html,
body {
  padding: 0;
  margin: 0;
  font-family: 'Helvetica Neue', Helvetica, Arial, 'Microsoft Yahei',
    'Hiragino Sans GB', 'PingFang SC', 'WenQuanYi Micro Hei', sans-serif;
  background: #ffffff;
  scroll-behavior: smooth;
}
ul,
li {
  list-style: none;
}
input,
select,
textarea {
  font-family: inherit;
  border-radius: 0;
  appearance: none;
  -webkit-appearance: none;
  outline: 0;
  border: 0;
}
a {
  text-decoration: none;
  color: #313131;
}
* {
  font-size: 14px;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  padding: 0;
  margin: 0;
  color: #313131;
  -webkit-tap-highlight-color: transparent;
  font-weight: normal;
}
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
  background-color: transparent;
}
::-webkit-scrollbar-thumb {
  border-radius: 2px;
  background-color: #999999;
}
::selection {
  background-color: #4a4a4a;
  color: #f9f9f9;
}
body::-webkit-scrollbar {
  display: none;
}
.select-none {
  user-select: none;
  -webkit-user-select: none;
}
.animation-fade-up {
  animation-timing-function: ease;
  animation-duration: 800ms;
  animation-fill-mode: both;
  animation-name: fade-up;
}
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(36px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@-webkit-keyframes fade-up {
  from {
    opacity: 0;
    -webkit-transform: translateY(36px);
  }
  to {
    opacity: 1;
    -webkit-transform: none;
  }
}
.hover-underline {
  position: relative;
}
.hover-underline:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  bottom: 0;
  left: 0;
  background-color: #313131;
  visibility: hidden;
  transform: scaleX(0);
  -webkit-transform: scaleX(0);
  transition: transform 200ms ease-in-out;
  -webkit-transition: transform 200ms ease-in-out;
}
.hover-underline:hover:after {
  visibility: visible;
  transform: scaleX(1);
  -webkit-transform: scaleX(1);
}
.container {
  width: 100%;
  margin: 0 auto;
  max-width: 560px;
}
.header {
  margin-top: 40px;
  margin-bottom: 50px;
}
.header .logo {
  display: inline-block;
  vertical-align: middle;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
  transition: transform 500ms linear;
  -webkit-transition: transform 500ms linear;
}
.header .logo:hover {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
}
.header input {
  display: none;
}
.header .title {
  display: inline-block;
  vertical-align: middle;
  display: none;
}
.header .menu {
  display: inline-block;
  font-size: 0;
}
.header .menu a {
  font-size: 16px;
  display: inline-block;
  margin: 0 13px;
  position: relative;
}
.header .menu a:before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 3px;
  background-color: #313131;
  position: absolute;
  left: -13.5px;
  top: 6.5px;
}
.header .menu a:first-child {
  margin-left: 20px;
}
.header .menu a:last-child {
  margin-right: 0;
}
.header .menu a:first-child:before {
  display: none;
}
.header .menu-togger {
  display: none;
}
.footer {
  margin-top: 20px;
  margin-bottom: 4px;
  font-size: 0;
}
.footer > * {
  font-size: 14px;
  margin: 0 4px;
  position: relative;
}
.footer > *:first-child {
  margin-left: 0;
}
.footer > *:last-child {
  margin-right: 0;
}
.footer a:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  bottom: 0;
  left: 0;
  background-color: #313131;
}
.footer #moveUp {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  background: #e8e6e6;
  transition: bottom 500ms ease-in-out 0ms;
  -webkit-transition: bottom 500ms ease-in-out 0ms;
}
.footer #moveUp::after {
  position: absolute;
  top: 8px;
  left: 7px;
  content: '';
  border-right: 8px solid #e8e6e6;
  border-bottom: 13px solid #949393;
  border-left: 8px solid #e8e6e6;
}

.page-index {
  min-height: calc(100vh - 180px);
}

.page-title {
  font-size: 20px;
  margin: 14px 0;
  font-weight: bold;
}
.list-group {
  margin-bottom: 14px;
}
.list-group > h2 {
  font-size: 15px;
  font-weight: bold;
  margin: 14px 0;
}
.list-group li {
  padding: 10px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.list-group li .date {
  padding: 0 8px 0 16px;
  color: #666666;
  font-size: 15px;
  vertical-align: middle;
}
.list-group li .title {
  font-size: 15px;
  vertical-align: middle;
}
.list-group li .categorie {
  font-size: 12px;
  color: #666666;
  vertical-align: middle;
  margin-left: 8px;
}
.page-categories > ul {
  margin: 14px 0;
  font-size: 0;
  word-break: break-all;
}
.page-categories > ul li {
  display: inline-block;
  padding: 5px 12px 5px 0;
}
.page-categories > ul li a {
  display: inline;
  font-size: 15px;
  position: relative;
}
.page-categories > ul li a:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  bottom: 0;
  left: 0;
  background-color: #313131;
}
.page-search #search-input {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0 0 10px 0;
  margin-bottom: 28px;
  border-bottom: 2px solid #eeeeee;
}
.page-chat form {
  display: block;
  padding: 10px;
  border: 1px solid #dddddd;
  position: relative;
}
.page-chat form input {
  font-size: 13px;
  display: block;
  border-bottom: 1px dashed #cccccc;
  width: 100%;
  line-height: 30px;
  margin-bottom: 10px;
  transition: border 300ms linear;
}
.page-chat form input:focus {
  border-bottom: 1px dashed #444;
}
.page-chat form textarea {
  display: block;
  width: 100%;
  line-height: 1.8;
  resize: none;
  font-size: 13px;
}
.page-chat form span {
  cursor: pointer;
  position: absolute;
  right: 8px;
  bottom: 8px;
  background-color: #ededed;
  font-size: 13px;
  padding: 5px 16px;
  border-radius: 16px;
  transition: all 200ms ease-in-out;
}
.page-chat form span:hover {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}
.page-chat .page-chat-load-container {
  margin-top: 18px;
  margin-bottom: 14px;
  text-align: center;
}
.page-chat .page-chat-load {
  display: inline-block;
  cursor: pointer;
  background-color: #ededed;
  font-size: 13px;
  padding: 5px 16px;
  border-radius: 16px;
}
.page-chat-list li {
  margin-top: 16px;
  padding: 14px;
  border: 1px solid #dddddd;
}
.page-chat-list li .info {
  height: 35px;
  position: relative;
}
.page-chat-list li .head {
  height: 100%;
  width: auto;
  border-radius: 50%;
  vertical-align: middle;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
}
.page-chat-list li .name {
  cursor: default;
  display: inline-block;
  color: #5f5f5f;
  font-size: 13px;
  margin-left: 8px;
  max-width: 110px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  vertical-align: middle;
}
.page-chat-list li .name-true {
  cursor: pointer;
  border-bottom: 1px solid #313131;
}
.page-chat-list li .date {
  height: 100%;
  float: right;
}
.page-chat-list li .date::before {
  content: ' ';
  display: inline-block;
  vertical-align: middle;
  height: 100%;
}
.page-chat-list li .date span {
  color: #b3b3b3;
  vertical-align: middle;
}
.page-chat-list li .content {
  word-break: break-all;
  font-size: 13px;
  margin-top: 10px;
}
@media screen and (max-width: 600px) {
  .container {
    max-width: 520px;
  }
}
@media screen and (max-width: 560px) {
  .container {
    max-width: 560px;
    padding-left: 15px;
    padding-right: 15px;
  }
  body {
    padding-top: 54px;
    font-size: 12px;
  }
  .header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    width: 100%;
    background-color: #fff;
    text-align: center;
    margin: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    padding-top: 10px;
    padding-bottom: 10px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
  }
  .header .logo {
    width: 32px;
    height: 32px;
    position: absolute;
    left: 15px;
  }
  .header .title:before {
    content: ' ';
    display: inline-block;
    vertical-align: middle;
    height: 100%;
    visibility: hidden;
  }
  .header .title {
    font-size: 13px;
    vertical-align: middle;
    display: inline-block;
    height: 32px;
  }
  .header .menu-togger {
    position: absolute;
    right: 15px;
    width: 32px;
    height: 32px;
    display: inline-block;
    text-align: right;
  }
  .header .menu-togger:before {
    content: ' ';
    height: 100%;
    width: 1px;
    display: inline-block;
    vertical-align: middle;
    visibility: hidden;
  }
  .header .menu-togger:after {
    content: '';
    width: 20px;
    height: 2px;
    border-top: 2px solid #cccccc;
    border-bottom: 2px solid #cccccc;
    background-color: #cccccc;
    padding: 5px 0;
    background-clip: content-box;
    display: inline-block;
    vertical-align: middle;
  }
  .header .menu {
    position: fixed;
    right: 15px;
    top: 75px;
    display: inline-block;
    /*透明度为0，点击无效*/
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 0px 5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 300ms ease-in-out;
    -webkit-transition: all 300ms ease-in-out;
  }
  .header .menu a {
    background-color: #ffffff;
    text-align: center;
    display: block;
    margin: 0 !important;
    padding: 8px 22px;
    font-size: 12px;
    transition: background-color 400ms linear;
    -webkit-transition: background-color 400ms linear;
  }
  .header .menu a:hover {
    background-color: #f8f8f8;
  }
  .header .menu a:before {
    display: none;
  }
  .header .menu a:after {
    display: none;
  }
  .header input:checked ~ .menu {
    top: 65px;
    pointer-events: auto;
    opacity: 1;
  }
  .footer > * {
    font-size: 12px;
  }
  .page-index {
    min-height: calc(100vh - 115px);
  }
  .page-title {
    font-size: 18px;
  }
  .list-group > h2 {
    font-size: 14px;
  }
  .list-group li .date,
  .list-group li .title {
    font-size: 12px;
  }
  .list-group li .categorie {
    font-size: 10px;
  }
  .list-group li {
    padding: 8px 0;
  }
  .page-categories > ul li a {
    font-size: 12px;
  }
  .page-search #search-input {
    font-size: 12px;
    padding: 0 0 8px 0;
    margin-bottom: 25px;
    border-bottom: 2px solid #eaeaea;
  }
  .page-chat form input,
  .page-chat form textarea,
  .page-chat-list li .name {
    font-size: 12px;
  }
  .page-chat form span,
  .page-chat-list li .date span,
  .page-chat .page-chat-load {
    font-size: 11px;
  }
  .page-chat-list li .content {
    font-size: 11px;
    line-height: 1.8;
  }
  .page-chat-list li {
    padding: 10px;
  }
  .page-chat-list li .info {
    height: 32px;
  }
}