/*时间轴事件 start*/
        .main-content {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        
        .content-section {
            background: white;
            border-radius: 12px;
            padding: 30px 20px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
        }
        
        .events-container {
            position: relative;
            margin-bottom: 10px;
        }
        
        /* 事件容器，允许水平滚动并占据整个宽度 */
        .events-scroll-container {
            position: relative;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 15px 0 50px;
            cursor: grab;
            width: 100%;
            scroll-behavior: smooth;
            /* 隐藏滚动条 */
            scrollbar-width: none; /* Firefox */
        }
        
        /* Chrome, Safari, Edge */
        .events-scroll-container::-webkit-scrollbar {
            display: none;
        }
        
        .events-scroll-container:active {
            cursor: grabbing;
        }
        
        /* 事件轨道，允许扩展到整个屏幕宽度 */
        .events-track {
            display: flex;
            gap: 25px;
            padding: 0 50px;
            min-width: min-content;
            width: max-content;
        }
        
        .event-card {
            background-color: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            cursor: pointer;
            width: 320px;
            flex-shrink: 0;
            border: 2px solid transparent;
            position: relative;
        }
        
        /* 阶梯效果：奇数卡片上移10px，偶数卡片下移10px */
        .event-card:nth-child(odd) {
            transform: translateY(-10px);
        }
        
        .event-card:nth-child(even) {
            transform: translateY(10px);
        }
        
        .event-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .event-card:nth-child(odd):hover {
            transform: translateY(-15px);
        }
        
        .event-card:nth-child(even):hover {
            transform: translateY(5px);
        }
        
        .event-card.active {
            border-color: #3498db;
            box-shadow: 0 10px 25px rgba(52, 152, 219, 0.3);
        }
        
        .event-card.active .event-img {
            transform: scale(1.08);
        }
        
        /* 激活年份时文字放大效果 */
        .event-card.active .event-description {
            color: #3498db;
            font-size: 1.2rem; /* 放大文字 */
            line-height: 1.8; /* 增加行高 */
            font-weight: 600; /* 加粗 */
            transform: scale(1.05); /* 轻微缩放效果 */
            transition: all 0.5s ease;
        }
        
        .event-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            position: relative;
            background-color: #f5f5f5;
        }
        
        .event-img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            transition: all 0.5s ease;
            padding: 20px;
            /* 防止图片被拖动 */
            -webkit-user-drag: none;
            user-select: none;
            -moz-user-select: none;
            -webkit-user-select: none;
            -ms-user-select: none;
        }
        
        .event-content {
            padding: 20px;
        }
        
        /* 移除大标题，只保留描述 */
        .event-title {
            display: none;
        }
        
        .event-description {
            color: #666;
            font-size: 1rem;
            line-height: 1.6;
            transition: all 0.3s ease;
        }
        
        .timeline-container {
            margin-top: 30px;
            position: relative;
            padding: 0 60px; /* 为左右按钮留出空间 */
        }
        
        /* 隐藏时间轴标题 */
        .timeline-title {
            display: none;
        }
        
        /* 时间轴主横线 */
        .timeline {
            position: relative;
            height: 4px;
            background-color: #e0e0e0;
            border-radius: 4px;
            margin: 0 0 50px 0;
        }
        
        /* 隐藏年份上方的小蓝条 */
        .timeline-year-indicator {
            display: none;
        }
        
        .years {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: -15px;
        }
        
        .year {
            display: flex;
            flex-direction: column;
            align-items: center;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            z-index: 2;
        }
        
        /* 隐藏年份标记点 */
        .year-marker {
            display: none;
        }
        
        /* 年份标签 - 不显示"年"字，也没有小圆圈 */
        .year-label {
            font-weight: 600;
            color: #7f8c8d;
            font-size: 1.3rem; /* 稍微增大年份数字 */
            transition: all 0.3s ease;
            position: absolute;
            top: -30px;
        }
        
        .year.active .year-label {
            color: #3498db;
            font-weight: 700;
            transform: scale(1.1);
        }
        
        /* 隐藏年份计数器 */
        .year-counter {
            display: none;
        }
        
        /* 时间轴左右按钮 */
        .timeline-nav {
            position: absolute;
            top: 20%;
            transform: translateY(-50%);
            background-color: #3498db;
            color: white;
            border: none;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
            z-index: 10;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .timeline-nav:hover {
            background-color: #2980b9;
            transform: translateY(-50%) scale(1.1);
        }
        
        .timeline-nav-left {
            left: 0;
        }
        
        .timeline-nav-right {
            right: 0;
        }
        
        .timeline-nav-disabled {
            background-color: #bdc3c7;
            cursor: not-allowed;
        }
        
        .timeline-nav-disabled:hover {
            background-color: #bdc3c7;
            transform: translateY(-50%) scale(1);
        }
        
        .nav-arrows {
            display: none;
        }
        
        .instructions {
            background-color: #fff;
            border-radius: 10px;
            padding: 20px;
            margin-top: 30px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            border-left: 4px solid #3498db;
        }
        
        .instructions h3 {
            color: #2c3e50;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .instructions p {
            color: #666;
            margin-bottom: 8px;
        }
        
        .highlight {
            color: #3498db;
            font-weight: 600;
        }
        
 
        
        .year-indicator {
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: rgba(52, 152, 219, 0.9);
            color: white;
            padding: 5px 10px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 10;
            display: none; /* 隐藏年份指示器 */
        }
        
 
        
        @media (max-width: 768px) {
 
            .content-section {
                padding: 20px 15px;
            }
            
            .event-card {
                width: 280px;
            }
            
            .years {
                flex-wrap: wrap;
                justify-content: center;
                gap: 15px;
            }
            
            .year {
                flex: 0 0 calc(33.333% - 15px);
            }
            
            .timeline-container {
                padding: 0 40px;
            }
            
            .timeline-nav {
                width: 35px;
                height: 35px;
            }
            
            .events-track {
                padding: 0 30px;
            }
            .years {
                flex-wrap: wrap;
                justify-content: center;
                gap: 20px;
                margin-top: 10px;
            }
            
            .year {
                flex: 0 0 calc(33.333% - 20px);
                margin-bottom: 15px;
            }
            
            .year-label {
                position: static; /* 移除绝对定位 */
                margin-top: 10px;
            }
            
            /* 隐藏时间轴主横线在移动端 */
            .timeline {
                display: none;
            }
            
            /* 调整时间轴容器在移动端的布局 */
            .timeline-container {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            
 
        }
        
        @media (max-width: 480px) {
            .year {
                flex: 0 0 calc(50% - 15px);
            }
            
            .timeline-container {
                padding: 0 30px;
            }
            
            .events-track {
                padding: 0 20px;
            }
            
            .event-card.active .event-description {
                font-size: 1.1rem;
            }
        }
        
        /* 移动端优化 */
        @media (max-width: 768px) {
            .event-card {
                width: 250px;
            }
        }
        
        @media (max-width: 480px) {
            .event-card {
                width: 220px;
            }
        }

/*时间轴事件 end*/
/*企业愿景 start*/
       .qyab3-container {
            display: flex;
            height: 90vh;
            width: 100vw;
            position: relative;
        }
        
        /* 桌面端 - 三个等分竖栏 */
        .qyab3-panel {
            flex: 1;
            height: 100%;
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }
        
        /* 背景图片 */
        .qyab3-bg-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            z-index: 1;
        }
        
        /* 黑色遮罩层 - 让文字更清晰 */
        .qyab3-black-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.7) 100%);
            z-index: 2;
            opacity: 0.7;
            transition: opacity 0.6s ease;
        }
        
        /* 右下角蓝色渐变遮罩 */
        .qyab3-blue-overlay {
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, transparent 40%, rgba(25, 118, 210, 0.8) 100%);
            opacity: 0;
            z-index: 3;
            transition: opacity 0.6s ease;
        }
        
        /* 内容区域 - 居中布局 */
        .qyab3-content {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 40px;
            color: white;
            z-index: 4;
            transition: all 0.6s ease;
        }
        
        /* SVG图标样式 */
        .qyab3-icon-wrapper {
            width: 60px;
            height: 60px;
            margin-bottom: 25px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .qyab3-icon {
            width: 100%;
            height: 100%;
            fill: white;
            transition: all 0.5s ease;
        }
        
        .qyab3-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
            position: relative;
            display: inline-block;
            padding-bottom: 10px;
        }
        
        .qyab3-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: #4fc3f7;
            transition: width 0.5s ease;
        }
        
        .qyab3-description {
            font-size: 1.04rem;
            line-height: 1.6;
            opacity: 0;
            max-height: 0;
            overflow: hidden;
            transition: all 0.5s ease;
            margin-top: 10px;
            text-shadow: 0 1px 5px rgba(0, 0, 0, 0.7);
            max-width: 80%;
        }
        
        /* 悬停效果 */
        .qyab3-panel:hover .qyab3-bg-image {
            transform: scale(1.08);
        }
        
        .qyab3-panel:hover .qyab3-blue-overlay {
            opacity: 1;
        }
        
        .qyab3-panel:hover .qyab3-black-overlay {
            opacity: 0.4;
        }
        
        .qyab3-panel:hover .qyab3-title:after {
            width: 100%;
        }
        
        .qyab3-panel:hover .qyab3-description {
            opacity: 1;
            max-height: 200px;
        }
        
        .qyab3-panel:hover .qyab3-icon {
            transform: scale(1.1);
            fill: #4fc3f7;
        }
        
        /* 移动端适配 */
        @media screen and (max-width: 768px) {
            .qyab3-container {
                flex-direction: column;
                overflow-y: auto;
                height: auto;
            }
            
            .qyab3-panel {
                flex: none;
                min-height: 33.33vh;
                width: 100%;
                height: auto;
            }
            
            /* 移动端触摸设备优化 */
            .qyab3-panel.qyab3-active .qyab3-bg-image {
                transform: scale(1.03);
            }
            
            .qyab3-panel.qyab3-active .qyab3-blue-overlay {
                opacity: 0.8;
            }
            
            .qyab3-panel.qyab3-active .qyab3-black-overlay {
                opacity: 0.5;
            }
            
            .qyab3-panel.qyab3-active .qyab3-title:after {
                width: 100%;
            }
            
            .qyab3-panel.qyab3-active .qyab3-description {
                opacity: 1;
                max-height: 200px;
            }
            
            .qyab3-panel.qyab3-active .qyab3-icon {
                transform: scale(1.1);
                fill: #4fc3f7;
            }
            
            .qyab3-content {
                padding: 30px 20px;
            }
            
            .qyab3-title {
                font-size: 2rem;
            }
            
            .qyab3-icon-wrapper {
                width: 50px;
                height: 50px;
                margin-bottom: 20px;
            }
            
            /* 移动端遮罩方向调整 */
            .qyab3-blue-overlay {
                background: linear-gradient(135deg, transparent 30%, rgba(25, 118, 210, 0.7) 100%);
            }
        }
        
        /* 响应式字体调整 */
        @media screen and (max-width: 480px) {
            .qyab3-title {
                font-size: 1.8rem;
            }
            
            .qyab3-description {
                font-size: 1rem;
            }
            
            .qyab3-icon-wrapper {
                width: 45px;
                height: 45px;
                margin-bottom: 15px;
            }
        }
        
        /* 底部指示器 */
        .qyab3-indicator {
            position: fixed;
            bottom: 30px;
            left: 0;
            width: 100%;
            display: flex;
            justify-content: center;
            z-index: 10;
            pointer-events: none;
        }
        
        .qyab3-indicator-dot {
            width: 12px;
            height: 12px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 50%;
            margin: 0 8px;
            transition: all 0.3s ease;
        }
        
        .qyab3-indicator-dot.qyab3-active {
            background: white;
            transform: scale(1.2);
        }
        
        /* 响应式提示 */
        .qyab3-mobile-hint {
            display: none;
            position: fixed;
            bottom: 70px;
            left: 0;
            width: 100%;
            text-align: center;
            color: white;
            font-size: 0.9rem;
            z-index: 10;
            pointer-events: none;
            opacity: 0.8;
        }
        
        @media screen and (max-width: 768px) {
            .qyab3-mobile-hint {
                display: block;
            }
            
            .qyab3-indicator {
                bottom: 20px;
            }
        }
        
        /* 加载动画 */
        @keyframes qyab3-fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .qyab3-panel {
            animation: qyab3-fadeIn 0.8s ease forwards;
        }
        
        .qyab3-panel:nth-child(2) {
            animation-delay: 0.2s;
        }
        
        .qyab3-panel:nth-child(3) {
            animation-delay: 0.4s;
        }
/*3屏 end*/



        .certificate-carousel-container {
            width: 100%;
            /*max-width: 1400px;            margin: 20px auto;*/
            height: 500px;
            position: relative;
            perspective: 1200px;
            user-select: none;
            overflow: visible;
        }
        .carousel-wrapper {
            position: relative;
            width: 100%;
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .certificate-item {
            position: absolute;
            width: 250px;
            height: 350px;
            left: 50%;
            top: 50%;
            transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            transform-style: preserve-3d;
            cursor: pointer;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            border-radius: 8px;
            overflow: hidden;
            background-color: #fff;
            will-change: transform, opacity, z-index;
        }
        .certificate-item:hover {
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
        }
        .certificate-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
            pointer-events: none;
        }
.certificate-item {
    background-color: #eaeef2; /* 淡灰色背景 */
}
        .certificate-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.85), rgba(0,0,0,0.6), transparent);
            color: white;
            padding: 15px;
            transform: translateY(100%);
            transition: transform 0.4s ease;
            text-align: center;
            pointer-events: none;
        }
        .certificate-item:hover .certificate-content {
            transform: translateY(0);
        }
        .certificate-content h3 {
            font-size: 1.3rem;
            color: #fff;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
        }
        .controls {
            display: flex;
            justify-content: center;
            gap: 40px;
          /*  margin-top: 20px; */
        }
        .arrow-btn {
            background: #3498db;
            color: white;
            border: none;
            width: 65px;
            height: 65px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 5px 20px rgba(52, 152, 219, 0.4);
            transition: all 0.3s ease;
            padding: 0;
        }
        .arrow-btn:hover {
            background: #2980b9;
            transform: scale(1.1);
        }
        .arrow-btn svg {
            width: 30px;
            height: 30px;
            fill: none;
            stroke: currentColor;
            stroke-width: 3;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        @media (max-width: 768px) {
            .certificate-item { width: 200px; height: 280px; }
            .arrow-btn { width: 55px; height: 55px; }
            .arrow-btn svg { width: 25px; height: 25px; }
        }
        @media (max-width: 576px) {
            .certificate-item { width: 160px; height: 224px; }
        }