/* AI 使用教程 — page polish on shared ag-* docs layout; brand #2a4365 */

.am-page {
	--am-brand: #2a4365;
	--am-brand-deep: #1a365d;
	--am-ink: #2d3748;
	--am-muted: #4a5568;
	--am-line: #e2e8f0;
	--am-soft: #f0f4f8;
	--am-surface: #ffffff;
}

/* —— Hero —— */
.am-page .am-hero {
	position: relative;
	overflow: hidden;
	padding: 52px 0 48px;
	border-bottom: 0;
	background:
		radial-gradient(ellipse 80% 60% at 12% 0%, rgba(42, 67, 101, 0.10) 0%, transparent 55%),
		radial-gradient(ellipse 55% 50% at 92% 20%, rgba(26, 54, 93, 0.07) 0%, transparent 50%),
		linear-gradient(165deg, #e8eef5 0%, #f4f7fa 42%, #fafbfc 100%);
}

.am-hero-bg {
	position: absolute;
	inset: 0;
	pointer-events: none;
	background-image:
		linear-gradient(rgba(42, 67, 101, 0.035) 1px, transparent 1px),
		linear-gradient(90deg, rgba(42, 67, 101, 0.035) 1px, transparent 1px);
	background-size: 48px 48px;
	mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, transparent 88%);
	-webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, transparent 88%);
	animation: am-grid-drift 28s linear infinite;
}

@keyframes am-grid-drift {
	from { background-position: 0 0, 0 0; }
	to { background-position: 48px 24px, 24px 48px; }
}

@media (prefers-reduced-motion: reduce) {
	.am-hero-bg {
		animation: none;
	}
	.am-reveal {
		opacity: 1 !important;
		transform: none !important;
		transition: none !important;
	}
}

.am-hero-inner {
	position: relative;
	z-index: 1;
}

.am-kicker {
	margin: 0 0 10px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--am-brand);
	opacity: 0.85;
}

.am-page .am-hero h1 {
	margin: 0 0 14px;
	font-size: clamp(32px, 4.2vw, 44px);
	font-weight: 800;
	letter-spacing: -0.03em;
	color: var(--am-brand-deep);
	line-height: 1.15;
}

.am-page .am-hero .ag-lead {
	max-width: 40em;
	font-size: 17px;
	line-height: 1.75;
	color: var(--am-muted);
	margin-bottom: 22px;
}

.am-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.am-page .am-hero .ag-btn {
	min-height: 44px;
	padding: 0 20px;
	border-radius: 8px;
	transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.am-page .am-hero .ag-btn:hover {
	transform: translateY(-1px);
}

.am-page .am-hero .ag-btn--ghost {
	background: rgba(255, 255, 255, 0.72);
	backdrop-filter: blur(4px);
}

/* —— Main rhythm —— */
.am-page .am-main {
	padding: 48px 0 88px;
	background:
		linear-gradient(180deg, #f7fafc 0%, #ffffff 120px);
}

.am-page .container.ag-layout--wide {
	max-width: 1180px;
}

.am-page .ag-ov-lead h2,
.am-page .ag-ov-scenes h2,
.am-page .ag-ov-activate h2,
.am-page .ag-block h2 {
	letter-spacing: -0.02em;
}

.am-page .ag-ov-lead {
	padding-bottom: 40px;
	margin-bottom: 40px;
}

.am-page .ag-scene-item {
	border-radius: 0 10px 10px 0;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.am-page .ag-scene-item:hover {
	transform: translateY(-2px);
	box-shadow: 0 10px 28px rgba(26, 54, 93, 0.06);
}

.am-page .ag-step-n {
	background: var(--am-brand);
	color: #fff;
}

/* —— Tabs —— */
.am-page .ag-page-tablist {
	border-radius: 12px 12px 0 0;
	border: 1px solid var(--am-line);
	border-bottom: 1px solid var(--am-line);
	background: rgba(255, 255, 255, 0.94);
	padding: 4px 4px 0;
	gap: 4px;
	box-shadow: 0 8px 24px rgba(26, 54, 93, 0.04);
}

.am-page .ag-page-tablist button {
	border-radius: 8px 8px 0 0;
	padding: 14px 24px;
	transition: color 0.15s ease, background 0.15s ease;
}

.am-page .ag-page-tablist button.is-on {
	background: var(--am-soft);
}

.am-page .ag-page-panels {
	border: 1px solid var(--am-line);
	border-top: 0;
	border-radius: 0 0 12px 12px;
	padding: 28px 28px 12px;
	background: var(--am-surface);
}

.am-page .ag-page-panel.is-on {
	animation: am-panel-in 0.28s ease;
}

@keyframes am-panel-in {
	from { opacity: 0; transform: translateY(6px); }
	to { opacity: 1; transform: translateY(0); }
}

/* —— Content panels —— */
.am-panel {
	padding: 18px 18px 16px;
	border: 1px solid var(--am-line);
	border-radius: 10px;
	background: linear-gradient(180deg, #fafcfd 0%, #fff 100%);
}

.am-ops-list h3,
.am-panel h3 {
	margin: 0 0 8px;
	font-size: 15px;
	font-weight: 700;
	color: var(--am-brand);
}

.am-panel p {
	margin: 0 0 8px;
	font-size: 14px;
	line-height: 1.7;
	color: var(--am-muted);
}

.am-ops-list {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 14px;
}

.am-ops-list .am-panel p {
	margin: 0;
}

.am-page .ag-kv {
	border-radius: 12px;
	box-shadow: 0 1px 0 rgba(26, 54, 93, 0.04);
}

.am-page .ag-code {
	border-radius: 0 0 12px 12px;
}

.am-page .ag-foot-cta {
	margin-top: 36px;
	padding: 28px;
	border-radius: 14px;
	border: 1px solid var(--am-line);
	background:
		radial-gradient(ellipse 70% 80% at 0% 50%, rgba(42, 67, 101, 0.06) 0%, transparent 60%),
		linear-gradient(90deg, #f7fafc, #fff);
	gap: 12px;
}

/* —— Scroll reveal —— */
.am-reveal {
	opacity: 0;
	transform: translateY(14px);
	transition: opacity 0.45s ease, transform 0.45s ease;
}

.am-reveal.is-in {
	opacity: 1;
	transform: none;
}

@media (max-width: 767px) {
	.am-page .am-hero {
		padding: 36px 0 32px;
	}

	.am-page .am-hero h1 {
		font-size: 28px;
	}

	.am-ops-list {
		grid-template-columns: 1fr;
	}

	.am-page .ag-page-panels {
		padding: 20px 16px 8px;
	}

	.am-page .ag-page-tablist button {
		flex: 1;
		padding: 12px 10px;
		font-size: 14px;
		text-align: center;
	}

	.am-page .ag-tabs button {
		padding: 8px 10px;
		font-size: 13px;
	}

	.am-page .ag-foot-cta {
		padding: 20px 16px;
	}
}