/* 总体页面 */
.page3 {
    display: flex;
    height: 56.25rem; /* 900px → 56.25rem */
    background: #6961612c;
    background: linear-gradient(rgba(255, 255, 255, 0.8), rgba(187, 203, 236, 0.6));
    /* background-image: url(../images/page4-background.jpg); */
    justify-content: center;
}
/* 标题 */
.product-title{
    text-align: center;
    width: 25rem; /* 400px → 25rem */
    height: 3.25rem; /* 52px → 3.25rem */
    font-size: 2.25rem; /* 36px → 2.25rem */
    font-weight: 700;
    color: #1e1e21;
    line-height: 1.25rem; /* 20px → 1.25rem */
    margin-top: 5.625rem; /* 90px → 5.625rem */
    margin-bottom: 1.25rem; /* 20px → 1.25rem */
}
.product-title-span{
    display: flex;
    position: absolute;
    font-size: 1.125rem; /* 18px → 1.125rem */
    padding-top: 2.5rem; /* 40px → 2.5rem */
    margin-left: -4.375rem; /* -70px → -4.375rem */
    justify-content: center;
    align-items: center;
}
.product-title-span a{
    color: #00a3e9;
    text-decoration: none;
}
.product-title-span a .arrow{
    display: inline-block;
    transition: transform 0.7s ease;
}
.product-title-span-a:hover .arrow {
    transform: translateX(1.25rem); /* 20px → 1.25rem */
    /* color: #007bff; */
  }

.product-detail{
    display: flex;
    position: absolute;
    margin-top: 12%;
    width: 81.25rem; /* 1300px → 81.25rem */
    height: 37.5rem; /* 600px → 37.5rem */
    align-items: center;
    justify-content: center;
    border-radius: 0.9375rem; /* 15px → 0.9375rem */
}
.product-menu-button{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem; /* 40px → 2.5rem */
    height: 36.875rem; /* 590px → 36.875rem */
    width: 14.1875rem; /* 227px → 14.1875rem */
    border-radius: 0.9375rem 0 0 0.9375rem; /* 15px 0 0 15px → 0.9375rem 0 0 0.9375rem */
    background-color: rgba(40, 89, 223, 0.459);
}
.product-menu-content{
    display: flex;
    height: 36.875rem; /* 590px → 36.875rem */
    width: 67.25rem; /* 1076px → 67.25rem */
    background-image: url('../images/content-bg.png');
}
.btn {
    /* 基础样式 */
    height: 3.125rem; /* 50px → 3.125rem */
    width: 11.25rem; /* 180px → 11.25rem */
    /* flex: 1; */
    background: #ffffff;
    border: none;
    border-radius: 1.5625rem; /* 25px → 1.5625rem */
    color: rgb(0, 0, 0);
    cursor: pointer;
    transition: background 0.3s;

    /* 文字居中 */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem; /* 16px → 1rem */
  }
  /* 悬停效果 */
.btn:hover {
    background: #3368da;
    transform: translateY(-0.125rem); /* -2px → -0.125rem */
    color: #ffffff;
  }
  /* 点击效果 */
.btn:active {
    background-color: #3368da;
    transform: scale(0.98);
    box-shadow: 0 0.25rem 0.375rem rgba(0, 0, 0, 0.1); /* 4px 6px → 0.25rem 0.375rem */
  }

.content-box {
    display: none;
    width: 34.375rem; /* 550px → 34.375rem */
    height: 100%;
    border-radius: 0.625rem; /* 10px → 0.625rem */
    animation: fadeIn 0.5s ease;
}
.content-box.active {
  display: block;
}


.product-menu-content-left{
    width: 62.5rem; /* 1000px → 62.5rem */
    height: 100%;
    /* border: 2px solid #00a3e9; */
}
.content-box-title{
  margin-top: 6.25rem; /* 100px → 6.25rem */
  margin-left: 3.75rem; /* 60px → 3.75rem */
  color: #000000;
  font-size: 1.625rem; /* 26px → 1.625rem */
}
.content-box-content{
  color: #323236;
  font-size: 1.125rem; /* 18px → 1.125rem */
  width: 33rem; /* 528px → 33rem */
  height: 8rem; /* 128px → 8rem */
  text-align: justify;
  margin-top: 1.25rem; /* 20px → 1.25rem */
  margin-left: 3.75rem; /* 60px → 3.75rem */
  line-height: 2rem; /* 32px → 2rem */
}
.content-box-dic{
  display: flex;
  flex-wrap: wrap;
  gap: 0.9375rem; /* 15px → 0.9375rem */
  width: 33rem; /* 528px → 33rem */
  height: 8rem; /* 128px → 8rem */
  margin-left: 3.75rem; /* 60px → 3.75rem */
  margin-top: 0.75rem; /* 12px → 0.75rem */
}
.content-box-dic-content{
  display: flex;
  flex: 1 1 45%; 
  width: 16.25rem; /* 260px → 16.25rem */
  height: 3.75rem; /* 60px → 3.75rem */
  line-height: 0.5rem; /* 8px → 0.5rem */
  background-color: #ffffff73;
  border-radius: 1.5625rem; /* 25px → 1.5625rem */
}
.content-box-dic-content-radio{
  width: 0.4375rem; /* 7px → 0.4375rem */
  height: 0.4375rem; /* 7px → 0.4375rem */
  border-radius: 50%;
  background: #00a3e9;
  margin-top: 1.6875rem; /* 27px → 1.6875rem */
  margin-left: 1.8125rem; /* 29px → 1.8125rem */
}
.content-box-dic-content-text{
  margin-top: 1.6875rem; /* 27px → 1.6875rem */
  margin-left: 1.25rem; /* 20px → 1.25rem */
  height: 3.75rem; /* 60px → 3.75rem */
  width: 8.75rem; /* 140px → 8.75rem */
  font-size: 1.125rem; /* 18px → 1.125rem */
}
.content-box-img{
  margin-top: -67%;
  margin-left: 123%;
  width: 18.5625rem; /* 297px → 18.5625rem */
  height: 29.5625rem; /* 473px → 29.5625rem */
  background-size: auto;
}



.content-box-button{
  width: 25rem; /* 400px → 25rem */
  height: 3.75rem; /* 60px → 3.75rem */
  margin-top: -3.4375rem; /* -55px → -3.4375rem */
  margin-left: 3.75rem; /* 60px → 3.75rem */
  display: flex;
  gap: 1.25rem; /* 20px → 1.25rem */
}
.content-box-button-div{
  width: 9.375rem; /* 150px → 9.375rem */
  height: 100%;
  flex: 1 1 40%;
  background-color: #1b70c0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem; /* 16px → 1rem */
  line-height: 3.625rem; /* 58px → 3.625rem */
  border-radius: 1.5625rem; /* 25px → 1.5625rem */
}
.content-box-button-div:hover{
  background: #637aaa;
  transform: translateY(-0.125rem); /* -2px → -0.125rem */
}
.content-box-button-div:active{
  background-color: #3686e0;
  transform: scale(0.98);
  box-shadow: 0 0.25rem 0.375rem rgba(0, 0, 0, 0.1); /* 4px 6px → 0.25rem 0.375rem */
}

/* svg  icon */
.svg-icon{
  width: 1.5625rem; /* 25px → 1.5625rem */
  height: 1.875rem; /* 30px → 1.875rem */
  margin-right: 0.9375rem; /* 15px → 0.9375rem */
  color: #515151;
}
.btn:hover .svg-icon{
  color: #ffffff;
}
















@keyframes fadeIn {
  from { opacity: 0; transform: translateY(0.625rem); } /* 10px → 0.625rem */
  to { opacity: 1; transform: translateY(0); }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .section-container {
      padding: 2rem 1rem;
      margin: 1rem;
      border-radius: 0.5rem; /* 8px → 0.5rem */
    }
  
    .section-title {
      font-size: 1.5rem;
      margin-bottom: 1.5rem;
    }
  
    .section-feature {
      margin-bottom: 1rem;
    }
  
    .section-feature-title {
      font-size: 1.2rem;
    }
  
    .text-lg {
      font-size: 1.1rem;
    }
  }
  
  /* 桌面端优化 */
  @media (min-width: 769px) {
    .section-container {
      padding: 3rem;
      margin: 2rem 0;
      border-radius: 1rem; /* 16px → 1rem */
    }
  
    .section-title {
      font-size: 2rem;
      margin-bottom: 2rem;
    }
  
    .section-feature {
      margin-bottom: 1.5rem;
    }
  
    .section-feature-title {
      font-size: 1.5rem;
    }
  
    .text-lg {
      font-size: 1.2rem;
    }
  }
  
  /* 超大屏幕优化 */
  @media (min-width: 1600px) {
    .section-container {
      max-width: 80rem; /* 1280px → 80rem */
      margin: 3rem auto;
    }
  }