.hover-line {
    position: relative;
    display: inline-block;
    text-decoration: none;
    /* 去掉下划线 */
    color: black;
    /* 文本颜色 */
}

.hover-line:before {
    content: '';
    position: absolute;
    width: 0;
    /* 初始宽度为0 */
    height: 3px;
    /* 线的高度 */
    bottom: -5px;
    /* 紧贴文字底部 */
    left: 0;
    background-color: #1867bf;
    /* 线的颜色 */
    transition: width 0.5s ease-out;
    /* 动画效果 */
}

.hover-line:hover:before {
    width: 100%;
    /* hover时宽度变为100% */
}

/* 定义从上到下滑动出现的动画 */
@keyframes slideDown {
    from {
        transform: translateY(-5%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.mymenu {
    background-color: #fff;
    overflow: hidden;
    width: 100vw;
    height: 600px;
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    justify-content: center;
    z-index: 10000;
    display: none;
    flex-direction: row;
}

.mymenu-show {
    display: block;
    /* 应用动画 */
    animation: slideDown 1s ease-out forwards;
}

.mymenu-area {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
}

.mymenu-left {
    width: 20%;
    height: 100%;
    background-color: #1867bf;
    display: flex;
    flex-direction: column;
}

.mymenu-center {
    width: 20%;
    height: 100%;
    background-color: #1867bf;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.mymenu-right {
    width: 60%;
    height: 100%;
    display: flex;
    border-bottom: 1px solid #1867bf;
}

.mymenu-left-title {
    width: 100%;
    height: 30%;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    color: #fff;
    font-size: 36px;
    font-weight: 500;
    letter-spacing: 4px;
}

.mymenu-left-line {
    width: 100%;
    height: 10%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mymenu-left-line hr {
    width: 100px;
    height: 4px;
    background-color: #fff;
}

.mymenu-left-desc {
    width: 100%;
    height: 60%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.mymenu-left-desc p {
    color: #fff;
    font-size: 16px;
    font-weight: 300;
    width: 80%;
    line-height: 28px;
    text-indent: 2em;
    letter-spacing: 1px;
}

.mymenu-center-line {
    width: 10%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mymenu-center-line hr {
    width: 2px;
    height: 80%;
    background-color: #fff;
}

.mymenu-center-menu {
    width: 98%;
    height: 90%;
}

.mymenu-center-menu-item {
    width: 100%;
    display: flex;
}

.mymenu-center-menu-item-title {
    width: 100%;
    height: 100%;
    margin-left: 40px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.mymenu-center-menu-item-title a {
    width: 80%;
    color: #fff;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 2px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.sanjiao-area {
    width: 20%;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}

.sanjiao {
    width: 0;
    height: 0;
    border-width: 16px 26px 16px 16px;
    border-style: solid;
    border-color: transparent #fff transparent transparent;
    display: none;
}

.mymenu-right-area {
    width: 100%;
    height: 100%;
    display: none;
    background-color: #fff;
    flex-direction: row;
}

.area-about-left {
    width: 50%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.area-about-right {
    width: 50%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.mymenu-right-area-img {
    width: 100%;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mymenu-right-area-img img {
    width: 90%;
    height: 400px;
    object-fit: cover;
}

.mymenu-right-area-title {
    width: 90%;
    height: 80px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    color: #000;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 2px;
}

.mymenu-right-area-desc {
    width: 90%;
    height: 120px;
    display: flex;
}

.mymenu-right-area-desc p {
    color: #000;
    font-size: 16px;
    font-weight: 300;
}

.mysubmenu-show {
    display: flex;
    /* 应用动画 */
    animation: slideDown 1s ease-out forwards;
}

.oa-link-area {
    position: relative;
    right: 0;
}

.oa-link-area a {
    color: #1867bf;
    text-decoration: none;
}

.oa-link-area a:hover {
    color: #e77a47;
    text-decoration: none;
}

/*移动端菜单*/
/* 多级菜单样式 */
.menu-list {
    list-style: none;
}
.menu-item {
    border-bottom: 1px solid #eee;
    padding-right: 1rem;
}
.app-menu-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
}
.app-menu-link:hover {
    background: #f5f5f5;
}
.app-menu-link .arrow {
    width: 12px;
    height: 12px;
    border-right: 2px solid #666;
    border-bottom: 2px solid #666;
    transform: rotate(-45deg);
    transition: transform 0.3s ease;
}
.app-menu-link .arrow.active {
    transform: rotate(45deg);
}
/* 子菜单样式 */
.app-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #f9f9f9;
}
.app-submenu.active {
    max-height: 500px; /* 足够容纳子菜单 */
}
.app-submenu-item {
    border-bottom: 1px solid #eee;
}
.app-submenu-link {
    display: block;
    padding: 12px 20px 12px 40px; /* 缩进显示 */
    color: #555;
    text-decoration: none;
    font-size: 15px;
}
.app-submenu-link:hover {
    background: #f0f0f0;
}

/**页面底部按钮**/
/* 目标元素：鼠标悬停的触发区域 */
.tooltip-area{
    width: 100%;
    margin-top: 10px;
    display: flex;
}
.target-box {
    width: 180px;
    margin-right: 20px;
    display: inline-block;
    padding: 6px 20px;
    background: #005aa7;
    border: 1px solid #dee2e6;
    border-radius: 15px;
    cursor: pointer;
    position: relative;
    text-align: center;
}
/* 提示框容器：默认隐藏，绝对定位 */
.tooltip {
    position: absolute;
    bottom: calc(100% + 10px); /* 位于目标元素上方 */
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 10px;
    display: none; /* 默认隐藏 */
    z-index: 100;
}
/* 提示框三角箭头 */
.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #fff transparent transparent transparent;
    filter: drop-shadow(0 1px 0 #dee2e6); /* 箭头加边框阴影 */
}
/* 鼠标悬停时显示提示框 */
.target-box:hover .tooltip {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
/* 提示框内的文字行 */
.tooltip-item {
    line-height: 28px;
    color: #333;
    font-size: 15px;
    letter-spacing: 2px;
}