.hd-nav{display: flex;justify-content: space-between;align-items: center;}
.hd-nav li{display: inline-block;vertical-align: middle;position: relative;margin-left: 40px;}
.hd-nav li>a{display: block;font-size: 20px;color:#fff;position: relative;line-height: 50px;}
.hd-nav li.cur>a,.hd-nav li:hover>a{font-weight: bold;}

.hd-nav .drop{width: 150px;position: absolute;left: 50%;transform: translate(-50%,0) scaleY(0);visibility: hidden;opacity: 0;transition: all .3s ease 0s;transform-origin: center top;z-index:100;background:rgba(0,0,0,0.4);}
.hd-nav .lk{display: block;font-size: 18px;color:#fff;text-align: center;line-height: 40px;border-top:1px solid rgba(255,255,255,0.2);padding:0px 0px;}
.hd-nav .lk:hover{font-weight: bold;}
.hd-nav li:hover .drop{opacity: 1;visibility: visible;transform: translate(-50%,0) scaleY(1);}
.hd-nav li:hover .drop::before{display: block;}

.hd-nav li.sj-show{display: none;}
.pagenav{border-top:1px solid #ddd;padding:0.4rem 0 0;margin-top: 0.5rem;}
.pagenav .box{display: flex;justify-content: space-between;}
.pagenav .box .lk{margin-bottom: 0;max-width: 24.94rem;width: 47%;-webkit-line-clamp: 2;}
.pagenav .lk{font-size: 1.15rem;color:#333333;line-height: 1.7;display: block;margin-bottom: 1rem;}
.pagenav .next{text-align: right;}
.pagenav .lk:hover{color: #be1219;}
.pagenav .back{font-size: 1.15rem;color:#fff;width: 10rem;height: 2.5rem;background-color: #be1219;display: flex;align-items: center;justify-content: center;margin:1rem auto 0;}
.pagenav .back::after{content:'';width: 1rem;height: 1rem;background:url(http://www.sdwfvc.com/images/icon_11.png) no-repeat center;background-size:contain;margin-left: 8px;}
.pagenav .back:hover{background-color: #cc0000;}