html {
  padding: 0px;
  margin: 0px;

  background-image: url('../images/bg.jpg');
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

body {
  margin: 0px;
  padding: 0px;
}

.main {
  width: 100%;
  height: 100%;
  margin: 0px;
  padding: 0px;
  display: flex;
  justify-content: center;
  flex-direction: column;
}

.mainHead {
  width: 100%;
  min-height: 72px;
  background: rgba(255, 255, 255, 1);
  opacity: 1;
  box-shadow: 0px 3px 8px rgba(0, 0.2823529541492462, 0.5058823823928833, 0.10000000149011612);
  overflow: visible;
  display: flex;
  justify-content: center;
}

.mainHeadContent {
  width: 100%;
  max-width: 1170px;
  min-height: 72px;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  opacity: 1;
  overflow: visible;
  display: flex;
  align-items: center;
  padding: 0 2vw;
}

.logo {
  opacity: 1;
  margin-right: 12px;
  /* 控制间距 */
}

.logoText {
  color: rgba(0, 30, 54, 1);
  font-family: Times New Roman;
  font-weight: Bold;
  font-size: 24px;
}

.rightRect{
  margin-left: auto;
  display: flex;
  flex-direction: row;
  gap: 20px;
}

.rightText {
  
  /* 将其向右推 */
  font-family: Times New Roman;
  font-weight: Bold;
  font-size: 14px;
  opacity: 1;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  user-select: none
}

.popup {
  display: none;
  position: absolute; /* 仅弹窗使用定位 */
  top: 0;
  left: 0;
  width: 200px;
  padding: 10px;
  background-color: #fff;
  border: 1px solid #ccc;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  z-index: 10;
}

.qr-code {
  width: 100%;
  height: auto;
}

.mainContent {
  width: 96%;
  max-width: 1170px;
  background: rgba(255, 255, 255, 1);
  opacity: 1;
  border-radius: 20px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  box-shadow: 6px 6px 32px #cbe7fa44;
  padding-bottom: 10px;
}


.v74_50 {
  width: auto;
  color: rgba(13, 13, 37, 1);
  font-family: Times New Roman;
  font-weight: Bold;
  font-size: 32px;
  opacity: 1;
  text-align: center;
  margin: 80px auto 0px;
}

.v74_51 {
  width: auto;
  color: url("../images/v74_51.png");
  font-family: Times New Roman;
  font-weight: Regular;
  font-size: 16px;
  opacity: 1;
  text-align: center;
  line-height: 1.8;
  margin: 30px auto 0px;
  padding: 0 16px;
}

.grid-container {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-around;
  margin: 40px 2vw 0 2vw;
}

.grid_item {
  flex: 1 1 320px;
  min-width: 80px;
  max-width: 520px;
  background: rgba(255, 255, 255, 1);
  opacity: 1;
  border-radius: 10px;
  margin-bottom: 50px;
  box-shadow: 0px 3px 16px rgba(0, 0.10588235408067703, 0.1882352977991104, 0.15000000596046448);
  overflow: hidden;
  padding: 28px 22px 22px 22px;
  display: flex;
  flex-direction: column;
}

.v74_53 {
  width: 100%;
  height: 93px;
  max-width: 320px;
  align-self: center;
  margin-top: 15px;
}

.grid_item_title {
  font-family: Times New Roman;
  font-weight: Bold;
  font-size: 24px;
  opacity: 1;
  text-align: left;
  margin-top: 30px;
}

.v74_55 {
  color: rgba(102, 102, 102, 1);
  font-family: Times New Roman;
  font-weight: Regular;
  font-size: 14px;
  opacity: 1;
  text-align: left;
  line-height: 1.8;
  margin-top: 18px;
}

.v74_56 {
  color: rgba(13, 13, 37, 1);
  font-family: Times New Roman;
  font-weight: Bold;
  font-size: 16px;
  opacity: 1;
  text-align: left;
  margin-top: 22px;
}

.download_group {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
}

.download_btn {
  width: 140px;
  height: 40px;
  background: rgba(20, 115, 230, 1);
  opacity: 1;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
  overflow: hidden;
  display: flex;
}

.download_2 {
  margin-left: auto;
}

.v74_58 {
  color: rgba(255, 255, 255, 1);
  font-family: Times New Roman;
  font-weight: Bold;
  font-size: 16px;
  opacity: 1;
  text-align: center;
  margin: auto;
  text-decoration: none;
  position: relative;
  /* 从 absolute 改为 relative  */
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

.v74_588 {
  color: rgba(0, 0, 0, 1);
  text-decoration: none;
  /* 从 absolute 改为 relative  */
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

.mainBottom{
  width: 100%;
  min-height: 75px;
  margin-top: 40px;
  background: rgba(255,255,255,1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.v79_663 {
  width: auto;
  color: rgba(51,51,51,1);
  font-family: Times New Roman;
  font-weight: Regular;
  font-size: 12px;
  opacity: 1;
  text-align: center;
}

.v79_662 {
  width: auto;
  color: rgba(51,51,51,1);
  font-family: Times New Roman;
  font-weight: Regular;
  font-size: 12px;
  opacity: 1;
  text-align: center;
  margin-top: 10px;
}

/* 响应式适配 */
@media screen and (max-width: 1240px) {
  .mainHeadContent, .mainContent { max-width: 98vw; }
}
@media screen and (max-width: 800px) {
  .grid_item { max-width: 96vw; }
  .v74_50 { font-size: 26px; }
}
@media screen and (max-width: 600px) {
  .mainHeadContent { padding: 0 1vw; flex-direction: column; min-height: 0; }
  .mainContent { padding: 0 2px; }
}