.contentbox {
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  padding: 0 10px 10px;
  margin-bottom: 10px;
}
.contentbox .text_title {
  padding-top: 3%;
  text-align: center;
}
.contentbox .text_title h1 {
  color: #656763;
  font-size: 18px;
}
.contentbox .text_title span {
  display: inline-block;
  padding: 1%;
}
.contentbox .text_title span a {
  font-size: 16px;
  color: #666666;
}
.contentbox .text_title span a:hover {
  color: #bf2c24;
}
.contentbox .tools {
  padding: 1% 0;
  position: relative;
}
.contentbox .tools > ul {
  display: flex;
}
.contentbox .tools > ul > li {
  flex: 1;
  text-align: center;
  line-height: 2;
  border: 1px dotted #8a8b8d;
}
.contentbox .tools > ul > li:nth-child(2) {
  border-left: 0;
  border-right: 0;
}
.contentbox .tools > ul > li a {
  color: #8a8b8d;
  font-size: 18px;
  display: block;
}
.contentbox .tools > ul > li a::before {
  margin-right: 3px;
}
.contentbox .tools > ul > li a:hover {
  color: #bf2c24;
}
.contentbox .tools .settingbox {
  display: none;
  position: absolute;
  top: 55px;
  background: #faf9f3;
  width: 70%;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(0, 0, 0, 0.1);
}
.contentbox .tools .settingbox .panel-box {
  padding: 3%;
}
.contentbox .tools .settingbox .panel-box h4 {
  padding: 2% 0;
  color: #3e3e3d;
}
.contentbox .tools .settingbox .panel-box h4 .closebtn {
  float: right;
  color: #a6a6a6;
  cursor: pointer;
  transform: translateY(-8px);
  font-size: 28px;
}
.contentbox .tools .settingbox .panel-box h4 .closebtn:hover {
  color: red;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li {
  padding: 3% 0;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li em::before {
  color: #8f8a8a;
  font-size: 22px;
  vertical-align: middle;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li i {
  font-style: normal;
  padding-right: 3%;
  color: #8f8a8a;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li .theme {
  display: inline-block;
  width: 30px;
  height: 30px;
  border-radius: 50px;
  border: 1px solid #977b7b;
  transform: translateY(10px);
  cursor: pointer;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li .fontsize {
  border: 1px solid #e5e5e5;
  display: inline-block;
  padding: 0.8% 7%;
  font-size: 14px;
  color: #8f8a8a;
  cursor: pointer;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li .fontsize:nth-child(4) {
  margin: 0 2%;
}
.contentbox .tools .settingbox .panel-box .setting-list-wrap ul li .fontcolor {
  display: inline-block;
  width: 22px;
  height: 22px;
  border-radius: 3px;
  cursor: pointer;
  transform: translateY(5px);
}
.contentbox .article {
  font-size: 18px;
  line-height: 2;
  color: #262626;
  padding: 0 3%;
  text-indent: 2em;
}
.read_nav {
  display: flex;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  height: 40px;
  line-height: 40px;
}
.read_nav .item {
  flex: 1;
  text-align: center;
}
.read_nav .item:nth-child(1) a i::before {
  margin-right: 5px;
}
.read_nav .item:nth-child(2) {
  border-left: 1px solid #dddddd;
  border-right: 1px solid #dddddd;
}
.read_nav .item:nth-child(2) a i::before {
  font-size: 26px;
  vertical-align: bottom;
}
.read_nav .item:nth-child(3) a i::before {
  content: '\e697';
  margin-left: 5px;
}
.read_nav .item a {
  display: block;
  color: #8f8a8a;
  font-size: 18px;
}
.read_nav .item a:hover {
  color: #bf2c24;
}
.read_nav .item ul {
  overflow: hidden;
}
.read_nav .item ul li {
  float: left;
  width: 25%;
}
@media screen and (max-width: 768px) {
  .contentbox .tools .settingbox {
    width: 100%;
  }
}