* {
    margin: 0;
    padding: 0;
}
body,
html {
    margin-top: 0px;
    font-size: 15px;
    font-family: 'Microsoft Yahei', '微软雅黑', 'Simsun', '宋体', 'Arial', sans-serif;
}
img {
    border: 0;
}
a {
    color: black;
    text-decoration: none;
    outline: none;
}
ol,
ul,
li {
    list-style: none;
    float: left;
}
.head-nav {
    width: 100%;
    height: 80px;
    background: #fff;
}
.head-nav-con {
    width: 1200px;
    height: 80px;
    margin: auto;
    margin-left: 5%;
    position: relative;
}
.head-nav-con ul li {
    width: 170px;
    float: left;
    font-size: 18px;
    text-align: center;
}

.head-nav-con ul a {
    display: block;
    text-decoration: none;
    text-align: center;
    line-height: 80px;
    color: black;
}
.dynamic {
    background: #fff;
}
.drop-down-content li a:hover {
    background: #ff9c01;
    opacity: 8;
}

.clearFloat li ul {
    position: absolute;
    display: none;
    width: 170px;

}
.drop-down-content
{
    background-color: #fff;
}
/* .drop-down-content-2:hover ~ .drop-downs-2,
.drop-down-content-2 li:hover + .drop-downs-2 {
    background-color:#ff9c01;
} */
/* .drop-down-content-2:active{
    background-color: #ff9c01;
} */

.drop-down-content-2
{
    background-color: #fff;
}
.clearFloat li:hover .drop-down-content {
    display: block;
}

.clearFloat .drop-down-content-2{
    position: absolute;
    display: none;
    width: 170px;
    left: 170px;
    /* 使nav3元素上移30px */
    margin-top: -80px;
}
.drop-down-content li:hover .drop-down-content-2{
    display: block;
}



.indexlogo {
    margin-top: 10px;
    margin-left: -50px;
    width:100px;
    height: 50px;
    position: absolute;
    left: 0;
}
.clearFloat {
  display: flex;
  justify-content: center;
  padding: 0;

}
.dynamic {
    background: #fff;
    border-radius: 50px;
    margin-left: 200px;

  }
.drop-down {
    list-style: none;
    display: inline-block;

    cursor: pointer;
    position: relative;
    z-index: 2;
    /* transition: color 0.5s; */
  }
.drop-down::after {
    content: '';
    background: #ff9c01;;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    opacity: 0;
    transition: top 0.1s,opacity 0.1s;
  }
.drop-down:hover{
    color: #fff;
  }
.drop-down:hover::after{
    top: 50%;
    opacity: 1;
  }


.bigfont {
    font-size: 13px;
}

.container {
    position: relative;
    text-align: center;
    color: white; /* 文字颜色 */
}
.background-pics {
    width: 100%; /* 图片宽度 */
    height: auto; /* 图片高度自适应 */
}
.text-header {
    position: absolute;
    top: 50%; /* 垂直居中 */
    left: 50%; /* 水平居中 */
    transform: translate(-50%, -50%); /* 居中对齐 */
    width: 90%;
}
.browse_text {
    font-size: 50px;
    font-weight: bold;
    margin-top: 10px;
    font-family:Poppins;
    
}
/* 基本样式 */
.read_bt {
    margin-top: 10%;
    border-radius: 10px;
    background-color: #ff9c01; /* 按键背景颜色 */
    border: none;
    color: white;
    padding: 10px 10px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    /* margin: 4px 2px; */
    cursor: pointer;
    transition: background-color 0.3s; /* 添加过渡效果 */
}

/* 点击时的样式 */
.read_bt:active {
    background-color: #e58a00; /* 点击时的背景颜色 */
}

/* 确保链接文字为白色 */
.read_bt a {
    color: white;
    text-decoration: none;
    display: block; /* 使链接覆盖整个按钮区域 */
    padding: 15px 32px; /* 与按钮的padding一致 */
    font-size: 30px;
}