/*
Theme Name: ChenTW Blog
Theme URI: https://chentw.net/
Author: ChenTW
Author URI: https://chentw.com/
Description: 为 chentw.net 制作的极简个人博客区块主题。PC端采用16:9横图与右侧文章信息的紧凑列表，移动端自动切换为上图下文，完整覆盖WordPress八类核心模板。
Version: 1.4.0
Requires at least: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: chentw-blog
Tags: blog, full-site-editing, featured-images, threaded-comments, translation-ready
*/

:root {
	--ctw-line: #e8e8e8;
	--ctw-muted: #727272;
	--ctw-soft: #f5f5f5;
	--ctw-text: #171717;
}

html { scroll-behavior: smooth; }
body { text-rendering: optimizeLegibility; }

a {
	text-underline-offset: 4px;
	text-decoration-thickness: 1px;
}

/* 页头与页脚 */
.ctw-site-header {
	border-bottom: 1px solid var(--ctw-line);
}

.ctw-site-brand .wp-block-site-title {
	letter-spacing: -0.02em;
}

.ctw-site-brand .wp-block-site-tagline {
	color: var(--ctw-muted);
}

.ctw-site-footer {
	border-top: 1px solid var(--ctw-line);
	color: var(--ctw-muted);
	font-size: 0.8125rem;
}

/* 页面标题区 */
.ctw-page-head {
	padding-top: clamp(2.5rem, 5vw, 4rem);
	padding-bottom: 1.5rem;
}

.ctw-page-head h1,
.ctw-page-head .wp-block-query-title,
.ctw-page-head .wp-block-post-title {
	margin: 0;
	letter-spacing: -0.04em;
}

.ctw-page-description,
.ctw-page-head .wp-block-term-description {
	margin-top: 0.65rem;
	color: var(--ctw-muted);
}

/* 分类导航 */
.ctw-category-nav {
	padding-top: 1.25rem;
	padding-bottom: 1.5rem;
	border-bottom: 1px solid var(--ctw-line);
}

.ctw-category-nav .wp-block-categories-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.625rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.ctw-category-nav .cat-item {
	margin: 0;
}

.ctw-category-nav .cat-item a {
	display: inline-flex;
	align-items: center;
	min-height: 2rem;
	padding: 0.28rem 0.75rem;
	border-radius: 999px;
	background: var(--ctw-soft);
	color: inherit;
	font-size: 0.8125rem;
	text-decoration: none;
}

.ctw-category-nav .cat-item a:hover,
.ctw-category-nav .cat-item a:focus-visible,
.ctw-category-nav .current-cat > a {
	background: var(--ctw-text);
	color: #fff;
	text-decoration: none;
}

/* 首页、归档、搜索、索引文章列表 */
.ctw-post-list {
	margin: 0;
	padding: 0;
}

.ctw-post-card {
	display: grid;
	grid-template-columns: minmax(300px, 340px) minmax(0, 1fr);
	gap: 2.125rem;
	align-items: center;
	padding: 2.625rem 0;
	border-bottom: 1px solid var(--ctw-line);
}

.ctw-post-card:not(:has(.wp-block-post-featured-image)) {
	grid-template-columns: 1fr;
}

.ctw-post-card .wp-block-post-featured-image {
	width: 100%;
	max-width: 340px;
	margin: 0;
	overflow: hidden;
	background: var(--ctw-soft);
}

.ctw-post-card .wp-block-post-featured-image a,
.ctw-post-card .wp-block-post-featured-image img {
	display: block;
	width: 100%;
	height: 100%;
}

.ctw-post-card .wp-block-post-featured-image img {
	aspect-ratio: 16 / 9;
	object-fit: cover;
	transition: transform 0.22s ease;
}

.ctw-post-card .wp-block-post-featured-image:hover img {
	transform: scale(1.02);
}

.ctw-post-copy {
	min-width: 0;
}

.ctw-post-meta {
	color: var(--ctw-muted);
	font-size: 0.8125rem;
}

.ctw-post-meta a {
	color: #505050;
	text-decoration: none;
}

.ctw-post-title {
	margin-top: 0.45rem !important;
	margin-bottom: 0.75rem !important;
	font-size: clamp(1.9rem, 2.6vw, 2.25rem);
	line-height: 1.32;
	letter-spacing: -0.025em;
}

.ctw-post-title a {
	text-decoration: none;
}

.ctw-post-title a:hover {
	text-decoration: underline;
}

.ctw-post-excerpt {
	margin: 0 !important;
	color: #515151;
	font-size: 1rem;
	line-height: 1.85;
	text-align: justify;
}

.ctw-read-more {
	margin-top: 0.85rem !important;
	font-size: 0.875rem;
}

.ctw-read-more a {
	border-bottom: 1px solid currentColor;
	text-decoration: none;
}

/* 分页 */
.ctw-pagination {
	padding-top: 2.75rem;
	padding-bottom: 3.75rem;
}

.ctw-pagination .page-numbers {
	min-width: 2.25rem;
	min-height: 2.25rem;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	text-decoration: none;
}

.ctw-pagination .current {
	background: var(--ctw-text);
	color: #fff;
}

/* 单篇文章 */
.ctw-single-header {
	padding-top: clamp(2.75rem, 6vw, 5rem);
}

.ctw-single-header .wp-block-post-title {
	font-size: clamp(2.65rem, 5vw, 3.35rem);
	line-height: 1.22;
	letter-spacing: -0.045em;
}

.ctw-single-meta {
	color: var(--ctw-muted);
	font-size: 0.875rem;
}

.ctw-single-featured-wrap {
	width: min(100%, 900px);
	margin-inline: auto;
}

.ctw-single-featured {
	margin-top: 1.75rem !important;
	margin-bottom: 2rem !important;
}

.ctw-single-featured img {
	width: 100%;
	height: auto;
	max-height: none;
	object-fit: contain;
}

/* 普通页面 */
.ctw-standard-page-header {
	padding-top: clamp(2.5rem, 6vw, 5rem);
}

.ctw-no-title-page {
	padding-top: clamp(2.5rem, 5vw, 4rem);
	padding-bottom: 4rem;
}

/* 404与无结果 */
.ctw-empty-state {
	padding-top: clamp(4rem, 10vw, 7rem);
	padding-bottom: clamp(5rem, 12vw, 8rem);
}

/* 平板与手机 */
@media (max-width: 900px) {
	.ctw-post-card {
		grid-template-columns: minmax(260px, 310px) minmax(0, 1fr);
		gap: 1.75rem;
	}
}

@media (max-width: 780px) {
	.ctw-post-card {
		grid-template-columns: 1fr;
		gap: 1.375rem;
		align-items: start;
		padding: 1.875rem 0 2.125rem;
	}

	.ctw-post-card .wp-block-post-featured-image {
		width: 100%;
		max-width: none;
	}

	.ctw-post-title {
		font-size: clamp(1.7rem, 7vw, 2rem);
	}

	.ctw-single-header .wp-block-post-title {
		font-size: clamp(2.15rem, 10vw, 2.75rem);
	}

	.ctw-entry-content {
		font-size: 1.0625rem;
	}

	.ctw-site-header-inner {
		gap: 1rem;
	}
}

@media (max-width: 560px) {
	.ctw-site-brand .wp-block-site-tagline {
		display: none;
	}

	.ctw-page-head {
		padding-top: 2.25rem;
	}

	.ctw-category-nav .wp-block-categories-list {
		gap: 0.5rem;
	}
}

/* ===== V1.3.1 首页信息区 ===== */
.ctw-home-intro {
	display: grid;
	grid-template-columns: minmax(0, 1.55fr) minmax(220px, 0.7fr) minmax(260px, 0.85fr);
	gap: clamp(2rem, 4vw, 4.5rem);
	align-items: start;
	padding-top: clamp(2.75rem, 5vw, 4.5rem);
	padding-bottom: clamp(2.25rem, 4vw, 3.5rem);
	border-bottom: 1px solid var(--ctw-line);
}

.ctw-home-intro-main,
.ctw-home-intro-categories,
.ctw-home-intro-tags {
	min-width: 0;
}

.ctw-home-intro-main h1 {
	margin: 0;
	font-size: clamp(2.55rem, 4.5vw, 4rem);
	line-height: 1.15;
	letter-spacing: -0.045em;
}

.ctw-home-intro-main p {
	max-width: 42rem;
	margin-top: 0.85rem;
	margin-bottom: 0;
	color: var(--ctw-muted);
	font-size: 1rem;
	line-height: 1.8;
}

.ctw-home-intro-label {
	margin: 0 0 0.85rem;
	color: var(--ctw-muted);
	font-size: 0.8125rem;
	font-weight: 500;
	letter-spacing: 0.06em;
}

/* 分类：全量展示 */
.ctw-home-intro-categories .wp-block-categories-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.55rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.ctw-home-intro-categories .cat-item {
	margin: 0;
}

.ctw-home-intro-categories .cat-item a {
	display: inline-flex;
	align-items: center;
	min-height: 2rem;
	padding: 0.3rem 0.72rem;
	border-radius: 999px;
	background: var(--ctw-soft);
	color: inherit;
	font-size: 0.8125rem;
	text-decoration: none;
}

.ctw-home-intro-categories .cat-item a:hover,
.ctw-home-intro-categories .cat-item a:focus-visible {
	background: var(--ctw-text);
	color: #fff;
	text-decoration: none;
}

/* 标签：WordPress 7.0 Terms Query */
.ctw-home-intro-tags .wp-block-terms-query {
	margin: 0;
}

.ctw-home-intro-tags .wp-block-term-template {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem 0.8rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.ctw-home-intro-tags .wp-block-term-name {
	margin: 0;
	font-size: 0.875rem;
	line-height: 1.7;
}

.ctw-home-intro-tags .wp-block-term-name a {
	color: #505050;
	text-decoration: none;
}

.ctw-home-intro-tags .wp-block-term-name a:hover,
.ctw-home-intro-tags .wp-block-term-name a:focus-visible {
	color: var(--ctw-text);
	text-decoration: underline;
}

/* 平板 */
@media (max-width: 900px) {
	.ctw-home-intro {
		grid-template-columns: minmax(0, 1.35fr) minmax(200px, 0.65fr);
	}

	.ctw-home-intro-tags {
		grid-column: 1 / -1;
	}
}

/* 手机：三块上下排列 */
@media (max-width: 780px) {
	.ctw-home-intro {
		display: block;
		padding-top: 2.25rem;
		padding-bottom: 2rem;
	}

	.ctw-home-intro-main,
	.ctw-home-intro-categories,
	.ctw-home-intro-tags {
		padding: 0 0 1.75rem;
		margin: 0 0 1.75rem;
		border-bottom: 1px solid var(--ctw-line);
	}

	.ctw-home-intro-tags {
		padding-bottom: 0;
		margin-bottom: 0;
		border-bottom: 0;
	}

	.ctw-home-intro-main h1 {
		font-size: clamp(2.15rem, 10vw, 2.85rem);
	}

	.ctw-home-intro-main p {
		font-size: 0.9375rem;
	}

	.ctw-home-intro-label {
		margin-bottom: 0.75rem;
	}
}


/* ===== V1.4.0 正文层级优化 ===== */
.ctw-entry-content {
	font-size: 1.125rem;
	line-height: 1.9;
}

.ctw-entry-content p {
	margin-block: 0.8em;
}

.ctw-entry-content h2 {
	margin: 1.4em 0;
	font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
	font-size: 1.625rem;
	line-height: 1.45;
	font-weight: 600;
	letter-spacing: -0.01em;
}

.ctw-entry-content h3 {
	margin: 1.2em 0;
	font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
	font-size: 1.3125rem;
	line-height: 1.5;
	font-weight: 600;
	letter-spacing: -0.005em;
}

@media (max-width: 680px) {
	.ctw-entry-content {
		font-size: 1.0625rem;
	}

	.ctw-entry-content p {
		margin-block: 0.75em;
	}

	.ctw-entry-content h2 {
		font-size: 1.4375rem;
		margin: 1.3em 0;
	}

	.ctw-entry-content h3 {
		font-size: 1.25rem;
		margin: 1.1em 0;
	}
}