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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    /* color: #F7F9FF; */
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    background: url('images/top_bg.svg') no-repeat center center;
    background-size: cover;
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 20px;
    height: 80px;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
    position: relative;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo img {
    width: 270px;
    height: 48px;
}

.nav-logo a {
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 4px;
    padding: 4px;
}

.nav-logo a:hover {
    opacity: 0.8;
    transform: scale(1.02);
    background-color: rgba(26, 115, 232, 0.05);
}

.nav-logo a:active {
    transform: scale(0.98);
    background-color: rgba(26, 115, 232, 0.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    position: absolute;
    left: 390px;
    right: 20px;
    justify-content: space-between;
    margin: 0;
    padding: 0;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: normal;
    transition: all 0.3s ease;
    position: relative;
    padding: 0 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    text-align: center;
    width: 140px;
    height: 80px;
    box-sizing: border-box;
}

.nav-link:hover,
.nav-link.active {
    color: #1a73e8;
    background-color: rgba(49, 107, 252, 0.06);
}

.hot-badge {
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    /* border-radius: 8px; */
    margin-left: 4px;
    font-weight: 600;
}


/* Hero Section - Banner Carousel */
.hero {
    position: relative;
    margin-top: 80px;
    overflow: hidden;
}

.banner-carousel {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 25.625%; /* 492/1920 = 0.25625, 保持原始宽高比 */
    overflow: hidden;
}

/* 固定Banner样式 */
.banner-fixed {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 25.625%; /* 492/1920 = 0.25625, 保持原始宽高比 */
    overflow: hidden;
}

.banner-fixed img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.carousel-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    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 img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}


.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 24px;
    height: 6px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: #007BFF;
    transform: scale(1.2);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.2);
    /* color: white; */
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.carousel-btn:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: translateY(-50%) scale(1.1);
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .banner-carousel {
        padding-bottom: 40%; /* 移动端调整宽高比 */
    }
    
    .banner-fixed {
        padding-bottom: 40%; /* 移动端调整宽高比 */
    }
    
    .news-hero {
        padding-bottom: 40%; /* 移动端调整宽高比 */
    }
    
    .carousel-btn {
        width: 30px;
        height: 30px;
        font-size: 18px;
    }
    
    .carousel-btn.prev {
        left: 10px;
    }
    
    .carousel-btn.next {
        right: 10px;
    }
    
    .carousel-indicators {
        bottom: 10px;
    }
    
    .indicator {
        width: 6px;
        height: 6px;
    }
}

@media (max-width: 480px) {
    .banner-carousel {
        padding-bottom: 50%; /* 小屏幕进一步调整 */
    }
    
    .banner-fixed {
        padding-bottom: 50%; /* 小屏幕进一步调整 */
    }
    
    .news-hero {
        padding-bottom: 50%; /* 小屏幕进一步调整 */
    }
    
    .carousel-btn {
        width: 35px;
        height: 35px;
        font-size: 16px;
        /* color: #666; */
    }
}

/* 导航栏响应式设计 */
@media (max-width: 1024px) {
    .navbar {
        height: 70px;
    }
    
    .hero {
        margin-top: 70px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-menu {
        gap: 20px;
        left: 470px;
    }
    
    .nav-logo {
        margin-left: 80px;
    }
    
    .nav-logo img {
        width: 216px;
        height: 38px;
    }
    
    .nav-link {
        height: 70px;
    }
    
    /* .nav-link:hover,
    .nav-link.active {
        border-radius: 8px;
    } */
}

@media (max-width: 768px) {
    .navbar {
        height: 70px;
        padding: 0 15px;
    }
    
    .hero {
        margin-top: 70px;
    }
    
    .nav-container {
        position: relative;
    }
    
    .nav-logo {
        margin-left: 20px;
    }
    
    .nav-logo img {
        width: 162px;
        height: 29px;
    }
    
    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0;
        padding: 20px;
    
        border-radius: 0 0 16px 16px;
        display: none;
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        font-size: 16px;
        padding: 15px 20px;
        width: 100%;
        height: auto;
        text-align: center;
        border-radius: 8px;
        margin-bottom: 8px;
        box-sizing: border-box;
    }
    
    .nav-link:hover,
    .nav-link.active {
        padding: 15px 20px;
        background-color: rgba(49, 107, 252, 0.1);
        border-radius: 8px;
    }
    

    
    .mobile-menu-toggle {
        position: absolute;
        top: 50%;
        right: 20px;
        transform: translateY(-50%);
        background: none;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        color: #333;
        z-index: 1001;
        padding: 8px;
        border-radius: 4px;
        transition: all 0.3s ease;
    }
    
    .mobile-menu-toggle:hover {
        background-color: rgba(0, 0, 0, 0.1);
    }
    
    .mobile-menu-toggle.active {
        transform: translateY(-50%) rotate(90deg);
    }
}

@media (max-width: 480px) {
    .navbar {
        height: 60px;
        padding: 0 10px;
    }
    
    .hero {
        margin-top: 60px;
    }
    
    .nav-logo {
        margin-left: 15px;
    }
    
    .nav-logo img {
        width: 135px;
        height: 24px;
    }
    
    .nav-menu {
        top: 60px;
        padding: 15px;
    }
    
    .nav-link {
        font-size: 15px;
        padding: 12px 16px;
        margin-bottom: 6px;
        height: auto;
        box-sizing: border-box;
    }
    
    .nav-link:hover,
    .nav-link.active {
        padding: 12px 16px;
        border-radius: 8px;
    }
    

    
    .mobile-menu-toggle {
        right: 15px;
        font-size: 1.3rem;
        padding: 6px;
    }
}



/* 功能特色 */
.features {
    width: 100%;
    height: 120px;
    padding: 30px 0;
    background: linear-gradient(to bottom, #DDE9FF, #F2F7FF);
}
.features .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.feature-card {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
}

.feature-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}
.feature-icon img {
    width: 48px;
    height: 48px;
}

.feature-content {
    flex: 1;
}

.feature-content h3 {
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 8px;
    color: #333;
    white-space: nowrap;
}

.feature-content p {
    color: #666;
    font-size: 0.9rem;
    margin: 0;
    white-space: nowrap;
}

/* 解决方案 */
.solutions {
    padding: 50px 0;
    background: white;
}

.solutions h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 400;
    /* margin-top: 0; */
    margin-bottom: 50px;
    color: #333;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.solution-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.15);
}

.solution-image {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
    cursor: zoom-in;
}

.demo-screen {
    width: 100%;
    height: 100%;
    /* background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); */
    position: relative;
    overflow: hidden;
    object-fit: cover;
    transition: transform 0.3s;
}
.demo-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

 .solution-image:hover.screen-1 img{
    transform: scale(1.1); /* 放大效果 */
    transition: transform 0.3s ease;
}

 .solution-image:hover.screen-2 img {
    transform: scale(1.1); /* 放大效果 */
    transition: transform 0.3s ease;
}

 .solution-image:hover.screen-3 img {
    transform: scale(1.1); /* 放大效果 */
    transition: transform 0.3s ease;
} 

.solution-card h3 {
    text-align: center;
    padding: 20px 24px 8px;
    font-size: 1.3rem;
    font-weight: 400;
    color: #333;
}

.solution-card p {
    text-align: center;
    padding: 0 24px 24px;
    font-size: 16px;
    color: #1a73e8;
    font-weight: 400;
}

/* 新闻资讯 */
.news {
    padding: 50px 0;
    background: #f8f9fa;
}

.news h2 {
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: 50px;
    color: #333;
    text-align: center;
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
    height: 400px;
}

.news-featured {
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.news-carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

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

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

.news-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
}

.news-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 0 0 16px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
}

.news-overlay-text {
    color: white;
    font-size: 14px;
    font-weight: 400;
}

.news-dots {
    position: absolute;
    bottom: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
    z-index: 10;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transition: background 0.3s ease;
}

.dot.active {
    background: white;
}

/* 页面刷新动画效果 */
.page-refresh {
    /* 移除页面缩放和淡化效果，保持页面原样 */
}

.refresh-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.refresh-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.refresh-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.refresh-text {
    color: #1a73e8;
    font-size: 16px;
    font-weight: 500;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

/* 主要产品页面样式 */
.products-hero {
    /* width: 100%; */
    height: 328px;
    position: relative;
    margin-top: 80px;
    overflow: hidden;
    /* background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%); */
}

.products-carousel {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.products-hero .carousel-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

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

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

.products-hero .carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.products-hero .carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.products-hero .indicator {
    width: 24px;
    height: 6px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.products-hero .indicator.active {
    background: #007BFF;
    transform: scale(1.2);
}

.products-hero .carousel-btn {
   position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.2);
    /* color: white; */
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.products-hero .carousel-btn:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.products-hero .carousel-btn.prev {
    left: 20px;
}

.products-hero .carousel-btn.next {
    right: 20px;
}

/* 产品分类导航 */
.product-categories {
    background: white;
    margin-top: 30px;
    margin-bottom: 30px;
    /* padding: 30px 0; */
    border-bottom: 1px solid #e9ecef;
}

/* 解决方案页面隐藏分割线 */
body.solutions-page .product-categories {
    border-bottom: none;
}

.category-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.tab-item {
    padding: 12px 24px;
    cursor: pointer;
    font-weight: 500;
    color: #6c757d;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.tab-item:hover,
.tab-item.active {
    color: #4a90e2;
    border-bottom-color: #4a90e2;
}

/* 产品展示区域 */
/* .products-showcase {
    padding: 40px 0;
    background: #f8f9fa;
    min-height: 600px;
} */

.product-category-content {
    display: none;
}

.product-category-content.active {
    display: block;
}

.category-section {
    margin-bottom: 20px;
}

.category-section h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 400;
    /* border-left: 4px solid #4a90e2; */
    /* padding-left: 15px; */
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-item {
    background: white;
    /* border-radius: 12px; */
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

/* .product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
} */

.product-preview {
    position: relative;
    height: 200px;
    background: linear-gradient(45deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
    pointer-events: none;
    transition: background 0.3s ease;
}

.product-preview::after {
    content: '查看详情';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.3s ease, background-position 0.3s ease;
    pointer-events: none;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    padding-right: 45px;
    background-image: url('images/look_xq_icon.svg');
    background-size: 20px 20px;
    background-repeat: no-repeat;
    background-position: calc(100% - 25px) center;
}

.product-preview img {
    width: 100%;
    height: 100%;
    /* width: 368px;
    height: 200px; */
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-item:hover .product-preview::before {
    background: #007AFF;
    opacity: 0.8;
}

.product-item:hover .product-preview::after {
    opacity: 1;
    background-position: calc(100% - 10px) center;
}

.product-item:hover .product-preview img {
    transform: scale(1.1);
}

/* 隐藏悬停时的product-overlay */
.product-item:hover .product-overlay {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
    gap: 8px;
    transition: opacity 0.3s ease;
}

.product-overlay img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.product-overlay h4 {
    text-align: center;
    font-size: 16px;
    font-weight: 400;
    margin: 0;
}

.product-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
    text-align: center;
    margin-bottom: 25px;
}

.product-image img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.product-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
    text-align: center;
}

.product-content p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: center;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 25px;
}

.feature-tag {
    background: #e3f2fd;
    color: #1976d2;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.product-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.tech-advantages {
    padding: 80px 0;
    background: white;
}

.tech-advantages h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 50px;
}

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

.advantage-item {
    text-align: center;
    padding: 30px 20px;
}

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

.advantage-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.advantage-item p {
    color: #6c757d;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .products-banner {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .banner-content h1 {
        font-size: 2rem;
    }
    
    .banner-illustration {
        height: 200px;
    }
    
    .tech-nodes {
        width: 200px;
        height: 200px;
    }
    
    .category-tabs {
        gap: 20px;
    }
    
    .tab-item {
        font-size: 1rem;
        padding: 10px 16px;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .category-section h3 {
        font-size: 1.3rem;
    }
    
    .products-hero {
        padding: 100px 0 60px;
    }
    
    .products-hero h1 {
        font-size: 2.2rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-card {
        padding: 20px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.refresh-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #1a73e8;
    border-right: 4px solid #4285f4;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
}

@keyframes spin {
    0% { 
        transform: rotate(0deg);
        box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
    }
    50% {
        box-shadow: 0 6px 20px rgba(26, 115, 232, 0.5);
    }
    100% { 
        transform: rotate(360deg);
        box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
    }
}
.news-image {
    height: 300px;
    position: relative;
}

.conference-poster {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* .conference-poster::after {
    content: '中国国际大学生创新大赛\A(2024)';
    white-space: pre;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
} */

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    background: white;
    padding: 12px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

/* .news-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
} */

.news-date {
    color: #999;
    font-size: 0.9rem;
    /* font-weight: 500; */
}

.news-item h3 {
    font-size: 1.1rem;
    font-weight: 400;
    margin: 8px 0;
    color: #333;
}

.news-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

.news-more {
    text-align: center;
}

.news-more a {
    color: #1a73e8;
    text-decoration: none;
    font-weight: 400;
    font-size: 1.1rem;
}

/* 统计数据 */
.stats {
    min-height: 500px;
    padding: 0;
    background: white;
    display: flex;
    align-items: center;
}

.stats .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
    width: 100%;
}

.stats-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stats-text h2 {
    text-align: left;
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 20px;
    color: #333;
}

.stats-text p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 50px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 500;
    color: #1a73e8;
    margin-bottom: 4px;
}

.stat-label {
    color: #333;
    font-size: 20px;
    white-space: nowrap;
}

.stats-visual {
    position: relative;
    width: 500px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

 .china-map{
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
 }
 .china-map img{
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    transition: transform 0.3s ease;
 }
 /* .china-map img:hover{
    transform: scale(1.1);
 } */
 
 @media (max-width: 768px) {
    .china-map {
        width: 100%;
        height: auto;
        padding-right: 0;
    }
 }
 
 @media (max-width: 480px) {
    .china-map {
        width: 100%;
        height: 300px;
        padding-right: 0;
    }
 }
 /* .china-map:hover img{
    transform: scale(1.1);
 } */

/* .china-map::after {
    content: '🗺️';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    opacity: 0.6;
} */

/* CTA Section */
.cta-section {
    width: 100%;
    max-width: 1920px;
    height: 240px;
    padding: 0;
    margin: 0 auto;
    overflow: hidden;
}

.cta-section .container {
    max-width: none;
    padding: 0;
    margin: 0;
}

.cta-section img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    display: block;
}


/* .cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    max-width: 800px;
    margin: 0 auto;
} */

/* 页脚 */
.footer {
    background: #F2F7FF;
    /* color: white; */
    padding: 40px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 40px;
    margin-bottom: 20px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 400;
    margin-bottom: 20px;
    color: #333;
}

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

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

.footer-column a {
    color: #666;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: #1a73e8;
}

.qr-code {
    width: 100px;
    height: 100px;
    margin-top: 20px;
    text-align: center;
}

.qr-code img {
    width: 100px;
    height: 100px;
    display: block;
    margin: 0 auto;
}

.qr-code p {
    margin-top: 8px;
    font-size: 12px;
    color: #aaa;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid #ddd;
    padding-top: 20px;
    text-align: center;
    color: #999;
    font-size: 0.8rem;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        
    }
    
    .stats .container {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .cta-section {
        height: 180px;
    }
    
    .cta-section img {
        height: 180px;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .qr-code {
        width: 134px;
        height: 134px;
    }
    
    .qr-code img {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 400px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .qr-code {
        width: 100px;
        height: 100px;
    }
    
    .qr-code img {
        width: 100px;
        height: 100px;
        overflow: hidden;
    }
}

/* 新闻页面样式 */
.news-hero {
    position: relative;
    width: 100%;
    height: 0;
    margin-top: 80px;
    padding-bottom: 25.625%; /* 492/1920 = 0.25625, 保持原始宽高比 */
    overflow: hidden;
    /* cursor: pointer; */
    /* transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); */
    /* transform: scale(1); */

}

.news-hero img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.news-hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
    color: white;
    text-align: center;
}




.news-hero-content h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.news-hero-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 400;
}

.news-content {
    padding: 50px 0;
    background: #f8f9fa;
}

.news-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.news-grid-page {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.news-card {
    background: white;
    /* border-radius: 12px; */
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.news-card .news-image {
    height: 140px;
    overflow: hidden;
}

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

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

.news-card .news-info {
    padding: 12px;
}

.news-card .news-info h3 {
    font-size: 1rem;
    font-weight: 400;
    margin: 0 0 2px;
    color: #333;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card .news-date {
    color: #999;
    font-size: 0.85rem;
    font-weight: 400;
    margin: 0;
}

/* .news-card .news-info p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
} */

/* 分页样式 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    padding: 8px 16px;
    border: 1px solid #ddd;
    background: white;
    color: #666;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.page-btn:hover:not(:disabled) {
    background: #1a73e8;
    color: white;
    border-color: #1a73e8;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    align-items: center;
    gap: 4px;
}

.page-number {
    width: 36px;
    height: 36px;
    border: 1px solid #ddd;
    background: white;
    color: #666;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-number:hover {
    background: #1a73e8;
    color: white;
    border-color: #1a73e8;
}

.page-number.active {
    background: #1a73e8;
    color: white;
    border-color: #1a73e8;
}

.page-dots {
    color: #999;
    padding: 0 8px;
    font-size: 14px;
}

/* 新闻详情页面样式 */
.news-detail-hero {
    background: url('./images/news_banner.jpg') center/cover no-repeat;
    padding: 40px 0 20px;
    margin-top: 80px;
    height: 328px;
    display: flex;
    align-items: center;
    position: relative;
    min-height: 200px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .news-detail-hero {
        height: 200px;
        padding: 20px 0 10px;
        margin-top: 60px;
    }
}

@media (max-width: 480px) {
    .news-detail-hero {
        height: 150px;
        padding: 15px 0 8px;
    }
}



.news-detail-content {
    padding: 40px 0;
    background: #f8f9fa;
}

.news-detail-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
}

.news-detail-main {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.news-detail-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.news-detail-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    line-height: 1.4;
    margin: 0 0 20px;
}

.news-detail-meta {
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    color: #999;
    font-size: 14px;
}

.news-detail-meta span {
    text-align: center;
    display: flex;
    align-items: center;
}

.news-detail-body {
    line-height: 1.8;
    color: #333;
    font-size: 16px;

}

.news-detail-body p {
    text-align: center;
    margin: 0 0 10px;
    text-align: justify;
    text-indent: 2em;
}

.news-detail-image {
    margin: 30px 0;
    max-width: 1170px;
    text-align: center;
}

.news-detail-image img {
  
    width: 100%;
    height: auto;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.image-caption {
    margin-top: 10px;
    font-size: 14px;
    color: #666;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.news-detail-actions {
    margin-top: 20px;
    padding-top: 30px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.news-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    background: #f0f0f0;
    color: #666;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.tag:hover {
    background: #1a73e8;
    color: white;
}

.news-share {
    display: flex;
    align-items: center;
    gap: 10px;
}

.news-share span {
    color: #666;
    font-size: 14px;
}

.share-btn {
    padding: 6px 12px;
    background: #f0f0f0;
    color: #666;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.3s ease;
}

.share-btn:hover {
    background: #1a73e8;
    color: white;
}

.news-navigation {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.nav-item {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.nav-label {
    color: #666;
    font-size: 14px;
    white-space: nowrap;
}

.nav-item a {
    color: #1a73e8;
    text-decoration: none;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.nav-item a:hover {
    color: #0d47a1;
}

/* 侧边栏样式 */
.news-detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-section {
    background: white;
    /* border-radius: 12px; */
    padding: 25px;
    /* box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); */
}

.sidebar-section h3 {
    font-size: 18px;
    font-weight: 400;
    color: #333;
    margin: 0 0 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #1a73e8;
}

.sidebar-news-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-news-list li {
    margin-bottom: 20px;
    padding-bottom: 20px;
    /* border-bottom: 1px solid #f0f0f0; */
}

.sidebar-news-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.sidebar-news-list a {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.sidebar-news-list a:hover {
    transform: translateY(-2px);
}

.sidebar-news-list img {
    width: 60px;
    height: 45px;
    object-fit: cover;
    border-radius: 4px;
    flex-shrink: 0;
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

.sidebar-news-info h4 {
    font-size: 14px;
    font-weight: 400;
    color: #333;
    line-height: 1.4;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-news-date {
    font-size: 12px;
    color: #999;
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sidebar-tag {
    background: #f8f9fa;
    color: #666;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.sidebar-tag:hover {
    background: #1a73e8;
    color: white;
    border-color: #1a73e8;
}

/* 新闻详情页面响应式设计 */
@media (max-width: 1024px) {
    .news-detail-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .news-detail-main {
        padding: 30px 20px;
    }
    
    .news-detail-title {
        font-size: 1.6rem;
    }
}

@media (max-width: 768px) {
    .news-detail-main {
        padding: 20px 15px;
    }
    
    .news-detail-title {
        font-size: 1.4rem;
    }
    
    .news-detail-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .news-detail-actions {
        flex-direction: column;
        align-items: flex-start;
    }
    

}

/* 新闻页面响应式设计 */
@media (max-width: 1200px) {
    .news-grid-page {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .news-hero {
        padding: 80px 0 50px;
    }
    
    .news-hero-content h1 {
        font-size: 2rem;
    }
    
    .news-hero-content p {
        font-size: 1rem;
    }
    
    .news-content {
        padding: 40px 0;
    }
    
    .news-grid-page {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .page-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .page-number {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }
}

/* 解决方案页面样式 */
.solution-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
    padding: 40px 0;
}

.solution-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 30px;
    line-height: 1.2;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px 0;
}

.feature-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-item p {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    margin: 0;
}

.solution-preview {
    display: flex;
    justify-content: center;
    align-items: center;
}

.solution-preview img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.category-section {
    margin-bottom: 50px;
}

.category-section h3 {
    font-size: 1.8rem;
    font-weight: 400;
    color: #1a1a1a;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .solution-hero {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .solution-content h1 {
        font-size: 2rem;
    }
    
    .feature-item {
        justify-content: center;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .solutions h2,
    .news h2,
    .stats-text h2,
    .cta-section h2 {
        font-size: 1.8rem;
    }
    
    .solution-content h1 {
        font-size: 1.8rem;
    }
    
    .category-section h3 {
        font-size: 1.5rem;
    }
}

/* 关于我们页面样式 */
.about-container {
    display: flex;
    width: 100%;
    margin: 0;
    padding: 0 40px;
    gap: 0;
    min-height: calc(100vh - 120px);
    box-sizing: border-box;
}

/* 关于我们左侧菜单栏 */
.sidebar {
    width: 286px;
    background: #F8F9FB;
    position: sticky;
    top: 120px;
    height: calc(100vh - 120px);
    overflow-y: auto;
    transition: width 0.3s ease;
}

/* .sidebar-header {
    padding: 40px 30px 30px;
    border-bottom: 1px solid #E5E7EB;
    background: white;
}

.sidebar-title {
    font-size: 24px;
    font-weight: 700;
    color: #1F2937;
    margin: 0;
    letter-spacing: -0.5px;
}

.sidebar-subtitle {
    font-size: 14px;
    color: #6B7280;
    margin: 8px 0 0;
    font-weight: 400;
} */

.sidebar-nav {
    /* padding: 20px 0; */
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    overflow: visible;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    margin: 0;
}



.sidebar-link {
    display: flex;
    align-items: center;
    padding: 18px 30px;
    color: #666;
    text-decoration: none;
    font-size: 18px;
    font-weight: 400;
    margin: 0;
    transition: all 0.3s ease;
    position: relative;
    text-align: center;
    justify-content: center;
    background: #f8f9fa;
    margin-bottom: 8px;
}

.sidebar-link::before {
    display: none;
}

.sidebar-link:hover {
    background: #e9ecef;
    color: #495057;
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}



.sidebar-link.active {
    background: #007bff !important;
    font-weight: 500;
    color: #fff !important;
    width: 286px;
    height: 80px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: none !important;
    margin-bottom: 8px;
}





/* 右侧内容区域 */
.content-area {
    flex: 1;
    min-width: 0;
    padding: 40px 60px;
    background: white;
    overflow-y: auto;
}

.content-section {
    margin-bottom: 0;
    /* padding: 40px; */
    border-radius: 12px;
    /* background-color: #FCF7F2; */
}

.content-section h2 {
    font-size: 30px;
    font-weight: 500;
    color: #0057C2;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #0057C2;
    position: relative;
}

.content-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 160px;
    height: 3px;
    background: linear-gradient(135deg,#0057C2);
    /* background: linear-gradient(135deg, #007bff, #0056b3); */
}

/* 公司简介样式 */
.intro-content {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: 30px;
    align-items: start;
}

.intro-text1 p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 10px;
    text-indent: 2em;
    text-align: left;
}
.intro-text2 p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 10px;
    text-indent: 2em;
    text-align: left;
}

.intro-image {
    text-align: left;
}

.intro-image img {
    max-width: 977px;
    width: 100%;
    height: auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

/* 资质荣誉样式 */
.company-certificate1, .company-certificate2, .company-certificate3 {
    text-align: left;
    margin-bottom: 40px;
}

.company-certificate1 img, .company-certificate2 img, .company-certificate3 img {
    max-width: 977px;
    width: 100%;
    height: auto;
    /* border-radius: 8px; */
    margin-top: 20px;
}

/* 颁奖现场样式 */
.award-ceremony {
    text-align: left;
    margin-bottom: 20px;
}

.award-ceremony img {
    max-width: 977px;
    width: 100%;
    height: auto;
    /* box-shadow: 0 4px 20px rgba(0,0,0,0.1); */
    /* border-radius: 8px; */
}

.ceremony-caption {
    font-size: 12px;
    color: #999;
    margin-top: 15px;
    text-align: center;
}

/* 公司证书样式 */
.company-certificate1 img,
.company-certificate2 img,
.company-certificate3 img {
    max-width: 977px;
    width: 100%;
    height: auto;
}

.company-certificate1,
.company-certificate2,
.company-certificate3 {
    text-align: left;
    margin-bottom: 30px;
}

.company-certificate1 .ceremony-caption,
.company-certificate2 .ceremony-caption,
.company-certificate3 .ceremony-caption {
    font-size: 12px;
    color: #666;
    margin-top: 15px;
}



.certificate-item {
    border-radius: 8px;
    overflow: hidden;
    /* box-shadow: 0 2px 10px rgba(0,0,0,0.1); */
    transition: all 0.3s ease;
    cursor: pointer;
}

.certificate-item:hover {
    transform: translateY(-5px);
    /* box-shadow: 0 8px 25px rgba(0,0,0,0.15); */
}

.certificate-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.certificate-item:hover img {
    transform: scale(1.05);
}

/* 资质说明文字样式 */
.qualifications-description p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
    text-indent: 2em;
    text-align: left;
}

.qualifications-description p:last-child {
    margin-bottom: 0;
}

/* 响应式设计 */
/* @media (max-width: 1024px) {
    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .award-ceremony img {
        max-width: 100%;
    }
    
    .qualifications-description {
        padding: 20px;
    }

    
    .qualifications-description p {
        font-size: 1rem;
        text-indent: 1.5em;
    }
} */

.qualification-item {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #007bff;
}

.qualification-item h3 {
    font-size: 16px;
    font-weight: 400;
    margin: 0 0 2px;
    color: #333;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 20px;
}

/* 人才招聘样式 */
.recruitment-layout {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-top: 30px;
}

.recruitment-text {
    flex: 2;
}

.recruitment-image {
    flex: 1;
}

.recruitment-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.recruitment-line {
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.recruitment-line h3 {
    color: #2c5aa0;
    font-size: 16px;
    margin: 0;
    font-weight: 400;
    flex-shrink: 0;
}

.recruitment-line p {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
    margin: 0; 
    flex: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .recruitment-layout {
        flex-direction: column;
        gap: 20px;
    }
    
    .recruitment-text,
    .recruitment-image {
        flex: none;
    }
}

/* 保留原有样式以防其他地方使用 */
.recruitment-intro {
    margin-bottom: 30px;
}

.recruitment-intro p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    text-align: center;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

.job-positions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.job-item {
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
}

.job-item:hover {
    border-color: #007bff;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,123,255,0.15);
}

.job-item h3 {
    color: #007bff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
}

.job-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 发展历程样式 */
/* 发展历程简化样式 */
.timeline {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
}

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

.timeline-item img {
    width: 1382px;
    height: 3175px;
    max-width: 100%;
    height: auto;
}

.contact-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-bottom: 30px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.contact-item {
    display: flex;
}

.contact-details h3 {
    color: #007bff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}

.contact-details p {
    color: #555;
    line-height: 1.6;
    margin-bottom: 8px;
}

.contact-details p:last-child {
    margin-bottom: 0;
}

.contact-details p strong {
    color: #333;
}

.contact-note {
    font-size: 14px;
    color: #888 !important;
    font-style: italic;
}

/* 快速联系表单 */
.quick-contact {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.quick-contact h3 {
    color: #007bff;
    margin-bottom: 20px;
    font-size: 16px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

.submit-btn {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}


/* 响应式设计 */
@media (max-width: 768px) {
    .about-container {
        flex-direction: column;
        padding: 0;
        gap: 0;
    }
    
    .sidebar {
        width: 286px;
        background-color: #F8F9FB;
        position: static;
        height: auto;
    }
    
    .sidebar-link.active {
        width: 286px !important;
        height: 80px !important;
        background: rgba(0, 123, 255, 0.2) !important;
        color: #007bff !important;
        transform: none !important;
        z-index: 1;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2) !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        font-weight: 500 !important;
        margin-bottom: 8px;
    }
    
    .sidebar-link {
        transition: all 0.3s ease;
        border-left: 3px solid transparent;
        background: #f8f9fa;
        margin-bottom: 8px;
    }
    
    .sidebar-link:hover {
        background: #e9ecef !important;
        color: #495057 !important;
        transform: translateY(-2px);
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    
     */
    .sidebar-nav {
        margin-bottom: 20px;
    }
    
    .sidebar-menu {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        padding: 0 20px;
    }
    
    .sidebar-menu li {
        flex: 1;
        min-width: calc(50% - 4px);
    }
    
    .sidebar-link {
        padding: 12px 8px;
        text-align: center;
        font-size: 18px;
        border-left: none;
        justify-content: center;
    }
    
    .sidebar-link::before {
        display: none;
    }
    

    
    .content-area {
        padding: 30px 20px;
    }
    
    .content-section {
        padding: 25px 20px;
        margin-bottom: 40px;
    }
    
    .content-section h2 {
        font-size: 1.8rem;
    }
    
    .qualifications-grid,
    .job-positions,
    .contact-grid,
    .contact-main,
    .promise-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    

    
    .contact-main {
        gap: 30px;
    }
    
    .traffic-options {
        gap: 10px;
    }
    
    .traffic-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        text-align: left;
    }
    
    .timeline {
        padding: 10px;
    }
    
    .timeline-item img {
        width: 100%;
        height: auto;
        max-width: 100%;
    }
    
    .intro-image img {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .about-container {
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .about-container {
        padding: 0 15px;
    }
    
    .sidebar-menu li {
        min-width: 100%;
    }
    
    .sidebar-link {
        font-size: 16px;
        padding: 15px;
    }
    
    .content-area {
        padding: 20px 15px;
    }
    
    .content-section {
        padding: 20px 0;
    }
    
    .content-section h2 {
        font-size: 1.6rem;
    }
    
    .qualification-item,
    .job-item,
    .contact-item {
        padding: 20px;
    }
}

/* 发展历程 */
.development-history {
    padding: 50px 0;
    /* background: #f8f9fa; */
}

.development-history h2 {
    font-size: 30px;
    font-weight: 400;
    color: #0057C2;
    margin-bottom: 20px;
}

/* 研究方向 */
.research-areas {
    padding: 80px 0;
    background: white;
}

.research-areas h2 {
  
    font-size: 30px;
    font-weight: 400;
    color: #0057C2;
    margin-bottom: 50px;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.research-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.research-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.research-icon img {
    width: 100%;
    height: 100%;
}

.research-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

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

/* 团队介绍 */
.team-intro {
    padding: 80px 0;
    background: #f8f9fa;
}

.team-intro h2 {
  
    font-size: 30px;
    font-weight: 400;
    color: #0057C2;
    margin-bottom: 50px;
}

.team-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 50px;
}

.team-stat {
    text-align: center;
    background: white;
    padding: 30px 20px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.team-stat .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a73e8;
    margin-bottom: 10px;
}

.team-stat .stat-label {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
}

.team-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
    text-align: center;
}

/* 合作伙伴 */
.partners {
    padding: 50px 0;
    background: white;
}

.partners h2 {
  
    font-size: 30px;
    font-weight: 400;
    color: #0057C2;
    margin-bottom: 50px;
}

.partners-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.partners-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
}

.partners-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.partner-stat {
    text-align: center;
    background: #f8f9fa;
    padding: 25px 20px;
    border-radius: 12px;
}

.partner-stat .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #1a73e8;
    margin-bottom: 8px;
}

.partner-stat .stat-label {
    font-size: 1rem;
    color: #666;
    font-weight: 500;
}

/* 联系信息 */
.contact-info {
    padding: 20px 0;
    /* background: #f8f9fa; */
}

.contact-info h2 {
  
    font-size: 30px;
    font-weight: 400;
    color: #0057C2;
    margin-bottom: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(auto, 500px));
    gap: 30px;
}

.contact-item {
    text-align: left;
    width: 400px;
}

.contact-item h3 {
    font-size: 16px;
    font-weight: 400;
    color: #333;
    margin-bottom: 10px;
}

.contact-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 地图展示样式 */
.contact-map {
    margin-top: 0;
    text-align: left;
}

.map-image {
    width: 1382px;
    height: 1076px;
    max-width: 100%;
    height: 100%;
}

/* 关于页面响应式设计 */
@media (max-width: 768px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
  
 
    
    
    /* 公司证书响应式样式 */
    .company-certificate1 img,
    .company-certificate2 img,
    .company-certificate3 img {
        max-width: 100%;
    }
    
    .company-certificate1,
    .company-certificate2,
    .company-certificate3 {
        margin-bottom: 20px;
    }
    
    /* .timeline-year {
        min-width: 60px;
        padding: 8px 12px;
        font-size: 0.9rem;
    }
    
    .timeline-content {
        margin: 0;
        max-width: none;
    } */
    
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .team-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .partners-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .map-image {
        width: 100%;
        height: auto;
    }
}

@media (max-width: 480px) {
    .about-intro h2,
    .development-history h2,
    .research-areas h2,
    .team-intro h2,
    .partners h2,
    .contact-info h2 {
        font-size: 2rem;
    }
    
    .team-stats {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        margin-left: 30px;
    }
    
 
}

/* 开发中提示页面样式 */
.development-notice {
    padding: 80px 0;
    background: #fff;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.notice-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.notice-content img {
    width: 400px;
    height: 400px;
    object-fit: contain;
    /* border-radius: 12px;*/
}

.notice-icon {
    margin-bottom: 30px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.notice-content h2 {
    font-size: 30px;
    color: #000;
    margin-bottom: 20px;
    font-weight: 500;
}

.notice-content p {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.notice-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.feature-item {
    background: white;
    padding: 30px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
    font-size: 1.3rem;
    color: #1e293b;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-item p {
    color: #64748b;
    line-height: 1.6;
    font-size: 0.95rem;
}

.back-home {
    margin-top: 40px;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
}

/* 开发中页面响应式设计 */
@media (max-width: 768px) {
    .notice-content h2 {
        font-size: 2rem;
    }
    
    .notice-content > p {
        font-size: 1.1rem;
    }
    
    .notice-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-item {
        padding: 25px 15px;
    }
}