[data-v-618b3942]{font-family:system-ui}._w[data-v-618b3942]{width:1100px;margin:0 auto}.item[data-v-618b3942]{box-sizing:border-box;margin-bottom:13px;width:354px;display:flex;align-items:flex-start;flex-direction:column}.item .vide_prt[data-v-618b3942]{width:100%;height:225px;background:#000;border-radius:4px;margin-bottom:3px;display:flex;align-items:center}.item .vide_prt video[data-v-618b3942]{width:354px;vertical-align:bottom}.item ._title[data-v-618b3942]{line-height:30px;color:#1c1c1c;font-size:16px}[data-v-4d892f32]{font-family:system-ui}._w[data-v-4d892f32]{width:1100px;margin:0 auto}.about[data-v-4d892f32]{padding-bottom:20px;width:1110px;margin:0 auto}nav[data-v-4d892f32]{display:flex;margin-top:20px;margin-bottom:20px;padding-left:7px}nav>div[data-v-4d892f32]{margin-right:40px;position:relative;line-height:40px;cursor:pointer}nav>div[data-v-4d892f32]:hover{color:#e32d37}nav>div[data-v-4d892f32]:hover:after{display:block}nav>div[data-v-4d892f32]:after{content:"";display:none;border-bottom:2px solid #e32d37;position:absolute;width:99%;bottom:0}nav .active[data-v-4d892f32]{color:#e32d37}nav .active[data-v-4d892f32]:after{content:"";display:block;border-bottom:2px solid #e32d37;position:absolute;width:99%;bottom:0}.item_wrap[data-v-4d892f32]{display:flex;flex-wrap:wrap;justify-content:space-around;min-height:calc(100vh - 367px)}@media screen and (max-width:1200px){.item_wrap[data-v-4d892f32]{display:block}.item_wrap .item[data-v-4d892f32]{float:left;margin-right:10px}}