
body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 800px;
  margin: 50px auto 20px;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

h1 {
  color: #333;
}

p {
  font-size: 18px;
  color: #666;
}

button {
  padding: 10px 20px;
  margin: 10px;
  font-size: 16px;
  cursor: pointer;
  border: none;
  border-radius: 5px;
  color: white;
}

button.windows {
  background-color: #0078D6;
}

button.macos {
  background-color: #ee8bba;
}

button:hover {
  opacity: 0.8;
}

/*下半部分样式*/
.tutorial {
  padding: 10px;
  margin-left: 100px; 
  text-align: left;
}

.about-author-container {
  position: absolute;
  top: 10px;
  right: 10px;
  /*text-align: center;*/
}

.about-button {
  background-color: #6fc9ec;
  color: white;
  border: none;
  position: fixed;
  top: 10px;
  right: 10px;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 4px;
}

.about-button:hover {
  background-color: #88cef0;
}
  

.about-info {
  position: fixed;
  top: 50px;
  right: 10px;
  padding: 10px 20px;
  background-color: #ffffff;
  border: 1px solid #ccc;
  padding: 10px;
  border-radius: 4px;
  z-index: 10;
}

.about-info p {
  margin: 0;
  padding: 0;
}

.about-image {
  width: 180px;
  height: auto;
  margin-bottom: 10px;
}


@media (max-width: 768px) {
  .tutorial {
    margin-left: 0; 
    padding: 0 10px; 
  }
}

.step {
  margin-bottom: 30px;
  font-size: 20px;
  /*font-weight: bold;*/
}

.step img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-top: 10px;
}
