body{
    margin: 0;
    overflow-x: hidden;
    background: linear-gradient(to right, rgba(216,88,77,1), rgba(240,144,124,1));
    /*background-color: white;*/
    color: white;
    /*padding-left: 20px;*/
}

/*首图*/
.mix-picture{
    display: flex;
    position: relative;
    width: 100%;
    overflow: hidden;
}
#bottom-image{
    width: 100%;
    height: auto;
    position: relative;
    margin: 0;
    padding: 0;
    bottom: 0;
}
#top-image{
    width: 100%;
    position: absolute;
    margin: 0;
    padding: 0;
    bottom: -2px;
}
/*中间的块状元素*/
.part
{
    box-sizing: border-box;
    position: relative;
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: 0;

}
/*正文*/
.block1
{
    width: 70%;
    height: auto;
    overflow-x: hidden;
    font-family: Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

}
.title{
    font-family: Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5rem;
}
.withlineleft{
    display: flex;
    flex-direction: row;
    width: 100%;
    /*margin-left: 20vw;*/
}
.withlineleft > div {
    margin-right: 2.5vw; /* 右侧间隔 */
}
.withlineright{
    display: flex;
    flex-direction: row-reverse;
    width: 100%;
    /*margin-left: 20vw;*/
}
.withlineright > div {
    margin-right: 2.5vw; /* 右侧间隔 */
}
.content{
    height: auto;
    width: 80%;
    overflow: hidden;
    text-overflow: ellipsis; /* 使用省略号显示溢出文本 */
    word-break:keep-all;
    /*padding-bottom: 50px;*/
    font-family: Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5rem;
    text-align: justify; /* 两端对齐 */
    text-align-last: left; /* 末行左对齐 */

}

/*边界图*/
.bottom-part-img{
    align-self: flex-end;
}
.bottom-part-img img{
    top: 1px;
    position: relative;
    width: 100vw;
    vertical-align: bottom;
}
.top-part-img{
    align-self: flex-end;
}
.top-part-img img{
    bottom:1px;
    position: relative;
    width: 100vw;
    vertical-align: top;
}

/*自由图片*/
.free-img {
    position: absolute; /* 绝对定位，脱离文档流 */
}
/*reference*/
.ref-title{
    margin-top: 50px;
    padding-top: 4px;
    padding-bottom: 2px;
    text-align: center;
    background-color: #8B1D21;
    width: 70%;
    font-family: Arial, sans-serif;
}
.ref-title>h1{
    border: 0;
    padding: 0;
    margin: 0;
    font-family: Arial, sans-serif;
}
.ref-content
{
    text-align: left;
    background-color: rgba(256,256,256,0.3);
    height: auto;
    padding-bottom: 50px;
    font-family: Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5rem;
    color: white;
}
.ref-content>h5{
    padding-left: 15px;padding-right: 15px;
}

#line1,#line2,#line3,#line4,#line5,#line6{
    width: 1vw;height: auto;
}
h1{
    font-size:1.75rem;
    line-height: 1.2;
    padding-left: 15px;
    padding-right: 15px;
    font-family: Arial, sans-serif;
}
h3{
    font-size:1.5rem;
    line-height: 1.2;
    padding-left: 20px;
    padding-right: 20px;
    font-family: Arial, sans-serif;
}
h5{
    font-size: 1rem;
    line-height: 1.5rem;
    color: white;
    text-align: justify;
    word-break: keep-all;
    font-weight: 400;
    font-family: Arial, sans-serif;
    padding: 15px 15px 20px 15px ;
}
.img-intro{
    text-align: center;
    font-size:13px;
}

        .combined-sub-sup {
            position: relative;
            font-size: 14px;
            /* 根据需要设置字体大小 */
            display: inline;
            word-break: keep-all;
        }

        .combined-sub-sup sup,
        .combined-sub-sup sub {
            position: absolute;
            font-size: 60%;
            /* 根据需要设置角标的字体大小 */
        }

        .combined-sub-sup sup {
            top: -0.75em;
            /* 调整上角标的位置 */
        }

        .combined-sub-sup sub {
            bottom: -0.75em;
            /* 调整下角标的位置 */
        }
.figure{
    
  font-family: Microsoft YaHei,Arial, Helvetica;
  font-size: 13px;
  line-height: 19.5px;
  color: #832A2A;
  text-align: justify;
  text-align-last: left;
}


/*waves*/


.transition {
    position: relative;
    text-align: center;
    border:0;
    margin: 0;
    z-index: 9;
}

.waves {
    position: relative;
    width: 100%;
    height: 15vh;
    margin-bottom: -7px; /*Fix for safari gap*/
    min-height: 100px;
    max-height: 150px;
}


  /* Animation */

.parallax > use {
    animation: move-forever 25s cubic-bezier(0.55, 0.5, 0.45, 0.5) infinite;
}
.parallax > use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 7s;
}
.parallax > use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 10s;
}
.parallax > use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 13s;
}
.parallax > use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 20s;
}
@keyframes move-forever {
    0% {
        transform: translate3d(-90px, 0, 0);
    }
    100% {
        transform: translate3d(85px, 0, 0);
    }
}
/*Shrinking for mobile*/
@media (max-width: 768px) {
    .waves {
        height: 40px;
        min-height: 40px;
    }
    .content {
        height: 30vh;
    }
    h1 {
        font-size: 24px;
    }
}