@charset "utf-8";
/* 全局重置 */
*{
    margin: 0;
    padding: 0;
    list-style: none;
    box-sizing: border-box;
}
body{
    font-family: "微软雅黑";
    color: #333;
    background: #f3f9f3;
}
/* 顶部标题栏 */
header{
    width: 100%;
    height: 90px;
    background: #3d7046;
    color: #fff;
    text-align: center;
    line-height: 90px;
    font-size: 30px;
    font-weight: bold;
    letter-spacing: 3px;
}
/* 导航栏 */
nav{
    width: 100%;
    height: 55px;
    background: #fff;
    border-bottom: 2px solid #3d7046;
}
nav ul{
    display: flex;
    justify-content: center;
    gap: 32px;
    line-height: 55px;
}
nav a{
    text-decoration: none;
    color: #333;
    font-size: 16px;
    padding: 12px 4px;
}
nav a:hover{
    color: #3d7046;
    border-bottom: 3px solid #3d7046;
}
/* 主体内容区域 */
main{
    width: 100%;
    padding: 40px 5%;
    min-height: 450px;
    background: #fff;
    margin-top: 10px;
}
h2{
    color: #3d7046;
    margin-bottom: 25px;
    font-size: 26px;
    border-left: 6px solid #3d7046;
    padding-left: 12px;
}
h3{
    margin: 22px 0 10px;
    color: #2d5834;
    font-size: 22px;
}
p{
    line-height: 1.9;
    font-size: 17px;
    margin: 12px 0;
    text-indent: 2em;
}
/* 图片统一样式 */
.img-box{
    width: 100%;
    max-width: 700px;
    border: 3px solid #e8f2e9;
    border-radius: 8px;
    margin: 16px 0;
    display: block;
}
/* 跳转按钮模块 */
.link-box a{
    display: inline-block;
    margin: 8px 10px 8px 0;
    padding: 8px 16px;
    background: #3d7046;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}
.link-box a:hover{
    background: #2d5834;
}
/* 返回首页按钮 */
.back-btn{
    margin-top: 30px;
}
.back-btn a{
    padding: 8px 18px;
    background: #3d7046;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}
/* 页脚底部 */
footer{
    width: 100%;
    height: 70px;
    background: #333;
    color: #fff;
    text-align: center;
    line-height: 70px;
    margin-top: 15px;
    font-size: 14px;
}