.back-header[data-v-2578a492]{display:flex;align-items:center;justify-content:flex-start;width:100%;height:3.714286rem;box-sizing:border-box;padding:0 1.142857rem;font-size:1.214286rem;font-weight:700;line-height:1;color:#303133;background:#fff;cursor:pointer;user-select:none}.back-header--sticky[data-v-2578a492]{position:sticky;top:0;z-index:20;flex-shrink:0}.back-header i[data-v-2578a492]{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:1.428571rem;height:1.428571rem;margin-right:.428571rem;font-size:1.285714rem;font-weight:700;line-height:1;color:inherit}.back-header i[data-v-2578a492]:before{display:block;line-height:1}.back-header__title[data-v-2578a492]{display:inline-flex;align-items:center;min-width:0;height:1.428571rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:1.214286rem;line-height:1.428571rem}.back-header__extra[data-v-2578a492]{display:flex;align-items:center;flex-shrink:0;margin-left:auto;max-width:55%}.back-header--with-extra[data-v-2578a492]{cursor:default}.back-header--with-extra .back-header__title[data-v-2578a492],.back-header--with-extra .el-icon-back[data-v-2578a492]{cursor:pointer}.back-header[data-v-2578a492]:hover{color:#101010}