* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html, body, div, p, ul, li, dl, dt, dd, em, i, span, a, img, input, h1, h2, h3, h4, h5 {
    margin: 0;
    padding: 0
}

a, img, input {
    border: none;
}

button,
input,
select,
textarea {
    font-size: 100%;
    outline: none
}

button {
    border: none;
}

body {
    font: 14px/1.75 -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
    overflow-x: hidden;
}

a {
    text-decoration: none;
}

ul, li {
    list-style: none
}

::root {
    --intro-fade: 500ms;
}

body {
    background-color: #0060ff;
}

table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
}

a:hover, button:hover {
    filter: brightness(1.1);
}

/* mainswiper */
.wrap {
    width: 100%;
    min-width: 14rem;
    margin: 0 auto;
    background: url(https://static.web.sdo.com/mxdc/pic/project/202610celebration/pc/head.jpg) no-repeat 50% 0;
    background-size: 100% auto;
}

.wrap.home {
    min-height: calc(100vh - 150px);
}

.head {
    position: relative;
    width: 100%;
    height: 10.8rem;

}

.head .logo {
    position: absolute;
    top: .4rem;
    left: 50%;
    width: 1.02rem;
    height: .75rem;
    margin-left: -4.08rem;
    background-image: url(https://static.web.sdo.com/mxdc/pic/project/202610celebration/pc/logo.png);
    background-size: 100% 100%;
}

.head .btns {
    position: absolute;
    top: 8.3rem;
    left: 50%;
    width: 8.75rem;
    margin-left: -4.375rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.head .btns a {
    width: 3.91rem;
    height: 1.76rem;
    background-image: url(https://static.web.sdo.com/mxdc/pic/project/202610celebration/pc/head-btn.png);
    background-size: 7.82rem 3.52rem;
}

.head .btns a:nth-child(1) {
    background-position-x: 0;
}

.head .btns a:nth-child(2) {
    background-position-x: -3.91rem;
}

.head .btns a.cur, .head .btns a:hover {
    background-position-y: bottom;
}


.SDGCOPYRIGHT-wrap20130425 {
    min-width: 1300px;
}

.page01 {
    width: 100%;
    height: 50rem;
    padding-top: 1.63rem;
    background: url(https://static.web.sdo.com/mxdc/pic/project/202610celebration/pc/page01-bg.png) no-repeat 50% 0;
    background-size: 100% 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: .15rem;
}

.page01 .title {
    width: 11.66rem;
    margin: 0 auto;
    margin-bottom: .17rem;
}

.page01 .item {
    width: 12.13rem;
    margin: 0 auto;
}

/* alert */
#alert {
    position: fixed;
    left: 50%;
    top: 30px;
    transform: translate(-50%);
    z-index: 9999;
    animation: alertIn 0.3s ease forwards;
    pointer-events: none;
}

#alert.remove {
    animation: alertOut 0.3s ease forwards;
}

#alert div {
    padding: 10px 20px;
    border-radius: 4px;
    color: #fff;
}

#alert div.success {
    background: #67c23a;
}

#alert div.error {
    background: #f56c6c;
}

#alert div.warning {
    background: #e6a23c;
}

@keyframes alertIn {
    from {
        opacity: 0;
        top: 0;
    }

    to {
        opacity: 1;
        top: 30px;
    }
}

@keyframes alertOut {
    from {
        opacity: 1;
        top: 30px;
    }

    to {
        opacity: 0;
        top: 0;
    }
}