/* ==========================================================================
   QuickQ 官网单页 · 独立设计体系
   配色谱系：深空蓝靛底 + 电光青紫渐变（与同类站点区分）
   ========================================================================== */

.qq-body {
	--qq-ink: #070b1c;
	--qq-ink-2: #0c1230;
	--qq-ink-3: #151d44;
	--qq-blue: #3b5bff;
	--qq-violet: #7c3aed;
	--qq-cyan: #22d3ee;
	--qq-green: #34d399;
	--qq-text: #0f172a;
	--qq-muted: #5a6689;
	--qq-line: #e6eaf6;
	--qq-soft: #f4f7ff;
	--qq-white: #fff;
	--qq-grad: linear-gradient(118deg, #3b5bff 0%, #7c3aed 46%, #22d3ee 100%);
	--qq-grad-soft: linear-gradient(118deg, rgba(59, 91, 255, .12), rgba(124, 58, 237, .12) 46%, rgba(34, 211, 238, .12));
	--qq-radius: 20px;
	--qq-shadow: 0 20px 50px rgba(18, 28, 84, .10);
	--qq-shadow-lg: 0 34px 80px rgba(12, 18, 60, .16);
	margin: 0;
	padding: 0;
	background: var(--qq-white);
	color: var(--qq-text);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
	font-size: 16px;
	line-height: 1.75;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
	overflow-x: hidden;
}

:where(.qq-body) *,
:where(.qq-body) *::before,
:where(.qq-body) *::after {
	box-sizing: border-box;
}

:where(.qq-body) img {
	max-width: 100%;
	height: auto;
	display: block;
}

:where(.qq-body) a {
	color: inherit;
	text-decoration: none;
}

:where(.qq-body) :where(h1, h2, h3, h4) {
	margin: 0 0 .5em;
	line-height: 1.28;
	font-weight: 800;
	letter-spacing: -.01em;
	color: var(--qq-text);
}

:where(.qq-body) p {
	margin: 0 0 1em;
}

:where(.qq-body) :where(ul, ol) {
	margin: 0;
	padding: 0;
	list-style: none;
}

:where(.qq-body) strong {
	font-weight: 700;
}

.qq-container {
	width: 100%;
	max-width: 1180px;
	margin: 0 auto;
	padding: 0 24px;
}

.qq-hero-copy,
.qq-hero-visual,
.qq-app,
.qq-app-body,
.qq-app-main,
.qq-app-rows {
	min-width: 0;
}

.qq-skip {
	position: absolute;
	left: -9999px;
}

.qq-grad-text {
	background: var(--qq-grad);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	color: transparent;
}

/* ------------------------------------------------------------------ 顶栏 */
.qq-header {
	position: fixed;
	inset: 0 0 auto 0;
	z-index: 60;
	padding: 14px 0;
	transition: background .3s ease, box-shadow .3s ease, padding .3s ease, border-color .3s ease;
	border-bottom: 1px solid transparent;
}

.qq-header.is-stuck {
	padding: 8px 0;
	background: rgba(7, 11, 28, .88);
	backdrop-filter: saturate(180%) blur(14px);
	-webkit-backdrop-filter: saturate(180%) blur(14px);
	border-bottom-color: rgba(120, 150, 255, .18);
	box-shadow: 0 10px 40px rgba(4, 8, 24, .35);
}

.qq-header-inner {
	display: flex;
	align-items: center;
	gap: 18px;
}

.qq-brand {
	display: flex;
	align-items: center;
	gap: 12px;
	color: #fff;
	flex: 0 0 auto;
}

.qq-brand img {
	width: 42px;
	height: 42px;
	border-radius: 12px;
	box-shadow: 0 8px 22px rgba(59, 91, 255, .45);
}

.qq-brand-text {
	display: flex;
	flex-direction: column;
	line-height: 1.2;
}

.qq-brand-text strong {
	font-size: 17px;
	letter-spacing: .2px;
}

.qq-brand-text em {
	font-style: normal;
	font-size: 11.5px;
	color: rgba(226, 234, 255, .68);
	letter-spacing: .3px;
}

.qq-nav {
	display: flex;
	align-items: center;
	gap: 4px;
	margin-left: auto;
}

.qq-nav a {
	display: block;
	padding: 9px 14px;
	border-radius: 999px;
	color: rgba(233, 239, 255, .84);
	font-size: 14.5px;
	font-weight: 500;
	transition: color .2s, background .2s;
}

.qq-nav a:hover,
.qq-nav a.is-active {
	color: #fff;
	background: rgba(120, 150, 255, .14);
}

.qq-header-cta {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-left: 14px;
}

.qq-burger {
	display: none;
	width: 42px;
	height: 42px;
	border: 1px solid rgba(160, 180, 255, .28);
	border-radius: 12px;
	background: rgba(255, 255, 255, .06);
	padding: 11px 10px;
	cursor: pointer;
}

.qq-burger span {
	display: block;
	height: 2px;
	background: #e9efff;
	border-radius: 2px;
	margin: 4px 0;
}

/* ------------------------------------------------------------------ 按钮 */
.qq-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 15px 28px;
	border-radius: 14px;
	font-size: 15.5px;
	font-weight: 700;
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s;
	white-space: nowrap;
}

.qq-btn svg {
	width: 18px;
	height: 18px;
	flex: 0 0 auto;
}

.qq-btn-primary {
	background: var(--qq-grad);
	color: #fff;
	box-shadow: 0 16px 34px rgba(76, 76, 240, .32);
}

.qq-btn-primary:hover {
	transform: translateY(-2px);
	box-shadow: 0 22px 44px rgba(76, 76, 240, .42);
}

.qq-btn-ghost {
	background: rgba(255, 255, 255, .07);
	border-color: rgba(160, 180, 255, .34);
	color: #e8efff;
	backdrop-filter: blur(6px);
}

.qq-btn-ghost:hover {
	background: rgba(255, 255, 255, .14);
	transform: translateY(-2px);
}

.qq-btn-light {
	background: #fff;
	color: #1b2559;
	box-shadow: 0 12px 28px rgba(10, 18, 60, .18);
}

.qq-btn-light:hover {
	transform: translateY(-2px);
}

.qq-btn-sm {
	padding: 11px 20px;
	font-size: 14px;
	border-radius: 11px;
}

.qq-btn-block {
	width: 100%;
}

/* ------------------------------------------------------------------ 首屏 */
.qq-hero {
	position: relative;
	padding: 150px 0 118px;
	background: var(--qq-ink);
	overflow: hidden;
	color: #eaf0ff;
}

.qq-hero-bg {
	position: absolute;
	inset: 0;
	background-image: url("img/qq-hero-bg.webp");
	background-size: cover;
	background-position: center;
	opacity: .58;
	transform: scale(1.04);
}

.qq-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background:
		radial-gradient(900px 460px at 78% 8%, rgba(59, 91, 255, .42), transparent 68%),
		radial-gradient(760px 420px at 8% 82%, rgba(124, 58, 237, .34), transparent 70%),
		linear-gradient(180deg, rgba(5, 8, 24, .78) 0%, rgba(5, 8, 24, .92) 62%, var(--qq-ink) 100%);
}

.qq-hero::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image: linear-gradient(rgba(148, 176, 255, .07) 1px, transparent 1px),
		linear-gradient(90deg, rgba(148, 176, 255, .07) 1px, transparent 1px);
	background-size: 68px 68px;
	mask-image: radial-gradient(circle at 60% 30%, #000 0%, transparent 78%);
	-webkit-mask-image: radial-gradient(circle at 60% 30%, #000 0%, transparent 78%);
}

.qq-hero-inner {
	position: relative;
	z-index: 2;
	display: grid;
	grid-template-columns: 1.04fr .96fr;
	gap: 56px;
	align-items: center;
}

.qq-badge {
	display: inline-flex;
	align-items: center;
	gap: 9px;
	padding: 7px 15px 7px 12px;
	margin: 0 0 22px;
	border: 1px solid rgba(140, 170, 255, .32);
	border-radius: 999px;
	background: rgba(20, 30, 70, .55);
	font-size: 13.5px;
	color: #cfdcff;
	letter-spacing: .3px;
}

.qq-dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--qq-green);
	box-shadow: 0 0 0 4px rgba(52, 211, 153, .18);
	animation: qq-pulse 2.4s infinite;
}

.qq-hero h1 {
	font-size: 42px;
	line-height: 1.2;
	color: #fff;
	margin: 0 0 20px;
	letter-spacing: -.02em;
}

.qq-hero h1 span {
	background: linear-gradient(112deg, #8fb4ff 0%, #c4b5fd 42%, #67e8f9 100%);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
}

.qq-h1-sub {
	display: block;
}

.qq-lead {
	font-size: 16.5px;
	line-height: 1.85;
	color: rgba(219, 229, 255, .82);
	max-width: 620px;
}

.qq-lead strong {
	color: #fff;
	font-weight: 700;
}

.qq-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin: 30px 0 34px;
}

.qq-hero-meta {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 12px;
	padding: 18px 20px;
	border: 1px solid rgba(140, 170, 255, .18);
	border-radius: 16px;
	background: rgba(12, 18, 48, .62);
	backdrop-filter: blur(8px);
}

.qq-hero-meta li {
	display: flex;
	flex-direction: column;
	gap: 2px;
	min-width: 0;
}

.qq-hero-meta span {
	font-size: 12px;
	color: rgba(190, 205, 250, .62);
	letter-spacing: .4px;
}

.qq-hero-meta strong {
	font-size: 15px;
	color: #fff;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

/* 客户端界面（纯 CSS 原创绘制） */
.qq-hero-visual {
	position: relative;
	min-height: 430px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.qq-hero-glow {
	position: absolute;
	width: 420px;
	height: 420px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(59, 91, 255, .55), transparent 66%);
	filter: blur(18px);
	animation: qq-breathe 6s ease-in-out infinite;
}

.qq-app {
	position: relative;
	width: 100%;
	max-width: 430px;
	border-radius: 20px;
	background: linear-gradient(160deg, #141c40 0%, #0d1330 100%);
	border: 1px solid rgba(140, 170, 255, .22);
	box-shadow: 0 40px 90px rgba(3, 6, 20, .62);
	overflow: hidden;
	animation: qq-float 7s ease-in-out infinite;
}

.qq-app-bar {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 13px 16px;
	background: rgba(255, 255, 255, .04);
	border-bottom: 1px solid rgba(140, 170, 255, .12);
}

.qq-app-bar i {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: rgba(255, 255, 255, .22);
}

.qq-app-bar i:first-child {
	background: #ff6b6b;
}

.qq-app-bar i:nth-child(2) {
	background: #ffd166;
}

.qq-app-bar i:nth-child(3) {
	background: #34d399;
}

.qq-app-bar b {
	margin-left: auto;
	font-size: 11.5px;
	font-weight: 500;
	color: rgba(200, 215, 255, .62);
	letter-spacing: .4px;
}

.qq-app-body {
	display: grid;
	grid-template-columns: 132px 1fr;
}

.qq-app-side {
	padding: 16px 12px;
	border-right: 1px solid rgba(140, 170, 255, .12);
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.qq-app-side span {
	padding: 8px 10px;
	border-radius: 9px;
	font-size: 12.5px;
	color: rgba(200, 215, 255, .66);
}

.qq-app-side span.on {
	background: linear-gradient(120deg, rgba(59, 91, 255, .34), rgba(34, 211, 238, .22));
	color: #fff;
}

.qq-app-main {
	padding: 20px 18px 22px;
}

.qq-dial {
	position: relative;
	width: 148px;
	height: 148px;
	margin: 4px auto 12px;
	border-radius: 50%;
	background: conic-gradient(from 180deg, #3b5bff, #7c3aed, #22d3ee, #3b5bff);
	display: grid;
	place-items: center;
	animation: qq-spin 9s linear infinite;
}

.qq-dial::before {
	content: "";
	position: absolute;
	inset: 12px;
	border-radius: 50%;
	background: #0e1434;
}

.qq-dial-inner {
	position: relative;
	text-align: center;
	animation: qq-spin-rev 9s linear infinite;
}

.qq-dial-inner strong {
	display: block;
	font-size: 30px;
	color: #fff;
	line-height: 1;
}

.qq-dial-inner span {
	font-size: 11.5px;
	color: rgba(190, 205, 250, .7);
}

.qq-app-status {
	text-align: center;
	font-size: 13px;
	color: #7ef0c2;
	margin-bottom: 14px;
}

.qq-app-rows {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.qq-app-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 10px;
	padding: 9px 12px;
	border-radius: 10px;
	background: rgba(255, 255, 255, .045);
	font-size: 12.5px;
	color: rgba(210, 222, 255, .82);
}

.qq-app-row em {
	font-style: normal;
	color: #7ef0c2;
	font-variant-numeric: tabular-nums;
}

.qq-app-row u {
	text-decoration: none;
	color: rgba(160, 180, 235, .6);
}

.qq-spark {
	width: 100%;
	display: block;
	margin-top: 14px;
	height: 46px;
}

/* 数据条 */
.qq-stats {
	position: relative;
	z-index: 3;
	margin-top: -62px;
}

.qq-stats-inner {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 0;
	background: #fff;
	border-radius: 22px;
	box-shadow: var(--qq-shadow-lg);
	overflow: hidden;
}

.qq-stat {
	padding: 26px 22px;
	text-align: center;
	border-right: 1px solid var(--qq-line);
}

.qq-stat:last-child {
	border-right: 0;
}

.qq-stat strong {
	display: block;
	font-size: 32px;
	line-height: 1.1;
	background: var(--qq-grad);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
}

.qq-stat span {
	font-size: 13.5px;
	color: var(--qq-muted);
}

/* ------------------------------------------------------------ 通用区块 */
.qq-section {
	padding: 92px 0;
}

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

.qq-section.dark {
	position: relative;
	background: var(--qq-ink);
	color: #dfe7ff;
	overflow: hidden;
}

.qq-section.dark h2,
.qq-section.dark h3 {
	color: #fff;
}

.qq-head {
	max-width: 800px;
	margin: 0 auto 52px;
	text-align: center;
}

.qq-kicker {
	display: inline-block;
	margin-bottom: 14px;
	padding: 6px 14px;
	border-radius: 999px;
	background: var(--qq-grad-soft);
	color: #4b3ce0;
	font-size: 12.5px;
	font-weight: 700;
	letter-spacing: 1.6px;
	text-transform: uppercase;
}

.qq-section.dark .qq-kicker {
	background: rgba(120, 150, 255, .16);
	color: #a8c4ff;
}

.qq-head h2 {
	font-size: 33px;
	margin-bottom: 14px;
}

.qq-head p {
	color: var(--qq-muted);
	font-size: 16px;
	margin: 0;
}

.qq-section.dark .qq-head p {
	color: rgba(205, 218, 255, .76);
}

.qq-reveal {
	opacity: 0;
	transform: translateY(26px);
	transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1);
}

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

/* ------------------------------------------------------------ 功能亮点 */
.qq-features {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 22px;
}

.qq-card {
	position: relative;
	padding: 30px 26px;
	background: #fff;
	border: 1px solid var(--qq-line);
	border-radius: var(--qq-radius);
	box-shadow: 0 12px 30px rgba(20, 30, 80, .05);
	transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.qq-card:hover {
	transform: translateY(-6px);
	box-shadow: var(--qq-shadow);
	border-color: rgba(99, 102, 241, .34);
}

.qq-ico {
	display: grid;
	place-items: center;
	width: 52px;
	height: 52px;
	margin-bottom: 18px;
	border-radius: 15px;
	background: var(--qq-grad);
	box-shadow: 0 12px 26px rgba(76, 76, 240, .28);
}

.qq-ico svg {
	width: 26px;
	height: 26px;
	stroke: #fff;
	fill: none;
	stroke-width: 1.9;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.qq-card h3 {
	font-size: 19px;
	margin-bottom: 10px;
}

.qq-card p {
	margin: 0;
	color: var(--qq-muted);
	font-size: 14.5px;
	line-height: 1.8;
}

/* ------------------------------------------------------------ 下载中心 */
.qq-dl-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 20px;
}

.qq-dl {
	position: relative;
	display: flex;
	flex-direction: column;
	padding: 26px 24px 24px;
	background: #fff;
	border: 1px solid var(--qq-line);
	border-radius: 18px;
	box-shadow: 0 12px 30px rgba(20, 30, 80, .05);
	transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.qq-dl:hover {
	transform: translateY(-6px);
	border-color: rgba(99, 102, 241, .34);
	box-shadow: var(--qq-shadow);
}

.qq-dl.primary {
	border-color: rgba(124, 58, 237, .42);
	box-shadow: 0 22px 46px rgba(76, 76, 240, .16);
}

.qq-dl.primary::after {
	content: "推荐";
	position: absolute;
	top: -11px;
	right: 20px;
	padding: 3px 12px;
	border-radius: 999px;
	background: var(--qq-grad);
	color: #fff;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: .6px;
}

.qq-dl-top {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 16px;
}

.qq-os {
	display: grid;
	place-items: center;
	width: 46px;
	height: 46px;
	border-radius: 13px;
	background: var(--qq-soft);
	border: 1px solid var(--qq-line);
}

.qq-os svg {
	width: 24px;
	height: 24px;
	fill: #2b3a7a;
}

.qq-dl-top h3 {
	font-size: 18px;
	margin: 0;
}

.qq-dl-top small {
	display: block;
	color: var(--qq-muted);
	font-size: 12.5px;
}

.qq-dl-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0 0 16px;
}

.qq-tag {
	padding: 4px 10px;
	border-radius: 8px;
	background: var(--qq-soft);
	border: 1px solid var(--qq-line);
	color: #47548a;
	font-size: 12px;
}

.qq-dl-note {
	margin: 0 0 18px;
	color: var(--qq-muted);
	font-size: 13.5px;
	line-height: 1.7;
}

.qq-dl .qq-btn {
	margin-top: auto;
}

.qq-dl-foot {
	margin-top: 26px;
	padding: 20px 22px;
	border-radius: 16px;
	background: #fff;
	border: 1px dashed rgba(99, 102, 241, .34);
	color: var(--qq-muted);
	font-size: 14px;
}

.qq-dl-foot strong {
	color: #22306b;
}

/* ------------------------------------------------------------ 安装教程 */
.qq-steps {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 26px;
	position: relative;
}

.qq-step {
	position: relative;
	padding: 34px 26px 30px;
	background: #fff;
	border: 1px solid var(--qq-line);
	border-radius: var(--qq-radius);
	box-shadow: 0 14px 34px rgba(20, 30, 80, .06);
}

.qq-step::before {
	content: "";
	position: absolute;
	top: 50%;
	right: -26px;
	width: 26px;
	height: 2px;
	background: repeating-linear-gradient(90deg, rgba(124, 58, 237, .5) 0 6px, transparent 6px 12px);
}

.qq-step:last-child::before {
	display: none;
}

.qq-step-num {
	display: grid;
	place-items: center;
	width: 44px;
	height: 44px;
	margin-bottom: 16px;
	border-radius: 13px;
	background: var(--qq-grad);
	color: #fff;
	font-weight: 800;
	font-size: 18px;
	box-shadow: 0 12px 24px rgba(76, 76, 240, .26);
}

.qq-step h3 {
	font-size: 19px;
	margin-bottom: 10px;
}

.qq-step p {
	margin: 0;
	color: var(--qq-muted);
	font-size: 14.5px;
}

.qq-step ul {
	margin: 12px 0 0;
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.qq-step li {
	position: relative;
	padding-left: 18px;
	font-size: 13.5px;
	color: var(--qq-muted);
}

.qq-step li::before {
	content: "";
	position: absolute;
	left: 3px;
	top: 9px;
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--qq-cyan);
}

/* ------------------------------------------------------------ 节点覆盖 */
.qq-net-bg {
	position: absolute;
	inset: 0;
	background-image: url("img/qq-network-bg.webp");
	background-size: cover;
	background-position: center;
	opacity: .22;
}

.qq-section.dark .qq-container {
	position: relative;
	z-index: 2;
}

.qq-net-grid {
	display: grid;
	grid-template-columns: .92fr 1.08fr;
	gap: 48px;
	align-items: center;
}

.qq-radar {
	position: relative;
	width: 100%;
	max-width: 420px;
	margin: 0 auto;
}

.qq-radar svg {
	width: 100%;
	height: auto;
	overflow: visible;
}

.qq-region-list {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 14px 22px;
}

.qq-region {
	padding: 16px 18px;
	border-radius: 14px;
	background: rgba(255, 255, 255, .05);
	border: 1px solid rgba(140, 170, 255, .16);
}

.qq-region-head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 10px;
	margin-bottom: 10px;
}

.qq-region-head strong {
	color: #fff;
	font-size: 15px;
}

.qq-region-head em {
	font-style: normal;
	font-size: 13px;
	color: #7ef0c2;
	font-variant-numeric: tabular-nums;
}

.qq-bar {
	height: 6px;
	border-radius: 6px;
	background: rgba(255, 255, 255, .1);
	overflow: hidden;
}

.qq-bar i {
	display: block;
	height: 100%;
	border-radius: 6px;
	background: var(--qq-grad);
}

.qq-net-foot {
	margin-top: 34px;
	padding: 20px 24px;
	border-radius: 16px;
	background: rgba(255, 255, 255, .05);
	border: 1px solid rgba(140, 170, 255, .16);
	color: rgba(205, 218, 255, .78);
	font-size: 14px;
}

/* ------------------------------------------------------------ 界面预览 */
.qq-previews {
	display: grid;
	grid-template-columns: 1.06fr .94fr;
	gap: 30px;
	align-items: start;
}

.qq-shot {
	padding: 16px;
	border-radius: 22px;
	background: linear-gradient(160deg, #f2f5ff, #e7ecfb);
	border: 1px solid var(--qq-line);
	box-shadow: var(--qq-shadow);
}

.qq-shot .qq-app {
	max-width: none;
	box-shadow: 0 24px 60px rgba(12, 18, 60, .28);
	animation: none;
}

.qq-shot-cap {
	margin-top: 14px;
	text-align: center;
	font-size: 13.5px;
	color: var(--qq-muted);
}

.qq-shot-side {
	display: flex;
	flex-direction: column;
	gap: 18px;
}

.qq-shot-side .qq-card {
	padding: 24px 22px;
}

.qq-shot-side h3 {
	font-size: 17.5px;
	margin-bottom: 8px;
}

.qq-check {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin: 0;
}

.qq-check li {
	position: relative;
	padding-left: 26px;
	font-size: 14px;
	color: var(--qq-muted);
}

.qq-check li::before {
	content: "";
	position: absolute;
	left: 0;
	top: 4px;
	width: 16px;
	height: 16px;
	border-radius: 50%;
	background: var(--qq-grad);
}

.qq-check li::after {
	content: "";
	position: absolute;
	left: 5px;
	top: 8px;
	width: 6px;
	height: 3px;
	border-left: 1.6px solid #fff;
	border-bottom: 1.6px solid #fff;
	transform: rotate(-45deg);
}

/* ------------------------------------------------------------ 使用场景 */
.qq-scenes {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 22px;
}

.qq-scene {
	position: relative;
	display: block;
	border-radius: var(--qq-radius);
	overflow: hidden;
	background: #0d1330;
	box-shadow: 0 16px 38px rgba(20, 30, 80, .12);
}

.qq-scene img {
	width: 100%;
	height: 220px;
	object-fit: cover;
	transition: transform .6s cubic-bezier(.2, .7, .2, 1);
}

.qq-scene:hover img {
	transform: scale(1.06);
}

.qq-scene-body {
	position: absolute;
	inset: auto 0 0 0;
	padding: 46px 20px 20px;
	background: linear-gradient(180deg, transparent, rgba(6, 9, 26, .92));
	color: #fff;
}

.qq-scene-body h3 {
	color: #fff;
	font-size: 17px;
	margin-bottom: 6px;
}

.qq-scene-body p {
	margin: 0;
	font-size: 13.5px;
	color: rgba(216, 226, 255, .8);
	line-height: 1.7;
}

/* ------------------------------------------------------------ 常见问题 */
.qq-timeline {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 20px;
}

.qq-log {
	position: relative;
	padding: 26px 24px;
	background: #fff;
	border: 1px solid var(--qq-line);
	border-radius: var(--qq-radius);
	box-shadow: 0 12px 30px rgba(20, 30, 80, .05);
}

.qq-log::before {
	content: "";
	position: absolute;
	top: 34px;
	left: 0;
	width: 4px;
	height: 26px;
	border-radius: 0 4px 4px 0;
	background: var(--qq-grad);
}

.qq-log-date {
	display: inline-block;
	margin-bottom: 10px;
	padding: 3px 10px;
	border-radius: 8px;
	background: var(--qq-soft);
	border: 1px solid var(--qq-line);
	color: #4b54a0;
	font-size: 12.5px;
	font-variant-numeric: tabular-nums;
}

.qq-log h3 {
	font-size: 17px;
	margin-bottom: 8px;
}

.qq-log p {
	margin: 0;
	color: var(--qq-muted);
	font-size: 14px;
	line-height: 1.8;
}

.qq-faq {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 16px;
}

.qq-faq-item {
	background: #fff;
	border: 1px solid var(--qq-line);
	border-radius: 16px;
	box-shadow: 0 10px 26px rgba(20, 30, 80, .05);
	overflow: hidden;
	transition: border-color .25s, box-shadow .25s;
}

.qq-faq-item[open] {
	border-color: rgba(99, 102, 241, .36);
	box-shadow: 0 18px 40px rgba(76, 76, 240, .12);
}

.qq-faq-q {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 18px 20px;
	cursor: pointer;
	font-size: 15.5px;
	font-weight: 700;
	color: #182253;
	list-style: none;
}

.qq-faq-q::-webkit-details-marker {
	display: none;
}

.qq-faq-idx {
	flex: 0 0 auto;
	font-size: 12.5px;
	font-weight: 800;
	padding: 3px 8px;
	border-radius: 8px;
	background: var(--qq-grad-soft);
	color: #4b3ce0;
}

.qq-faq-a {
	padding: 0 20px 20px;
}

.qq-faq-a p {
	margin: 0;
	font-size: 14.5px;
	line-height: 1.85;
	color: var(--qq-muted);
}

/* -------------------------------------------------------- 友情链接（极简） */
.qq-flinks {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 4px 16px;
	padding: 22px 0 0;
	margin: 0 auto;
	max-width: 1180px;
	font-size: 14px;
	color: var(--qq-muted);
	line-height: 1.9;
}

.qq-flinks-label {
	font-weight: 700;
	color: #3a4470;
}

.qq-flink {
	color: #5a6689;
	transition: color .2s;
}

.qq-flink:hover {
	color: var(--qq-blue);
	text-decoration: underline;
}

.qq-flinks-empty {
	color: #97a1bf;
}

/* ------------------------------------------------------------ 结尾 CTA */
.qq-cta {
	position: relative;
	padding: 66px 52px;
	border-radius: 26px;
	background: radial-gradient(900px 400px at 82% 12%, rgba(34, 211, 238, .26), transparent 62%),
		radial-gradient(700px 380px at 8% 88%, rgba(124, 58, 237, .3), transparent 64%),
		linear-gradient(140deg, #0a1130, #131b4a);
	overflow: hidden;
	color: #fff;
	text-align: center;
}

.qq-cta h2 {
	color: #fff;
	font-size: 30px;
	margin-bottom: 14px;
}

.qq-cta p {
	max-width: 720px;
	margin: 0 auto 28px;
	color: rgba(210, 222, 255, .82);
}

.qq-cta-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	justify-content: center;
}

.qq-cta-hint {
	margin-top: 20px;
	font-size: 13px;
	color: rgba(190, 205, 250, .62);
}

/* ---------------------------------------------------------------- 页脚 */
.qq-footer {
	position: relative;
	padding: 62px 0 28px;
	background: #05081a;
	color: rgba(203, 214, 245, .72);
	font-size: 14px;
}

.qq-footer-grid {
	display: grid;
	grid-template-columns: 1.4fr 1fr 1fr;
	gap: 40px;
	padding-bottom: 34px;
	border-bottom: 1px solid rgba(140, 170, 255, .14);
}

.qq-footer .qq-brand {
	color: #fff;
}

.qq-footer-desc {
	margin: 16px 0 0;
	max-width: 380px;
	font-size: 13.5px;
	line-height: 1.85;
	color: rgba(190, 203, 240, .66);
}

.qq-footer h4 {
	color: #fff;
	font-size: 15px;
	margin-bottom: 14px;
}

.qq-footer-links {
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.qq-footer-links a {
	color: rgba(190, 203, 240, .72);
	font-size: 13.5px;
}

.qq-footer-links a:hover {
	color: #fff;
}

.qq-footer-bottom {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	justify-content: space-between;
	padding-top: 22px;
	font-size: 12.5px;
	color: rgba(170, 185, 225, .55);
}

.qq-disclaimer {
	margin-top: 14px;
	font-size: 12.5px;
	line-height: 1.8;
	color: rgba(160, 175, 215, .5);
}

/* ------------------------------------------------------------ 动画效果 */
@keyframes qq-pulse {
	0%, 100% { box-shadow: 0 0 0 4px rgba(52, 211, 153, .18); }
	50% { box-shadow: 0 0 0 8px rgba(52, 211, 153, .06); }
}

@keyframes qq-float {
	0%, 100% { transform: translateY(0); }
	50% { transform: translateY(-12px); }
}

@keyframes qq-breathe {
	0%, 100% { opacity: .78; transform: scale(1); }
	50% { opacity: 1; transform: scale(1.06); }
}

@keyframes qq-spin {
	to { transform: rotate(360deg); }
}

@keyframes qq-spin-rev {
	to { transform: rotate(-360deg); }
}

@media (prefers-reduced-motion: reduce) {
	.qq-body * {
		animation-duration: .001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: .001ms !important;
	}
	.qq-reveal {
		opacity: 1;
		transform: none;
	}
}

/* ------------------------------------------------------------ 响应式 */
@media (max-width: 1080px) {
	.qq-hero h1 { font-size: 39px; }
	.qq-hero-inner { gap: 36px; }
	.qq-app-body { grid-template-columns: 112px 1fr; }
	.qq-features, .qq-dl-grid, .qq-steps, .qq-scenes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.qq-step::before { display: none; }
	.qq-net-grid { grid-template-columns: 1fr; gap: 34px; }
	.qq-previews { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
	.qq-nav {
		position: fixed;
		inset: 62px 12px auto 12px;
		flex-direction: column;
		align-items: stretch;
		gap: 2px;
		padding: 12px;
		border-radius: 16px;
		background: rgba(8, 12, 32, .96);
		border: 1px solid rgba(140, 170, 255, .2);
		box-shadow: 0 24px 60px rgba(3, 6, 20, .5);
		display: none;
	}
	.qq-nav.is-open { display: flex; }
	.qq-nav a { padding: 12px 14px; }
	.qq-burger { display: block; }
	.qq-header .qq-btn-sm { display: none; }
	.qq-hero { padding: 122px 0 96px; }
	.qq-hero-inner { grid-template-columns: 1fr; }
	.qq-hero-visual { min-height: 0; margin-top: 12px; }
	.qq-hero-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.qq-head h2 { font-size: 27px; }
	.qq-section { padding: 68px 0; }
	.qq-stats-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.qq-stat:nth-child(2) { border-right: 0; }
	.qq-stat { border-bottom: 1px solid var(--qq-line); }
	.qq-faq { grid-template-columns: 1fr; }
	.qq-timeline { grid-template-columns: 1fr; }
	.qq-region-list { grid-template-columns: 1fr; }
	.qq-cta { padding: 48px 26px; }
	.qq-footer-grid { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 640px) {
	.qq-container { padding: 0 18px; }
	.qq-hero h1 { font-size: 27px; }
	.qq-lead { font-size: 15.5px; }
	.qq-hero-actions .qq-btn { flex: 1 1 100%; }
	.qq-features, .qq-dl-grid, .qq-steps, .qq-scenes { grid-template-columns: 1fr; }
	.qq-stat strong { font-size: 26px; }
	.qq-head h2 { font-size: 23px; }
	.qq-section { padding: 56px 0; }
	.qq-brand-text em { display: none; }
	.qq-flinks { justify-content: center; text-align: center; padding-top: 18px; }
	.qq-scene img { height: 190px; }
	.qq-app { max-width: 100%; }
	.qq-app-body { grid-template-columns: 92px minmax(0, 1fr); }
	.qq-app-side { padding: 12px 8px; }
	.qq-app-side span { padding: 7px 8px; font-size: 11.5px; }
	.qq-app-main { padding: 16px 14px 18px; }
	.qq-dial { width: 118px; height: 118px; }
	.qq-dial-inner strong { font-size: 24px; }
	.qq-app-row { font-size: 11.5px; padding: 8px 10px; }
}

@media (max-width: 420px) {
	.qq-hero-meta { grid-template-columns: 1fr; }
	.qq-stats-inner { grid-template-columns: 1fr; }
	.qq-stat { border-right: 0; }
}