px solid #e8e8e8 !important;
    display: flex !important;
    justify-content: space-between !important;
    flex-wrap: wrap !important;
    gap: 20px !important;
}

.news-detail .news-navigation a {
    color: #666 !important;
    text-decoration: none !important;
    transition: color 0.3s ease !important;
    font-size: 14px !important;
}

.news-detail .news-navigation a:hover {
    color: #3498db !important;
}

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

.news-title {
    color: #0066cc;
    font-size: 24px;
    font-weight: bold;
    position: relative;
    padding-bottom: 10px;
}

.news-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 2px;
    /* background-color: #0066cc; */
}

.news-content {
    display: block;
    margin-bottom: 40px;
    width: 100%;
}

.main-news {
    width: 100%;
    padding: 0;
    max-width: 100%;
}

.main-news-item {
    display: flex;
    gap: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
    margin-bottom: 20px;
    margin-left: 0;
    width: 100%;
    max-width: 100%;
}

.main-news-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.news-list .news-image,
.main-news-item .news-image {
    width: 200px;
    height: 120px;
    overflow: hidden;
    margin-left: 0;
    margin-right: 20px;
    border-radius: 5px;
    flex-shrink: 0;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    padding-right: 0;
    display: block;
}

.news-info h3 {
    color: #333;
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: bold;
}

.news-date {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

.news-sidebar {
    border-left: 1px solid #eee;
    padding-left: 20px;
}

.video-section {
    width: 100%;
    padding: 10px;
    border: 1px solid #eee;
    border-radius: 5px;
}

.video-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
    padding-left: 25px;
    background: url('../images/video-icon.png') left center no-repeat;
    background-size: 20px;
}

.video-count {
    color: #ff0000;
    font-size: 14px;
    margin-bottom: 20px;
    text-align: center;
}

.video-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.video-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 120px;
    overflow: hidden;
    border-radius: 3px;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-thumbnail:hover .video-overlay {
    opacity: 1;
}

.play-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.8);
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
    background-color: #fff;
}

.video-caption {
    font-size: 12px;
    color: #666;
    text-align: center;
}

/* HTML5视频播放器样式 */
.video-player {
    width: 100%;
    height: auto;
    overflow: hidden;
    border-radius: 3px;
    background-color: #000;
}

.video-player video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 3px;
}

/* 确保视频控件样式与页面风格一致 */
.video-player video::-webkit-media-controls {
    background-color: rgba(0, 0, 0, 0.5);
}

.video-player video::-webkit-media-controls-play-button {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
}

.video-player video::-webkit-media-controls-play-button:hover {
    background-color: rgba(255, 255, 255, 1);
}

.news-list {
    /* margin-top: 15px; */
    padding: 60px 0;
}

.news-columns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.news-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    text-decoration: none;
    color: #333;
    transition: color 0.3s ease;
}

.news-link:hover {
    color: #0066cc;
}

.news-link-title {
    font-size: 14px;
    flex: 1;
}

.news-link-date {
    font-size: 12px;
    color: #999;
    margin-left: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .news-content {
        grid-template-columns: 1fr;
    }
    
    .main-news-item {
        flex-direction: column;
    }
    
    .news-image {
        width: 100%;
        height: 200px;
    }
    
    .news-sidebar {
        border-left: none;
        border-top: 1px solid #eee;
        padding-left: 0;
        padding-top: 20px;
    }
    
    .news-columns {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 特色部分 */
.features {
    background-color: #f9f9f9;
}

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

.feature-item {
    background-color: #fff;
    padding: 40px 20px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.feature-item h3 {
    color: #2c3e50;
    font-size: 22px;
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav ul {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav ul li {
        margin: 10px 0;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* 服务项目页面 - Modern Card Design */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    padding: 18px 0 48px;
    max-width: 1100px;
    margin: 0 auto;
}

.service-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.service-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: none;
    transition: none;
    position: relative;
    /* border: 1px solid #eef2f6; */
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: none;
    box-shadow: none;
}

.service-img-wrapper {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    position: relative;
    background-color: transparent;
}

.service-img-wrapper img {
    width: 100% !important;
    height: 100% !important;
    min-width: 100%;
    min-height: 100%;
    object-fit: cover !important;
    object-position: center;
    transition: transform 0.35s ease;
    display: block; /* Removes bottom gap */
}

.service-card:hover .service-img-wrapper img {
    transform: none;
}

.service-img-wrapper::after {
    display: none;
}

.service-info {
    padding: 12px 30px 14px;
    background: #fff;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
}

.service-info::before {
    display: none;
}

.service-title,
.service-info h3 {
    margin: 0 0 8px;
    font-size: 20px;
    color: #1f2d3d;
    font-weight: 700;
    line-height: 1.35;
}

.service-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.service-meta-row {
    display: flex;
    align-items: center;
    /* gap: 8px; */
    font-size: 14px;
    line-height: 1.5;
    color: #2c3e50;
}

.service-meta-icon-img {
    width: 60px;
    /* height: 18px;
    flex: 0 0 18px;
    display: inline-block;
    object-fit: contain; */
    margin-left: -20px;
}

.service-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background-color: #f0f7ff;
    color: #3498db;
    font-size: 13px;
    border-radius: 6px;
    font-weight: 500;
    align-self: flex-start;
    transition: all 0.3s ease;
}

.service-card:hover .service-tag {
    background-color: #3498db;
    color: #fff;
}

/* Responsive adjustment */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
        padding: 16px 0 32px;
        gap: 14px;
    }
    
    .service-card {
        box-shadow: none;
    }
}

/* 解决方案详情页图文布局 */
.solution-detail {
    background-color: #fff;
}

.solution-list {
    max-width: 1200px;
    margin: 40px auto 0;
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.solution-item {
    display: flex;
    align-items: center;
    gap: 60px;
}

.solution-item.reverse {
    flex-direction: row-reverse;
}

.solution-image {
    flex: 1.2;
}

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

.solution-content {
    flex: 1;
}

.solution-content h3 {
    font-size: 28px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 20px;
}

.solution-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

@media (max-width: 768px) {
    .solution-list {
        gap: 40px;
    }

    .solution-item,
    .solution-item.reverse {
        flex-direction: column;
        text-align: left;
    }

    .solution-image {
        width: 100%;
    }
}

/* 技术优势页面 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.tech-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.tech-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.tech-item p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

.tech-item ul {
    list-style: none;
}

.tech-item ul li {
    color: #555;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.tech-item ul li:before {
    content: "•";
    color: #3498db;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 新闻页面 */
.news-items {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-item {
    display: flex;
    align-items: flex-start;
    padding: 15px 0;
    border-bottom: 1px dashed #ddd;
    background-color: transparent;
    box-shadow: none;
    border-radius: 0;
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-right: 30px;
    min-width: 80px;
}

.news-date .date {
    color: #333;
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
}

.news-date .year {
    color: #666;
    font-size: 12px;
    margin-top: 2px;
}

.news-item-content {
    flex: 1;
}

.news-item h3 {
    color: #333;
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: bold;
    line-height: 1.4;
}

.news-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 0;
}

/* 加入我们页面 */
.join-us {
    background-color: #fff;
    /* padding: 60px 0; */
}

.join-us .contact-info {
    text-align: center;
    margin-bottom: 50px;
    padding: 30px;
    background-color: #f9f9f9;
        width: 50%;
}

.join-us .contact-info p {
    color: #333;
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.8;
    width: 100%;
}

/* 联系信息和招聘职位容器 */
.contact-job-container {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
    align-items: flex-start;
}

.contact-card-list {
    display: flex;
    gap: 30px;
}

.contact-card {
    width: 260px;
    padding: 30px 24px;
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
    text-align: center;
}

.contact-card-icon img {
    width: 56px;
    height: 56px;
    object-fit: contain;
    margin-bottom: 20px;
}

.contact-card-title {
    font-size: 20px;
    color: #0066cc;
    margin-bottom: 12px;
}

.contact-card-content {
    font-size: 14px;
    color: #555555;
    line-height: 1.8;
}

/* 调整联系信息样式 */
.join-us .contact-info {
    flex: 1;
    text-align: left;
    margin-bottom: 0;
    padding: 30px;
    background-color: #f9f9f9;
    width: auto;
}

.join-us.contact-company {
    padding: 35px 0;
}

.join-us.contact-company .contact-info {
    padding: 0;
    background-color: transparent;
    max-width: 920px;
}

.join-us.contact-company .contact-info p {
    margin: 6px 0;
    font-size: 20px;
    color: #666;
}

.join-us.contact-company .contact-company-name {
    margin: 0 0 12px 0;
    font-size: 22px;
    font-weight: 700;
    color: #0066cc;
    line-height: 1.35;
}

@media (max-width: 768px) {
    .join-us.contact-company {
        padding: 24px 0;
    }
    .join-us.contact-company .contact-company-name {
        font-size: 18px;
    }
}

/* 调整招聘职位样式 */
.job-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: none;
    margin: 0;
}

.job-item {
    padding: 15px 20px;
    background-color: #fff;
    border-left: 3px solid #3498db;
    margin-bottom: 10px;
}

.job-item h3 {
    margin-bottom: 10px;
    position: relative;
}

.job-title {
    margin-bottom: 10px;
    position: relative;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #3498db;
    font-size: 18px;
    font-weight: bold;
}

.arrow {
    font-size: 16px;
    transition: transform 0.3s ease;
    color: #3498db;
}

.arrow.rotated {
    transform: rotate(180deg);
}

.job-description {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-left: 20px;
}

.job-desc-title {
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.job-description p {
    margin-bottom: 5px;
    color: #666;
    line-height: 1.6;
}

/* 百度地图样式 */
.map-section {
    margin-bottom: 50px;
}

.map-container {
    /* width: 50%; */
    margin: 0 auto;
    border: 1px solid #eee;
    padding: 20px;
    background-color: #f9f9f9;
}

#gaode-map,
#osm-map,
#company-map {
    margin-bottom: 20px;
    border: 1px solid #ddd;
}

.contact-map-iframe {
    width: 100%;
    height: 500px;
    border: 1px solid #ddd;
    display: block;
    background: #fff;
}

.contact-map-actions {
    margin-top: 10px;
    text-align: right;
    display: none;
}

.contact-map-actions.is-visible {
    display: block;
}

.contact-map-open {
    color: #3498db;
    text-decoration: none;
    font-size: 14px;
}

.contact-map-open:hover {
    text-decoration: underline;
}

/* 留言反馈 */
.feedback-section {
    padding-top: 40px;
}

.feedback-inner {
    /* max-width: 900px; */
    margin: 0 auto;
}

.feedback-form {
    display: flex;
    gap: 50px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.feedback-form-left {
    flex: 1;
    min-width: 280px;
}

.feedback-form-right {
    width: 320px;
    flex-shrink: 0;
}

.feedback-title {
    font-size: 24px;
    color: #333;
    margin: 0 0 10px 0;
    font-weight: bold;
}

.feedback-desc {
    color: #666;
    font-size: 14px;
    margin: 0 0 25px 0;
    line-height: 1.5;
}

.feedback-field {
    margin-bottom: 18px;
}

.feedback-field label {
    display: block;
    font-size: 14px;
    color: #333;
    margin-bottom: 6px;
}

.feedback-input,
.feedback-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    color: #333;
    background: #fff;
    box-sizing: border-box;
}

.feedback-input:focus,
.feedback-textarea:focus {
    outline: none;
    border-color: #015cad;
}

.feedback-textarea {
    resize: vertical;
    min-height: 100px;
}

.feedback-tip {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    margin: 0 0 20px 0;
}

.feedback-tip-star {
    color: #e74c3c;
    margin-right: 2px;
}

.feedback-captcha-row .feedback-captcha-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.feedback-captcha-input {
    width: 120px !important;
    min-width: 120px;
}

.feedback-captcha-img {
    cursor: pointer;
    vertical-align: middle;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.feedback-captcha-refresh {
    font-size: 13px;
    color: #3498db;
    text-decoration: none;
}

.feedback-captcha-refresh:hover {
    text-decoration: underline;
}

.feedback-submit {
    display: block;
    width: 100%;
    max-width: 200px;
    margin-top: 20px;
    padding: 12px 24px;
    background-color: #015cad;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.feedback-submit:hover {
    background-color: #014a8f;
}

@media (max-width: 768px) {
    .feedback-form {
        flex-direction: column;
    }
    .feedback-form-right {
        width: 100%;
    }
}

.map-control {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.map-control label {
    font-weight: bold;
    color: #333;
}

.map-control input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    width: 120px;
}

.map-control button {
    padding: 8px 15px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.map-control button:hover {
    background-color: #2980b9;
}

.job-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.job-item {
    padding: 30px;
}

/* 百度地图样式 */
.map-section {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.map-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.map-control {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.map-control label {
    color: #333;
    font-weight: bold;
}

.map-control input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    width: 120px;
}

.map-control button {
    padding: 8px 15px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.map-control button:hover {
    background-color: #2980b9;
}

.job-item h3 {
    color: #333;
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: bold;
    position: relative;
    padding-bottom: 10px;
}

.job-item h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: #3498db;
}

.job-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 0;
}

/* 联系页面（备用样式） */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.contact-info h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 10px;
}

.contact-info p {
    color: #555;
    line-height: 1.8;
}

.contact-form h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    color: #555;
    margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

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

.submit-btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

/* 分页样式 */
.pagination {
    display: inline-block;
    padding-left: 0;
    margin: 20px 0;
    border-radius: 4px;
}
.pagination > li {
    display: inline;
}
.pagination > li > a,
.pagination > li > span {
    position: relative;
    float: left;
    padding: 6px 12px;
    margin-left: -1px;
    line-height: 1.42857143;
    color: #337ab7;
    text-decoration: none;
    background-color: #fff;
    border: 1px solid #ddd;
}
.pagination > li:first-child > a,
.pagination > li:first-child > span {
    margin-left: 0;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}
.pagination > li:last-child > a,
.pagination > li:last-child > span {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}
.pagination > li > a:hover,
.pagination > li > span:hover,
.pagination > li > a:focus,
.pagination > li > span:focus {
    z-index: 2;
    color: #23527c;
    background-color: #eee;
    border-color: #ddd;
}
.pagination > .active > a,
.pagination > .active > span,
.pagination > .active > a:hover,
.pagination > .active > span:hover,
.pagination > .active > a:focus,
.pagination > .active > span:focus {
    z-index: 3;
    color: #fff;
    cursor: default;
    background-color: #337ab7;
    border-color: #337ab7;
}
.pagination > .disabled > span,
.pagination > .disabled > span:hover,
.pagination > .disabled > span:focus,
.pagination > .disabled > a,
.pagination > .disabled > a:hover,
.pagination > .disabled > a:focus {
    color: #777;
    cursor: not-allowed;
    background-color: #fff;
    border-color: #ddd;
}/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 - 固定顶部 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.logo h1 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: bold;
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

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

.nav ul li a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* 轮播图样式 - 与首页 hero 高度一致 */
.banner {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/banner.jpg') center/cover no-repeat;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    margin-top: 0;
    padding: 0;
}

.banner.banner-no-overlay {
    background: none;
    height: 100vh;
    min-height: 600px;
}

/* 保持 banner 容器 100vh，图片铺满覆盖（与首页 hero 一致） */
.banner-no-overlay .banner-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
}

.banner-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* 通用 section 样式 */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 28px;
}

/* 优势部分 */
.advantages {
    background-color: #fff;
}

.advantage-item {
    text-align: center;
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* 技术工艺 */
.technology {
    background-color: #f9f9f9;
}

.tech-content {
    text-align: center;
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* 新闻部分 */
.news {
    background-color: #fff;
}

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

.news-item p {
    font-size: 18px;
    color: #555;
    margin-bottom: 20px;
}

.read-more {
    display: inline-block;
    padding: 10px 20px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.read-more:hover {
    background-color: #2980b9;
}

/* 特色部分 */
.features {
    background-color: #f9f9f9;
}

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

.feature-item {
    background-color: #fff;
    padding: 40px 20px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.feature-item h3 {
    color: #2c3e50;
    font-size: 22px;
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav ul {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav ul li {
        margin: 10px 0;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* 服务项目页面 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.service-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.service-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.service-item p {
    color: #555;
    line-height: 1.8;
}

/* 技术优势页面 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.tech-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.tech-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.tech-item p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

.tech-item ul {
    list-style: none;
}

.tech-item ul li {
    color: #555;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.tech-item ul li:before {
    content: "•";
    color: #3498db;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 新闻页面 */
.news-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.news-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: left;
}

.news-date {
    color: #3498db;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.news-item p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* 联系页面 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.contact-info h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 10px;
}

.contact-info p {
    color: #555;
    line-height: 1.8;
}

.contact-form h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    color: #555;
    margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

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

.submit-btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #2980b9;
}/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 - 固定顶部 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 5px 0;
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.logo h1 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: bold;
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

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

.nav ul li a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* 轮播图样式 - 与首页 hero 高度一致 */
.banner {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/banner.jpg') center/cover no-repeat;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    margin-top: 0;
    padding: 0;
}

.banner-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* 通用 section 样式 */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 28px;
}

/* 优势部分 */
.advantages {
    background-color: #fff;
}

.advantage-item {
    text-align: center;
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* 技术工艺 */
.technology {
    background-color: #f9f9f9;
}

.tech-content {
    text-align: center;
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

/* 新闻部分 */
.news {
    background-color: #fff;
    padding-top: 0px;
}

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

.news-item p {
    font-size: 18px;
    color: #555;
    margin-bottom: 20px;
}

.read-more {
    display: inline-block;
    padding: 10px 20px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.read-more:hover {
    background-color: #2980b9;
}

/* 特色部分 */
.features {
    background-color: #f9f9f9;
}

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

.feature-item {
    background-color: #fff;
    padding: 40px 20px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.feature-item h3 {
    color: #2c3e50;
    font-size: 22px;
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    font-size: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav ul {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav ul li {
        margin: 10px 0;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* 服务项目页面 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    /* gap: 30px; */
}

.service-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.service-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.service-item p {
    color: #555;
    line-height: 1.8;
}

/* 技术优势页面 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.tech-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.tech-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.tech-item p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

.tech-item ul {
    list-style: none;
}

.tech-item ul li {
    color: #555;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.tech-item ul li:before {
    content: "•";
    color: #3498db;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 新闻页面 */
.news-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.news-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: left;
}

.news-date {
    color: #3498db;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-item h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 15px;
}

.news-item p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* 联系页面 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.contact-info h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 10px;
}

.contact-info p {
    color: #555;
    line-height: 1.8;
}

.contact-form h3 {
    color: #2c3e50;
    font-size: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    color: #555;
    margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

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

.submit-btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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