/* NAT Check 1.1 — 作用域限定在 #natc-app */

#natc-app {
	--natc-card: #fff;
	--natc-cell: #fbfaf9;
	--natc-chip: #f4f3f1;
	--natc-sunken: #faf9f8;
	--natc-line: #e8e6e3;
	--natc-line-soft: #f1efed;
	--natc-text: #1b1917;
	--natc-sub: #6f6862;
	--natc-faint: #a19a93;
	--natc-accent: #1f6feb;
	--natc-accent-soft: #eef4fd;
	--natc-ok: #0d7a45;
	--natc-ok-soft: #f0f9f3;
	--natc-ok-line: #cfe8d9;
	--natc-warn: #9a5b06;
	--natc-warn-soft: #fdf8ee;
	--natc-warn-line: #f0e2c6;
	--natc-bad: #a92626;
	--natc-bad-soft: #fdf5f5;
	--natc-bad-line: #f0d9d9;
	--natc-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

	max-width: 860px;
	margin: 0 auto;
	color: var(--natc-text);
	font-size: 13.5px;
	line-height: 1.7;
	-webkit-font-smoothing: antialiased;
	text-align: left;
	letter-spacing: .005em;
}

#natc-app *,
#natc-app *::before,
#natc-app *::after { box-sizing: border-box; }

#natc-app p { margin: 0; }
#natc-app ol,
#natc-app ul {
	margin: 0;
	padding: 0 0 0 17px;
	background: none;
	border: 0;
	box-shadow: none;
	list-style-position: outside;
}
#natc-app li {
	margin: 0 0 5px;
	padding: 0;
	line-height: 1.75;
	background: none;
	border: 0;
}
#natc-app li:last-child { margin-bottom: 0; }
#natc-app li::marker { color: var(--natc-faint); }
#natc-app .natc-h { font-size: 14px; font-weight: 600; margin: 0 0 12px; }

/* ---------- 面板 ---------- */
#natc-app .natc-panel {
	background: var(--natc-card);
	border: 1px solid var(--natc-line);
	border-radius: 12px;
	padding: 20px 22px;
	margin: 0 0 14px;
}
#natc-app .natc-panel-h {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
	margin: 0 0 4px;
}
#natc-app h2 {
	font-size: 13px;
	font-weight: 600;
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	color: var(--natc-text);
	letter-spacing: .01em;
	line-height: 1.6;
}
#natc-app h2::before,
#natc-app h2::after { content: none; display: none; }
#natc-app .natc-panel-hint { font-size: 11.5px; color: var(--natc-faint); }

/* ---------- 运行状态 ---------- */
#natc-app .natc-run { margin: 0 0 16px; }
#natc-app .natc-bar {
	height: 2px;
	background: var(--natc-line-soft);
	border-radius: 2px;
	overflow: hidden;
	margin: 0 0 10px;
}
#natc-app .natc-bar i {
	display: block;
	height: 100%;
	width: 0;
	background: var(--natc-accent);
	transition: width .4s cubic-bezier(.4, 0, .2, 1);
}
#natc-app .natc-run-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
	flex-wrap: wrap;
}
#natc-app .natc-steps {
	display: flex;
	flex-wrap: wrap;
	gap: 4px 16px;
	font-size: 12px;
	color: var(--natc-faint);
}
#natc-app .natc-steps span { transition: color .2s; }
#natc-app .natc-steps span.on { color: var(--natc-text); }
#natc-app .natc-steps span.done { color: var(--natc-sub); }
#natc-app .natc-run-right { display: flex; align-items: center; gap: 12px; }
#natc-app .natc-elapsed { font-size: 11.5px; color: var(--natc-faint); font-variant-numeric: tabular-nums; }

#natc-app .natc-btn {
	appearance: none;
	-webkit-appearance: none;
	border: 1px solid var(--natc-line);
	background: var(--natc-card);
	color: var(--natc-sub);
	font: inherit;
	font-size: 12px;
	line-height: 1.4;
	padding: 5px 12px;
	border-radius: 6px;
	cursor: pointer;
	box-shadow: none;
	transition: color .15s, border-color .15s, background .15s;
}
#natc-app .natc-btn:hover { color: var(--natc-text); border-color: var(--natc-faint); background: var(--natc-cell); }
#natc-app .natc-btn:disabled { opacity: .45; cursor: default; }

/* ---------- 结论 ---------- */
#natc-app .natc-hero { padding: 22px 24px 20px; }
#natc-app .natc-hero-kicker {
	display: flex;
	align-items: center;
	gap: 10px;
	margin: 0 0 12px;
}
#natc-app .natc-badge {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	height: 26px;
	padding: 0 10px;
	border-radius: 6px;
	font-size: 12.5px;
	font-weight: 500;
	line-height: 1;
	border: 1px solid transparent;
	background: var(--natc-chip);
	color: var(--natc-sub);
	border-color: var(--natc-line);
	white-space: nowrap;
}
#natc-app .natc-badge.ok { background: var(--natc-ok-soft); color: var(--natc-ok); border-color: var(--natc-ok-line); }
#natc-app .natc-badge.warn { background: var(--natc-warn-soft); color: var(--natc-warn); border-color: var(--natc-warn-line); }
#natc-app .natc-badge.bad { background: var(--natc-bad-soft); color: var(--natc-bad); border-color: var(--natc-bad-line); }
#natc-app .natc-badge.neutral { background: var(--natc-chip); color: var(--natc-sub); border-color: var(--natc-line); }

#natc-app .natc-code {
	font-family: var(--natc-mono);
	font-size: 11px;
	letter-spacing: .08em;
	color: var(--natc-faint);
	text-transform: uppercase;
}
#natc-app .natc-meta {
	font-size: 11.5px;
	color: var(--natc-faint);
	padding-left: 10px;
	border-left: 1px solid var(--natc-line);
	line-height: 1.3;
}
#natc-app .natc-meta:empty { display: none; }

#natc-app .natc-hero-title {
	font-size: 19px;
	font-weight: 500;
	margin: 0 0 8px;
	padding: 0;
	border: 0;
	line-height: 1.45;
	letter-spacing: -.01em;
	color: var(--natc-text);
}
#natc-app .natc-hero-desc {
	margin: 0;
	color: var(--natc-sub);
	font-size: 13px;
	line-height: 1.75;
	max-width: 62em;
}

#natc-app .natc-facts {
	display: flex;
	flex-wrap: wrap;
	gap: 4px 34px;
	margin: 18px 0 0;
	padding: 14px 0 0;
	border-top: 1px solid var(--natc-line);
}
#natc-app .natc-fact dt {
	font-size: 11px;
	color: var(--natc-faint);
	margin: 0 0 2px;
	letter-spacing: .02em;
}
#natc-app .natc-fact dd {
	margin: 0;
	font-size: 13px;
	font-family: var(--natc-mono);
	color: var(--natc-text);
	font-variant-numeric: tabular-nums;
	word-break: break-all;
}
#natc-app .natc-fact dd.plain { font-family: inherit; }

/* 结果面板的极淡底色 */
#natc-app .natc-hero.natc-tone-ok { background: #f7fcf9; border-color: #dceee4; }
#natc-app .natc-hero.natc-tone-warn { background: #fffcf4; border-color: #f0e6cf; }
#natc-app .natc-hero.natc-tone-bad { background: #fef9f9; border-color: #f0dada; }
#natc-app .natc-hero.natc-tone-neutral { background: #fcfcfb; border-color: var(--natc-line); }

/* ---------- 实际影响 ---------- */
#natc-app .natc-uses { margin: 8px 0 0; }
#natc-app .natc-use {
	display: grid;
	grid-template-columns: minmax(108px, 132px) 74px 1fr;
	gap: 4px 14px;
	align-items: baseline;
	padding: 10px 0;
	border-bottom: 1px solid var(--natc-line-soft);
}
#natc-app .natc-use:last-child { border-bottom: 0; padding-bottom: 4px; }
#natc-app .natc-use-name {
	font-size: 13px;
	color: var(--natc-text);
	line-height: 1.6;
}
#natc-app .natc-use-state {
	font-size: 12px;
	font-weight: 500;
	white-space: nowrap;
	line-height: 1.6;
}
#natc-app .natc-use-state::before {
	content: "";
	display: inline-block;
	width: 5px;
	height: 5px;
	border-radius: 50%;
	margin-right: 6px;
	vertical-align: 2px;
	background: var(--natc-faint);
}
#natc-app .natc-use-state.ok { color: var(--natc-ok); }
#natc-app .natc-use-state.ok::before { background: var(--natc-ok); }
#natc-app .natc-use-state.warn { color: var(--natc-warn); }
#natc-app .natc-use-state.warn::before { background: var(--natc-warn); }
#natc-app .natc-use-state.bad { color: var(--natc-bad); }
#natc-app .natc-use-state.bad::before { background: var(--natc-bad); }
#natc-app .natc-use-state.na { color: var(--natc-faint); }
#natc-app .natc-use-why {
	font-size: 12.5px;
	color: var(--natc-sub);
	line-height: 1.7;
}

#natc-app .natc-tips {
	margin: 14px 0 0;
	padding: 13px 0 0;
	border-top: 1px solid var(--natc-line-soft);
	font-size: 12.5px;
	color: var(--natc-sub);
	line-height: 1.8;
}
#natc-app .natc-tips b { color: var(--natc-text); font-weight: 600; }
#natc-app .natc-tips ol { margin: 4px 0 0; padding-left: 18px; }
#natc-app .natc-tips li { margin: 0 0 2px; }

/* ---------- 技术细节 ---------- */
#natc-app .natc-detail { padding: 0; }
#natc-app .natc-detail > summary {
	list-style: none;
	cursor: pointer;
	padding: 15px 22px;
	font-size: 12.5px;
	color: var(--natc-sub);
	user-select: none;
	outline: none;
	display: flex;
	align-items: center;
	gap: 8px;
}
#natc-app .natc-detail > summary::-webkit-details-marker { display: none; }
#natc-app .natc-detail > summary::before {
	content: "";
	width: 6px;
	height: 6px;
	border-right: 1.2px solid var(--natc-faint);
	border-bottom: 1.2px solid var(--natc-faint);
	transform: rotate(-45deg);
	transition: transform .2s;
	flex: none;
	margin-left: 2px;
}
#natc-app .natc-detail[open] > summary::before { transform: rotate(45deg); }
#natc-app .natc-detail[open] > summary { border-bottom: 1px solid var(--natc-line-soft); padding-bottom: 13px; }
#natc-app .natc-detail-body { padding: 18px 22px 22px; }

#natc-app .natc-sub-h {
	font-size: 11.5px;
	color: var(--natc-faint);
	margin: 20px 0 8px;
	letter-spacing: .02em;
}
#natc-app .natc-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
	gap: 8px;
	background: none;
	border: 0;
	border-radius: 0;
	overflow: visible;
	margin: 0;
	padding: 0;
}
#natc-app .natc-cell {
	background: var(--natc-cell);
	border: 1px solid var(--natc-line-soft);
	border-radius: 6px;
	padding: 9px 11px;
}
#natc-app .natc-cell dt {
	font-size: 10.5px;
	color: var(--natc-faint);
	margin: 0 0 2px;
	font-weight: 400;
}
#natc-app .natc-cell dd {
	margin: 0;
	font-size: 12.5px;
	font-family: var(--natc-mono);
	color: var(--natc-text);
	font-variant-numeric: tabular-nums;
	word-break: break-all;
}
#natc-app .natc-cell dd.plain { font-family: inherit; }

/* ---------- 表格 ---------- */
#natc-app .natc-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
#natc-app table {
	width: 100%;
	border-collapse: collapse;
	border: 0;
	background: none;
	margin: 0;
	font-size: 12.5px;
	box-shadow: none;
}
#natc-app table th {
	text-align: left;
	font-weight: 400;
	font-size: 11px;
	color: var(--natc-faint);
	padding: 0 10px 7px;
	border: 0;
	border-bottom: 1px solid var(--natc-line);
	white-space: nowrap;
	background: none;
	letter-spacing: .02em;
}
#natc-app table td {
	padding: 8px 10px;
	border: 0;
	border-bottom: 1px solid var(--natc-line-soft);
	vertical-align: middle;
	background: none;
	color: var(--natc-text);
}
#natc-app table tr:last-child td { border-bottom: 0; }
#natc-app table tbody tr:hover,
#natc-app table tbody tr:nth-child(even) { background: none; }
#natc-app table th:first-child,
#natc-app table td:first-child { padding-left: 0; }
#natc-app table th:last-child,
#natc-app table td:last-child { padding-right: 0; }
#natc-app td.natc-mono {
	font-family: var(--natc-mono);
	font-size: 12px;
	white-space: nowrap;
	font-variant-numeric: tabular-nums;
	color: var(--natc-sub);
}

#natc-app .natc-dot {
	display: inline-block;
	width: 5px;
	height: 5px;
	border-radius: 50%;
	margin-right: 6px;
	vertical-align: 1px;
}
#natc-app .natc-dot.ok { background: var(--natc-ok); }
#natc-app .natc-dot.bad { background: var(--natc-bad); }

#natc-app .natc-tag {
	display: inline-block;
	padding: 0 6px;
	border-radius: 4px;
	font-size: 11px;
	background: var(--natc-chip);
	color: var(--natc-sub);
	line-height: 1.8;
}
#natc-app .natc-tag.same { background: var(--natc-accent-soft); color: var(--natc-accent); }

#natc-app .natc-hint { font-size: 11.5px; color: var(--natc-faint); margin: 8px 0 0; }

#natc-app .natc-badge.natc-mini {
	height: 20px;
	padding: 0 7px;
	font-size: 11px;
	border-radius: 4px;
	font-weight: 500;
}

/* ---------- 折叠原始数据 ---------- */
#natc-app .natc-raw-wrap { margin: 18px 0 0; border-top: 1px solid var(--natc-line-soft); padding-top: 12px; }
#natc-app .natc-raw-wrap > summary {
	list-style: none;
	cursor: pointer;
	font-size: 11.5px;
	color: var(--natc-faint);
	outline: none;
}
#natc-app .natc-raw-wrap > summary::-webkit-details-marker { display: none; }
#natc-app .natc-raw-wrap > summary::before { content: "+ "; }
#natc-app .natc-raw-wrap[open] > summary::before { content: "− "; }
#natc-app pre {
	font-family: var(--natc-mono);
	font-size: 11px;
	line-height: 1.7;
	color: var(--natc-sub);
	background: var(--natc-sunken);
	border: 1px solid var(--natc-line-soft);
	border-radius: 6px;
	padding: 11px;
	overflow: auto;
	margin: 10px 0 0;
	white-space: pre-wrap;
	word-break: break-all;
}

/* ---------- 说明 ---------- */
#natc-app .natc-note {
	font-size: 12.5px;
	color: var(--natc-sub);
	line-height: 1.85;
	margin: 6px 0 0;
}
#natc-app .natc-note p { margin: 0 0 9px; }
#natc-app .natc-note p:last-child { margin: 0; }
#natc-app .natc-note b { color: var(--natc-text); font-weight: 600; }

#natc-app .natc-foot {
	margin: 16px 0 0;
	font-size: 11.5px;
	color: var(--natc-faint);
	line-height: 1.8;
}

#natc-app .natc-err {
	background: var(--natc-bad-soft);
	border: 1px solid var(--natc-bad-line);
	color: var(--natc-bad);
	padding: 12px 14px;
	border-radius: 8px;
	font-size: 12.5px;
	margin: 0 0 14px;
}

@media (max-width: 640px) {
	#natc-app .natc-panel { padding: 17px 16px; }
	#natc-app .natc-detail > summary { padding: 14px 16px; }
	#natc-app .natc-detail-body { padding: 16px; }
	#natc-app .natc-hero { padding: 18px 16px; }
	#natc-app .natc-hero-title { font-size: 17px; }
	#natc-app .natc-facts { gap: 10px 22px; }
	#natc-app .natc-use {
		grid-template-columns: 1fr auto;
		gap: 2px 10px;
	}
	#natc-app .natc-use-why { grid-column: 1 / -1; }
	#natc-app .natc-grid { grid-template-columns: 1fr 1fr; }
	#natc-app table { font-size: 12px; }
	#natc-app table th,
	#natc-app table td { padding-left: 6px; padding-right: 6px; }
}

/* ---------- 深色模式（主题用 body.dark） ---------- */
body.dark #natc-app {
	--natc-card: rgba(255, 255, 255, .038);
	--natc-cell: rgba(255, 255, 255, .05);
	--natc-chip: rgba(255, 255, 255, .085);
	--natc-sunken: rgba(0, 0, 0, .22);
	--natc-line: rgba(255, 255, 255, .13);
	--natc-line-soft: rgba(255, 255, 255, .07);
	--natc-text: #ece9e6;
	--natc-sub: #b6b0aa;
	--natc-faint: #968f89;
	--natc-accent: #7aa2ff;
	--natc-accent-soft: rgba(122, 162, 255, .16);
	--natc-ok: #6ee7a0;
	--natc-ok-soft: rgba(110, 231, 160, .12);
	--natc-ok-line: rgba(110, 231, 160, .3);
	--natc-warn: #f5c451;
	--natc-warn-soft: rgba(245, 196, 81, .12);
	--natc-warn-line: rgba(245, 196, 81, .3);
	--natc-bad: #f87171;
	--natc-bad-soft: rgba(248, 113, 113, .12);
	--natc-bad-line: rgba(248, 113, 113, .3);
}
body.dark #natc-app .natc-hero.natc-tone-ok { background: rgba(110, 231, 160, .05); border-color: rgba(110, 231, 160, .2); }
body.dark #natc-app .natc-hero.natc-tone-warn { background: rgba(245, 196, 81, .05); border-color: rgba(245, 196, 81, .2); }
body.dark #natc-app .natc-hero.natc-tone-bad { background: rgba(248, 113, 113, .05); border-color: rgba(248, 113, 113, .2); }
body.dark #natc-app .natc-hero.natc-tone-neutral { background: rgba(255, 255, 255, .03); }
body.dark #natc-app .natc-badge { color: var(--natc-sub); }
body.dark #natc-app .natc-badge.ok { color: var(--natc-ok); }
body.dark #natc-app .natc-badge.warn { color: var(--natc-warn); }
body.dark #natc-app .natc-badge.bad { color: var(--natc-bad); }