.upper_box{width:100%;display:flex;flex-direction:column}.upper_box .upper_box_first{display:flex;min-width:260px;height:663px}.upper_box .upper_box_first .middle_box{display:flex;flex-direction:column;margin:0 10px;width:100%;height:100%}.upper_box .upper_box_second{margin-top:20px}.upper_box .upper_box_third{margin-top:20px;height:258px}.box[data-v-5c3157e0]{width:100%;min-width:1200px;height:100%;position:relative}.box .content[data-v-5c3157e0]{width:1200px;margin:0 auto}.box .img[data-v-5c3157e0]{background:url(../img/header-bg.e111d635.png);height:501px;background-size:100% 100%;width:100%;min-width:1200px;z-index:-1;position:absolute;top:-140px}