.radio-card-group {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	padding: 0;
}

.radio-card-group--stack {
	flex-direction: column;
}

.radio-card-section {
	margin-top: 16px;
}

.radio-card-section:first-child {
	margin-top: 0;
}

.radio-card-section-title {
	margin: 0 0 8px;
	font-weight: 700;
}

.radio-card {
	display: flex;
	align-items: center;
	min-height: 48px;
	padding: 0;
}

.radio-card input[type="radio"] {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.radio-card-label {
	display: flex;
	align-items: center;
	gap: 10px;
	min-width: 148px;
	min-height: 48px;
	padding: 10px 16px;
	background: #fff;
	border: 1px solid #8e8e8e;
	border-radius: 6px;
	font-weight: 700;
	line-height: 1.4;
	cursor: pointer;
	box-sizing: border-box;
}

.radio-card-label::before {
	content: "";
	flex: 0 0 18px;
	width: 18px;
	height: 18px;
	border: 2px solid #b8b8b8;
	border-radius: 50%;
	box-sizing: border-box;
	background: #fff;
}

.radio-card-label.is-checked::before {
	content: "✓";
	display: flex;
	align-items: center;
	justify-content: center;
	border-color: #65b300;
	background: #65b300;
	color: #fff;
	font-size: 12px;
	font-weight: 700;
}

.radio-card-label.is-checked {
	border-color: #7d7d7d;
}

.radio-card-label--wide {
	width: 100%;
}

.estimate-area {
	padding: 4px 0 0;
}

.estimate-area p {
	margin: 0 0 10px;
}

.estimate-note {
	font-size: 15px;
	line-height: 1.7;
	color: #222;
}

.estimate-caution {
	display: none;
	margin: 14px 0 10px;
	padding: 0;
}

.estimate-caution .lead {
	margin: 0;
}

.estimate-block .radio-group label {
	padding: 1.2em 1em;
}

.estimate-block .b_title01 {
	font-size: 1.5rem;
	line-height: 1.3;
}

.estimate-block .sub_ti {
	font-size: 0.95rem;
	line-height: 1.6;
}

.estimate-block .txt {
	font-size: 0.9rem;
	line-height: 1.6;
}

.estimate-block .build,
.estimate-block .residence {
	margin-bottom: 1em;
}

.estimate-block .build.radio-group {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 10px 12px;
}

.estimate-block .build.radio-group .b_button {
	margin-bottom: 0;
}

.estimate-block .build.radio-group .smtnone {
	display: none;
}

.estimate-block .build.radio-group label {
	padding: 0.9em 0.85em;
}

.estimate-block .build .b_title01 {
	font-size: 1.2rem;
}

.estimate-block .build .txt {
	font-size: 0.82rem;
	line-height: 1.45;
}

.estimate-block .area_txt {
	width: 220px;
	max-width: 100%;
	margin-bottom: 10px;
}

@media (max-width: 767px) {
	.radio-card-group {
		gap: 10px;
	}

	.radio-card {
		width: 100%;
	}

	.radio-card-label,
	.radio-card-label--wide {
		width: 100%;
		min-width: 0;
	}

	.estimate-block .b_title01 {
		font-size: 1.2rem;
	}

	.estimate-block .sub_ti,
	.estimate-block .txt {
		font-size: 0.85rem;
	}

	.estimate-block .build.radio-group {
		grid-template-columns: 1fr;
	}
}