/* ==========================================================================
   QuickQ软件下载 单页 · 独立设计体系（134 站）
   配色：蔚蓝 + 天青 + 珊瑚点缀 + 冷白底
   ========================================================================== */

.ac-body {
	--ac-teal: #0f766e;
	--ac-teal-d: #0b5b55;
	--ac-yellow: #facc15;
	--ac-deep: #10302e;
	--ac-ink: #0b2b2a;
	--ac-text: #16302e;
	--ac-muted: #5f7a76;
	--ac-line: #dcede9;
	--ac-soft: #f1faf8;
	--ac-grad: linear-gradient(118deg, #0f766e 0%, #14b8a6 55%, #2dd4bf 100%);
	--ac-grad-soft: linear-gradient(118deg, rgba(15, 118, 110, .14), rgba(250, 204, 21, .18));
	--ac-radius: 18px;
	--ac-shadow: 0 20px 44px rgba(10, 70, 66, .12);
	margin: 0;
	padding: 0;
	background: #fff;
	color: var(--ac-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;
	overflow-x: clip;
}

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

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

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

:where(.ac-body) :where(h1, h2, h3, h4) {
	margin: 0 0 .5em;
	line-height: 1.3;
	font-weight: 800;
	letter-spacing: -.01em;
	color: var(--ac-text);
}

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

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

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

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

/* --------------------------------------------------------- 顶部公告条 */
/* 首屏右侧：加速测试卡 */
.ac-test {
	border: 1px solid var(--ac-line);
	border-radius: 20px;
	background: #fff;
	box-shadow: var(--ac-shadow);
	padding: 22px 22px 20px;
}

.ac-test-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 6px;
}

.ac-test-head h2 {
	margin: 0;
	font-size: 19px;
}

.ac-test-head span {
	padding: 4px 10px;
	border-radius: 8px;
	background: var(--ac-soft);
	color: var(--ac-teal-d);
	font-size: 12.5px;
	font-weight: 700;
}

.ac-gauge {
	position: relative;
	width: 190px;
	height: 106px;
	margin: 10px auto 4px;
	overflow: hidden;
}

.ac-gauge::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	width: 190px;
	height: 190px;
	border-radius: 50%;
	background: conic-gradient(from 180deg, var(--ac-teal) 0deg, #2dd4bf 90deg, var(--ac-yellow) 180deg);
}

.ac-gauge::after {
	content: "";
	position: absolute;
	left: 22px;
	top: 22px;
	width: 146px;
	height: 146px;
	border-radius: 50%;
	background: #fff;
}

.ac-gauge-needle {
	position: absolute;
	left: 91px;
	top: 92px;
	width: 62px;
	height: 5px;
	border-radius: 4px;
	background: var(--ac-teal-d);
	transform-origin: 4px 50%;
	transform: rotate(-42deg);
	z-index: 2;
	animation: ac-needle 4.6s ease-in-out infinite;
}

.ac-gauge-dot {
	position: absolute;
	left: 82px;
	top: 84px;
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background: var(--ac-yellow);
	border: 3px solid #fff;
	box-shadow: 0 4px 12px rgba(10, 70, 66, .25);
	z-index: 3;
}

.ac-gauge-value {
	text-align: center;
	margin-bottom: 14px;
}

.ac-gauge-value b {
	display: block;
	font-size: 30px;
	line-height: 1.1;
	color: var(--ac-teal-d);
	font-variant-numeric: tabular-nums;
}

.ac-gauge-value span {
	color: var(--ac-muted);
	font-size: 12.5px;
}

.ac-results {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 8px;
	margin-bottom: 14px;
}

.ac-results div {
	padding: 9px 10px;
	border-radius: 11px;
	background: var(--ac-soft);
	border: 1px solid var(--ac-line);
	text-align: center;
	min-width: 0;
}

.ac-results b {
	display: block;
	color: var(--ac-text);
	font-size: 15px;
	font-variant-numeric: tabular-nums;
}

.ac-results span {
	color: var(--ac-muted);
	font-size: 11.5px;
}

.ac-node-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 10px;
	padding: 10px 12px;
	border-radius: 11px;
	border: 1px solid var(--ac-line);
	background: #fff;
	font-size: 13px;
	color: var(--ac-muted);
	margin-bottom: 12px;
}

.ac-node-row em {
	font-style: normal;
	color: var(--ac-teal-d);
	font-weight: 700;
}

/* 加速原理：编号行 */
.ac-principle {
	display: flex;
	gap: 18px;
	padding: 22px 24px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: 16px;
	box-shadow: 0 12px 28px rgba(10, 70, 66, .05);
	transition: border-color .24s, transform .24s;
}

.ac-principle + .ac-principle {
	margin-top: 16px;
}

.ac-principle:hover {
	border-color: rgba(15, 118, 110, .42);
	transform: translateY(-3px);
}

.ac-principle-num {
	flex: 0 0 auto;
	width: 46px;
	height: 46px;
	display: grid;
	place-items: center;
	border-radius: 13px;
	background: var(--ac-grad);
	color: #fff;
	font-weight: 800;
	font-size: 16px;
	box-shadow: 0 12px 24px rgba(15, 118, 110, .24);
}

.ac-principle h3 {
	font-size: 18px;
	margin-bottom: 6px;
}

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

.ac-client {
	border: 1px solid var(--ac-line);
	border-radius: 18px;
	background: #fff;
	box-shadow: var(--ac-shadow);
	overflow: hidden;
}

.ac-client-bar {
	display: flex;
	align-items: center;
	gap: 7px;
	padding: 11px 16px;
	border-bottom: 1px solid var(--ac-line);
	background: #f4fbf9;
}

.ac-client-bar i {
	width: 9px;
	height: 9px;
	border-radius: 50%;
	background: #e6d7cc;
}

.ac-client-bar i:first-child { background: #0f766e; }
.ac-client-bar i:nth-child(2) { background: #ffc93c; }
.ac-client-bar i:nth-child(3) { background: #7ed957; }

.ac-client-bar b {
	margin-left: auto;
	color: var(--ac-muted);
	font-size: 11.5px;
	font-weight: 600;
}

.ac-client-body {
	display: grid;
	grid-template-columns: 108px 1fr 152px;
	gap: 0;
}

.ac-client-side {
	display: flex;
	flex-direction: column;
	gap: 5px;
	padding: 14px 10px;
	border-right: 1px solid var(--ac-line);
	background: #fffdfb;
}

.ac-client-side span {
	padding: 7px 9px;
	border-radius: 8px;
	color: var(--ac-muted);
	font-size: 12px;
}

.ac-client-side span.on {
	background: var(--ac-grad);
	color: #3a1d0c;
	font-weight: 700;
}

.ac-client-main {
	padding: 16px 16px 14px;
}

.ac-status {
	display: flex;
	align-items: center;
	gap: 8px;
	color: #2f7a4a;
	font-size: 12.5px;
	margin-bottom: 12px;
}

.ac-led {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: #34d399;
	box-shadow: 0 0 0 4px rgba(52, 211, 153, .18);
}

.ac-metrics {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 8px;
	margin-bottom: 12px;
}

.ac-metrics div {
	padding: 9px 10px;
	border-radius: 10px;
	background: #f4fbf9;
	border: 1px solid var(--ac-line);
	min-width: 0;
}

.ac-metrics b {
	display: block;
	color: var(--ac-text);
	font-size: 17px;
	line-height: 1.2;
	font-variant-numeric: tabular-nums;
}

.ac-metrics span {
	color: var(--ac-muted);
	font-size: 11.5px;
}

.ac-graph {
	display: flex;
	align-items: flex-end;
	gap: 4px;
	height: 52px;
	padding: 8px;
	border-radius: 10px;
	background: #f4fbf9;
	border: 1px solid var(--ac-line);
}

.ac-graph i {
	flex: 1 1 auto;
	border-radius: 3px 3px 0 0;
	background: var(--ac-grad);
	opacity: .85;
}

.ac-client-nodes {
	padding: 14px 12px;
	border-left: 1px solid var(--ac-line);
	background: #fffdfb;
}

.ac-client-nodes > b {
	display: block;
	margin-bottom: 9px;
	color: var(--ac-text);
	font-size: 12.5px;
}

.ac-node {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	padding: 6px 8px;
	border-radius: 7px;
	font-size: 11.5px;
	color: var(--ac-muted);
}

.ac-node em {
	font-style: normal;
	color: #2f7a4a;
	font-variant-numeric: tabular-nums;
}

.ac-node.on {
	background: #eafaf6;
	color: var(--ac-text);
	font-weight: 600;
}

/* 移动端底部悬浮下载条 */
.ac-downloadbar {
	display: none;
}

.ac-announce {
	background: linear-gradient(96deg, #0b5b55, #0f766e 46%, #14b8a6);
	color: #efe6ff;
	font-size: 14px;
}

.ac-announce-inner {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 12px;
	flex-wrap: wrap;
	padding: 9px 0;
	text-align: center;
}

.ac-announce b {
	color: #fff;
}

.ac-announce-pill {
	padding: 2px 10px;
	border-radius: 999px;
	background: var(--ac-yellow);
	color: #3a3206;
	font-size: 12.5px;
	font-weight: 800;
}

.ac-announce a {
	color: #e6d6ff;
	text-decoration: underline;
}

.ac-announce a:hover {
	color: #fff;
}

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

/* 隐藏主题自带的回到顶部按钮（单页使用独立交互） */
#scroll-to-top,
.scroll-to-top,
.neve-scroll-to-top {
	display: none !important;
}

/* --------------------------------------------------------------- 顶栏 */
.ac-header {
	position: sticky;
	top: 0;
	z-index: 60;
	background: rgba(255, 255, 255, .9);
	backdrop-filter: saturate(180%) blur(12px);
	-webkit-backdrop-filter: saturate(180%) blur(12px);
	border-bottom: 1px solid transparent;
	transition: box-shadow .25s, border-color .25s;
}

.ac-header.is-stuck {
	border-bottom-color: var(--ac-line);
	box-shadow: 0 12px 30px rgba(10, 70, 66, .07);
}

.ac-header-inner {
	display: flex;
	align-items: center;
	gap: 18px;
	padding: 12px 0;
}

.ac-brand {
	display: flex;
	align-items: center;
	gap: 11px;
	flex: 0 0 auto;
}

.ac-brand img {
	width: 42px;
	height: 42px;
	border-radius: 12px;
	box-shadow: 0 10px 22px rgba(15, 118, 110, .26);
}

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

.ac-brand-text strong {
	font-size: 17px;
	color: var(--ac-ink);
}

.ac-brand-text em {
	font-style: normal;
	font-size: 11.5px;
	color: var(--ac-muted);
}

.ac-nav {
	display: flex;
	align-items: center;
	gap: 2px;
	margin-left: auto;
}

.ac-nav a {
	padding: 9px 13px;
	border-radius: 10px;
	color: #375c57;
	font-size: 14.5px;
	font-weight: 500;
	transition: background .2s, color .2s;
}

.ac-nav a:hover,
.ac-nav a.is-active {
	background: var(--ac-soft);
	color: var(--ac-teal);
}

.ac-header-cta {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-left: 12px;
}

.ac-burger {
	display: none;
	width: 42px;
	height: 42px;
	padding: 11px 10px;
	border: 1px solid var(--ac-line);
	border-radius: 12px;
	background: #fff;
	cursor: pointer;
}

.ac-burger span {
	display: block;
	height: 2px;
	margin: 4px 0;
	border-radius: 2px;
	background: var(--ac-ink);
}

/* --------------------------------------------------------------- 按钮 */
.ac-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 14px 26px;
	border: 1px solid transparent;
	border-radius: 12px;
	font-size: 15.5px;
	font-weight: 700;
	cursor: pointer;
	white-space: nowrap;
	transition: transform .22s, box-shadow .22s, background .22s, color .22s, border-color .22s;
}

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

.ac-btn-primary {
	background: var(--ac-grad);
	color: #fff;
	box-shadow: 0 14px 30px rgba(15, 118, 110, .28);
}

.ac-btn-primary:hover {
	transform: translateY(-2px);
	box-shadow: 0 20px 40px rgba(15, 118, 110, .34);
}

.ac-btn-yellow {
	background: var(--ac-yellow);
	color: #3a3206;
	box-shadow: 0 14px 28px rgba(250, 204, 21, .34);
}

.ac-btn-yellow:hover {
	transform: translateY(-2px);
}

.ac-btn-ghost {
	background: #fff;
	border-color: var(--ac-line);
	color: var(--ac-teal);
}

.ac-btn-ghost:hover {
	border-color: rgba(15, 118, 110, .45);
	transform: translateY(-2px);
}

.ac-btn-sm {
	padding: 10px 18px;
	font-size: 14px;
	border-radius: 10px;
}

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

/* --------------------------------------------------------------- 首屏 */
.ac-hero {
	position: relative;
	padding: 60px 0 78px;
	background:
		radial-gradient(760px 400px at 12% 0%, rgba(250, 204, 21, .22), transparent 62%),
		radial-gradient(620px 380px at 92% 88%, rgba(15, 118, 110, .14), transparent 66%),
		linear-gradient(180deg, #f4fbf9 0%, #ffffff 76%);
	overflow: hidden;
}

.ac-hero::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(15, 118, 110, .14) 1px, transparent 1px);
	background-size: 24px 24px;
	mask-image: radial-gradient(circle at 18% 18%, #000 0%, transparent 58%);
	-webkit-mask-image: radial-gradient(circle at 18% 18%, #000 0%, transparent 58%);
	pointer-events: none;
}

.ac-hero-inner {
	position: relative;
	z-index: 2;
	display: grid;
	grid-template-columns: 1.06fr .94fr;
	gap: 48px;
	align-items: center;
}

.ac-hero-visual,
.ac-hero-copy {
	min-width: 0;
}

.ac-badge {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 7px 15px 7px 12px;
	margin: 0 0 20px;
	border: 1px solid rgba(15, 118, 110, .24);
	border-radius: 999px;
	background: rgba(255, 255, 255, .86);
	color: var(--ac-teal);
	font-size: 13.5px;
	font-weight: 600;
}

.ac-dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--ac-teal);
	box-shadow: 0 0 0 4px rgba(15, 118, 110, .16);
	animation: ac-pulse 2.6s infinite;
}

.ac-hero h1 {
	font-size: 44px;
	line-height: 1.2;
	margin-bottom: 16px;
	letter-spacing: -.02em;
}

.ac-h1-accent {
	display: block;
	background: var(--ac-grad);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	color: transparent;
}

.ac-lead {
	color: var(--ac-muted);
	font-size: 16.5px;
}

.ac-lead strong {
	color: var(--ac-ink);
}

.ac-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 13px;
	margin: 24px 0 22px;
}

.ac-hero-points {
	display: flex;
	flex-wrap: wrap;
	gap: 10px 22px;
}

.ac-hero-points li {
	position: relative;
	padding-left: 24px;
	color: var(--ac-muted);
	font-size: 14px;
}

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

.ac-hero-points 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);
}

/* 首屏左侧：软件信息卡 */
.ac-card {
	position: relative;
	padding: 26px 26px 22px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: 22px;
	box-shadow: var(--ac-shadow);
}

.ac-card::before {
	content: "软件信息";
	position: absolute;
	top: -12px;
	left: 24px;
	padding: 3px 12px;
	border-radius: 999px;
	background: var(--ac-grad);
	color: #fff;
	font-size: 12px;
	font-weight: 700;
}

.ac-card-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 16px;
}

.ac-card-head h2 {
	margin: 0;
	font-size: 21px;
}

.ac-card-head span {
	padding: 4px 10px;
	border-radius: 8px;
	background: var(--ac-soft);
	color: var(--ac-teal);
	font-size: 12.5px;
	font-weight: 700;
}

.ac-card-btns {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
	margin-bottom: 16px;
}

.ac-spec {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 10px 14px;
	padding-top: 14px;
	border-top: 1px dashed var(--ac-line);
}

.ac-spec div {
	min-width: 0;
}

.ac-spec span {
	display: block;
	color: var(--ac-muted);
	font-size: 12.5px;
}

.ac-spec strong {
	display: block;
	color: var(--ac-ink);
	font-size: 14.5px;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.ac-shot {
	margin-top: 18px;
	border-radius: 18px;
	overflow: hidden;
	box-shadow: var(--ac-shadow);
}

.ac-shot img {
	width: 100%;
	height: 210px;
	object-fit: cover;
}

/* 平台条 */
.ac-strip {
	margin-top: 44px;
}

.ac-strip-inner {
	display: grid;
	grid-template-columns: repeat(6, minmax(0, 1fr));
	gap: 12px;
	padding: 18px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: 18px;
	box-shadow: 0 14px 32px rgba(10, 70, 66, .06);
}

.ac-chip {
	display: flex;
	align-items: center;
	gap: 9px;
	padding: 10px 12px;
	border-radius: 12px;
	background: var(--ac-soft);
	color: #2c4a46;
	font-size: 13.5px;
	transition: background .2s, transform .2s;
}

.ac-chip:hover {
	background: #eafaf6;
	transform: translateY(-2px);
}

.ac-chip svg {
	width: 18px;
	height: 18px;
	fill: var(--ac-teal);
	flex: 0 0 auto;
}

/* ------------------------------------------------------------- 数据条 */
.ac-stats {
	padding: 46px 0 0;
}

.ac-stats-inner {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: 18px;
	box-shadow: 0 14px 32px rgba(10, 70, 66, .06);
	overflow: hidden;
}

.ac-stat {
	padding: 24px 20px;
	text-align: center;
	border-right: 1px solid var(--ac-line);
}

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

.ac-stat strong {
	display: block;
	font-size: 30px;
	line-height: 1.15;
	background: var(--ac-grad);
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	font-variant-numeric: tabular-nums;
}

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

/* --------------------------------------------------------- 通用区块 */
.ac-section {
	padding: 82px 0;
}

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

.ac-section.dark {
	position: relative;
	background: var(--ac-ink);
	color: #d3ddf5;
	overflow: hidden;
}

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

.ac-head {
	max-width: 780px;
	margin: 0 auto 46px;
	text-align: center;
}

.ac-kicker {
	display: inline-block;
	margin-bottom: 13px;
	padding: 6px 14px;
	border-radius: 999px;
	background: var(--ac-grad-soft);
	color: var(--ac-teal);
	font-size: 12.5px;
	font-weight: 700;
	letter-spacing: 1.4px;
}

.ac-section.dark .ac-kicker {
	background: rgba(250, 204, 21, .16);
	color: #c6f432;
}

.ac-head h2 {
	font-size: 32px;
	margin-bottom: 12px;
}

.ac-head p {
	margin: 0;
	color: var(--ac-muted);
}

.ac-section.dark .ac-head p {
	color: rgba(226, 244, 240, .76);
}

.ac-reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1);
}

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

/* ------------------------------------------------------------ 软件介绍 */
.ac-about {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 44px;
	align-items: center;
}

.ac-about-media {
	position: relative;
	border-radius: 22px;
	overflow: hidden;
	box-shadow: var(--ac-shadow);
}

.ac-about-media img {
	width: 100%;
	height: 360px;
	object-fit: cover;
}

.ac-about-media .ac-tag {
	position: absolute;
	top: 18px;
	left: 18px;
	padding: 7px 14px;
	border-radius: 999px;
	background: rgba(255, 255, 255, .94);
	color: var(--ac-teal);
	font-size: 13px;
	font-weight: 700;
}

.ac-about-body h3 {
	font-size: 26px;
	margin-bottom: 12px;
}

.ac-about-body p {
	color: var(--ac-muted);
}

.ac-list {
	display: flex;
	flex-direction: column;
	gap: 12px;
	margin-top: 18px;
}

.ac-list li {
	position: relative;
	padding-left: 30px;
	color: var(--ac-muted);
	font-size: 14.5px;
}

.ac-list li strong {
	display: block;
	color: var(--ac-ink);
	font-size: 15px;
}

.ac-list li::before {
	content: "";
	position: absolute;
	left: 0;
	top: 3px;
	width: 20px;
	height: 20px;
	border-radius: 7px;
	background: var(--ac-grad);
}

.ac-list li::after {
	content: "";
	position: absolute;
	left: 6px;
	top: 8px;
	width: 8px;
	height: 4px;
	border-left: 1.8px solid #fff;
	border-bottom: 1.8px solid #fff;
	transform: rotate(-45deg);
}

/* ------------------------------------------------------------ 功能网格 */
.ac-features {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 18px;
}

.ac-feature {
	padding: 26px 22px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: var(--ac-radius);
	box-shadow: 0 12px 28px rgba(10, 70, 66, .05);
	transition: transform .26s, border-color .26s, box-shadow .26s;
}

.ac-feature:hover {
	transform: translateY(-5px);
	border-color: rgba(15, 118, 110, .42);
	box-shadow: var(--ac-shadow);
}

.ac-ico {
	display: grid;
	place-items: center;
	width: 48px;
	height: 48px;
	margin-bottom: 16px;
	border-radius: 14px;
	background: var(--ac-grad);
	box-shadow: 0 12px 24px rgba(15, 118, 110, .24);
}

.ac-ico svg {
	width: 24px;
	height: 24px;
	stroke: #fff;
	fill: none;
	stroke-width: 1.9;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.ac-feature h3 {
	font-size: 17px;
	margin-bottom: 8px;
}

.ac-feature p {
	margin: 0;
	color: var(--ac-muted);
	font-size: 14px;
}

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

.ac-dl {
	display: flex;
	flex-direction: column;
	padding: 24px 22px 22px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: var(--ac-radius);
	box-shadow: 0 12px 30px rgba(10, 70, 66, .05);
	transition: transform .26s, border-color .26s, box-shadow .26s;
}

.ac-dl:hover {
	transform: translateY(-5px);
	border-color: rgba(15, 118, 110, .4);
	box-shadow: var(--ac-shadow);
}

.ac-dl.primary {
	border-color: rgba(15, 118, 110, .42);
	box-shadow: 0 20px 44px rgba(15, 118, 110, .14);
}

.ac-dl-top {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 14px;
}

.ac-os {
	display: grid;
	place-items: center;
	width: 44px;
	height: 44px;
	border-radius: 12px;
	background: var(--ac-soft);
	border: 1px solid var(--ac-line);
}

.ac-os svg {
	width: 22px;
	height: 22px;
	fill: var(--ac-teal);
}

.ac-dl-top h3 {
	font-size: 17.5px;
	margin: 0;
}

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

.ac-dl-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0 0 14px;
}

.ac-tagchip {
	padding: 4px 10px;
	border-radius: 8px;
	background: var(--ac-soft);
	border: 1px solid var(--ac-line);
	color: #3d6660;
	font-size: 12px;
}

.ac-dl p {
	margin: 0 0 16px;
	color: var(--ac-muted);
	font-size: 13.5px;
}

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

.ac-dl-note {
	margin-top: 22px;
	padding: 18px 22px;
	border: 1px dashed rgba(15, 118, 110, .34);
	border-radius: 16px;
	background: #fff;
	color: var(--ac-muted);
	font-size: 14px;
}

.ac-dl-note strong {
	color: var(--ac-ink);
}

/* ------------------------------------------------------------ 系统要求 */
.ac-vers {
	margin: 0 0 16px;
	padding: 14px 0 0;
	border-top: 1px dashed var(--ac-line);
}

.ac-vers-title {
	display: block;
	margin-bottom: 8px;
	color: var(--ac-muted);
	font-size: 12.5px;
}

.ac-vers ul {
	display: flex;
	flex-direction: column;
	gap: 7px;
}

.ac-vers li {
	position: relative;
	padding-left: 20px;
	color: #2c4a46;
	font-size: 13px;
}

.ac-vers li::before {
	content: "";
	position: absolute;
	left: 2px;
	top: 8px;
	width: 7px;
	height: 7px;
	border-radius: 2px;
	background: var(--ac-teal);
}

.ac-history {
	display: grid;
	grid-template-columns: 130px 150px 1fr 130px;
	border: 1px solid var(--ac-line);
	border-radius: var(--ac-radius);
	background: #fff;
	overflow: hidden;
	box-shadow: 0 12px 30px rgba(10, 70, 66, .06);
}

.ac-history > div {
	padding: 15px 20px;
	border-bottom: 1px solid var(--ac-line);
	border-right: 1px solid var(--ac-line);
	font-size: 14.5px;
	color: var(--ac-muted);
}

.ac-history > div:nth-child(4n) {
	border-right: 0;
}

.ac-history > div:nth-last-child(-n+4) {
	border-bottom: 0;
}

.ac-history .ac-h-head {
	background: #f7f5ff;
	color: var(--ac-text);
	font-weight: 700;
}

.ac-history .ac-h-ver {
	color: var(--ac-text);
	font-weight: 700;
	font-variant-numeric: tabular-nums;
}

.ac-history .ac-h-cur {
	display: inline-block;
	padding: 2px 9px;
	border-radius: 999px;
	background: var(--ac-yellow);
	color: #3a3206;
	font-size: 12px;
	font-weight: 800;
}

.ac-spec-table {
	display: grid;
	grid-template-columns: 200px 1fr 1fr;
	border: 1px solid var(--ac-line);
	border-radius: var(--ac-radius);
	background: #fff;
	overflow: hidden;
	box-shadow: 0 12px 30px rgba(10, 70, 66, .05);
}

.ac-spec-table > div {
	padding: 16px 20px;
	border-bottom: 1px solid var(--ac-line);
	border-right: 1px solid var(--ac-line);
	font-size: 14.5px;
	color: var(--ac-muted);
}

.ac-spec-table > div:nth-child(3n) {
	border-right: 0;
}

.ac-spec-table > div:nth-last-child(-n+3) {
	border-bottom: 0;
}

.ac-spec-table .ac-spec-h {
	background: #f6f9ff;
	color: var(--ac-ink);
	font-weight: 700;
}

.ac-spec-table .ac-spec-k {
	background: #fbfdff;
	color: var(--ac-ink);
	font-weight: 600;
}

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

.ac-step {
	position: relative;
	padding: 30px 24px 26px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: var(--ac-radius);
	box-shadow: 0 12px 28px rgba(10, 70, 66, .05);
}

.ac-step::before {
	content: "";
	position: absolute;
	top: 42px;
	right: -26px;
	width: 26px;
	height: 2px;
	background: repeating-linear-gradient(90deg, rgba(15, 118, 110, .45) 0 6px, transparent 6px 12px);
}

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

.ac-step-dot {
	display: grid;
	place-items: center;
	width: 42px;
	height: 42px;
	margin-bottom: 14px;
	border-radius: 50%;
	background: var(--ac-grad);
	color: #fff;
	font-weight: 800;
	font-size: 16px;
	box-shadow: 0 12px 24px rgba(15, 118, 110, .24);
}

.ac-step h3 {
	font-size: 18px;
	margin-bottom: 8px;
}

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

/* ------------------------------------------------------------ 节点线路 */
.ac-net-bg {
	position: absolute;
	inset: 0;
	background-image: url("img/ac-net-bg.webp");
	background-size: cover;
	background-position: center;
	opacity: .28;
}

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

.ac-net {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 16px 26px;
}

.ac-region {
	padding: 16px 18px;
	border-radius: 14px;
	background: rgba(255, 255, 255, .05);
	border: 1px solid rgba(250, 204, 21, .18);
}

.ac-region-head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 9px;
}

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

.ac-region-head em {
	font-style: normal;
	color: #c6f432;
	font-size: 13.5px;
	font-variant-numeric: tabular-nums;
}

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

.ac-bar i {
	display: block;
	height: 100%;
	border-radius: 6px;
	background: linear-gradient(90deg, #2dd4bf, #38bdf8);
}

.ac-net-note {
	margin-top: 26px;
	padding: 18px 22px;
	border-radius: 14px;
	background: rgba(255, 255, 255, .05);
	border: 1px solid rgba(250, 204, 21, .16);
	color: rgba(226, 244, 240, .78);
	font-size: 14px;
}

/* ------------------------------------------------------------ 使用场景 */
.ac-scenes {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 20px;
}

.ac-scene {
	position: relative;
	display: block;
	border-radius: var(--ac-radius);
	overflow: hidden;
	box-shadow: 0 14px 32px rgba(10, 70, 66, .1);
}

.ac-scene img {
	width: 100%;
	height: 230px;
	object-fit: cover;
	transition: transform .6s cubic-bezier(.2, .7, .2, 1);
}

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

.ac-scene-body {
	position: absolute;
	inset: auto 0 0 0;
	padding: 46px 20px 18px;
	background: linear-gradient(180deg, transparent, rgba(6, 34, 32, .92));
	color: #fff;
}

.ac-scene-body h3 {
	color: #fff;
	font-size: 17px;
	margin-bottom: 5px;
}

.ac-scene-body p {
	margin: 0;
	color: rgba(232, 248, 244, .8);
	font-size: 13.5px;
}

/* ------------------------------------------------------------ 更新记录 */
.ac-logs {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 20px;
}

.ac-log {
	position: relative;
	padding: 26px 24px;
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: var(--ac-radius);
	box-shadow: 0 12px 28px rgba(10, 70, 66, .05);
}

.ac-log::before {
	content: "";
	position: absolute;
	top: 30px;
	left: 0;
	width: 4px;
	height: 30px;
	border-radius: 0 4px 4px 0;
	background: var(--ac-grad);
}

.ac-log-date {
	display: inline-block;
	margin-bottom: 10px;
	padding: 3px 10px;
	border-radius: 8px;
	background: var(--ac-soft);
	color: var(--ac-teal);
	font-size: 12.5px;
	font-weight: 700;
	font-variant-numeric: tabular-nums;
}

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

.ac-log p {
	margin: 0;
	color: var(--ac-muted);
	font-size: 14px;
}

/* ------------------------------------------------------------ 常见问题 */
.ac-faq {
	display: flex;
	flex-direction: column;
	gap: 12px;
	max-width: 900px;
	margin: 0 auto;
}

.ac-faq-item {
	background: #fff;
	border: 1px solid var(--ac-line);
	border-radius: 14px;
	overflow: hidden;
	transition: border-color .24s, box-shadow .24s;
}

.ac-faq-item[open] {
	border-color: rgba(15, 118, 110, .4);
	box-shadow: 0 14px 30px rgba(15, 118, 110, .1);
}

.ac-faq-q {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 17px 22px;
	cursor: pointer;
	list-style: none;
	font-size: 15.5px;
	font-weight: 700;
	color: var(--ac-ink);
}

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

.ac-faq-idx {
	flex: 0 0 auto;
	display: grid;
	place-items: center;
	width: 30px;
	height: 30px;
	border-radius: 9px;
	background: var(--ac-grad-soft);
	color: var(--ac-teal);
	font-size: 12.5px;
	font-weight: 800;
}

.ac-faq-t {
	flex: 1 1 auto;
	min-width: 0;
}

.ac-faq-a {
	padding: 0 22px 20px 66px;
}

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

/* --------------------------------------------------- 友情链接（极简一行） */
.ac-flinks {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 4px 16px;
	padding: 22px 0 0;
	margin: 0 auto;
	max-width: 1180px;
	color: var(--ac-muted);
	font-size: 14px;
	line-height: 1.9;
}

.ac-flinks-label {
	font-weight: 700;
	color: var(--ac-ink);
}

.ac-flink {
	color: #48726c;
	transition: color .2s;
}

.ac-flink:hover {
	color: var(--ac-teal);
	text-decoration: underline;
}

.ac-flinks-empty {
	color: #9db8b3;
}

/* ------------------------------------------------------------- 结尾 CTA */
.ac-cta {
	position: relative;
	padding: 56px 44px;
	border-radius: 24px;
	background:
		radial-gradient(620px 300px at 86% 12%, rgba(250, 204, 21, .28), transparent 64%),
		linear-gradient(126deg, #0b5b55, #0f766e 62%, #14b8a6);
	color: #fff;
	text-align: center;
	overflow: hidden;
}

.ac-cta h2 {
	color: #fff;
	font-size: 30px;
	margin-bottom: 12px;
}

.ac-cta p {
	max-width: 700px;
	margin: 0 auto 26px;
	color: rgba(232, 250, 244, .88);
}

.ac-cta-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 13px;
	justify-content: center;
}

.ac-cta-hint {
	margin: 18px 0 0;
	color: rgba(224, 244, 238, .74);
	font-size: 13px;
}

/* --------------------------------------------------------------- 页脚 */
.ac-footer {
	padding: 54px 0 24px;
	background: #08201f;
	color: rgba(214, 238, 232, .72);
	font-size: 14px;
}

.ac-footer-grid {
	display: grid;
	grid-template-columns: 1.5fr 1fr 1fr;
	gap: 36px;
	padding-bottom: 28px;
	border-bottom: 1px solid rgba(250, 204, 21, .16);
}

.ac-footer .ac-brand-text strong {
	color: #fff;
}

.ac-footer-desc {
	max-width: 380px;
	margin: 14px 0 0;
	color: rgba(214, 238, 232, .64);
	font-size: 13.5px;
}

.ac-footer h4 {
	color: #fff;
	font-size: 15px;
	margin-bottom: 12px;
}

.ac-footer-links {
	display: flex;
	flex-direction: column;
	gap: 9px;
}

.ac-footer-links a {
	color: rgba(214, 238, 232, .7);
	font-size: 13.5px;
}

.ac-footer-links a:hover {
	color: #c6f432;
}

.ac-footer-bottom {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	justify-content: space-between;
	padding-top: 20px;
	color: rgba(200, 230, 224, .5);
	font-size: 12.5px;
}

.ac-disclaimer {
	margin-top: 12px;
	color: rgba(190, 222, 216, .46);
	font-size: 12.5px;
	line-height: 1.8;
}

/* --------------------------------------------------------------- 动画 */
@keyframes ac-needle {
	0%, 100% { transform: rotate(-42deg); }
	50% { transform: rotate(38deg); }
}

@keyframes ac-pulse {
	0%, 100% { box-shadow: 0 0 0 4px rgba(15, 118, 110, .16); }
	50% { box-shadow: 0 0 0 8px rgba(15, 118, 110, .06); }
}

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

/* --------------------------------------------------------------- 响应式 */
@media (max-width: 1080px) {
	.ac-hero h1 { font-size: 38px; }
	.ac-hero-inner { gap: 34px; }
	.ac-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.ac-dl-grid, .ac-scenes, .ac-logs, .ac-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.ac-step::before { display: none; }
	.ac-strip-inner { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
	.ac-downloadbar {
		position: fixed;
		left: 0;
		right: 0;
		bottom: 0;
		z-index: 70;
		display: flex;
		align-items: center;
		gap: 12px;
		padding: 10px 16px;
		background: rgba(255, 255, 255, .96);
		backdrop-filter: blur(10px);
		border-top: 1px solid var(--ac-line);
		box-shadow: 0 -10px 30px rgba(10, 70, 66, .1);
	}
	.ac-downloadbar-info {
		display: flex;
		flex-direction: column;
		line-height: 1.25;
		min-width: 0;
	}
	.ac-downloadbar-info b {
		color: var(--ac-text);
		font-size: 14px;
	}
	.ac-downloadbar-info span {
		color: var(--ac-muted);
		font-size: 11.5px;
		white-space: nowrap;
		overflow: hidden;
		text-overflow: ellipsis;
	}
	.ac-downloadbar .ac-btn {
		margin-left: auto;
		padding: 11px 18px;
		font-size: 14px;
		border-radius: 10px;
	}
	.ac-footer {
		padding-bottom: 76px;
	}
	.ac-nav {
		position: absolute;
		top: 100%;
		left: 12px;
		right: 12px;
		display: none;
		flex-direction: column;
		align-items: stretch;
		gap: 2px;
		padding: 12px;
		border: 1px solid var(--ac-line);
		border-radius: 14px;
		background: #fff;
		box-shadow: 0 24px 50px rgba(10, 70, 66, .14);
	}
	.ac-nav.is-open { display: flex; }
	.ac-nav a { padding: 12px 14px; }
	.ac-burger { display: block; }
	.ac-header-cta .ac-btn { display: none; }
	.ac-hero { padding: 40px 0 60px; }
	.ac-hero-inner { grid-template-columns: 1fr; }
	.ac-hero-copy { order: 1; }
	.ac-hero-visual { order: 2; }
	.ac-about { grid-template-columns: 1fr; gap: 28px; }
	.ac-about-media img { height: 260px; }
	.ac-net { grid-template-columns: 1fr; }
	.ac-history { grid-template-columns: 110px 1fr auto; }
	.ac-history > div { padding: 13px 16px; font-size: 13.5px; }
	.ac-history > div:nth-child(4n+2) { display: none; }
	.ac-history > div:nth-child(4n) { border-right: 0; }
	.ac-history > div:nth-last-child(-n+8) { border-bottom: 1px solid var(--ac-line); }
	.ac-history > div:nth-last-child(-n+3) { border-bottom: 0; }
	.ac-spec-table { grid-template-columns: 150px 1fr 1fr; }
	.ac-spec-table > div { padding: 14px 16px; font-size: 13.5px; }
	.ac-cards, .ac-dl-grid, .ac-scenes, .ac-logs, .ac-steps { grid-template-columns: 1fr; }
	.ac-stats-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.ac-stat:nth-child(2) { border-right: 0; }
	.ac-stat { border-bottom: 1px solid var(--ac-line); }
	.ac-cta { padding: 42px 24px; }
	.ac-footer-grid { grid-template-columns: 1fr; gap: 22px; }
	.ac-head h2 { font-size: 26px; }
	.ac-section { padding: 60px 0; }
	.ac-faq-a { padding-left: 22px; }
}

@media (max-width: 640px) {
	.ac-container { padding: 0 18px; }
	.ac-client-body { grid-template-columns: 1fr; }
	.ac-client-side {
		flex-direction: row;
		overflow-x: auto;
		gap: 6px;
		padding: 10px;
		border-right: 0;
		border-bottom: 1px solid var(--ac-line);
	}
	.ac-client-side span { white-space: nowrap; padding: 6px 10px; }
	.ac-client-main { padding: 14px 14px 12px; }
	.ac-client-nodes {
		display: grid;
		grid-template-columns: 1fr 1fr;
		gap: 2px 8px;
		border-left: 0;
		border-top: 1px solid var(--ac-line);
	}
	.ac-client-nodes > b { grid-column: 1 / -1; }
	.ac-metrics { gap: 6px; }
	.ac-metrics div { padding: 8px; }
	.ac-metrics b { font-size: 15px; }
	.ac-graph { height: 42px; }
	.ac-btn-yellow { width: 100%; }
	.ac-hero h1 { font-size: 27px; }
	.ac-lead { font-size: 15.5px; }
	.ac-hero-actions .ac-btn { flex: 1 1 100%; }
	.ac-card-btns { grid-template-columns: 1fr; }
	.ac-strip-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.ac-features { grid-template-columns: 1fr; }
	.ac-shot img { height: 170px; }
	.ac-stat strong { font-size: 24px; }
	.ac-head h2 { font-size: 22px; }
	.ac-scene img { height: 190px; }
	.ac-cta h2 { font-size: 23px; }
	.ac-spec-table { grid-template-columns: 1fr; }
	.ac-spec-table > div { border-right: 0; }
	.ac-spec-table > div:nth-last-child(-n+3) { border-bottom: 1px solid var(--ac-line); }
	.ac-spec-table > div:last-child { border-bottom: 0; }
	.ac-flinks { justify-content: center; text-align: center; }
}