* {
    /* box-sizing: border-box; */
    padding: 0;
    margin: 0;
    font-family: sans-serif;
  }
  
  :root {
    --purple: hsl(240, 80%, 89%);
    --pink: hsl(0, 59%, 94%);
    --light-bg: hsl(204, 37%, 92%);
    --light-gray-bg: hsl(0, 0%, 94%);
    --white: hsl(0, 0%, 100%);
    --dark: hsl(0, 0%, 7%);
    --text-gray: hsl(0, 0%, 30%);
  }
  
  body {
    background-color: rgb(225, 225, 238);
    /* background: linear-gradient(150deg, #ca7676 15%, #8f6ed5 70%, #d782d9 94%); */
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  /* 定义滚动区域顶部的偏移量 */
  html {
    scroll-padding-top: 60px;
  }
  
  /* 菜单选项 */
  .menu {
    width: 100%;
    background-color: rgb(251, 150, 110);
    overflow: auto;
    position: fixed;
    top: 0;
    /* z-index: 99; */
  }
  
  .menu a {
    float: left;
    width: 16.5%;
    text-align: center;
    padding: 10px 0;
    transition: all 0.3s ease;
    color: rgb(255, 255, 255);
    font-size: 16px;
  }
  
  .menu a:hover {
    background: var(--purple);
  }
  
  .content {
    padding: 16px;
    margin-bottom: 200px;
    height: auto;
    /*页面滚动范围*/
  }
  
  /* 菜单选项 结束*/
  
  .header1 {
    text-align: center;
    color: rgb(0, 0, 0);
    padding: 10px;
    margin-top: 40px;
    background-color: #ffffff;
  }
  
  /* 卡片开始 */
  .wrap {
    margin: auto;
    margin-top: 40px;
    max-width: 500px;
    width: 90%;
  }
  
  .card {
    padding: 15px;
    background-color: #fff;
    /* 圆角 */
    border-radius: 8px;
    /* 盒阴影 */
    box-shadow: 0px 10px 10px 5px rgba(0, 0, 0, 0.2);
  
  }
  
  .box-top {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 36px;
  }
  
  
  
  .title-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .box-title {
    border-left: 3px solid var(--purple);
    padding-left: 12px;
  }
  
  .appName {
    color: rgb(233, 121, 16);
    font-size: 25px;
    font-weight: 700;
  }
  
  .appExplain {
    font-size: 1em;
    line-height: 1.7;
    font-weight: 300;
    color: var(--text-gray);
  }
  
  .button {
    display: block;
    justify-content: center;
    align-items: center;
    text-align: center;
    margin-top: auto;
    padding: 16px;
    color: #000;
    background: transparent;
    box-shadow: 0px 0px 0px 1px black inset;
    transition: background 0.4s ease;
    border-radius: 10px;
  }
  
  .button:hover {
    background: var(--purple);
  }
  
  .button2 {
    display: block;
    justify-content: center;
    align-items: center;
    text-align: center;
    margin-top: auto;
    padding: 16px;
    color: #fff000;
    background: #cd0000;
    box-shadow: 0px 0px 0px 1px black inset;
    transition: background 0.4s ease;
    border-radius: 10px;
  }
  
  .button2:hover {
    background: var(--purple);
  }
  
  /* 卡片结束 */
  /* 售后 */
  .shouhou {
    margin: auto;
    margin-top: 150px;
    max-width: 500px;
    width: 85%;
    color: rgb(78, 76, 76);
    text-align: center;
    margin-bottom: 100px;
  }
  
  /* 页脚 */
  footer {
    text-align: center;
    color: rgb(131, 128, 128);
  }
  .lt{
    color: rgb(0, 0, 0);
    padding: 3px;
    margin-top: 3px;
    background-color: #ffffff;
  }
  /* 复制按钮 */
  .red_tkl {
    color: #faddde;
    border: solid 1px #980c10;
    background: #d81b21;
    background: -webkit-gradient(linear, left top, left bottombottom, from(#ed1c24), to(#aa1317));
    background: -moz-linear-gradient(top,  #ed1c24,  #aa1317);
    filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ed1c24', endColorstr='#aa1317');
  }
  .red_tkl:hover {
    background: #b61318;
    background: -webkit-gradient(linear, left top, left bottombottom, from(#c9151b), to(#a11115));
    background: -moz-linear-gradient(top,  #c9151b,  #a11115);
    filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#c9151b', endColorstr='#a11115');
  }
  .red_tkl:active {
    color: #de898c;
    background: -webkit-gradient(linear, left top, left bottombottom, from(#aa1317), to(#ed1c24));
    background: -moz-linear-gradient(top,  #aa1317,  #ed1c24);
    filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#aa1317', endColorstr='#ed1c24');
  }
  .button_tkl {
    display: inline-block;
    outline: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    font: 14px/100% Arial, Helvetica, sans-serif;
    padding: .5em 2em .55em;
    text-shadow: 0 1px 1px rgba(0,0,0,.3);
    -webkit-border-radius: .5em;
    -moz-border-radius: .5em;
    border-radius: .5em;
    -webkit-box-shadow: 0 1px 2px rgba(0,0,0,.2);
    -moz-box-shadow: 0 1px 2px rgba(0,0,0,.2);
    box-shadow: 0 1px 2px rgba(0,0,0,.2);
  }
  .button_tkl:hover {
    text-decoration: none;
  }
  .button_tkl:active {
    position: relative;
    top: 1px;
  }