/* ==========================================================================
   Codex Skin Hub — 站点设计系统
   源自 a-5 原型(index.html / purchase.html),整合为单一样式表。
   ========================================================================== */

/* ------------------------------- 设计令牌 ------------------------------- */
:root {
	--pearl: #F7F8FF;
	--ink: #171A35;
	--violet: #7C5CFC;
	--mint: #4EDFD1;
	--pink: #FF78B9;
	--muted: #6E7191;
	--danger: #B42354;
	--line: rgba(23, 26, 53, .11);
	--shadow: 0 24px 60px rgba(61, 48, 120, .14);
	--radius: 22px;
	--page-bg: var(--pearl);
}

/* ------------------------------- 基础 ------------------------------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	margin: 0;
	min-width: 320px;
	color: var(--ink);
	background: var(--page-bg);
	font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
	line-height: 1.5;
	overflow-x: hidden;
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible { outline: 3px solid var(--violet); outline-offset: 3px; }

.shell { width: min(1180px, calc(100% - 40px)); margin: auto; }
.shell--narrow { width: min(1120px, calc(100% - 40px)); }

.eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	color: var(--violet);
	font-size: .75rem;
	font-weight: 800;
	letter-spacing: .12em;
	text-transform: uppercase;
}
.eyebrow::before {
	content: "";
	width: 9px;
	height: 9px;
	border-radius: 999px;
	background: var(--mint);
	box-shadow: 0 0 0 5px rgba(78, 223, 209, .16);
}

.section { padding: 88px 0; }
.section-head {
	display: flex;
	justify-content: space-between;
	align-items: end;
	gap: 24px;
	margin-bottom: 33px;
}
h2 {
	margin: 12px 0 0;
	max-width: 650px;
	font-size: clamp(2rem, 4vw, 3.35rem);
	line-height: 1.04;
	letter-spacing: -.055em;
}
.section-note { max-width: 370px; margin-bottom: 0; color: var(--muted); font-size: .95rem; }

.gradient-text {
	background: linear-gradient(100deg, var(--violet), var(--pink));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

/* ------------------------------- 按钮 ------------------------------- */
.button {
	border: 0;
	border-radius: 13px;
	display: inline-flex;
	justify-content: center;
	align-items: center;
	gap: 8px;
	min-height: 45px;
	padding: 0 17px;
	font-size: .9rem;
	font-weight: 800;
	transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--ink); box-shadow: 0 10px 20px rgba(23, 26, 53, .17); }
.button.primary:hover { background: var(--violet); box-shadow: 0 13px 25px rgba(124, 92, 252, .28); }
.button.secondary { color: var(--ink); background: #fff; border: 1px solid var(--line); }
.button.glow {
	color: #fff;
	background: linear-gradient(105deg, var(--violet), #966dff 55%, var(--pink));
	box-shadow: 0 12px 30px rgba(124, 92, 252, .32);
}
.button.ghost { color: var(--muted); background: transparent; }
.button.ghost:hover { color: var(--violet); }
.button.block { width: 100%; }

/* ------------------------------- 顶部导航 ------------------------------- */
.nav {
	min-height: 82px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 28px;
}
.brand {
	display: inline-flex;
	align-items: center;
	gap: 11px;
	font-weight: 850;
	letter-spacing: -.04em;
	white-space: nowrap;
}
.brand-mark {
	width: 35px;
	height: 35px;
	position: relative;
	flex: 0 0 auto;
	border-radius: 12px 12px 12px 5px;
	background: linear-gradient(135deg, var(--violet), var(--pink));
	box-shadow: 0 7px 16px rgba(124, 92, 252, .25);
}
.brand-mark::after {
	content: "⌁";
	position: absolute;
	color: #fff;
	left: 9px;
	top: 3px;
	font-size: 23px;
	font-weight: 500;
}
.nav-links {
	display: flex;
	gap: 25px;
	align-items: center;
	font-size: .9rem;
	color: var(--muted);
	font-weight: 700;
}
.nav-links a:hover { color: var(--violet); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

.lang {
	display: flex;
	padding: 3px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: rgba(255, 255, 255, .75);
}
.lang button {
	border: 0;
	background: transparent;
	color: var(--muted);
	padding: 5px 9px;
	border-radius: 999px;
	font-size: .73rem;
	font-weight: 800;
}
.lang button.active { background: var(--ink); color: #fff; }

.nav-account {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	max-width: 190px;
	padding: 7px 12px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: rgba(255, 255, 255, .8);
	color: var(--ink);
	font-size: .8rem;
	font-weight: 750;
}
.nav-account:hover { border-color: rgba(124, 92, 252, .45); color: var(--violet); }
.nav-account span:last-child {
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}
.nav-vip {
	padding: 3px 7px;
	border-radius: 999px;
	color: #bf397d;
	background: rgba(255, 120, 185, .16);
	font-size: .6rem;
	font-weight: 900;
	letter-spacing: .06em;
}

/* ------------------------------- Hero ------------------------------- */
.hero {
	position: relative;
	padding: 65px 0 96px;
	min-height: 590px;
	display: grid;
	grid-template-columns: .9fr 1.1fr;
	align-items: center;
	gap: 46px;
}
.hero::before {
	content: "";
	position: absolute;
	z-index: -2;
	width: 460px;
	height: 460px;
	left: -210px;
	top: -50px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(78, 223, 209, .24), rgba(78, 223, 209, 0) 68%);
}
.hero::after {
	content: "";
	position: absolute;
	z-index: -2;
	width: 500px;
	height: 470px;
	right: -220px;
	top: -85px;
	border-radius: 42% 58% 45% 55%;
	background: radial-gradient(circle at 40% 40%, rgba(255, 120, 185, .22), rgba(124, 92, 252, .08) 42%, transparent 70%);
	filter: blur(4px);
}
h1 {
	margin: 17px 0 20px;
	max-width: 570px;
	font-size: clamp(2.85rem, 6vw, 5.35rem);
	line-height: .98;
	letter-spacing: -.075em;
	font-weight: 900;
}
.hero-copy > p { max-width: 480px; color: var(--muted); font-size: 1.04rem; }
.hero-actions { display: flex; gap: 11px; flex-wrap: wrap; margin: 30px 0 22px; }

.download-options { display: flex; gap: 11px; flex-wrap: wrap; width: 100%; }
.download-option {
	position: relative;
	min-width: 190px;
	min-height: 58px;
	padding: 9px 16px;
	display: flex;
	align-items: center;
	gap: 11px;
	border: 1px solid var(--line);
	border-radius: 14px;
	color: var(--ink);
	background: rgba(255, 255, 255, .82);
	box-shadow: 0 8px 24px rgba(23, 26, 53, .07);
	text-align: left;
	transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.download-option:hover { transform: translateY(-2px); border-color: rgba(124, 92, 252, .45); }
.download-option.recommended {
	border-color: var(--violet);
	background: linear-gradient(135deg, rgba(124, 92, 252, .12), rgba(78, 223, 209, .12));
	box-shadow: 0 12px 30px rgba(124, 92, 252, .18);
}
.download-icon {
	width: 34px;
	height: 34px;
	flex: 0 0 auto;
	display: grid;
	place-items: center;
	border-radius: 10px;
	color: #fff;
	background: var(--ink);
	font-size: 1.1rem;
	font-weight: 900;
}
.download-copy { display: flex; flex-direction: column; gap: 2px; }
.download-copy strong { font-size: .86rem; }
.download-copy small { color: var(--muted); font-size: .69rem; }
.recommendation {
	display: none;
	position: absolute;
	right: 8px;
	top: -10px;
	padding: 3px 7px;
	border-radius: 999px;
	color: #fff;
	background: var(--violet);
	font-size: .58rem;
	font-weight: 900;
	letter-spacing: .05em;
}
.download-option.recommended .recommendation { display: block; }

.platform-row {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 18px;
	color: var(--muted);
	font-size: .81rem;
	font-weight: 700;
}
.platform-row span::before { content: "✓"; color: var(--mint); margin-right: 6px; font-weight: 900; }

/* --------------------------- Hero 应用预览窗口 --------------------------- */
.preview-wrap { position: relative; }
.preview-wrap::before {
	content: "";
	position: absolute;
	inset: 9% -8% -8% 15%;
	background: radial-gradient(ellipse, var(--preview-glow, rgba(124, 92, 252, .26)), transparent 67%);
	filter: blur(14px);
	z-index: -1;
}
.app-window {
	--accent: var(--violet);
	--secondary: var(--pink);
	position: relative;
	width: 100%;
	min-height: 390px;
	overflow: hidden;
	border: 8px solid rgba(255, 255, 255, .76);
	border-radius: 26px;
	background: linear-gradient(145deg, #262a51, #141630);
	box-shadow: 0 30px 55px rgba(23, 26, 53, .25), inset 0 1px rgba(255, 255, 255, .17);
	transition: background .45s ease;
}
.app-window::before {
	content: "";
	position: absolute;
	inset: 0;
	pointer-events: none;
	background: linear-gradient(110deg, rgba(255, 255, 255, .11), transparent 18% 73%, rgba(255, 255, 255, .08));
}
.window-bar {
	height: 43px;
	padding: 0 15px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	color: rgba(255, 255, 255, .72);
	background: rgba(5, 7, 20, .32);
	font-size: .72rem;
	font-weight: 800;
}
.traffic { display: flex; gap: 6px; }
.traffic i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, .45); }
.window-content { display: grid; grid-template-columns: 76px 1fr; min-height: 339px; }
.app-rail {
	padding: 17px 11px;
	background: rgba(0, 0, 0, .16);
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 16px;
}
.app-rail b {
	width: 30px;
	height: 30px;
	border-radius: 11px;
	display: grid;
	place-items: center;
	color: #fff;
	background: linear-gradient(135deg, var(--accent), var(--secondary));
	box-shadow: 0 6px 15px color-mix(in srgb, var(--accent) 43%, transparent);
}
.app-rail i { width: 25px; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .28); }
.app-rail i:nth-of-type(2) { width: 16px; background: var(--secondary); }
.app-main { position: relative; padding: 25px; overflow: hidden; }
.app-label {
	display: flex;
	align-items: center;
	justify-content: space-between;
	color: #fff;
	font-size: .76rem;
	font-weight: 800;
	letter-spacing: .08em;
	text-transform: uppercase;
}
.theme-chip {
	padding: 6px 9px;
	border-radius: 999px;
	color: #fff;
	background: rgba(255, 255, 255, .13);
	backdrop-filter: blur(8px);
	font-size: .66rem;
	letter-spacing: 0;
	text-transform: none;
}
.art {
	position: absolute;
	inset: 64px 22px 21px;
	overflow: hidden;
	border: 1px solid rgba(255, 255, 255, .16);
	border-radius: 17px;
	background:
		radial-gradient(circle at 77% 17%, var(--secondary), transparent 14%),
		radial-gradient(circle at 33% 32%, var(--accent), transparent 32%),
		linear-gradient(135deg, rgba(9, 12, 38, .05), rgba(8, 10, 28, .72));
}
.art::before {
	content: "";
	position: absolute;
	width: 260px;
	height: 260px;
	left: 4%;
	bottom: -112px;
	border: 32px solid color-mix(in srgb, var(--accent) 74%, white);
	border-radius: 50%;
	opacity: .68;
	box-shadow: 0 0 80px var(--accent);
}
.art::after {
	content: "✦  ✧  ·  ✦";
	position: absolute;
	right: 9%;
	top: 17%;
	color: rgba(255, 255, 255, .85);
	letter-spacing: 9px;
	font-size: 1.25rem;
	transform: rotate(-12deg);
}
.art-img {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: .92;
}
.art-copy { position: absolute; left: 21px; bottom: 19px; color: #fff; z-index: 1; }
.art-copy strong { display: block; font-size: clamp(1.25rem, 3.1vw, 2rem); letter-spacing: -.055em; }
.art-copy span { color: rgba(255, 255, 255, .7); font-size: .73rem; }

.preview-caption {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 14px 7px 0 15px;
	color: var(--muted);
	font-size: .78rem;
}
.preview-caption strong { color: var(--ink); }
.preview-status { display: flex; align-items: center; gap: 6px; }
.preview-status i {
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: var(--mint);
	box-shadow: 0 0 0 5px rgba(78, 223, 209, .16);
}

/* ------------------------------- 信任条 ------------------------------- */
.trust-strip {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1px;
	margin: -25px auto 0;
	overflow: hidden;
	border: 1px solid var(--line);
	border-radius: 18px;
	background: var(--line);
	box-shadow: 0 14px 35px rgba(35, 35, 80, .07);
}
.trust-stat { min-height: 104px; padding: 19px 22px; background: rgba(255, 255, 255, .94); }
.trust-stat strong { display: block; color: var(--violet); font-size: 1.45rem; letter-spacing: -.05em; }
.trust-stat span { display: block; margin-top: 4px; color: var(--muted); font-size: .8rem; font-weight: 750; }

/* ------------------------------- 定价区 ------------------------------- */
.purchase-showcase {
	display: grid;
	grid-template-columns: 1.05fr .95fr;
	align-items: center;
	gap: 24px;
	padding: 34px;
	border: 1px solid rgba(124, 92, 252, .22);
	border-radius: 24px;
	background: linear-gradient(120deg, rgba(124, 92, 252, .1), rgba(255, 255, 255, .94) 52%, rgba(78, 223, 209, .12));
	box-shadow: var(--shadow);
}
.purchase-showcase h2 { margin: 8px 0 10px; }
.purchase-showcase p { max-width: 570px; margin-bottom: 0; color: var(--muted); }

.price-card {
	padding: 25px;
	border-radius: 19px;
	color: #fff;
	background: var(--ink);
	box-shadow: 0 20px 34px rgba(23, 26, 53, .19);
}
.price-card small {
	display: block;
	color: var(--mint);
	font-size: .74rem;
	font-weight: 850;
	letter-spacing: .1em;
	text-transform: uppercase;
}
.price {
	margin: 8px 0 14px;
	font-size: clamp(2.3rem, 5vw, 3.5rem);
	font-weight: 900;
	letter-spacing: -.08em;
}
.price-card ul { margin: 0 0 21px; padding: 0; list-style: none; color: rgba(255, 255, 255, .76); font-size: .85rem; }
.price-card li + li { margin-top: 7px; }
.price-card li::before { content: "✓"; margin-right: 8px; color: var(--mint); }

/* ------------------------------- 体验示例 ------------------------------- */
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.testimonial {
	min-height: 185px;
	padding: 22px;
	border: 1px solid var(--line);
	border-radius: 18px;
	background: #fff;
	box-shadow: 0 10px 25px rgba(35, 35, 80, .05);
}
.testimonial-label {
	display: inline-block;
	margin-bottom: 16px;
	color: var(--violet);
	font-size: .7rem;
	font-weight: 900;
	letter-spacing: .08em;
	text-transform: uppercase;
}
.testimonial p { margin-bottom: 15px; font-size: .96rem; font-weight: 700; }
.testimonial cite { color: var(--muted); font-size: .78rem; font-style: normal; }

/* ------------------------------- 皮肤画廊 ------------------------------- */
.filter-bar {
	display: flex;
	flex-wrap: wrap;
	padding: 4px;
	gap: 3px;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: #fff;
}
.filter-bar button {
	border: 0;
	padding: 7px 13px;
	border-radius: 999px;
	color: var(--muted);
	background: transparent;
	font-size: .78rem;
	font-weight: 850;
	white-space: nowrap;
}
.filter-bar button.active { background: var(--ink); color: #fff; }

.skin-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.skin-card {
	--card-a: var(--violet);
	--card-b: var(--pink);
	min-width: 0;
	padding: 10px;
	border: 1px solid var(--line);
	border-radius: 18px;
	background: #fff;
	box-shadow: 0 8px 22px rgba(35, 35, 80, .04);
	transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.skin-card:hover,
.skin-card.selected {
	transform: translateY(-4px);
	border-color: color-mix(in srgb, var(--card-a) 55%, white);
	box-shadow: 0 16px 28px color-mix(in srgb, var(--card-a) 15%, transparent);
}
.skin-card[hidden] { display: none; }

.skin-cover {
	position: relative;
	height: 137px;
	overflow: hidden;
	border-radius: 12px;
	background:
		radial-gradient(circle at 72% 24%, var(--card-b), transparent 17%),
		radial-gradient(circle at 29% 70%, var(--card-a), transparent 40%),
		#25284b;
}
.skin-cover::before {
	content: "";
	position: absolute;
	width: 130px;
	height: 130px;
	left: 15%;
	bottom: -66px;
	border: 15px solid rgba(255, 255, 255, .57);
	border-radius: 50%;
	transform: rotate(22deg);
}
.skin-cover::after { content: "✦"; position: absolute; right: 18px; top: 14px; color: rgba(255, 255, 255, .9); font-size: 1.15rem; }
.skin-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.skin-cover.has-img::before,
.skin-cover.has-img::after { display: none; }

.skin-flag {
	position: absolute;
	left: 10px;
	top: 10px;
	z-index: 1;
	padding: 3px 8px;
	border-radius: 999px;
	color: var(--ink);
	background: rgba(255, 255, 255, .9);
	font-size: .6rem;
	font-weight: 900;
	letter-spacing: .06em;
	text-transform: uppercase;
}
.skin-info { padding: 12px 3px 3px; }
.skin-meta { display: flex; justify-content: space-between; align-items: start; gap: 4px; }
.skin-meta h3 { margin: 0; font-size: .95rem; letter-spacing: -.025em; }
.badge {
	flex: 0 0 auto;
	padding: 3px 6px;
	border-radius: 5px;
	color: var(--violet);
	background: rgba(124, 92, 252, .11);
	font-size: .61rem;
	font-weight: 900;
	letter-spacing: .06em;
}
.badge.vip { color: #bf397d; background: rgba(255, 120, 185, .16); }
.skin-info p { height: 37px; margin: 5px 0 10px; color: var(--muted); font-size: .75rem; line-height: 1.35; }
.skin-choose {
	width: 100%;
	min-height: 34px;
	border: 1px solid var(--line);
	border-radius: 8px;
	color: var(--ink);
	background: #fff;
	font-size: .74rem;
	font-weight: 800;
}
.skin-card.selected .skin-choose { border-color: var(--violet); color: var(--violet); }
.skin-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.skin-unlock {
	min-height: 34px;
	border: 0;
	border-radius: 8px;
	color: #fff;
	background: var(--ink);
	font-size: .74rem;
	font-weight: 800;
}
.skin-unlock:hover { background: var(--violet); }
a.skin-unlock { display: inline-flex; align-items: center; justify-content: center; }

.skin-empty {
	padding: 40px 20px;
	border: 1px dashed var(--line);
	border-radius: 18px;
	color: var(--muted);
	text-align: center;
}

/* ------------------------------- VIP 区块 ------------------------------- */
.vip-zone {
	position: relative;
	overflow: hidden;
	padding: 54px clamp(24px, 6vw, 72px);
	border-radius: 28px;
	color: #fff;
	background: linear-gradient(120deg, #242248, #373070 57%, #744f95);
	box-shadow: var(--shadow);
}
.vip-zone::before {
	content: "";
	position: absolute;
	width: 350px;
	height: 350px;
	right: -90px;
	top: -155px;
	border: 55px solid rgba(255, 255, 255, .11);
	border-radius: 45% 55% 57% 43%;
	transform: rotate(32deg);
}
.vip-zone::after {
	content: "✦  ·  ✧  ·  ✦";
	position: absolute;
	right: 5%;
	bottom: 17%;
	color: rgba(255, 255, 255, .23);
	letter-spacing: 10px;
	font-size: 1.5rem;
	transform: rotate(-13deg);
}
.vip-zone > * { position: relative; z-index: 1; }
.vip-zone .eyebrow { color: #ddd6ff; }
.vip-zone h2 { max-width: 590px; margin-top: 13px; }
.vip-zone p { max-width: 580px; color: rgba(255, 255, 255, .72); }
.vip-benefits {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	max-width: 690px;
	margin: 27px 0 31px;
	gap: 10px;
}
.benefit {
	padding: 12px;
	border: 1px solid rgba(255, 255, 255, .17);
	border-radius: 12px;
	background: rgba(255, 255, 255, .08);
	font-size: .8rem;
	font-weight: 750;
	backdrop-filter: blur(7px);
}
.benefit b { display: block; margin-bottom: 3px; color: var(--mint); font-size: 1.05rem; }

/* ------------------------------- 四步流程 ------------------------------- */
.workflow { background: linear-gradient(180deg, transparent, rgba(124, 92, 252, .055)); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; counter-reset: steps; }
.step { position: relative; padding: 22px 17px; border-top: 2px solid var(--ink); background: rgba(255, 255, 255, .58); }
.step::before {
	counter-increment: steps;
	content: "0" counter(steps);
	display: block;
	margin-bottom: 22px;
	color: var(--pink);
	font-size: .76rem;
	font-weight: 900;
	letter-spacing: .08em;
}
.step h3 { margin: 0 0 7px; font-size: 1rem; }
.step p { margin: 0; color: var(--muted); font-size: .8rem; }

/* ------------------------------- FAQ ------------------------------- */
.faq-list { display: grid; gap: 10px; }
.faq-list details { padding: 0 18px; border: 1px solid var(--line); border-radius: 13px; background: #fff; }
.faq-list summary { padding: 16px 30px 16px 0; cursor: pointer; font-size: .92rem; font-weight: 850; }
.faq-list p { margin: 0 0 16px; color: var(--muted); font-size: .88rem; }

/* ------------------------------- 页脚 ------------------------------- */
.site-footer { padding: 30px 0 42px; border-top: 1px solid var(--line); }
.footer-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 15px;
	color: var(--muted);
	font-size: .75rem;
}
.footer-links { display: flex; gap: 17px; font-weight: 700; }
.footer-links a:hover { color: var(--violet); }

/* ------------------------------- Toast ------------------------------- */
.toast {
	position: fixed;
	z-index: 25;
	bottom: 20px;
	left: 50%;
	padding: 11px 16px;
	border-radius: 999px;
	color: #fff;
	background: var(--ink);
	box-shadow: 0 12px 25px rgba(0, 0, 0, .2);
	font-size: .82rem;
	font-weight: 750;
	transform: translate(-50%, 80px);
	opacity: 0;
	transition: .25s ease;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }

/* ========================================================================
   支付页 (.page-purchase)
   ======================================================================== */
.page-purchase {
	--page-bg:
		radial-gradient(circle at 88% 8%, rgba(118, 87, 246, .15), transparent 29rem),
		radial-gradient(circle at 7% 95%, rgba(20, 188, 166, .13), transparent 23rem),
		#FFFDF8;
}
.page-purchase .site-header { border-bottom: 1px solid rgba(21, 35, 63, .09); }
.page-purchase main { padding: 60px 0 70px; }

.purchase-intro { max-width: 650px; margin-bottom: 30px; }
.purchase-intro .eyebrow { display: inline-flex; }
.purchase-intro h1 {
	max-width: 650px;
	margin: 8px 0 12px;
	font-size: clamp(2.2rem, 5vw, 4.25rem);
	line-height: 1.03;
	letter-spacing: -.065em;
}
.purchase-intro p { max-width: 550px; margin: 0; color: var(--muted); font-size: 1.06rem; }

.checkout-grid {
	display: grid;
	grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
	gap: 28px;
	align-items: start;
}
.panel {
	border: 1px solid rgba(21, 35, 63, .11);
	border-radius: 24px;
	background: rgba(255, 255, 255, .86);
	box-shadow: var(--shadow);
}
.form-panel { padding: clamp(24px, 4vw, 42px); }
.form-panel h2 { margin: 0 0 5px; font-size: 1.42rem; letter-spacing: -.04em; }
.panel-copy { margin: 0 0 27px; color: var(--muted); }

.field { margin: 0 0 22px; }
.field label { display: block; margin-bottom: 8px; font-weight: 800; }
.required { color: var(--danger); }
.field input[type="email"],
.field input[type="password"],
.field input[type="text"] {
	width: 100%;
	padding: 13px 14px;
	border: 1px solid #BDC7D9;
	border-radius: 12px;
	color: var(--ink);
	background: #fff;
	transition: border-color .2s, box-shadow .2s;
}
.field input:focus {
	border-color: var(--violet);
	box-shadow: 0 0 0 4px rgba(124, 92, 252, .12);
	outline: 0;
}
input[aria-invalid="true"] { border-color: var(--danger); background: #FFF7FA; }
.field-error { min-height: 1.35em; margin: 7px 0 0; color: var(--danger); font-size: .88rem; font-weight: 700; }

.terms-row {
	display: flex;
	gap: 11px;
	align-items: flex-start;
	padding: 13px;
	border: 1px solid transparent;
	border-radius: 12px;
}
.terms-row.has-error { border-color: #EF9BB9; background: #FFF7FA; }
.terms-row input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--violet); }
.terms-row label { margin: 0; font-size: .93rem; font-weight: 650; }
.terms-row a { color: var(--violet); }

.pay-button {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 100%;
	min-height: 52px;
	border: 0;
	border-radius: 13px;
	color: #fff;
	background: linear-gradient(105deg, var(--violet), #975CF6);
	box-shadow: 0 12px 22px rgba(118, 87, 246, .26);
	font-weight: 850;
	transition: transform .18s, box-shadow .18s;
}
.pay-button:hover { transform: translateY(-2px); box-shadow: 0 16px 26px rgba(118, 87, 246, .3); }
.pay-button[aria-busy="true"] { cursor: wait; opacity: .76; }
.pay-button:disabled { cursor: not-allowed; opacity: .6; transform: none; }

.assurance { display: flex; gap: 10px; align-items: flex-start; margin: 18px 0 0; color: var(--muted); font-size: .85rem; }
.assurance b { color: var(--mint); }
.status { min-height: 1.4em; margin: 17px 0 0; color: var(--muted); font-size: .9rem; }
.status.is-error { color: var(--danger); font-weight: 700; }

/* 票券 */
.ticket {
	position: relative;
	overflow: hidden;
	padding: 32px;
	color: #F4F6FF;
	border-radius: 24px;
	background: linear-gradient(142deg, #12213D, #243963);
	box-shadow: var(--shadow);
}
.ticket::before,
.ticket::after {
	content: "";
	position: absolute;
	width: 25px;
	height: 25px;
	border-radius: 50%;
	background: #FFFDF8;
	left: -13px;
}
.ticket::before { top: 42%; }
.ticket::after { bottom: 12%; }
.ticket-top {
	position: relative;
	display: flex;
	justify-content: space-between;
	align-items: start;
	gap: 18px;
	padding-bottom: 23px;
	border-bottom: 1px dashed rgba(255, 255, 255, .38);
}
.ticket-label { color: #AEBEE6; font-size: .74rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.ticket-stamp {
	display: grid;
	width: 46px;
	height: 46px;
	place-items: center;
	border: 1px solid rgba(134, 255, 226, .55);
	border-radius: 50%;
	color: #8FF5DC;
	font-size: .69rem;
	font-weight: 900;
	transform: rotate(11deg);
}
.ticket h2 { margin: 8px 0 0; color: #fff; font-size: 1.62rem; }
.ticket .price {
	display: block;
	margin: 25px 0 21px;
	color: #fff;
	font-size: clamp(2.8rem, 7vw, 4.6rem);
	font-weight: 900;
	line-height: .9;
	letter-spacing: -.07em;
}
.ticket ul {
	display: grid;
	gap: 12px;
	margin: 0;
	padding: 22px 0 0;
	border-top: 1px dashed rgba(255, 255, 255, .38);
	list-style: none;
}
.ticket li { display: flex; gap: 10px; color: #DFE7FF; }
.ticket li::before { content: "✦"; color: #8FF5DC; }
.ticket-foot { margin: 25px 0 0; color: #AEBEE6; font-size: .83rem; }

/* 支付成功 */
.success[hidden] { display: none; }
.success { padding: clamp(25px, 5vw, 48px); text-align: left; }
.success-badge {
	display: inline-grid;
	width: 48px;
	height: 48px;
	place-items: center;
	border-radius: 16px;
	color: #0E6659;
	background: #C9FFF2;
	font-size: 1.45rem;
}
.success h2 { margin: 16px 0 8px; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.success p { color: var(--muted); }
.success-label {
	display: inline-block;
	padding: 5px 9px;
	border: 1px solid #D9CAFF;
	border-radius: 999px;
	color: #5D35BD;
	background: #F5F0FF;
	font-size: .76rem;
	font-weight: 900;
	letter-spacing: .05em;
}
.activation {
	display: flex;
	gap: 10px;
	align-items: center;
	justify-content: space-between;
	margin: 22px 0;
	padding: 15px;
	border: 1px dashed #9AA8C5;
	border-radius: 14px;
	background: #FBFCFF;
}
.activation code { color: var(--ink); font-weight: 900; font-size: clamp(.9rem, 2vw, 1.05rem); letter-spacing: .04em; }
.copy-button {
	flex: 0 0 auto;
	padding: 8px 11px;
	border: 1px solid #BFC9DE;
	border-radius: 9px;
	color: var(--ink);
	background: #fff;
	font-weight: 800;
}
.home-button {
	display: inline-flex;
	padding: 12px 16px;
	border-radius: 11px;
	color: #fff;
	background: var(--ink);
	font-weight: 800;
}
.muted-link { display: inline-block; margin-top: 17px; color: var(--muted); }
.back-link { color: var(--muted); font-weight: 700; font-size: .92rem; }

/* ========================================================================
   登录 / 注册 / 简单信息页
   ======================================================================== */
.auth-wrap {
	display: grid;
	place-items: center;
	padding: 70px 0 90px;
	min-height: 60vh;
}
.auth-card {
	width: min(430px, 100%);
	padding: clamp(26px, 5vw, 40px);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: rgba(255, 255, 255, .9);
	box-shadow: var(--shadow);
}
.auth-card .brand { margin-bottom: 18px; }
.auth-card h1 { margin: 0 0 6px; font-size: clamp(1.7rem, 4vw, 2.2rem); letter-spacing: -.05em; }
.auth-sub { margin: 0 0 26px; color: var(--muted); font-size: .93rem; }
.auth-msg {
	margin: 0 0 20px;
	padding: 12px 14px;
	border-radius: 12px;
	font-size: .88rem;
	font-weight: 700;
}
.auth-msg.ok { color: #0E6659; background: #C9FFF2; }
.auth-msg.err { color: var(--danger); background: #FFF0F5; }
.auth-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 12px;
	margin: 0 0 22px;
	color: var(--muted);
	font-size: .85rem;
}
.auth-row label { display: inline-flex; align-items: center; gap: 7px; font-weight: 700; margin: 0; }
.auth-row input { accent-color: var(--violet); }
.auth-link { color: var(--violet); font-weight: 750; }
.auth-foot { margin: 22px 0 0; color: var(--muted); font-size: .88rem; text-align: center; }
.auth-fine { margin: 14px 0 0; color: var(--muted); font-size: .76rem; }

/* ========================================================================
   账户中心
   ======================================================================== */
.account-wrap { padding: 54px 0 80px; }
.account {
	display: grid;
	grid-template-columns: 250px minmax(0, 1fr);
	gap: 24px;
	align-items: start;
}
.account-side {
	padding: 20px;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: rgba(255, 255, 255, .88);
	box-shadow: 0 10px 25px rgba(35, 35, 80, .05);
}
.account-user { display: flex; align-items: center; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.account-avatar {
	display: grid;
	place-items: center;
	width: 42px;
	height: 42px;
	flex: 0 0 auto;
	border-radius: 14px;
	color: #fff;
	background: linear-gradient(135deg, var(--violet), var(--pink));
	font-weight: 900;
}
.account-id { min-width: 0; display: flex; flex-direction: column; }
.account-name { font-weight: 800; font-size: .9rem; }
.account-email { color: var(--muted); font-size: .74rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-nav { display: grid; gap: 3px; margin-top: 16px; }
.account-navlink {
	padding: 10px 12px;
	border-radius: 11px;
	color: var(--muted);
	font-size: .87rem;
	font-weight: 750;
}
.account-navlink:hover { background: rgba(124, 92, 252, .07); color: var(--violet); }
.account-navlink.is-active { background: var(--ink); color: #fff; }
.account-navlink--logout { color: var(--danger); }
.account-nav--foot { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }

.account-content {
	padding: clamp(22px, 4vw, 34px);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	background: rgba(255, 255, 255, .88);
	box-shadow: 0 10px 25px rgba(35, 35, 80, .05);
}
.account-title { margin: 0 0 22px; font-size: 1.6rem; letter-spacing: -.045em; }
.account-msg { margin: 0 0 20px; padding: 12px 14px; border-radius: 12px; font-size: .88rem; font-weight: 700; }
.account-msg--ok { color: #0E6659; background: #C9FFF2; }
.account-msg--err { color: var(--danger); background: #FFF0F5; }
.account-panel {
	margin: 0 0 20px;
	padding: 6px 18px;
	border: 1px solid var(--line);
	border-radius: 16px;
	background: #fff;
}
.account-panel--flush { padding: 0; overflow: hidden; }
.account-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 0; }
.account-row + .account-row { border-top: 1px solid var(--line); }
.account-rowlabel { color: var(--muted); font-size: .85rem; font-weight: 750; }
.account-badge { padding: 4px 9px; border-radius: 999px; font-size: .7rem; font-weight: 900; letter-spacing: .05em; }
.account-badge--ok { color: #0E6659; background: #C9FFF2; }
.account-badge--off { color: var(--muted); background: rgba(23, 26, 53, .07); }
.account-empty { padding: 34px 20px; text-align: center; color: var(--muted); }
.account-empty p { margin: 0 0 16px; }
.account-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.account-table th, .account-table td { padding: 12px 16px; text-align: left; }
.account-table th { color: var(--muted); font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; }
.account-table tbody tr + tr { border-top: 1px solid var(--line); }
.account-table a { color: var(--violet); font-weight: 750; }
.account-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.account-inline { display: flex; gap: 10px; align-items: start; flex-wrap: wrap; }
.account-inline .field { flex: 1 1 220px; margin-bottom: 0; }
.account-hr { margin: 28px 0; border: 0; border-top: 1px solid var(--line); }
.account-code {
	display: inline-block;
	padding: 8px 12px;
	border: 1px dashed #9AA8C5;
	border-radius: 10px;
	background: #FBFCFF;
	font-weight: 900;
	letter-spacing: .04em;
}

/* ------------------------------- 响应式 ------------------------------- */
@media (max-width: 980px) {
	.account { grid-template-columns: 1fr; }
	.account-nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
	.nav-links { display: none; }
	.hero { grid-template-columns: 1fr; padding-top: 44px; }
	.hero-copy { text-align: center; }
	.hero-copy > p { margin-left: auto; margin-right: auto; }
	.hero-actions, .platform-row { justify-content: center; }
	.hero-copy .eyebrow { justify-content: center; }
	.preview-wrap { max-width: 610px; width: 100%; margin: auto; }
	.skin-grid { grid-template-columns: repeat(2, 1fr); }
	.section-head { align-items: start; flex-direction: column; }
	.purchase-showcase { grid-template-columns: 1fr; }
	.testimonials { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
	.page-purchase .shell { width: min(100% - 28px, 600px); }
	.page-purchase main { padding: 38px 0 48px; }
	.checkout-grid { grid-template-columns: 1fr; }
	.ticket { grid-row: 1; padding: 26px; }
	.form-panel { padding: 25px; }
	.back-link { display: none; }
}

@media (max-width: 560px) {
	.shell { width: min(100% - 28px, 1180px); }
	.nav { min-height: 70px; gap: 8px; }
	.brand { font-size: .88rem; }
	.brand-mark { width: 30px; height: 30px; border-radius: 10px 10px 10px 4px; }
	.brand-mark::after { left: 7px; top: 2px; font-size: 20px; }
	.nav-actions .button { min-height: 37px; padding: 0 9px; font-size: .72rem; }
	.nav-account { max-width: 120px; padding: 6px 9px; font-size: .72rem; }
	.lang button { padding: 4px 6px; }
	.hero { padding: 39px 0 67px; gap: 38px; }
	h1 { font-size: 3.1rem; }
	.download-options { flex-direction: column; }
	.download-option { width: 100%; }
	.app-window { min-height: 333px; border-width: 5px; border-radius: 19px; }
	.window-content { grid-template-columns: 53px 1fr; min-height: 285px; }
	.app-rail { padding: 14px 8px; gap: 14px; }
	.app-main { padding: 18px; }
	.art { inset: 54px 13px 14px; }
	.section { padding: 65px 0; }
	.trust-strip, .skin-grid { grid-template-columns: 1fr; gap: 12px; }
	.trust-strip { margin-top: -15px; }
	.skin-cover { height: 145px; }
	.skin-info p { height: auto; }
	.filter-bar { width: 100%; }
	.filter-bar button { flex: 1 0 auto; padding: 8px 10px; }
	.vip-zone { padding: 36px 24px; }
	.vip-benefits { grid-template-columns: 1fr; }
	.steps { grid-template-columns: 1fr 1fr; }
	.footer-row { align-items: flex-start; flex-direction: column; }
	.purchase-showcase { padding: 24px; }
	.account-nav { grid-template-columns: 1fr; }
	.activation { align-items: stretch; flex-direction: column; }
	.copy-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		scroll-behavior: auto !important;
		animation-duration: .01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: .01ms !important;
	}
}