/* ==========================================================================
   QuickQ 官网 单页站点样式（浅色 teal / amber 体系）
   ========================================================================== */

:root {
	--qq2-teal: #0d9488;
	--qq2-teal-dark: #0f766e;
	--qq2-teal-deep: #062e2b;
	--qq2-teal-soft: #e8f7f4;
	--qq2-mint: #f4fbfa;
	--qq2-amber: #f59e0b;
	--qq2-amber-dark: #b45309;
	--qq2-ink: #08201e;
	--qq2-body: #4c6160;
	--qq2-muted: #6d8382;
	--qq2-line: #dcebe8;
	--qq2-line-strong: #c7e0dc;
	--qq2-white: #fff;
	--qq2-grad: linear-gradient(120deg, #14b8a6 0%, #0d9488 52%, #0f766e 100%);
	--qq2-shadow-sm: 0 2px 10px rgba(6, 46, 43, .06);
	--qq2-shadow: 0 18px 44px rgba(6, 46, 43, .1);
	--qq2-shadow-lg: 0 30px 70px rgba(6, 46, 43, .16);
	--qq2-radius: 20px;
	--qq2-radius-lg: 30px;
	--qq2-wrap: 1180px;
	--qq2-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
		"Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", Arial, sans-serif;
}

html {
	scroll-behavior: smooth;
}

body.qq2-body {
	margin: 0;
	background: #fff;
	color: var(--qq2-body);
	font-family: var(--qq2-font);
	font-size: 16px;
	line-height: 1.8;
	-webkit-font-smoothing: antialiased;
}

.qq2-body *,
.qq2-body *::before,
.qq2-body *::after {
	box-sizing: border-box;
}

.qq2-body img {
	max-width: 100%;
	height: auto;
	display: block;
}

.qq2-body p {
	margin: 0;
}

.qq2-body h1,
.qq2-body h2,
.qq2-body h3,
.qq2-body h4 {
	margin: 0;
	color: var(--qq2-ink);
	font-family: var(--qq2-font);
	font-weight: 800;
	line-height: 1.25;
	letter-spacing: -.01em;
}

.qq2-body ul,
.qq2-body ol {
	margin: 0;
	padding: 0;
	list-style: none;
}

.qq2-body a {
	text-decoration: none;
}

.qq2-main {
	display: block;
}

.qq2-wrap {
	width: 100%;
	max-width: var(--qq2-wrap);
	margin: 0 auto;
	padding: 0 22px;
}

/* ---------- 按钮 ---------- */

.qq2-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 9px;
	min-height: 52px;
	padding: 0 28px;
	border: 0;
	border-radius: 14px;
	background-image: var(--qq2-grad);
	color: #fff;
	font-family: var(--qq2-font);
	font-size: 15.5px;
	font-weight: 700;
	line-height: 1;
	box-shadow: 0 12px 26px rgba(13, 148, 136, .3);
	cursor: pointer;
	transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
}

.qq2-btn:hover {
	color: #fff;
	transform: translateY(-2px);
	box-shadow: 0 18px 34px rgba(13, 148, 136, .38);
}

.qq2-btn svg {
	width: 18px;
	height: 18px;
	fill: none;
	stroke: currentColor;
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.qq2-btn--amber {
	background-image: linear-gradient(120deg, #fbbf24 0%, #f59e0b 100%);
	color: #3d2606;
	box-shadow: 0 12px 26px rgba(245, 158, 11, .32);
}

.qq2-btn--amber:hover {
	color: #3d2606;
	box-shadow: 0 18px 34px rgba(245, 158, 11, .42);
}

.qq2-btn--outline {
	background-image: none;
	background-color: #fff;
	border: 1.5px solid var(--qq2-line-strong);
	color: var(--qq2-teal-dark);
	box-shadow: none;
}

.qq2-btn--outline:hover {
	background-color: var(--qq2-mint);
	color: var(--qq2-teal-dark);
	border-color: var(--qq2-teal);
	box-shadow: none;
}

.qq2-btn--ghost {
	background-image: none;
	background-color: rgba(255, 255, 255, .16);
	border: 1.5px solid rgba(255, 255, 255, .5);
	color: #fff;
	box-shadow: none;
}

.qq2-btn--ghost:hover {
	background-color: rgba(255, 255, 255, .26);
	box-shadow: none;
}

.qq2-btn--sm {
	min-height: 42px;
	padding: 0 20px;
	font-size: 14.5px;
	border-radius: 12px;
}

/* ---------- 头部 ---------- */

.qq2-header {
	position: sticky;
	top: 0;
	z-index: 99;
	background: rgba(255, 255, 255, .94);
	backdrop-filter: saturate(180%) blur(12px);
	-webkit-backdrop-filter: saturate(180%) blur(12px);
	border-bottom: 1px solid var(--qq2-line);
	transition: box-shadow .25s ease;
}

.qq2-header.is-stuck {
	box-shadow: 0 12px 30px rgba(6, 46, 43, .08);
}

.qq2-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	width: 100%;
	max-width: var(--qq2-wrap);
	min-height: 74px;
	margin: 0 auto;
	padding: 0 22px;
}

.qq2-logo {
	display: inline-flex;
	align-items: center;
	gap: 11px;
}

.qq2-logo__mark {
	display: grid;
	place-items: center;
	width: 42px;
	height: 42px;
	border-radius: 13px;
	background-image: var(--qq2-grad);
	color: #fff;
	font-size: 21px;
	font-weight: 800;
	box-shadow: 0 10px 22px rgba(13, 148, 136, .3);
}

.qq2-logo__text {
	display: flex;
	flex-direction: column;
	line-height: 1.08;
}

.qq2-logo__name {
	color: var(--qq2-ink);
	font-size: 19px;
	font-weight: 800;
	letter-spacing: -.02em;
}

.qq2-logo__sub {
	color: var(--qq2-teal-dark);
	font-size: 11.5px;
	font-weight: 700;
	letter-spacing: .3em;
}

.qq2-nav {
	display: flex;
	align-items: center;
	gap: 2px;
}

.qq2-nav a {
	position: relative;
	padding: 10px 14px;
	color: #3a5050;
	font-size: 15px;
	font-weight: 600;
	transition: color .2s ease;
}

.qq2-nav a::after {
	content: "";
	position: absolute;
	left: 14px;
	right: 14px;
	bottom: 4px;
	height: 2px;
	border-radius: 2px;
	background: var(--qq2-teal);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform .22s ease;
}

.qq2-nav a:hover {
	color: var(--qq2-teal-dark);
}

.qq2-nav a:hover::after {
	transform: scaleX(1);
}

.qq2-header__actions {
	display: flex;
	align-items: center;
	gap: 12px;
}

.qq2-burger {
	display: none;
	width: 44px;
	height: 44px;
	align-items: center;
	justify-content: center;
	padding: 0;
	border: 1px solid var(--qq2-line-strong);
	border-radius: 12px;
	background: #fff;
	cursor: pointer;
}

.qq2-burger span,
.qq2-burger span::before,
.qq2-burger span::after {
	display: block;
	width: 18px;
	height: 2px;
	border-radius: 2px;
	background: var(--qq2-ink);
}

.qq2-burger span {
	position: relative;
}

.qq2-burger span::before,
.qq2-burger span::after {
	content: "";
	position: absolute;
	left: 0;
}

.qq2-burger span::before { top: -6px; }
.qq2-burger span::after { top: 6px; }

/* ---------- Hero ---------- */

.qq2-hero {
	position: relative;
	overflow: hidden;
	padding: 72px 0 84px;
	background:
		radial-gradient(760px 460px at 88% 6%, rgba(20, 184, 166, .22), transparent 62%),
		radial-gradient(620px 420px at 4% 96%, rgba(245, 158, 11, .16), transparent 60%),
		linear-gradient(160deg, #f6fcfb 0%, #eaf7f4 58%, #f7fcfb 100%);
}

.qq2-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	opacity: .55;
	background-image: radial-gradient(rgba(13, 148, 136, .22) 1px, transparent 1px);
	background-size: 24px 24px;
	mask-image: radial-gradient(circle at 62% 40%, #000 0%, transparent 72%);
	-webkit-mask-image: radial-gradient(circle at 62% 40%, #000 0%, transparent 72%);
	pointer-events: none;
}

.qq2-hero__inner {
	position: relative;
	display: grid;
	grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
	gap: 54px;
	align-items: center;
}

.qq2-chip {
	display: inline-flex;
	align-items: center;
	gap: 9px;
	padding: 8px 16px;
	border-radius: 999px;
	background: #fff;
	border: 1px solid var(--qq2-line-strong);
	color: var(--qq2-teal-dark);
	font-size: 13.5px;
	font-weight: 600;
	box-shadow: var(--qq2-shadow-sm);
}

.qq2-chip i {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: #10b981;
	box-shadow: 0 0 0 4px rgba(16, 185, 129, .16);
}

.qq2-hero h1 {
	margin-top: 22px;
	font-size: clamp(31px, 4.3vw, 50px);
	line-height: 1.2;
}

.qq2-hero h1 em {
	position: relative;
	font-style: normal;
	color: var(--qq2-teal-dark);
	white-space: nowrap;
}

.qq2-hero h1 em::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: 4px;
	height: 10px;
	border-radius: 6px;
	background: rgba(245, 158, 11, .32);
	z-index: -1;
}

.qq2-hero__lead {
	max-width: 560px;
	margin-top: 22px;
	color: var(--qq2-body);
	font-size: 17px;
	line-height: 1.9;
}

.qq2-hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 32px;
}

.qq2-hero__platforms {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px 14px;
	margin-top: 28px;
}

.qq2-hero__platforms span {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	padding: 7px 14px;
	border-radius: 999px;
	background: rgba(255, 255, 255, .78);
	border: 1px solid var(--qq2-line);
	color: #33504e;
	font-size: 13.5px;
	font-weight: 600;
}

.qq2-hero__platforms svg {
	width: 16px;
	height: 16px;
	fill: none;
	stroke: var(--qq2-teal);
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

/* Hero 视觉 */

.qq2-visual {
	position: relative;
}

.qq2-visual__blob {
	position: absolute;
	inset: -6% -4% -8% -4%;
	border-radius: 46px;
	background: linear-gradient(140deg, rgba(20, 184, 166, .34), rgba(245, 158, 11, .26));
	filter: blur(38px);
	opacity: .75;
}

.qq2-visual__card {
	position: relative;
	border-radius: var(--qq2-radius-lg);
	overflow: hidden;
	border: 6px solid #fff;
	box-shadow: var(--qq2-shadow-lg);
	background: #fff;
}

.qq2-visual__card img {
	width: 100%;
	display: block;
}

.qq2-float {
	position: absolute;
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 12px 16px;
	border-radius: 16px;
	background: rgba(255, 255, 255, .96);
	box-shadow: var(--qq2-shadow);
	border: 1px solid var(--qq2-line);
	color: var(--qq2-ink);
	font-size: 13.5px;
	font-weight: 700;
	white-space: nowrap;
}

.qq2-float__text {
	display: block;
	color: var(--qq2-muted);
	font-size: 12px;
	font-weight: 600;
	line-height: 1.4;
}

.qq2-float b {
	display: block;
	color: var(--qq2-teal-dark);
	font-size: 15.5px;
	font-weight: 800;
}

.qq2-float--top {
	top: 22px;
	left: -18px;
}

.qq2-float--bottom {
	right: -14px;
	bottom: 34px;
}

.qq2-float__dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: #10b981;
	box-shadow: 0 0 0 5px rgba(16, 185, 129, .16);
}

.qq2-float__icon {
	display: grid;
	place-items: center;
	width: 34px;
	height: 34px;
	border-radius: 10px;
	background: var(--qq2-teal-soft);
	color: var(--qq2-teal-dark);
}

.qq2-float__icon svg {
	width: 18px;
	height: 18px;
	fill: none;
	stroke: currentColor;
	stroke-width: 2.2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

/* ---------- 数据条 ---------- */

.qq2-stats {
	position: relative;
	margin-top: -46px;
	z-index: 3;
}

.qq2-stats__box {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 0;
	border-radius: var(--qq2-radius);
	background: #fff;
	border: 1px solid var(--qq2-line);
	box-shadow: var(--qq2-shadow);
	overflow: hidden;
}

.qq2-stat {
	padding: 26px 24px 24px;
	border-left: 1px solid var(--qq2-line);
}

.qq2-stat:first-child {
	border-left: 0;
}

.qq2-stat::before {
	content: "";
	display: block;
	width: 34px;
	height: 4px;
	border-radius: 4px;
	background-image: var(--qq2-grad);
	margin-bottom: 16px;
}

.qq2-stat b {
	display: block;
	color: var(--qq2-ink);
	font-size: 28px;
	font-weight: 800;
	letter-spacing: -.02em;
	line-height: 1.1;
}

.qq2-stat span {
	display: block;
	margin-top: 8px;
	color: var(--qq2-muted);
	font-size: 13.5px;
}

/* ---------- 通用区块 ---------- */

.qq2-section {
	padding: 88px 0;
}

.qq2-section--soft {
	background: var(--qq2-mint);
}

.qq2-head {
	max-width: 720px;
	margin: 0 auto 52px;
	text-align: center;
}

.qq2-head--left {
	margin-left: 0;
	text-align: left;
}

.qq2-eyebrow {
	display: inline-block;
	margin-bottom: 14px;
	padding: 6px 14px;
	border-radius: 8px;
	background: var(--qq2-teal-soft);
	color: var(--qq2-teal-dark);
	font-size: 13px;
	font-weight: 700;
	letter-spacing: .08em;
}

.qq2-section h2 {
	font-size: clamp(24px, 3vw, 35px);
}

.qq2-head p {
	margin-top: 16px;
	color: var(--qq2-muted);
	font-size: 16.5px;
	line-height: 1.85;
}

/* ---------- 功能优势 ---------- */

.qq2-features {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0 46px;
}

.qq2-feature {
	display: flex;
	gap: 18px;
	padding: 26px 0;
	border-top: 1px solid var(--qq2-line);
}

.qq2-feature:nth-child(-n+2) {
	border-top: 0;
	padding-top: 0;
}

.qq2-feature__icon {
	display: grid;
	place-items: center;
	flex: none;
	width: 48px;
	height: 48px;
	border-radius: 14px;
	background: var(--qq2-teal-soft);
	color: var(--qq2-teal-dark);
}

.qq2-feature__icon svg {
	width: 24px;
	height: 24px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.9;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.qq2-feature h3 {
	font-size: 18px;
}

.qq2-feature p {
	margin-top: 9px;
	color: var(--qq2-body);
	font-size: 15px;
	line-height: 1.85;
}

/* ---------- 下载中心 ---------- */

.qq2-download {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
	gap: 46px;
	align-items: start;
}

.qq2-download__intro h2 {
	font-size: clamp(24px, 3vw, 33px);
}

.qq2-download__intro p {
	margin-top: 18px;
	color: var(--qq2-body);
	font-size: 16px;
	line-height: 1.9;
}

.qq2-download__tips {
	display: grid;
	gap: 12px;
	margin-top: 26px;
}

.qq2-download__tips li {
	display: flex;
	gap: 10px;
	align-items: flex-start;
	color: #3d5453;
	font-size: 14.5px;
}

.qq2-download__tips svg {
	width: 18px;
	height: 18px;
	flex: none;
	margin-top: 4px;
	fill: none;
	stroke: var(--qq2-teal);
	stroke-width: 2.2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.qq2-dlpanel {
	border-radius: var(--qq2-radius);
	background: #fff;
	border: 1px solid var(--qq2-line);
	box-shadow: var(--qq2-shadow);
	overflow: hidden;
}

.qq2-dlrow {
	display: flex;
	align-items: center;
	gap: 18px;
	padding: 20px 24px;
	border-top: 1px solid var(--qq2-line);
}

.qq2-dlrow:first-child {
	border-top: 0;
}

.qq2-dlrow__icon {
	display: grid;
	place-items: center;
	flex: none;
	width: 44px;
	height: 44px;
	border-radius: 13px;
	background: var(--qq2-mint);
	color: var(--qq2-teal-dark);
}

.qq2-dlrow__icon svg {
	width: 22px;
	height: 22px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.8;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.qq2-dlrow__meta {
	flex: 1;
	min-width: 0;
}

.qq2-dlrow__meta b {
	display: block;
	color: var(--qq2-ink);
	font-size: 16px;
	font-weight: 800;
}

.qq2-dlrow__meta span {
	display: block;
	margin-top: 3px;
	color: var(--qq2-muted);
	font-size: 13px;
}

/* ---------- 安装教程（时间轴） ---------- */

.qq2-timeline {
	position: relative;
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 34px;
	padding-top: 12px;
}

.qq2-timeline::before {
	content: "";
	position: absolute;
	top: 38px;
	left: 12%;
	right: 12%;
	height: 2px;
	background: repeating-linear-gradient(90deg, var(--qq2-line-strong) 0 10px, transparent 10px 18px);
}

.qq2-step {
	position: relative;
	text-align: center;
}

.qq2-step__num {
	position: relative;
	display: grid;
	place-items: center;
	width: 54px;
	height: 54px;
	margin: 0 auto 22px;
	border-radius: 18px;
	background-image: var(--qq2-grad);
	color: #fff;
	font-size: 20px;
	font-weight: 800;
	box-shadow: 0 14px 28px rgba(13, 148, 136, .28);
}

.qq2-step h3 {
	font-size: 18px;
}

.qq2-step p {
	margin-top: 10px;
	color: var(--qq2-body);
	font-size: 14.8px;
	line-height: 1.85;
}

/* ---------- 节点覆盖 ---------- */

.qq2-nodes {
	display: grid;
	grid-template-columns: minmax(0, 1.45fr) minmax(0, .55fr);
	gap: 44px;
	align-items: center;
}

.qq2-nodes__map {
	border-radius: var(--qq2-radius-lg);
	background: #fff;
	border: 1px solid var(--qq2-line);
	box-shadow: var(--qq2-shadow);
	padding: 18px 20px 6px;
}

.qq2-nodes__map img {
	width: 100%;
}

.qq2-nodes__legend {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 20px;
	padding: 14px 4px 18px;
	color: var(--qq2-muted);
	font-size: 13px;
}

.qq2-nodes__legend i {
	display: inline-block;
	width: 9px;
	height: 9px;
	margin-right: 7px;
	border-radius: 50%;
	background: var(--qq2-teal);
}

.qq2-nodes__legend i.is-amber {
	background: var(--qq2-amber);
}

.qq2-nodes__list {
	display: grid;
	gap: 14px;
}

.qq2-nodeitem {
	padding: 18px 20px;
	border-radius: 16px;
	background: #fff;
	border: 1px solid var(--qq2-line);
	box-shadow: var(--qq2-shadow-sm);
}

.qq2-nodeitem b {
	display: block;
	color: var(--qq2-ink);
	font-size: 19px;
	font-weight: 800;
}

.qq2-nodeitem span {
	display: block;
	margin-top: 5px;
	color: var(--qq2-muted);
	font-size: 13.5px;
}

/* ---------- 场景 ---------- */

.qq2-scenes {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 24px;
}

.qq2-scene {
	position: relative;
	border-radius: var(--qq2-radius);
	overflow: hidden;
	box-shadow: var(--qq2-shadow);
	background: var(--qq2-teal-deep);
	transition: transform .3s ease, box-shadow .3s ease;
}

.qq2-scene:hover {
	transform: translateY(-6px);
	box-shadow: var(--qq2-shadow-lg);
}

.qq2-scene img {
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
}

.qq2-scene__body {
	position: absolute;
	inset: auto 0 0 0;
	padding: 24px 22px 22px;
	color: #eaf6f4;
}

.qq2-scene__body b {
	display: block;
	color: #fff;
	font-size: 18px;
	font-weight: 800;
}

.qq2-scene__body p {
	margin-top: 8px;
	color: #c6e3df;
	font-size: 14px;
	line-height: 1.72;
}

.qq2-scene__tag {
	position: absolute;
	top: 16px;
	left: 16px;
	padding: 6px 13px;
	border-radius: 999px;
	background: rgba(255, 255, 255, .92);
	color: var(--qq2-teal-dark);
	font-size: 12.5px;
	font-weight: 700;
}

/* ---------- 用户评价 ---------- */

.qq2-quotes {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 24px;
}

.qq2-quote {
	position: relative;
	padding: 34px 28px 26px;
	border-radius: var(--qq2-radius);
	background: #fff;
	border: 1px solid var(--qq2-line);
	box-shadow: var(--qq2-shadow-sm);
}

.qq2-quote::before {
	content: "\201C";
	position: absolute;
	top: 8px;
	left: 22px;
	color: rgba(13, 148, 136, .2);
	font-family: Georgia, serif;
	font-size: 68px;
	line-height: 1;
}

.qq2-quote p {
	position: relative;
	color: #33494a;
	font-size: 15.5px;
	line-height: 1.9;
}

.qq2-quote__user {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-top: 22px;
	padding-top: 18px;
	border-top: 1px dashed var(--qq2-line-strong);
}

.qq2-quote__avatar {
	display: grid;
	place-items: center;
	width: 42px;
	height: 42px;
	border-radius: 50%;
	background-image: var(--qq2-grad);
	color: #fff;
	font-size: 16px;
	font-weight: 800;
}

.qq2-quote__user b {
	display: block;
	color: var(--qq2-ink);
	font-size: 15px;
}

.qq2-quote__user span {
	display: block;
	color: var(--qq2-muted);
	font-size: 13px;
}

/* ---------- FAQ（全部可见的双列问答） ---------- */

.qq2-faq {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 20px;
}

.qq2-faqitem {
	padding: 26px 26px 24px;
	border-radius: var(--qq2-radius);
	background: #fff;
	border: 1px solid var(--qq2-line);
	border-left: 4px solid var(--qq2-teal);
	box-shadow: var(--qq2-shadow-sm);
}

.qq2-faqitem h3 {
	position: relative;
	padding-left: 30px;
	font-size: 16.5px;
	line-height: 1.6;
}

.qq2-faqitem h3::before {
	content: "Q";
	position: absolute;
	left: 0;
	top: 1px;
	display: grid;
	place-items: center;
	width: 21px;
	height: 21px;
	border-radius: 6px;
	background: var(--qq2-teal-soft);
	color: var(--qq2-teal-dark);
	font-size: 12px;
	font-weight: 800;
}

.qq2-faqitem p {
	margin-top: 12px;
	color: var(--qq2-body);
	font-size: 14.8px;
	line-height: 1.88;
}

/* ---------- 下载 CTA ---------- */

.qq2-cta {
	position: relative;
	overflow: hidden;
	padding: 76px 0;
	background: linear-gradient(135deg, #0f766e 0%, #0d9488 52%, #14b8a6 100%);
	color: #e8fffb;
	text-align: center;
}

.qq2-cta::after {
	content: "";
	position: absolute;
	inset: -50% -20% auto auto;
	width: 620px;
	height: 620px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(255, 255, 255, .26), transparent 62%);
	pointer-events: none;
}

.qq2-cta__inner {
	position: relative;
	max-width: 760px;
	margin: 0 auto;
}

.qq2-cta h2 {
	color: #fff;
	font-size: clamp(25px, 3.1vw, 35px);
}

.qq2-cta p {
	margin-top: 16px;
	color: rgba(255, 255, 255, .9);
	font-size: 16.5px;
	line-height: 1.9;
}

.qq2-cta__actions {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 14px;
	margin-top: 30px;
}

.qq2-cta__note {
	margin-top: 18px;
	color: rgba(255, 255, 255, .78);
	font-size: 13.5px;
}

/* ---------- 友情链接（极简一行） ---------- */

.qq2-links {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 2px 0;
	max-width: var(--qq2-wrap);
	margin: 0 auto;
	padding: 24px 22px 26px;
	border-top: 1px solid var(--qq2-line);
	color: var(--qq2-muted);
	font-size: 14px;
	line-height: 2;
}

.qq2-links__label {
	margin-right: 12px;
	color: #45605e;
	font-weight: 700;
	white-space: nowrap;
}

.qq2-links__item {
	padding: 0 9px;
	color: #6d8382;
	transition: color .2s ease;
}

.qq2-links__item:hover {
	color: var(--qq2-teal-dark);
}

.qq2-links__empty {
	color: #9aaeac;
	padding-left: 2px;
}

/* ---------- 页脚 ---------- */

.qq2-footer {
	background: linear-gradient(180deg, #062e2b 0%, #041f1d 100%);
	color: #9fc0bb;
	padding: 62px 0 26px;
}

.qq2-footer__top {
	display: grid;
	grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
	gap: 38px;
	padding-bottom: 40px;
	border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.qq2-footer__brand {
	display: flex;
	align-items: center;
	gap: 12px;
}

.qq2-footer__brand .qq2-logo__mark {
	box-shadow: none;
}

.qq2-footer__brand-name {
	color: #fff;
	font-size: 18px;
	font-weight: 800;
}

.qq2-footer__desc {
	margin-top: 18px;
	max-width: 400px;
	color: #93b5b0;
	font-size: 14px;
	line-height: 1.9;
}

.qq2-footer h3 {
	color: #fff;
	font-size: 15.5px;
	font-weight: 700;
}

.qq2-footer__list {
	display: grid;
	gap: 11px;
	margin-top: 18px;
}

.qq2-footer__list a {
	color: #9fc0bb;
	font-size: 14.5px;
	transition: color .2s ease;
}

.qq2-footer__list a:hover {
	color: #fff;
}

.qq2-footer__bottom {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding-top: 22px;
	color: #7fa19c;
	font-size: 13.5px;
}

.qq2-footer__disclaimer {
	margin-top: 16px;
	max-width: 980px;
	color: #6f938e;
	font-size: 12.5px;
	line-height: 1.9;
}

/* ---------- 入场动画（纯 CSS，内容始终可见） ---------- */

@keyframes qq2-rise {
	from {
		opacity: 0;
		transform: translateY(20px);
	}

	to {
		opacity: 1;
		transform: none;
	}
}

.qq2-rise {
	animation: qq2-rise .7s cubic-bezier(.22, .7, .3, 1) both;
}

.qq2-rise:nth-child(2) { animation-delay: .06s; }
.qq2-rise:nth-child(3) { animation-delay: .12s; }
.qq2-rise:nth-child(4) { animation-delay: .18s; }

@media (prefers-reduced-motion: reduce) {
	.qq2-rise {
		animation: none;
	}

	html {
		scroll-behavior: auto;
	}
}

/* ---------- 锚点偏移 ---------- */

#features,
#download,
#guide,
#nodes,
#scenes,
#faq,
#links {
	scroll-margin-top: 92px;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
	.qq2-hero__inner {
		grid-template-columns: 1fr;
		gap: 44px;
	}

	.qq2-visual {
		max-width: 560px;
	}

	.qq2-stats__box {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.qq2-stat:nth-child(3) {
		border-left: 0;
		border-top: 1px solid var(--qq2-line);
	}

	.qq2-stat:nth-child(4) {
		border-top: 1px solid var(--qq2-line);
	}

	.qq2-download,
	.qq2-nodes {
		grid-template-columns: 1fr;
		gap: 34px;
	}

	.qq2-nodes__list {
		grid-template-columns: repeat(4, minmax(0, 1fr));
		gap: 12px;
	}

	.qq2-footer__top {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 30px;
	}
}

@media (max-width: 900px) {
	.qq2-nav {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		display: none;
		flex-direction: column;
		align-items: stretch;
		gap: 2px;
		padding: 12px 22px 20px;
		background: #fff;
		border-bottom: 1px solid var(--qq2-line);
		box-shadow: 0 20px 40px rgba(6, 46, 43, .12);
	}

	.qq2-nav.is-open {
		display: flex;
	}

	.qq2-nav a {
		padding: 13px 12px;
		border-radius: 12px;
		font-size: 15.5px;
	}

	.qq2-nav a::after {
		display: none;
	}

	.qq2-burger {
		display: inline-flex;
	}

	.qq2-hide-sm {
		display: none;
	}

	.qq2-section {
		padding: 66px 0;
	}

	.qq2-hero {
		padding: 52px 0 74px;
	}

	.qq2-features {
		grid-template-columns: 1fr;
	}

	.qq2-feature:nth-child(2) {
		border-top: 1px solid var(--qq2-line);
		padding-top: 26px;
	}

	.qq2-timeline {
		grid-template-columns: 1fr;
		gap: 28px;
	}

	.qq2-timeline::before {
		display: none;
	}

	.qq2-scenes,
	.qq2-quotes,
	.qq2-faq {
		grid-template-columns: 1fr;
	}

	.qq2-nodes__list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 640px) {
	.qq2-stats__box,
	.qq2-nodes__list,
	.qq2-footer__top {
		grid-template-columns: 1fr;
	}

	.qq2-stat {
		border-left: 0;
		border-top: 1px solid var(--qq2-line);
	}

	.qq2-stat:first-child {
		border-top: 0;
	}

	.qq2-hero h1 {
		font-size: 29px;
	}

	.qq2-btn {
		width: 100%;
	}

	.qq2-hero__actions .qq2-btn {
		width: 100%;
	}

	.qq2-float--top {
		left: 8px;
	}

	.qq2-float--bottom {
		right: 8px;
	}

	.qq2-dlrow {
		flex-wrap: wrap;
	}

	.qq2-dlrow .qq2-btn {
		width: 100%;
	}
}