* {
  margin: 0;
  padding: 0;
}

@font-face {
    font-family: "思源黑体";
    src: url("SourceHanSans-Regular.ttf");
}
body {
  min-width: 1440px;
   font-family: "思源黑体";
}

.top {
  width: 100%;
  background: url('../image/dxal.png') no-repeat;
  background-size: cover;
  position: relative;
  display: flex;
  justify-content: center;
  height: 684px;
}

.nav {
  position: absolute;
  top: 200px;
  width: 1440px;
  display: flex;
  align-items: center;
}

.nav a {
  color: #808080;
  text-decoration: none;
}

.nav p {
  color: #808080;
}

.top .text {
  position: absolute;
  top: 350px;
  width: 1440px;
}

.text_top {
  color: #ffffff;
  font-size: 40px;
  margin-bottom: 20px;
    font-weight: 700;
}

.text_bottom {
  color: #ffffff;
  font-size: 18px;
    font-weight: 700;
}

.tender-row {
  width: 100%;
}

.tender-cen {
  width: 1440px;
  margin: 90px auto 70px;
}

.tender-title {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: 0px;
  line-height: 52.13px;
  color: rgba(0, 0, 0, 1);
}

.case-row {
  width: 1440px;
  margin-top: 82px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
}

.case_list {
  width: 336px;
  opacity: 1;
  border-radius: 50px 0px 50px 10px;
  background: rgba(255, 255, 255, 1);
  box-shadow: -4px 2px 11px 6px rgba(0, 0, 0, 0.03);
  padding: 14px 14px 22px 14px;
  box-sizing: border-box;
  margin-right: 30px;
  margin-bottom: 60px;
  cursor: pointer;
}

.case_images {
  width: 100%;
  overflow: hidden;
  border-radius: 50px 0px 50px 10px;
}

.case_img {
  width: 100%;
  border-radius: 50px 0px 50px 10px;
  transition: all 0.5s;
  height: 400px;
}

.case_p {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0px;
  line-height: 23.17px;
  color: rgba(128, 128, 128, 1);
  text-align: center;
  margin-top: 20px;
	white-space: nowrap;
	text-overflow: ellipsis;
	overflow: hidden;
}

.case_list:nth-child(4n) {
  margin-right: 0;
}

.case_list:hover .case_img {
  transform: scale(1.1);
}