/* ==========================================================
   Life OS 主样式 · 编辑部风
   米白纸感 + 藏蓝墨 + 金点缀。左对齐排版、细线分隔、
   章节编号、实拍图错位——像一份被认真排过版的研究报告。
   ========================================================== */

:root {
	--bg: #f8f7f2;
	--ink: #12243c;
	--ink-soft: #4a5670;
	--muted: #8b93a5;
	--accent: #2f4a78;
	--accent-soft: #51678f;
	--gold: #b9995e;
	--gold-light: #d3b57e;
	--hairline: rgba(18, 36, 60, 0.12);
	--hairline-soft: rgba(18, 36, 60, 0.07);
	--paper: #fdfdfa;
	--dark-bg: #0b192e;
	--dark-ink: #f1efe8;
	--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC",
		"Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
	--font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", "SimSun", serif;
	--ease-out: cubic-bezier(0.22, 1, 0.36, 1);
	--r: 4px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
	font-family: var(--font-sans);
	background: var(--bg);
	color: var(--ink);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}

/* 全站极淡胶片颗粒，去掉数码的"光滑感" */
body::after {
	content: "";
	position: fixed;
	inset: 0;
	z-index: 97;
	pointer-events: none;
	opacity: 0.05;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: rgba(47, 74, 120, 0.18); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
em { font-style: normal; }

/* ---------- 容器 / 章节骨架 ---------- */

.wrap {
	max-width: 1120px;
	margin: 0 auto;
	padding-inline: clamp(20px, 5vw, 44px);
}

.wrap--narrow { max-width: 760px; }

section { padding: clamp(88px, 13vh, 160px) 0; }

/* 每个章节顶部一条细线 + 编号，像报告目录 */
.sec { border-top: 1px solid var(--hairline); }

.kicker {
	font-size: 0.78rem;
	letter-spacing: 0.3em;
	color: var(--accent-soft);
	margin-bottom: 30px;
	display: flex;
	align-items: baseline;
	gap: 16px;
}

.kicker b {
	font-size: 1.6rem;
	font-weight: 800;
	letter-spacing: 0.02em;
	color: transparent;
	-webkit-text-stroke: 1px rgba(47, 74, 120, 0.55);
}

.kicker--light { color: var(--gold-light); }
.kicker--light b { -webkit-text-stroke-color: rgba(211, 181, 126, 0.6); }

.h2 {
	font-family: var(--font-serif);
	font-size: clamp(2rem, 5vw, 3.5rem);
	font-weight: 900;
	line-height: 1.32;
	letter-spacing: 0.02em;
	max-width: 21em;
}

.h2--soft { color: var(--muted); margin-top: 0.35em; }

/* 手工感强调线：略微倾斜的粗底线，AI 默认画不出这种"歪" */
.u-mark {
	background: linear-gradient(104deg, transparent 2%, rgba(185, 153, 94, 0.38) 4%, rgba(185, 153, 94, 0.32) 96%, transparent 98%);
	background-size: 100% 0.32em;
	background-repeat: no-repeat;
	background-position: 0 88%;
	padding-inline: 0.06em;
}

.m-only { display: inline; }
@media (min-width: 768px) { .m-only { display: none; } }

/* ---------- 品牌 logo（客户原图抠底版，黑标透明底） ---------- */

.logo-img {
	height: 34px;
	width: auto;
	display: block;
}

.hero__kicker .logo-img { height: 40px; }

.loader .logo-img { height: 72px; }

/* 深色页脚上反白 */
.footer .logo-img { height: 44px; filter: invert(1) brightness(1.15); }

/* ---------- 「知」占位徽标（客户 logo 到位后整体替换） ---------- */

.mark {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border-radius: var(--r);
	background: var(--ink);
	color: var(--gold-light);
	font-family: var(--font-serif);
	font-size: 1.1rem;
	font-weight: 700;
	flex: 0 0 auto;
}

/* ---------- CTA：链接式 + 通栏填充式，不用"药丸对"按钮 ---------- */

/* 文字链：常驻底线，悬停金线从左划过、箭头前移 */
.lnk {
	position: relative;
	display: inline-flex;
	align-items: baseline;
	gap: 14px;
	font-weight: 600;
	letter-spacing: 0.08em;
	padding-bottom: 12px;
}

.lnk i {
	font-style: normal;
	transition: transform 0.45s var(--ease-out);
}

.lnk::after {
	content: "";
	position: absolute;
	left: 0; bottom: 0;
	width: 100%; height: 1px;
	background: var(--ink);
}

.lnk::before {
	content: "";
	position: absolute;
	left: 0; bottom: 0;
	width: 0; height: 1px;
	background: var(--gold);
	z-index: 1;
	transition: width 0.5s var(--ease-out);
}

.lnk:hover::before { width: 100%; }
.lnk:hover i { transform: translateX(8px); }

.lnk--strong {
	font-family: var(--font-serif);
	font-size: clamp(1.08rem, 2vw, 1.3rem);
	font-weight: 900;
}

.lnk--soft {
	color: var(--ink-soft);
	font-weight: 400;
	font-size: 0.98rem;
}

.lnk--soft::after { background: var(--hairline); }

/* 通栏填充按钮：文字居左箭头居右，悬停藏蓝自左向右灌满 */
.rowbtn {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	width: 100%;
	padding: 20px 26px;
	border: 1px solid var(--ink);
	overflow: hidden;
	font-size: 1.02rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	transition: color 0.4s var(--ease-out);
}

.rowbtn::before {
	content: "";
	position: absolute;
	inset: 0;
	background: var(--ink);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.55s var(--ease-out);
}

.rowbtn:hover { color: var(--bg); }
.rowbtn:hover::before { transform: scaleX(1); }

.rowbtn span, .rowbtn b {
	position: relative;
	z-index: 1;
	font-weight: inherit;
}

.rowbtn b i {
	font-style: normal;
	display: inline-block;
	transition: transform 0.45s var(--ease-out);
}

.rowbtn:hover b i { transform: translateX(6px); }

/* 全站图片统一影调：降饱和 + 微暖，压掉图库味 */
.fig img,
.viewer__stage img,
.cinema__media img {
	filter: saturate(0.68) contrast(1.05) sepia(0.1) brightness(1.01);
}

/* ---------- 实拍图框：白边相纸 + 手写体图注 ---------- */

.fig {
	background: var(--paper);
	border: 1px solid var(--hairline-soft);
	border-radius: var(--r);
	padding: 10px;
	box-shadow: 0 14px 34px rgba(18, 36, 60, 0.12);
}

.fig img { border-radius: 2px; width: 100%; }

.fig figcaption {
	padding: 10px 4px 4px;
	font-size: 0.78rem;
	letter-spacing: 0.12em;
	color: var(--muted);
	display: flex;
	justify-content: space-between;
}

/* ---------- 开场遮罩 ---------- */

.loader {
	position: fixed;
	inset: 0;
	z-index: 100;
	background: var(--bg);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 26px;
	animation: loader-away 0.6s ease 3s forwards; /* JS 异常时兜底 */
}

.loader__mark { width: 54px; height: 54px; font-size: 1.8rem; }

.loader__word {
	font-size: clamp(1rem, 2.4vw, 1.3rem);
	font-weight: 600;
	letter-spacing: 0.42em;
	text-indent: 0.42em;
	color: var(--ink-soft);
}

.loader__bar {
	width: 120px;
	height: 1px;
	background: var(--hairline);
	overflow: hidden;
}

.loader__pct {
	font-size: 0.75rem;
	letter-spacing: 0.28em;
	color: var(--muted);
	font-variant-numeric: tabular-nums;
}

.loader__bar i {
	display: block;
	width: 100%; height: 100%;
	background: var(--ink);
	transform: scaleX(0);
	transform-origin: left;
}

@keyframes loader-away {
	to { opacity: 0; visibility: hidden; }
}

/* ---------- 跟随光标 ---------- */

.cursor {
	position: fixed;
	top: 0; left: 0;
	width: 12px; height: 12px;
	border-radius: 50%;
	background: #fff;
	mix-blend-mode: difference;
	pointer-events: none;
	z-index: 99;
	opacity: 0;
	transform: translate(-50%, -50%);
}

@media (hover: none), (pointer: coarse) {
	.cursor { display: none; }
}

/* ---------- 顶部导航 ---------- */

.nav {
	position: fixed;
	top: 0; left: 0; right: 0;
	z-index: 90;
	transform: translateY(-110%);
	transition: transform 0.6s var(--ease-out);
	background: rgba(248, 247, 242, 0.78);
	-webkit-backdrop-filter: saturate(1.6) blur(18px);
	backdrop-filter: saturate(1.6) blur(18px);
	border-bottom: 1px solid var(--hairline);
}

.nav.is-visible { transform: translateY(0); }

.nav__inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 12px clamp(20px, 4vw, 36px);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
}

.nav__logo {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-weight: 600;
	font-size: 0.9rem;
	letter-spacing: 0.16em;
}

.nav__links {
	display: flex;
	gap: clamp(18px, 3vw, 34px);
	font-size: 0.88rem;
	color: var(--ink-soft);
}

.nav__links a {
	position: relative;
	padding: 4px 0;
	transition: color 0.3s;
}

.nav__links a::after {
	content: "";
	position: absolute;
	left: 0; bottom: 0;
	width: 100%; height: 1px;
	background: var(--ink);
	transform: scaleX(0);
	transform-origin: right;
	transition: transform 0.4s var(--ease-out);
}

.nav__links a:hover, .nav__links a.is-active { color: var(--ink); }
.nav__links a:hover::after, .nav__links a.is-active::after {
	transform: scaleX(1);
	transform-origin: left;
}

.nav__cta {
	font-size: 0.85rem;
	font-weight: 500;
	padding: 4px 0;
	border-bottom: 1px solid var(--ink);
	transition: color 0.35s, border-color 0.35s;
}

.nav__cta:hover { color: var(--accent); border-color: var(--gold); }

@media (max-width: 767px) {
	.nav__links { display: none; }
}

/* ---------- 01 Hero：左文右图，非对称 ---------- */

.hero {
	position: relative;
	min-height: 100svh;
	display: flex;
	align-items: center;
	padding: 130px 0 150px;
	overflow: hidden;
}

.hero__orbs { position: absolute; inset: 0; pointer-events: none; }

.orb {
	position: absolute;
	border-radius: 50%;
	filter: blur(70px);
	opacity: 0.5;
	will-change: transform;
}

.orb--a {
	width: 42vw; height: 42vw;
	left: -12vw; top: -8vw;
	background: radial-gradient(circle, rgba(185, 153, 94, 0.26), transparent 65%);
	animation: orb-drift 22s ease-in-out infinite alternate;
}

.orb--b {
	width: 34vw; height: 34vw;
	right: -8vw; top: 30vh;
	background: radial-gradient(circle, rgba(81, 103, 143, 0.22), transparent 65%);
	animation: orb-drift 28s ease-in-out infinite alternate-reverse;
}

@keyframes orb-drift {
	from { transform: translate(0, 0) scale(1); }
	to { transform: translate(6vw, -5vh) scale(1.12); }
}

.hero__inner {
	position: relative;
	width: 100%;
	max-width: 1200px;
	margin: 0 auto;
	padding-inline: clamp(20px, 5vw, 44px);
	display: grid;
	grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
	gap: clamp(32px, 5vw, 72px);
	align-items: center;
}

.hero__kicker {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	font-size: 0.78rem;
	letter-spacing: 0.38em;
	color: var(--ink-soft);
	margin-bottom: 38px;
}

.hero__title {
	font-family: var(--font-serif);
	font-size: clamp(2.5rem, 6.2vw, 4.9rem);
	font-weight: 900;
	line-height: 1.28;
	letter-spacing: 0.03em;
}

.hero__title .line { display: block; overflow: hidden; padding-bottom: 0.08em; }

.hero__title .char { display: inline-block; will-change: transform; }

.hero__sub {
	margin-top: 34px;
	font-size: clamp(1rem, 1.7vw, 1.2rem);
	line-height: 2.05;
	color: var(--ink-soft);
	max-width: 30em;
}

.hero__brand {
	margin-top: 40px;
	padding-left: 18px;
	border-left: 2px solid var(--gold);
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.hero__brand strong { font-size: 1.2rem; letter-spacing: 0.16em; }

.hero__brand span { font-size: 0.98rem; color: var(--ink-soft); }

.hero__brand small { font-size: 0.8rem; color: var(--muted); letter-spacing: 0.08em; }

.hero__actions {
	margin-top: 46px;
	display: flex;
	align-items: baseline;
	flex-wrap: wrap;
	gap: 18px 44px;
}

/* 右侧商品图叠放：一正一歪 */
.hero__stack { position: relative; min-height: 380px; }

.hero__stack .fig {
	position: absolute;
	width: min(78%, 340px);
	will-change: transform;
}

.hero__stack .fig:nth-child(1) {
	top: 4%; left: 0;
	transform: rotate(-5deg);
	z-index: 1;
}

.hero__stack .fig:nth-child(2) {
	top: 30%; right: 0;
	transform: rotate(3.5deg);
	z-index: 2;
}

.hero__decl {
	position: absolute;
	bottom: 92px;
	left: 50%;
	transform: translateX(-50%);
	width: min(640px, 86vw);
	text-align: center;
	font-size: 0.85rem;
	line-height: 1.9;
	color: var(--muted);
	letter-spacing: 0.06em;
}

.hero__hint {
	position: absolute;
	bottom: 24px;
	left: 50%;
	transform: translateX(-50%);
	width: 1px; height: 50px;
	background: var(--hairline);
	overflow: hidden;
}

.hero__hint span {
	display: block;
	width: 100%; height: 40%;
	background: var(--ink);
	animation: hint-fall 1.8s var(--ease-out) infinite;
}

@keyframes hint-fall {
	from { transform: translateY(-100%); }
	to { transform: translateY(260%); }
}

@media (max-width: 899px) {
	.hero { padding-bottom: 190px; }
	.hero__inner { grid-template-columns: 1fr; }
	.hero__stack { min-height: 300px; margin-top: 16px; }
	.hero__stack .fig { width: min(62%, 300px); }
}

/* ---------- 02 为什么存在 ---------- */

.compare {
	margin-top: clamp(56px, 9vh, 96px);
	display: grid;
	grid-template-columns: 5fr 7fr; /* 刻意不对称：现在 > 过去 */
	gap: clamp(16px, 2.5vw, 32px);
	align-items: stretch;
}

.compare__col {
	border-radius: var(--r);
	padding: clamp(32px, 4.5vw, 56px) clamp(24px, 3.5vw, 44px);
}

.compare__col--past {
	border: 1px dashed rgba(18, 36, 60, 0.24);
	color: var(--muted);
}

.compare__col--now {
	background: var(--ink);
	color: var(--dark-ink);
	box-shadow: 10px 10px 0 rgba(18, 36, 60, 0.12);
}

.compare__tag {
	display: inline-block;
	font-size: 0.78rem;
	letter-spacing: 0.4em;
	padding: 0.45em 1.2em 0.45em 1.6em;
	border: 1px solid currentColor;
	border-radius: var(--r);
	opacity: 0.75;
	margin-bottom: 30px;
}

.compare__col--now .compare__tag { color: var(--gold-light); }

.compare__term {
	font-size: clamp(1.35rem, 2.8vw, 2rem);
	font-weight: 600;
	line-height: 1.5;
}

.compare__arrow {
	display: block;
	margin: 20px 0;
	width: 1px; height: 30px;
	background: currentColor;
	opacity: 0.35;
	position: relative;
}

.compare__arrow::after {
	content: "";
	position: absolute;
	bottom: 0; left: 50%;
	width: 7px; height: 7px;
	border-right: 1px solid currentColor;
	border-bottom: 1px solid currentColor;
	transform: translateX(-50%) rotate(45deg);
}

.compare__result { font-size: clamp(1.05rem, 2.1vw, 1.4rem); opacity: 0.85; }

.compare__col--now .compare__result { color: var(--gold-light); opacity: 1; }

@media (max-width: 767px) {
	.compare { grid-template-columns: 1fr; }
}

/* 两层痛点（客户原话） */

.pains {
	margin-top: clamp(56px, 8vh, 88px);
	border-top: 1px solid var(--hairline);
}

.pains__row {
	display: grid;
	grid-template-columns: 130px 1fr;
	gap: 20px;
	padding: 22px 0;
	border-bottom: 1px solid var(--hairline);
	align-items: baseline;
}

.pains__row dt {
	font-size: 0.85rem;
	letter-spacing: 0.28em;
	color: var(--gold);
	font-weight: 600;
}

.pains__row dd {
	font-size: clamp(0.98rem, 1.8vw, 1.12rem);
	color: var(--ink-soft);
	line-height: 2;
}

@media (max-width: 599px) {
	.pains__row { grid-template-columns: 1fr; gap: 6px; }
}

.why__lines {
	margin: clamp(56px, 9vh, 88px) 0 0;
	max-width: 620px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	font-size: clamp(1.02rem, 1.9vw, 1.25rem);
	color: var(--muted);
}

.why__lines .turn {
	margin-top: 24px;
	color: var(--ink);
	font-weight: 600;
	font-size: clamp(1.12rem, 2.2vw, 1.45rem);
}

.why__core {
	margin-top: clamp(72px, 11vh, 110px);
	font-family: var(--font-serif);
	font-size: clamp(1.7rem, 4.4vw, 3rem);
	font-weight: 900;
	line-height: 1.72;
	color: #e6e3d9;
	max-width: 18em;
}

/* 「行为资产」大字 */

.asset { padding-top: clamp(72px, 11vh, 110px); }

.asset__label {
	font-size: 0.78rem;
	letter-spacing: 0.4em;
	color: var(--gold);
	margin-bottom: 16px;
}

.asset__word {
	font-family: var(--font-serif);
	font-size: clamp(3.6rem, 13vw, 10.5rem);
	font-weight: 900;
	letter-spacing: 0.1em;
	line-height: 1.15;
	color: #e8e5db;
	text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.9), -1px -1px 1px rgba(18, 36, 60, 0.1);
}

.asset__note {
	margin-top: 30px;
	font-size: clamp(1.02rem, 2vw, 1.3rem);
	color: var(--ink-soft);
	font-family: var(--font-serif);
}

/* ---------- 03 行为研究体系 ---------- */

.method__vs {
	margin-top: clamp(44px, 6vh, 64px);
	display: flex;
	flex-direction: column;
	gap: 10px;
	font-size: clamp(1rem, 1.8vw, 1.18rem);
}

.method__vs .vs-them { color: var(--muted); }
.method__vs .vs-them s { text-decoration-color: rgba(139, 147, 165, 0.6); }
.method__vs .vs-us { color: var(--ink); font-weight: 600; }

.steps {
	position: relative;
	margin-top: clamp(44px, 7vh, 80px);
	padding-left: clamp(0px, 4vw, 40px);
}

.steps__line {
	position: absolute;
	left: clamp(26px, 7vw, 66px);
	top: 0; bottom: 0;
	width: 1px;
	background: var(--hairline);
}

.steps__line::after {
	content: "";
	position: absolute;
	inset: 0;
	background: var(--accent);
	transform: scaleY(var(--line-scale, 0));
	transform-origin: top;
}

.step {
	display: flex;
	gap: clamp(24px, 5vw, 60px);
	align-items: baseline;
	padding: clamp(32px, 5.5vh, 54px) 0;
}

.step__num {
	font-size: clamp(2.2rem, 4.6vw, 3.6rem);
	font-weight: 800;
	color: transparent;
	-webkit-text-stroke: 1px rgba(47, 74, 120, 0.6);
	flex: 0 0 auto;
	line-height: 1;
	position: relative;
	z-index: 1;
	background: var(--bg);
	padding: 0 8px;
}

.step__body h3 {
	font-size: clamp(1.22rem, 2.3vw, 1.55rem);
	font-weight: 600;
	margin-bottom: 8px;
}

.step__body p { color: var(--muted); font-size: 1rem; }

.method__claim {
	margin-top: clamp(52px, 8vh, 88px);
	font-size: clamp(1.35rem, 3.2vw, 2.1rem);
	font-weight: 600;
	line-height: 1.75;
	max-width: 24em;
}

.method__claim em { font-family: var(--font-serif); color: var(--accent); }

/* ---------- 04 主理人初心 ---------- */

.story { background: linear-gradient(180deg, var(--bg), #f0eee6 55%, var(--bg)); }

.story__body {
	margin-top: 50px;
	display: flex;
	flex-direction: column;
	gap: 16px;
	font-size: clamp(1.02rem, 1.9vw, 1.22rem);
	line-height: 2.1;
	color: var(--ink-soft);
}

.story__q {
	margin: clamp(48px, 8vh, 80px) 0;
	font-family: var(--font-serif);
	font-size: clamp(1.45rem, 3.2vw, 2.2rem);
	line-height: 1.85;
	position: relative;
	padding: 40px 0 0 26px;
	border-left: 2px solid rgba(185, 153, 94, 0.5);
}

.story__q::before {
	content: "“";
	position: absolute;
	top: -14px; left: 16px;
	font-size: 4.6rem;
	color: rgba(185, 153, 94, 0.4);
	line-height: 1;
}

/* 6 年 / 600 天：研究底气 */
.story__stats {
	margin-top: clamp(48px, 7vh, 72px);
	display: grid;
	grid-template-columns: 1fr 1fr;
	border-top: 1px solid var(--hairline);
	border-bottom: 1px solid var(--hairline);
}

.story__stat { padding: 30px 8px; }

.story__stat + .story__stat { border-left: 1px solid var(--hairline); padding-left: 30px; }

.story__stat b {
	display: block;
	font-size: clamp(2.6rem, 6vw, 4.2rem);
	font-weight: 800;
	line-height: 1.1;
	color: transparent;
	-webkit-text-stroke: 1.5px var(--accent);
	font-variant-numeric: tabular-nums;
}

.story__stat b small {
	font-size: 0.4em;
	-webkit-text-stroke: 0;
	color: var(--accent);
	font-weight: 700;
}

.story__stat span {
	display: block;
	margin-top: 10px;
	font-size: 0.9rem;
	letter-spacing: 0.14em;
	color: var(--muted);
}

/* 观察维度：细线行，不用胶囊 */
.story__dims { margin-top: clamp(40px, 6vh, 56px); }

.story__dims li {
	display: flex;
	align-items: baseline;
	gap: 18px;
	padding: 15px 2px;
	border-bottom: 1px solid var(--hairline);
	font-size: 1.02rem;
	color: var(--ink-soft);
}

.story__dims li i {
	font-style: normal;
	font-size: 0.78rem;
	letter-spacing: 0.1em;
	color: var(--gold);
	font-variant-numeric: tabular-nums;
}

.story__key { margin-top: clamp(48px, 8vh, 80px); }

.story__key blockquote {
	font-size: clamp(1.35rem, 2.9vw, 1.9rem);
	font-weight: 600;
	line-height: 1.95;
}

.story__key em {
	color: var(--accent);
	border-bottom: 2px solid rgba(47, 74, 120, 0.35);
	padding-bottom: 2px;
}

.story__cred {
	margin-top: clamp(56px, 9vh, 88px);
	border-left: 2px solid rgba(185, 153, 94, 0.5);
	padding: 6px 0 6px 26px;
	font-size: 0.96rem;
	line-height: 2.1;
	color: var(--muted);
}

/* ---------- 05 产品展示 ---------- */

.system { padding-bottom: 0; }

.system__sub {
	margin-top: 18px;
	font-size: clamp(1.02rem, 2vw, 1.28rem);
	color: var(--muted);
	letter-spacing: 0.08em;
}

.system__intro {
	margin-top: 36px;
	font-family: var(--font-serif);
	font-size: clamp(1.12rem, 2.3vw, 1.55rem);
	line-height: 2;
	color: var(--ink-soft);
	max-width: 30em;
}

.modules {
	margin-top: clamp(48px, 7vh, 80px);
	overflow: hidden;
	padding-bottom: clamp(72px, 10vh, 120px);
}

.modules__track {
	display: flex;
	gap: clamp(20px, 3vw, 40px);
	padding-inline: clamp(20px, 5vw, 44px);
	width: max-content;
}

.module {
	width: min(500px, 82vw);
	background: var(--paper);
	border: 1px solid var(--hairline);
	border-radius: var(--r);
	padding: clamp(32px, 4.5vw, 52px);
	box-shadow: 10px 10px 0 rgba(18, 36, 60, 0.07);
	display: flex;
	flex-direction: column;
	transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}

.module:hover {
	transform: translate(-3px, -6px) scale(1.04);
	
}

.module__no {
	font-size: 0.78rem;
	letter-spacing: 0.3em;
	color: var(--gold);
	margin-bottom: 20px;
}

.module__name {
	font-size: clamp(1.7rem, 3.2vw, 2.3rem);
	font-weight: 700;
	margin-bottom: 10px;
}

.module__desc {
	font-size: 1.02rem;
	color: var(--ink-soft);
	margin-bottom: 36px;
}

.module__list { border-top: 1px solid var(--hairline); }

.module__list li {
	padding: 15px 0 15px 24px;
	border-bottom: 1px solid var(--hairline);
	color: var(--ink-soft);
	position: relative;
	font-size: 0.97rem;
}

.module__list li::before {
	content: "";
	position: absolute;
	left: 2px; top: 50%;
	width: 8px; height: 1px;
	background: var(--accent);
}

.module__core {
	margin-top: 26px;
	font-size: 0.94rem;
	font-weight: 600;
	color: var(--accent);
	letter-spacing: 0.04em;
}

@media (max-width: 899px) {
	.modules__track { flex-direction: column; width: auto; }
	.module { width: 100%; }
}

/* 课程系统实拍：浏览器窗口取景器 + 缩略图轮播 */

.viewer {
	margin-top: clamp(24px, 4vh, 48px);
	padding-bottom: clamp(88px, 13vh, 150px);
}

.viewer__head {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	margin-bottom: 18px;
}

.viewer__label {
	font-size: 0.78rem;
	letter-spacing: 0.3em;
	color: var(--muted);
}

.viewer__count {
	font-size: 0.82rem;
	color: var(--muted);
	letter-spacing: 0.1em;
	font-variant-numeric: tabular-nums;
}

.viewer__count b { color: var(--ink); font-size: 1.05rem; }

.viewer__window {
	background: var(--paper);
	border: 1px solid var(--hairline);
	border-radius: 10px;
	overflow: hidden;
	box-shadow: 0 24px 60px rgba(18, 36, 60, 0.14);
}

.viewer__bar {
	display: flex;
	align-items: center;
	gap: 7px;
	padding: 11px 16px;
	border-bottom: 1px solid var(--hairline);
	background: #f2f0ea;
}

.viewer__bar i { width: 10px; height: 10px; border-radius: 50%; }
.viewer__bar i:nth-child(1) { background: #dd8a80; }
.viewer__bar i:nth-child(2) { background: #e2c17c; }
.viewer__bar i:nth-child(3) { background: #a8c598; }

.viewer__bar span {
	margin-left: 12px;
	font-size: 0.74rem;
	letter-spacing: 0.08em;
	color: var(--muted);
	background: var(--paper);
	border: 1px solid var(--hairline);
	border-radius: 5px;
	padding: 3px 16px;
}

.viewer__stage {
	position: relative;
	aspect-ratio: 846 / 490;
	background: #edebe3;
	overflow: hidden;
}

.viewer__stage img {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: 0;
	transform: scale(1.015);
	transition: opacity 0.65s var(--ease-out), transform 0.9s var(--ease-out);
}

.viewer__stage img.is-active { opacity: 1; transform: scale(1); }

/* GSAP 接管切换时关掉 CSS 过渡，避免双重缓动打架 */
.viewer--cine .viewer__stage img { transition: none; }

/* 切换瞬间扫过舞台的一道光 */
.viewer__flash {
	position: absolute;
	top: 0;
	left: 0;
	width: 40%;
	height: 100%;
	z-index: 5;
	pointer-events: none;
	background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.3), transparent);
	transform: skewX(-14deg);
	opacity: 0;
}

.viewer__thumbs {
	margin-top: 14px;
	display: grid;
	grid-template-columns: repeat(8, 1fr);
	gap: 10px;
}

.viewer__thumbs button {
	position: relative;
	border: 1px solid var(--hairline);
	background: var(--paper);
	border-radius: 4px;
	padding: 4px;
	cursor: pointer;
	opacity: 0.5;
	overflow: hidden;
	transition: opacity 0.3s, border-color 0.3s;
}

.viewer__thumbs button:hover { opacity: 0.85; }

.viewer__thumbs button img {
	width: 100%;
	aspect-ratio: 846 / 490;
	object-fit: cover;
	border-radius: 2px;
	display: block;
}

.viewer__thumbs button.is-active { opacity: 1; border-color: var(--accent); }

/* 自动轮播进度条 */
.viewer__thumbs button.is-active::after {
	content: "";
	position: absolute;
	left: 0; bottom: 0;
	height: 2px; width: 100%;
	background: var(--accent);
	transform-origin: left;
	animation: thumb-fill 4.5s linear forwards;
}

.viewer.is-paused .viewer__thumbs button.is-active::after { animation-play-state: paused; }

@keyframes thumb-fill {
	from { transform: scaleX(0); }
	to { transform: scaleX(1); }
}

@media (max-width: 767px) {
	.viewer__thumbs { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- 06 行为迁移过程 ---------- */

.transfer__bar {
	max-width: 640px;
	height: 2px;
	background: var(--hairline);
	margin-top: clamp(44px, 7vh, 64px);
	overflow: hidden;
}

.transfer__bar i {
	display: block;
	height: 100%; width: 100%;
	background: var(--accent);
	transform: scaleX(0);
	transform-origin: left;
}

.tsteps {
	margin-top: clamp(44px, 6.5vh, 64px);
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: clamp(16px, 2.5vw, 30px);
}

.tstep {
	position: relative;
	padding: 28px 24px;
	border-radius: var(--r);
	border: 1px solid var(--hairline);
	opacity: 0.35;
	transform: translateY(6px);
	transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out),
		box-shadow 0.5s var(--ease-out), border-color 0.5s;
}

.tstep.is-on {
	opacity: 1;
	transform: translateY(0);
	border-color: rgba(47, 74, 120, 0.35);
	box-shadow: 7px 7px 0 rgba(18, 36, 60, 0.07);
}

.tstep:not(:last-child)::after {
	content: "→";
	position: absolute;
	right: -21px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--muted);
	font-size: 0.95rem;
	opacity: 0.6;
}

.tstep__no {
	font-size: 0.76rem;
	letter-spacing: 0.22em;
	color: var(--gold);
}

.tstep h3 {
	margin-top: 12px;
	font-size: 1.32rem;
	font-weight: 700;
}

.tstep p {
	margin-top: 8px;
	font-size: 0.92rem;
	line-height: 1.8;
	color: var(--muted);
}

.transfer__note {
	margin-top: clamp(48px, 7vh, 72px);
	font-family: var(--font-serif);
	font-size: clamp(1.08rem, 2.1vw, 1.4rem);
	line-height: 2;
	color: var(--ink-soft);
	max-width: 30em;
}

@media (max-width: 899px) {
	.tsteps { grid-template-columns: 1fr 1fr; }
	.tstep:not(:last-child)::after { display: none; }
}

@media (max-width: 479px) {
	.tsteps { grid-template-columns: 1fr; }
}

/* ---------- 07 研究案例（藏蓝深色段落） ---------- */

.cases {
	background: var(--dark-bg);
	color: var(--dark-ink);
	border-radius: 14px;
	margin-inline: clamp(10px, 2vw, 28px);
	padding: clamp(100px, 15vh, 180px) 0;
	border-top: none;
}

.cases__claim {
	font-family: var(--font-serif);
	font-size: clamp(2.1rem, 6.2vw, 4.6rem);
	font-weight: 900;
	line-height: 1.42;
	letter-spacing: 0.02em;
}

.cases__claim .char { color: rgba(241, 239, 232, 0.13); }

.cases__grid {
	margin-top: clamp(56px, 9vh, 96px);
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: clamp(16px, 2.5vw, 30px);
}

.case {
	background: rgba(241, 239, 232, 0.035);
	border: 1px solid rgba(241, 239, 232, 0.12);
	border-radius: var(--r);
	padding: clamp(26px, 3.2vw, 40px);
	transition: transform 0.5s var(--ease-out), background 0.5s;
}

.case:hover {
	transform: translateY(-6px);
	background: rgba(241, 239, 232, 0.06);
}

.case__who {
	display: block;
	font-size: 1.18rem;
	font-weight: 600;
	letter-spacing: 0.06em;
}

.case__cn {
	display: block;
	margin-top: 6px;
	font-size: 0.8rem;
	letter-spacing: 0.2em;
	color: rgba(241, 239, 232, 0.45);
}

.case__not {
	margin-top: 28px;
	font-size: 0.95rem;
	color: rgba(241, 239, 232, 0.4);
}

.case__not s { text-decoration-color: rgba(241, 239, 232, 0.3); }

.case__is {
	margin-top: 10px;
	font-size: 1.06rem;
	line-height: 1.8;
	color: var(--gold-light);
}

.cases__closing {
	margin-top: clamp(64px, 10vh, 100px);
	font-size: clamp(1.2rem, 2.7vw, 1.8rem);
	line-height: 2;
	color: rgba(241, 239, 232, 0.6);
	max-width: 26em;
}

.cases__closing em { font-family: var(--font-serif); color: var(--dark-ink); }

@media (max-width: 899px) {
	.cases__grid { grid-template-columns: 1fr; }
}

/* ---------- 08 用户筛选 ---------- */

.fit__cols {
	margin-top: clamp(48px, 7vh, 80px);
	display: grid;
	grid-template-columns: 1fr 1fr; /* 不对称 */
	gap: clamp(20px, 3vw, 44px);
	align-items: start;
}

.fit__col { border-top: 2px solid var(--ink); padding-top: 24px; }

.fit__col--no { border-top-color: var(--hairline); }

.fit__col h3 {
	font-size: 1.02rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	margin-bottom: 18px;
}

.fit__col--no h3 { color: var(--muted); }

.fit__col li {
	position: relative;
	padding: 14px 0 14px 32px;
	border-bottom: 1px solid var(--hairline);
	font-size: 1rem;
	color: var(--ink-soft);
}

.fit__col li:last-child { border-bottom: none; }

.fit__col li::before {
	position: absolute;
	left: 2px;
	top: 14px;
	font-size: 0.85rem;
}

.fit__col--yes li::before { content: "✓"; color: var(--accent); }

.fit__col--no li::before { content: "✕"; color: var(--muted); }

.fit__col--no li { color: var(--muted); }

@media (max-width: 767px) {
	.fit__cols { grid-template-columns: 1fr; }
}

/* ---------- 09 购买：左卡右图 ---------- */

.buy__grid {
	margin-top: clamp(48px, 7vh, 80px);
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: clamp(28px, 4vw, 64px);
	align-items: center;
}

.price-card {
	background: var(--paper);
	border: 1px solid var(--hairline);
	border-radius: var(--r);
	padding: clamp(36px, 5vw, 60px) clamp(26px, 4vw, 52px);
	box-shadow: 12px 12px 0 rgba(18, 36, 60, 0.08);
}

.price-card__course {
	font-family: var(--font-serif);
	font-size: clamp(1.25rem, 2.5vw, 1.6rem);
	font-weight: 600;
}

.price-card__alias {
	margin-top: 8px;
	font-size: 0.82rem;
	letter-spacing: 0.24em;
	color: var(--muted);
}

.price-card__list { margin-top: 32px; }

.price-card__list li {
	position: relative;
	padding: 12px 0 12px 28px;
	border-bottom: 1px solid var(--hairline);
	color: var(--ink-soft);
	font-size: 0.97rem;
}

.price-card__list li:last-child { border-bottom: none; }

.price-card__list li::before {
	content: "✓";
	position: absolute;
	left: 0; top: 12px;
	font-size: 0.8rem;
	color: var(--accent);
}

.price-card__price {
	margin-top: 38px;
	font-weight: 800;
	line-height: 1;
	font-variant-numeric: tabular-nums;
}

.price-card__price .cny {
	font-size: clamp(1.3rem, 2.8vw, 1.8rem);
	vertical-align: 0.9em;
	margin-right: 6px;
	color: var(--accent);
}

.price-card__price b { font-size: clamp(3.6rem, 9vw, 5.8rem); letter-spacing: 0.02em; }

.price-card .rowbtn { margin-top: 38px; }

.price-card__tip {
	margin-top: 16px;
	font-size: 0.8rem;
	color: var(--muted);
	letter-spacing: 0.14em;
}

.buy__fig { transform: rotate(2.5deg); }

.buy__closing {
	margin-top: clamp(48px, 7vh, 72px);
	font-family: var(--font-serif);
	font-size: clamp(1.02rem, 2vw, 1.3rem);
	line-height: 2;
	color: var(--ink-soft);
}

@media (max-width: 899px) {
	.buy__grid { grid-template-columns: 1fr; }
	.buy__fig { max-width: 420px; margin: 0 auto; }
}

/* ---------- 页脚：藏蓝品牌收尾 ---------- */

.footer {
	background: var(--dark-bg);
	color: var(--dark-ink);
	padding: clamp(64px, 9vh, 104px) 0 44px;
	margin-top: clamp(40px, 6vh, 72px);
}

/* 超大描边字标，压轴的品牌记忆点 */
.footer__word {
	font-size: clamp(3.4rem, 11vw, 8.5rem);
	font-weight: 800;
	line-height: 1;
	letter-spacing: 0.06em;
	color: transparent;
	-webkit-text-stroke: 1px rgba(241, 239, 232, 0.22);
	margin-bottom: clamp(36px, 6vh, 60px);
	user-select: none;
}

.footer__grid {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 28px;
	align-items: start;
}

.footer__brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-weight: 600;
	font-size: 0.95rem;
	letter-spacing: 0.14em;
}

.footer .mark { background: var(--gold-light); color: var(--dark-bg); }

.footer__slogan {
	margin-top: 16px;
	font-family: var(--font-serif);
	font-size: 0.95rem;
	color: rgba(241, 239, 232, 0.55);
}

.footer__media {
	display: flex;
	flex-direction: column;
	gap: 8px;
	font-size: 0.85rem;
	color: rgba(241, 239, 232, 0.75);
	text-align: right;
}

.footer__media a {
	border-bottom: 1px solid rgba(241, 239, 232, 0.22);
	padding-bottom: 2px;
	transition: color 0.3s, border-color 0.3s;
}

.footer__media a:hover { color: var(--gold-light); border-color: var(--gold-light); }

.footer__meta {
	margin-top: 44px;
	padding-top: 20px;
	border-top: 1px solid rgba(241, 239, 232, 0.14);
	display: flex;
	flex-wrap: wrap;
	gap: 10px 26px;
	font-size: 0.8rem;
	color: rgba(241, 239, 232, 0.45);
}

@media (max-width: 767px) {
	.footer__grid { grid-template-columns: 1fr; }
	.footer__media { text-align: left; }
}

/* ---------- 幕间：全幅影像 + 金句 ---------- */

.cinema {
	position: relative;
	height: min(92vh, 820px);
	overflow: hidden; border-radius: 6px;
	padding: 0;
	margin-top: clamp(40px, 6vh, 72px);
}

.cinema__media { position: absolute; inset: -14% 0; will-change: transform; }

.cinema__media img { width: 100%; height: 100%; object-fit: cover; }

.cinema::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 1;
	background: linear-gradient(180deg, rgba(11, 25, 46, 0.3), rgba(11, 25, 46, 0.58));
}

.cinema__quote {
	position: relative;
	z-index: 2;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	color: #fff;
	padding-inline: 24px;
}

.cinema__quote p {
	font-family: var(--font-serif);
	font-size: clamp(1.7rem, 4.6vw, 3.4rem);
	font-weight: 600;
	line-height: 1.8;
	text-shadow: 0 2px 24px rgba(11, 25, 46, 0.45);
}

.cinema__quote cite {
	margin-top: 28px;
	font-style: normal;
	font-size: 0.85rem;
	letter-spacing: 0.32em;
	color: var(--gold-light);
}

/* ---------- 右侧章节进度轨（大屏） ---------- */

.rail {
	position: fixed;
	right: 22px;
	top: 50%;
	transform: translateY(-50%);
	z-index: 80;
	display: flex;
	flex-direction: column;
	gap: 13px;
}

.rail a {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 8px;
	font-size: 0.62rem;
	letter-spacing: 0.12em;
	color: var(--muted);
	opacity: 0.55;
	font-variant-numeric: tabular-nums;
	transition: opacity 0.3s, color 0.3s;
}

.rail a i {
	font-style: normal;
	width: 18px;
	height: 1px;
	background: currentColor;
	transition: width 0.35s var(--ease-out);
}

.rail a.is-on { opacity: 1; color: var(--accent); }

.rail a.is-on i { width: 34px; }

@media (max-width: 1199px) {
	.rail { display: none; }
}

/* ---------- 品牌词条带：描边大字无限横滚 ---------- */

.tape {
	overflow: hidden;
	padding: clamp(56px, 9vh, 100px) 0 0;
}

.tape__track {
	display: flex;
	width: max-content;
	animation: tape-roll 30s linear infinite;
}

.tape__track span {
	font-family: var(--font-serif);
	font-size: clamp(2.4rem, 7vw, 5.5rem);
	font-weight: 900;
	letter-spacing: 0.12em;
	white-space: nowrap;
	padding-right: 0.8em;
	color: transparent;
	-webkit-text-stroke: 1px rgba(18, 36, 60, 0.32);
}

.tape__track span em {
	-webkit-text-stroke: 0;
	color: var(--gold);
}

@keyframes tape-roll {
	to { transform: translateX(-50%); }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
	.loader { display: none; }
	.tstep { opacity: 1; transform: none; }
	.cases__claim .char, .why__core { color: inherit; }
	.viewer__thumbs button.is-active::after { animation: none; }
	.tape__track { animation: none; }
	body::after { display: none; }
}