:root {
    --primary-color: #4A6741;
    --secondary-color: #8BA888;
    --accent-color: #D4E6C9;
    --background-color: #FFFFFF;
    --text-color: #2C3E2D;
    --header-height: 80px;
}

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

body {
    font-family: "Microsoft YaHei", "SimHei", "Heiti SC", "黑体", sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(245, 248, 242, 0.85);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 180px;
}

.logo img {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: invert(27%) sepia(15%) saturate(1111%) hue-rotate(69deg) brightness(92%) contrast(120%);
    opacity: 1;
}

.logo-text {
    font-size: 22px;
    font-weight: 600;
    color: #2C3E2D;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin: 0 40px;
    flex: 1;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 17px;
    font-weight: 600;
    padding: 8px 12px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.search-box {
    display: flex;
    align-items: center;
    position: relative;
    min-width: 180px;
    margin-left: auto;
}

.search-box input {
    padding: 8px 12px;
    padding-right: 40px;
    border: 1px solid var(--secondary-color);
    border-radius: 20px;
    outline: none;
    width: 180px;
    background-color: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(74, 103, 65, 0.2);
}

.search-box button {
    background: none;
    border: none;
    padding: 8px;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.search-box button:hover {
    opacity: 1;
}

.search-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: relative;
}

.search-icon::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    width: 7px;
    height: 2px;
    background: var(--primary-color);
    transform: rotate(45deg);
    transform-origin: left center;
}

.hero-section {
    margin-top: var(--header-height);
    height: 75vh;
    background-color: var(--background-color);
}

.swiper {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    position: relative;
}

.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.85);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.slide-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.8s forwards;
}

.slide-content p {
    font-size: 24px;
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.8s 0.3s forwards;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.section-title,
.research-header h2,
.about-block h3,
.products-section h2,
.technology-section h2 {
    font-size: 36px;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.research-header p,
.section-description {
    font-size: 18px;
    color: #666;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.about-section {
    padding: 100px 0;
    background: linear-gradient(to bottom, #fff, var(--background-color));
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.about-block {
    margin-bottom: 20px;
}

.about-block h3 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 30px;
    position: relative;
    padding-left: 15px;
}

.about-block h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background-color: var(--primary-color);
}

.slogan {
    font-size: 24px;
    color: var(--secondary-color);
    text-align: center;
    margin: 30px 0;
    font-style: italic;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.mission-item {
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(74, 103, 65, 0.1);
    border: 1px solid var(--accent-color);
}

.mission-item h4 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 15px;
}

.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--secondary-color);
}

.timeline-item {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item .year {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: bold;
    margin-right: 20px;
}

.timeline-item .content {
    flex: 1;
    max-width: 500px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(74, 103, 65, 0.1);
}

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 40px;
    }

    .timeline-item .year {
        margin-bottom: 10px;
    }
}

.products-section {
    padding: 20px 0 80px 0;
    background-color: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
}

.product-image {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 比例 = 3/4 * 100% */
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 30px;
    text-align: center;
    margin-top: -20px;
    position: relative;
    background: white;
    border-radius: 15px;
}

.product-info h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.product-info p {
    color: var(--text-color);
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.6;
}

.btn-learn-more {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    outline: none;
    -webkit-touch-action: manipulation;
    touch-action: manipulation;
}

.btn-learn-more:hover {
    background-color: #5a7c4f;  /* 稍深一点的绿色 */
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 103, 65, 0.2);
}

.btn-learn-more:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(74, 103, 65, 0.15);
}

.btn-learn-more span {
    position: relative;
    z-index: 1;
}

.btn-learn-more::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.2);
    transform: scale(0);
    opacity: 0;
    border-radius: 25px;
    transition: transform 0.4s ease-out, opacity 0.3s ease-out;
}

.btn-learn-more:active::after {
    transform: scale(2);
    opacity: 0;
}

/* 用户评价部分 */
.testimonials-section {
    padding: 80px 0;
    background: linear-gradient(to bottom, #fff, var(--background-color));
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.testimonial-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 1px solid var(--accent-color);
    box-shadow: 0 5px 15px rgba(74, 103, 65, 0.1);
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 20px;
    border: 3px solid var(--secondary-color);
}

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

.testimonial-text {
    font-style: italic;
    margin-bottom: 15px;
    line-height: 1.6;
}

.testimonial-author {
    color: var(--primary-color);
    font-weight: 500;
}

/* 联系我们部分 */
.contact-section {
    padding: 80px 0;
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
}

.contact-info {
    padding-right: 40px;
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 24px;
}

.contact-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.social-media {
    margin-top: 40px;
}

.social-icons {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    align-items: center;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-icon img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.social-icon:hover {
    transform: translateY(-2px);
}

.contact-form {
    background: var(--background-color);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 5px 15px rgba(74, 103, 65, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--secondary-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
    background-color: rgba(255, 255, 255, 0.9);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 103, 65, 0.1);
}

.btn-submit {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-info {
        padding-right: 0;
    }

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

    .logo img {
        height: 45px;
        margin-right: 10px;
    }

    .nav-links {
        gap: 20px;
    }
    
    .nav-links a {
        padding: 6px 12px;
        font-size: 14px;
    }
}

/* 页脚整体样式 */
.footer {
    background-color: var(--primary-color);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.2fr;  /* 调整列宽比例 */
    gap: 60px;  /* 增加列间距 */
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 页脚区块样式 */
.footer-section {
    color: rgba(255, 255, 255, 0.8);
}

.footer-section h4 {
    color: white;
    font-size: 16px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 8px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
}

/* 联系方式样式 */
.footer-section .contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 联系项目样式 */
.contact-item {
    display: flex;
    align-items: center;
}

.contact-item span {
    min-width: 90px;  /* 固定标签宽度 */
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
}

.contact-item p {
    flex: 1;  /* 让内容占据剩余空间 */
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    padding-left: 20px;  /* 添加左侧内边距 */
    text-align: left;    /* 确保文本左对齐 */
}

/* 社交媒体图标 */
.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 0;  /* 移除顶部边距 */
    padding-top: 0; /* 移除顶部内边距 */
    border-top: none; /* 移除顶部边框 */
}

.social-icon {
    width: 32px;  /* 稍微增大图标尺寸 */
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s ease;
    opacity: 0.8;
}

.social-icon:hover {
    transform: translateY(-3px);
    opacity: 1;
}

.social-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 响应式调整 */
@media (max-width: 576px) {
    .contact-item {
        justify-content: flex-start;  /* 保持左对齐 */
    }
    
    .social-icons {
        justify-content: flex-start;  /* 保持左对齐 */
    }
    
    .footer-section {
        text-align: left;  /* 保持左对齐 */
    }
    
    .footer-section h4::after {
        left: 0;
        transform: none;
    }
}

/* 版权信息 */
.footer-bottom {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom .copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-item {
        justify-content: center;
    }
    
    .social-icons {
        justify-content: center;
    }
}

/* 按钮 */
.swiper-button-next,
.swiper-button-prev {
    color: white;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    opacity: 1;
}

/* 修改分页器样式 */
.swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: white;
    opacity: 0.7;
}

.swiper-pagination-bullet-active {
    background: var(--primary-color);
    opacity: 1;
}

/* 研发中心样式 */
.research-section {
    padding: 60px 0;
    background: #fff;
}

/* 研发中心标题和描述 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header p {
    font-size: 18px;
    color: #666;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

/* 数据统计部分 */
.research-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    padding: 20px;
    background: #f8f8f8;
    border-radius: 10px;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

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

/* 研发图片网格 */
.research-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(2, 300px);
    gap: 15px;
    margin-top: 30px;
}

.research-image {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 10px;
    height: 100%;
}

/* 调整每个图片的大小和位置 */
.research-image:nth-child(1) {
    grid-column: 1 / span 4;  /* 占据4列 */
    grid-row: 1;
}

.research-image:nth-child(2) {
    grid-column: 5 / span 5;  /* 占据5列 */
    grid-row: 1;
}

.research-image:nth-child(3) {
    grid-column: 10 / span 3;  /* 占据3列 */
    grid-row: 1;
}

.research-image:nth-child(4) {
    grid-column: 1 / span 3;  /* 占据3列 */
    grid-row: 2;
}

.research-image:nth-child(5) {
    grid-column: 4 / span 4;  /* 占据4列 */
    grid-row: 2;
}

.research-image:nth-child(6) {
    grid-column: 8 / span 5;  /* 占据5列 */
    grid-row: 2;
}

.research-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* 移动端适配 */
@media (max-width: 768px) {
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
        gap: 15px;
    }
    
    .research-image {
        padding-top: 75%;
    }
    
    .research-image:nth-child(n) {
        grid-column: auto;
        grid-row: auto;
    }
}

/* 品牌介绍部分样式 */
.about-block {
    margin-bottom: 80px;
}

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

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

.content-text {
    padding: 30px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
}

.content-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(74, 103, 65, 0.1);
    transition: transform 0.3s ease;
}

.content-image img:hover {
    transform: scale(1.02);
}

.milestone {
    margin-bottom: 30px;
}

.milestone h4 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 10px;
}

.timeline-content {
    position: relative;
    min-height: 500px;
    overflow: hidden;
    border-radius: 12px;
}

.timeline-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

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

.timeline-content:hover .timeline-background img {
    transform: scale(1.05);
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(0, 0, 0, 0.6) 50%,
        rgba(0, 0, 0, 0.4) 100%
    );
    z-index: 2;
}

.timeline-text {
    position: relative;
    z-index: 3;
    color: #ffffff;
    padding: 40px;
}

.milestone {
    margin-bottom: 30px;
}

.milestone h4 {
    color: #ffffff;
    font-size: 24px;
    margin-bottom: 15px;
    position: relative;
    padding-left: 20px;
}

.milestone h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: #ffffff;
    border-radius: 50%;
}

.milestone p {
    font-size: 16px;
    line-height: 1.6;
    opacity: 0.9;
    padding-left: 20px;
}

/* 背景器样式 */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--background-color);
}

.background-container img {
    max-width: 400px;  /* 控制logo大小 */
    opacity: 0.1;      /* 设置透明度，0.1表示10%不透明度 */
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* 添加大logo样式 */
.background-container::after {
    content: '';
    position: absolute;
    width: 400px;  /* logo宽度 */
    height: 400px; /* logo高度 */
    background-image: url('assets/logo/logo1.jpg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.1;  /* logo透明度 */
    z-index: 1;
}

/* 调整内容区域背景 */
.about-section,
.products-section,
.research-section {
    position: relative;
    background: rgba(255, 255, 255, 0.8); /* 增加透明度 */
    backdrop-filter: blur(2px); /* 减小模糊效果 */
}

/* 保持footer不透明 */
.footer {
    position: relative;
    background-color: var(--primary-color);
}

/* 核心技术部分样式 */
.tech-container {
    position: relative;
    padding: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.tech-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 20px;
}

/* 技术卡片基础样式 */
.tech-card {
    height: 300px;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
}

/* 图片样式 */
.tech-image {
    width: 65%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
}

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

/* 渐变遮罩 */
.tech-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0) 50%,    /* 保持一半区域完全透明 */
        rgba(255, 255, 255, 0.7) 75%,  /* 增加中间过渡的不透明度 */
        rgba(255, 255, 255, 1) 100%    /* 完全不透明 */
    );
}

/* 文字内容样式 */
.tech-preview-content {
    position: absolute;
    width: 50%;
    right: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 30px;
    z-index: 2;
}

.tech-preview-content h4 {
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: 600;
}

.tech-preview-content p {
    color: var(--text-color);
    font-size: 15px;
    line-height: 1.6;
    opacity: 0.9;
    max-width: 100%;
}

/* 脚快速链接样式 */
.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 10px;
}

.footer-links-grid a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s ease;
    padding: 5px 0;
}

.footer-links-grid a:hover {
    color: white;
}

/* 核心技术section样式 */
.technology-section {
    padding: 80px 0;
    background: linear-gradient(to bottom, #fff, var(--background-color));
    position: relative;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(2px);
}

/* 确保和其他section样式一致 */
.technology-section .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.technology-section .section-title {
    text-align: center;
    color: var(--primary-color);
    font-size: 32px;
    margin-bottom: 40px;
}

/* 调整卡片容器样式 */
.tech-container {
    position: relative;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.tech-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 20px;
}

/* 移动端响应式样式 */
@media (max-width: 768px) {
    /* 导航栏适配 */
    .nav-container {
        padding: 0 15px;
        flex-direction: row;
        align-items: center;
        gap: 10px;
        height: 50px;  /* 减小导航栏高度 */
    }

    .logo {
        width: auto;
        justify-content: flex-start;
        margin: 0;
        padding: 5px 0;
        min-width: auto;  /* 取消最小宽度限制 */
    }

    .logo img {
        width: 30px;
        height: 30px;
    }

    .logo-text {
        font-size: 16px;
    }

    .nav-links {
        flex: 1;
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        gap: 5px;
        width: auto;
        margin: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .nav-links::-webkit-scrollbar {
        display: none;
    }

    .nav-links a {
        font-size: 14px;
        padding: 6px 8px;
        white-space: nowrap;
    }

    .search-box {
        width: auto;
        min-width: auto;
        margin: 0;
    }

    .search-box input {
        width: 120px;
        height: 30px;
        font-size: 14px;
        padding: 0 30px 0 10px;
    }

    /* 轮播图适配 */
    .slide-content h2 {
        font-size: 28px;
    }

    .slide-content p {
        font-size: 16px;
    }

    /* 核心技术卡片适配 */
    .tech-card {
        height: auto;
        min-height: 400px;
    }

    .tech-image {
        width: 100%;
        height: 200px;
        position: relative;
    }

    .tech-preview-content {
        width: 100%;
        position: relative;
        right: auto;
        padding: 20px;
        background: white;
    }

    /* 研发中心卡片适配 */
    .research-card {
        height: 250px;
    }

    .research-content {
        padding: 20px;
    }

    .research-content h3 {
        font-size: 20px;
    }

    .research-content p {
        font-size: 14px;
    }

    /* 产品展示适配 */
    .product-image {
        height: 300px;
    }

    .product-info {
        padding: 20px;
    }

    .product-info h3 {
        font-size: 20px;
    }

    .product-info p {
        font-size: 14px;
    }

    /* 页脚适配 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px;
    }

    .social-icons {
        justify-content: center;
    }
}

/* 更小屏幕的额外调整 */
@media (max-width: 480px) {
    .section-title,
    .research-header h2,
    .about-block h3,
    .products-section h2,
    .technology-section h2 {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .tech-preview-content h4 {
        font-size: 20px;
    }

    .tech-preview-content p {
        font-size: 14px;
    }

    .btn-learn-more {
        padding: 8px 20px;
        font-size: 14px;
    }
}

/* 移动端导航栏样式优化 */
@media (max-width: 768px) {
    .header {
        height: auto;
        padding: 5px 0;
    }

    .nav-container {
        padding: 0 15px;
        flex-direction: row;
        align-items: center;
        gap: 10px;
        height: 50px;  /* 减小导航栏高度 */
    }

    .logo {
        width: auto;
        justify-content: flex-start;
        margin: 0;
        padding: 5px 0;
        min-width: auto;  /* 取消最小宽度限制 */
    }

    .logo img {
        width: 30px;
        height: 30px;
    }

    .logo-text {
        font-size: 16px;
    }

    .nav-links {
        flex: 1;
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        gap: 5px;
        width: auto;
        margin: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .nav-links::-webkit-scrollbar {
        display: none;
    }

    .nav-links a {
        font-size: 14px;
        padding: 6px 8px;
        white-space: nowrap;
    }

    .search-box {
        width: auto;
        min-width: auto;
        margin: 0;
    }

    .search-box input {
        height: 30px;
        font-size: 14px;
        padding: 0 30px 0 10px;
    }

    .search-box button {
        width: 35px;
        height: 35px;
    }

    /* 滚动时的导航栏样式 */
    .header.scrolled {
        padding: 5px 0;
    }

    .header.scrolled .nav-container {
        padding: 5px 10px;
    }
}

.brand-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 0;
    padding: 20px;
}

.feature-card {
    background: #E8F0E6;  /* 浅绿色背景 */
    padding: 40px 20px;
    border-radius: 20px;
    text-align: center;
    box-shadow: none;
    position: relative;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-card.highlight {
    background: #FFC4C4;  /* 浅粉色背景 */
    color: #333;
}

.feature-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon img {
    width: 50px;
    height: 50px;
}

.feature-card h4 {
    margin-bottom: 20px;
    font-size: 22px;
    color: #333;
    font-weight: 600;
}

.feature-card p {
    font-size: 15px;
    line-height: 1.8;
    color: #555;
    padding: 0 15px;
}

.social-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: white;
    text-decoration: underline;
}

.social-icon {
    transition: transform 0.3s ease;
}

.social-icon:hover {
    transform: scale(1.1);
}

.brand-paragraph {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #333;
}

.brand-paragraph:last-child {
    margin-bottom: 0;
}

.content-text {
    padding: 30px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
}

.timeline-image {
    width: 100%;
    height: 300px;  /* 调整高度确保图片完整显示 */
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 20px;
}

.timeline-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;  /* 确保图片合适填充 */
}

.history-section {
    padding: 80px 0;
    background: transparent;
}

.history-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.history-content {
    padding: 20px;
}

.history-item {
    margin-bottom: 40px;
}

.history-item:last-child {
    margin-bottom: 0;
}

.history-item h3 {
    font-size: 24px;
    color: #fff;
    margin-bottom: 15px;
    position: relative;
    padding-left: 20px;
}

.history-item h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
}

.history-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    font-size: 16px;
    padding-left: 20px;
}

.timeline-background {
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.timeline-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, 
        rgba(0, 0, 0, 0.7), 
        rgba(0, 0, 0, 0.4), 
        rgba(0, 0, 0, 0.1)
    );
}

@media (max-width: 768px) {
    .history-container {
        grid-template-columns: 1fr;
    }
    
    .timeline-background {
        height: 300px;
    }
}

.timeline-container {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 600px;
    border-radius: 20px;
    overflow: hidden;
    background: transparent;
}

.timeline-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.timeline-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.7),
        rgba(0, 0, 0, 0.5),
        rgba(0, 0, 0, 0.3)
    );
}

.timeline-content {
    position: relative;
    z-index: 2;
    padding: 60px;
    color: white;
    max-width: 50%;
}

.history-item {
    margin-bottom: 40px;
    padding-left: 30px;
}

.history-item:last-child {
    margin-bottom: 0;
}

.history-item h3 {
    font-size: 24px;
    color: #fff;
    margin-bottom: 15px;
    position: relative;
    font-weight: bold;
}

.history-item h3::before {
    content: '•';
    position: absolute;
    left: -30px;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 24px;
}

.history-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    font-size: 16px;
}

@media (max-width: 768px) {
    .timeline-container {
        min-height: auto;
        padding: 20px;
    }
    
    .timeline-background {
        position: relative;
        height: 300px;
    }
    
    .timeline-content {
        padding: 20px;
        max-width: 100%;
    }
    
    .history-item {
        padding-left: 20px;
    }
    
    .history-item h3::before {
        left: -20px;
    }
}

.tech-preview-image {
    position: relative;
    height: 100%;
    overflow: hidden;
    border-radius: 15px;
}

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

/* 添加黑色渐变遮罩 */
.tech-preview-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.1),
        rgba(0, 0, 0, 0.4),
        rgba(0, 0, 0, 0.7)
    );
}

/* 调整文字层级，确保在渐变上方 */
.tech-preview-content {
    position: absolute;
    width: 50%;
    right: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 30px;
    z-index: 2;
}

/* 添加弹窗样式 */
.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
}

.qr-modal-content {
    position: relative;
    background-color: white;
    margin: 15% auto;
    padding: 20px;
    width: 300px;
    border-radius: 10px;
    text-align: center;
}

.qr-modal-content img {
    width: 100%;
    height: auto;
    margin-bottom: 15px;
}

.qr-modal-content p {
    color: #333;
    margin: 0;
}

.close-modal {
    position: absolute;
    right: 10px;
    top: 5px;
    font-size: 24px;
    cursor: pointer;
    color: #666;
}

.close-modal:hover {
    color: #333;
}

/* 添加下划线装饰 */
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}