#qrsApp {
	--qrs-ink: #0f172a;
	--qrs-muted: #475569;
	--qrs-line: #e2e8f0;
	--qrs-primary: #3b82f6;
	--qrs-primary-hover: #2563eb;
	--qrs-soft: #eff6ff;
	--qrs-accent: #1d4ed8;
	--qrs-success: #16a34a;
	--qrs-success-soft: #f0fdf4;
	--qrs-radius: 0.375rem;
	--qrs-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
	--qrs-font-display: system-ui, -apple-system, "Segoe UI", sans-serif;
	--qrs-font-body: system-ui, -apple-system, "Segoe UI", sans-serif;
	--qrs-font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-family: var(--qrs-font-body);
	color: var(--qrs-ink);
}

#qrsApp .qrs-shell {
	background:
		radial-gradient(1100px 400px at 8% -12%, rgba(59, 130, 246, 0.14), transparent 55%),
		radial-gradient(900px 360px at 100% 0%, rgba(22, 163, 74, 0.06), transparent 50%),
		linear-gradient(180deg, #f8fafc 0%, #ffffff 48%);
	border: 1px solid var(--qrs-line);
	border-radius: var(--qrs-radius);
	box-shadow: var(--qrs-shadow);
	overflow: hidden;
}

#qrsApp .qrs-shell-form {
	height: auto;
	align-self: start;
}

#qrsApp .qrs-shell-result {
	height: 100%;
	min-height: 22rem;
}

#qrsApp .qrs-panel {
	background: rgba(255, 255, 255, 0.94);
	backdrop-filter: blur(6px);
}

#qrsApp .qrs-shell-result .qrs-panel {
	min-height: 100%;
}

#qrsApp .qrs-tabs {
	display: flex;
	flex-wrap: nowrap;
	gap: 0.5rem;
	padding: 0.35rem;
	border-radius: 999px;
	background: #eff6ff;
	border: 1px solid #dbeafe;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
}

#qrsApp .qrs-tabs::-webkit-scrollbar {
	display: none;
}

#qrsApp .qrs-tab {
	flex: 1 0 auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	height: 2.5rem;
	padding: 0 0.95rem;
	border: 0;
	border-radius: 999px;
	background: transparent;
	color: #475569;
	font-size: 0.875rem;
	font-weight: 600;
	white-space: nowrap;
	cursor: pointer;
	transition: background-color 200ms ease, color 200ms ease, box-shadow 200ms ease;
}

#qrsApp .qrs-tab:hover {
	background: rgba(255, 255, 255, 0.7);
}

#qrsApp .qrs-tab.is-active {
	background: #fff;
	color: #2563eb;
	box-shadow: 0 1px 3px rgba(37, 99, 235, 0.18);
}

#qrsApp .qrs-tab:focus-visible {
	outline: 2px solid var(--qrs-primary);
	outline-offset: 2px;
}

#qrsApp .qrs-label {
	display: block;
	margin-bottom: 0.5rem;
	font-size: 0.875rem;
	font-weight: 600;
	color: #334155;
	font-family: var(--qrs-font-display);
}

#qrsApp .qrs-stage {
	position: relative;
	min-height: 16rem;
	border-radius: 0.65rem;
	overflow: hidden;
}

#qrsApp .qrs-stage.is-drag .qrs-preview-wrap {
	outline: 2px solid var(--qrs-primary);
	outline-offset: -2px;
}

#qrsApp .qrs-drop {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.35rem;
	min-height: 16rem;
	height: 100%;
	padding: 1.25rem;
	border: 1.5px dashed #93c5fd;
	border-radius: 0.65rem;
	background: linear-gradient(180deg, var(--qrs-soft), #fff 70%);
	cursor: pointer;
	text-align: center;
	transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

#qrsApp .qrs-drop:hover,
#qrsApp .qrs-drop.is-drag {
	border-color: var(--qrs-primary);
	background: #dbeafe;
	box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.12);
}

#qrsApp .qrs-drop:focus-visible {
	outline: 2px solid var(--qrs-primary);
	outline-offset: 2px;
}

#qrsApp .qrs-drop-icon {
	width: 2rem;
	height: 2rem;
	color: var(--qrs-primary);
	margin-bottom: 0.25rem;
}

#qrsApp .qrs-drop-title {
	font-size: 0.9375rem;
	font-weight: 600;
	color: var(--qrs-ink);
	font-family: var(--qrs-font-display);
	word-break: break-all;
}

#qrsApp .qrs-drop-sub {
	font-size: 0.75rem;
	color: #64748b;
}

#qrsApp .qrs-meta {
	margin: 0;
	font-size: 0.75rem;
	color: #64748b;
	font-variant-numeric: tabular-nums;
}

#qrsApp .qrs-preview-wrap {
	display: flex;
	flex-direction: column;
	min-height: 16rem;
	border: 1px solid var(--qrs-line);
	border-radius: 0.65rem;
	background: #fff;
	overflow: hidden;
}

#qrsApp .qrs-preview {
	position: relative;
	flex: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 12rem;
	padding: 0.85rem;
	/* 棋盘格：模拟透明底 */
	background-color: #f8fafc;
	background-image:
		linear-gradient(45deg, #e2e8f0 25%, transparent 25%),
		linear-gradient(-45deg, #e2e8f0 25%, transparent 25%),
		linear-gradient(45deg, transparent 75%, #e2e8f0 75%),
		linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
	background-size: 16px 16px;
	background-position: 0 0, 0 8px, 8px -8px, -8px 0;
	overflow: hidden;
}

#qrsApp .qrs-preview img {
	max-width: 100%;
	max-height: 18rem;
	object-fit: contain;
	border-radius: 0.25rem;
}

#qrsApp .qrs-overlay {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	pointer-events: none;
	touch-action: none;
}

#qrsApp .qrs-overlay.is-pickable {
	pointer-events: auto;
	cursor: crosshair;
}

#qrsApp .qrs-crop-hint {
	margin: -0.15rem 0 0.75rem;
	padding: 0;
	font-size: 0.75rem;
	color: #64748b;
	line-height: 1.4;
}

#qrsApp .qrs-preview-bar {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	padding: 0.85rem 1rem;
	background: #fff;
	border-top: 1px solid var(--qrs-line);
}

@media (min-width: 480px) {
	#qrsApp .qrs-preview-bar {
		flex-direction: row;
		align-items: center;
		justify-content: space-between;
	}
}

#qrsApp .qrs-preview-meta {
	min-width: 0;
	flex: 1;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

#qrsApp .qrs-preview-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	flex-shrink: 0;
}

#qrsApp .qrs-preview-actions .qrs-btn {
	min-height: 2.35rem;
	padding: 0 0.95rem;
	font-size: 0.8125rem;
}

#qrsApp .qrs-camera-stage {
	position: relative;
	overflow: hidden;
	border-radius: 0.65rem;
	background: #0f172a;
	aspect-ratio: 4 / 3;
	min-height: 12rem;
}

#qrsApp .qrs-video {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

#qrsApp .qrs-camera-frame {
	position: absolute;
	inset: 18%;
	border: 2px solid rgba(255, 255, 255, 0.85);
	border-radius: 0.75rem;
	box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.35);
	pointer-events: none;
}

#qrsApp .qrs-camera-hint {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0.75rem;
	margin: 0;
	text-align: center;
	font-size: 0.75rem;
	font-weight: 600;
	color: #f8fafc;
	text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
	pointer-events: none;
}

#qrsApp .qrs-note {
	display: flex;
	align-items: flex-start;
	gap: 0.5rem;
	margin: 0.85rem 0 0;
	padding: 0.65rem 0.75rem;
	border-radius: 0.5rem;
	background: #f8fafc;
	border: 1px solid var(--qrs-line);
	font-size: 0.75rem;
	line-height: 1.5;
	color: #64748b;
}

#qrsApp .qrs-note-icon {
	flex-shrink: 0;
	width: 1rem;
	height: 1rem;
	margin-top: 0.1rem;
	color: var(--qrs-primary);
}

#qrsApp .qrs-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.4rem;
	min-height: 2.75rem;
	padding: 0 1.15rem;
	border-radius: 0.5rem;
	font-size: 0.875rem;
	font-weight: 600;
	border: 1px solid transparent;
	cursor: pointer;
	transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}

#qrsApp .qrs-btn:focus-visible {
	outline: 2px solid var(--qrs-primary);
	outline-offset: 2px;
}

#qrsApp .qrs-btn-primary {
	background: var(--qrs-primary);
	color: #fff;
}

#qrsApp .qrs-btn-primary:hover:not(:disabled) {
	background: var(--qrs-primary-hover);
}

#qrsApp .qrs-btn-primary:disabled:not(.is-loading) {
	opacity: 0.55;
	cursor: not-allowed;
}

/* 识别中固定灰色，覆盖 primary / disabled / hover / active，避免闪浅蓝 */
#qrsApp .qrs-btn.qrs-btn-primary.is-loading,
#qrsApp .qrs-btn.qrs-btn-primary.is-loading:hover,
#qrsApp .qrs-btn.qrs-btn-primary.is-loading:active,
#qrsApp .qrs-btn.qrs-btn-primary.is-loading:focus,
#qrsApp .qrs-btn.qrs-btn-primary.is-loading:disabled,
#qrsApp .qrs-btn.qrs-btn-primary.is-loading:disabled:hover,
#qrsApp .qrs-btn.qrs-btn-primary.is-loading:disabled:active {
	background: #94a3b8;
	border-color: #94a3b8;
	color: #fff;
	opacity: 1;
	cursor: not-allowed;
	pointer-events: none;
	box-shadow: none;
}

#qrsApp .qrs-btn.is-loading::before {
	content: "";
	width: 0.85rem;
	height: 0.85rem;
	border: 2px solid rgba(255, 255, 255, 0.35);
	border-top-color: #fff;
	border-radius: 999px;
	animation: qrs-spin 0.7s linear infinite;
}

@keyframes qrs-spin {
	to {
		transform: rotate(360deg);
	}
}

@media (prefers-reduced-motion: reduce) {
	#qrsApp .qrs-btn.is-loading::before {
		animation: none;
		border-top-color: #fff;
		opacity: 0.85;
	}
}

#qrsApp .qrs-btn-muted {
	background: #f8fafc;
	color: #1e293b;
	border-color: #e2e8f0;
}

#qrsApp .qrs-btn-muted:hover:not(:disabled) {
	background: #f1f5f9;
}

#qrsApp .qrs-btn-muted:disabled {
	opacity: 0.55;
	cursor: not-allowed;
}

#qrsApp .qrs-btn-success {
	background: var(--qrs-success);
	color: #fff;
}

#qrsApp .qrs-btn-success:hover {
	background: #15803d;
}

#qrsApp .qrs-result-toolbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	flex-wrap: wrap;
	margin-bottom: 0.75rem;
}

#qrsApp .qrs-result-count {
	margin-left: 0.25rem;
	font-size: 0.75rem;
	font-weight: 500;
	color: #94a3b8;
}

#qrsApp .qrs-result-list {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
	margin-bottom: 0.75rem;
	max-height: 9.5rem;
	overflow-y: auto;
}

#qrsApp .qrs-result-item {
	display: flex;
	align-items: center;
	gap: 0.55rem;
	width: 100%;
	padding: 0.55rem 0.7rem;
	border: 1px solid #e2e8f0;
	border-radius: 0.45rem;
	background: #fff;
	text-align: left;
	cursor: pointer;
	transition: border-color 0.2s ease, background-color 0.2s ease;
}

#qrsApp .qrs-result-item:hover {
	border-color: #93c5fd;
	background: #f8fbff;
}

#qrsApp .qrs-result-item.is-active {
	border-color: #3b82f6;
	background: #eff6ff;
}

#qrsApp .qrs-result-item:focus-visible {
	outline: 2px solid var(--qrs-primary);
	outline-offset: 2px;
}

#qrsApp .qrs-result-idx {
	flex-shrink: 0;
	width: 1.35rem;
	height: 1.35rem;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 0.3rem;
	background: #e2e8f0;
	color: #475569;
	font-size: 0.6875rem;
	font-weight: 700;
}

#qrsApp .qrs-result-item.is-active .qrs-result-idx {
	background: #3b82f6;
	color: #fff;
}

#qrsApp .qrs-result-item-main {
	min-width: 0;
	flex: 1;
}

#qrsApp .qrs-result-item-type {
	display: block;
	font-size: 0.6875rem;
	color: #64748b;
	margin-bottom: 0.1rem;
}

#qrsApp .qrs-result-item-text {
	display: block;
	font-size: 0.8125rem;
	color: #0f172a;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

#qrsApp .qrs-result-tools {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.65rem;
}

#qrsApp .qrs-type {
	display: inline-flex;
	align-items: baseline;
	gap: 0.4rem;
	padding-right: 0.65rem;
	border-right: 1px solid #e2e8f0;
	line-height: 1.2;
}

#qrsApp .qrs-type-kicker {
	font-size: 0.6875rem;
	font-weight: 500;
	color: #94a3b8;
	letter-spacing: 0.04em;
}

#qrsApp .qrs-output-box {
	position: relative;
	display: flex;
	flex-direction: column;
	border: 1px solid var(--qrs-line);
	border-radius: 0.5rem;
	background: #f8fafc;
	overflow: hidden;
}

#qrsApp .qrs-output-box:focus-within {
	border-color: #93c5fd;
}

#qrsApp .qrs-textarea {
	width: 100%;
	min-height: 10rem;
	padding: 0.9rem 1rem 2.15rem;
	border: none;
	border-radius: 0;
	background: transparent;
	color: var(--qrs-ink);
	font-size: 0.8125rem;
	line-height: 1.55;
	resize: vertical;
	font-family: var(--qrs-font-mono);
	word-break: break-all;
}

#qrsApp .qrs-textarea:focus {
	outline: none;
	box-shadow: none;
}

#qrsApp .qrs-char-count {
	position: absolute;
	right: 0.75rem;
	bottom: 0.55rem;
	z-index: 1;
	margin: 0;
	padding: 0;
	border: none;
	background: transparent;
	box-shadow: none;
	color: #94a3b8;
	font-size: 0.75rem;
	font-weight: 500;
	font-variant-numeric: tabular-nums;
	letter-spacing: 0.01em;
	white-space: nowrap;
	pointer-events: none;
	line-height: 1;
}

#qrsApp .qrs-badge {
	display: inline;
	padding: 0;
	border: none;
	border-radius: 0;
	background: transparent;
	box-shadow: none;
	color: #3b82f6;
	font-size: 0.8125rem;
	font-weight: 400;
	letter-spacing: 0.01em;
	border-bottom: 2px solid rgba(59, 130, 246, 0.35);
	line-height: 1.2;
}

#qrsApp .qrs-copy {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 1.75rem;
	padding: 0 0.65rem;
	border: 1px solid #d1d5db;
	border-radius: 0.4rem;
	background: #fff;
	color: #374151;
	font-size: 0.75rem;
	font-weight: 600;
	cursor: pointer;
	transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

#qrsApp .qrs-copy:hover,
#qrsApp .qrs-copy.is-done {
	background: var(--qrs-soft);
	border-color: #93c5fd;
	color: var(--qrs-accent);
}

#qrsApp .qrs-copy:focus-visible {
	outline: 2px solid var(--qrs-primary);
	outline-offset: 2px;
}

#qrsApp .qrs-parsed {
	margin-top: 1rem;
	padding: 0.85rem 1rem;
	border: 1px solid var(--qrs-line);
	border-radius: 0.5rem;
	background: #fff;
}

#qrsApp .qrs-parsed-row {
	display: grid;
	grid-template-columns: 5.5rem minmax(0, 1fr);
	gap: 0.5rem 0.75rem;
	padding: 0.35rem 0;
	font-size: 0.8125rem;
	border-bottom: 1px dashed #eef2f7;
}

#qrsApp .qrs-parsed-row:last-child {
	border-bottom: none;
	padding-bottom: 0;
}

#qrsApp .qrs-parsed-key {
	color: #64748b;
	font-weight: 600;
}

#qrsApp .qrs-parsed-val {
	color: var(--qrs-ink);
	word-break: break-all;
}

#qrsApp .qrs-actions .qrs-btn {
	min-height: 2.35rem;
	font-size: 0.8125rem;
}

#qrsApp .qrs-error {
	padding: 0.75rem 0.95rem;
	border: 1px solid #fecaca;
	border-radius: 0.5rem;
	background: #fef2f2;
	color: #991b1b;
	font-size: 0.875rem;
	line-height: 1.5;
}

#qrsApp .qrs-empty {
	border: 1px dashed #e5e7eb;
	background: #f9fafb;
	border-radius: var(--qrs-radius);
	color: #9ca3af;
}

#qrsApp .hidden {
	display: none !important;
}

#qrsApp .qrs-notes {
	background: #fff;
	border-radius: var(--qrs-radius);
	box-shadow: var(--qrs-shadow);
	border: 1px solid var(--qrs-line);
}

#qrsApp .qrs-notes a {
	color: #2563eb;
}

#qrsApp .qrs-notes code {
	font-size: 0.85em;
	background: #f1f5f9;
	padding: 0.05em 0.3em;
	border-radius: 0.25rem;
}

@media (prefers-reduced-motion: reduce) {
	#qrsApp .qrs-drop,
	#qrsApp .qrs-btn,
	#qrsApp .qrs-copy,
	#qrsApp .qrs-tab {
		transition: none !important;
	}
}