* {
    margin: 0;
    padding: 0;
}

.ruleContentBox {
    width: 1180px;
    min-height:calc(100vh - 316px);
    margin: 0 auto;
    overflow: hidden;
    padding: 20px 0;
    display: flex;

}

a {
    color: #000000;
    text-decoration: none;
}

.ruleNav {
    width: 240px;
    height: auto;
    background: #f8f8f8;
}

.navTitle {
    height: 60px;
    line-height: 60px;
    text-align: center;
    background-color: #6485b1;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
}

.ruleNav dl {
    padding-left: 40px;
    font-size: 14px;
}

.ruleNav .cur_item dt {
    font-size: 16px;
    color: #333;
    cursor: pointer;
    height: 48px;
    line-height: 48px;
    border-top: 1px solid #e6e6e6;
    display: flex;
    align-items: center;
    padding-right: 30px;
    position: relative;
}

    .ruleNav .cur_item dt::after {
        content: '';
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%) rotate(0deg);
        width: 12px;
        height: 8px;
        background: url('../../Images/bottom_icon.png') no-repeat center;
        background-size: contain;
        transition: transform 0.2s ease;
        pointer-events: none;
    }

.ruleNav .cur_item.open dt::after {
    transform: translateY(-50%) rotate(180deg);
}

.ruleNav .cur_item dd {
    display: block;
    height: 48px;
    line-height: 48px;
    border-top: 1px solid #e6e6e6;
}

.ruleNav dd a {
    display: block;
    height: 50px;
    line-height: 50px;
    padding-left: 30px;
    color: #666;
}

.ruleNav .cur_item dd a:hover,
.ruleNav .cur_item dd a.curActive {
    width: 240px;
    box-sizing: border-box;
    text-decoration: none;
    color: #2365BD;
    position: relative;
    background-color: #fff;
    padding-left: 68px;
    border-top: 1px solid #fff;
    border-bottom: 1px solid #fff;
    top: -1px;
    left: -40px;
    border-left: 3px solid #2365BD;
}


.ruleMain {
    flex: 1;
    margin-left: 40px;
}

.ruleMain .mainTitle {
    font-size: 24px;
    padding: 15px 0 25px;
    border-bottom: 1px solid #DDDDDD;
}

.mainContent {
    padding-top: 30px;
}