.letter_wrap[data-v-337455f4]{min-height:100vh;padding-top:60px;padding-bottom:78px;background:#f4f5fa;box-sizing:border-box}.red_top_bg[data-v-337455f4]{height:50px;background:#f4f5fa;position:fixed;top:0;left:50%;transform:translateX(-50%);z-index:15}.big_tit[data-v-337455f4]{font-size:16px;font-weight:400;line-height:50px;color:#132235;height:50px;text-align:center;position:relative;top:0}.back_left[data-v-337455f4]{width:44px;height:44px;margin:0;position:absolute;top:0;left:0;background:none;z-index:1000}.back_left[data-v-337455f4]:before{content:"";width:11px;height:11px;border-left:2px solid #071528;border-bottom:2px solid #071528;position:absolute;top:15px;left:17px;transform:rotate(45deg)}.msg_num[data-v-337455f4]{display:none}.msg_box[data-v-337455f4]{width:100%;padding:0 13px;box-sizing:border-box}.msg_box .item[data-v-337455f4]{width:100%;min-height:100px;margin-bottom:8px;padding:15px 14px 12px;border-radius:5px;background:#fff;box-sizing:border-box;overflow:hidden}.msg_box .tips[data-v-337455f4]{min-height:48px;font-size:14px;font-weight:400;line-height:24px;color:#06182b;word-break:break-word}.msg_box .line[data-v-337455f4]{height:1px;margin-top:6px;border-bottom:1px dashed #dadde5}.msg_box .time[data-v-337455f4]{margin-top:7px;font-size:12px;font-weight:400;line-height:18px;color:#5d6f84}