.logo_a img{height: 84px;
    width: auto;}
/* 子菜单默认隐藏 */
  li ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    border: 1px solid #eee;}
  /* 鼠标划过一级菜单 → 显示子菜单 */
  li:hover ul {
    display: block;}
  li ul li:hover a{color:#004174 !important;}
  /* 子菜单样式 */
  li ul li {
    display: block;
    padding: 6px 0px;
    width:100%;}
   li ul li a{padding:0 !important; width:100%;text-align:center;color:#333 !important;}
/* --- 核心改动：子栏目样式 --- */
        .sub-menu {
            list-style: none;
            padding: 0;
            margin: 0;}

        .sub-menu li {
            margin: 10px 0;}

        .sub-menu li a {
            display: block;
            font-size: 14px;
            color: #333;
            text-decoration: none;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.2s ease;}

        /* 鼠标悬停效果（提升交互感） */
        .sub-menu li a:hover {
            background-color: #f0f7ff;
            color: #0078d7;
            padding-left: 18px;}
.vsbcontent-table-container-outer { position: relative;}
.vsbcontent-table-container
{
    width: 98%;
    overflow-y: auto;
    _overflow: auto;
    margin: 2px;}
.vsbcontent-table-container::-webkit-scrollbar
{
    -webkit-appearance: none;
    width: 14px;
    height: 14px;}
.vsbcontent-table-container::-webkit-scrollbar-thumb
{
    border-radius: 8px;
    border: 3px solid #fff;
    background-color: rgba(0, 0, 0, .3);}
.vsbcontent-table-container-fade
{
    position: absolute;
    right: 0;
    width: 5px;
    height: 100%;
    background-image: -webkit-linear-gradient(0deg, rgba(255,255,255,.5), #fff);
    background-image: -moz-linear-gradient(0deg, rgba(255,255,255,.5), #fff);
    background-image: -ms-linear-gradient(0deg, rgba(255,255,255,.5), #fff);
    background-image: -o-linear-gradient(0deg, rgba(255,255,255,.5), #fff);
    background-image: linear-gradient(0deg, rgba(255,255,255,.5), #fff);}