/* 主导航的每个 <li> */
.nav > ul > li {
    position: relative;       /* ← 关键！让子菜单以它为基准 */
    display: inline-block;}
/* 子菜单容器 */
.nav li ul.sub_nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;              /* ← 关键！等于父 li 宽度 */
    min-width: auto;          /* 覆盖可能的最小宽度限制 */
    list-style: none;
    margin: 0;
    padding: 6px 0;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    z-index: 99;
    border-radius: 4px;}

/* 鼠标悬停显示 */
.nav li:hover > ul.sub_nav {
    display: block;}

/* 子菜单链接：撑满宽度 */
.nav li ul.sub_nav li a {
    display: block;
    width: 100%;
    padding: 6px 12px;
    box-sizing: border-box;   /* 确保 padding 不撑大宽度 */
    text-align: center;
    font-size: 12px !important;
    text-decoration: none;
    color: #333 !important;
    white-space: nowrap;}
/* —— 子菜单项悬停交互效果 —— */
.nav li ul.sub_nav li a:hover {
    background-color: #f0f7ff !important; /* 浅蓝色背景 */
    color: #b40200 !important;           /* 红色文字（与你导航风格一致） */
    padding-left: 16px !important;       /* 左侧多出 4px，形成缩进反馈 */
    transform: translateX(2px);          /* 轻微右移，增强动感 */
    transition: all 0.15s ease;}
.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);}