html, body {
  height: 100%;
}
body {
  min-width: 1000px;
  height: 100%;
  margin: 0 auto;
  line-height: 1.42857143;
  font-family: "PingFangSC-Regular", "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;;
  font-size: 14px;
  color: #333;
  background-image: -webkit-linear-gradient(-179deg, rgba(79,76,74,0.4) 0%, #272524 71%);
  background-image: linear-gradient(-179deg, rgba(79,76,74,0.4) 0%, #272524 71%);
  background-attachment: fixed;
}

.left {
  float: left;
}

.right {
  float: right;
}

.inline-block {
  display: inline-block;
}

.relative {
  position: relative;
}

.text-center {
  text-align: center;
}

.clearfix {
  zoom: 1
}
  
.clearfix:before,.clearfix:after {
  content: "";
  display: table
}
  
.clearfix:after {
  clear: both
}

.text-nowrap {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.aside {
  position: fixed;
  top: 0;
  height: 100%;
  width: 20%;
}

.main {
  margin: 0 20%;
  background: #eee;
  box-shadow: 0 1px 6px 0 rgba(0,0,0,0.30);
  min-height: 100%;
}

.title {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  height: 50px;
  padding: 0 20px 0 24px;
  line-height: 50px;
  background: #f6f6f6;
  box-shadow: inset 0 -1px 0 0 rgba(209,209,209,0.50);
  z-index: 10;
}

.action-bar {
  margin-top: 14px;
}

.tab-item {
  height: 20px;
  width: 20px;
  margin-right: 28px;
  vertical-align: top;
  background-size: 100%;
}

.action-bar > .tab-item:last-child {
  margin-right: 0;
}

#message {
  background-image: url('../img/all_normal.png')
}

#image {
  background-image: url('../img/image_normal.png')
}

#video {
  background-image: url('../img/video_normal.png')
}

#message.selected-item {
  background-image: url('../img/all_selected.png')
}

#image.selected-item {
  background-image: url('../img/image_selected.png')
}

#video.selected-item {
  background-image: url('../img/video_selected.png')
}

.message-text-container {
  margin: 15px 0;
}

.message-container, .image-container, .video-container {
  display: none;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  padding: 60px 10px 10px;
  /* min-height: 100%; */
  max-height: 100vh;
  overflow-y: scroll;
  z-index: 0;
}

.current-tab {
  position: static;
  display: block;
  opacity: 1;
  z-index: 1;
}

.message-time {
  margin: 15px auto 20px;
  width: 110px;
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  padding: 4px;
  line-height: 18px;
  font-size: 12px;
  color: #ffffff;
}

.message-tip-container {
  max-width: 40%;
  margin: 15px auto 20px;
}

.message-tip {
  display: inline-block;
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  padding: 5px 10px;
  line-height: 18px;
  font-size: 12px;
  color: #ffffff;
}

.message-avatar {
  width: 40px;
  height: 40px;
  border-radius: 2px;
  -moz-border-radius: 2px;
  -webkit-border-radius: 2px;
  background-image: url('../img/wechat/person.jpg');
  color: transparent;
  background-size: 100% auto;
  cursor: pointer;
}

.arrow-right {
  margin-top: 10px;
  width: 0;
  height: 0;
  line-height: 0;
  font-size: 0;
  border: 8px solid;
  border-color: rgba(0,0,0,0) rgba(0,0,0,0) rgba(0,0,0,0) rgba(177,227,124,1);
}

.arrow-left {
  margin-top: 10px;
  width: 0;
  height: 0;
  line-height: 0;
  font-size: 0;
  border: solid 8px;
  border-color: rgba(0,0,0,0) rgba(255,255,255,1) rgba(0,0,0,0) rgba(0,0,0,0);
}

.message-content {
  max-width: 420px;
  word-wrap: break-word;
  background-color: #b1e37c;
  padding: 10px;
  border-radius: 2px;
}

.message-content-left {
  max-width: 420px;
  word-wrap: break-word;
  background-color: #ffffff;
  padding: 10px;
  border-radius: 2px;
}

.message-img {
  width: 180px;
  border-radius: 2px;
  margin: 0px 10px;
  cursor: pointer;
  cursor: -webkit-zoom-in;
  cursor: -moz-zoom-in;
  vertical-align: top;
}

.message-video {
  width: 240px;
  border-radius: 2px;
  margin: 0px 10px;
}

.message-link {
  width: 240px;
  min-height: 40px;
  background-color: #ffffff;
  padding: 10px;
  border-radius: 2px;
  margin: 0px 10px;
  padding-bottom: 0;
  text-decoration: none;
  color: #333;
}

.message-link h4 {
  font-size: 15px;
  margin: 0;
  padding: 5px 0px;
  font-weight: 500;
  padding-bottom: 0;
  word-wrap: break-word;
}

.message-link-description {
  min-height: 50px;
  font-size: 12px;
  color: #9c9c9c;
  margin: 0;
  padding-bottom: 10px;
  word-break: break-all;
}

.message-link-icon {
  margin-top: 4px;
  width: 40px;
  height: 40px;
  background-image: url('../img/wechat/link.jpg');
  background-size: 100%;
}

.message-sp-icon {
  margin-top: 4px;
  width: 40px;
  height: 40px;
  background-image: url('../img/wechat/wechat-icon.jpg');
  background-size: 100%;
}

.red-bag {
  width: 240px;
  background-color: #fff;
  border-radius: 2px;
  display: inline-block;
  margin: 0px 10px;
}

.red-bag-title {
  background-color: #fc9d2b;
  border-radius: 2px 2px 0px 0px;
  padding: 10px;
}

.red-bag-img {
  width: 40px;
  height: 47px;
  background-image: url('../img/wechat/redbag.png');
  background-size: 100%;
}

.red-bag-text {
  margin-left: 50px;
}

.red-bag-text h4 {
  font-size: 15px;
  margin: 0;
  padding: 0;
  color: #fff;
  max-width: 180px;
  min-height: 50px;
  font-weight: 500;
  word-wrap: break-word;
}

.red-bag-tip {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
}

.red-bag-bottom {
  line-height: 22px;
  text-indent: 10px;
  font-size: 12px;
  color: #999;
}

.red-bag-received {
  opacity: 0.5;
}

.red-bag-icon {
  width: 12px;
  height: 14px;
  margin-top: 1px;
  margin-right: 5px;
  background-image: url('../img/wechat/redbag.png');
  background-size: 100%;
  vertical-align: top;
}

.red-bag-color {
  color: #fc9d2b;
}

.file-message {
  max-width: 280px;
  min-height: 40px;
  background-color: #fff;
  padding: 10px;
  border-radius: 2px;
  margin: 0px 10px;
}

.file-img {
  width: 50px;
  height: 50px;
  background-size: 100%;
  background-image: url('../img/wechat/unknown.jpg');
}

.file-zip {
  background-image: url('../img/wechat/zip.jpg');
}

.file-txt {
  background-image: url('../img/wechat/txt.jpg');
}

.file-ppt, .file-pptx {
  background-image: url('../img/wechat/ppt.jpg');
}

.file-doc, .file-docx {
  background-image: url('../img/wechat/doc.jpg');
}

.file-pdf {
  background-image: url('../img/wechat/pdf.jpg');
}

.file-xls, .file-xlsx {
  background-image: url('../img/wechat/xls.jpg');
}

.file-unknown {
  background-image: url('../img/wechat/unknown.jpg');
}

.file-name {
  margin-left: 10px;
}

.file-name h4 {
  line-height: 20px;
  font-size: 15px;
  margin: 5px 0 0;
  padding: 0;
  font-weight: 500;
  max-width: 180px;
  word-wrap: break-word;
}

.file-size {
  font-size: 12px;
  color: #9c9c9c;
  margin-top: 5px;
}

.voice-img {
  min-width: 20px;
  max-width: 240px;
  height: 20px;
  background-size: 20px auto;
  background-repeat: no-repeat;
  vertical-align: top;
  cursor: pointer;
}

.voice-right-img {
  background-image: url('../img/wechat/voice_right.png')
}

.voice-img-playing.voice-right-img {
  background-image: url('../img/wechat/voice_right_click.gif')
}

.voice-left-img {
  background-image: url('../img/wechat/voice_left.png')
}

.voice-img-playing.voice-left-img {
  background-image: url('../img/wechat/voice_left_click.gif')
}

.voice-duration {
  position: absolute;
  top: 0;
  line-height: 40px;
  color: #7f7f7f;
}

.voice-duration-right {
  left: -8px;
  transform: translateX(-100%);
}

.voice-duration-left {
  right: -8px;
  transform: translateX(100%);
}

.user-card {
  width: 240px;
  background-color: #fff;
  border-radius: 2px;
  display: inline-block;
  margin: 0px 10px;
}

.user-card-title {
  border-radius: 2px 2px 0px 0px;
  padding: 10px;
}

.user-card-img {
  width: 40px;
  height: 40px;
}

.user-card-text {
  margin-left: 50px;
}

.user-card-text h4 {
  line-height: 20px;
  font-size: 15px;
  margin: 0;
  padding: 0;
  color: #333;
  max-width: 180px;
  min-height: 50px;
  font-weight: 500;
  word-wrap: break-word;
}

.user-card-tip {
  font-size: 12px;
  color: #999;
}

.user-card-bottom {
  line-height: 22px;
  text-indent: 10px;
  font-size: 12px;
  color: #999;
  border-top: 1px solid #e4e4e4;
}

.message-location {
  width: 240px;
  min-height: 40px;
  background-color: #ffffff;
  padding: 10px;
  border-radius: 2px;
  margin: 0px 10px;
  text-decoration: none;
  color: #333;
}

.message-location h4 {
  font-size: 15px;
  margin: 0;
  padding: 5px 0px;
  font-weight: 500;
  word-wrap: break-word;
}

.message-location-description {
  font-size: 12px;
  color: #9c9c9c;
  margin: 0;
  padding: 0;
}

.message-location-icon {
  margin-top: 4px;
  width: 40px;
  height: 40px;
  background-image: url('../img/wechat/map.jpg');
  background-size: 100%;
}

.share-location {
  color: #999;
}

.transfer-img {
  width: 40px;
  height: 40px;
  background-image: url('../img/wechat/transfer.png');
  background-size: 100%;
  vertical-align: top;
  margin-top: 3px;
}

.transfer-ok-img {
  width: 40px;
  height: 40px;
  background-image: url('../img/wechat/transfer_ok.png');
  background-size: 100%;
  vertical-align: top;
  margin-top: 3px;
}

.transfer-title {
  background-color: #fc9d2b;
  border-radius: 2px 2px 0px 0px;
  padding: 10px;
}

.transfer-title h4 {
  font-size: 16px;
  margin: 0;
  padding: 0;
  color: #fff;
  max-width: 180px;
  min-height: 50px;
  font-weight: 500;
  word-wrap: break-word;
}

.current-year > ul {
  display: block;
}

.video-item-container, .image-item-container {
  width: 33.33333333%;
  box-sizing: border-box;
}

.video-title {
  float: left;
  width: 100%;
  line-height: 50px;
  font-family:PingFangSC-Regular;
  font-size:16px;
  color:#333333;
}

.video-item-container > div, .image-item-container > div {
  margin: 0 5px 5px 0;
}

.video-item-container > div {
  overflow: hidden;
}

.place-holder {
  padding: 50%;
  background-size: cover;
  background-position: center;
}

.video-item, .image-item {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 100%;
  margin: auto;
}

.image-item {
  opacity: 0;
  bottom: auto;
  min-height: 100%;
}

.play-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/wechat/playbtn.png');
  background-size: 50px auto;
  background-repeat: no-repeat;
  background-position: center;
  background-color: rgba(0,0,0,0.2);
  z-index: 1;
}

.timeline-container {
  display: none;
  margin: 60px 0 10px 20px;
  font-family: PingFangSC-Semibold;
  font-size: 14px;
  color: #fff;
}

.current-timeline {
  display: block;
}

.timeline-container::before {
  content: ' ';
  position: absolute;
  top: 6px;
  left: -4px;
  width: 4px;
  height: 100%;
  height: -webkit-calc(100% - 15px);
  height: -moz-calc(100% - 15px);
  height: -ms-calc(100% - 15px);
  height: calc(100% - 15px);
  background-color: rgba(0,0,0,0.2);
}

.timeline-year::before {
  display: inline-block;
  content: ' ';
  width: 4px;
  height: 4px;
  border: 2px solid rgba(0,0,0,0.2);
  border-radius: 4px;
  background-color: rgba(0,0,0,0.2);
  position: absolute;
  top: 6px;
  left: -14px;
}

.current-timeline-year::before {
  border: 2px solid rgba(0,0,0,0.5);
  background-color: #fee444;
}

.timeline-year {
  margin-left: 8px;
}

.timeline-year > ul {
  display: none;
  transition: all 0.5s;
}

.timeline-year > h4 {
  line-height: 21px;
  font-size: 13px;
  cursor: pointer;
}

.current-timeline-year > ul {
  display: block;
}

.timeline-month {
  color: rgba(255,255,255,0.4);
  margin-left: 7px;
  line-height: 20px;
  font-size: 12px;
}

.current-timeline-month {
  color:#fee444;
}

.current-timeline-month::before {
  display: inline-block;
  content: ' ';
  width: 2px;
  height: 2px;
  border: 2px solid rgba(0,0,0,0.5);
  border-radius: 4px;
  position: absolute;
  top: 6px;
  left: -20px;
  background-color: #fee444;
}

#prev_image, #next_image {
  position: absolute;
  top: 0;
  width: 50px;
  height: 50px;
  background: transparent;
  border: 1px solid #fff;
  border-radius: 50%;
  bottom: 0;
  margin: auto;
  background-color: rgba(255,255,255,0.2);
  background-size: 60% auto;
  background-repeat: no-repeat;
  background-position: center;
  z-index: 100;
}

#prev_image {
  left: 20px;
  background-image: url(../img/back.png);
}

#next_image {
  right: 20px;
  background-image: url(../img/next.png);
}