CSS实现单选框样式技巧

<input type="radio" name="theme" id="light" value="light">
<label for="light">浅色主题</label>
<p>&lt;input type=&quot;radio&quot; name=&quot;theme&quot; id=&quot;dark&quot; value=&quot;dark&quot;&gt;
<label for="dark">深色主题</label></p>

input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  opacity: 0;
  position: absolute;
}

label {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid #ccc;
  border-radius: 50%;
  margin-right: 8px;
  cursor: pointer;
  position: relative;
}
<p>/<em> 选中状态样式 </em>/
input[type="radio"]:checked + label::after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 10px;
height: 10px;
background-color: #007acc;
border-radius: 50%;
}</p>

<label>
  &lt;input type=&quot;radio&quot; name=&quot;size&quot; value=&quot;small&quot; /&gt;
  小号
</label>
<p><label>
&lt;input type=&quot;radio&quot; name=&quot;size&quot; value=&quot;large&quot; /&gt;
大号
</label></p>

label {
  padding: 8px 12px;
  border: 2px solid #ddd;
  border-radius: 6px;
  margin: 4px;
  display: inline-block;
  cursor: pointer;
}
<p>input[type="radio"] {
appearance: none;
}</p><p>input[type="radio"]:checked + label {
background-color: #007acc;
color: white;
border-color: #005a87;
}</p>

.card {
  padding: 16px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  width: 120px;
  text-align: center;
}
<p>input[type="radio"]:checked ~ .card {
border-color: #007acc;
background-color: #f0f7ff;
box-shadow: 0 0 4px rgba(0, 122, 204, 0.3);
}</p>