* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Chinese Quote,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;
  color: #333;
}

:root {
  --main-color: #4e96d3;
  --main-color-light: #5a9bd5;
  --main-color-dark: #3981d9;
  --main-color-darker: #0e4c7a;
  --main-color-darkest: #0e4c7a;
}

.w1200 {
  width: 1200px;
  margin: 0 auto;
}

ul,li {
  list-style-type: none;
}

img {
  vertical-align: middle;
}

input, section, button, select {
  outline: none;
  border: none;
}

.common-tag {
  border: 1px solid #eee;
  font-size: 12px;
  color: #333;
  margin-right: 10px;
  padding: 2px 12px;
}

.common-tag + .common-tag {
  margin-left: 10px !important;
}

/* header start */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

header .header-left {
  display: flex;
  align-items: center;
  flex: 1;
}

.header-left img {
  width: 160px;
  margin-right: 70px;
}

.header-left-nav {
  display: flex;
  align-items: center;
  flex: 1;
  list-style: none;
}

.header-left-nav li {
  padding: 10px 5px;
  margin-left: 20px;
  border-bottom: 2px solid transparent;
  color: #666;
  cursor: pointer;
}

.header-left-nav li.active {
  border-bottom-color: var(--main-color);
  color: #333;
}

.header-right {
  display: flex;
  align-items: center;
}

.header-right .header-right-icon {
  width: 20px;
  height: 20px;
  margin-left: 20px;
  background-size: contain;
  background-repeat: no-repeat;
}

.header-right .header-right-icon.search {
  background-image: url(../images/searchIcon.png);
}
.header-right .header-right-icon.bellIcon {
  background-image: url(../images/bellIcon.png);
}
.header-right .header-right-icon.userIcon {
  background-image: url(../images/userIcon.png);
}
/* header end */

/* banner start */
.banner {
  width: 100%;
  height: 300px;
  background-color: var(--main-color-dark);
  background-image: url(../images/banner.jpg);
  margin-bottom: 30px;
  text-align: center;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.banner h1 {
  font-size: 36px;
}

.banner p {
  font-size: 16px;
  margin: 20px 0 40px;
}

.banner .banner-search {
  width: 600px;
  border-radius: 100px;
  background-color: #fff;
  display: flex;
  align-items: center;
  padding: 0 20px;
}

.banner .banner-search select {
  font-size: 16px;
}

.banner .banner-search input {
  flex: 1;
  height: 60px;
  font-size: 16px;
  margin: 0 10px;
}

.banner .banner-search img {
  width: 20px;
}
/* banner end */

/* main start */
.list {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -12px 0;
}

.list li {
  width: 24%;
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
  margin: 0 6px;
}

.list li .cover {
  width: 100%;
  height: 0;
  position: relative;
  padding-bottom: 56.25%;
}

.list li .cover img {
  width: 100%;
  height: 100%;
  position: absolute;
  object-fit: cover;
}

.list li .cover .tag {
  position: absolute;
  right: 0;
  top: 0;
  background: var(--main-color-dark);
  color: #fff;
  border-radius: 0 0 0 4px;
  font-size: 12px;
  padding: 4px 7px;
  z-index: 9;
}

.list li .list-bottom {
  padding: 10px;
  font-size: 16px;
  color: #333;
}

.list li .list-bottom h3 {
  font-size: 16px;
  line-height: 20px;
  height: 40px;
  overflow: hidden;
	text-overflow: ellipsis;
	display: -webkit-box;
	-webkit-line-clamp: 2;  /*行数*/
	-webkit-box-orient: vertical;
  margin-bottom: 8px;
}

.list li .list-bottom p {
  font-size: 12px;
  color: #999;
  text-align: right;
}

.recommend {
  margin: 40px 0 20px;
  background: #f2f4fa;
  padding: 30px;
}

.recommend h1 {
  font-size: 24px;
  margin-bottom: 10px;
}

.recommend .recommend-list {
  display: flex;
  align-items: center;
}

.recommend .recommend-list  li {
  border: 1px solid #eee;
  border-radius: 100px;
  padding: 4px 30px;
  font-size: 14px;
  color: #666;
  margin-right: 20px;
  cursor: pointer;
  background-color: #fff;
}

.recommend .recommend-list  li.active, .recommend .recommend-list  li:hover {
  background: var(--main-color-dark);
  color: #fff;
}

.recommend-content {
  display: flex;
  margin-top: 40px;
}

.recommend-content .recommend-left {
  width: 50%;
  border: 1px solid #eee;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-radius: 4px;
  background: url(../images/recommend-img.png) no-repeat;
  background-size: contain;
}

.recommend-content .recommend-left .recommend-left-content {
  background: #fff;
  padding: 20px;
}

.recommend-content .recommend-left h2 {
  font-weight: normal;
  font-size: 16px;
}

.recommend-content .recommend-left p {
  color: #666;
  margin: 4px 0;
  font-size: 14px;
}

.recommend-content .recommend-left .recommend-left-bottom {
  display: flex;
  align-items: center;
}

.recommend-content .recommend-right {
  flex: 1;
  margin-left: 20px;
}

.recommend-content .recommend-right .recommend-right-item {
  background: #f6f8fe;
  border: 1px solid #eee;
  border-radius: 4px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
}

.recommend-content .recommend-right .recommend-right-item img {
  width: 200px;
  height: 120px;
}

.recommend-content .recommend-right .recommend-right-item > div {
  flex: 1;
  padding: 10px 20px;
}

.recommend-content .recommend-right .recommend-right-item h2 {
  font-weight: normal;
  font-size: 16px;
}

.recommend-content .recommend-right .recommend-right-item p {
  color: #666;
  margin: 5px 0 10px;
  font-size: 14px;
}

.recommend-content .recommend-right .recommend-right-item:last-child {
  margin-bottom: 0;
}

.recommend-content .recommend-right .recommend-right-item .recommend-right-item-bottom {
  display: flex;
  align-items: center;
}
/* main end */

/* footer start */
footer {
  background-color: #31363d;
  color: #fff;
}

footer img {
  margin-right: 50px;
}

.footer-content {
  display: flex;
  align-items: center;
  padding: 40px 0;
  text-align: center;
  font-size: 14px;
  color: #666;
}

.footer-content .footer-right {
  flex: 1;
  display: flex;
}

.footer-content .footer-right ul li {
  text-align: left;
  margin-left: 40px;
  margin-bottom: 10px;
  color: #aaa;
}

.footer-content .footer-right ul li:last-child {
  margin-bottom: 0;
}
/* footer end */