.products-banner {
            background: url(/img222/banner/about.png) no-repeat center center;
        }
        .partners-section{
            text-align: center;
        }


        /* 主要内容区域 */
        .main-content {
            padding: 40px 0 0 0;
        }
        
        .section {
            margin: 60px auto;
        }
        
        .section-title {
            font-size: 32px;
            margin-bottom: 20px;
            color: #333;
        }
        
        .section-text {
            margin-bottom: 20px;
        }
        .section-title2 {
            font-size: 24px;
            margin-bottom: 18px;
            color: #333;
        }
        
        /* 公司介绍部分 */
        .company-intro {
            display: flex;
            align-items: stretch;
            margin: 0 0 60px 0;
        }
        
        .company-image {
            flex: 0 0 50%;
            overflow: hidden;
            position: relative;
            display: flex;
            align-items: center;
        }
        .company-image::after{
            content: '';
            width: 60%;
            height: 100%;
            position: absolute;
            top: 0;
            left: 20%;
            background: #F8C300;
            opacity: 0.2;
            z-index: -1;
        }
        
        .company-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        .company-text {
            flex: 1;
            margin: 0 100px 0 0;
        }
        
        /* 统计数据 */
        .stats-grid {
            display: flex;
            justify-content: space-between;
        }
        
        .stat-item {
            padding: 20px;
            border-top: 2px solid #D9D9D9;
            display: flex;
            flex-direction: column;
            width: 20%;
        }
        
        .stat-number {
            font-size: 60px;
            /*line-height: 60px;*/
            font-weight: bold;
            color: #F8C300;
            display: flex;
            align-items: flex-end;
        }

        .stat-number span {
            font-size: 16px;
            font-weight: 400;
            padding: 0 0 20px 5px;
        }
        
        .stat-label {
            font-size: 16px;
            color: #666;
        }

        /* 生产基地 */
        .production-base-section {
            padding: 80px 0 0 0;
            background: url('/img222/about/about12.png') center/cover no-repeat;
            color: white;
            min-height: 600px;
            position: relative;
            overflow: hidden;
            margin: 40px 0 0 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
            font-size: 16px;
            line-height: 1.5;
        }

        .section-header h2 {
            font-size: 36px;
            color: #F8C300;
            margin-bottom: 30px;
            text-align: center;
        }

        .section-header div {
            font-size: 16px;
            color: #e6e6e6;
        }

        .production-carousel {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            background: #fff;
        }

        .carousel-container {
            position: relative;
            overflow: visible;
        }

        .carousel-slides {
            display: flex;
            position: relative;
            height: 100%;
            transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .carousel-slide {
            position: absolute;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
            opacity: 0;
            z-index: 1;
        }

        .carousel-slide.active {
            position: relative;
            opacity: 1;
            z-index: 10;
            transform: translateX(0);
        }

        .carousel-slide.left {
            opacity: 0.7;
            transform: translateX(-110%);
            z-index: 5;
        }

        .carousel-slide.right {
            opacity: 0.7;
            transform: translateX(110%);
            z-index: 5;
        }

        .carousel-slide.hidden {
            opacity: 0;
            z-index: 1;
        }

        .slide-content {
            display: flex;
            flex-direction: column;
            width: 90%;
            padding: 60px 0 80px 0;
            max-width: 820px;
            overflow: hidden;
            color: #333;
        }

        .slide-image {
            width: 100%;
            height: 390px;
            overflow: hidden;
        }

        .slide-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .slide-text {
            flex: 1;
            text-align: left;
            visibility: visible;
            transition: all 0.6s ease 0.8s;
            transform: translateY(0);
            opacity: 1;
        }
        
        .carousel-slide.left .slide-content,.carousel-slide.right .slide-content{
            background: none;
            z-index: 5;
        }
        .carousel-slide.left .slide-text,.carousel-slide.right .slide-text{
            visibility: hidden;
            transform: translateY(40px);
            transition: visibility 0s;
            opacity: 0;
        }

        .slide-text h3 {
            font-size: 24px;
            margin-bottom: 30px;
            border-left: 5px solid #F8C300;
            padding: 0 0 0 10px;
        }

        .text-content {
            font-size: 16px;
            line-height: 1.6;
            opacity: 0.9;
            height: 180px 
        }

        .carousel-controls {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-top: -80px;
            position: relative;
            z-index: 888;
        }

        .carousel-btn {
            width: 50px;
            height: 50px;
            color: white;
            font-size: 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            position: absolute;
            top: -222px;
            border: 1px solid #6D879F;
            background: none;
        }
        .carousel-btn.prev-btn{
            left: -80px;
        }
        .carousel-btn.next-btn{
            right: -80px;
        }

        .carousel-btn:hover {
            background: #F8C300;
            color: #041e41;
            transform: scale(1.1);
        }

        .carousel-dots {
            display: flex;
            margin: 24px 0;
        }

        .carousel-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #fff;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid #F8C300;
            margin: 0 6px;
        }

        .carousel-dot.active {
            background: #F8C300;
        }

        .thumbnail-preview {
            display: none;
        }

        @media (min-width: 992px) {
            
            .thumbnails-container {
                display: flex;
                justify-content: center;
                padding: 0 100px;
            }
            
            .thumbnail-item {
                width: 200px;
                height: 150px;
                border-radius: 8px;
                overflow: hidden;
                cursor: pointer;
                opacity: 0.6;
                transition: all 0.3s ease;
                position: relative;
            }
            
            .thumbnail-item img {
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
            
            .thumbnail-item:hover {
                opacity: 0.8;
                transform: translateY(-5px);
            }
            
            .thumbnail-item.active {
                opacity: 1;
                transform: translateY(-10px);
                box-shadow: 0 10px 20px rgba(0, 43, 69, 0.3);
            }
            
            .thumbnail-overlay {
                position: absolute;
                bottom: 0;
                left: 0;
                right: 0;
                background: linear-gradient(to top, rgba(0, 43, 69, 0.9), transparent);
                color: white;
                padding: 10px;
                font-size: 14px;
                text-align: center;
                opacity: 0;
                transition: opacity 0.3s ease;
            }
            
            .thumbnail-item:hover .thumbnail-overlay {
                opacity: 1;
            }
        }

        /* 选择我们的理由 */
        .reason-txt{
            text-align: center;
            margin: 60px 0;
        }
        .reason-list{
            color: #555;
            margin: -10px;
        }
        .reason-list div{
            background: #F9FDFF;
            padding: 62px 46px 54px 46px;
            margin: 10px;
        }
        .reason-list p{
            color: #333;
            padding: 12px 0 16px 0;
            font-weight: bold;
            font-size: 16px;
        }
        
        /* 使命 */
        .mission-section{
            text-align: center;
            margin: 60px 0;
            color: #fff;
            padding: 67px 0;
            background: url(/img222/about/about21.png);
            background-attachment: fixed;
            background-position: center center;
            background-size: cover;
            background-repeat: no-repeat;
            transition: background-position 0.1s ease-out;
        }

        .mission-section h2{
            margin: 0 0 26px 0;
            font-size: 32px;
        }
        
        /* 双栏布局 */
        .two-column {
            display: flex;
        }
        
        .column {
            flex: 1;
        }
        
        /* 合作伙伴部分 */
        .partners-grid {
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            margin: 60px 0 0 0;
        }

        .partner-logo {
            /* 5列布局时：100% ÷ 5 - 间隙 */
            width: 240px;
            margin-right: 20px;
            margin-bottom: 20px;
        }

        /* 每行第5个、第11个、第16个去掉右边距 */
        .partner-logo:nth-child(5),
        .partner-logo:nth-child(11),
        .partner-logo:nth-child(16) {
            margin-right: 0;
        }

        /* 第二行的6个单独调整宽度 */
        .partner-logo:nth-child(n+6):nth-child(-n+11) {
            width: calc(16.666% - 17px);  /* 16.666% = 1/6，减去右边距空间 */
        }

        .partner-logo img {
            width: 100%;
            height: auto;
            display: block;
        }

        @media (max-width: 1499px) {
            .partner-logo {
                width: calc(25% - 20px) !important;
                margin-right: 20px !important;
            }
            .partner-logo:nth-child(4n) {
                margin-right: 0 !important;
            }
            .partner-logo:nth-child(n+6):nth-child(-n+11) {
                width: calc(25% - 20px) !important;
            }
        }
        
        /* 移动端响应式 */
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .company-intro,
            .two-column {
                flex-direction: column;
                align-items: stretch;
            }
            
            .company-image {
                flex: none;
                /*margin-bottom: 20px;*/
            }
        }
        
        @media (max-width: 768px) {
            .navbar {
                flex-direction: column;
            }
            
            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .nav-actions {
                flex-wrap: wrap;
                justify-content: center;
            }
        }



        .video-container {
            position: relative;
            width: 100%;
            height: 0;
            padding-bottom: 56.25%; /* 16:9 宽高比 */
            overflow: hidden;
        }
        
        .video-player {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .video-cover {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            display: flex;
            justify-content: center;
            align-items: center;
            transition: opacity 0.5s ease;
            cursor: pointer;
        }
        
        .play-button {
            width: 80px;
            height: 80px;
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .play-button:hover {
            transform: scale(1.1);
            background-color: white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }
        
        .play-button::after {
            content: '';
            display: block;
            width: 0;
            height: 0;
            border-left: 20px solid #1a2a6c;
            border-top: 12px solid transparent;
            border-bottom: 12px solid transparent;
            margin-left: 5px;
        }
        
        .controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: rgba(0, 0, 0, 0.7);
            padding: 12px 20px;
            position: absolute;
            bottom: 0;
            width: 100%;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }
        
        .video-container:hover .controls {
            transform: translateY(0);
        }
        
        .progress-bar {
            flex-grow: 1;
            height: 6px;
            background-color: rgba(255, 255, 255, 0.3);
            border-radius: 3px;
            margin: 0 15px;
            position: relative;
            cursor: pointer;
        }
        
        .progress {
            height: 100%;
            background-color: #fdbb2d;
            border-radius: 3px;
            width: 0%;
        }
        
        .time {
            font-size: 14px;
            color: white;
        }
        
        .control-btn {
            background: none;
            border: none;
            color: white;
            font-size: 18px;
            cursor: pointer;
            padding: 5px;
            border-radius: 50%;
            transition: background-color 0.2s;
        }
        
        .control-btn:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        .volume-container {
            display: flex;
            align-items: center;
        }
        
        .volume-slider {
            width: 80px;
            margin-left: 10px;
        }
        
        .instructions {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 10px;
            margin-top: 20px;
            text-align: left;
        }
        
        .instructions h3 {
            margin-bottom: 10px;
            color: #fdbb2d;
        }
        
        .instructions ul {
            padding-left: 20px;
        }
        
        .instructions li {
            margin-bottom: 8px;
            line-height: 1.5;
        }

                /* 平板端样式 */
        @media (min-width: 768px) and (max-width: 991px) {
            
            .slide-content {
                width: 80%;
            }
            
            .carousel-slide.left {
                transform: translateX(-80%) scale(0.8);
            }
            
            .carousel-slide.right {
                transform: translateX(80%) scale(0.8);
            }
        }

        /* 移动端样式 */
        @media (max-width: 767px) {

            .production-base-section{
                background: none;
                padding: 0;
            }

            .production-bj{
                background: url('/img222/about/about12.png') center/cover no-repeat;
                padding: 60px 0;
                margin: 0;
            }

            .carousel-slides{
               flex-direction: column;
            }

            .slide-content {
                width: 95%;
                padding: 40px 0 0 0;
            }

            .slide-image img{
                margin: 30px 0 0 0;
            }
            
            .carousel-slide {
                position: relative;
                opacity: 1;
            }
            
            .carousel-slide.active {
                opacity: 1;
                transform: translateX(0);
            }
            
            .carousel-slide.left,
            .carousel-slide.right {
                display: none;
            }
            
            .slide-image {
                height: 200px;
            }

            .slide-text h3 {
                font-size: 20px;
                display: flex;
                align-items: center;
            }
            
            .text-content {
                font-size: 14px;
                height: auto;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }

            .section-title{
                font-size: 20px;
            }
            
            .play-button {
                width: 70px;
                height: 70px;
            }
            
            .play-button::after {
                border-left-width: 16px;
                border-top-width: 10px;
                border-bottom-width: 10px;
            }
            
            .volume-slider {
                width: 60px;
            }
            .grid-image {
                width: 100%;
            }
            .column-bottom{
                margin: 0;
            }
            .partner-logo{
                margin: 5px !important;
            }

            .company-intro{
                margin: 0;
            }
            .stats-grid{
                flex-direction: column;
            }
            .stat-item{
                width: 100%;
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
                border-top: none;
                border-bottom: 2px solid #D9D9D9;
                padding: 20px 0;
            }
            .reason-list{
                flex-wrap: wrap;
            }
            .reason-list div{
                padding: 10px;
                flex: 1 1 calc(40% - 10px) !important;
            }
            .mission-section{
                background-attachment: inherit;
            }
            .main-content{
                padding: 0;
            }
            .company-text{
                margin: 0;
            }
            .section{
                margin: 0 0 40px 0;
            }
            .partners-grid{
                width: 100%;
                margin: 0;
                justify-content: space-between;
            }
            .company-text{
                margin: 0;
            }
            .partners-text{
                margin: 0 0 20px 0;
            }
            .stat-number{
                font-size: 32px;
            }
        }