body {
  background: url(../asset/bg2.jpg) no-repeat center/100% 100%;
}

.container {
  width: 870px;
  height: 600px;
  background: #fff;
  display: flex;
  position: relative;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);

  color: #333;
}
.close {
  position: absolute;
  right: 10px;
  top: 10px;
  font-size: 30px;
  color: #aaa;
  background: #eee;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: 50%;
  cursor: pointer;
  transition: 0.2s;
}
.close:hover {
  background: #ccc;
  color: #888;
}

.main {
  width: 600px;
  flex: 0 0 auto;
}
.aside {
  flex: 1 0 auto;
  padding-top: 80px;
  border-left: 1px solid #eee;
}
.aside-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  float: left;
  margin-left: 20px;
  margin-right: 10px;
}
.aside-name {
  font-weight: bold;
  margin-top: 18px;
  font-size: 20px;
  width: 128px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.aside-account {
  color: #ccc;
  margin-top: 5px;
  width: 128px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.main {
  display: flex;
  flex-direction: column;
}
.main-title {
  height: 50px;
  line-height: 50px;
  display: flex;
  align-items: center;
  font-size: 20px;
  background: #eceff1;
  flex: 0 0 auto;
  padding-left: 20px;
}
.main-title img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  margin-right: 10px;
}

.chat-container {
  height: 430px;
  overflow: hidden scroll;
  padding: 20px;
  background: #f5f5f5;
  scroll-behavior: smooth;
}
.chat-container::-webkit-scrollbar {
  width: 5px;
  height: 13px;
}
.chat-container::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.5);
  background-clip: padding-box;
  border-radius: 5px;
}

.chat-item {
  padding-bottom: 25px;
  display: flex;
  position: relative;
  width: 100%;
  margin-bottom: 10px;
}
.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin-right: 10px;
  flex: 0 0 auto;
}
.chat-content {
  font-size: 14px;
  border: 1px solid #d8d8d8;
  padding: 8px;
  background-color: #fff;
  border: 1px solid #d8d8d8;
  border-radius: 6px;
  position: relative;
  filter: drop-shadow(0 0 5px rgba(0, 0, 0, 0.1));
  line-height: 1.5;
  max-width: 450px;
}
.chat-content::after {
  content: '';
  background: inherit;
  position: absolute;
  width: 12px;
  height: 12px;
  border: inherit;
  left: -6px;
  top: 11px;
  transform: rotate(45deg);
  border-right-color: transparent;
  border-top-color: transparent;
}
.chat-date {
  position: absolute;
  color: #ccc;
  font-size: 12px;
  left: 50px;
  bottom: 5px;
}
.chat-item.me {
  flex-direction: row-reverse;
}
.chat-item.me .chat-avatar {
  margin-right: 0;
  margin-left: 10px;
}
.chat-item.me .chat-content {
  background: #98e855;
  border-color: #88cf4d;
}
.chat-item.me .chat-content::after {
  left: auto;
  right: -6px;
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-right-color: inherit;
  border-top-color: inherit;
}
.chat-item.me .chat-date {
  left: auto;
  right: 50px;
}
.msg-container {
  display: flex;
  justify-content: flex-end;
  align-items: end;
  flex: 1 0 auto;
  padding: 20px;
  background: #fff;
  position: relative;
  border-top: 1px solid #eee;
}
.msg-container input {
  position: absolute;
  border: none;
  outline: none;
  resize: none;
  left: 20px;
  top: 20px;
  width: calc(100% - 40px);
  font-size: 16px;
  color: #333;
}
.msg-container button {
  background-color: #59b573;
  width: 68px;
  line-height: 32px;
  color: #fff;
  text-align: center;
  border-radius: 3px;
  cursor: pointer;
  border: none;
  outline: none;
  cursor: pointer;
  margin-left: 10px;
}
.msg-container button:hover {
  background-color: #66c982;
}
.msg-container button:active {
  background-color: #458e5a;
}