.about { height: 540px; min-width: 1200px; background: url("../images/index_2.jpg") right/cover no-repeat; }

.about-container { display: flex; flex-direction: column; flex-wrap: nowrap; justify-content: space-between; align-items: center; padding: 20px 0 40px; }

.about-wrapper { display: flex; justify-content: space-between; }

.about-wrapper .left-img { width: 575px; height: 320px; }

.about-wrapper .left-img img { width: inherit; height: inherit; display: block; }

.about-wrapper .right-text { position: relative; padding-left: 20px; color: #fff; }

.about-wrapper .right-text .more-btn { cursor: pointer; position: absolute; bottom: 0; left: 20px; display: inline-block; padding: 10px 30px; border: 1px solid rgba(255, 255, 255, 0.4); }

.product { min-width: 1200px; padding: 30px 0; }

.product .pro-nav { display: flex; justify-content: space-between; align-items: flex-end; }

.product .pro-nav .pro-left { display: flex; align-items: flex-end; border-bottom: 1px solid #d3d0d0; padding-bottom: 4px; }

.product .pro-nav .pro-right { color: #333; font-size: 18px; cursor: pointer; }

.product .pro-nav .pro-title { font-weight: bold; font-size: 22px; }

.product .pro-nav .nav-list { display: flex; }

.product .pro-nav .nav-list .nav-item { padding: 0 20px; margin-right: 20px; cursor: pointer; }

.product .pro-nav .nav-list .nav-item.active { color: #003399; font-weight: 600; }

.product .pro-nav .nav-list .nav-item.active::after { display: block; position: relative; bottom: -6px; left: 0; right: 0; content: ""; width: 100%; height: 3px; background-color: #003399; }

.product-container { display: flex; flex-direction: column; flex-wrap: nowrap; justify-content: space-between; align-items: center; padding: 20px 0 40px; }

.product-container > div { display: none; }

.product-wrapper { margin-top: 40px; display: flex; justify-content: space-between; }

.product-wrapper .left-text { position: relative; padding-right: 20px; color: #333; }

.product-wrapper .left-text .h1-title { font-weight: bold; color: #003399; font-size: 40px; margin-bottom: 20px; }

.product-wrapper .left-text .more-btn { cursor: pointer; position: absolute; bottom: 0; left: 0; display: inline-block; padding: 10px 30px; background-color: #003399; color: #fff; }

.product-wrapper .right-img { width: 615px; height: 405px; }

.product-wrapper .right-img img { width: inherit; height: inherit; display: block; }

.partner { height: 605px; min-width: 1200px; background-image: url("../images/index_4.png"); background-repeat: no-repeat; background-size: 100% 540px; background-position: bottom; }

.partner .title-wrapper { text-align: center; }

.partner .title-wrapper .wrapper-en { font-weight: bold; font-size: 34px; color: #003399; }

.partner .title-wrapper .wrapper-en span { color: #8abc18; }

.partner .title-wrapper .wrapper-cn { font-weight: bold; font-size: 24px; margin: 10px 0; position: relative; }

.partner .title-wrapper .wrapper-cn:after { display: block; content: ""; width: 5%; height: 3px; background-color: #cacaca; position: absolute; bottom: -15px; left: 50%; transform: translateX(-50%); }

.partner-container { margin: 120px auto 0; width: 880px; display: flex; flex-wrap: wrap; justify-content: space-between; }

.partner-container .items-img { width: 205px; height: 97px; display: block; margin-bottom: 20px; }