/* ==========================================================================
   SpineViewer 插件介绍网站样式
   - 品牌色取自插件图标（红），查看器演示区颜色取自 viewer/spine.html
   - 零外部依赖，可离线打开
   ========================================================================== */

:root {
	--bg: #131317;
	--bg-2: #17171c;
	--panel: #1c1c22;
	--panel-2: #24242c;
	--text: #e9e9ee;
	--text-dim: #9d9da8;
	--border: #2c2c35;
	--accent: #f2353b;
	--accent-2: #ff6a4d;
	--cyan: #4fc1ff;
	--card-shadow: 0 18px 40px rgba(0, 0, 0, .38);
}

html[data-theme="light"] {
	--bg: #f4f5f7;
	--bg-2: #ebedf0;
	--panel: #ffffff;
	--panel-2: #f1f2f4;
	--text: #1d1d22;
	--text-dim: #63636e;
	--border: #dcdee3;
	--accent: #e01f26;
	--accent-2: #ff5a3c;
	--cyan: #0078d4;
	--card-shadow: 0 16px 34px rgba(20, 20, 30, .10);
}

* { box-sizing: border-box; }

html {
	scroll-behavior: smooth;
	scroll-padding-top: 78px;
}

body {
	margin: 0;
	background-color: var(--bg);
	background-image:
		radial-gradient(900px 520px at 12% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 62%),
		radial-gradient(760px 460px at 88% 120px, color-mix(in srgb, var(--cyan) 10%, transparent), transparent 64%);
	background-repeat: no-repeat;
	color: var(--text);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
	font-size: 15px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

::selection { background: color-mix(in srgb, var(--accent) 38%, transparent); }

a { color: inherit; }

code {
	font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
	font-size: .86em;
	background: color-mix(in srgb, var(--panel-2) 82%, transparent);
	border: 1px solid var(--border);
	border-radius: 6px;
	padding: 1px 6px;
	white-space: nowrap;
}

kbd {
	font-family: inherit;
	font-size: .86em;
	font-weight: 700;
	background: var(--panel-2);
	border: 1px solid var(--border);
	border-bottom-width: 2px;
	border-radius: 6px;
	padding: 1px 7px;
}

:focus-visible {
	outline: 2px solid color-mix(in srgb, var(--cyan) 65%, transparent);
	outline-offset: 2px;
	border-radius: 6px;
}

.wrap {
	width: 100%;
	max-width: 1140px;
	margin: 0 auto;
	padding: 0 22px;
}

/* ---------- 顶栏 ---------- */

.topbar {
	position: sticky;
	top: 0;
	z-index: 50;
	background: color-mix(in srgb, var(--bg) 93%, transparent);
	border-bottom: 1px solid var(--border);
}

.topbar-inner {
	display: flex;
	align-items: center;
	gap: 18px;
	min-height: 62px;
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
	font-weight: 700;
	letter-spacing: -0.01em;
}

.brand img { border-radius: 8px; display: block; }

.brand-name { font-size: 16px; }

.brand-ver {
	font-size: 11.5px;
	font-weight: 600;
	color: var(--text-dim);
	border: 1px solid var(--border);
	border-radius: 999px;
	padding: 1px 9px;
}

.nav {
	margin-left: auto;
	display: flex;
	gap: 2px;
}

.nav a {
	text-decoration: none;
	color: var(--text-dim);
	font-size: 13.5px;
	padding: 8px 12px;
	border-radius: 8px;
	transition: color .15s, background .15s;
}

.nav a:hover { color: var(--text); background: var(--panel); }

.topbar-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn {
	width: 36px;
	height: 36px;
	display: grid;
	place-items: center;
	border-radius: 10px;
	border: 1px solid var(--border);
	background: var(--panel);
	color: var(--text-dim);
	cursor: pointer;
	transition: color .15s, border-color .15s;
}

.icon-btn:hover { color: var(--text); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }

.icon-btn svg {
	width: 18px;
	height: 18px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.7;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.icon-sun { display: none; }
.icon-moon { display: block; }
html[data-theme="dark"] .icon-sun { display: block; }
html[data-theme="dark"] .icon-moon { display: none; }

/* ---------- 按钮 ---------- */

.btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 11px 20px;
	border-radius: 11px;
	font-size: 14px;
	font-weight: 600;
	text-decoration: none;
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform .16s, box-shadow .16s, border-color .16s, background .16s;
	white-space: nowrap;
}

.btn-primary {
	background: linear-gradient(135deg, var(--accent), var(--accent-2));
	color: #fff;
	box-shadow: 0 10px 26px color-mix(in srgb, var(--accent) 30%, transparent);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 30px color-mix(in srgb, var(--accent) 38%, transparent); }

.btn-ghost {
	background: var(--panel);
	border-color: var(--border);
	color: var(--text);
}

.btn-ghost:hover { border-color: color-mix(in srgb, var(--cyan) 45%, var(--border)); transform: translateY(-1px); }

.btn-sm { padding: 8px 15px; font-size: 13px; border-radius: 9px; }

.link-arrow {
	color: var(--cyan);
	text-decoration: none;
	font-size: 14px;
	font-weight: 600;
}

.link-arrow:hover { text-decoration: underline; }

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

.hero { position: relative; padding: 70px 0 26px; overflow: hidden; }

.hero-glow {
	position: absolute;
	left: 50%;
	top: -140px;
	transform: translateX(-50%);
	width: min(1500px, 130vw);
	height: 620px;
	background:
		radial-gradient(560px 300px at 26% 34%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 66%),
		radial-gradient(520px 300px at 74% 26%, color-mix(in srgb, var(--cyan) 15%, transparent), transparent 68%);
	pointer-events: none;
}

.hero-grid {
	position: relative;
	display: grid;
	grid-template-columns: 1.02fr .98fr;
	gap: 48px;
	align-items: center;
}

.pill {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 7px 14px;
	border-radius: 999px;
	border: 1px solid var(--border);
	background: color-mix(in srgb, var(--panel) 72%, transparent);
	color: var(--text-dim);
	font-size: 12.5px;
}

.pill .dot {
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: #35d07f;
	box-shadow: 0 0 0 0 rgba(53, 208, 127, .5);
	animation: pulse 2.4s infinite;
}

@keyframes pulse {
	0% { box-shadow: 0 0 0 0 rgba(53, 208, 127, .45); }
	70% { box-shadow: 0 0 0 7px rgba(53, 208, 127, 0); }
	100% { box-shadow: 0 0 0 0 rgba(53, 208, 127, 0); }
}

.hero h1 {
	margin: 20px 0 16px;
	font-size: clamp(2.1rem, 4.1vw, 3.25rem);
	line-height: 1.14;
	letter-spacing: -0.022em;
	font-weight: 800;
}

.grad {
	background: linear-gradient(115deg, var(--accent), var(--accent-2) 42%, var(--cyan));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

.hero-sub {
	margin: 0;
	max-width: 560px;
	color: var(--text-dim);
	font-size: 15.5px;
	line-height: 1.8;
}

.hero-cta {
	display: flex;
	align-items: center;
	gap: 16px;
	flex-wrap: wrap;
	margin: 28px 0 32px;
}

.stats {
	list-style: none;
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 12px;
	padding: 0;
	margin: 0;
}

.stats li {
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: 13px 15px;
	border: 1px solid var(--border);
	border-radius: 13px;
	background: color-mix(in srgb, var(--panel) 74%, transparent);
}

.stats b {
	font-size: 21px;
	line-height: 1.1;
	letter-spacing: -0.02em;
	background: linear-gradient(120deg, var(--text), color-mix(in srgb, var(--cyan) 55%, var(--text)));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

.stats span { font-size: 11.5px; color: var(--text-dim); line-height: 1.55; }

.hero-visual { display: flex; flex-direction: column; }

.badge-chip {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-top: 14px;
	padding: 11px 14px;
	border: 1px dashed var(--border);
	border-radius: 12px;
	color: var(--text-dim);
	font-size: 12.5px;
	line-height: 1.6;
}

.badge-chip img { flex: none; border-radius: 5px; }

.file-chips {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	padding: 0;
	margin: 40px 0 0;
}

.chip {
	font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
	font-size: 12px;
	padding: 6px 13px;
	border-radius: 999px;
	border: 1px solid var(--border);
	background: var(--panel);
	color: var(--text-dim);
}

.chip-on {
	color: var(--cyan);
	border-color: color-mix(in srgb, var(--cyan) 38%, var(--border));
	background: color-mix(in srgb, var(--cyan) 9%, var(--panel));
}

.chip-off { border-style: dashed; font-family: inherit; }

/* ---------- 截图 ---------- */

.shot {
	margin: 0;
	border: 1px solid var(--border);
	border-radius: 14px;
	overflow: hidden;
	background: var(--panel);
	box-shadow: var(--card-shadow);
}

.shot img {
	display: block;
	width: 100%;
	height: auto;
}

.shot .zoomable { cursor: zoom-in; }

.shot figcaption {
	padding: 9px 14px;
	font-size: 12px;
	color: var(--text-dim);
	border-top: 1px solid var(--border);
	background: color-mix(in srgb, var(--panel) 90%, transparent);
	line-height: 1.6;
}

.shot-hero { position: relative; }

/* ---------- 通用区块 ---------- */

.section { padding: 86px 0; }

.section.alt {
	background: var(--bg-2);
	border-top: 1px solid var(--border);
	border-bottom: 1px solid var(--border);
}

.section-head { max-width: 740px; margin-bottom: 42px; }

.kicker {
	font-size: 11.5px;
	font-weight: 700;
	letter-spacing: .2em;
	color: var(--accent);
}

.section h2 {
	margin: 10px 0 12px;
	font-size: clamp(1.6rem, 3vw, 2.15rem);
	letter-spacing: -0.018em;
}

.section-lead {
	margin: 0;
	color: var(--text-dim);
	font-size: 15px;
	line-height: 1.8;
}

/* ---------- 功能特性 ---------- */

.features {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 16px;
}

.feature-card {
	padding: 22px;
	border: 1px solid var(--border);
	border-radius: 16px;
	background: var(--panel);
	transition: transform .18s, border-color .18s, box-shadow .18s;
}

.feature-card:hover {
	transform: translateY(-3px);
	border-color: color-mix(in srgb, var(--accent) 46%, var(--border));
	box-shadow: var(--card-shadow);
}

.f-icon {
	width: 40px;
	height: 40px;
	display: grid;
	place-items: center;
	margin-bottom: 16px;
	border-radius: 11px;
	border: 1px solid var(--border);
	background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 16%, var(--panel)), color-mix(in srgb, var(--cyan) 12%, var(--panel)));
	color: var(--accent);
}

html[data-theme="dark"] .f-icon { color: color-mix(in srgb, var(--accent) 80%, #fff); }

.f-icon svg {
	width: 20px;
	height: 20px;
	fill: none;
	stroke: currentColor;
	stroke-width: 1.7;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.feature-card h3 { margin: 0 0 9px; font-size: 16px; letter-spacing: -0.01em; }

.feature-card p {
	margin: 0;
	color: var(--text-dim);
	font-size: 13.8px;
	line-height: 1.75;
}

.chips {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	padding: 0;
	margin: 26px 0 0;
}

.chips li {
	padding: 7px 14px;
	border-radius: 999px;
	border: 1px solid var(--border);
	background: color-mix(in srgb, var(--panel) 80%, transparent);
	color: var(--text-dim);
	font-size: 12.5px;
}

/* ---------- 实际界面 ---------- */

.gallery { display: grid; gap: 16px; }

.crop-grid {
	display: grid;
	grid-template-columns: minmax(170px, 215px) 1fr;
	gap: 16px;
	align-items: start;
}

.crop.toolbar { grid-column: 1 / -1; }

.crop.animlist { grid-column: 1; }

.crop.timeline { grid-column: 2; }

.crop.animlist img {
	display: block;
	width: 100%;
	max-width: 128px;
	margin: 18px auto;
	box-shadow: 0 6px 18px rgba(0, 0, 0, .35);
	border-radius: 6px;
}

.crop.toolbar img, .crop.timeline img { border-radius: 6px; }

.demo-block { margin-top: 58px; }

.demo-head h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -0.01em; }

.demo-head p { margin: 0 0 20px; color: var(--text-dim); font-size: 14.5px; line-height: 1.75; max-width: 780px; }

/* ---------- 查看器界面复刻（配色与 viewer/spine.html 一致） ---------- */

.viewer {
	position: relative;
	height: 560px;
	overflow: hidden;
	border: 1px solid var(--v-border);
	border-radius: 14px;
	background: var(--v-bg);
	color: var(--v-text);
	font-size: 13px;
	box-shadow: var(--card-shadow);
	user-select: none;
	-webkit-user-select: none;
	outline: none;
	--v-bg: #1e1e1e;
	--v-panel: #252526;
	--v-panel-2: #2d2d30;
	--v-text: #e6e6e6;
	--v-dim: #9d9d9d;
	--v-accent: #4fc1ff;
	--v-border: #3c3c3c;
}

html[data-theme="light"] .viewer {
	--v-bg: #f3f4f6;
	--v-panel: #ffffff;
	--v-panel-2: #f0f0f0;
	--v-text: #1f1f1f;
	--v-dim: #6b6b6b;
	--v-accent: #0078d4;
	--v-border: #dcdcdc;
}

.v-toolbar {
	position: absolute;
	top: 12px;
	left: 12px;
	right: 12px;
	z-index: 10;
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
	padding: 8px 12px;
	border: 1px solid var(--v-border);
	border-radius: 8px;
	background: color-mix(in srgb, var(--v-panel) 97%, transparent);
	box-shadow: 0 5px 18px rgba(0, 0, 0, .25);
}

.v-field, .v-check {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	color: var(--v-dim);
	font-size: 12.5px;
	white-space: nowrap;
}

.v-check { cursor: pointer; }

.v-field select {
	background: var(--v-panel-2);
	color: var(--v-text);
	border: 1px solid var(--v-border);
	border-radius: 4px;
	padding: 4px 6px;
	font-size: 12.5px;
	font-family: inherit;
}

.v-field input[type="range"] { width: 108px; accent-color: var(--v-accent); }

.v-btn {
	background: var(--v-panel-2);
	color: var(--v-text);
	border: 1px solid var(--v-border);
	border-radius: 4px;
	padding: 5px 10px;
	font-size: 12.5px;
	font-family: inherit;
	cursor: pointer;
	white-space: nowrap;
	transition: background .15s;
}

.v-btn:hover { background: var(--v-border); }

.v-btn:disabled { opacity: .45; cursor: default; }

.v-icon { padding: 5px 9px; }

.v-spacer { flex: 1; }

.v-version { color: var(--v-dim); font-size: 12px; white-space: nowrap; }

.v-anim-panel {
	position: absolute;
	top: calc(22px + 46px);
	left: 12px;
	z-index: 9;
	display: flex;
	flex-direction: column;
	width: max-content;
	min-width: 128px;
	max-width: min(260px, 34vw);
	max-height: calc(100% - 46px - 68px - 56px);
	overflow: hidden;
	border: 1px solid var(--v-border);
	border-radius: 7px;
	background: color-mix(in srgb, var(--v-panel) 97%, transparent);
	box-shadow: 0 5px 18px rgba(0, 0, 0, .28);
}

.v-anim-title {
	padding: 8px 10px;
	color: var(--v-dim);
	font-size: 12px;
	border-bottom: 1px solid var(--v-border);
	flex: none;
}

.v-anim-list {
	overflow: auto;
	padding: 5px;
	scrollbar-width: thin;
	scrollbar-color: color-mix(in srgb, var(--v-dim) 58%, transparent) transparent;
}

.v-anim-list::-webkit-scrollbar { width: 8px; height: 8px; }

.v-anim-list::-webkit-scrollbar-thumb {
	min-height: 28px;
	border: 2px solid transparent;
	border-radius: 999px;
	background: color-mix(in srgb, var(--v-dim) 58%, transparent);
	background-clip: padding-box;
}

.v-anim-item {
	display: block;
	width: 100%;
	min-width: 116px;
	max-width: 248px;
	padding: 6px 8px;
	margin: 0 0 2px;
	border: 0;
	border-radius: 4px;
	background: transparent;
	color: var(--v-text);
	font-size: 12.5px;
	font-family: inherit;
	text-align: left;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	cursor: pointer;
}

.v-anim-item:hover { background: var(--v-panel-2); }

.v-anim-item.active {
	background: color-mix(in srgb, var(--v-accent) 20%, var(--v-panel));
	color: var(--v-accent);
	box-shadow: inset 3px 0 0 var(--v-accent);
}

.v-stage { position: absolute; inset: 0; overflow: hidden; cursor: grab; }

.v-stage.dragging { cursor: grabbing; }

.v-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.v-status {
	position: absolute;
	bottom: calc(22px + 68px);
	left: 12px;
	color: var(--v-dim);
	font-size: 12px;
	pointer-events: none;
	opacity: 0;
	transition: opacity .25s;
	text-shadow: 0 1px 2px rgba(0, 0, 0, .3);
}

.v-status.show { opacity: 1; }

.v-timeline {
	position: absolute;
	left: 12px;
	right: 12px;
	bottom: 12px;
	z-index: 10;
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 6px 12px;
	border: 1px solid var(--v-border);
	border-radius: 8px;
	background: color-mix(in srgb, var(--v-panel) 97%, transparent);
	box-shadow: 0 -4px 18px rgba(0, 0, 0, .22);
}

.v-tl-labels {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-self: stretch;
	min-width: 136px;
	padding: 8px 0 1px;
}

.v-tl-label { color: var(--v-dim); font-size: 12px; white-space: nowrap; }

.v-tl-legend {
	display: flex;
	align-items: center;
	gap: 6px;
	color: var(--v-dim);
	font-size: 11px;
	white-space: nowrap;
	cursor: help;
}

.v-tl-legend::before {
	content: "";
	width: 10px;
	height: 7px;
	border-radius: 1px;
	background: var(--v-accent);
	opacity: .7;
}

.v-track { position: relative; flex: 1; padding: 20px 0 0; min-width: 0; }

.v-track input[type="range"] {
	-webkit-appearance: none;
	appearance: none;
	display: block;
	width: 100%;
	height: 16px;
	margin: 0;
	background: transparent;
	cursor: pointer;
}

.v-track input[type="range"]::-webkit-slider-runnable-track {
	height: 4px;
	border-radius: 2px;
	background: color-mix(in srgb, var(--v-dim) 38%, transparent);
}

.v-track input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	width: 14px;
	height: 14px;
	margin-top: -5px;
	border: 0;
	border-radius: 50%;
	background: var(--v-accent);
	box-shadow: 0 0 0 4px color-mix(in srgb, var(--v-accent) 22%, transparent);
}

.v-track input[type="range"]::-moz-range-track {
	height: 4px;
	border-radius: 2px;
	background: color-mix(in srgb, var(--v-dim) 38%, transparent);
}

.v-track input[type="range"]::-moz-range-thumb {
	width: 14px;
	height: 14px;
	border: 0;
	border-radius: 50%;
	background: var(--v-accent);
}

.v-track input[type="range"]:disabled { opacity: .45; cursor: default; }

.v-ruler { position: absolute; top: 0; left: 7px; right: 7px; height: 19px; }

.v-ruler .tick {
	position: absolute;
	bottom: 0;
	width: 1px;
	height: 5px;
	background: var(--v-border);
	transform: translateX(-.5px);
}

.v-ruler .tick.major { height: 9px; background: var(--v-dim); }

.v-ruler .tick-label {
	position: absolute;
	bottom: 8px;
	color: var(--v-dim);
	font-size: 10px;
	font-variant-numeric: tabular-nums;
	transform: translateX(-50%);
	white-space: nowrap;
}

.v-ruler .tick-label.first { transform: none; }

.v-ruler .tick-label.last { transform: translateX(-100%); }

.v-keys { position: relative; height: 8px; margin-top: 2px; }

.v-keys span {
	position: absolute;
	top: 0;
	width: 3px;
	height: 8px;
	background: var(--v-accent);
	opacity: .62;
	transform: translateX(-1.5px);
	cursor: help;
	transition: opacity .12s, transform .12s;
}

.v-keys span:hover { opacity: 1; transform: translateX(-1.5px) scaleY(1.35); }

.v-readout {
	color: var(--v-dim);
	font-size: 12px;
	min-width: 178px;
	font-variant-numeric: tabular-nums;
	white-space: nowrap;
	text-align: right;
}

.demo-hint {
	margin: 14px 0 0;
	text-align: center;
	color: var(--text-dim);
	font-size: 12.5px;
}

/* ---------- 支持版本 ---------- */

.v-chips {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px;
	padding: 0;
	margin: 0 0 28px;
}

.v-chips li {
	padding: 8px 18px;
	border: 1px solid var(--border);
	border-radius: 11px;
	background: var(--panel);
	font-weight: 600;
	font-size: 14px;
	font-variant-numeric: tabular-nums;
}

.v-chips li.sep { border: 0; background: none; color: var(--text-dim); padding: 0; font-weight: 400; }

.v-table-wrap {
	overflow-x: auto;
	border: 1px solid var(--border);
	border-radius: 14px;
	background: var(--panel);
}

.v-table { width: 100%; min-width: 660px; border-collapse: collapse; font-size: 13.5px; }

.v-table th {
	text-align: left;
	padding: 13px 18px;
	font-size: 11.5px;
	font-weight: 600;
	letter-spacing: .1em;
	color: var(--text-dim);
	background: color-mix(in srgb, var(--panel-2) 70%, var(--panel));
	border-bottom: 1px solid var(--border);
}

.v-table td {
	padding: 15px 18px;
	border-bottom: 1px solid var(--border);
	line-height: 1.7;
	vertical-align: top;
	color: var(--text);
}

.v-table tr:last-child td { border-bottom: 0; }

.v-table td:first-child { white-space: nowrap; }

.v-note { margin: 14px 0 0; color: var(--text-dim); font-size: 13px; }

/* ---------- 工作流程 ---------- */

.steps {
	list-style: none;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 16px;
	padding: 0;
	margin: 0;
}

.step {
	padding: 22px;
	border: 1px solid var(--border);
	border-radius: 16px;
	background: var(--panel);
	position: relative;
}

.step-num { font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--accent); }

.step h3 { margin: 12px 0 8px; font-size: 15.5px; }

.step p { margin: 0; color: var(--text-dim); font-size: 13.5px; line-height: 1.75; }

/* ---------- 安装使用 ---------- */

.dl-cta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	flex-wrap: wrap;
	padding: 22px 24px;
	border: 1px solid var(--border);
	border-radius: 16px;
	background: var(--panel);
	text-decoration: none;
	color: var(--text);
	transition: transform .18s, border-color .18s, box-shadow .18s;
}

.dl-cta:hover {
	transform: translateY(-3px);
	border-color: color-mix(in srgb, var(--cyan) 50%, var(--border));
	box-shadow: var(--card-shadow);
}

.dl-cta-info { display: flex; flex-direction: column; gap: 7px; min-width: 0; }

.dl-cta strong { font-size: 16px; letter-spacing: -0.01em; }

.dl-os { font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--cyan); }

.dl-meta { font-size: 12.5px; color: var(--text-dim); }

.dl-note { margin: 16px 0 0; color: var(--text-dim); font-size: 12.5px; }

.install-steps {
	list-style: none;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 16px;
	padding: 0;
	margin: 34px 0 0;
}

.install-steps li {
	padding: 20px;
	border: 1px dashed var(--border);
	border-radius: 14px;
	background: color-mix(in srgb, var(--panel) 72%, transparent);
}

.install-steps h3 { margin: 0 0 8px; font-size: 14.5px; }

.install-steps p { margin: 0; color: var(--text-dim); font-size: 13px; line-height: 1.75; }

.callout {
	margin-top: 26px;
	padding: 18px 20px;
	border: 1px solid color-mix(in srgb, var(--cyan) 32%, var(--border));
	border-radius: 14px;
	background: color-mix(in srgb, var(--cyan) 7%, var(--panel));
}

.callout strong { display: block; margin-bottom: 6px; font-size: 14px; }

.callout p { margin: 0; color: var(--text-dim); font-size: 13.5px; line-height: 1.75; }

/* ---------- 常见问题 ---------- */

.faq { display: grid; gap: 12px; max-width: 880px; }

.faq details {
	border: 1px solid var(--border);
	border-radius: 14px;
	background: var(--panel);
	padding: 2px 20px;
	transition: border-color .2s;
}

.faq details[open] { border-color: color-mix(in srgb, var(--accent) 38%, var(--border)); }

.faq summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
	padding: 16px 0;
	font-size: 14.5px;
	font-weight: 600;
	cursor: pointer;
	list-style: none;
}

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

.faq summary::after {
	content: "+";
	font-size: 19px;
	font-weight: 400;
	color: var(--accent);
	transition: transform .2s;
	flex: none;
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq details p { margin: 0 0 18px; color: var(--text-dim); font-size: 13.5px; line-height: 1.8; }

.faq-contact { margin: 20px 0 0; color: var(--text-dim); font-size: 14px; }

.faq-contact a {
	color: var(--cyan);
	font-weight: 600;
	text-decoration: none;
}

.faq-contact a:hover { text-decoration: underline; }

/* ---------- 页脚 ---------- */

.footer {
	border-top: 1px solid var(--border);
	background: var(--bg-2);
	padding: 40px 0 46px;
}

.footer-inner { display: flex; align-items: center; }

.foot-brand { display: flex; align-items: center; gap: 12px; }

.foot-brand img { border-radius: 9px; }

.foot-brand strong { display: block; font-size: 15px; }

.foot-brand span { color: var(--text-dim); font-size: 12.5px; }

/* ---------- 图片放大 ---------- */

.lightbox {
	position: fixed;
	inset: 0;
	z-index: 100;
	display: grid;
	place-items: center;
	padding: 4vmin;
	background: rgba(8, 8, 11, .92);
	cursor: zoom-out;
	animation: fade .18s ease-out;
}

.lightbox[hidden] { display: none; }

.lightbox img {
	max-width: 94vw;
	max-height: 90vh;
	border-radius: 12px;
	border: 1px solid rgba(255, 255, 255, .18);
	box-shadow: 0 34px 90px rgba(0, 0, 0, .6);
}

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 滚动出现 ---------- */

.reveal {
	opacity: 0;
	transform: translateY(16px);
	transition: opacity .55s ease, transform .55s ease;
}

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

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.reveal { opacity: 1; transform: none; transition: none; }
	.pill .dot { animation: none; }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1020px) {
	.hero-grid { grid-template-columns: 1fr; gap: 36px; }
	.stats { grid-template-columns: repeat(2, 1fr); }
	.crop-grid { grid-template-columns: 1fr; }
	.crop.toolbar, .crop.animlist, .crop.timeline { grid-column: 1; }
	.crop.animlist img { max-width: 132px; }
}

@media (max-width: 880px) {
	.nav { display: none; }
	.topbar-actions { margin-left: auto; }
	.section { padding: 64px 0; }
	.viewer { height: 540px; }
}

@media (max-width: 720px) {
	.hero { padding-top: 52px; }
	.v-toolbar { top: 8px; left: 8px; right: 8px; gap: 8px; padding: 8px 10px; }
	.v-anim-panel {
		top: 152px;
		left: 8px;
		max-height: calc(100% - 152px - 96px);
	}
	.v-timeline { left: 8px; right: 8px; bottom: 8px; gap: 8px; padding: 6px 10px; }
	.v-tl-labels { min-width: 104px; }
	.v-readout { font-size: 11px; }
	.v-version { display: none; }
}

@media (max-width: 520px) {
	.wrap { padding: 0 16px; }
	.stats { grid-template-columns: 1fr 1fr; gap: 10px; }
	.brand-ver { display: none; }
	.viewer { height: 520px; }
	.v-tl-labels { min-width: 96px; }
	.v-tl-legend { font-size: 10px; }
	.v-readout { display: none; }
}