<div class="cp_ipradio">
<ul>
	<li class="list_item">
		<input type="radio" class="option-input" name="cpipr08" id="c_rb1" />
		<label for="c_rb1">ネコ</label>
	</li>
	<li class="list_item">
		<input type="radio" class="option-input" name="cpipr08" id="c_rb2" />
		<label for="c_rb2">イヌ</label>
	</li>
	<li class="list_item">
		<input type="radio" class="option-input" name="cpipr08" id="c_rb3" />
		<label for="c_rb3">ウサギ</label>
	</li>
	<li class="list_item">
		<input type="radio" class="option-input" name="cpipr08" id="c_rb4" disabled/>
		<label for="c_rb4">トリ</label>
	</li>
</ul>
</div>

.cp_ipradio {
	width: 90%;
	margin: 2em auto;
	text-align: left;
}
.cp_ipradio ul {
	margin: 0;
	padding: 0;
	list-style: none;
}
.cp_ipradio .list_item {
	position: relative;
}
.cp_ipradio .list_item:hover label {
	color: #da3c41;
}
.cp_ipradio .list_item:hover label::before {
	margin-right: 2em;
	border: 0.4em solid #da3c41;
}
.cp_ipradio .option-input {
	display: none;
}
.cp_ipradio .option-input:checked + label {
	color: #da3c41;
}
.cp_ipradio .option-input:checked + label::before {
	margin-right: 2em;
	border: 0.4em solid #da3c41;
	background: #da3c41;
}
.cp_ipradio label {
	display: -webkit-box;
	display: flex;
	padding: 1em 0;
	cursor: pointer;
	-webkit-transition: all 0.25s linear;
	        transition: all 0.25s linear;
	text-transform: uppercase;
	-webkit-box-align: center;
	align-items: center;
}
.cp_ipradio label::before {
	display: block;
	width: 1em;
	height: 1em;
	margin-right: 0.625em;
	content: '';
	-webkit-transition: all 0.25s linear;
	        transition: all 0.25s linear;
	border: 0.4em solid #da3c41;
	border-radius: 50%;
}
.cp_ipradio .option-input:disabled + label {
	cursor: not-allowed;
	color: #b8b7b7;
}
.cp_ipradio .option-input:disabled + label::before {
	cursor: not-allowed;
	border: 0.4em solid #b8b7b7;
}