:root {
    --main-color: #0972c9;
}

html {
    min-width: 1200px;
    max-width: 1200px;
    font-family: Avenir, Helvetica, Arial, sans-serif;
    margin: auto;
}

body, figure {
    margin: 0;
}

input {
    outline: 0;
    -webkit-tap-highlight-color: transparent;
}

ul {
    padding: 0;
    margin: 0
}
li {
    list-style: none;
}

a, a:active, a:hover, a:link, a:visited {
    text-decoration: none;
    -webkit-appearance: none;
}


.main-header {
    position: sticky;
    top: 0;
    background-color: #ffffff;
    border-bottom: 1px solid #eeeeee;
    padding: 10px;
    box-sizing: border-box;
}
.main-header > .container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.main-header > .container > .logo-container {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    gap: 20px;
}
.main-header > .container > .logo-container > img {
    width: 50px;
}

.main-header > .container > .telephone-container {
    font-size: 26px;
    font-weight: bold;
}

.homepage-image > .container > img {
    width: 100%;
    box-sizing: border-box;
}

.default-title {
    text-align: center;
}

.cert-class > .container {
    margin: 0 20px;
}
.cert-class > .container .image {
    text-align: center;
}
.cert-class > .container > .image2 {
    width: 50%;
}
.cert-class > .container > .image2 > img {
    width: 100%;
}
.cert-class > .container > .list > ul {
    display: grid;
    grid-gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.cert-class > .container > .list > ul > .item {
    background-color: var(--main-color);
    padding: 10px 0;
    text-align: center;
    color: #ffffff;
    font-size: 20px;
}

.process {
    margin: 10px 0;
}
.process > .container > .content {
    margin: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.process > .container > .content > .image {
    width: 60%;
}
.process > .container > .content > .image > img {
    width: 100%;
}
.process > .container > .content > .button-container >
.button {
    background-color: var(--main-color);
    padding: 20px 40px;
    font-size: 24px;
    color: #ffffff;
    border-radius: 50px
}

.image-grid {
    display: grid;
    grid-gap: 10px;
    grid-template-columns: repeat(2,1fr);
}
.image-grid > .image > img {
    width: 100%;
}

.main-footer > .footer-container {
    margin-top: 20px;
    padding: 20px;
}
.main-footer > .footer-container > .content {
    display: flex;
    justify-content: center;
    align-items: center;
}
.main-footer > .footer-container > .content > .left > .qrcode-container > img{
    width: 100px;
}

.main-footer > .footer-container > .content > .right  > .telephone-container {
    font-size: 26px;
    font-weight: bold;
    margin-left: 50px;
}

.footer-container > .copyright-container {
    text-align: center;
    margin-top: 20px;
}
.footer-container > .copyright-container > a {
    color: #727272;
}


.layer {
    height: 100%;
    width: 100%;
    position: fixed;
    background: rgba(192, 192, 192, 0.8);
    top: 0;
    left: 0;
    z-index: 99;
}
.layer > .container {
    background-color: #ffffff;
    width: fit-content;
    padding: 0 20px 20px 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.input-text {
    border: 1px solid #cccccc;
    padding: 10px;
    font-size: 18px;
    margin-bottom: 20px;
    width: 300px;
    box-sizing: border-box;
}
.form-button > .container {
    width: 300px;
    background-color: var(--main-color);
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    border: 0;
}


.layer-wechat-container {
    width: 300px !important;
}
.layer-wechat-container > .mobile {
    background-color: #ececec;
    padding: 10px;
    text-align: center;
    color: var(--main-color);
    font-size: 20px;
    margin-top: 20px;
}
.layer-wechat-container > .qrcode {
    text-align: center;
    margin-top: 20px;
}
.layer-wechat-container > .qrcode > img {
    width: 180px;
}


.right-tools {
    position: fixed;
    right: 20px;
    bottom: 40%;
}
.right-tools > .container {
    background-color: #ffffff;
    font-size: 12px;
    border: 1px solid #cccccc;
}
.right-tools > .container .item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 5px;
}
.right-tools > .container .item:hover {
    background-color: #ececec;
}
.right-tools > .container .item i {
    font-size: 22px;
    color: #6e6e6e;
}

@media screen and (max-width: 850px) {
    .process > .container > .content {
        flex-direction: column;
    }
    .process > .container > .content > .image {
        margin-bottom: 20px;
        width: 100%;
    }
    .process > .container > .content > .button-container >
    .button {
        background-color: var(--main-color);
        padding: 10px 40px;
        font-size: 20px;
        color: #ffffff;
        border-radius: 50px
    }

    .image-grid {
        grid-template-columns: 1fr;
    }
}