.welcome_card{background:url(/images/topic_popular_bg.png) no-repeat 50%/cover;width:100%;height:500px;display:flex;align-items:center;justify-content:center;color:#fff;text-align:center;border-radius:24px;margin-bottom:32px}.welcome_card svg{position:absolute;bottom:20px;z-index:-1;display:block}.main-circle{position:relative;width:min(80vw,500px);height:min(80vw,500px);margin:100px auto;border:8px solid transparent;border-radius:50%;color:#fff;font-size:1rem;font-weight:600;letter-spacing:2px;background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,#ff4d4d,#ffb84d,#4dd2ff,#4d79ff,#d24dff) border-box}.center-circle{top:50%;left:50%;transform:translate(-50%,-50%);width:40%;height:40%;background:#ede240;background:linear-gradient(90deg,#ede240,#ff52eb);background:-webkit-linear-gradient(90deg,#ede240,#ff52eb)}.center-circle,.circle-item{position:absolute;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}.circle-item{width:30%;height:30%;text-align:center;top:35%;left:35%;transform:rotate(calc(var(--i) *90deg)) translate(170%) rotate(calc(var(--i) * -90deg))}.red{background-image:linear-gradient(.2deg,#fcdc73 -13.1%,#fcc273 31.9%,#f15454 69.6%)}.cyan{background-image:linear-gradient(109.6deg,#e46be8 11.2%,#571be2 96.7%)}.blue{background:#f5e900;background:linear-gradient(90deg,#f5e900,#5fb7f1);background:-webkit-linear-gradient(90deg,#f5e900,#5fb7f1)}.purple{background-image:linear-gradient(109.5deg,#4cddf2 11.2%,#5c79ff 91.1%)}