body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  width: 320px;
  background-color: #f5f5f5;
}

.container {
  padding: 16px;
}

.header {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.header img {
  width: 32px;
  height: 32px;
  margin-right: 10px;
}

.header h1 {
  margin: 0;
  font-size: 18px;
  flex-grow: 1;
}

.version {
  color: #888;
  margin: 0;
  font-size: 12px;
}

.settings {
  background-color: #fff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.setting-item {
  margin-bottom: 16px;
}

.setting-item:last-child {
  margin-bottom: 0;
}

.setting-item label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
  font-size: 14px;
}

.setting-item input[type="text"] {
  width: 100%;
  padding: 8px;
  border-radius: 4px;
  border: 1px solid #ddd;
  box-sizing: border-box;
}

.toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toggle span {
  font-size: 14px;
  font-weight: bold;
}

.switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .3s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
}

input:checked + .slider {
  background-color: #4CAF50;
}

input:focus + .slider {
  box-shadow: 0 0 1px #4CAF50;
}

input:checked + .slider:before {
  transform: translateX(22px);
}

.slider.round {
  border-radius: 24px;
}

.slider.round:before {
  border-radius: 50%;
}

.footer {
  margin-top: 16px;
  text-align: center;
}

button {
  background-color: #4CAF50;
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  width: 100%;
  transition: background-color 0.2s;
}

button:hover {
  background-color: #45a049;
}

.copyright {
  margin-top: 10px;
  font-size: 12px;
  color: #888;
}

.copyright a {
  color: #4CAF50;
  text-decoration: none;
}

.copyright a:hover {
  text-decoration: underline;
}