(css)AI智能问答页面布局

效果：

html

<!-- AI框 -->
 <div class="chat-top">
   <div class="chat-main" ref="chatList">
     <div v-if="!chatList.length" class="no-message">
       <span>欢迎使用</span>
       <span>ESG实践智能交互系统</span>
       <img src="@/assets/image/light.png" alt />
     </div>
     <div
       v-for="(item, index) in chatList"
       class="chat-item"
       :class="[index%2===1 ? 'question' :'answer']"
       :key="index"
     >
       <div class="header-img-wrapper">
         <div class="wrapper-img">
           <el-image v-if="index%2===1" :src="otherImg" :fit="fit" class="header-img"></el-image>
         </div>
       </div>
       <div class="content">
         <!-- <span class="itemTime" v-if="index%2===1">{{ itemTime }}</span> -->
         <div class="content-width">{{ item.content }}</div>
         <div class="indicator"></div>
       </div>
       <div class="header-img-wrapper">
         <div class="wrapper-img">
           <el-image v-if="index%2===0" :src="meImg" :fit="fit" class="header-img"></el-image>
         </div>
       </div>
     </div>
   </div>
   <el-row class="chat-input">
     <el-col :span="22">
       <el-input
         v-model.trim="searchValue"
         placeholder="请输入您想咨询的问题..."
         class="input-with-select"
         @keyup.enter.native="onSend"
         :disabled="disabled"
       ></el-input>
     </el-col>
     <el-col :span="2" class="sendImg">
       <el-image :src="sendImg" :fit="fit" v-if="!isQuestionIng" @click="onSend"></el-image>
     </el-col>
   </el-row>
 </div>

css

/* 中区 */
.chat-wrapper {
  height: 100%;
  // AI区
  .chat-top {
    width: 100%;
    height: 88%;
    background-image: url("../assets/image/chat-main-1.png");
    background-size: 100% 100%;
    padding: 20px;
    font-size: 16px;
    font-family: Regular-font;
    .AITip {
      height: 10%;
      color: #01ffff;
      font-size: 24px;
      padding-bottom: 4px;
      display: flex;
      justify-content: center;
      align-items: flex-end;
      line-height: 1;
    }
    .chat-main {
      width: 100%;
      height: 84%;
      padding: 20px 30px;
      overflow-y: auto;
      background-image: url("../assets/image/chat-main-2.png");
      background-size: 100% 100%;
      .no-message {
        width: 50%;
        height: 100%;
        font-size: 40px;
        font-family: iFonts;
        text-align: center;
        margin: 0 auto;
        display: flex;
        justify-content: center;
        flex-direction: column;
        span:nth-child(1) {
          font-size: 34px;
        }
        img {
          display: block;
          width: 100%;
          height: 14px;
          margin-top: -12px;
        }
      }
      // 单条信息
      .chat-item {
        display: flex;
        justify-content: space-between;
        text-align: left;
        position: relative;
        margin-bottom: 50px;
        // 头像
        .header-img-wrapper {
          width: 60px;
          height: 65px;
          .wrapper-img {
            background-image: url("../assets/image/head-portrait-background.png");
            background-size: 100% 100%;
            display: flex;
            justify-content: center;
            align-items: flex-end;
            .header-img {
              width: 60px;
              height: 60px;
            }
          }
        }
        // 内容
        .content {
          flex: 1;
          color: #ffffff;
          margin: 0 30px;
          padding: 16px 20px;
          //   border: 2px solid #2da8f0;
          border: 2px solid rgba(31, 159, 191, 0.9);
          border-radius: 10px;
          background: rgba(22, 68, 124, 0.8);
          //   background: linear-gradient(0deg, #125eab 0%, #3a94f4 100%);
          line-height: 30px;
          position: relative;
          .itemTime {
            position: absolute;
            top: -36px;
            left: 46%;
            width: 50px;
            height: 20px;
            background: rgba(22, 68, 124, 0.8);
            text-align: center;
            font-size: 14px;
            line-height: 18px;
          }
        }
      }
      .chat-item.question .indicator {
        width: 0;
        height: 0;
        border-top: 10px solid transparent;
        border-bottom: 10px solid transparent;
        border-right: 10px solid rgba(31, 159, 191, 0.9);
        // border-right: 10px solid #2da8f0;
        position: absolute;
        left: -10px;
        top: 16px;
      }
      .chat-item.answer .indicator {
        width: 0;
        height: 0;
        border-top: 10px solid transparent;
        border-bottom: 10px solid transparent;
        border-left: 10px solid rgba(31, 159, 191, 0.9);
        // border-left: 10px solid #2da8f0;
        position: absolute;
        right: -10px;
        top: 16px;
      }

      .chat-item:not(:first-child) {
        margin-top: 38px;
      }
    }
    .chat-input {
      width: 100%;
      height: 11%;
      background-image: url("../assets/image/chat-main-3.png");
      background-size: 100% 100%;
      padding-right: 2%;
      margin: 3% auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      /deep/ .el-input__inner {
        background-color: transparent;
        border: none;
        color: #fff;
      }
      .sendImg {
        width: 26px;
        height: 26px;
        cursor: pointer;
      }
    }
  } 
}