@media (min-width: 750px) {
  #bigbox {
    background: url(../img/exportBig.png) no-repeat center center !important;
    background-size: 100% 100% !important;
  }
}
#bigbox {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: url(../img/exportBg.png) no-repeat center center;
  background-size: 100% 100%;
  position: relative;
}

#bigbox .btnbox {
  position: absolute;
  bottom: 20% !important;
  left: 50%;
  transform: translate(-50%, 0);
  width: 90%;
  height: auto;
  min-height: 4.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

#bigbox .btnbox .btn {
  flex: 1;
  min-width: 28%;
  max-width: 32%;
  min-height: 4rem;
  height: auto;
  background: #fff;
  border-radius: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 0.5rem;
  color: #5092cd;
  font-size: 1.4rem;
  box-sizing: border-box;
}

#bigbox .btnbox .btn img {
  width: 1.2rem;
  height: 1.5rem;
  margin-right: 0.3rem;
  flex-shrink: 0;
}

#bigbox .btnbox .btn span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 超小屏手机适配 (320px - 360px) */
@media (max-width: 360px) {
  #bigbox .btnbox {
    bottom: 1.5rem;
    width: 92%;
    gap: 0.3rem;
  }

  #bigbox .btnbox .btn {
    min-height: 3.5rem;
    padding: 0.6rem 0.3rem;
    font-size: 1.2rem;
    border-radius: 0.6rem;
  }

  #bigbox .btnbox .btn img {
    width: 1rem;
    height: 1.3rem;
    margin-right: 0.2rem;
  }
}

/* 小屏手机适配 (361px - 414px) */
@media (min-width: 361px) and (max-width: 414px) {
  #bigbox .btnbox {
    bottom: 1.8rem;
    width: 90%;
    gap: 0.4rem;
  }

  #bigbox .btnbox .btn {
    min-height: 3.8rem;
    padding: 0.7rem 0.4rem;
    font-size: 1.3rem;
    border-radius: 0.7rem;
  }

  #bigbox .btnbox .btn img {
    width: 1.1rem;
    height: 1.4rem;
    margin-right: 0.25rem;
  }
}

/* 中等屏幕适配 (415px - 750px) */
@media (min-width: 415px) and (max-width: 749px) {
  #bigbox .btnbox {
    bottom: 2.5rem;
    min-height: 4rem;
  }

  #bigbox .btnbox .btn {
    min-height: 3.8rem;
    font-size: 1.5rem;
    padding: 0.75rem 0.6rem;
  }

  #bigbox .btnbox .btn img {
    width: 1.3rem;
    height: 1.6rem;
    margin-right: 0.4rem;
  }
}

/* 大屏适配 (750px+) */
@media (min-width: 750px) {
  #bigbox .btnbox {
    bottom: 3rem;
    min-height: 5rem;
  }

  #bigbox .btnbox .btn {
    min-height: 4.5rem;
    font-size: 2rem;
    padding: 1rem;
    border-radius: 1rem;
  }

  #bigbox .btnbox .btn img {
    width: 1.5rem;
    height: 1.9rem;
    margin-right: 0.5rem;
  }
}

a:link {
  color: #5092cd !important;
}