/* 全局样式 - 参考图片风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* 按钮样式 - 参考图片中的按钮风格 */
.btn-primary {
    background: #00BCD4;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    display: inline-block;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary:hover {
    background: #00ACC1;
}

.btn-secondary {
    background: transparent;
    color: #00BCD4;
    padding: 12px 24px;
    border: 1px solid #00BCD4;
    border-radius: 4px;
    text-decoration: none;
    display: inline-block;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #00BCD4;
    color: white;
}

.btn-consult {
    background: #00BCD4;
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-consult:hover {
    background: #00ACC1;
}

.btn-service {
    background: #00BCD4;
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-service:hover {
    background: #00ACC1;
}

.btn-expert {
    background: #00BCD4;
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-expert:hover {
    background: #00ACC1;
}

/* 头部导航 - 参考图片中的青绿色导航栏 */
.header {
    background: #00BCD4;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: bold;
    color: white;
}

.logo img {
    height: 32px;
    margin-right: 10px;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 24px;
}

.nav a {
    text-decoration: none;
    color: white;
    font-weight: 400;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav a:hover {
    background: rgba(255,255,255,0.1);
}

.header-contact .btn-consult {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

.header-contact .btn-consult:hover {
    background: rgba(255,255,255,0.3);
}

/* 主banner区域 - 参考图片风格 */
.hero {
    background: linear-gradient(135deg, #f0fdff 0%, #e6f9fb 100%);
    padding: 40px 0 60px;
    margin-top: 56px; /* 调整为导航栏高度 */
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text h1 {
    font-size: 28px;
    font-weight: 400;
    color: #666;
    margin-bottom: 8px;
    line-height: 1.3;
}

.hero-text h2 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 16px;
    line-height: 1.2;
}

.highlight {
    color: #00BCD4;
}

.hero-subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 24px;
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: 12px;
}

.hero-image {
    text-align: center;
}

.hero-image img {
    width: 100%;
    max-width: 480px;
    height: auto;
    border-radius: 8px;
}

/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 8px;
    font-weight: bold;
}

.section-header p {
    font-size: 14px;
    color: #666;
}

/* 服务项目区域 - 参考图片中的三个服务卡片 */
.services {
    padding: 7px 0;
    background: #ffffff;
}

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

.service-card {
    background: white;
    padding: 30px 20px;
    text-align: center;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.service-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #00BCD4;
}

.service-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-card h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 12px;
    font-weight: bold;
}

.service-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 16px;
}

/* 数据统计区域 - 参考图片中的灰色背景数字统计 */
.stats {
    padding: 50px 0;
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: #00BCD4;
    margin-bottom: 8px;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: #666;
    font-weight: 400;
}

/* 产品介绍区域 - 参考图片中左图右文的布局 */
.product-intro {
    padding: 60px 0;
    background: #ffffff;
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.product-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.product-text h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    font-weight: bold;
}

.product-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.feature-list h4 {
    font-size: 16px;
    color: #00BCD4;
    margin-bottom: 12px;
    font-weight: bold;
}

.feature-list ul {
    list-style: none;
}

.feature-list li {
    font-size: 14px;
    color: #666;
    margin-bottom: 6px;
    padding-left: 12px;
    position: relative;
}

.feature-list li:before {
    content: "•";
    color: #00BCD4;
    position: absolute;
    left: 0;
}

.product-cta {
    margin-top: 20px;
}

/* 服务项目 - 本地SVG图标样式 */
.service-avatar {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    background: #e6f9fb; /* 与全站青绿色系协调 */
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.service-avatar .icon {
    width: 48px;
    height: 48px;
    display: block;
}

/* 新闻资讯 - 文字列表样式 */
.news {
    padding: 40px 0;
    background: #f7fcfd;
}

.news-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.news-item {
    border: 1px solid #eee;
    border-radius: 8px;
    background: #fff;
}

.news-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    color: #333;
    text-decoration: none;
}

.news-title {
    font-size: 16px;
    line-height: 1.6;
    flex: 1;
}

.news-meta {
    font-size: 13px;
    color: #999;
    white-space: nowrap;
}

.news-link:hover .news-title {
    color: #00BCD4;
}

.news-cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 16px;
}

/* 桌面端两列 */
@media (min-width: 768px) {
    .news-list {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
}

/* 中间轮播图 - 1920*200px全屏宽度轮播 */
.carousel-banner {
    padding: 0;
    background: #ffffff;
    display: block;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.carousel-container {
    width: 100%;
    position: relative;
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

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

.carousel-slide a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.carousel-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.3s ease;
}

.carousel-slide a:hover .carousel-img {
    transform: scale(1.02);
}

/* 导航按钮 */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    pointer-events: none;
}

.carousel-prev,
.carousel-next {
    background: rgba(0, 188, 212, 0.8);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(0, 188, 212, 1);
    transform: scale(1.1);
}

/* 指示点 */
.carousel-dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active,
.dot:hover {
    background: #00BCD4;
    transform: scale(1.2);
}

/* 响应式适配 - 在小屏幕时隐藏 */
@media (max-width: 768px) {
    .carousel-banner {
        display: none;
    }
}

/* 平板适配 */
@media (min-width: 769px) and (max-width: 1024px) {
    .carousel-container {
        border-radius: 12px;
    }
    
    .carousel-wrapper {
        height: 150px;
    }
    
    .carousel-prev,
    .carousel-next {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }
}

/* 桌面适配 */
@media (min-width: 1025px) {
    .carousel-wrapper {
        height: 200px;
    }
}

/* 成功案例区域 - 参考图片中的案例展示 */
.cases {
    padding: 60px 0;
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

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

.case-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 12px;
}

.case-item h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 6px;
    font-weight: bold;
}

.case-item p {
    font-size: 14px;
    color: #666;
}

.cases-cta {
    text-align: center;
}

/* 联系咨询区域 - 参考图片中的青绿色背景联系区域 */
.contact {
    padding: 60px 0;
    background: linear-gradient(135deg, #00BCD4 0%, #00ACC1 100%);
    color: white;
}

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

.contact-info h2 {
    font-size: 28px;
    margin-bottom: 12px;
    font-weight: bold;
}

.contact-info p {
    font-size: 14px;
    margin-bottom: 24px;
    opacity: 0.9;
}

.contact-form {
    background: white;
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    width: 650px;
    max-width: 100%;
}

.contact-form h3 {
    color: #333;
    font-size: 18px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

.consultation-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.consultation-form input,
.consultation-form select,
.consultation-form textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.consultation-form input:focus,
.consultation-form select:focus,
.consultation-form textarea:focus {
    outline: none;
    border-color: #00BCD4;
}

.consultation-form textarea {
    min-height: 80px;
    resize: vertical;
}

.qr-code {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.qr-code img {
    width: 140px;
    height: 140px;
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.qr-code p {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

.contact-details {
    width: 100%;
    max-width: 280px;
}

.contact-details h4 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 16px;
    color: white;
    text-align: center;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 16px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.contact-label {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    flex-shrink: 0;
}

.contact-value {
    color: white;
    font-weight: 600;
    text-align: right;
}

/* 页脚 - 参考图片风格 */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    margin-bottom: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.footer-logo img {
    height: 32px;
    margin-right: 10px;
}

.footer-logo span {
    font-size: 18px;
    font-weight: bold;
}

.footer-info p {
    opacity: 0.8;
    line-height: 1.5;
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.link-group h4 {
    font-size: 16px;
    margin-bottom: 16px;
    color: #00BCD4;
    font-weight: bold;
}

.link-group ul {
    list-style: none;
}

.link-group li {
    margin-bottom: 8px;
}

.link-group a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.link-group a:hover {
    color: #00BCD4;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 16px;
    text-align: center;
}

.footer-bottom p {
    opacity: 0.7;
    font-size: 12px;
    line-height: 1.5;
}

.footer-bottom a {
    color: #00BCD4;
    text-decoration: none;
}

/* 浮动咨询按钮 - 参考图片风格 */
.floating-consult {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1000;
}

.float-btn {
    background: #00BCD4;
    color: white;
    padding: 12px 16px;
    border-radius: 24px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0, 188, 212, 0.3);
    transition: all 0.3s ease;
    font-size: 14px;
}

.float-btn:hover {
    background: #00ACC1;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 188, 212, 0.4);
}

.float-icon {
    font-size: 16px;
}

.float-text {
    font-weight: 500;
    font-size: 14px;
}

/* 响应式设计 - 参考图片风格 */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 24px;
    }
    
    .hero-text h2 {
        font-size: 28px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .product-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .product-features {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .experts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .nav ul {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 60px 0 40px;
        margin-top: 56px;
    }
    
    .hero-text h1 {
        font-size: 20px;
    }
    
    .hero-text h2 {
        font-size: 24px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .services, .stats, .product-intro, .experts, .cases, .contact {
        padding: 40px 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .experts-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .floating-consult {
        right: 16px;
        bottom: 16px;
    }
    
    .float-text {
        display: none;
    }
    
    .float-btn {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        justify-content: center;
        padding: 12px;
    }
}