@media screen and (max-width: 768px) {  /*For mobile devices*/
  body {
    background-color: black;
    color: #ffffff;
    font-family: sans-serif;
    line-height: 1.5;
    margin: auto;
    max-width: 95%;
  }

  header {
    border-bottom: 1px solid #ffffff;
    margin-bottom: 1rem;
    padding-bottom: 0;
    text-align: center;
  }
  
  footer {
    flex-direction: row; /* 水平排列 */
    border-top: 1px solid #ffffff;
    margin-top: 3rem;
    text-align: center;
  }

  a {
    color: #ffff33;
    text-decoration: none;
  }
  
  img {
    max-width: 100%;
  }
  
  .center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
  }

  .menu_container {
  background-color: black;
  display: flex;
  flex-direction: row;
  align-items: center;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  padding: 0;
  gap: 10px;
  height: 50px;
}

.menu_container a {
  display: inline-block;
  color: white;
  background-color: black;
  height: 100%;
  padding: 0 5px;
  text-decoration: none;
  line-height: 50px;
  white-space: nowrap;
  flex-shrink: 0; /* 不要被壓縮 */
}

.menu_container a:hover {
  background-color: white;
  color: black;
}

  
  .home_container{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    height: auto;
  }

  .intro{
    display: block;
    width: 100%;
    height: auto;
    /* justify-content:center; */
  }

  .logo{
    width: 100%;
    height: 250px;
    display: flex;
    justify-content: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid white;
    margin-bottom: 1rem;
  }

  .index_columns {
    margin-top: 15px;
    width: 100%;
    display: grid;
    grid-template-columns: auto;
    gap: 2%;
    margin-bottom: 1rem;
    height: auto;
  }

  .index_columns a{
    color: #ffffff;
  }

  .index_rectangle{
    display: flex;
    margin:5px;
    width: 90%;
    border: 2px solid #ffffff;
    padding-left: 10px;
  }

  .index_content{
    align-content: center;
  }

  .class_info{
    margin-left: 1rem;
    width: 90%;
  }

  .blog{
    width: 100%;
  }

  .blog_title{
    margin: 3%;
  }

  .blog_container{
    display: flex;
    justify-content: center;
    width: 100%;
  }

  .blog_section{
    width: 97%;
  }

  .blog_block{
    width: auto;
    border: 2px solid white;
    border-radius: 10px;
    padding: 3%;
    padding-top: 1%;
    margin-top: 2rem;
    margin-bottom: 0;
  }

  .project_container {
    display: flex;
    flex-direction: column; /* 垂直排版 */
    margin-top: 2rem;
    /* margin-bottom: 30px; */
  }

  .project_container img {
    width: 100%;
    height: auto;
    border-top-right-radius: 10px;
    border-top-left-radius: 10px;
    margin-bottom: 0;
  }

  .project_section {
    display: flex;
    flex-direction: column;
  }

  .project_host{
    display: flex;
    padding: 10px;
    background-color: #222;
    color: white;
    margin: 0;
    padding-bottom: 0;
  }

  .project_graph{
    width: 50%;
    height: 50%;
  }

  .project_hoster{
    align-content: center;
    margin: auto;
  }

  .project_content {
    margin-top: 0;
    padding-top: 0;
    padding: 15px;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    background-color: #222;
    color: white;
  }

  .project_continue {
    margin-top: 10px;
  }

  .borrow{
    margin-left: 1rem;
  }

  .equipment_title{
    margin-left: 1rem;
  }

  .equipment_container{
    display: block;
    width: 100%; 
    gap: 2rem;
  }

  .equipment_section{
    background-color: #222;
    display: flex;
    flex-direction: column;
    justify-items: center;
    align-items: center;
    margin: 10px;
    margin-top: 25px;
    padding-top: 15px;
    padding-bottom: 40px;
    padding-left: 0;
    padding-right: 0;
    /* border: 2px solid #ffffff; */
    border-radius: 10px;
  }

.equipment_section h2 {
  width: 100%;
  margin-bottom: 15px;
  margin-top: 10px;
  text-align: center;
}

  .equipment_section p{
  margin: 0;
  padding: 0;
  width: 85%;
  /* text-align: center; */
  box-sizing: border-box;
}

.equipment_section img{
  width: 100%;
  height: 75%;
  display: block;
  margin: 0;
  padding: 0;
  padding-bottom: 10px;
  border-radius: 8px;
}


}

@media screen and (min-width: 768px) {  /* For desktops */

  body {
    background-color: black;
    color: #ffffff;
    font-family: sans-serif;
    line-height: 1.5;
    margin: auto;
    max-width: 70%;
  }

  header {
    border-bottom: 1px solid #ffffff;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    text-align: center;
  }
  
  footer {
    flex-direction: row; /* 水平排列 */
    border-top: 1px solid #ffffff;
    margin-top: 3rem;
    text-align: center;
  }

  a {
    color: #ffff33;
    text-decoration: none;
  }
  
  img {
    max-width: 100%;
  }
  
  .center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
  }

    .menu_container {
    background-color: black;
    display: flex;
    position: relative;
    font-size: 20px;
    top: 10px;
    flex-direction: row;
    justify-content: space-between;
    border-bottom: 1px;
    width: 100%;
    height: 50px;
    align-items: center;
  }

  .menu_container a{
    padding: 0;
    align-content: center;
    display: block;
    background-color: black;
    height: 100%;
    color: #ffffff;
    flex: 1;
  }

  .menu_container a:hover{
    background : white;
    color : black;
  }
  
  .home_container{
    display: block;
    margin: auto;
    align-items: center;
    width: 85%;
  }

  .intro{
    display: flex;
    height: 150px;
    border-bottom: 1px solid white;
    padding-bottom: 2rem;
    padding-top: 1rem;
    border-width: 100%;
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .logo{
    width: 25%; 
    height: 100%;
  }

  .index_columns {
    margin-top: 15px;
    width: 100%;
    display: grid;
    grid-template-columns: auto;
    gap: 2%;
  }

  .index_columns a{
    color: #ffffff;
  }

  .index_rectangle{
    display: flex;
    margin:5px;
    width: 95%;
    border: 2px solid #ffffff;
    padding-left: 10px;
  }

  .index_content{
    align-content: center;
  }

  .class_info{
    margin-left: 2rem;
    width: 70%;
  }

  .blog_title{
    margin-left: 10%;
  }

  .blog_container{
    margin-top: 1rem;
    margin-bottom: 3rem;
    display: flex;
    justify-content: center;
    width: 100%;
  }

  .blog_section{
    width: 80%;
  }

  .blog_block{
    width: auto;
    border: 2px solid white;
    border-radius: 10px;
    padding: 5%;
    padding-top: 1%;
  }

.project{
  padding-left: 5%;
}

.project_container {
    width: 95%;
    /* border: 2px solid white; */
        background-color: #222;
        border-radius: 15px;
    padding: 25px;
    box-sizing: border-box;
    font-size: 18px;
    margin-top: 2rem;
  }
  
  .project_container a:hover{
    color: #ffff33;
    text-decoration: none;
  }

  .project_section {
    display: flex;
    justify-content: space-between;
  }
  
  .project_host{
    width:20%;
  }

  .project_content{
    width: 75%;
  }

  .project_continue{
    width: 100%
  }

  .borrow{
    margin-left: 1rem;
  }

  .equipment_title{
    margin-left: 1rem;
  }

  .equipment_container{
    display: flex; 
    flex-direction: row;
    justify-content: space-between;
  }

  .equipment_section{
    flex: 1;
      background-color: #222; 
    display: flex;
    flex-direction: column;
    justify-items: center;
    align-items: center;
    margin: 10px;
    padding-top: 15px;
    padding-bottom: 40px;
    padding-left: 0;
    padding-right: 0;
    /* border: 2px solid #ffffff; */
    border-radius: 10px;
  }

.equipment_section h2 {
  width: 100%;
  margin-bottom: 15px;
  margin-top: 10px;
  text-align: center;
}

.equipment_section p{
  margin: 0;
  padding: 0;
  width: 85%;
  /* text-align: center; */
  box-sizing: border-box;
}

.equipment_section img{
  width: 100%;
  height: 75%;
  display: block;
  margin: 0;
  padding: 0;
  padding-bottom: 10px;
  border-radius: 8px;
}
  
}