@font-face {
  font-family: Helvetica;
  src: url(../fonts/Helvetica.woff2);
}

.header1 {
  /* 第一个段落的样式 */
  margin-bottom: 40px; /* 设置下边距为20像素 */
}

.header2 {
  /* 第一个段落的样式 */
  margin-top: 20px;
  font-family: "Helvetica";
  color: white;
  font-size: 95%;
}

.header3 {
  /* 第一个段落的样式 */
  color: rgb(109, 109, 109);
  font-size: 80%;
  margin-bottom: 40px; /* 设置下边距为20像素 */
}

.black-background-white-text {
  background-color: black;
  color: white;
}

:root {
  --padding: 1.5rem;
  --main-font-size: 1.2rem;
  --color-grey: #333;
  --color-light: #efefef;
  --color-text: var(--color-grey);
  --color-background: var(--color-light);
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --font-custom: "le-murmure", serif;
}

/* * {
  margin: 0;
  padding: 0;
} */

html {
  max-width: 70%;
  padding: var(--padding);
  margin: auto;
  color: var(--color-text);
  font-size: var(--main-font-size);
}

.strong {
  font-weight: bold; /* 设置字体加粗 */
}

body {
  font-family: "Times New Roman";
  font-size: 115%;
  background-color: var(--color-background);
}


figure {
  padding: 0.5rem;
  text-align: center;
}

figcaption {
  margin-top: 10px;
  font-size: 0.6em;
 
}

img {
  width: 70%;
  display: block; /* 使图像成为块级元素 */
  margin: 0 auto; 
}

h1 {
  font-family: "Helvetica";
  font-size: 3rem;
  margin-bottom: 20px;
}

header {
  font-family: "Helvetica";
  color: rgb(93, 93, 93);
  font-size: 1.3rem;
  line-height: 1.8rem;
}

article {
  counter-reset: footnotes;
}

a[aria-describedby="footnote-label"] {
  counter-increment: footnotes;
  text-decoration: none;
  color: inherit;
  cursor: default;
  outline: none;
}

a[aria-describedby="footnote-label"]::after {
  content: counter(footnotes);
  vertical-align: super;
  font-size: 0.7em;
  margin-left: 2px;
  color: blue;
  text-decoration: underline;
  cursor: pointer;
}

.element-with-padding {
  padding-left: 20px; /* 在元素的左侧添加 20px 的空白区域 */
  padding-right: 20px;
 
  padding-bottom: 20px;
}

footer > ol {
  font-size: 0.8rem;
}

.container {

  margin: 0 auto;

}

.tooltip {
  position: relative;
  cursor: help;
  display: inline-block;
}

.tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  width: 500px;
  background-color: #333;
  color: #fff;
  padding: 5px;
  border-radius: 5px;
  font-size: 14px;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
}

.tooltip:hover::before {
  visibility: visible;
  opacity: 1;
}

.highlight {
  color: rgb(156, 6, 6);
}

.container1 {
  max-width: 1000px;
  margin: 0 auto;
}

.section {
  border: 2px solid black; /* 添加黑色边框 */
}

@media only screen and (min-width:1px) and (max-width: 920px) {

  html {
    max-width: 100%;
    padding: 0;
    font-size: 1rem;
    margin:0;
  }

  

  figure {
    padding: 0;
    margin: 0;
  }

  img {
width: 100%;

  }
  figcaption {
    font-size: 0.7em;
   
  }
  
  .container {
    margin: 0 auto;
  }

  .tooltip::before {
    width: 300px;
  }
  a {
    overflow-wrap: break-word; /* 强制链接换行 */
  }
  

}