.main-banner {
    background: url('/img/main-banner.jpeg') center no-repeat;
    background-size: cover;
}
.container {
    max-width: 1132px;
    margin: 0 auto;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    padding: 0 60px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 5;
}
.header.nobg {
    background: none;
    color: #fff;
}
.header > a {
    position: absolute;
    top: 50%;
    left: 60px;
    transform: translateY(-50%);
}
.header .menu {
    display: flex;
    gap: 60px;
}
.header .menu a {
    height: 80px;
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 500;
    min-width: 160px;
    justify-content: center;
}
.header .sub-menu {
    display: none;
}
.header:hover,
.header.scroll {
    background: #fff;
    color: #333;
    box-shadow: 1px 2px 3px rgba(0, 0, 0, 0.15);
}
.header:hover .sub-menu {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    border-top: 1px solid #ddd;
    background: #fff;
    display: flex;
    justify-content: center;
    padding: 50px 0 60px;
    gap: 60px;
    z-index: 3;
    border-bottom: 1px solid #ddd;
}
.header:hover .sub-menu > div {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.header:hover .sub-menu a {
    display: block;
    text-align: center;
    font-size: 15px;
    font-weight: 500;
    min-width: 160px;
}

.intro-banner {
    background: url('/img/main-banner.jpeg') center no-repeat;
    background-size: cover;
}
.business-banner {
    background: url('/img/business-train-img01.jpeg') center no-repeat;
    background-size: cover;
}
.evc-banner {
    background: url('/img/biz/business-evc-img01.jpg') center no-repeat;
    background-size: cover;
}
.construction-banner {
    background: url('/img/biz-perform/perform-bg.jpg') center no-repeat;
    background-size: cover;
}
.contact-banner {
    background: url('/img/customer.jpg') center no-repeat;
    background-size: cover;
}

.belt {
    border-bottom: 1px solid #ddd;
}
.belt a {
    padding: 0 20px;
}
.belt a span {
    position: relative;
    z-index: 2;
}
.belt a span:before {
    position: absolute;
    content: '';
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #3eae40;
    top: 2px;
    left: 0;
    transform: translateY(-50%) translateX(-50%);
    z-index: -1;
}

.title {
    font-size: 42px;
    font-weight: 600;
    text-align: center;
}
.title span {
    position: relative;
    z-index: 2;
}
.title span:before {
    position: absolute;
    bottom: 0;
    left: -14px;
    right: -14px;
    height: 13px;
    background: #3eae40;
    opacity: 0.4;
    border-radius: 10px;
    content: '';
    z-index: -1;
}

.corp-info-section {
}
.corp-info-section .content {
    height: 400px;
    position: relative;
    background: url('/img/intro-corp-img02.jpg') center no-repeat;
    background-size: cover;
}
.corp-info-section .content ul {
    max-width: 421px;
    margin-left: 50%;
    padding-top: 74px;
}
.corp-info-section .content ul li {
    border-top: 1px solid #fff;
    line-height: 49px;
    display: flex;
}
.corp-info-section .content ul li:last-child {
    border-bottom: 1px solid #fff;
}
.corp-info-section .content ul li span:nth-child(1) {
    flex: 0 0 152px;
}
.corp-info-section .content ul li span:nth-child(2) {
    flex: 1;
}

.corp-organization-section {
}
.corp-organization-section img {
    max-width: 100%;
    display: block;
    margin: 0 auto;
}

.mission-content {
    background: url('/img/intro-management-img01.jpg') center no-repeat;
    background-size: cover;
    padding: 20px 70px;
}
.vision-content {
    background: url('/img/intro-management-img02.webp') center no-repeat;
    background-size: cover;
    padding: 20px 70px;
}

.management-section {
}
.management-section ul {
    padding: 48px 38px;
    font-size: 20px;
}
.management-section ul li {
    display: flex;
}
.management-section ul li span:nth-child(1) {
    flex: 0 0 130px;
    font-weight: 700;
}
.management-section ul li + li {
    margin-top: 28px;
}

.train-section {
}
.train-section .rect {
    width: 208px;
    height: 208px;
    background: #3eae40;
    border-radius: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 500;
    color: #fff;
}
.train-section ul {
}
.train-section ul li {
    list-style: disc;
    display: list-item;
    color: #000;
    font-size: 16px;
    font-weight: 500;
}
.train-section ul li + li {
    margin-top: 10px;
}
.train-section ul li p {
    font-size: 14px;
    color: #787878;
    font-weight: 400;
    line-height: 1.8;
}

.precise-section ul {
}
.precise-section ul li {
    list-style: disc;
    display: list-item;
    color: #000;
    font-size: 14px;
    font-weight: 400;
}
.precise-section ul li + li {
    margin-top: 10px;
}
.precise-section ul li p {
    font-size: 14px;
    color: #787878;
    font-weight: 400;
    line-height: 1.8;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 50%;
    right: 12px;
    padding: 8px;
    transform: translateY(-50%);
}
.mobile-menu span {
    width: 28px;
    height: 3px;
    border-radius: 4px;
    background: #666;
    display: block;
}
.mobile-menu span + span {
    margin-top: 4px;
}

.mobile-side {
    position: fixed;
    top: 0;
    bottom: 0;
    right: -200px;
    width: 200px;
    background: #333;
    color: #fff;
    padding: 20px;
    overflow-y: auto;
}
.mobile-side.toggle {
    right: 0;
}
.mobile-side span {
    display: block;
    text-align: right;
    margin-bottom: 20px;
    font-size: 30px;
    color: #fff;
    overflow: hidden;
}
.mobile-side span svg {
    padding: 4px;
    float: right;
}

.mobile-side > div {
}
.mobile-side > div + div {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #444;
}
.mobile-side > div a {
    display: block;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
}
.mobile-side > div a + a {
    margin-top: 12px;
}

@media all and (max-width: 768px) {
    .header {
        padding: 0 10px;
    }
    .header .menu {
        display: none;
    }
    .header > a {
        left: 50%;
        transform: translateY(-50%) translateX(-50%);
    }
    .header > a img {
        max-width: 110px;
    }

    .mobile-menu {
        display: block;
    }
    .mobile-side {
        display: block;
    }

    .header:hover .sub-menu {
        display: none;
    }

    .header.nobg {
        background: #fff;
        color: #000;
    }

    .belt {
        display: none;
    }

    .title {
        font-size: 26px;
    }

    .corp-info-section .content {
        height: auto;
        padding: 30px 20px;
    }
    .corp-info-section .content ul {
        max-width: 421px;
        margin: 0;
        padding: 0;
    }
    .corp-info-section .content ul li {
        border-top: 1px solid #fff;
        line-height: 49px;
        display: flex;
        font-size: 13px;
    }
    .corp-info-section .content ul li:last-child {
        border-bottom: 1px solid #fff;
    }
    .corp-info-section .content ul li span:nth-child(1) {
        flex: 0 0 80px;
    }
    .corp-info-section .content ul li span:nth-child(2) {
        flex: 1;
    }

    .mission-content,
    .vision-content {
        padding: 20px 30px;
    }

    .management-section ul {
        padding: 36px 0 0;
        font-size: 15px;
    }
    .management-section ul li {
        display: flex;
    }
    .management-section ul li span:nth-child(1) {
        flex: 0 0 90px;
        font-weight: 700;
    }
    .management-section ul li + li {
        margin-top: 16px;
    }
}