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

body {
    font-family: "Microsoft YaHei", sans-serif;
    background-color: #f5f5f5;
    overflow-x: hidden;
}

.timeline-container {
    width: 100%;

    position: relative;
}

.timeline-wrapper {
    width: 100%;
    position: relative;
    width: 90%;
    margin: 0 auto;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    /* 增强iOS滚动体验 */
    scrollbar-width: none;
    /* 隐藏Firefox滚动条 */
    -ms-overflow-style: none;
    /* 隐藏IE滚动条 */
}

/* 隐藏滚动条但保持功能 */
.timeline-wrapper::-webkit-scrollbar {
    display: none;
}

.timeline {
    position: relative;
    width: 120%;
    /* 足够长的宽度容纳所有节点 */
    height: 420px;
    margin: 0 auto;
}

/* 主轴 */
.main-axis {
    position: absolute;
    top: 50%;
    left: 50px;
    width: 100%;
    /* 主轴只显示在可视区域内 */
    height: 10px;
    background-color: rgb(165, 165, 165);
    transform: translateY(-50%);
}

/* 右箭头 */
.main-axis:after {
    content: '';
    position: absolute;
    right: -15px;
    top: 50%;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 15px;
    border-color: transparent transparent transparent #ccc;
    transform: translateY(-50%);
}

/* 节点 */
.node {
    position: absolute;
    width: 200px;
    transition: all 0.3s ease;
}

/* 鼠标悬浮效果 */
.node:hover .connector {
    background-color: #3374C9;
}

.node:hover .dot,
.node:hover .dot-max {
    background-color: #3374C9;
}



.node:hover .year,
.node:hover .description {
    color: #3374C9;
}


.node:hover .node-image {
    border: 5px solid #3374C9;
}


.node:hover .node-image {
    border: 5px solid #3374C9;
}




.node:hover .node-image {
    border: 5px solid #3374C9;
}


/* 连接线 */
.connector {
    position: absolute;
    width: 2px;
    background-color: rgb(165, 165, 165);
    left: 50%;
    transform: translateX(-50%);
    min-height: 60px;
    /* 最低高度设为60px */
    max-height: 130px;
    transition: background-color 0.3s ease;
}

/* 上方节点 */
.node-top {
    bottom: 50%;
    margin-bottom: 30px;
}

.node-top .connector {
    bottom: -25px;
    height: auto;
    /* 高度自适应 */
}

.node-top .node-text {
    position: absolute;
    left: 150px;
    bottom: 0;
    width: 250px;
}

.node-image {

    border: 5px solid rgb(218, 218, 218);

}

.node-top .node-image {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 30px;
    width: 80px;
    height: 80px;
    background-color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;



}

.node-top .node-image img {
    width: 40px;
    height: 40px;
    filter: invert(1);
}

/* 下方节点 */
.node-bottom {
    top: 50%;
    margin-top: 30px;
}

.node-bottom .connector {
    top: -25px;
    height: auto;
    /* 高度自适应 */
}

.node-bottom .node-text {
    position: absolute;
    right: 150px;
    top: 0;
    width: 250px;
    text-align: right;
}

.node-bottom .node-image {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 30px;
    width: 80px;
    height: 80px;
    background-color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.node-bottom .node-image img {
    width: 40px;
    height: 40px;
    filter: invert(1);
}

/* 年份 */
.year {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

/* 描述 */
.description {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
    text-align: left;
    transition: color 0.3s ease;
}

/* 点 */
.dot {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: rgb(165, 165, 165);
    border-radius: 50%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    transition: background-color 0.3s ease;
}

/* 上方节点的点位置 */
.node-top .dot {
    bottom: 0;
}

/* 下方节点的点位置 */
.node-bottom .dot {
    top: 0;
}

/* 主轴大点 */
.dot-max {
    position: absolute;
    width: 30px;
    height: 30px;
    background-color: rgb(88, 88, 88);
    border-radius: 50%;
    z-index: 10;
    left: 0;
    transform: translate(0, -50%);
    transition: background-color 0.3s ease;
}

/* 上方节点的主轴点位置 */
.node-top .dot-max {
    bottom: -25px;
    /* 连接线起点位置 */
    transform: translate(0, 50%);
}

/* 下方节点的主轴点位置 */
.node-bottom .dot-max {
    top: -25px;
    /* 连接线起点位置 */
    transform: translate(0, -50%);
}

/* 导航按钮 */
.nav-buttons {
    position: absolute;
    top: 45%;
    width: 100%;
    transform: translateY(-50%);
    z-index: 20;
    pointer-events: none;

    left: 50%;
    transform: translate(-50%, -50%);
}

.nav-button {
    background-color: #0e76bc;
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s;
    position: absolute;
    pointer-events: auto;
}

.prev-button {
    left: 10px;
}

.next-button {
    right: 10px;
}

.nav-button:hover {
    background-color: #0a5b8f;
}

.nav-button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    opacity: 0.5;
}

/* 滚动提示 */
.scroll-hint {
    text-align: center;
    margin-top: 20px;
    color: #999;
    font-size: 14px;
    animation: fade 2s infinite;
}

@keyframes fade {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 1;
    }
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .timeline {
        height: 420px;
    }

    .node-top .node-text,
    .node-bottom .node-text {
        width: 120px;
    }
}
.node-image img {
    transition: transform 0.8s ease; /* 设置过渡效果，持续时间0.8秒，缓动函数ease */
}

.node-image img:hover {
    transform: rotate(360deg); /* 鼠标悬停时旋转360度 */
}
.node-image:hover{
    border: 5px solid #3374C9;
}
.gywm_j_c_d2_d1_jc{
    width: 80%;margin: 0 auto;margin-top: 20px;:
}