.app-main[data-v-0b9ab477]{margin:0 auto;max-width:750px;position:relative}.app-head .head-lang[data-v-0b9ab477]{position:absolute;right:20px;top:20px;z-index:2}.app-head .head-lang .lang-btn[data-v-0b9ab477]{background-color:#0460eb;background:#0460eb;border:2px solid #fff;color:#fff;font-size:12px;padding:0 8px}