.aa-coa-page {
	max-width: 820px;
	margin: 48px auto;
	padding: 0 20px;
}
.aa-coa-card {
	background: #fff;
	border: 1px solid #e6e8eb;
	border-radius: 12px;
	padding: 36px 32px;
	box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
	text-align: center;
}
.aa-coa-title {
	margin: 0 0 28px;
	font-size: 1.75rem;
	line-height: 1.25;
	color: #1a1f2b;
	font-weight: 600;
	letter-spacing: -0.01em;
}
.aa-coa-thumb-link {
	display: inline-block;
	text-decoration: none;
	color: inherit;
	transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.aa-coa-thumb-link:hover,
.aa-coa-thumb-link:focus-visible {
	transform: translateY(-2px);
}
.aa-coa-thumb {
	display: block;
	max-width: 100%;
	max-height: 70vh;
	height: auto;
	margin: 0 auto;
	border: 1px solid #e6e8eb;
	border-radius: 8px;
	background: #f6f7f9;
	box-shadow: 0 6px 22px rgba(0, 0, 0, 0.08);
}
.aa-coa-thumb-fallback {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	width: 280px;
	height: 360px;
	color: #6a7280;
	background: #f6f7f9;
	border: 1px solid #e6e8eb;
	border-radius: 8px;
}
.aa-coa-thumb-icon { font-size: 80px; line-height: 1; margin-bottom: 14px; }
.aa-coa-thumb-label { font-weight: 600; font-size: 1rem; }
.aa-coa-thumb-hint {
	display: block;
	margin-top: 12px;
	font-size: 0.85rem;
	color: #6a7280;
}
.aa-coa-external { margin: 32px 0 0; }
.aa-coa-external-btn {
	display: inline-block;
	padding: 12px 28px;
	background: #1a1f2b;
	color: #fff !important;
	text-decoration: none;
	font-weight: 600;
	border-radius: 8px;
	transition: background 0.15s ease;
}
.aa-coa-external-btn:hover,
.aa-coa-external-btn:focus-visible {
	background: #2d3445;
}
.aa-coa-empty {
	color: #b32d2e;
	font-style: italic;
}

@media (max-width: 600px) {
	.aa-coa-card { padding: 24px 18px; }
	.aa-coa-title { font-size: 1.4rem; }
	.aa-coa-thumb-fallback { width: 100%; max-width: 280px; }
}