/* 留言板 */
.message-board {
	position: fixed;
	bottom: 120px;
	right: 30px;
	width: 320px;
	background-color: white;
	border-radius: var(--border-radius);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
	padding: 20px;
	z-index: 1001;
	display: none;
	transform: translateY(20px);
	transition: var(--transition);
}

.message-board.active {
	display: block;
	transform: translateY(0);
}

.message-board h3 {
	color: var(--dark-color);
	margin-bottom: 15px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--light-gray);
	font-size: 1.3rem;
}


.close-btn {
	position: absolute;
	top: 10px;
	right: 10px;
	background: none;
	border: none;
	font-size: 1.2rem;
	cursor: pointer;
	color: var(--gray-color);
	width: 40px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	transition: var(--transition);
}

.close-btn:hover {
	background-color: #e55;
	color: #fff;
}


.form-group {
	margin-bottom: 12px;
}

.form-group label {
	display: block;
	margin-bottom: 2px;
	padding-left: 3px;
	font-weight: 500;
	font-size: 0.95rem;
}


.form-control {
	width: 100%;
	padding: 8px 10px;
	border: 1px solid #ddd;
	border-radius: var(--border-radius);
	font-family: 'Noto Sans SC', sans-serif;
	font-size: 15px;
	transition: var(--transition);
}

.form-control:focus {
	outline: none;
	border-color: var(--primary-color);
	box-shadow: 0 0 0 3px rgba(26, 107, 179, 0.1);
}

textarea.form-control {
	min-height: 100px;
	resize: vertical;
}

@media (max-width: 768px) {
	.message-board {
		width: 280px;
		right: 20px;
		bottom: 110px;
		padding: 15px;
	}
}

@media (max-width: 576px) {
	.message-board {
		width: calc(100% - 40px);
		right: 20px;
	}
}