/* =========================================================================
   拾光 Shiguang — 温暖文艺风主样式
   设计基调：米白纸感底色、暖赭点缀、衬线标题、充分留白
   ========================================================================= */

:root {
	--color-bg: #faf6ef;
	--color-surface: #fffdf8;
	--color-ink: #3d3529;
	--color-ink-soft: #7a6f5d;
	--color-ink-faint: #a89a83;
	--color-accent: #b96a3b;
	--color-accent-deep: #96522a;
	--color-accent-soft: #f3e3d3;
	--color-line: #e8ddcc;
	--color-code-bg: #f4ecdf;

	--font-serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", Georgia, serif;
	--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
	--font-mono: "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

	--radius: 14px;
	--radius-sm: 8px;
	--shadow-card: 0 2px 16px rgba(120, 90, 50, 0.08);
	--shadow-card-hover: 0 8px 28px rgba(120, 90, 50, 0.14);
	--container: 1080px;
	--transition: 0.25s ease;
}

/* ---------- 基础重置 ---------- */

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

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: 16px;
	line-height: 1.75;
	color: var(--color-ink);
	background:
		radial-gradient(ellipse at top left, rgba(233, 205, 170, 0.25), transparent 55%),
		radial-gradient(ellipse at bottom right, rgba(226, 200, 165, 0.18), transparent 50%),
		var(--color-bg);
	min-height: 100vh;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: var(--color-accent);
	text-decoration: none;
	transition: color var(--transition);
}

a:hover {
	color: var(--color-accent-deep);
}

blockquote {
	margin: 1.5em 0;
	padding: 0.6em 1.2em;
	border-left: 3px solid var(--color-accent);
	background: var(--color-accent-soft);
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
	color: var(--color-ink-soft);
}

blockquote p {
	margin: 0.3em 0;
}

hr {
	border: 0;
	border-top: 1px dashed var(--color-line);
	margin: 2.5em 0;
}

table {
	width: 100%;
	border-collapse: collapse;
	margin: 1.5em 0;
	font-size: 0.95em;
}

th,
td {
	padding: 0.6em 0.9em;
	border: 1px solid var(--color-line);
	text-align: left;
}

th {
	background: var(--color-accent-soft);
	font-family: var(--font-serif);
}

.screen-reader-text {
	position: absolute !important;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
}

.container {
	max-width: var(--container);
	margin: 0 auto;
	padding: 0 24px;
}

/* ---------- 头部 ---------- */

.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(250, 246, 239, 0.92);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	min-height: 72px;
}

.site-branding {
	display: flex;
	align-items: center;
	gap: 12px;
}

.site-branding img.custom-logo {
	width: 44px;
	height: 44px;
	object-fit: contain;
	border-radius: 50%;
}

.site-title {
	margin: 0;
	font-family: var(--font-serif);
	font-size: 1.5rem;
	font-weight: 700;
	letter-spacing: 0.06em;
}

.site-title a {
	color: var(--color-ink);
}

.site-title a:hover {
	color: var(--color-accent);
}

.site-description {
	margin: 0;
	font-size: 0.78rem;
	color: var(--color-ink-faint);
	letter-spacing: 0.12em;
}

.site-nav .nav-menu {
	display: flex;
	align-items: center;
	gap: 6px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.site-nav .nav-menu a {
	display: block;
	padding: 8px 14px;
	color: var(--color-ink-soft);
	font-size: 0.95rem;
	border-radius: 999px;
	transition: color var(--transition), background var(--transition);
}

.site-nav .nav-menu a:hover,
.site-nav .current-menu-item > a,
.site-nav .current_page_item > a {
	color: var(--color-accent-deep);
	background: var(--color-accent-soft);
}

.menu-item--auth a {
	color: var(--color-accent-deep);
	font-weight: 600;
}

/* 移动端菜单按钮 */
.nav-toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	background: none;
	border: 0;
	padding: 10px;
	cursor: pointer;
}

.nav-toggle span {
	display: block;
	width: 22px;
	height: 2px;
	background: var(--color-ink);
	border-radius: 2px;
	transition: transform var(--transition), opacity var(--transition);
}

/* ---------- 布局 ---------- */

.layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 300px;
	gap: 40px;
	padding-top: 40px;
	padding-bottom: 64px;
	align-items: start;
}

.layout__side {
	position: sticky;
	top: 96px;
}

/* ---------- 首页 Hero ---------- */

.hero {
	text-align: center;
	padding: 56px 16px 44px;
}

.hero__title {
	margin: 0 0 10px;
	font-family: var(--font-serif);
	font-size: clamp(1.6rem, 4vw, 2.4rem);
	font-weight: 700;
	letter-spacing: 0.08em;
	color: var(--color-ink);
}

.hero__subtitle {
	margin: 0;
	color: var(--color-ink-faint);
	letter-spacing: 0.15em;
	font-size: 0.95rem;
}

/* ---------- 文章卡片列表 ---------- */

.post-list {
	display: flex;
	flex-direction: column;
	gap: 24px;
}

.post-card {
	display: flex;
	gap: 24px;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	box-shadow: var(--shadow-card);
	overflow: hidden;
	transition: transform var(--transition), box-shadow var(--transition);
}

.post-card:hover {
	transform: translateY(-3px);
	box-shadow: var(--shadow-card-hover);
}

.post-card__thumb {
	flex: 0 0 220px;
}

.post-card__thumb img {
	width: 100%;
	height: 100%;
	min-height: 170px;
	object-fit: cover;
}

.post-card__body {
	flex: 1;
	padding: 22px 24px;
	min-width: 0;
}

.post-meta {
	font-size: 0.82rem;
	color: var(--color-ink-faint);
	margin-bottom: 6px;
}

.post-meta a {
	color: var(--color-accent);
}

.post-meta__sep {
	margin: 0 6px;
}

.post-card__title {
	margin: 0 0 8px;
	font-family: var(--font-serif);
	font-size: 1.3rem;
	line-height: 1.45;
}

.post-card__title a {
	color: var(--color-ink);
}

.post-card__title a:hover {
	color: var(--color-accent);
}

.post-card__excerpt {
	margin: 0 0 14px;
	color: var(--color-ink-soft);
	font-size: 0.94rem;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.post-card__more {
	font-size: 0.88rem;
	font-weight: 600;
	color: var(--color-accent);
}

/* ---------- 分页 ---------- */

.pagination,
.navigation.pagination {
	margin-top: 40px;
}

.nav-links {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 8px;
}

.page-numbers {
	display: inline-block;
	padding: 8px 15px;
	border: 1px solid var(--color-line);
	border-radius: 999px;
	background: var(--color-surface);
	color: var(--color-ink-soft);
	font-size: 0.9rem;
	transition: all var(--transition);
}

.page-numbers.current,
.page-numbers:hover {
	background: var(--color-accent);
	border-color: var(--color-accent);
	color: #fff;
}

/* ---------- 文章详情 ---------- */

.single-post {
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	box-shadow: var(--shadow-card);
	padding: 44px 48px;
}

.single-post__header {
	margin-bottom: 28px;
	padding-bottom: 22px;
	border-bottom: 1px dashed var(--color-line);
}

.single-post__title {
	margin: 6px 0 0;
	font-family: var(--font-serif);
	font-size: clamp(1.5rem, 3.4vw, 2.1rem);
	line-height: 1.4;
	letter-spacing: 0.03em;
}

.single-post__thumbnail img {
	border-radius: var(--radius-sm);
	margin-bottom: 28px;
}

.single-post__footer {
	margin-top: 36px;
	padding-top: 20px;
	border-top: 1px dashed var(--color-line);
}

.prose {
	font-size: 1.02rem;
	line-height: 1.9;
	color: var(--color-ink);
}

.prose h1,
.prose h2,
.prose h3,
.prose h4,
.prose h5,
.prose h6 {
	font-family: var(--font-serif);
	line-height: 1.45;
	margin: 1.7em 0 0.7em;
	color: var(--color-ink);
}

.prose h2 {
	font-size: 1.45rem;
	padding-left: 12px;
	border-left: 4px solid var(--color-accent);
}

.prose h3 {
	font-size: 1.2rem;
}

.prose p {
	margin: 0.9em 0;
}

.prose ul,
.prose ol {
	padding-left: 1.6em;
	margin: 0.9em 0;
}

.prose li {
	margin: 0.35em 0;
}

.prose img {
	border-radius: var(--radius-sm);
	margin: 1.2em auto;
	box-shadow: var(--shadow-card);
}

.prose code {
	font-family: var(--font-mono);
	font-size: 0.88em;
	background: var(--color-code-bg);
	padding: 0.15em 0.45em;
	border-radius: 5px;
	color: var(--color-accent-deep);
}

.prose pre {
	background: #2f2a24;
	color: #f0e9dd;
	padding: 20px 22px;
	border-radius: var(--radius-sm);
	overflow-x: auto;
	line-height: 1.65;
	font-size: 0.88rem;
}

.prose pre code {
	background: transparent;
	padding: 0;
	color: inherit;
	font-size: inherit;
}

/* ---------- 文章导航 ---------- */

.post-navigation {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	margin-top: 28px;
}

.post-navigation__prev,
.post-navigation__next {
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-sm);
	padding: 14px 18px;
	font-size: 0.92rem;
}

.post-navigation__next {
	text-align: right;
}

.post-navigation__prev span,
.post-navigation__next span {
	display: block;
	font-size: 0.78rem;
	color: var(--color-ink-faint);
	margin-bottom: 4px;
}

.post-navigation a {
	color: var(--color-ink);
	font-weight: 600;
}

.post-navigation a:hover {
	color: var(--color-accent);
}

/* ---------- 归档头部 ---------- */

.archive-header {
	text-align: center;
	padding: 30px 16px 34px;
}

.archive-header__kicker {
	margin: 0;
	font-size: 0.8rem;
	letter-spacing: 0.35em;
	color: var(--color-ink-faint);
	text-transform: uppercase;
}

.archive-header__title {
	margin: 8px 0;
	font-family: var(--font-serif);
	font-size: clamp(1.5rem, 3.6vw, 2.2rem);
	color: var(--color-ink);
}

.archive-header__desc,
.archive-header__count {
	margin: 4px 0 0;
	color: var(--color-ink-soft);
	font-size: 0.92rem;
}

.archive-search {
	max-width: 480px;
	margin: 0 auto 28px;
}

.page-header {
	text-align: center;
	padding: 30px 0 6px;
}

.page-title {
	font-family: var(--font-serif);
	font-size: 1.8rem;
	margin: 0;
}

/* ---------- 侧栏 ---------- */

.sidebar {
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.sidebar-card {
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	box-shadow: var(--shadow-card);
	padding: 22px 24px;
}

.widget-title {
	margin: 0 0 12px;
	font-family: var(--font-serif);
	font-size: 1.05rem;
	letter-spacing: 0.06em;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--color-line);
}

.widget {
	font-size: 0.93rem;
}

.widget ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.widget ul li {
	padding: 6px 0;
	border-bottom: 1px dashed var(--color-line);
}

.widget ul li:last-child {
	border-bottom: 0;
}

.tag-cloud {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.tag-pill {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	padding: 4px 12px;
	background: var(--color-accent-soft);
	border-radius: 999px;
	font-size: 0.82rem;
	color: var(--color-accent-deep);
	transition: all var(--transition);
}

.tag-pill:hover {
	background: var(--color-accent);
	color: #fff;
}

.tag-pill__count {
	font-size: 0.72rem;
	opacity: 0.7;
}

/* ---------- 按钮 ---------- */

.btn {
	display: inline-block;
	margin-top: 12px;
	padding: 9px 24px;
	background: var(--color-accent);
	color: #fff;
	border-radius: 999px;
	font-size: 0.9rem;
	letter-spacing: 0.08em;
	transition: all var(--transition);
}

.btn:hover {
	background: var(--color-accent-deep);
	color: #fff;
	transform: translateY(-1px);
}

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

.btn--ghost:hover {
	background: var(--color-accent);
	color: #fff;
}

/* ---------- 搜索表单 ---------- */

.search-form {
	display: flex;
	gap: 0;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: 999px;
	overflow: hidden;
	padding: 4px;
}

.search-form__input {
	flex: 1;
	border: 0;
	background: transparent;
	padding: 9px 18px;
	font-size: 0.94rem;
	color: var(--color-ink);
	outline: none;
	font-family: inherit;
}

.search-form__submit {
	border: 0;
	background: var(--color-accent);
	color: #fff;
	padding: 9px 20px;
	border-radius: 999px;
	cursor: pointer;
	font-size: 0.88rem;
	transition: background var(--transition);
	font-family: inherit;
}

.search-form__submit:hover {
	background: var(--color-accent-deep);
}

/* ---------- 空状态 / 404 ---------- */

.empty-state {
	text-align: center;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	padding: 72px 24px;
}

.empty-state__icon {
	font-size: 2.6rem;
	margin: 0 0 8px;
	color: var(--color-accent);
}

.error-404__icon {
	font-family: var(--font-serif);
	font-weight: 700;
	letter-spacing: 0.1em;
}

.error-404__search {
	max-width: 420px;
	margin: 20px auto 8px;
}

/* ---------- 评论 ---------- */

.comments-area {
	margin-top: 36px;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	padding: 32px 36px;
}

.comments-area__title,
.comment-reply-title {
	font-family: var(--font-serif);
	font-size: 1.2rem;
	margin: 0 0 18px;
}

.comment-list {
	list-style: none;
	margin: 0 0 24px;
	padding: 0;
}

.comment-list .comment {
	border-bottom: 1px dashed var(--color-line);
	padding: 16px 0;
}

.comment-list .children {
	list-style: none;
	padding-left: 32px;
}

.comment-author img {
	border-radius: 50%;
	float: left;
	margin-right: 10px;
}

.comment-meta {
	font-size: 0.8rem;
	color: var(--color-ink-faint);
}

.comment-content {
	clear: both;
	padding-top: 8px;
	font-size: 0.95rem;
}

.comment-form p {
	margin: 12px 0;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
	width: 100%;
	padding: 11px 14px;
	border: 1px solid var(--color-line);
	border-radius: var(--radius-sm);
	background: var(--color-bg);
	font-family: inherit;
	font-size: 0.94rem;
	color: var(--color-ink);
}

.comment-form input:focus,
.comment-form textarea:focus {
	outline: none;
	border-color: var(--color-accent);
}

.comment-form .submit {
	background: var(--color-accent);
	color: #fff;
	border: 0;
	padding: 10px 30px;
	border-radius: 999px;
	font-size: 0.92rem;
	cursor: pointer;
	transition: background var(--transition);
	font-family: inherit;
}

.comment-form .submit:hover {
	background: var(--color-accent-deep);
}

/* ---------- 关于页 ---------- */

.about-page {
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	box-shadow: var(--shadow-card);
	padding: 48px 52px;
}

.about-page__hero {
	text-align: center;
	padding-bottom: 26px;
	border-bottom: 1px dashed var(--color-line);
	margin-bottom: 30px;
}

.about-page__avatar {
	width: 104px;
	height: 104px;
	margin: 0 auto 16px;
	border-radius: 50%;
	overflow: hidden;
	border: 3px solid var(--color-accent-soft);
	box-shadow: var(--shadow-card);
}

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

.about-page__title {
	margin: 0;
	font-family: var(--font-serif);
	font-size: clamp(1.6rem, 3.6vw, 2.2rem);
}

.about-page__lede {
	margin: 10px 0 0;
	color: var(--color-ink-soft);
	letter-spacing: 0.05em;
}

.about-page__tags {
	margin-top: 40px;
	padding-top: 24px;
	border-top: 1px dashed var(--color-line);
}

.about-page__tags-title {
	font-family: var(--font-serif);
	font-size: 1.1rem;
	margin: 0 0 14px;
}

/* ---------- 页脚 ---------- */

.site-footer {
	border-top: 1px solid var(--color-line);
	background: rgba(255, 253, 248, 0.6);
	padding: 30px 0;
}

.site-footer__inner {
	text-align: center;
}

.footer-menu {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 4px 18px;
	list-style: none;
	margin: 0 0 10px;
	padding: 0;
	font-size: 0.88rem;
}

.site-footer__copy {
	margin: 0;
	font-size: 0.82rem;
	color: var(--color-ink-faint);
	letter-spacing: 0.08em;
}

.site-footer__sep {
	margin: 0 8px;
}

/* ---------- 返回顶部 ---------- */

.back-to-top {
	position: fixed;
	right: 26px;
	bottom: 30px;
	width: 42px;
	height: 42px;
	border-radius: 50%;
	border: 1px solid var(--color-line);
	background: var(--color-surface);
	color: var(--color-accent);
	font-size: 1.1rem;
	cursor: pointer;
	box-shadow: var(--shadow-card);
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: all var(--transition);
	z-index: 90;
}

.back-to-top.is-visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.back-to-top:hover {
	background: var(--color-accent);
	color: #fff;
	border-color: var(--color-accent);
}

/* ---------- 响应式 ---------- */

@media (max-width: 900px) {
	.layout {
		grid-template-columns: 1fr;
		gap: 28px;
	}

	.layout__side {
		position: static;
	}

	.single-post,
	.about-page {
		padding: 28px 22px;
	}
}

@media (max-width: 720px) {
	.nav-toggle {
		display: flex;
	}

	.site-nav {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--color-surface);
		border-bottom: 1px solid var(--color-line);
		box-shadow: var(--shadow-card-hover);
		display: none;
	}

	.site-nav.is-open {
		display: block;
	}

	.site-nav .nav-menu {
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		padding: 10px 18px;
	}

	.site-nav .nav-menu a {
		padding: 12px 10px;
		border-radius: var(--radius-sm);
	}

	.post-card {
		flex-direction: column;
		gap: 0;
	}

	.post-card__thumb {
		flex: none;
	}

	.post-card__thumb img {
		min-height: 0;
		height: 200px;
	}

	.single-post,
	.about-page,
	.comments-area {
		padding: 24px 18px;
	}

	.post-navigation {
		grid-template-columns: 1fr;
	}

	.post-navigation__next {
		text-align: left;
	}

	.back-to-top {
		right: 16px;
		bottom: 18px;
	}
}