/* ============================================================
   comcomAI 自动跟随机器人 · 概念先导页
   视觉母题：橙色跟随线贯穿全页；海报感大字；平面化处理
   ============================================================ */

:root {
	--bg-dark: #0A1E15;
	--bg-dark-2: #0D2519;
	--green: #1E7A52;
	--green-deep: #14503A;
	--orange: #F07C1F;
	--orange-soft: rgba(240, 124, 31, 0.16);
	--paper: #F5F1E8;
	--paper-2: #FBF9F4;
	--ink-dark: #0A1E15;
	--ink-light: #E9F2EC;
	--muted-light: #8FA89A;
	--muted-dark: #5C6E61;
	--hair-light: rgba(233, 242, 236, 0.14);
	--hair-dark: rgba(10, 30, 21, 0.16);
	--serif: "Noto Serif SC", "Songti SC", serif;
	--sans: "Noto Sans SC", "PingFang SC", sans-serif;
	--mono: "Space Grotesk", "Noto Sans SC", monospace;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	background: var(--bg-dark);
	color: var(--ink-light);
	font-family: var(--sans);
	font-size: 16px;
	line-height: 1.75;
	-webkit-font-smoothing: antialiased;
}

/* ---------- 通用 ---------- */
.wrap {
	max-width: 1120px;
	margin: 0 auto;
	padding: 0 32px;
}

.wrap-narrow {
	max-width: 800px;
}

.section {
	padding: 120px 0;
}

.section-light {
	background: var(--paper);
	color: var(--ink-dark);
}

.section-deep {
	background: var(--bg-dark-2);
}

.eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	font-family: var(--mono);
	font-size: 13px;
	letter-spacing: 0.22em;
	color: var(--orange);
	margin-bottom: 22px;
}

.eyebrow::before {
	content: "";
	width: 36px;
	height: 2px;
	background: var(--orange);
	flex: none;
}

.section-light .eyebrow {
	color: #C4600F;
}

.section-title {
	font-family: var(--serif);
	font-weight: 900;
	font-size: clamp(34px, 5vw, 56px);
	line-height: 1.2;
	letter-spacing: 0.02em;
	margin-bottom: 26px;
	text-wrap: balance;
}

.lead {
	max-width: 720px;
	font-size: clamp(16px, 1.4vw, 18px);
	color: var(--muted-light);
	margin-bottom: 64px;
}

.section-light .lead {
	color: var(--muted-dark);
}

/* ---------- 跟随线母题 ---------- */
.follow-line {
	fill: none;
	stroke: var(--orange);
	stroke-width: 2.6;
	stroke-linecap: round;
}

.flow {
	stroke-dasharray: 12 9;
	animation: flow 1.5s linear infinite;
}

.flow-slow {
	stroke: var(--orange-soft);
	stroke-width: 9;
	stroke-dasharray: 26 14;
	animation: flow 2.6s linear infinite;
}

@keyframes flow {
	to {
		stroke-dashoffset: -21;
	}
}

.evo-follower-box,
.follower rect {
	fill: none;
	stroke: var(--orange);
	stroke-width: 2;
	stroke-dasharray: 7 6;
	stroke-linecap: round;
}

/* ---------- 滚动进入 ---------- */
.reveal {
	opacity: 0;
	transform: translateY(26px);
	transition: opacity 0.9s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.in {
	opacity: 1;
	transform: none;
}

.draw {
	stroke-dasharray: 1;
	stroke-dashoffset: 1;
	transition: stroke-dashoffset 1.8s ease 0.35s;
}

.in .draw,
.draw.in {
	stroke-dashoffset: 0;
}

/* ---------- 导航 ---------- */
.nav {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	z-index: 10;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 26px 40px;
}

.nav-brand {
	font-family: var(--mono);
	font-weight: 700;
	font-size: 20px;
	letter-spacing: 0.04em;
	color: var(--ink-light);
	text-decoration: none;
	display: flex;
	align-items: baseline;
	gap: 10px;
}

.nav-brand-sub {
	font-family: var(--sans);
	font-weight: 400;
	font-size: 12px;
	letter-spacing: 0.28em;
	color: var(--muted-light);
}

.nav-links {
	display: flex;
	gap: 30px;
}

.nav-links a {
	font-size: 14px;
	color: var(--muted-light);
	text-decoration: none;
	letter-spacing: 0.08em;
	transition: color 0.25s;
}

.nav-links a:hover {
	color: var(--ink-light);
}

.nav-links a.nav-cta {
	color: var(--orange);
	border: 1px solid rgba(240, 124, 31, 0.5);
	border-radius: 999px;
	padding: 6px 18px;
}

.nav-links a.nav-cta:hover {
	background: var(--orange-soft);
}

.text-orange-600 {
	color: rgba(240, 124, 31, 0.8);
}

/* ---------- 首屏 ---------- */
.hero {
	min-height: 100svh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	position: relative;
	padding: 110px 32px 40px;
}

.hero-inner {
	max-width: 1120px;
	margin: 0 auto;
	width: 100%;
}

.hero-eyebrow {
	font-family: var(--mono);
	font-size: 13px;
	letter-spacing: 0.26em;
	color: var(--muted-light);
	margin-bottom: 18px;
}

.hero-title {
	font-family: var(--serif);
	font-weight: 900;
	font-size: clamp(64px, 11vw, 156px);
	line-height: 1.05;
	letter-spacing: 0.01em;
	color: #F4F8F4;
}

.dot-orange {
	color: var(--orange);
}

.hero-sub {
	margin-top: 22px;
	font-size: clamp(15px, 1.4vw, 18px);
	letter-spacing: 0.14em;
	color: var(--muted-light);
}

.hero-status {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	margin-top: 26px;
	font-size: 13px;
	letter-spacing: 0.06em;
	color: var(--ink-light);
	border: 1px solid var(--hair-light);
	border-radius: 999px;
	padding: 7px 16px;
}

.pulse-dot {
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: var(--orange);
	flex: none;
	animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {

	0%,
	100% {
		box-shadow: 0 0 0 0 rgba(240, 124, 31, 0.45);
	}

	50% {
		box-shadow: 0 0 0 7px rgba(240, 124, 31, 0);
	}
}

.hero-scene {
	margin-top: 8px;
}

.hero-scene svg {
	width: 100%;
	max-width: 980px;
	height: auto;
	display: block;
	margin: 0 auto;
}

.ground {
	stroke: var(--hair-light);
	stroke-width: 1.6;
}

.sense-arcs path {
	stroke-dasharray: 4 7;
}

.annot text {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.12em;
	fill: var(--muted-light);
}

.annot text:last-child {
	font-size: 11px;
	fill: rgba(143, 168, 154, 0.75);
}

.scroll-cue {
	position: absolute;
	bottom: 28px;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	justify-content: center;
}

.scroll-line {
	width: 1.5px;
	height: 44px;
	background: linear-gradient(to bottom, transparent, var(--orange));
	animation: cue 1.8s ease-in-out infinite;
	transform-origin: top;
}

@keyframes cue {
	0% {
		transform: scaleY(0);
	}

	55% {
		transform: scaleY(1);
	}

	100% {
		transform: scaleY(1);
		opacity: 0;
	}
}

/* ---------- 概念段（浅底） ---------- */
.evo {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 28px;
	margin-bottom: 88px;
}

.evo-stage {
	border: 1px solid var(--hair-dark);
	border-radius: 14px;
	padding: 18px 14px 16px;
	background: rgba(255, 255, 255, 0.42);
}

.evo-stage svg {
	width: 100%;
	height: auto;
	display: block;
}

.evo-ground {
	stroke: var(--hair-dark);
	stroke-width: 1.4;
}

.evo-link {
	stroke: rgba(10, 30, 21, 0.3);
	stroke-width: 1.6;
}

.evo-leader {
	fill: var(--ink-dark);
}

.evo-follower {
	fill: none;
	stroke: var(--ink-dark);
	stroke-width: 2;
}

.evo-future {
	border-color: rgba(240, 124, 31, 0.5);
	background: rgba(240, 124, 31, 0.05);
}

.evo-cap {
	margin-top: 10px;
	display: flex;
	flex-direction: column;
	gap: 2px;
	text-align: center;
}

.evo-cap b {
	font-family: var(--serif);
	font-size: 17px;
	font-weight: 700;
}

.evo-cap span {
	font-size: 12.5px;
	color: var(--muted-dark);
	letter-spacing: 0.06em;
}

.key-message {
	border-top: 1px solid var(--hair-dark);
	padding-top: 64px;
	text-align: center;
}

.key-line {
	font-family: var(--serif);
	font-weight: 900;
	font-size: clamp(36px, 6vw, 72px);
	line-height: 1.3;
	color: var(--ink-dark);
}

.km-mark {
	color: transparent;
	-webkit-text-stroke: 2px #C4600F;
	padding: 0 0.06em;
}

/* ---------- 信任三步 ---------- */
.steps {
	position: relative;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 44px;
}

.steps::before {
	content: "";
	position: absolute;
	top: 25px;
	left: 6%;
	right: 6%;
	height: 2px;
	background: linear-gradient(to right, transparent, var(--orange) 12%, var(--orange) 88%, transparent);
	opacity: 0.85;
}

.step-node {
	width: 50px;
	height: 50px;
	border-radius: 50%;
	background: var(--bg-dark);
	border: 2px solid var(--orange);
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 26px;
	position: relative;
	z-index: 1;
}

.step-node span {
	font-family: var(--mono);
	font-weight: 700;
	font-size: 15px;
	color: var(--orange);
	letter-spacing: 0.04em;
}

.step-title {
	font-family: var(--serif);
	font-weight: 900;
	font-size: 30px;
	margin-bottom: 12px;
}

.step-copy {
	font-size: 15.5px;
	color: var(--muted-light);
	margin-bottom: 14px;
}

.step-cap {
	display: inline-block;
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.12em;
	color: #79C4A1;
	border: 1px solid rgba(30, 122, 82, 0.7);
	border-radius: 999px;
	padding: 4px 14px;
	margin-bottom: 26px;
}

.step-viz {
	border: 1px solid var(--hair-light);
	border-radius: 12px;
	background: rgba(233, 242, 236, 0.03);
	padding: 10px;
}

.step-viz svg {
	width: 100%;
	height: auto;
	display: block;
}

.crowd circle {
	fill: rgba(233, 242, 236, 0.22);
}

.crowd-dot-strong {
	fill: rgba(233, 242, 236, 0.4);
}

.track-ring {
	fill: none;
	stroke: var(--orange);
	stroke-width: 1.6;
	stroke-dasharray: 5 6;
	transform-origin: 160px 75px;
	animation: ringPulse 2.6s ease-in-out infinite;
}

@keyframes ringPulse {

	0%,
	100% {
		transform: scale(1);
		opacity: 0.9;
	}

	50% {
		transform: scale(1.22);
		opacity: 0.45;
	}
}

.tick {
	stroke: var(--orange);
	stroke-width: 1.8;
	stroke-linecap: round;
}

.curve-lead {
	fill: none;
	stroke: var(--ink-light);
	stroke-width: 2.6;
	stroke-linecap: round;
	opacity: 0.9;
}

.curve-follow {
	fill: none;
	stroke: var(--orange);
	stroke-width: 2.6;
	stroke-linecap: round;
}

.gap-line {
	stroke: rgba(143, 168, 154, 0.5);
	stroke-width: 1.2;
	stroke-dasharray: 3 4;
}

.viz-text {
	font-family: var(--mono);
	font-size: 11px;
	fill: var(--muted-light);
	letter-spacing: 0.1em;
}

.viz-text-orange {
	fill: var(--orange);
}

.viz-lead {
	fill: var(--ink-light);
}

.buffer-zone {
	fill: rgba(240, 124, 31, 0.08);
	stroke: rgba(240, 124, 31, 0.5);
	stroke-width: 1.3;
	stroke-dasharray: 5 5;
}

/* ---------- 平台架构 ---------- */
.arch {
	margin-top: 8px;
}

.arch-panels {
	display: grid;
	grid-template-columns: 1.05fr 1.05fr 0.9fr;
	gap: 22px;
	margin-bottom: 46px;
}

.arch-panel {
	position: relative;
	border: 1px solid rgba(233, 242, 236, 0.2);
	border-radius: 14px;
	padding: 22px 22px 24px;
	background: rgba(233, 242, 236, 0.025);
}

.arch-panel::after {
	content: "";
	position: absolute;
	left: 50%;
	bottom: -46px;
	width: 1px;
	height: 46px;
	background: repeating-linear-gradient(to bottom, rgba(233, 242, 236, 0.32) 0 4px, transparent 4px 10px);
}

.arch-kicker {
	font-family: var(--mono);
	font-size: 11.5px;
	letter-spacing: 0.2em;
	color: var(--muted-light);
}

.arch-panel h3 {
	font-family: var(--serif);
	font-size: 24px;
	font-weight: 700;
	margin: 4px 0 20px;
}

.arch-forms {
	display: flex;
	flex-wrap: wrap;
	gap: 18px;
}

.arch-form {
	display: flex;
	align-items: center;
	gap: 10px;
	min-width: 0;
}

.arch-form em {
	font-style: normal;
	font-size: 13.5px;
	color: #C9DAD0;
	letter-spacing: 0.02em;
	line-height: 1.4;
}

.glyph {
	width: 40px;
	height: 40px;
	flex: none;
	display: block;
}

.glyph svg {
	width: 100%;
	height: 100%;
	fill: none;
	stroke: var(--ink-light);
	stroke-width: 2;
	stroke-linecap: round;
}

.glyph-dash {
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px dashed rgba(233, 242, 236, 0.35);
	border-radius: 50%;
	font-family: var(--mono);
	font-size: 18px;
	color: rgba(233, 242, 236, 0.5);
}

.arch-panel-future {
	border-style: dashed;
	background: transparent;
}

.arch-panel-future .arch-form em {
	color: var(--muted-light);
}

.arch-base {
	text-align: center;
}

.arch-base-bar {
	height: 10px;
	border-radius: 5px;
	background: var(--orange);
}

.arch-base-row {
	display: flex;
	justify-content: space-around;
	margin-top: 12px;
	font-family: var(--serif);
	font-size: 19px;
	font-weight: 700;
	letter-spacing: 0.18em;
}

.arch-base-name {
	margin-top: 10px;
	font-family: var(--mono);
	font-size: 13px;
	letter-spacing: 0.28em;
	color: var(--muted-light);
}

.arch-note {
	margin-top: 22px;
	text-align: center;
	font-size: 12px;
	letter-spacing: 0.14em;
	color: rgba(143, 168, 154, 0.65);
}

/* ---------- 场景区块 ---------- */
.scenario {
	margin-bottom: 96px;
}

#luggage {
	margin-bottom: 0;
}

.scenario-head {
	display: grid;
	grid-template-columns: 88px 1fr auto;
	align-items: start;
	gap: 24px;
	padding-bottom: 26px;
	border-bottom: 1px solid var(--hair-dark);
	margin-bottom: 34px;
}

.scenario-no {
	font-family: var(--mono);
	font-size: 52px;
	font-weight: 500;
	line-height: 1;
	color: transparent;
	-webkit-text-stroke: 1.6px rgba(10, 30, 21, 0.4);
}

.scenario-title {
	font-family: var(--serif);
	font-weight: 900;
	font-size: clamp(26px, 3.4vw, 38px);
	line-height: 1.3;
	margin-bottom: 10px;
}

.scenario-story {
	max-width: 660px;
	font-size: 15px;
	color: var(--muted-dark);
	line-height: 1.8;
}

.chip {
	flex: none;
	font-family: var(--mono);
	font-size: 11.5px;
	letter-spacing: 0.1em;
	border-radius: 999px;
	padding: 4px 12px;
	white-space: nowrap;
}

.chip-solid {
	background: var(--green-deep);
	color: var(--paper);
}

.chip-outline {
	border: 1px dashed rgba(10, 30, 21, 0.4);
	color: var(--muted-dark);
}

/* 产品形态卡 */
.forms {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 26px;
	align-items: stretch;
}

.product {
	background: var(--paper-2);
	border: 1px solid var(--hair-dark);
	border-radius: 16px;
	padding: 28px 28px 24px;
	display: flex;
	flex-direction: column;
	height: 100%;
}

.product-pending {
	background: transparent;
	border-style: dashed;
}

.product-head {
	display: flex;
	gap: 16px;
	align-items: flex-start;
	margin-bottom: 24px;
}

.product-glyph {
	width: 54px;
	height: 54px;
	flex: none;
	display: block;
}

.product-glyph svg {
	width: 100%;
	height: 100%;
	fill: none;
	stroke: var(--green-deep);
	stroke-width: 2.2;
	stroke-linecap: round;
}

.product-kicker {
	font-family: var(--mono);
	font-size: 11.5px;
	letter-spacing: 0.16em;
	color: #A3612A;
}

.product-head h4 {
	font-family: var(--serif);
	font-weight: 900;
	font-size: 25px;
	line-height: 1.35;
	margin: 2px 0 4px;
}

.product-line {
	font-size: 14px;
	color: var(--muted-dark);
	line-height: 1.7;
}

.features {
	list-style: none;
	display: grid;
	gap: 14px;
	margin-bottom: 26px;
}

.features li {
	padding-left: 16px;
	border-left: 2px solid rgba(240, 124, 31, 0.55);
}

.features b {
	display: block;
	font-size: 14.5px;
	font-weight: 700;
	color: var(--ink-dark);
	margin-bottom: 2px;
}

.features span {
	font-size: 13.5px;
	line-height: 1.7;
	color: #41544A;
}

/* 参数网格 */
.params {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1px;
	background: var(--hair-dark);
	border-top: 1px solid var(--hair-dark);
	border-bottom: 1px solid var(--hair-dark);
	margin-top: auto;
}

.param {
	background: var(--paper-2);
	padding: 14px 12px 12px;
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.param b {
	font-family: var(--mono);
	font-weight: 500;
	font-size: 24px;
	line-height: 1.1;
	color: var(--green-deep);
	letter-spacing: -0.01em;
	font-variant-numeric: tabular-nums;
}

.param b em {
	font-style: normal;
	font-family: var(--mono);
	font-size: 12.5px;
	letter-spacing: 0.02em;
	color: var(--orange);
	margin-left: 2px;
}

.param b.param-word {
	font-size: 19px;
	letter-spacing: 0;
}

.param span {
	font-size: 11.5px;
	color: var(--muted-dark);
	letter-spacing: 0.04em;
	line-height: 1.5;
}

/* 待发布说明 */
.pending-note {
	margin-top: auto;
	border: 1px dashed rgba(10, 30, 21, 0.3);
	border-radius: 12px;
	padding: 18px;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 10px;
}

.pending-note p {
	font-size: 13.5px;
	color: var(--muted-dark);
	line-height: 1.7;
}

.pending-note b {
	color: var(--ink-dark);
}

/* 可折叠完整参数 */
.spec-more {
	margin-top: 16px;
}

.spec-more summary {
	cursor: pointer;
	list-style: none;
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-family: var(--mono);
	font-size: 12.5px;
	letter-spacing: 0.12em;
	color: #A3612A;
	padding: 4px 0;
}

.spec-more summary::-webkit-details-marker {
	display: none;
}

.spec-more summary::after {
	content: "+";
	width: 18px;
	height: 18px;
	border: 1px solid rgba(163, 97, 42, 0.5);
	border-radius: 50%;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 13px;
	line-height: 1;
}

.spec-more[open] summary::after {
	content: "−";
}

.spec-more dl {
	margin-top: 12px;
	border-top: 1px solid var(--hair-dark);
}

.spec-more dl>div {
	display: grid;
	grid-template-columns: 126px 1fr;
	gap: 14px;
	padding: 8px 0;
	border-bottom: 1px solid rgba(10, 30, 21, 0.08);
}

.spec-more dt {
	font-size: 12.5px;
	color: var(--muted-dark);
}

.spec-more dd {
	font-size: 13px;
	color: #2A3B31;
}

/* 路线图幽灵卡片 */
.roadmap-head {
	display: flex;
	align-items: center;
	gap: 20px;
	margin: 84px 0 30px;
}

.roadmap-head p {
	font-family: var(--mono);
	font-size: 13px;
	letter-spacing: 0.22em;
	color: var(--muted-dark);
	white-space: nowrap;
}

.roadmap-line {
	flex: 1;
	height: 1.5px;
	background: repeating-linear-gradient(to right, rgba(10, 30, 21, 0.3) 0 8px, transparent 8px 16px);
}

.ghost-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 26px;
}

.ghost-card {
	border: 1.5px dashed rgba(10, 30, 21, 0.32);
	border-radius: 16px;
	padding: 26px 26px 24px;
}

.ghost-top {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 16px;
}

.ghost-glyph {
	width: 44px;
	height: 44px;
	display: block;
	opacity: 0.45;
}

.ghost-glyph svg {
	width: 100%;
	height: 100%;
}

.ghost-glyph path {
	fill: none;
	stroke: #0A1E15;
	stroke-width: 2;
}

.ghost-card h3 {
	font-family: var(--serif);
	font-weight: 700;
	font-size: 20px;
	color: rgba(10, 30, 21, 0.72);
	margin-bottom: 8px;
}

.ghost-card p {
	font-size: 14.5px;
	color: var(--muted-dark);
	line-height: 1.7;
}

/* ---------- CTA 与页脚 ---------- */
.section-cta {
	padding-bottom: 0;
}

.section-cta .section-title {
	margin-bottom: 24px;
}

.cta-row {
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
	margin-bottom: 18px;
}

.btn {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-size: 15.5px;
	font-weight: 500;
	letter-spacing: 0.06em;
	text-decoration: none;
	border-radius: 999px;
	padding: 13px 34px;
	transition: transform 0.25s, background 0.25s, border-color 0.25s;
}

.btn-primary {
	background: var(--orange);
	color: #14100A;
	font-weight: 700;
}

.btn-primary:hover {
	transform: translateY(-2px);
	background: #FF8B2E;
}

.btn-ghost {
	border: 1px solid rgba(233, 242, 236, 0.35);
	color: var(--ink-light);
}

.btn-ghost:hover {
	border-color: var(--orange);
	color: var(--orange);
}

.cta-note {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.18em;
	color: rgba(143, 168, 154, 0.7);
}

.closing-line {
	margin-top: 84px;
}

.closing-line svg {
	width: 100%;
	height: 110px;
	display: block;
}

.footer {
	border-top: 1px solid var(--hair-light);
	padding: 34px 0 40px;
}

.footer-inner {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 32px;
	flex-wrap: wrap;
}

.footer-brand {
	font-family: var(--mono);
	font-weight: 700;
	font-size: 18px;
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.footer-brand span {
	font-family: var(--sans);
	font-weight: 400;
	font-size: 12.5px;
	color: var(--muted-light);
	letter-spacing: 0.1em;
}

.footer-note {
	max-width: 470px;
	font-size: 12.5px;
	color: rgba(143, 168, 154, 0.75);
	line-height: 1.8;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
	.arch-panels {
		grid-template-columns: 1fr 1fr;
	}

	.arch-panel-future {
		grid-column: 1 / -1;
	}

	.arch-panel-future::after {
		display: none;
	}

	.forms {
		grid-template-columns: 1fr;
	}

	.scenario-head {
		grid-template-columns: 64px 1fr;
	}

	.scenario-head .chip {
		grid-column: 2;
		justify-self: start;
	}

	.scenario-no {
		font-size: 44px;
	}
}

@media (max-width: 960px) {
	.nav {
		padding: 20px 24px;
	}

	.nav-links {
		display: none;
	}

	.section {
		padding: 88px 0;
	}

	.steps {
		grid-template-columns: 1fr;
		gap: 48px;
	}

	.steps::before {
		top: 6px;
		bottom: 6px;
		left: 25px;
		right: auto;
		width: 2px;
		height: auto;
		background: linear-gradient(to bottom, transparent, var(--orange) 10%, var(--orange) 90%, transparent);
	}

	.evo {
		grid-template-columns: 1fr;
	}

	.ghost-grid {
		grid-template-columns: 1fr;
	}

	.arch-panels {
		grid-template-columns: 1fr;
	}

	.arch-panel::after {
		display: none;
	}

	.arch-base-row {
		font-size: 16px;
		letter-spacing: 0.1em;
	}
}

@media (max-width: 640px) {
	.wrap {
		padding: 0 20px;
	}

	.section {
		padding: 72px 0;
	}

	.hero {
		padding: 96px 20px 40px;
	}

	.hero-status {
		font-size: 12px;
		border-radius: 12px;
		padding: 8px 14px;
		line-height: 1.6;
	}

	.scenario {
		margin-bottom: 72px;
	}

	.scenario-head {
		grid-template-columns: 1fr;
		gap: 10px;
	}

	.scenario-head .chip {
		grid-column: 1;
	}

	.scenario-no {
		font-size: 36px;
	}

	.product {
		padding: 22px 20px 20px;
	}

	.params {
		grid-template-columns: repeat(2, 1fr);
	}

	.param b {
		font-size: 21px;
	}

	.product-head h4 {
		font-size: 22px;
	}

	.roadmap-head p {
		font-size: 12px;
	}

	.cta-row .btn {
		width: 100%;
		justify-content: center;
	}

	.closing-line svg {
		height: 64px;
	}

	.spec-more dl>div {
		grid-template-columns: 104px 1fr;
		gap: 10px;
	}
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {

	.flow,
	.flow-slow,
	.track-ring,
	.pulse-dot,
	.scroll-line {
		animation: none;
	}

	.reveal {
		transition: none;
		opacity: 1;
		transform: none;
	}

	.draw {
		stroke-dashoffset: 0;
		transition: none;
	}

	html {
		scroll-behavior: auto;
	}
}