:root {
	--bg: #0a0a0a;
	--ink: #f5f5f5;
	--mute: #8a8a8a;
	--line: rgba(255, 255, 255, 0.12);
	--line-strong: rgba(255, 255, 255, 0.28);
	--white: #ffffff;
	--black: #000000;
	--radius-pill: 999px;
	--font-display: "Syne", "PingFang TC", "Noto Sans TC", sans-serif;
	--font-body: "Plus Jakarta Sans", "PingFang TC", "Noto Sans TC", sans-serif;
	--ease: cubic-bezier(0.22, 1, 0.36, 1);
	--ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
	--nav-h: 76px;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

html,
body {
	margin: 0;
	min-height: 100%;
	background: var(--bg);
	color: var(--ink);
	font-family: var(--font-body);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body {
	overflow-x: hidden;
}

body::before {
	content: "";
	position: fixed;
	inset: 0;
	pointer-events: none;
	z-index: 0;
	background: radial-gradient(ellipse 70% 45% at 50% -8%, rgba(255, 255, 255, 0.07), transparent 58%);
	animation: atmosphere 18s var(--ease) infinite alternate;
}

@keyframes atmosphere {
	from {
		opacity: 1;
		transform: scale(1);
	}
	to {
		opacity: 0.75;
		transform: scale(1.06);
	}
}

a {
	color: inherit;
	text-decoration: none;
}

button {
	font: inherit;
	color: inherit;
	background: none;
	border: 0;
	cursor: pointer;
}

.page {
	position: relative;
	z-index: 1;
}

/* ── Cursor blob ── */
.cursor-blob {
	position: fixed;
	width: 160px;
	height: 160px;
	margin: -80px 0 0 -80px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 70%);
	pointer-events: none;
	z-index: 5;
	opacity: 0;
	transform: translate3d(-100vw, -100vh, 0);
	transition: opacity 0.4s var(--ease);
	mix-blend-mode: screen;
	will-change: transform;
}

.cursor-blob.is-on {
	opacity: 1;
}

@media (hover: none) {
	.cursor-blob {
		display: none;
	}
}

/* ── Nav ── */
.nav {
	position: fixed;
	inset: 0 0 auto;
	z-index: 50;
	height: var(--nav-h);
	padding: 0 clamp(18px, 4vw, 36px);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	background: rgba(10, 10, 10, 0.45);
	backdrop-filter: blur(16px);
	-webkit-backdrop-filter: blur(16px);
	border-bottom: 1px solid transparent;
	transition:
		background 0.45s var(--ease),
		border-color 0.45s var(--ease),
		transform 0.5s var(--ease);
	animation: rise 0.8s var(--ease) both;
}

.nav.is-scrolled {
	background: rgba(10, 10, 10, 0.82);
	border-bottom-color: var(--line);
}

.nav.is-hidden {
	transform: translateY(-110%);
}

.nav-brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	border-radius: var(--radius-pill);
	padding: 6px 10px 6px 6px;
	flex-shrink: 0;
	transition: transform 0.35s var(--ease-spring), background 0.3s var(--ease);
}

.nav-brand:hover {
	background: rgba(255, 255, 255, 0.06);
	transform: scale(1.03);
}

.nav-brand:active {
	transform: scale(0.97);
}

.nav-mark {
	width: 32px;
	height: 32px;
	display: block;
	transition: transform 0.5s var(--ease-spring);
}

.nav-brand:hover .nav-mark,
.footer-brand:hover .nav-mark {
	transform: rotate(-8deg) scale(1.05);
}

.nav-mark img {
	width: 100%;
	height: 100%;
	display: block;
	object-fit: contain;
}

.nav-word {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 1.1rem;
	letter-spacing: -0.04em;
}

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

.nav-link {
	padding: 8px 14px;
	border-radius: var(--radius-pill);
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--mute);
	transition:
		color 0.3s var(--ease),
		background 0.3s var(--ease),
		transform 0.35s var(--ease-spring);
}

.nav-link:hover,
.nav-link.is-active {
	color: var(--ink);
	background: rgba(255, 255, 255, 0.06);
}

.nav-link:hover {
	transform: translateY(-1px);
}

.nav-link:active {
	transform: scale(0.96);
}

.nav-cta {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	height: 40px;
	padding: 0 18px;
	border-radius: var(--radius-pill);
	background: var(--white);
	color: var(--black);
	font-weight: 700;
	font-size: 0.88rem;
	letter-spacing: -0.01em;
	flex-shrink: 0;
	transition:
		transform 0.35s var(--ease-spring),
		box-shadow 0.35s var(--ease);
}

.nav-cta:hover {
	transform: scale(1.05);
	box-shadow: 0 10px 28px rgba(255, 255, 255, 0.16);
}

.nav-cta:active {
	transform: scale(0.96);
}

.nav-toggle {
	display: none;
	width: 42px;
	height: 42px;
	border-radius: 50%;
	border: 1px solid var(--line);
	align-items: center;
	justify-content: center;
	transition:
		transform 0.35s var(--ease-spring),
		background 0.3s var(--ease),
		border-color 0.3s var(--ease);
}

.nav-toggle:hover {
	background: rgba(255, 255, 255, 0.08);
	border-color: var(--line-strong);
	transform: scale(1.06);
}

.nav-toggle:active {
	transform: scale(0.94);
}

.nav-toggle-bars {
	position: relative;
	width: 16px;
	height: 12px;
}

.nav-toggle-bars span {
	position: absolute;
	left: 0;
	right: 0;
	height: 2px;
	border-radius: var(--radius-pill);
	background: var(--white);
	transition: transform 0.4s var(--ease), opacity 0.3s var(--ease), top 0.4s var(--ease);
}

.nav-toggle-bars span:nth-child(1) {
	top: 0;
}
.nav-toggle-bars span:nth-child(2) {
	top: 5px;
}
.nav-toggle-bars span:nth-child(3) {
	top: 10px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) {
	top: 5px;
	transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) {
	opacity: 0;
	transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) {
	top: 5px;
	transform: rotate(-45deg);
}

.mobile-panel {
	position: fixed;
	inset: calc(var(--nav-h) + 8px) 12px auto;
	z-index: 49;
	padding: 14px;
	border-radius: 28px;
	background: rgba(18, 18, 18, 0.96);
	border: 1px solid var(--line);
	backdrop-filter: blur(18px);
	display: grid;
	gap: 4px;
	opacity: 0;
	pointer-events: none;
	transform: translateY(-10px) scale(0.97);
	transition:
		opacity 0.35s var(--ease),
		transform 0.45s var(--ease-spring);
}

.mobile-panel.is-open {
	opacity: 1;
	pointer-events: auto;
	transform: translateY(0) scale(1);
}

.mobile-panel a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 16px;
	border-radius: 18px;
	font-weight: 650;
	transition: background 0.3s var(--ease), transform 0.35s var(--ease-spring);
}

.mobile-panel a:hover {
	background: rgba(255, 255, 255, 0.06);
	transform: translateX(4px);
}

.mobile-panel a:active {
	transform: scale(0.98);
}

@media (max-width: 820px) {
	.nav-links,
	.nav > .nav-cta {
		display: none;
	}
	.nav-toggle {
		display: inline-flex;
	}
}

/* ── Hero ── */
.hero {
	min-height: 100vh;
	min-height: 100dvh;
	display: grid;
	place-items: center;
	padding: calc(var(--nav-h) + 24px) clamp(20px, 5vw, 48px) 72px;
	text-align: center;
}

.hero-content {
	display: flex;
	flex-direction: column;
	align-items: center;
	width: min(820px, 100%);
}

.hero-mark {
	width: clamp(88px, 16vw, 128px);
	height: clamp(88px, 16vw, 128px);
	margin-bottom: 22px;
	animation: mark-in 1s var(--ease) both;
}

.hero-mark img {
	width: 100%;
	height: 100%;
	display: block;
	object-fit: contain;
	animation: breathe 6s var(--ease) 1.1s infinite;
}

.brand-title {
	margin: 0;
	font-family: var(--font-display);
	font-weight: 800;
	font-size: clamp(3.8rem, 14vw, 8.5rem);
	letter-spacing: -0.07em;
	line-height: 0.9;
	animation: title-in 1s var(--ease) 0.1s both;
}

.hero-line {
	margin: 20px 0 0;
	max-width: 28ch;
	font-size: clamp(1.05rem, 2.2vw, 1.25rem);
	font-weight: 500;
	line-height: 1.55;
	color: var(--mute);
	animation: rise 0.9s var(--ease) 0.24s both;
}

.hero-actions {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 12px;
	margin-top: 32px;
	animation: rise 0.9s var(--ease) 0.36s both;
}

.scroll-hint {
	position: absolute;
	left: 50%;
	bottom: 28px;
	transform: translateX(-50%);
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 10px;
	color: var(--mute);
	font-size: 0.72rem;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	animation: rise 1s var(--ease) 0.65s both;
	transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

.scroll-hint.is-gone {
	opacity: 0;
	transform: translateX(-50%) translateY(12px);
	pointer-events: none;
}

.scroll-chip {
	width: 26px;
	height: 42px;
	border-radius: var(--radius-pill);
	border: 1px solid var(--line-strong);
	position: relative;
}

.scroll-chip i {
	position: absolute;
	left: 50%;
	top: 8px;
	width: 4px;
	height: 8px;
	margin-left: -2px;
	border-radius: var(--radius-pill);
	background: var(--white);
	animation: scroll-dot 1.6s var(--ease) infinite;
}

@keyframes scroll-dot {
	0% {
		opacity: 1;
		transform: translateY(0);
	}
	100% {
		opacity: 0;
		transform: translateY(16px);
	}
}

.hero {
	position: relative;
}

/* ── Buttons ── */
.btn {
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: 50px;
	padding: 0 24px;
	border-radius: var(--radius-pill);
	font-weight: 700;
	font-size: 0.95rem;
	letter-spacing: -0.01em;
	overflow: hidden;
	isolation: isolate;
	transition:
		transform 0.35s var(--ease-spring),
		box-shadow 0.35s var(--ease),
		background 0.3s var(--ease),
		border-color 0.3s var(--ease),
		color 0.3s var(--ease);
}

.btn::before {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: inherit;
	background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255, 255, 255, 0.28), transparent 45%);
	opacity: 0;
	transition: opacity 0.35s var(--ease);
	z-index: -1;
}

.btn:hover::before {
	opacity: 1;
}

.btn:active {
	transform: scale(0.96);
}

.btn--solid {
	background: var(--white);
	color: var(--black);
}

.btn--solid:hover {
	transform: translateY(-2px) scale(1.03);
	box-shadow: 0 14px 36px rgba(255, 255, 255, 0.14);
}

.btn--ghost {
	border: 1px solid var(--line-strong);
	background: transparent;
	color: var(--ink);
}

.btn--ghost:hover {
	border-color: var(--white);
	background: rgba(255, 255, 255, 0.06);
	transform: translateY(-2px) scale(1.03);
}

.btn-arrow {
	display: inline-block;
	transition: transform 0.35s var(--ease-spring);
}

.btn:hover .btn-arrow {
	transform: translateX(3px);
}

/* ── Sections (content, little chrome) ── */
.section {
	padding: clamp(80px, 12vw, 128px) clamp(20px, 5vw, 48px);
}

.section-inner {
	width: min(720px, 100%);
	margin: 0 auto;
}

.section-inner--wide {
	width: min(880px, 100%);
}

.kicker {
	margin: 0 0 12px;
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--mute);
}

.h2 {
	margin: 0;
	font-family: var(--font-display);
	font-weight: 780;
	font-size: clamp(1.9rem, 4.5vw, 3rem);
	letter-spacing: -0.045em;
	line-height: 1.12;
}

.lead {
	margin: 16px 0 0;
	font-size: clamp(1.02rem, 2vw, 1.15rem);
	line-height: 1.7;
	color: var(--mute);
	max-width: 40ch;
}

.section-head {
	margin-bottom: clamp(28px, 5vw, 40px);
}

.body {
	margin: 16px 0 0;
	font-size: 1.05rem;
	line-height: 1.75;
	color: var(--mute);
}

.body strong {
	color: var(--ink);
	font-weight: 650;
}

/* Product block — text first, no heavy card */
.product-block {
	display: grid;
	gap: 20px;
	padding-top: 8px;
	border-top: 1px solid var(--line);
}

.product-name {
	margin: 0;
	font-family: var(--font-display);
	font-size: clamp(2.2rem, 5vw, 3.4rem);
	font-weight: 800;
	letter-spacing: -0.05em;
	line-height: 1;
}

.product-desc {
	margin: 0;
	font-size: 1.05rem;
	line-height: 1.7;
	color: var(--mute);
	max-width: 38ch;
}

.product-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 4px;
}

/* Beliefs — plain rows */
.beliefs {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 0;
}

.belief {
	display: grid;
	grid-template-columns: 48px 1fr;
	gap: 16px;
	padding: 22px 0;
	border-top: 1px solid var(--line);
	transition: transform 0.4s var(--ease-spring);
}

.belief:last-child {
	border-bottom: 1px solid var(--line);
}

.belief:hover {
	transform: translateX(6px);
}

.belief-num {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 0.95rem;
	color: var(--mute);
	padding-top: 4px;
	transition: color 0.3s var(--ease);
}

.belief:hover .belief-num {
	color: var(--ink);
}

.belief strong {
	display: block;
	font-family: var(--font-display);
	font-size: 1.2rem;
	letter-spacing: -0.03em;
	margin-bottom: 6px;
}

.belief p {
	margin: 0;
	color: var(--mute);
	line-height: 1.65;
}

/* CTA — simple inverted band, no extra ornaments */
.cta-band {
	padding: clamp(64px, 10vw, 100px) clamp(20px, 5vw, 48px);
}

.cta-shell {
	width: min(720px, 100%);
	margin: 0 auto;
	padding: clamp(36px, 6vw, 56px) clamp(24px, 5vw, 40px);
	border-radius: 40px;
	text-align: center;
	background: var(--white);
	color: var(--black);
	transition: transform 0.45s var(--ease-spring);
}

.cta-shell:hover {
	transform: scale(1.015);
}

.cta-shell .kicker {
	color: rgba(0, 0, 0, 0.45);
}

.cta-shell .lead {
	color: rgba(0, 0, 0, 0.55);
	margin-left: auto;
	margin-right: auto;
}

.cta-shell .btn--solid {
	background: var(--black);
	color: var(--white);
	margin-top: 24px;
}

.cta-shell .btn--solid:hover {
	box-shadow: 0 14px 36px rgba(0, 0, 0, 0.22);
}

.cta-shell .btn--solid::before {
	background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255, 255, 255, 0.22), transparent 45%);
}

/* Footer */
.footer {
	padding: 40px clamp(20px, 5vw, 48px) 48px;
	border-top: 1px solid var(--line);
}

.footer-inner {
	width: min(880px, 100%);
	margin: 0 auto;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
}

.footer-brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	border-radius: var(--radius-pill);
	padding: 6px 12px 6px 6px;
	transition: background 0.3s var(--ease), transform 0.35s var(--ease-spring);
}

.footer-brand:hover {
	background: rgba(255, 255, 255, 0.06);
	transform: scale(1.03);
}

.footer-brand .nav-mark {
	width: 28px;
	height: 28px;
}

.footer-meta {
	margin: 0;
	color: var(--mute);
	font-size: 0.88rem;
}

.footer-links {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
}

.footer-links a {
	padding: 8px 12px;
	border-radius: var(--radius-pill);
	color: var(--mute);
	font-size: 0.88rem;
	font-weight: 600;
	transition:
		color 0.3s var(--ease),
		background 0.3s var(--ease),
		transform 0.35s var(--ease-spring);
}

.footer-links a:hover {
	color: var(--ink);
	background: rgba(255, 255, 255, 0.06);
	transform: translateY(-2px);
}

/* Inner pages */
.page-hero {
	padding: calc(var(--nav-h) + 64px) clamp(20px, 5vw, 48px) 32px;
	text-align: center;
}

.page-hero .brand-title {
	font-size: clamp(2.8rem, 9vw, 5rem);
}

.page-hero .hero-line {
	margin-left: auto;
	margin-right: auto;
}

.content {
	width: min(640px, 100%);
	margin: 0 auto;
	padding: 0 clamp(20px, 5vw, 48px) clamp(72px, 10vw, 100px);
}

.content p {
	margin: 0 0 18px;
	font-size: 1.08rem;
	line-height: 1.75;
	color: var(--mute);
}

.content p strong {
	color: var(--ink);
}

.link-rows {
	display: grid;
	gap: 0;
	margin-top: 28px;
}

.link-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding: 22px 0;
	border-top: 1px solid var(--line);
	transition: transform 0.4s var(--ease-spring);
}

.link-row:last-child {
	border-bottom: 1px solid var(--line);
}

.link-row:hover {
	transform: translateX(6px);
}

.link-row:active {
	transform: scale(0.99);
}

.link-row strong {
	display: block;
	font-family: var(--font-display);
	font-size: 1.2rem;
	letter-spacing: -0.03em;
}

.link-row span {
	color: var(--mute);
	font-size: 0.92rem;
}

/* Reveal */
[data-reveal] {
	opacity: 0;
	transform: translateY(28px);
	filter: blur(3px);
	transition:
		opacity 0.8s var(--ease),
		transform 0.85s var(--ease),
		filter 0.85s var(--ease);
}

[data-reveal].is-visible {
	opacity: 1;
	transform: translateY(0);
	filter: blur(0);
}

[data-reveal-stagger] > * {
	opacity: 0;
	transform: translateY(22px);
	transition:
		opacity 0.7s var(--ease),
		transform 0.75s var(--ease);
}

[data-reveal-stagger].is-visible > * {
	opacity: 1;
	transform: translateY(0);
}

[data-reveal-stagger].is-visible > *:nth-child(1) {
	transition-delay: 0.04s;
}
[data-reveal-stagger].is-visible > *:nth-child(2) {
	transition-delay: 0.12s;
}
[data-reveal-stagger].is-visible > *:nth-child(3) {
	transition-delay: 0.2s;
}
[data-reveal-stagger].is-visible > *:nth-child(4) {
	transition-delay: 0.28s;
}

/* Motion keys */
@keyframes rise {
	from {
		opacity: 0;
		transform: translateY(18px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@keyframes mark-in {
	from {
		opacity: 0;
		transform: scale(0.78) rotate(-10deg);
	}
	to {
		opacity: 1;
		transform: scale(1) rotate(0);
	}
}

@keyframes title-in {
	from {
		opacity: 0;
		transform: translateY(28px);
		filter: blur(6px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
		filter: blur(0);
	}
}

@keyframes breathe {
	0%,
	100% {
		transform: scale(1);
	}
	50% {
		transform: scale(1.04);
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
	[data-reveal],
	[data-reveal-stagger] > * {
		opacity: 1;
		transform: none;
		filter: none;
	}
}