.banner[data-v-7caef22d]{width:100%}.letter_container[data-v-7caef22d]{margin:20px auto;background-color:#fff;padding:20px;box-sizing:border-box}.letter_container video[data-v-7caef22d]{width:100%;margin-bottom:20px}.letter_container .header[data-v-7caef22d]{padding-bottom:20px;box-sizing:border-box;border-bottom:1px solid #eee;text-align:center}.letter_container .header .title[data-v-7caef22d]{color:#333;font-size:20px;font-weight:500}.letter_container .header .publish_time[data-v-7caef22d]{color:#666;margin-top:14px}.letter_container .content[data-v-7caef22d]{color:#333;padding:30px 0;box-sizing:border-box}