/* PDT联盟网站样式表 */

/* 全局样式 */
:root {
    --primary-blue: #1e6bb8;
    --secondary-blue: #0056b3;
    --light-blue: #e9f2fc;
    --dark-gray: #333;
    --medium-gray: #666;
    --light-gray: #f9f9f9;
    --border-color: #eee;
}

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

body {
    font-family: "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
    line-height: 1.5;
    color: var(--dark-gray);
    background-color: #fff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: var(--primary-blue);
}

ul {
    list-style-type: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* 顶部登录区域 */
.top-bar {
    background-color: var(--primary-blue);
    padding: 8px 0;
    color: #fff;
}

.user-panel {
    display: flex;
    justify-content: flex-end;
}

.login-form {
    display: flex;
    align-items: center;
}

.input-sm {
    padding: 5px 10px;
    margin-right: 10px;
    border: none;
    border-radius: 3px;
    font-size: 12px;
}

.btn-sm {
    padding: 5px 15px;
    background-color: #fff;
    color: var(--primary-blue);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    margin-right: 10px;
}

.btn-text {
    color: #fff;
    font-size: 12px;
}

/* 头部区域 */
.header {
    padding: 20px 0;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

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

.logo {
    margin-right: 20px;
}

.search-box {
    display: flex;
    flex: 0 0 300px;
}

.search-box form {
    display: flex;
    width: 100%;
}

.search-box input {
    flex: 1;
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px 0 0 4px;
}

.search-box button {
    padding: 8px 15px;
    background-color: var(--primary-blue);
    color: #fff;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

/* 主导航 */
.main-nav {
    background-color: var(--primary-blue);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
    position: relative;
}

.nav-list {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -1px;
}

.nav-list li {
    margin: 0 1px;
    position: relative;
}

.nav-list li a {
    display: block;
    padding: 15px 20px;
    color: #fff;
    transition: background-color 0.25s ease;
    font-weight: 500;
    letter-spacing: 0.3px;
    position: relative;
    z-index: 1;
}

.nav-list li a:before {
    display: none;
}

.nav-list li:hover a {
    background-color: rgba(0, 86, 179, 0.5);
}

.nav-list li.active a {
    background-color: rgba(0, 86, 179, 0.7);
}

.nav-list li.active a:before {
    width: 70%;
    opacity: 1;
    background-color: rgba(102, 230, 255, 0.9);
}

.nav-list li a:after {
    display: none;
}

.nav-list li:hover a:after {
    display: none;
}

.nav-list li.active a:after {
    display: none;
}

.nav-list li a:hover,
.nav-list li.active a {
    background-color: var(--secondary-blue);
}

/* 添加下拉箭头图标 */
.nav-list .dropdown > a:after {
    content: "\f107";  /* Font Awesome下箭头图标代码 */
    font-family: "FontAwesome";
    display: inline-block;
    margin-left: 5px;
    font-size: 14px;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.nav-list .dropdown:hover > a:after {
    transform: rotate(180deg);
}

/* 下拉菜单美化 */
.nav-list .dropdown {
    position: relative;
}

.nav-list .dropdown > a .fa {
    margin-left: 6px;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.nav-list .dropdown:hover > a .fa {
    transform: rotate(180deg);
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--primary-blue);
    min-width: 220px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    z-index: 1000;
    border-radius: 0 0 6px 6px;
    border-top: 2px solid var(--secondary-blue);
    overflow: hidden;
    opacity: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.dropdown-content a {
    color: #fff;
    padding: 14px 20px;
    text-decoration: none;
    display: block;
    transition: background-color 0.2s ease;
    font-size: 14px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    padding-left: 30px;
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    background-color: rgba(0, 86, 179, 0.5);
    color: #fff;
}

.dropdown-content a:before {
    content: "";
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.dropdown-content a:hover:before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: rgb(111, 226, 255);
    opacity: 1;
}

.nav-list .dropdown:hover .dropdown-content {
    display: block;
    animation: fadeIn 0.25s ease forwards;
}

/* 移动菜单按钮 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 10px 15px;
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1010;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    color: rgba(255, 255, 255, 0.8);
}

/* 移动端导航适配 */
@media screen and (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--primary-blue);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        display: none;
        overflow: hidden;
        max-height: 0;
        transition: max-height 0.3s ease;
    }
    
    .nav-list.show {
        display: flex;
        max-height: 2000px;
    }
    
    .nav-list li {
        margin-right: 0;
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-list li:last-child {
        border-bottom: none;
    }
    
    .nav-list li a {
        padding: 12px 20px;
    }
    
    .nav-list .dropdown > a .fa {
        margin-left: 8px;
        transition: transform 0.3s ease;
    }
    
    .nav-list .dropdown.active > a .fa {
        transform: rotate(180deg);
    }
    
    /* 移动端下拉箭头样式调整 */
    .nav-list .dropdown > a:after {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .nav-list .dropdown.active > a:after {
        transform: translateY(-50%) rotate(180deg);
    }
}

/* 轮播图区域 */
.banner {
    margin-bottom: 30px;
}

.banner-swiper {
    position: relative;
}

.swiper-slide {
    position: relative;
}

.banner-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

/* 轮播图占位符样式 */
.banner-placeholder {
    width: 100%;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.banner-placeholder:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

.placeholder-content {
    max-width: 80%;
    z-index: 2;
    padding: 40px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.placeholder-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    letter-spacing: 2px;
}

.placeholder-content .subtitle {
    font-size: 20px;
    margin-bottom: 25px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.placeholder-content .event-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 16px;
}

.placeholder-content .event-info span {
    display: flex;
    align-items: center;
}

.placeholder-content .event-info i {
    margin-right: 8px;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    color: #fff;
}

.slide-content h2 {
    font-size: 28px;
    margin-bottom: 10px;
}

.swiper-button-next, 
.swiper-button-prev {
    color: #fff;
}

.swiper-button-next:after, 
.swiper-button-prev:after {
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

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

/* 主要内容区域 */
.main-content {
    padding: 20px 0 40px;
}

/* 工作动态区域样式 */
.news-section {
    padding: 40px 0;
    background-color: var(--light-gray);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 10px;
}

.section-header h2 {
    font-size: 24px;
    color: var(--primary-blue);
    margin: 0;
    position: relative;
}

.more-link {
    color: var(--medium-gray);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.3s;
}

.more-link:hover {
    color: var(--primary-blue);
}

.news-list {
    margin-bottom: 20px;
}

.news-item {
    display: flex;
    margin-bottom: 20px;
    background-color: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
    transform: translateY(-3px);
}

.news-date-block {
    width: 100px;
    background-color: var(--primary-blue);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 15px 0;
}

.news-month-day {
    font-size: 18px;
    font-weight: bold;
}

.news-year {
    font-size: 14px;
    margin-top: 5px;
}

.news-content {
    flex: 1;
    padding: 15px 20px;
    position: relative;
}

.news-tag {
    display: inline-block;
    background-color: var(--light-blue);
    color: var(--primary-blue);
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.news-title {
    display: block;
    color: var(--dark-gray);
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
    text-decoration: none;
    line-height: 1.5;
    transition: color 0.3s;
}

.news-title:hover {
    color: var(--primary-blue);
}

.news-summary {
    color: var(--medium-gray);
    font-size: 14px;
    line-height: 1.6;
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.category-tag {
    display: inline-block;
    padding: 6px 15px;
    margin: 0 8px 8px 0;
    color: var(--medium-gray);
    background-color: #f0f0f0;
    border-radius: 20px;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s;
}

.category-tag:hover, .category-tag.active {
    background-color: var(--primary-blue);
    color: #fff;
}

/* 线上展厅区域 */
.exhibition-section {
    padding: 40px 0;
}

.exhibition-nav {
    margin-bottom: 30px;
}

.exhibition-tabs {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
    border-bottom: 2px solid #eee;
}

.exhibition-tabs li {
    margin: 0 20px;
}

.exhibition-tabs li a {
    display: flex;
    align-items: center;
    padding: 12px 0;
    color: #666;
    text-decoration: none;
    font-size: 16px;
    position: relative;
    transition: color 0.3s;
}

.exhibition-tabs li a i {
    margin-right: 8px;
}

.exhibition-tabs li.active a {
    color: var(--primary-blue);
}

.exhibition-tabs li.active a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-blue);
}

.exhibition-section {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.exhibition-section.active {
    display: block;
    opacity: 1;
}

/* 产品展示样式 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.product-item {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.product-image {
    position: relative;
    overflow: hidden;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.btn-view {
    padding: 8px 20px;
    background: var(--primary-blue);
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.btn-view:hover {
    background: #1565C0;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    margin: 0 0 10px;
    font-size: 18px;
    color: #333;
}

.product-info p {
    margin: 0 0 15px;
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

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

.product-tags span {
    padding: 4px 12px;
    background: #f0f4f8;
    color: var(--primary-blue);
    border-radius: 4px;
    font-size: 12px;
}

/* 解决方案展示样式 */
.solution-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.solution-item {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.solution-content {
    padding: 20px;
}

.solution-title {
    margin: 0 0 15px;
    font-size: 20px;
    color: #333;
}

.solution-desc p {
    margin: 0 0 15px;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.solution-features {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.solution-features li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 14px;
    color: #666;
}

.solution-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
}

/* 市场活动展示样式 */
.activity-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.activity-item {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.activity-info {
    padding: 20px;
}

.activity-date {
    color: var(--primary-blue);
    font-size: 14px;
    margin-bottom: 10px;
}

.activity-title {
    margin: 0 0 10px;
    font-size: 18px;
    color: #333;
}

.activity-desc {
    margin: 0 0 15px;
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.btn-more {
    display: inline-block;
    padding: 8px 24px;
    background: var(--primary-blue);
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.btn-more:hover {
    background: #1565C0;
    color: #fff;
}

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

@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-showcase,
    .activity-showcase {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .exhibition-tabs li {
        margin: 0 10px;
    }
}

/* 解决方案网格样式 */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.solution-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.solution-image .image-placeholder {
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    transition: transform 0.3s;
}

.solution-info {
    padding: 20px;
}

.solution-name {
    font-size: 18px;
    margin: 0 0 10px;
    color: var(--dark-gray);
}

.solution-brief {
    font-size: 14px;
    color: var(--medium-gray);
    margin: 0;
    line-height: 1.5;
}

/* 活动网格样式 */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.activity-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.activity-image .image-placeholder {
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    transition: transform 0.3s;
}

.activity-info {
    padding: 20px;
}

.activity-date {
    font-size: 14px;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.activity-name {
    font-size: 18px;
    margin: 0 0 10px;
    color: var(--dark-gray);
}

.activity-brief {
    font-size: 14px;
    color: var(--medium-gray);
    margin: 0;
    line-height: 1.5;
}

/* 查看更多按钮样式 */
.text-center {
    text-align: center;
}

.btn-more {
    display: inline-block;
    padding: 10px 30px;
    background-color: #fff;
    color: var(--primary-blue);
    text-decoration: none;
    border: 1px solid var(--primary-blue);
    border-radius: 25px;
    font-size: 16px;
    transition: all 0.3s;
}

.btn-more:hover {
    background-color: var(--primary-blue);
    color: #fff;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-grid,
    .activity-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .exhibition-tabs {
        flex-direction: column;
        border-radius: 8px;
    }
    
    .exhibition-tabs li a {
        border-radius: 0;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .product-image .image-placeholder,
    .solution-image .image-placeholder,
    .activity-image .image-placeholder {
        height: 180px;
    }
}

/* 成果展示区域 */
.achievements-section {
    padding: 40px 0;
    background-color: var(--light-gray);
}

.achievements-top-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.achievements-left {
    flex: 0 0 calc(50% - 15px);
}

.achievements-right {
    flex: 0 0 calc(50% - 15px);
}

.video-container {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.15);
    margin-bottom: 20px;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 60px;
    color: #fff;
    background-color: rgba(30, 107, 184, 0.7);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.9;
    transition: all 0.3s;
    cursor: pointer;
}

.play-button:hover {
    opacity: 1;
    background-color: rgba(30, 107, 184, 0.9);
    transform: translate(-50%, -50%) scale(1.05);
}

.play-button i {
    margin-left: 5px;
}

.video-title {
    padding: 15px 0;
}

.video-title h3 {
    color: var(--primary-blue);
    font-size: 20px;
    margin-bottom: 10px;
}

.video-title p {
    color: var(--medium-gray);
    line-height: 1.6;
}

.section-subtitle {
    font-size: 18px;
    color: var(--primary-blue);
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.section-subtitle:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-blue);
}

.achievement-data-wrapper {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.achievement-data {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px;
}

.data-item {
    flex: 0 0 calc(50% - 20px);
    text-align: center;
    margin: 10px;
    padding: 20px 10px;
    background-color: var(--light-blue);
    border-radius: 8px;
    transition: all 0.3s;
}

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

.data-value {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 5px;
    position: relative;
    display: inline-block;
}

.data-plus {
    font-size: 24px;
    position: relative;
    top: -8px;
}

.data-label {
    color: var(--medium-gray);
    font-size: 16px;
    font-weight: 500;
}

.download-section {
    width: 100%;
}

.download-links {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    overflow: hidden;
}

.download-header {
    padding: 15px;
    background-color: var(--primary-blue);
    color: #fff;
    font-size: 18px;
    text-align: center;
    font-weight: 500;
}

.download-header i {
    margin-right: 8px;
}

.download-list {
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}

.download-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    margin-bottom: 0;
    color: var(--dark-gray);
    text-decoration: none;
    transition: all 0.3s;
    border-radius: 0;
    border-bottom: 1px solid var(--light-blue);
    border-right: 1px solid var(--light-blue);
    flex: 0 0 50%;
}

.download-item:nth-child(2n) {
    border-right: none;
}

.download-item:nth-last-child(1),
.download-item:nth-last-child(2) {
    border-bottom: none;
}

.download-item:hover {
    background-color: var(--light-blue);
    color: var(--primary-blue);
}

.download-item i {
    font-size: 28px;
    margin-right: 15px;
    color: #e74c3c;
    flex: 0 0 auto;
}

.download-info {
    flex: 1;
}

.download-title {
    display: block;
    font-weight: 500;
    margin-bottom: 3px;
}

.download-desc {
    display: block;
    font-size: 14px;
    color: var(--medium-gray);
}

/* 产品认证区域 */
.certification-section {
    padding: 50px 0;
    background-color: #f9fbff;
    position: relative;
    overflow: hidden;
}

.certification-section::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(30, 144, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 0;
}

.certification-content {
    display: flex;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.certification-intro {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    background-color: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    width: 100%;
}

.certification-intro:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

/* 同时支持cert-image和certification-image类 */
.cert-image, 
.certification-image {
    flex: 0 0 250px;
    margin-right: 30px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.cert-image:hover, 
.certification-image:hover {
    transform: scale(1.03);
}

/* 同时支持cert-text和certification-text类 */
.cert-text, 
.certification-text {
    flex: 1;
}

.certification-text h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 22px;
    font-weight: 600;
    position: relative;
    padding-bottom: 12px;
}

.certification-text h3::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 3px;
}

.cert-text p, 
.certification-text p {
    margin-bottom: 15px;
    line-height: 1.7;
    color: #555;
}

.certification-text .btn-more {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--primary-blue);
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.certification-text .btn-more:hover {
    background-color: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 107, 184, 0.2);
}

/* 认证流程样式改进 */
.certification-process {
    background-color: #fff;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
    width: 100%;
}

.certification-process h3 {
    color: var(--primary-blue);
    margin-bottom: 25px;
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    position: relative;
    padding-bottom: 12px;
}

.certification-process h3::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 3px;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 30px;
    gap: 15px;
}

.process-step {
    flex: 0 0 calc(20% - 15px);
    text-align: center;
    background-color: #f8fbff;
    border-radius: 10px;
    padding: 25px 15px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
    position: relative;
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    background-color: #fff;
}

/* 步骤之间的连接箭头 */
.process-step:not(:last-child)::after {
    content: "\f054";
    font-family: FontAwesome;
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-blue);
    font-size: 16px;
    z-index: 1;
}

.step-number {
    display: inline-flex;
    width: 60px;
    height: 60px;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: #fff;
    font-weight: bold;
    font-size: 22px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(30, 107, 184, 0.25);
    transition: all 0.3s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(30, 107, 184, 0.35);
}

.step-title {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-blue);
    font-size: 17px;
}

.step-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .process-step {
        flex: 0 0 calc(33.33% - 15px);
        margin-bottom: 20px;
    }
    
    .process-step:nth-child(3n)::after {
        display: none;
    }
}

@media (max-width: 991px) {
    .cert-intro, 
    .certification-process,
    .certification-standard,
    .product-item {
        flex-direction: column;
    }
    
    .cert-image,
    .certification-image,
    .product-image {
        margin-right: 0;
        margin-bottom: 20px;
        width: 100%;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .process-step {
        flex: 0 0 calc(50% - 15px);
    }
    
    .process-step:nth-child(2n)::after {
        display: none;
    }
    
    .standard-item {
        flex: 0 0 100%;
    }
}

/* 技术标准样式改进 */
.certification-standard {
    background-color: #f8fbff;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.standard-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
}

.standard-item {
    flex: 0 0 calc(50% - 10px);
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.standard-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.standard-item h4 {
    color: var(--primary-blue);
    margin-bottom: 10px;
    font-weight: 600;
}

.standard-item p {
    margin-bottom: 15px;
    color: #555;
}

.download-standard {
    display: inline-block;
    padding: 6px 15px;
    background-color: #e8f0f8;
    color: var(--primary-blue);
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 14px;
}

.download-standard:hover {
    background-color: var(--primary-blue);
    color: #fff;
}

.download-standard i {
    margin-right: 5px;
}

/* 认证产品列表样式改进 */
.certification-filter {
    background-color: #f8fbff;
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.filter-label {
    font-weight: 500;
    color: #444;
    margin-right: 10px;
}

.certification-filter a {
    padding: 6px 15px;
    color: #666;
    text-decoration: none;
    border-radius: 20px;
    margin-right: 5px;
    margin-bottom: 5px;
    transition: all 0.3s;
    font-size: 14px;
}

.certification-filter a:hover {
    background-color: #e8f0f8;
    color: var(--primary-blue);
}

.certification-filter a.active {
    background-color: var(--primary-blue);
    color: #fff;
}

.certified-product-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.product-item {
    display: flex;
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.product-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.product-image {
    flex: 0 0 220px;
    margin-right: 25px;
}

.product-info {
    flex: 1;
}

.product-name {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 20px;
    font-weight: 600;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 15px;
    font-size: 14px;
    color: #666;
}

.product-meta span {
    margin-right: 20px;
    margin-bottom: 5px;
}

.product-features {
    color: #555;
    line-height: 1.6;
}

/* 申请认证区域样式改进 */
.certification-apply {
    background-color: #f8fbff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.apply-buttons {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--secondary-blue);
}

.btn-secondary {
    background-color: #e8f0f8;
    color: var(--primary-blue);
}

.btn-secondary:hover {
    background-color: #d8e5f0;
}

.btn-primary i, .btn-secondary i {
    margin-right: 8px;
}

.certification-contact {
    background-color: #fff;
    border-radius: 6px;
    padding: 15px 20px;
    margin-top: 20px;
}

.certification-contact p {
    margin-bottom: 8px;
}

/* 响应式调整 */
@media (max-width: 991px) {
    .cert-intro, 
    .certification-process,
    .certification-standard,
    .product-item {
        flex-direction: column;
    }
    
    .cert-image,
    .certification-image,
    .product-image {
        margin-right: 0;
        margin-bottom: 20px;
        width: 100%;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .process-step {
        flex: 0 0 calc(50% - 15px);
    }
    
    .process-step:nth-child(2n)::after {
        display: none;
    }
    
    .standard-item {
        flex: 0 0 100%;
    }
}

@media (max-width: 767px) {
    .header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 20px;
    }
    
    .search-box {
        width: 100%;
    }
    
    .nav-list li {
        flex: 0 0 50%;
        margin-right: 0;
    }
    
    .nav-list li a {
        text-align: center;
    }
    
    .category-box {
        flex: 0 0 100%;
    }
    
    .achievement-data {
        margin: 0;
    }
    
    .data-item {
        flex: 0 0 100%;
        margin: 5px 0;
    }
    
    .download-item {
        flex: 0 0 100%;
        border-right: none;
        padding: 12px 15px;
    }
    
    .download-item:nth-last-child(2) {
        border-bottom: 1px solid var(--light-blue);
    }
    
    .download-item i {
        font-size: 20px;
        margin-right: 10px;
    }
    
    .download-title {
        font-size: 14px;
    }
    
    .download-desc {
        font-size: 12px;
    }
    
    .certification-intro {
        flex-direction: column;
    }
    
    .certification-image {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .member-logo {
        flex: 0 0 50%;
    }
    
    .footer-section {
        flex: 0 0 100%;
    }
    
    /* 轮播图占位符在手机上的样式 */
    .banner-placeholder {
        height: 300px;
    }
    
    .placeholder-content {
        padding: 20px;
        max-width: 95%;
    }
    
    .placeholder-content h2 {
        font-size: 24px;
        margin-bottom: 10px;
        letter-spacing: 1px;
    }
    
    .placeholder-content .subtitle {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .placeholder-content .event-info {
        flex-direction: column;
        gap: 8px;
        font-size: 14px;
    }
}

/* 图片占位符通用样式 */
.image-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--medium-gray);
    position: relative;
    overflow: hidden;
    background-color: #f0f5f9;
    border-radius: 8px;
    border: 1px dashed #ccc;
    width: 100%;
    height: 300px;
}

.image-placeholder:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231e6bb8' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

.image-placeholder span {
    z-index: 1;
    font-size: 16px;
    padding: 15px 30px;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 特定图片占位符大小 */
.about-image .image-placeholder {
    height: 300px;
}

.organization-chart .image-placeholder {
    height: 350px;
    margin-bottom: 0;
}

.product-image .image-placeholder {
    height: 220px;
}

.solution-image .image-placeholder {
    height: 280px;
}

.cert-image .image-placeholder {
    height: 280px;
}

/* 响应式设计修复 */
@media (max-width: 768px) {
    .product-image .image-placeholder {
        height: 180px;
    }

    .solution-image .image-placeholder {
        height: 200px;
    }
    
    .cert-image .image-placeholder {
        height: 200px;
    }
    
    .about-image .image-placeholder {
        height: 250px;
    }
    
    .organization-chart .image-placeholder {
        height: 250px;
    }
}

/* 组织介绍页面样式 */
.page-header {
    background-color: var(--light-blue);
    padding: 30px 0;
    margin-bottom: 40px;
    border-bottom: 1px solid #e3e9f4;
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-blue);
}

.breadcrumb {
    font-size: 14px;
    color: var(--medium-gray);
}

.breadcrumb a {
    color: var(--medium-gray);
}

.breadcrumb a:hover {
    color: var(--primary-blue);
}

.about-content {
    margin-bottom: 50px;
}

.about-content section {
    margin-bottom: 50px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.about-content section:last-child {
    border-bottom: none;
}

.section-title {
    position: relative;
    font-size: 28px;
    color: var(--primary-blue);
    margin-bottom: 30px;
    padding-bottom: 15px;
    font-weight: 700;
    text-align: center;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-blue);
}

/* 联盟简介样式 */
.about-intro {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    margin: 30px 0;
}

.about-image {
    flex: 0 0 450px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.about-image img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.3s;
}

.about-image:hover img {
    transform: scale(1.03);
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--medium-gray);
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* 联盟宗旨样式 */
.mission-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    margin-top: 30px;
}

.mission-item {
    display: flex;
    align-items: flex-start;
    background-color: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    width: calc(50% - 15px);
    min-width: 300px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.mission-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.mission-icon {
    flex: 0 0 60px;
    height: 60px;
    background-color: var(--light-blue);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 20px;
}

.mission-icon i {
    font-size: 24px;
    color: var(--primary-blue);
}

.mission-text {
    flex: 1;
}

.mission-text h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-blue);
}

.mission-text p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--medium-gray);
}

/* 组织架构样式 */
.organization-chart {
    margin: 30px 0;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.organization-description {
    margin-top: 25px;
    background-color: var(--light-blue);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(30, 107, 184, 0.1);
}

.organization-description p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 15px;
    color: var(--medium-gray);
}

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

/* 发展历程样式 - 新版横向时间线 */
.history-timeline {
    position: relative;
    margin: 50px 0;
    padding: 20px 0;
}

.history-line {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--light-blue);
    transform: translateY(-50%);
}

.history-items {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    position: relative;
    overflow-x: auto;
    padding: 20px 10px;
}

.history-item {
    flex: 0 0 200px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 10px;
    padding: 0 10px;
}

.history-year {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 20px;
    padding: 8px 15px;
    background-color: #fff;
    border-radius: 20px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    z-index: 2;
}

.history-dot {
    width: 20px;
    height: 20px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    margin: 10px 0;
    z-index: 2;
    box-shadow: 0 0 0 5px rgba(30, 107, 184, 0.2);
}

.history-content {
    text-align: center;
    background-color: #fff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-top: 20px;
    width: 100%;
}

.history-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-gray);
}

.history-content p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--medium-gray);
}

@media (max-width: 991px) {
    .history-items {
        flex-wrap: nowrap;
        justify-content: flex-start;
        overflow-x: auto;
        padding: 20px 0;
        scrollbar-width: thin;
        scrollbar-color: var(--primary-blue) var(--light-blue);
    }
    
    .history-items::-webkit-scrollbar {
        height: 6px;
    }
    
    .history-items::-webkit-scrollbar-track {
        background: var(--light-blue);
        border-radius: 10px;
    }
    
    .history-items::-webkit-scrollbar-thumb {
        background-color: var(--primary-blue);
        border-radius: 10px;
    }
    
    .history-item {
        flex: 0 0 180px;
    }
}

@media (max-width: 767px) {
    .history-item {
        flex: 0 0 160px;
    }
    
    .history-year {
        font-size: 16px;
        padding: 6px 12px;
    }
    
    .history-content {
        padding: 12px;
    }
    
    .history-content h3 {
        font-size: 15px;
    }
    
    .history-content p {
        font-size: 13px;
    }
}

/* 联盟优势样式 */
.advantage-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    margin-top: 30px;
}

.advantage-item {
    flex: 1;
    min-width: 250px;
    background-color: #fff;
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.advantage-icon {
    width: 80px;
    height: 80px;
    background-color: var(--light-blue);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.advantage-icon i {
    font-size: 30px;
    color: var(--primary-blue);
}

.advantage-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.advantage-item p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--medium-gray);
}

/* 响应式适配 */
@media (max-width: 991px) {
    .about-intro {
        flex-direction: column;
        gap: 25px;
    }
    
    .about-image {
        flex: 0 0 100%;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .mission-item {
        width: 100%;
    }
}

@media (max-width: 767px) {
    .page-header h1 {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .mission-item {
        padding: 20px;
    }
    
    .mission-icon {
        flex: 0 0 50px;
        height: 50px;
    }
    
    .advantage-content {
        gap: 20px;
    }
    
    .advantage-item {
        min-width: 100%;
    }
}

/* 工作动态页面样式 */
.content-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin: 40px 0;
}

/* 左侧导航 */
.side-nav {
    flex: 0 0 250px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 30px;
}

.side-nav-title {
    padding: 15px 20px;
    background-color: var(--primary-blue);
    color: #fff;
    font-size: 18px;
    font-weight: 500;
}

.side-nav-list {
    padding: 10px 0;
}

.side-nav-list li {
    padding: 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s;
}

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

.side-nav-list li a {
    display: block;
    padding: 12px 20px;
    color: var(--dark-gray);
    transition: all 0.3s;
    font-size: 15px;
}

.side-nav-list li:hover {
    background-color: var(--light-blue);
}

.side-nav-list li:hover a {
    color: var(--primary-blue);
    padding-left: 25px;
}

.side-nav-list li.active {
    background-color: var(--light-blue);
}

.side-nav-list li.active a {
    color: var(--primary-blue);
    font-weight: 500;
    border-left: 3px solid var(--primary-blue);
    padding-left: 17px;
}

/* 主要内容区域 */
.main-container {
    flex: 1;
    min-width: 300px;
}

/* 年份筛选 */
.news-filter {
    background-color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.filter-label {
    color: var(--medium-gray);
    margin-right: 15px;
    font-size: 15px;
}

.news-filter a {
    display: inline-block;
    padding: 6px 15px;
    margin: 5px;
    border-radius: 20px;
    color: var(--medium-gray);
    background-color: #f5f5f5;
    transition: all 0.3s;
    text-decoration: none;
    font-size: 14px;
}

.news-filter a:hover {
    background-color: var(--light-blue);
    color: var(--primary-blue);
}

.news-filter a.active {
    background-color: var(--primary-blue);
    color: #fff;
}

/* 新闻列表 */
.news-list-page {
    margin-bottom: 40px;
}

.news-item-large {
    display: flex;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.06);
    margin-bottom: 25px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-item-large:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.news-date {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    min-width: 100px;
    background-color: var(--primary-blue);
    color: #fff;
}

.date-day {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
}

.date-month {
    font-size: 14px;
    margin-top: 8px;
}

.news-content {
    padding: 25px;
    flex: 1;
}

.news-title {
    margin: 0 0 15px;
    font-size: 20px;
}

.news-title a {
    color: var(--dark-gray);
    text-decoration: none;
    transition: color 0.3s;
}

.news-title a:hover {
    color: var(--primary-blue);
}

.news-summary {
    color: var(--medium-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    display: inline-block;
    color: var(--primary-blue);
    text-decoration: none;
    margin-bottom: 15px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
}

.read-more:hover {
    color: var(--secondary-blue);
    text-decoration: underline;
}

.news-meta {
    display: flex;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--medium-gray);
    border-top: 1px solid #eee;
    padding-top: 12px;
}

.news-tags, .news-views {
    margin-right: 20px;
}

.news-meta i {
    margin-right: 5px;
    color: var(--primary-blue);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    margin-bottom: 20px;
}

.pagination a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    margin: 0 5px;
    color: #666;
    text-decoration: none;
    border-radius: 4px;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.pagination a:hover {
    background-color: #e8f0f8;
    color: var(--primary-blue);
}

.pagination a.active {
    background-color: var(--primary-blue);
    color: #fff;
}

/* 响应式适配 */
@media (max-width: 991px) {
    .content-wrapper {
        flex-direction: column;
    }
    
    .side-nav {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: 25px;
    }
    
    .side-nav-list {
        display: flex;
        flex-wrap: wrap;
        padding: 10px;
    }
    
    .side-nav-list li {
        border-bottom: none;
        margin: 5px;
    }
    
    .side-nav-list li a {
        padding: 8px 15px;
        border-radius: 20px;
        background-color: #f5f5f5;
    }
    
    .side-nav-list li:hover a {
        padding-left: 15px;
    }
    
    .side-nav-list li.active a {
        border-left: none;
        padding-left: 15px;
        background-color: var(--light-blue);
    }
}

@media (max-width: 767px) {
    .news-item-large {
        flex-direction: column;
    }
    
    .news-date {
        flex-direction: row;
        justify-content: flex-start;
        align-items: center;
        padding: 15px;
    }
    
    .date-day {
        font-size: 24px;
        margin-right: 5px;
    }
    
    .date-month {
        margin-top: 0;
    }
    
    .news-content {
        padding: 20px;
    }
    
    .news-title {
        font-size: 18px;
    }
}

/* 热门标签和热门文章 */
.featured-content {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.tag-cloud, .popular-articles {
    flex: 1;
    min-width: 300px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.06);
    padding: 20px;
}

.section-title-small {
    font-size: 16px;
    color: var(--primary-blue);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--light-blue);
    font-weight: 600;
}

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

.tags a {
    display: inline-block;
    padding: 5px 12px;
    background-color: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 20px;
    font-size: 13px;
    transition: all 0.3s;
    text-decoration: none;
}

.tags a:hover {
    background-color: var(--primary-blue);
    color: #fff;
    transform: translateY(-2px);
}

.article-list {
    list-style: none;
    padding: 0;
}

.article-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.article-list a {
    flex: 1;
    color: var(--dark-gray);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    transition: all 0.3s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.article-list a i {
    color: var(--primary-blue);
    margin-right: 8px;
}

.article-list a:hover {
    color: var(--primary-blue);
}

.article-list .views {
    font-size: 12px;
    color: var(--medium-gray);
    background-color: #f5f5f5;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 10px;
}

@media (max-width: 767px) {
    .featured-content {
        flex-direction: column;
    }
    
    .tag-cloud, .popular-articles {
        flex: 0 0 100%;
    }
    
    .article-list a {
        max-width: 240px;
    }
}

/* 会员单位展示 */
.members-section {
    padding: 40px 0;
    background-color: var(--light-gray);
}

.members-logo-wall {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.member-logo {
    flex: 0 0 25%;
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 底部区域 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 60px 0 20px;
    position: relative;
}

.footer:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0052D4, #4364F7, #6FB1FC);
}

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

.footer-section {
    flex: 0 0 30%;
    padding: 0 15px;
    margin-bottom: 20px;
}

.footer-title {
    font-size: 20px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
    color: #fff;
    font-weight: 500;
}

.footer-title:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-blue);
}

.footer-section p {
    color: #bbb;
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 14px;
}

.contact-info {
    margin-top: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    color: #bbb;
}

.contact-item i {
    margin-right: 12px;
    margin-top: 4px;
    color: var(--primary-blue);
    font-size: 16px;
    width: 16px;
    text-align: center;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    margin-top: 5px;
}

.quick-links a {
    flex: 0 0 50%;
    color: #bbb;
    padding: 8px 0;
    transition: all 0.3s;
    position: relative;
    padding-left: 15px;
    font-size: 14px;
}

.quick-links a:before {
    content: "›";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-size: 18px;
    line-height: 14px;
}

.quick-links a:hover {
    color: var(--primary-blue);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #999;
    font-size: 14px;
}

/* 二维码区域样式 */
.footer-qrcode {
    text-align: center;
}

.footer-qrcode .image-placeholder {
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.1);
}

.footer-qrcode p {
    margin-top: 10px;
    text-align: left;
    color: #bbb;
    font-size: 13px;
}

@media (max-width: 991px) {
    .footer-section {
        flex: 0 0 50%;
    }
    
    .footer-section:last-child {
        flex: 0 0 100%;
        display: flex;
        justify-content: center;
    }
    
    .footer-qrcode {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    /* 恢复其他媒体查询样式 */
    .category-box {
        flex: 0 0 calc(50% - 20px);
    }
    
    .achievements-top-content {
        gap: 20px;
    }
    
    .achievements-left, 
    .achievements-right {
        flex: 0 0 100%;
    }
    
    .achievements-left {
        margin-bottom: 0;
    }
    
    .video-container {
        max-height: 350px;
    }
    
    .data-item {
        padding: 15px 5px;
    }
    
    .data-value {
        font-size: 30px;
    }
    
    .download-item {
        padding: 15px 10px;
    }
    
    .download-item i {
        font-size: 24px;
        margin-right: 10px;
    }
    
    /* 轮播图占位符在平板上的样式 */
    .placeholder-content {
        padding: 30px;
        max-width: 90%;
    }
    
    .placeholder-content h2 {
        font-size: 32px;
    }
    
    .placeholder-content .subtitle {
        font-size: 18px;
        margin-bottom: 20px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 20px;
        text-align: left;
        margin-bottom: 30px;
    }
    
    .timeline-item:nth-child(odd) {
        float: none;
        text-align: left;
    }
    
    .timeline::after {
        left: 40px;
        height: calc(100% - 20px);
    }
    
    .timeline-item:nth-child(odd) .timeline-dot {
        left: 30px;
        right: auto;
    }
    
    .timeline-item:nth-child(even) .timeline-dot {
        left: 30px;
    }
}

@media (max-width: 576px) {
    .footer-section {
        flex: 0 0 100%;
    }
    
    .quick-links a {
        flex: 0 0 100%;
    }
}

/* 联系我们页面专属样式 */
.contact-banner {
    margin-bottom: 30px;
}

.contact-banner .image-placeholder {
    width: 100%;
    height: 300px;
    background-color: #f5f7fa;
    border: 2px dashed #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #999;
    font-size: 16px;
}

.contact-section,
.map-section,
.message-section,
.department-section {
    margin-bottom: 40px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.08);
    padding: 25px;
    border-radius: 5px;
    background-color: #fff;
}

.contact-title {
    color: #0056b3;
    font-size: 22px;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e7eaee;
    position: relative;
}

.contact-title:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background-color: #0056b3;
}

.contact-cards {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.contact-card {
    flex: 1 1 calc(25% - 30px);
    margin: 0 15px 20px;
    padding: 20px;
    background-color: #f8fafc;
    border-radius: 5px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    align-items: flex-start;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.card-icon {
    flex: 0 0 50px;
    height: 50px;
    background-color: #e6f0ff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
    color: #0056b3;
    font-size: 20px;
}

.card-content h3 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
    font-size: 18px;
}

.card-content p {
    margin: 5px 0;
    color: #555;
    line-height: 1.5;
}

/* 地图部分样式 */
.map-placeholder {
    width: 100%;
    height: 400px;
    background-color: #f5f7fa;
    border: 2px dashed #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #999;
    font-size: 16px;
    margin-bottom: 20px;
}

.transport-info {
    background-color: #f8fafc;
    padding: 15px;
    border-radius: 5px;
}

.transport-item {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

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

.transport-item i {
    flex: 0 0 30px;
    height: 30px;
    background-color: #e6f0ff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 10px;
    color: #0056b3;
    font-size: 14px;
}

/* 表单部分样式 */
.contact-form {
    background-color: #f8fafc;
    padding: 25px;
    border-radius: 5px;
}

.form-row {
    display: flex;
    margin: 0 -10px;
    margin-bottom: 15px;
}

.form-row .form-group {
    flex: 1;
    margin: 0 10px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #0056b3;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 86, 179, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.required {
    color: #e74c3c;
}

.captcha-container {
    display: flex;
    align-items: center;
}

.captcha-container input {
    width: 120px;
    margin-right: 10px;
}

.captcha-placeholder {
    width: 120px;
    height: 40px;
    background-color: #e6f0ff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    color: #666;
    margin-right: 10px;
}

.refresh-captcha {
    color: #0056b3;
    font-size: 14px;
    text-decoration: none;
}

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

.form-actions {
    margin-top: 20px;
    display: flex;
    justify-content: flex-start;
}

.btn-submit,
.btn-reset {
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit {
    background-color: #0056b3;
    color: white;
    margin-right: 15px;
}

.btn-submit:hover {
    background-color: #004494;
}

.btn-reset {
    background-color: #f1f1f1;
    color: #333;
}

.btn-reset:hover {
    background-color: #e6e6e6;
}

/* 部门联系方式表格样式 */
.responsive-table {
    overflow-x: auto;
}

.department-table {
    width: 100%;
    border-collapse: collapse;
}

.department-table th,
.department-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.department-table th {
    background-color: var(--light-blue);
    font-weight: 600;
    text-align: left;
}

.department-table tbody tr:hover {
    background-color: #f9f9f9;
}

.department-table tbody tr:last-child td {
    border-bottom: none;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .contact-card {
        flex: 0 0 50%;
    }
}

@media (max-width: 768px) {
    .contact-card {
        flex: 0 0 100%;
        margin-bottom: 20px;
    }
    
    .form-row {
        flex-direction: column;
        margin-bottom: 0;
    }
    
    .form-row .form-group {
        flex: 0 0 100%;
        margin-bottom: 15px;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-blue);
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 99;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-blue);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.back-to-top i {
    line-height: 40px;
    text-align: center;
}

/* 文章详情页样式 */
.article-detail {
    margin-bottom: 40px;
}

.article-header {
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.article-title {
    font-size: 24px;
    line-height: 1.4;
    margin-bottom: 15px;
    color: var(--dark-gray);
    font-weight: 700;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    color: var(--medium-gray);
    font-size: 14px;
}

.article-meta span {
    margin-right: 20px;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
}

.article-meta i {
    margin-right: 5px;
    color: var(--primary-blue);
}

.article-content {
    line-height: 1.8;
    color: var(--dark-gray);
}

.article-content p {
    margin-bottom: 20px;
}

.article-content h3 {
    font-size: 20px;
    margin: 30px 0 20px;
    color: var(--dark-gray);
    font-weight: 600;
}

.article-image-placeholder {
    width: 100%;
    height: 400px;
    background-color: #f0f5f9;
    border: 2px dashed #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    color: #999;
    font-size: 16px;
    border-radius: 4px;
}

.share-buttons {
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.share-buttons span {
    margin-right: 15px;
    color: var(--medium-gray);
}

.share-buttons a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    background-color: #f5f5f5;
    color: var(--medium-gray);
    border-radius: 50%;
    margin-right: 10px;
    transition: all 0.3s;
}

.share-buttons a:hover {
    background-color: var(--primary-blue);
    color: white;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-nav a {
    color: var(--medium-gray);
    transition: color 0.3s;
    max-width: 45%;
}

.article-nav a:hover {
    color: var(--primary-blue);
}

.nav-prev, .nav-next {
    display: flex;
    align-items: center;
}

.nav-prev i {
    margin-right: 8px;
}

.nav-next i {
    margin-left: 8px;
}

.related-articles {
    margin-top: 40px;
}

.related-articles h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--dark-gray);
    font-weight: 600;
    position: relative;
    padding-left: 15px;
}

.related-articles h3:before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    height: 16px;
    width: 4px;
    background-color: var(--primary-blue);
    border-radius: 2px;
}

.related-list {
    padding-left: 0;
}

.related-list li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--border-color);
}

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

.related-list a {
    color: var(--dark-gray);
    transition: color 0.3s;
    display: block;
    padding: 8px 0 8px 15px;
    position: relative;
    line-height: 1.5;
}

.related-list a:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
}

.related-list a:hover {
    color: var(--primary-blue);
}

.related-list .views {
    font-size: 12px;
    color: var(--medium-gray);
    background-color: #f5f5f5;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 10px;
}

@media (max-width: 767px) {
    .article-title {
        font-size: 20px;
    }
    
    .article-meta {
        font-size: 12px;
    }
    
    .article-meta span {
        margin-right: 12px;
    }
    
    .article-image-placeholder {
        height: 200px;
    }
    
    .article-nav {
        flex-direction: column;
    }
    
    .article-nav a {
        max-width: 100%;
        margin-bottom: 10px;
    }
    
    .nav-next {
        margin-top: 15px;
    }
}

/* 线上展厅标签样式 */
.exhibition-tabs {
    display: flex;
    margin-left: 20px;
}

.tab-link {
    padding: 5px 15px;
    margin-right: 10px;
    font-size: 14px;
    color: #666;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-link.active {
    color: #1e6bb8;
    border-bottom-color: #1e6bb8;
}

.exhibition-tab-content {
    margin-top: 20px;
}

.exhibition-tab-content.hidden {
    display: none;
}

.tab-more-link.hidden {
    display: none;
}

/* 产品网格样式 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 20px;
}

.product-item {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.product-info {
    padding: 15px;
}

.product-name {
    font-size: 16px;
    margin: 0 0 8px;
    color: #333;
}

.product-brief {
    font-size: 13px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* 解决方案样式 */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 20px;
}

.solution-item {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.solution-info {
    padding: 15px;
}

.solution-name {
    font-size: 18px;
    margin: 0 0 8px;
    color: #333;
}

.solution-brief {
    font-size: 14px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* 活动样式 */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 25px;
}

.activity-item {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.activity-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.activity-info {
    padding: 15px;
}

.activity-name {
    font-size: 18px;
    margin: 0 0 8px;
    color: #333;
}

.activity-time {
    font-size: 13px;
    color: #1e6bb8;
    margin: 0 0 8px;
}

.activity-brief {
    font-size: 14px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* 会员单位样式 */
.member-section {
    background-color: #f9f9f9;
    padding: 30px 0;
    margin-top: 40px;
}

.member-wall {
    padding: 20px 0;
}

.member-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    grid-gap: 15px;
    padding: 10px;
}

.member-logo {
    background-color: #fff;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
    transition: transform 0.3s;
}

.member-logo:hover {
    transform: translateY(-3px);
}

/* 响应式调整 */
@media screen and (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .activity-grid {
        grid-template-columns: 1fr;
    }
    
    .member-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .exhibition-tabs {
        flex-wrap: wrap;
    }
}

@media screen and (max-width: 576px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
    }
    
    .member-grid {
        grid-template-columns: 1fr;
    }
}

/* 新增导航菜单样式 */
.nav-list .dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--primary-blue);
    min-width: 200px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    z-index: 1000;
    border-radius: 0 0 6px 6px;
    border-top: 2px solid var(--secondary-blue);
    animation: fadeIn 0.3s ease;
    overflow: hidden;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.dropdown-content a {
    color: #fff;
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    transition: all 0.25s ease;
    font-size: 14px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    background-color: var(--secondary-blue);
    color: #fff;
    padding-left: 25px;
}

.dropdown-content a:hover:before {
    content: "";
    position: absolute;
    left: 10px;
    top: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: #fff;
    transform: translateY(-50%);
}

.nav-list .dropdown:hover .dropdown-content {
    display: block;
}

/* 移动端下拉菜单适配 */
@media screen and (max-width: 768px) {
    .nav-list .dropdown .dropdown-content {
        position: static;
        box-shadow: none;
        background-color: rgba(0, 64, 133, 0.4);
        border-radius: 0;
        border-top: none;
        animation: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        display: block;
        transform-origin: top;
        opacity: 1;
    }
    
    .nav-list .dropdown.active .dropdown-content {
        max-height: 500px;
    }
    
    .nav-list .dropdown .dropdown-content a {
        color: #fff;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        font-size: 13px;
        padding-left: 30px;
    }
    
    .nav-list .dropdown .dropdown-content a:hover {
        background-color: rgba(0, 86, 179, 0.3);
        color: #fff;
    }
    
    .nav-list .dropdown .dropdown-content a:before {
        left: 15px;
    }
    
    .nav-list li:hover a {
        background-color: rgba(0, 86, 179, 0.3);
    }
    
    .nav-list li.active a {
        background-color: rgba(0, 86, 179, 0.5);
    }
    
    .nav-list .dropdown > a .fa {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        transition: transform 0.2s ease;
    }
    
    .nav-list .dropdown.active > a .fa {
        transform: translateY(-50%) rotate(180deg);
    }
}

/* 联盟章程页面样式 */
.charter-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.charter-info {
    margin-top: 20px;
}

.charter-version {
    font-size: 18px;
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.charter-approval {
    font-size: 16px;
    color: #666;
}

.charter-section {
    margin-bottom: 40px;
}

.charter-section h2 {
    color: #1e6bb8;
    font-size: 22px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.charter-article {
    margin-bottom: 25px;
}

.charter-article h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.charter-article p {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 15px;
}

.charter-article ol, .charter-article ul {
    padding-left: 40px;
    margin-bottom: 15px;
}

.charter-article li {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 10px;
    color: #333;
}

.charter-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.text-right {
    text-align: right;
}

/* 组织架构页面样式 */
.structure-section {
    margin-bottom: 40px;
}

.structure-section h2 {
    color: #1e6bb8;
    font-size: 22px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.structure-content {
    padding: 0 10px;
}

.structure-content h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.structure-content ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.structure-content li {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 10px;
    color: #333;
}

.structure-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 15px;
}

.structure-leaders {
    margin-top: 30px;
}

.leaders-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 30px;
    margin-top: 20px;
}

.leader-item {
    display: flex;
    align-items: flex-start;
    background: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.leader-photo {
    margin-right: 15px;
}

.leader-info h4 {
    margin: 0 0 5px;
    font-size: 18px;
    color: #333;
}

.leader-title {
    font-size: 16px;
    color: #1e6bb8;
    margin: 0 0 5px;
}

.leader-org {
    font-size: 14px;
    color: #666;
    margin: 0;
}

/* 响应式调整 */
@media screen and (max-width: 768px) {
    .leaders-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 576px) {
    .leaders-grid {
        grid-template-columns: 1fr;
    }
    
    .leader-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .leader-photo {
        margin-right: 0;
        margin-bottom: 15px;
    }
}

/* 文件下载区域样式 */
.file-download-section {
    margin-top: 40px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.file-download-section h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.file-download-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: white;
    border-radius: 6px;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.file-download-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-color: #007bff;
}

.file-download-item i.fa {
    font-size: 24px;
    margin-right: 15px;
    width: 30px;
    text-align: center;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    color: #333;
    margin-bottom: 5px;
}

.file-size {
    font-size: 12px;
    color: #6c757d;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background: #0056b3;
    color: white;
    text-decoration: none;
}

.download-btn i {
    margin-right: 5px;
}

.permission-notice {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: #ffc107;
    color: #856404;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
}

.permission-notice i {
    margin-right: 5px;
}

/* 文件图标颜色 */
.file-pdf { color: #dc3545; }
.file-word { color: #007bff; }
.file-excel { color: #28a745; }
.file-ppt { color: #fd7e14; }
.file-text { color: #6c757d; }
.file-zip { color: #6f42c1; }
.file-image { color: #e83e8c; }
.file-video { color: #fd7e14; }
.file-audio { color: #20c997; }
.file-default { color: #6c757d; }

/* 响应式设计 */
@media (max-width: 768px) {
    .file-download-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .file-download-item i.fa {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .download-btn,
    .permission-notice {
        align-self: flex-end;
    }
}