:root{--vt-c-white: #ffffff;--vt-c-white-soft: #f8f8f8;--vt-c-white-mute: #f2f2f2;--vt-c-black: #181818;--vt-c-black-soft: #222222;--vt-c-black-mute: #282828;--vt-c-indigo: #2c3e50;--vt-c-divider-light-1: rgba(60, 60, 60, .29);--vt-c-divider-light-2: rgba(60, 60, 60, .12);--vt-c-divider-dark-1: rgba(84, 84, 84, .65);--vt-c-divider-dark-2: rgba(84, 84, 84, .48);--vt-c-text-light-1: var(--vt-c-indigo);--vt-c-text-light-2: rgba(60, 60, 60, .66);--vt-c-text-dark-1: var(--vt-c-white);--vt-c-text-dark-2: rgba(235, 235, 235, .64)}:root{--color-background: var(--vt-c-white);--color-background-soft: var(--vt-c-white-soft);--color-background-mute: var(--vt-c-white-mute);--color-border: var(--vt-c-divider-light-2);--color-border-hover: var(--vt-c-divider-light-1);--color-heading: var(--vt-c-text-light-1);--color-text: var(--vt-c-text-light-1);--section-gap: 160px}@media (prefers-color-scheme: dark){:root{--color-background: var(--vt-c-black);--color-background-soft: var(--vt-c-black-soft);--color-background-mute: var(--vt-c-black-mute);--color-border: var(--vt-c-divider-dark-2);--color-border-hover: var(--vt-c-divider-dark-1);--color-heading: var(--vt-c-text-dark-1);--color-text: var(--vt-c-text-dark-2)}}*,*:before,*:after{box-sizing:border-box;margin:0;font-weight:400}body{min-height:100vh;color:var(--color-text);background:var(--color-background);transition:color .5s,background-color .5s;line-height:1.6;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:15px;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.text-hidden{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}*{margin:0;padding:0}.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden}.fl{float:left}.fr{float:right}.alfont{font-family:aifont}.pr{position:relative}.pa{position:absolute}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.flex-ac{display:flex;align-items:center!important}.flex-jc{display:flex;justify-content:center}.flex-jc-sb{display:flex;justify-content:space-between}.flex-jc-se{display:flex;justify-content:space-evenly}.flex-jc-ac{display:flex;justify-content:center;align-items:center}.flex-jc-sa{display:flex;justify-content:space-around}.flex-warp{display:flex;flex-wrap:wrap}.flex-rr{flex-direction:row-reverse}.center{max-width:1200px;margin:0 auto}.bai{color:#fff}.hei{color:#272c4a}.tc{text-align:center}.letter2{letter-spacing:.2em}a{text-decoration:none;outline:none;color:#fff}.fw{font-weight:700}.fs18{font-size:18px}.fs22{font-size:22px}.fs26{font-size:26px}.fs30{font-size:30px}.pointer{cursor:pointer}.boxs{box-shadow:0 2px 16px #0000001a}.text-hidden-2,.text-hidden-3,.text-hidden-4{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;word-break:break-all}.text-hidden-2{-webkit-line-clamp:2}.text-hidden-3{-webkit-line-clamp:3}.text-hidden-4{-webkit-line-clamp:4}.padding-0{padding:0}.padding-left-0{padding-left:0}.padding-xs{padding:10px}.padding-sm{padding:20px}.padding{padding:30px}.padding-lg{padding:40px}.padding-xl{padding:50px}.padding-top-xs{padding-top:10px}.padding-top-sm{padding-top:20px}.padding-top{padding-top:30px}.padding-top-lg{padding-top:40px}.padding-top-xl{padding-top:50px}.padding-right-xs{padding-right:10px}.padding-right-sm{padding-right:20px}.padding-right{padding-right:30px}.padding-right-lg{padding-right:40px}.padding-right-xl{padding-right:50px}.padding-bottom-xs{padding-bottom:10px}.padding-bottom-sm{padding-bottom:20px}.padding-bottom{padding-bottom:30px}.padding-bottom-lg{padding-bottom:40px}.padding-bottom-xl{padding-bottom:50px}.padding-left-xs{padding-left:10px}.padding-left-sm{padding-left:20px}.padding-left{padding-left:30px}.padding-left-lg{padding-left:40px}.padding-left-xl{padding-left:50px}.padding-lr-xs{padding-left:10px;padding-right:10px}.padding-lr-sm{padding-left:20px;padding-right:20px}.padding-lr{padding-left:30px;padding-right:30px}.padding-lr-lg{padding-left:40px;padding-right:40px}.padding-lr-xl{padding-left:50px;padding-right:50px}.padding-tb-xs{padding-top:10px;padding-bottom:10px}.padding-tb-sm{padding-top:20px;padding-bottom:20px}.padding-tb{padding-top:30px;padding-bottom:30px}.padding-tb-lg{padding-top:40px;padding-bottom:40px}.padding-tb-xl{padding-top:50px;padding-bottom:50px}.margin-0{margin:0}.margin-xs{margin:10px}.margin-sm{margin:20px}.margin{margin:30px}.margin-lg{margin:40px}.margin-xl{margin:50px}.margin-top-xs{margin-top:10px}.margin-top-sm{margin-top:20px}.margin-top{margin-top:30px}.margin-top-lg{margin-top:40px}.margin-top-xl{margin-top:50px}.margin-right-xs{margin-right:10px}.margin-right-sm{margin-right:20px}.margin-right{margin-right:30px}.margin-right-lg{margin-right:40px}.margin-right-xl{margin-right:50px}.margin-bottom-xs{margin-bottom:10px}.margin-bottom-sm{margin-bottom:20px}.margin-bottom{margin-bottom:30px}.margin-bottom-lg{margin-bottom:40px}.margin-bottom-xl{margin-bottom:50px}.margin-left-xs{margin-left:10px}.margin-left-sm{margin-left:20px}.margin-left{margin-left:30px}.margin-left-lg{margin-left:40px}.margin-left-xl{margin-left:50px}.margin-lr-xs{margin-left:10px;margin-right:10px}.margin-lr-sm{margin-left:20px;margin-right:20px}.margin-lr{margin-left:30px;margin-right:30px}.margin-lr-lg{margin-left:40px;margin-right:40px}.margin-lr-xl{margin-left:50px;margin-right:50px}.margin-tb-xs{margin-top:10px;margin-bottom:10px}.margin-tb-sm{margin-top:20px;margin-bottom:20px}.margin-tb{margin-top:30px;margin-bottom:30px}.margin-tb-lg{margin-top:40px;margin-bottom:40px}.margin-tb-xl{margin-top:50px;margin-bottom:50px}.margin-top-0{margin-top:0}.margin-bottom-0{margin-bottom:0}.br10{border-radius:10px}.title{padding:50px 0 10px;font-size:36px;font-family:FZCuYuan-M03S;text-align:center}.little{padding:20px 0;font-size:22px;font-family:PingFang SC;text-align:center}.fs-0{font-size:0}.flex1{flex:1}.flex2{flex:2}.flex3{flex:3}.max-warp{max-width:1280px;margin:0 auto}.transition{transition:all .3s ease-in-out}.back-arrow{width:0;height:0;border-top:18px solid transparent;border-bottom:18px solid transparent;border-right:20px solid #fff;margin-right:20px;cursor:pointer;transition:border-right-color .3s}.back-arrow:hover{border-right-color:#16bdff}.back-arrow:hover{transform:translate(-5px)}