* {
    margin: 0;
    padding: 0;
}

html, body, .wrap { height: 100%; }

body { 
    font-family: Avenir,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;
    font-size: 13px;
    color: #333;
    background: #fafbfd; 
}

li { list-style: none; }

.center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mr10 { margin-right: 10px; }



/* 布局 */
.wrap { flex-direction: column; }

.header, .footer {
    width: 100%; 
    color: #fff; 
}

.header {
    height: 60px;
    font-size: 30px;
    background: linear-gradient(130deg,#aa6aff 40%,#706dff);
}

.content {
    flex: 1;
    width: 1200px;
}

.footer {
    flex-basis: 40px;
    background: #597ef7;
}

.footer a { 
    color: #fff; 
    text-decoration: none;
}

.footer a:hover { text-decoration: underline; }



/* 头部 */
.head-con {
    justify-content: space-between;
    width: 1200px;
}

.contact {
    position: relative;
    margin-right: 20px;
    font-size: 13px;
    color: #333;
}

.contact .icon { width: 24px; }

.contact .con {
    position: absolute;
    right: -10px;
    top: 30px;
    display: none;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 4px 10px rgb(49 70 89 / 15%);
    background: #fff;
}

.contact .con::before {
    position: absolute;
    right: 15px;
    top: -5px;
    content: "";
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 5px;
    border-color: #fff;
    border-top-width: 0;
    border-left-color: transparent;
    border-right-color: transparent;
}

.contact:hover .con { display: block; }



/* 内容 */
.main-list { 
    width: 100%;
    justify-content: space-between; 
}

.main-list li{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 280px;
    height: 330px;
    padding: 20px;
    box-shadow: 0 8px 10px rgb(49 70 89 / 5%);
    box-sizing: border-box;
    background: #fff;
}

.main-list .title {
    margin-top: 30px;
    margin-bottom: 20px;
    font-size: 26px;
    font-weight: normal;
}

.main-list .img {
    height: 68px;
}

.main-list .img img { max-height: 100%; }

.main-list .info {
    height: 50px;
    color: #697b8c;
    line-height: 24px;
    opacity: 0.6;
}