/* 全局设置，使用 border-box 盒模型 */
* {
    box-sizing: border-box;
}

#menu li:nth-child(2) a {
    color: #51f0c1;
}

#menu li:nth-child(2)::before {
    bottom: 0px;
}

#banner {
    width: 100%;
    position: relative;
    margin-bottom: 30px;
    /* 使用 padding-top 模拟 aspect-ratio */
    padding-top: 23%; 
    background-color: #51f0c1;
    background-image: url("../image/banner-small.gif");
    background-size: 100% 100%;
    background-repeat: no-repeat;
    text-align: center;
	overflow: hidden;
	margin-top: 50px;
}

.blur {
    /* 添加更多浏览器前缀以提高兼容性 */
    -webkit-backdrop-filter: blur(30px);
    -moz-backdrop-filter: blur(30px);
    -ms-backdrop-filter: blur(30px);
    backdrop-filter: blur(30px);
    width: 100%;
    height: 100%;
    /* 备用方案：半透明背景色 */
    background-color: rgba(255, 255, 255, 0.1); 
    position: absolute;
    top: 0;
    left: 0;
	overflow: hidden;
}

#banner .blur video {
    height: auto;
    width: 80%;
}

#name {
    font-weight: bold;
    color: #40bb8c;
}

.Introducer-right-span {
    color: gray;
}

#main {
    width: 100%;
    height: auto;
    overflow: hidden;
    margin-bottom: 2em;
}

#main-cont {
    width: 85vw;
    height: auto;
    margin: auto;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

#main-cont-left {
    width: 65%;
    height: 100%;
	padding: 1em;
}

#main-cont-right {
    width: 30%;
    height: 100%;
}

#main-cont-left,#main-cont-right{
	margin: 0.5em auto;
	background-color: #fff;
	box-shadow: 0 0 7px 2px rgba(0, 0, 0, 0.1);
	border-radius: 10px;
}

#main-cont-left h2 {
    color: #46cfa7;
    margin: 2em auto 1.5em; 
}

#main-cont-left p {
    text-indent: 2em;
    line-height: 1.5em;
    margin: 0.3em auto;
	width: 100%;
}

#main-cont-left figure{
	width: 100%;
	height: calc(75vw * 0.65 / 2);
	overflow: hidden;
	border-radius: 5px;
	margin: 1em auto;
}

#main-cont-left img {
    width: 100%;
	height: auto;
}

#main-cont-right h3 {
    margin: 1em auto;
}

#main-cont-right img {
    width: 85%;
    border-radius: 5px;
	margin: 1em auto;
}