/* 新闻详情页（对齐 yahe/news-detail.html，仅作用于 .site-single-post） */

.site-single-post {
	--ink: #12161b;
	--graphite: #232b33;
	--steel: #6d7681;
	--steel-line: rgba(255, 255, 255, 0.12);
	--paper: #eff1f1;
	--paper-dim: #e4e7e7;
	--white: #ffffff;
	--navy: #1d6fb8;
	--navy-deep: #123c6e;
	--brand-a: #2e8fd1;
	--brand-b: #14336b;
	--brand-grad: linear-gradient(135deg, var(--brand-a) 0%, var(--navy) 46%, var(--brand-b) 100%);
	--signal: #f2b705;
	--max: 1450px;
	--display: "Oswald", sans-serif;
	--body: "Inter", sans-serif;
	--mono: "IBM Plex Mono", monospace;
	font-family: var(--body);
	color: var(--ink);
	background: var(--paper);
	line-height: 1.55;
}

.site-single-post img {
	max-width: 100%;
	display: block;
}

.site-single-post a {
	color: inherit;
	text-decoration: none;
}

.site-single-post .wrap {
	max-width: var(--max);
	margin: 0 auto;
	padding: 0 40px;
}

.site-single-post h1,
.site-single-post h2,
.site-single-post h3,
.site-single-post h4 {
	font-family: var(--display);
	text-transform: uppercase;
	font-weight: 600;
	letter-spacing: 0.01em;
	line-height: 1.08;
}

.site-single-post .btn {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-family: var(--mono);
	font-size: 13px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	padding: 15px 28px;
	border: 1.5px solid var(--ink);
	background: transparent;
	color: var(--ink);
	cursor: pointer;
	transition: 0.25s ease;
	white-space: nowrap;
	text-decoration: none;
	box-sizing: border-box;
}

.site-single-post .btn:hover {
	background: var(--ink);
	color: var(--white);
}

.site-single-post .btn.solid {
	background: var(--brand-grad);
	border-color: var(--navy);
	color: var(--white);
}

.site-single-post .btn.solid:hover {
	background: var(--navy-deep);
	border-color: var(--navy-deep);
}

/* ---- Hero ---- */
.site-single-post .page-hero {
	position: relative;
	/* banner 延伸至顶栏下，顶部含导航高度（对齐静态页 160px） */
	padding: 160px 0 72px;
	overflow: hidden;
	background-color: var(--ink);
	background-size: cover;
	background-position: center;
}

.site-single-post .page-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(90deg, rgba(18, 22, 27, 0.86) 0%, rgba(18, 22, 27, 0.6) 50%, rgba(18, 22, 27, 0.22) 100%);
	z-index: 0;
}

.site-single-post .page-hero::after {
	content: "";
	position: absolute;
	right: -140px;
	top: -140px;
	width: 460px;
	height: 460px;
	border-radius: 50%;
	border: 1px solid rgba(255, 255, 255, 0.08);
	z-index: 0;
}

.site-single-post .page-hero .crumb {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.5);
	display: flex;
	gap: 10px;
	align-items: center;
	margin-bottom: 20px;
	position: relative;
	z-index: 1;
	flex-wrap: wrap;
}

.site-single-post .page-hero .crumb a {
	color: rgba(255, 255, 255, 0.5);
	transition: 0.2s;
}

.site-single-post .page-hero .crumb a:hover {
	color: var(--signal);
}

.site-single-post .page-hero .crumb span {
	color: rgba(255, 255, 255, 0.25);
}

.site-single-post .page-hero .crumb .now {
	color: var(--signal);
	max-width: 100%;
}

.site-single-post .page-hero .eyebrow {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--signal);
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 14px;
	position: relative;
	z-index: 1;
}

.site-single-post .page-hero .eyebrow::before {
	content: "";
	width: 26px;
	height: 2px;
	background: var(--signal);
}

.site-single-post .page-hero h1 {
	color: var(--white);
	font-size: clamp(28px, 3.6vw, 44px);
	position: relative;
	z-index: 1;
	max-width: 900px;
	margin: 0;
}

/* ---- Article ---- */
.site-single-post #article {
	background: var(--white);
	padding: 90px 0 80px;
}

.site-single-post .art-wrap {
	max-width: 980px;
	margin: 0 auto;
}

.site-single-post .art-meta {
	display: flex;
	align-items: center;
	gap: 18px;
	flex-wrap: wrap;
	margin-bottom: 20px;
}

.site-single-post .art-meta .date {
	font-family: var(--mono);
	font-size: 12.5px;
	color: var(--navy);
	letter-spacing: 0.08em;
}

.site-single-post .art-meta .cat {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	background: var(--paper);
	border: 1px solid var(--paper-dim);
	padding: 5px 12px;
	color: var(--steel);
}

.site-single-post #article > .wrap > h1,
.site-single-post .art-wrap > h1 {
	font-size: clamp(26px, 3.2vw, 40px);
	margin: 0 0 30px;
	line-height: 1.15;
}

.site-single-post .art-img {
	aspect-ratio: 16 / 9;
	overflow: hidden;
	border-radius: 8px;
	margin-bottom: 36px;
	background: var(--graphite);
}

.site-single-post .art-img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.site-single-post .art-body p {
	font-size: 15.5px;
	color: #3d4650;
	line-height: 1.85;
	margin: 0 0 22px;
}

.site-single-post .art-body h2,
.site-single-post .art-body h3,
.site-single-post .art-body h4 {
	margin: 28px 0 14px;
	color: var(--ink);
}

.site-single-post .art-body ul,
.site-single-post .art-body ol {
	margin: 0 0 22px;
	padding-left: 1.25em;
	color: #3d4650;
	font-size: 15.5px;
	line-height: 1.85;
}

.site-single-post .art-body li + li {
	margin-top: 8px;
}

.site-single-post .art-body img {
	max-width: 100%;
	height: auto;
	border-radius: 8px;
	margin: 10px 0 22px;
}

.site-single-post .art-body blockquote,
.site-single-post .art-quote {
	border-left: 3px solid var(--signal);
	background: var(--paper);
	padding: 22px 26px;
	margin: 30px 0;
	font-family: var(--display);
	font-size: 19px;
	line-height: 1.5;
	color: var(--navy);
	text-transform: uppercase;
}

.site-single-post .art-body blockquote p {
	margin: 0;
	font-size: inherit;
	color: inherit;
	line-height: inherit;
}

.site-single-post .art-actions {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 16px;
	flex-wrap: wrap;
	margin-top: 44px;
	padding-top: 30px;
	border-top: 1px solid var(--paper-dim);
}

.site-single-post .art-actions .btn {
	padding: 12px 24px;
	font-size: 12px;
}

.site-single-post .share {
	display: flex;
	gap: 10px;
	align-items: center;
}

.site-single-post .share span {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--steel);
	margin-right: 4px;
}

.site-single-post .share a {
	width: 36px;
	height: 36px;
	border: 1px solid var(--paper-dim);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: 0.3s;
}

.site-single-post .share a:hover {
	background: var(--ink);
	color: var(--white);
	border-color: var(--ink);
}

.site-single-post .share svg {
	width: 14px;
	height: 14px;
	fill: currentColor;
}

/* ---- Related ---- */
.site-single-post #relatedNews {
	background: var(--paper);
	padding: 90px 0;
}

.site-single-post .rel-head {
	display: flex;
	justify-content: space-between;
	align-items: flex-end;
	margin-bottom: 44px;
	gap: 30px;
	flex-wrap: wrap;
}

.site-single-post .rel-head .eyebrow {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--navy);
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 14px;
}

.site-single-post .rel-head .eyebrow::before {
	content: "";
	width: 26px;
	height: 2px;
	background: var(--signal);
}

.site-single-post .rel-head h2 {
	font-size: clamp(26px, 3vw, 38px);
	margin: 0;
}

.site-single-post .rel-head a.btn {
	padding: 12px 24px;
	font-size: 12px;
}

.site-single-post #relatedNews .news-track {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 30px;
}

.site-single-post #relatedNews .news-card {
	background: var(--white);
	border: 1px solid var(--paper-dim);
	display: flex;
	flex-direction: column;
	transition: 0.3s ease;
	overflow: hidden;
}

.site-single-post #relatedNews .news-card:hover {
	box-shadow: 0 18px 38px rgba(0, 0, 0, 0.1);
	transform: translateY(-6px);
}

.site-single-post #relatedNews .news-thumb {
	aspect-ratio: 16 / 10;
	overflow: hidden;
	position: relative;
	background: var(--graphite);
}

.site-single-post #relatedNews .news-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.5s ease;
}

.site-single-post #relatedNews .news-card:hover .news-thumb img {
	transform: scale(1.06);
}

.site-single-post #relatedNews .news-thumb .date-badge {
	position: absolute;
	left: 14px;
	bottom: 14px;
	background: var(--brand-grad);
	color: var(--white);
	font-family: var(--mono);
	font-size: 10.5px;
	letter-spacing: 0.08em;
	padding: 6px 10px;
}

.site-single-post #relatedNews .news-body {
	padding: 20px 22px 24px;
	display: flex;
	flex-direction: column;
	flex: 1;
}

.site-single-post #relatedNews .news-body h4 {
	font-size: 15.5px;
	margin: 0 0 10px;
	line-height: 1.3;
	min-height: 40px;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	overflow: hidden;
}

.site-single-post #relatedNews .news-card:hover .news-body h4 {
	color: var(--navy);
}

.site-single-post #relatedNews .news-body p {
	font-size: 13px;
	color: var(--steel);
	flex: 1;
	margin: 0;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 3;
	overflow: hidden;
}

.site-single-post #relatedNews .news-more {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.06em;
	margin-top: 14px;
	color: var(--ink);
	transition: 0.25s;
}

.site-single-post #relatedNews .news-card:hover .news-more {
	color: var(--signal);
}

/* ---- CTA ---- */
.site-single-post #cta {
	background: var(--brand-grad);
	color: var(--white);
	padding: 90px 0;
	text-align: center;
	position: relative;
	overflow: hidden;
}

.site-single-post #cta::before {
	content: "";
	position: absolute;
	right: -140px;
	top: -140px;
	width: 480px;
	height: 480px;
	border-radius: 50%;
	border: 1px solid rgba(255, 255, 255, 0.1);
}

.site-single-post #cta .wrap {
	position: relative;
	z-index: 1;
}

.site-single-post #cta h2 {
	font-size: clamp(26px, 3vw, 40px);
	margin: 0 0 14px;
	color: var(--white);
}

.site-single-post #cta p {
	color: rgba(255, 255, 255, 0.7);
	max-width: 480px;
	margin: 0 auto 30px;
	font-size: 15px;
}

.site-single-post #cta .btns {
	display: flex;
	gap: 14px;
	justify-content: center;
	flex-wrap: wrap;
}

.site-single-post #cta .btn {
	border-color: var(--white);
	color: var(--white);
}

.site-single-post #cta .btn:hover {
	background: var(--white);
	color: var(--ink);
}

.site-single-post #cta .btn.solid {
	background: rgba(255, 255, 255, 0.14);
	border-color: rgba(255, 255, 255, 0.4);
}

.site-single-post #cta .btn.solid:hover {
	background: var(--white);
	color: var(--ink);
	border-color: var(--white);
}

@media (max-width: 1100px) {
	.site-single-post #relatedNews .news-track {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 768px) {
	.site-single-post #article,
	.site-single-post #relatedNews,
	.site-single-post #cta {
		padding: 40px 0;
	}

	.site-single-post .rel-head {
		margin-bottom: 28px;
	}
}

@media (max-width: 680px) {
	.site-single-post .wrap {
		padding: 0 22px;
	}

	.site-single-post #article,
	.site-single-post #relatedNews,
	.site-single-post #cta {
		padding: 32px 0;
	}

	.site-single-post .rel-head {
		margin-bottom: 22px;
	}

	.site-single-post #relatedNews .news-track {
		grid-template-columns: 1fr;
	}
}