:root {
	--bg-deep: #020617;
	--accent: #22D3EE;
	--accent-purple: #A78BFA;
	--text: #F8FAFC;
	--text-muted: #94A3B8;
	--card-glass: rgba(15, 23, 42, 0.5);
}

/* ========== 第二屏：技术架构 ========== */
.section-container {
	position: relative;
	width: 100%;
	padding: 80px 0;
	background-color: #020617;
	overflow: hidden;
}

@media (min-width: 1024px) {
	.section-container {
		padding: 112px 0;
	}
}

.section-grid-bg {
	position: absolute;
	inset: 0;
	opacity: 0.25;
	pointer-events: none;
	background-image:
		linear-gradient(rgba(34, 211, 238, 0.025) 1px, transparent 1px),
		linear-gradient(90deg, rgba(34, 211, 238, 0.025) 1px, transparent 1px);
	background-size: 50px 50px;
}

.section-glow {
	position: absolute;
	top: -160px;
	right: -160px;
	width: 384px;
	height: 384px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(34, 211, 238, 0.06) 0%, transparent 70%);
	filter: blur(72px);
	pointer-events: none;
}

.section-inner {
	position: relative;
	z-index: 10;
	max-width: var(--content-width);
	margin: 0 auto;
	padding: 0 16px;
}

@media (min-width: 640px) {
	.section-inner {
		padding: 0 24px;
	}
}

@media (min-width: 1024px) {
	.section-inner {
		padding: 0 32px;
	}
}

.content-row {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 48px;
}

@media (min-width: 1024px) {
	.content-row {
		flex-direction: row;
		gap: 64px;
	}
}

.content-left {
	flex: 1 1 0%;
	width: 100%;
	max-width: 576px;
}

@media (min-width: 1024px) {
	.content-left {
		max-width: none;
	}
}

.overline {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 24px;
	letter-spacing: 0.25em;
	font-size: 12px;
	font-weight: 600;
	color: #22D3EE;
	text-transform: uppercase;
}

.overline-line {
	width: 24px;
	height: 1px;
	background: rgba(34, 211, 238, 0.5);
}

.headline {
	font-size: 30px;
	font-weight: 800;
	color: #fff;
	line-height: 1.25;
	letter-spacing: 0.025em;
	margin-bottom: 40px;
}

@media (min-width: 640px) {
	.headline {
		font-size: 36px;
	}
}

@media (min-width: 1024px) {
	.headline {
		font-size: 48px;
	}
}

.headline .hl-accent {
	color: #22D3EE;
}

.pillars-list {
	display: flex;
	flex-direction: column;
	gap: 24px;
	margin-bottom: 40px;
}

/* 技术要点卡片 */
.pillar-item {
	display: flex;
	align-items: flex-start;
	gap: 20px;
	padding: 20px;
	border-radius: 16px;
	border: 1px solid rgba(255, 255, 255, 0.05);
	background: rgba(255, 255, 255, 0.02);
	backdrop-filter: blur(4px);
	cursor: default;
	transition: all 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.pillar-item:hover {
	transform: translateX(6px);
}

.pillar-icon {
	flex-shrink: 0;
	width: 44px;
	height: 44px;
	border-radius: 12px;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.35s;
}

.pillar-icon.accent-bg {
	background: rgba(34, 211, 238, 0.1);
	border: 1px solid rgba(34, 211, 238, 0.2);
}

.pillar-icon.purple-bg {
	background: rgba(167, 139, 250, 0.1);
	border: 1px solid rgba(167, 139, 250, 0.2);
}

.pillar-item:hover .pillar-icon.accent-bg {
	background: rgba(34, 211, 238, 0.2);
	border-color: rgba(34, 211, 238, 0.4);
	box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
}

.pillar-item:hover .pillar-icon.purple-bg {
	background: rgba(167, 139, 250, 0.2);
	border-color: rgba(167, 139, 250, 0.4);
	box-shadow: 0 0 20px rgba(167, 139, 250, 0.2);
}

.pillar-icon-svg {
	width: 20px;
	height: 20px;
}

.pillar-icon-svg.accent-color {
	color: #22D3EE;
}

.pillar-icon-svg.purple-color {
	color: #A78BFA;
}

.pillar-title {
	font-size: 18px;
	font-weight: 600;
	color: #fff;
	margin-bottom: 8px;
	letter-spacing: 0.025em;
}

.pillar-desc {
	font-size: 14px;
	line-height: 1.625;
	color: rgba(255, 255, 255, 0.55);
	letter-spacing: 0.025em;
}

.pillar-desc .desc-accent {
	color: #22D3EE;
	font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
}

.pillar-desc .desc-purple {
	color: #A78BFA;
}

/* 对比视窗 */
.compare-row {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
}

.compare-overlay {
	position: absolute;
	top: 18px;
	right: 16px;
	z-index: 3;
	justify-content: flex-end;
	flex-wrap: nowrap;
	gap: 12px;
	max-width: calc(100% - 32px);
}

.compare-card {
	flex: 0 1 220px;
	min-width: 190px;
	max-width: 220px;
	padding: 10px 12px;
	border-radius: 14px;
	backdrop-filter: blur(4px);
}

.compare-card.blocked {
	border: 1px solid rgba(239, 68, 68, 0.2);
	background: rgba(239, 68, 68, 0.03);
}

.compare-card.verified {
	border: 1px solid rgba(16, 185, 129, 0.2);
	background: rgba(16, 185, 129, 0.03);
}

.compare-badge {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 8px;
}

.compare-badge-tag {
	padding: 2px 7px;
	font-size: 9px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	border-radius: 6px;
}

.compare-badge-tag.blocked {
	color: #F87171;
	background: rgba(239, 68, 68, 0.15);
	animation: pulseRed 2s ease-in-out infinite;
}

.compare-badge-tag.verified {
	color: #4ADE80;
	background: rgba(16, 185, 129, 0.15);
	animation: pulseGreen 2s ease-in-out infinite;
}

.compare-icon-row {
	display: flex;
	align-items: center;
	gap: 10px;
	min-width: 0;
}

.compare-icon-row>div {
	min-width: 0;
}

.compare-icon {
	width: 28px;
	height: 28px;
	flex-shrink: 0;
}

.compare-icon.blocked {
	color: rgba(248, 113, 113, 0.5);
}

.compare-icon.verified {
	color: rgba(74, 222, 128, 0.5);
}

.compare-title {
	font-size: 12px;
	font-weight: 600;
	line-height: 1.25;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.compare-title.blocked {
	color: rgba(248, 113, 113, 0.8);
}

.compare-title.verified {
	color: rgba(74, 222, 128, 0.8);
}

.compare-sub {
	font-size: 10px;
	line-height: 1.25;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.compare-sub.blocked {
	color: rgba(248, 113, 113, 0.4);
}

.compare-sub.verified {
	color: rgba(74, 222, 128, 0.4);
}

/* 右侧3D容器 */
.visual-col {
	flex: 1 1 0%;
	width: 100%;
	max-width: 576px;
}

@media (min-width: 1024px) {
	.visual-col {
		max-width: none;
	}
}

.visual-container {
	position: relative;
	width: 100%;
	height: 420px;
	border-radius: 16px;
	border: 1px solid rgba(34, 211, 238, 0.2);
	background: rgba(2, 6, 23, 0.6);
	backdrop-filter: blur(4px);
	overflow: hidden;
}

@media (min-width: 640px) {
	.visual-container {
		height: 500px;
	}
}

@media (min-width: 1024px) {
	.visual-container {
		height: 580px;
	}
}

@media (max-width: 767px) {
	.compare-overlay {
		top: 52px;
		right: 12px;
		left: 12px;
		gap: 12px;
		flex-wrap: wrap;
		max-width: none;
	}

	.compare-overlay .compare-card {
		flex: 1 1 calc(50% - 6px);
		min-width: 0;
		padding: 14px;
	}
}

.visual-tag-tl {
	position: absolute;
	top: 12px;
	left: 12px;
	font-size: 10px;
	color: rgba(255, 255, 255, 0.15);
	font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	pointer-events: none;
}

.visual-tag-br {
	position: absolute;
	bottom: 12px;
	right: 12px;
	font-size: 10px;
	color: rgba(255, 255, 255, 0.1);
	font-family: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
	pointer-events: none;
}

.visual-tag-br .live-count {
	color: rgba(34, 211, 238, 0.6);
}

/* 呼吸灯边框动画 */
@keyframes breathBorder {

	0%,
	100% {
		box-shadow: 0 0 12px rgba(34, 211, 238, 0.15), 0 0 30px rgba(34, 211, 238, 0.05), inset 0 0 12px rgba(34, 211, 238, 0.04);
		border-color: rgba(34, 211, 238, 0.2);
	}

	50% {
		box-shadow: 0 0 28px rgba(34, 211, 238, 0.35), 0 0 60px rgba(34, 211, 238, 0.12), inset 0 0 28px rgba(34, 211, 238, 0.1);
		border-color: rgba(34, 211, 238, 0.5);
	}
}

.breath-border {
	animation: breathBorder 3s ease-in-out infinite;
}

@keyframes pulseRed {

	0%,
	100% {
		box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
	}

	50% {
		box-shadow: 0 0 20px rgba(239, 68, 68, 0.7);
	}
}

@keyframes pulseGreen {

	0%,
	100% {
		box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
	}

	50% {
		box-shadow: 0 0 20px rgba(16, 185, 129, 0.7);
	}
}