.in_nav {
            width: 100%;

            margin: 0 auto;
            background-color: #ffffff;
            border-radius: 28px;
       
            transition: all 0.2s;
        }

        .nav_wrap {
            display: flex;
            flex-wrap: wrap;
            display: flex;justify-content: center;
            align-items: center;
            gap: 20px 32px;
            margin: 0;
        }

        .nav_item {
            width: 200px;
            text-align: center;
            background-color: #ffffff;
            border: 2px solid #dd0000;
            border-radius: 999px;
            padding: 12px 0;
            text-decoration: none;
            display: inline-block;
            transition: all 0.25s ease-in-out;
            cursor: pointer;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", "微软雅黑", sans-serif;
            font-size: 17px;
            font-weight: 500;
            color: #dd0000;
            line-height: 1.2;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .nav_item.active,
        .nav_item:hover {
            background-color: #dd0000;
            border: 2px solid #dd0000;
            color: #ffffff;
            box-shadow: 0 6px 12px rgba(221, 0, 0, 0.2);
            transform: translateY(-1px);
        }

        .nav_item:active {
            transform: translateY(1px);
            box-shadow: 0 2px 5px rgba(221, 0, 0, 0.2);
        }

        .nav_item i, 
        .nav_item .fa, 
        .nav_item .fas, 
        .nav_item .far {
            display: none;
        }

        .nav_wrap {
            max-width: 900px;
            margin: 0 auto;
        }

        @media screen and (max-width: 768px) {
            .in_nav {
                padding: 20px 16px;
            }
            .nav_wrap {
                max-width: 100%;
                gap: 16px 18px;
                justify-content: center;
            }
            .nav_wrap {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                align-items: center;
                justify-items: center;
            }
            .nav_item {
                width: 100%;
                max-width: 260px;
                min-width: 130px;
                padding: 10px 0;
                font-size: 16px;
                white-space: nowrap;
                text-overflow: ellipsis;
                overflow: hidden;
                justify-self: center;
                box-sizing: border-box;
            }
            @media screen and (max-width: 480px) {
                .nav_item {
                    font-size: 14px;
                    padding: 8px 0;
                    width: 100%;
                }
                .nav_wrap {
                    gap: 12px;
                }
            }
        }
        
        .nav_item:focus-visible {
            outline: 3px solid #dd0000;
            outline-offset: 2px;
            border-radius: 999px;
        }
		   
/* -----------------------内页单页------------------------ */

        .onepage {
            max-width-: 1200px;
            margin: 0 auto;
            padding: 50px 0;
        }
        
        /* 容器 - 使用负边距替代gap */
        .onepage-container {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            margin: -15px; /* 负边距抵消子元素边距 */
        }
        
        /* 左右两侧共同样式 */
        .onepage-left,
        .onepage-right {
            padding: 15px; /* 替代gap间距 */
            width: 100%;
        }
        
.onepage-image-wrapper {
    text-align: center;
}

.onepage-image {
    display: inline-block;
    width: auto;
    height: auto;
    max-width: 100%;
    transition: all 0.4s ease;
}
        
        /* 图片提示图标 */
        .onepage-image-hint {
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #3498db;
            font-size: 18px;
            z-index: 2;
        }
        
        /* 标题 */
        .onepage-title {
            color: #1e64bc;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 15px;
        }
        
        /* 分隔线 */
        .onepage-divider {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .onepage-line {
            height: 3px;
            width: 60px;
            background-color: #95a5a6;
            border-radius: 2px;
        }
        
        .onepage-divider-icon {
            color: #95a5a6;
            margin-left: 10px;
            font-size: 14px;
        }
        
        /* 描述文本 */
        .onepage-description {
            color: #2c3e50;
            line-height: 1.8;
            font-size: 15px;
        }
        
        .onepage-description p {
            margin-bottom: 15px;
        }
        
        /* 特色列表 */
        .onepage-features {
            margin-top: 25px;
            list-style: none;
        }
        
        .onepage-features li {
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
        }
        
        .onepage-features-icon {
            color: #3498db;
            margin-right: 10px;
            flex-shrink: 0;
            margin-top: 3px;
        }
        
        /* 平板设备 (768px及以上) */
        @media (min-width: 768px) {
            .onepage-left {
                width: 51%;
            }
            
            .onepage-right {
                width: 49%;
            }
            
            .onepage-title {
                font-size: 1.6rem;
            }
            
            .onepage-description {
                font-size: 1rem;
            }
        }
        
        /* 桌面设备 (992px及以上) */
        @media (min-width: 992px) {
            .onepage-container {
                margin: -20px; /* 增加负边距 */
            }
            
            .onepage-left,
            .onepage-right {
                padding: 20px; /* 增加内边距 */
            }
        }
        
        /* 移动端优化 */
        @media (max-width: 767px) {
            .onepage-container {
                margin: -10px; /* 减少负边距 */
            }
            
            .onepage-left,
            .onepage-right {
                padding: 10px; /* 减少内边距 */
            }
            
            .onepage-title {
                font-size: 1.8rem;
            }
            
            .onepage-image-hint {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }
        
        /* 极窄屏幕优化 */
        @media (max-width: 480px) {
            .onepage {
                padding: 10px;
            }
            
            .onepage-container {
                margin: -5px;
            }
            
            .onepage-left,
            .onepage-right {
                padding: 5px;
            }
        }
 /* -----------------------内页下载中心------------------------ */
 
          .down-container {
            width: 100%;
           padding:50px 0 0px 0;
            margin: 0 auto;
        }
        
        /* 下载列表 - PC端双列 */
        .down-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            list-style: none;
            width: 100%;
        }
        
        .down-item {
            background-color: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            border: 1px solid #eaeff5;
        }
        
        .down-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
        }
        
        .down-link {
            display: flex;
            text-decoration: none;
            color: inherit;
            padding: 22px;
            transition: background-color 0.3s ease;
            height: 100%;
        }
        
        .down-link:hover {
            background-color: #f8fafd;
        }
        
        .down-left {
            display: flex;
            align-items: center;
            flex: 1;
            padding-right: 20px;
        }
        
        .down-icon {
            width: 48px;
            height: 48px;
            background-color: #c20d00;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 20px;
            transition: all 0.3s ease;
        }
        
        .down-icon i {
            color: white;
            font-size: 25px;
			padding-top:6px;
            transition: all 0.3s ease;
        }
        
        .down-content {
            flex: 1;
            min-width: 0; /* 防止内容溢出 */
        }
        
        .down-title {
            font-size: 18px;
            font-weight: 600;
            color: #222222;
            transition: all 0.3s ease;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .down-file-info {
            font-size: 14px;
            color: #999999;
            margin-top: 8px;
            display: flex;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .down-file-size {
            margin-left: 15px;
            position: relative;
        }
        
        .down-file-size::before {
            content: "•";
            margin-right: 15px;
        }
        
        .down-right {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .down-download {
            width: 48px;
            height: 48px;
            background-color: #f0f5ff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .down-download i {
            color: #7f8c8d;
            font-size: 24px;
			padding-top:5px;
            transition: all 0.3s ease;
        }
        
        /* 鼠标悬停效果 */
        .down-link:hover .down-title {
            color: #c20d00;
        }
        
        .down-link:hover .down-icon {
            background-color: #c20d00;
            transform: rotate(0deg);
        }
        
        .down-link:hover .down-icon i {
            transform: scale(1);
        }
        
        .down-link:hover .down-download {
            background-color: #c20d00;
            transform: scale(1.1);
        }
        
        .down-link:hover .down-download i {
            color: white;
            transform: translateY(0px);
        }
        
        /* 响应式设计 - 平板和移动端 */
        @media (max-width: 992px) {
            .down-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px;
            }
            
            .down-link {
                padding: 18px;
            }
            
            .down-icon, .down-download {
                width: 42px;
                height: 42px;
            }
            
            .down-title {
                font-size: 17px;
            }
        }
        
        @media (max-width: 768px) {
            .down-list {
                grid-template-columns: 1fr; /* 移动端单列 */
                gap: 15px;
            }
        }
        
        @media (max-width: 576px) {
            .down-link {
                padding: 16px;
            }
            
            .down-icon, .down-download {
                width: 40px;
                height: 40px;
            }
            
            .down-icon {
                margin-right: 15px;
            }
            
            .down-title {
                font-size: 16px;
            }
            
            .down-file-info {
                font-size: 13px;
            }
        }
        
        /* 动画效果 */
        @keyframes down-fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .down-item {
            animation: down-fadeIn 0.5s ease-out forwards;
            opacity: 0;
        }
        
        .down-item:nth-child(1) { animation-delay: 0.1s; }
        .down-item:nth-child(2) { animation-delay: 0.2s; }
        .down-item:nth-child(3) { animation-delay: 0.3s; }
        .down-item:nth-child(4) { animation-delay: 0.4s; }
        .down-item:nth-child(5) { animation-delay: 0.5s; }
        .down-item:nth-child(6) { animation-delay: 0.6s; }
  
        .contact-container {
            max-width-: 1200px;
            margin: 0 auto;
            width: 100%;
        }

 /* =============内页营销网络============================*/

        .net-card {
     
            width: 100%;
            margin: 0 auto;

            overflow: hidden;
        }

        .net-content {
            padding: 2.5rem 0rem;
        }

        .net-text-section {
            text-align: left;
            max-width: 100%;
            margin-bottom: 2rem;
        }

        .net-text-section p {
            font-size: clamp(1rem, 4vw, 1rem);
            line-height: 1.8;
            color: #333333;
            margin-bottom: 5px;
        }

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

.net-image-wrapper {
    width: 100%;
    overflow: hidden;
}

.net-responsive-img {
    display: block;
    width: 100%;
    height: auto;
}

/* PC端不限制图片原始大小 */
@media (min-width: 641px) {
    .net-image-wrapper {
        width: auto;
        overflow: visible;
    }
    
    .net-responsive-img {
        width: auto;
        max-width: none;
    }
}

/* 移动端防止溢出 */
@media (max-width: 640px) {
    .net-content {
        padding: 1rem 0rem 1rem 0rem;
    }
    
    .net-image-wrapper {
        width: 100%;
        overflow: hidden;
    }
    
    .net-responsive-img {
        width: 100%;
        height: auto; padding: 0rem 0rem 1rem 0rem;
    }
}




        .contact-wrap {
            width: 100%;
            padding:50px 50px;
        }

        .contact-container {
            display: flex;
            flex-wrap: wrap;
            margin: 0 auto;
            width: 100%;
        }

        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
            transition: all 0.2s ease;
        }

        .contact-icon-box {
            width: 60px;
            height: 60px;
            border: 2px solid #dd0000;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 18px;
            flex-shrink: 0;
            background-color: #ffffff;
        }

        .contact-icon-box i {
            font-size: 28px;
            color: #dd0000;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
            word-break: break-word;
        }

        .contact-title {
            font-size: 18px;
            color: #333333;
            margin-bottom: 8px;
            font-weight: normal;
            line-height: 1.2;
        }

        .contact-value {
            font-size: 15px;
            color: #dd0000;
            font-weight: normal;
            line-height: 1.3;
            letter-spacing: 0.3px;
        }

        @media (min-width: 769px) {
            .contact-item {
                width: 22%;
                margin-right: 3%;
                margin-bottom: 25px;
            }
            .contact-item:nth-child(4n) {
                margin-right: 0;
            }
            .contact-container {
                justify-content: flex-start;
            }
        }

        @media (max-width: 768px) {
            .contact-item {
                width: 100%;
                margin-right: 0;
                margin-bottom: 28px;
            }
            .contact-container {
                flex-direction: column;
                align-items: stretch;
            }
            .contact-icon-box {
                width: 60px;
                height: 60px;
                margin-right: 18px;
            }
            .contact-title {
                font-size: 18px;
            }
            .contact-value {
                font-size: 16px;
                word-break: break-all;
                white-space: normal;
            }
            .contact-wrap {
                padding: 25px 16px;
            }
        }

        @media (min-width: 769px) {
            .contact-item {
                transition: transform 0.2s ease, box-shadow 0.2s ease;
            }
            .contact-item:hover {
                transform: translateY(-2px);
            }
            .contact-icon-box {
                transition: border-color 0.2s, background 0.2s;
            }
            .contact-item:hover .contact-icon-box {
                border-color: #bb0000;
            }
            .contact-item:hover .contact-icon-box i {
                color: #bb0000;
            }
        }


/*通用分页样式 */


.pagination {display: flex;
justify-content: center;
    display-: inline-block;
    padding-left: 0;
    margin: 20px 20px 0px 20px;
    border-radius: 4px; }
.pagination > li {
    display: inline; }
.pagination > li > a,
.pagination > li > span {
    position: relative;
    float: left;
    padding: 6px 12px;
    line-height: 1.42857;
    text-decoration: none;
    color: #000000;
    background-color: #fff;
    border: 1px solid #ddd;
    margin-left: -1px; }
.pagination > li:first-child > a,
.pagination > li:first-child > span {
    margin-left: 0;
    border-bottom-left-radius: 4px;
    border-top-left-radius: 4px; }
.pagination > li:last-child > a,
.pagination > li:last-child > span {
    border-bottom-right-radius: 4px;
    border-top-right-radius: 4px; }
.pagination > li > a:hover, .pagination > li > a:focus,
.pagination > li > span:hover,
.pagination > li > span:focus {
    z-index: 2;
    color: #dd0000;
    background-color: #eeeeee;
    border-color: #ddd; }
.pagination > .active > a, .pagination > .active > a:hover, .pagination > .active > a:focus,
.pagination > .active > span,
.pagination > .active > span:hover,
.pagination > .active > span:focus {
    z-index: 3;
    color: #fff;
    background-color: #dd0000;
    border-color: #dd0000;
    cursor: default;}