.why {
    width: 100%;
}
        .breadcrumbs-title-area::before {
    background: var(--primary-color) none repeat scroll 0.7 0;
}
            .breadcrumbs-title-content h2 {
    text-align: left;
    padding-top: 300px;
    color: #333333;
}
.breadcrumbs-title-content h1 {
    text-align: left;
    color: #ff55f3;
    font-size: 3.5rem;
}
.section_title_container{
    margin-top: 30px;
}
.why_list_title{
    float: left;
}
.why_list_text{
    float: left;
}
.justify-content-start{
       margin: 20px 0px;
}

/* 时间轴容器 */
        .development-path {
            position: relative;
            width: 100%;
            min-height: 600px;
            background: url('/static/images/3affe8a3ca9f00a58ee841892b4c3cec.jpg') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
            padding: 80px 20px;
        }

        /* 背景蒙层 */
        .development-path::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 102, 153, 0.2);
            z-index: 1;
        }

        /* 内容容器 */
        .path-container {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* 时间轴轨道 */
        .timeline-track {
            position: relative;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            overflow-x: auto;
            scroll-behavior: smooth;
            -ms-overflow-style: none;
            scrollbar-width: none;
            padding: 40px 0;
            cursor: grab;
        }

        .timeline-track:active {
            cursor: grabbing;
        }

        .timeline-track::-webkit-scrollbar {
            display: none;
        }

        /* 时间轴节点 */
        .timeline-item {
            flex: 0 0 320px;
            min-height: 380px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border-radius: 20px;
            padding: 40px 30px;
            color: #fff;
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            user-select: none;
            cursor: pointer;
        }

        /* 当前激活节点（高亮） */
        .timeline-item.active {
            background: #ff6699;
            transform: scale(1.05);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        /* 年份标题 */
        .timeline-year {
            font-size: 80px;
            font-weight: 700;
            line-height: 1;
            margin-bottom: 30px;
            opacity: 0.8;
        }

        .timeline-item.active .timeline-year {
            opacity: 1;
            color: #fff;
        }

        /* 内容列表 */
        .timeline-content {
            font-size: 18px;
            line-height: 1.6;
        }

        .timeline-content ul {
            list-style: none;
            padding-left: 1rem;
        }

        .timeline-content li {
            margin-bottom: 12px;
            position: relative;
        }


        /* 时间轴竖线装饰 */
        .timeline-item::after {
            content: '';
            position: absolute;
            right: 20px;
            top: 40px;
            bottom: 40px;
            width: 2px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 1px;
        }

        .timeline-item.active::after {
            background: rgba(255, 255, 255, 0.6);
        }

        .timeline-item.active::before {
            content: '';
            position: absolute;
            right: 18px;
            bottom: 40px;
            width: 6px;
            height: 6px;
            background: #fff;
            border-radius: 50%;
            transform: translateX(-50%);
        }

        /* 底部年份指示器 */
        .year-indicator {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .year-dot {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .year-dot .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            transition: all 0.3s ease;
        }

        .year-dot.active .dot {
            background: #fff;
            transform: scale(1.2);
        }

        .year-dot span {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        .year-dot.active span {
            color: #fff;
            font-weight: 700;
        }

        /* 指示器横线 */
        .year-indicator::before {
            content: '';
            position: absolute;
            top: 6px;
            left: -100px;
            right: -100px;
            height: 2px;
            background: rgba(255, 255, 255, 0.3);
            z-index: -1;
        }

        /* 左右切换按钮 */
        .nav-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            z-index: 3;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .nav-btn:hover {
            background: rgba(255, 102, 153, 0.3);
            border-color: #ff6699;
        }

        .nav-btn.prev {
            left: 30px;
        }

        .nav-btn.next {
            right: 30px;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .timeline-item {
                flex: 0 0 280px;
                min-height: 320px;
                padding: 30px 20px;
            }

            .timeline-year {
                font-size: 60px;
                margin-bottom: 20px;
            }

            .timeline-content {
                font-size: 16px;
            }

            .year-indicator {
                gap: 40px;
            }

            .year-dot span {
                font-size: 16px;
            }

            .nav-btn {
                width: 40px;
                height: 40px;
                font-size: 20px;
            }

            .nav-btn.prev {
                left: 15px;
            }

            .nav-btn.next {
                right: 15px;
            }
        }