/*
首页布局样式。
只负责首屏结构、响应式布局和加载动画。
*/

.sakura-canvas {
	display: block;
	height: 100vh;
	inset: 0;
	pointer-events: none;
	position: fixed;
	width: 100vw;
	z-index: 2;
}

.page-shell {
	align-items: center;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	min-height: 100vh;
	padding: 4rem 2rem;
	position: relative;
	width: 100%;
	z-index: 3;
}

.page-shell::before {
	content: "";
	display: block;
}

.hero {
	align-items: center;
	display: flex;
	flex-direction: column;
	max-width: 100%;
	text-align: center;
	transition:
		transform var(--duration-section) ease-in-out,
		filter var(--duration-section) ease-in-out,
		opacity var(--duration-section) ease-in-out;
}

.hero__section {
	margin-top: var(--space-section);
	position: relative;
	transition: opacity var(--duration-section) ease-in-out;
}

.hero__section::before {
	background: var(--color-border);
	content: "";
	display: block;
	height: calc(var(--space-section) + 1px);
	left: calc(50% - 1px);
	position: absolute;
	top: calc(var(--space-section) * -1 - 1px);
	width: 1px;
}

.hero__section:first-child {
	margin-top: 0;
}

.hero__section:first-child::before {
	display: none;
}

.hero__avatar-frame {
	border: solid 2px var(--color-border);
	border-radius: 100%;
	height: 5.5rem;
	line-height: 5.5rem;
	overflow: hidden;
	width: 5.5rem;
}

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

.hero__content {
	border-bottom: solid 1px var(--color-border);
	border-top: solid 1px var(--color-border);
	max-width: 100%;
}

.hero__content-inner {
	max-height: 40rem;
	overflow: hidden;
	padding: 3rem 2rem;
	transition:
		max-height var(--duration-intro) ease,
		padding var(--duration-intro) ease,
		opacity var(--duration-section) ease-in-out;
	transition-delay: 0.25s;
}

.hero__title {
	margin-bottom: 0.5rem;
}

.hero__tagline {
	font-size: 0.8rem;
	letter-spacing: var(--font-letter-spacing);
	line-height: 2;
	margin-bottom: 0;
	text-transform: uppercase;
}

.nav-list {
	border: solid 1px var(--color-border);
	border-radius: var(--radius-base);
	display: flex;
	margin-bottom: 0;
	max-width: 100%;
	padding-left: 0;
}

.nav-list__item {
	border-left: solid 1px var(--color-border);
	padding-left: 0;
}

.nav-list__item:first-child {
	border-left: 0;
}

.nav-list__link {
	border: 0;
	display: block;
	font-size: 0.8rem;
	height: 2.75rem;
	letter-spacing: var(--font-letter-spacing);
	line-height: 2.75rem;
	min-width: 7.5rem;
	padding: 0 1.25rem 0 1.45rem;
	text-transform: uppercase;
}

.nav-list__link:hover {
	background-color: var(--color-border-hover);
}

.nav-list__link:active {
	background-color: var(--color-border-active);
}

.site-footer {
	margin-top: 2rem;
	max-width: 100%;
	text-align: center;
	transition:
		transform var(--duration-section) ease-in-out,
		filter var(--duration-section) ease-in-out,
		opacity var(--duration-section) ease-in-out;
	width: 100%;
}

.site-footer__text {
	font-size: 0.6rem;
	letter-spacing: var(--font-letter-spacing);
	margin-bottom: 0;
	opacity: 0.75;
	text-transform: uppercase;
}

.site-footer__social-list {
	align-items: center;
	display: inline-flex;
	gap: 0.75rem;
	margin-top: 0.5rem;
}

.site-footer__social-link {
	align-items: center;
	display: inline-flex;
	justify-content: center;
}

.site-footer__social-link img {
	display: block;
	height: 1.875rem;
	width: 1.875rem;
}

body.is-preload .hero {
	filter: blur(0.125rem);
}

body.is-preload .hero__section {
	opacity: 0;
}

body.is-preload .hero__content-inner {
	max-height: 0;
	opacity: 0;
	padding-bottom: 0;
	padding-top: 0;
}

body.is-preload .site-footer {
	opacity: 0;
}

@media screen and (max-width: 980px) {
	.hero__tagline br {
		display: none;
	}
}

@media screen and (max-width: 736px) {
	.page-shell {
		padding: 2rem 1rem;
	}

	.hero__section {
		margin-top: 2rem;
	}

	.hero__section::before {
		height: calc(2rem + 1px);
		top: calc(-2rem - 1px);
	}

	.hero__avatar-frame {
		height: 4.75rem;
		line-height: 4.75rem;
		width: 4.75rem;
	}

	.hero__content-inner {
		padding: 2.5rem 1rem;
	}

	.hero__tagline {
		line-height: 1.875;
	}
}

@media screen and (max-width: 480px) {
	.page-shell {
		padding: 1rem;
	}

	.hero {
		padding: 1.5rem 0;
	}

	.hero__content-inner {
		padding: 2.5rem 0;
	}

	.nav-list {
		flex-direction: column;
		min-width: 10rem;
	}

	.nav-list__item {
		border-left: 0;
		border-top: solid 1px var(--color-border);
	}

	.nav-list__item:first-child {
		border-top: 0;
	}

	.nav-list__link {
		height: 3rem;
		line-height: 3rem;
		min-width: 0;
		width: 100%;
	}
}