/* ==========================================================================
   Zhihuilu Child · 结构与导航
   覆盖 GeneratePress 原生 header / nav / footer，并定义内页版式。
   所有颜色走 style.css 的语义令牌，不在此层写死品牌色。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 站点头部
   -------------------------------------------------------------------------- */

.site-header {
	position: relative;
	background: var(--zhl-page);
	border-bottom: 1px solid var(--zhl-line);
	z-index: 100;
}

/* 头部内层：与 .zhl-wrap 对齐（GP 的 grid-container 自带 padding，这里归零改为自身宽度控制） */
.site-header .inside-header {
	padding: 0;
	width: var(--zhl-container);
	max-width: none;
	margin-inline: auto;
	min-height: var(--zhl-header-h);
	display: flex;
	align-items: center;
	gap: 24px;
}

/* GP 的 inside-navigation 是 grid-container，重置掉自身的宽度与内边距 */
.main-navigation .inside-navigation {
	width: 100%;
	max-width: none;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 12px;
}

/* 粘性头部（由 GP 设置开启时生效） */
.sticky-enabled .site-header {
	backdrop-filter: saturate(1.6) blur(10px);
	background: color-mix(in srgb, var(--zhl-page) 92%, transparent);
}

.site-branding {
	display: flex;
	align-items: center;
	gap: 12px;
	flex: none;
}

/* GP 的自定义 logo：限制高度，避免大图撑开页头 */
.site-branding .custom-logo-link {
	display: flex;
	align-items: center;
	flex: none;
}

.site-branding .custom-logo {
	width: auto;
	max-height: 40px;
	max-width: 180px;
	height: auto;
}

.site-branding .main-title,
.site-branding .site-title {
	margin: 0;
	font-size: 1.12rem;
	font-weight: 800;
	letter-spacing: -0.02em;
	line-height: 1.2;
}

.site-branding .main-title a,
.site-branding .site-title a {
	color: var(--zhl-ink);
	text-decoration: none;
}

.site-branding .main-title a:hover { color: var(--zhl-brand); }

.site-description {
	margin: 2px 0 0;
	font-size: 0.74rem;
	line-height: 1.35;
	color: var(--zhl-ink-faint);
	letter-spacing: 0.02em;
}

/* 品牌标记：不用图片，纯 CSS 方块 + 字，避免额外请求与图片依赖 */
.zhl-logo {
	width: 38px;
	height: 38px;
	flex: none;
	display: grid;
	place-items: center;
	border-radius: 9px;
	background: var(--zhl-brand);
	color: var(--zhl-on-brand);
	font-weight: 800;
	font-size: 1rem;
	letter-spacing: -0.02em;
	text-decoration: none;
	box-shadow: 0 6px 16px color-mix(in srgb, var(--zhl-brand) 24%, transparent);
}

.zhl-logo:hover { color: var(--zhl-on-brand); }

/* --------------------------------------------------------------------------
   2. 主导航
   GP 3.6 把 ul.menu 直接放在 .inside-navigation 下（没有 .main-nav 包裹层），
   部分版本有。两种结构都用逗号覆盖，避免主题升级后再次整段失效。
   按钮的显隐交给 GP（它用 #mobile-menu-control-wrapper 的 data-nav 按钮控制），
   这里只管展开后的面板外观，不跟它抢点击。
   -------------------------------------------------------------------------- */

.main-navigation {
	position: relative;
	flex: 1 1 auto;
	display: flex;
	justify-content: flex-end;
	align-items: center;
	background: transparent;
}

/* 移动端按钮容器本身也是 .main-navigation，不能让它参与主轴分配 */
.main-navigation.mobile-menu-control-wrapper {
	position: static;
	flex: none;
	width: auto;
}

.main-navigation:not(.mobile-menu-control-wrapper) .inside-navigation {
	width: 100%;
	max-width: none;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 12px;
}

/* GP 在桌面会把移动按钮容器藏起来；预览/精简环境下也要保证不出现 */
@media (min-width: 769px) {
	.main-navigation.mobile-menu-control-wrapper {
		display: none;
	}
}

/* --- 一级 --- */
.main-navigation .menu,
.main-navigation .main-nav > ul {
	display: flex;
	align-items: center;
	gap: 2px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.main-navigation .menu > li,
.main-navigation .main-nav > ul > li {
	position: relative;
	margin: 0;
	list-style: none;
}

.main-navigation .menu > li > a,
.main-navigation .main-nav > ul > li > a {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 10px 12px;
	color: var(--zhl-ink);
	font-size: 0.93rem;
	font-weight: 600;
	line-height: 1.4;
	text-decoration: none;
	border-radius: var(--zhl-radius-btn);
	transition: color 0.16s ease, background 0.16s ease;
}

.main-navigation .menu > li > a:hover,
.main-navigation .menu > li.current-menu-item > a,
.main-navigation .menu > li.current-menu-ancestor > a {
	color: var(--zhl-brand);
	background: color-mix(in srgb, var(--zhl-brand) 7%, transparent);
}

.main-navigation .dropdown-menu-toggle {
	padding: 0;
	margin-left: -2px;
	background: none;
	border: 0;
	color: currentColor;
	line-height: 1;
}

.main-navigation .dropdown-menu-toggle svg {
	width: 11px;
	height: 11px;
	opacity: 0.6;
}

/* --- 二级 --- */
.main-navigation .menu > li > ul,
.main-navigation .main-nav > ul > li > ul {
	position: absolute;
	top: calc(100% + 8px);
	left: 0;
	min-width: 232px;
	display: block;
	padding: 8px;
	background: var(--zhl-page);
	border: 1px solid var(--zhl-line);
	border-radius: var(--zhl-radius-lg);
	box-shadow: var(--zhl-shadow);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-6px);
	transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
	z-index: 120;
}

.main-navigation .menu > li:hover > ul,
.main-navigation .menu > li:focus-within > ul,
.main-navigation .menu > li.sfHover > ul {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.main-navigation .menu ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.main-navigation .menu ul li {
	width: 100%;
	margin: 0;
}

.main-navigation .menu ul li > a {
	display: flex;
	width: 100%;
	padding: 9px 12px;
	border-radius: var(--zhl-radius-btn);
	font-size: 0.9rem;
	font-weight: 500;
	color: var(--zhl-ink);
	text-decoration: none;
	white-space: normal;
}

.main-navigation .menu ul li > a:hover {
	background: var(--zhl-paper);
	color: var(--zhl-brand);
}

/* --- 主导航 CTA：菜单最后一项自动获得按钮样式 --- */
.main-navigation .menu > li.zhl-nav-cta > a {
	background: var(--zhl-brand);
	color: var(--zhl-on-brand);
	padding: 10px 18px;
	margin-left: 10px;
	box-shadow: 0 6px 16px color-mix(in srgb, var(--zhl-brand) 22%, transparent);
}

.main-navigation .menu > li.zhl-nav-cta > a:hover {
	background: var(--zhl-brand-deep);
	color: var(--zhl-on-brand);
	transform: translateY(-1px);
}

/* --- 平板：收一点间距，7 项不挤爆 --- */
@media (min-width: 769px) and (max-width: 1100px) {
	.main-navigation .menu { gap: 0; }

	.main-navigation .menu > li > a {
		padding: 9px 8px;
		font-size: 0.87rem;
	}
}

/* --- 移动端：只改面板外观 ---
   显隐由 GP 的 toggled-on 控制；三种可能的挂载位置都兜住，
   无论它加在 nav、ul 还是 .main-nav 上都能展开。 */
@media (max-width: 768px) {
	.main-navigation:not(.mobile-menu-control-wrapper) {
		position: static;
		flex: none;
	}

	.main-navigation .menu,
	.main-navigation .main-nav > ul {
		position: absolute;
		left: 0;
		right: 0;
		top: 100%;
		display: none;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		max-height: calc(100dvh - var(--zhl-header-h));
		overflow-y: auto;
		padding: 10px var(--zhl-gutter) 16px;
		background: var(--zhl-page);
		border-bottom: 1px solid var(--zhl-line);
		box-shadow: var(--zhl-shadow-sm);
		z-index: 130;
	}

	#site-navigation.toggled-on .menu,
	.main-navigation.toggled-on .menu,
	.main-navigation .menu.toggled-on,
	.main-navigation .main-nav.toggled-on > ul {
		display: flex;
	}

	.main-navigation .menu > li {
		width: 100%;
		border-bottom: 1px solid var(--zhl-line);
	}

	.main-navigation .menu > li:last-child { border-bottom: 0; }

	.main-navigation .menu > li > a {
		display: flex;
		justify-content: space-between;
		padding: 14px 4px;
		font-size: 1rem;
		border-radius: 0;
	}

	.main-navigation .menu > li > a:hover,
	.main-navigation .menu > li.current-menu-item > a {
		background: transparent;
	}

	.main-navigation .menu > li > ul {
		position: static;
		opacity: 1;
		visibility: visible;
		transform: none;
		min-width: 0;
		padding: 0 0 10px 14px;
		border: 0;
		border-radius: 0;
		box-shadow: none;
		background: transparent;
	}

	.main-navigation .menu ul li { border-bottom: 0; }

	.main-navigation .menu ul li > a {
		padding: 9px 4px;
		font-size: 0.92rem;
		color: var(--zhl-ink-soft);
	}

	.main-navigation .menu > li.zhl-nav-cta > a {
		margin: 14px 0 4px;
		justify-content: center;
		border-radius: var(--zhl-radius-btn);
	}
}

/* --------------------------------------------------------------------------
   3. 页脚
   由三部分组成：品牌区（简介 + 联系方式）/ 三列菜单 / 底部条（版权 · 备案 · 说明）。
   数据全部来自后台：菜单（外观 → 菜单）与 Customizer（外观 → 自定义 → 页脚）。
   GP 自带的 .site-footer 只输出一行版权，这里已接管，故关闭它避免重复。
   -------------------------------------------------------------------------- */

.zhl .site-footer {
	display: none;
}

.zhl-footer {
	background: var(--zhl-ink);
	color: color-mix(in srgb, #fff 62%, transparent);
	font-size: 0.88rem;
}

.zhl-footer__grid {
	display: grid;
	grid-template-columns: minmax(0, 1.55fr) repeat(3, minmax(0, 1fr));
	gap: clamp(26px, 4vw, 56px);
	padding-block: clamp(44px, 5.5vw, 72px) clamp(34px, 4.2vw, 54px);
}

/* --- 品牌区 --- */
.zhl-footer__brand { min-width: 0; }

.zhl-footer__mark {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 15px;
	text-decoration: none;
}

.zhl-footer__mark .zhl-logo {
	width: 32px;
	height: 32px;
	font-size: 0.9rem;
	box-shadow: none;
}

.zhl-footer__name {
	color: #fff;
	font-size: 1.05rem;
	font-weight: 800;
	letter-spacing: -0.015em;
}

.zhl-footer__mark:hover .zhl-footer__name { color: #fff; }

.zhl-footer__about {
	margin: 0 0 16px;
	max-width: 34ch;
	line-height: 1.78;
	color: color-mix(in srgb, #fff 64%, transparent);
}

.zhl-footer__contact {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 6px;
	font-size: 0.8rem;
	line-height: 1.6;
	color: color-mix(in srgb, #fff 52%, transparent);
}

/* --- 三列菜单 --- */
.zhl-footer__col h4 {
	margin: 0 0 15px;
	color: #fff;
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: color-mix(in srgb, #fff 78%, transparent);
}

.zhl-footer__links {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 9px;
}

.zhl-footer__links li { margin: 0; }

.zhl-footer__links a {
	display: inline-block;
	color: color-mix(in srgb, #fff 68%, transparent);
	font-size: 0.86rem;
	line-height: 1.5;
	text-decoration: none;
	transition: color 0.16s ease, transform 0.16s ease;
}

.zhl-footer__links a:hover {
	color: #fff;
	transform: translateX(2px);
}

/* --- 底部条 --- */
.zhl-footer__bottom {
	border-top: 1px solid rgb(255 255 255 / 0.1);
}

.zhl-footer__bottom-inner {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 8px 26px;
	padding-block: 17px;
	font-size: 0.76rem;
	line-height: 1.6;
	color: color-mix(in srgb, #fff 52%, transparent);
}

.zhl-footer__bottom-inner p { margin: 0; }

.zhl-footer__icp a,
.zhl-footer__icp { color: inherit; }

.zhl-footer__note { margin-left: auto; }

@media (max-width: 900px) {
	.zhl-footer__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 30px 24px;
	}

	.zhl-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
	/* 保持两列：单列会把页脚拉到 900px 以上，滑太久 */
	.zhl-footer__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 26px 20px;
	}

	.zhl-footer__brand { grid-column: 1 / -1; }

	.zhl-footer__bottom-inner {
		flex-direction: column;
		align-items: flex-start;
		gap: 6px;
	}

	.zhl-footer__note { margin-left: 0; }
}

/* --------------------------------------------------------------------------
   4. 内页版式
   -------------------------------------------------------------------------- */

.site-content { padding-block: clamp(32px, 4vw, 56px); }

/* 页面头部（标题 + 摘要） */
.zhl-page-hero {
	background: var(--zhl-paper);
	border-bottom: 1px solid var(--zhl-line);
	padding-block: clamp(40px, 5vw, 72px);
}

.zhl-page-hero .zhl-wrap { max-width: var(--zhl-container); }

.zhl-page-hero h1 {
	margin-bottom: 12px;
	max-width: 22ch;
}

.zhl-page-hero p {
	max-width: 62ch;
	font-size: 1.04rem;
	color: var(--zhl-ink-soft);
	margin: 0;
}

/* 面包屑 */
.zhl-crumbs {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
	list-style: none;
	margin: 0 0 18px;
	padding: 0;
	font-size: 0.8rem;
	color: var(--zhl-ink-faint);
}

.zhl-crumbs li { display: inline-flex; align-items: center; gap: 8px; }
.zhl-crumbs li + li::before { content: "/"; color: var(--zhl-line-strong); }
.zhl-crumbs a { color: var(--zhl-ink-soft); text-decoration: none; }
.zhl-crumbs a:hover { color: var(--zhl-brand); }

/* 正文 */
.entry-content {
	font-size: 1.02rem;
	line-height: 1.85;
	color: var(--zhl-ink-soft);
}

.entry-content > * { max-width: var(--zhl-read); }

.entry-content h2 {
	margin-top: 2.1em;
	font-size: clamp(1.35rem, 1.2rem + 0.7vw, 1.75rem);
}

.entry-content h3 { margin-top: 1.7em; }

.entry-content ul,
.entry-content ol {
	padding-left: 1.2em;
	margin: 0 0 1.3em;
}

.entry-content li { margin-bottom: 0.5em; }

.entry-content blockquote {
	margin: 1.8em 0;
	padding: 4px 0 4px 20px;
	border-left: 3px solid var(--zhl-brand);
	color: var(--zhl-ink);
	font-size: 1.04rem;
}

.entry-content table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.93rem;
	margin: 0 0 1.6em;
}

.entry-content th,
.entry-content td {
	padding: 12px 14px;
	border-bottom: 1px solid var(--zhl-line);
	text-align: left;
	vertical-align: top;
}

.entry-content th {
	background: var(--zhl-paper);
	color: var(--zhl-ink);
	font-weight: 700;
	font-size: 0.85rem;
	letter-spacing: 0.01em;
}

/* 内页两栏：正文 + 侧栏 */
.zhl-with-aside {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 300px;
	gap: clamp(28px, 4vw, 56px);
	align-items: start;
}

.zhl-aside {
	position: sticky;
	top: calc(var(--zhl-header-h) + 20px);
	display: grid;
	gap: 16px;
}

.zhl-aside-card {
	background: var(--zhl-paper);
	border: 1px solid var(--zhl-line);
	border-radius: var(--zhl-radius-lg);
	padding: 22px;
}

.zhl-aside-card h3 {
	font-size: 1rem;
	margin-bottom: 8px;
}

.zhl-aside-card p {
	font-size: 0.88rem;
	line-height: 1.7;
	margin-bottom: 14px;
}

@media (max-width: 900px) {
	.zhl-with-aside { grid-template-columns: 1fr; }
	.zhl-aside { position: static; }
}

/* 文章列表 */
.zhl-post-list {
	display: grid;
	gap: 0;
	border-top: 1px solid var(--zhl-line);
}

.zhl-post-item {
	padding: 22px 0;
	border-bottom: 1px solid var(--zhl-line);
}

.zhl-post-item h2 {
	font-size: 1.18rem;
	margin-bottom: 6px;
}

.zhl-post-item h2 a { color: var(--zhl-ink); text-decoration: none; }
.zhl-post-item h2 a:hover { color: var(--zhl-brand); }

.zhl-post-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin: 0 0 8px;
	font-size: 0.78rem;
	color: var(--zhl-ink-faint);
	letter-spacing: 0.01em;
}

.zhl-post-item p { font-size: 0.94rem; margin: 0; }

/* 分页 */
.paging-navigation .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding: 0 10px;
	margin-right: 6px;
	border: 1px solid var(--zhl-line);
	border-radius: var(--zhl-radius-btn);
	color: var(--zhl-ink-soft);
	text-decoration: none;
	font-size: 0.9rem;
}

.paging-navigation .page-numbers.current,
.paging-navigation .page-numbers:hover {
	background: var(--zhl-brand);
	border-color: var(--zhl-brand);
	color: var(--zhl-on-brand);
}

/* 404 */
.zhl-404 {
	text-align: center;
	padding-block: clamp(56px, 9vw, 120px);
}

.zhl-404 h1 { margin-bottom: 14px; }
.zhl-404 p { max-width: 48ch; margin-inline: auto; margin-bottom: 26px; }

/* --------------------------------------------------------------------------
   5. 内页补充件
   -------------------------------------------------------------------------- */

/* 内页也脱离 GP 的固定容器，由 .zhl-wrap 统一控制宽度 */
.zhl #page.site {
	max-width: none;
	width: 100%;
	padding: 0;
	margin: 0;
}

.zhl .content-area,
.zhl #primary { width: 100%; }

.zhl .site-content { padding: 0; }

/* 侧栏列表 */
.zhl-aside-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 2px;
}

.zhl-aside-list li + li { border-top: 1px solid var(--zhl-line); }

.zhl-aside-list a {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
	padding: 10px 0;
	color: var(--zhl-ink);
	text-decoration: none;
	font-size: 0.88rem;
	line-height: 1.55;
}

.zhl-aside-list a:hover { color: var(--zhl-brand); }

.zhl-aside-list small {
	flex: none;
	font-size: 0.72rem;
	color: var(--zhl-ink-faint);
}

/* 文章封面 */
.zhl-post-cover {
	background: var(--zhl-paper);
	padding-block: clamp(20px, 3vw, 36px);
}

.zhl-post-cover img {
	display: block;
	width: 100%;
	max-height: 460px;
	object-fit: cover;
	border-radius: var(--zhl-radius-lg);
}

/* 分页导航（文章内） */
.zhl-page-links {
	display: flex;
	gap: 8px;
	margin-top: 24px;
	font-size: 0.9rem;
}

.zhl-page-links a,
.zhl-page-links > span {
	padding: 6px 12px;
	border: 1px solid var(--zhl-line);
	border-radius: var(--zhl-radius-btn);
	text-decoration: none;
	color: var(--zhl-ink-soft);
}

/* 搜索表单 */
.zhl-search {
	display: flex;
	gap: 8px;
	max-width: 460px;
}

.zhl-search input[type="search"] {
	flex: 1 1 auto;
	min-width: 0;
	padding: 10px 14px;
	font-family: inherit;
	font-size: 0.92rem;
	color: var(--zhl-ink);
	background: var(--zhl-page);
	border: 1px solid var(--zhl-line-strong);
	border-radius: var(--zhl-radius-btn);
}

.zhl-search input[type="search"]:focus {
	outline: none;
	border-color: var(--zhl-brand);
	box-shadow: var(--zhl-ring);
}

.zhl-search__btn {
	flex: none;
	padding: 10px 18px;
	font-family: inherit;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--zhl-on-brand);
	background: var(--zhl-brand);
	border: 0;
	border-radius: var(--zhl-radius-btn);
	cursor: pointer;
}

.zhl-search__btn:hover { background: var(--zhl-brand-deep); }

/* 页脚站点信息 */
.site-info {
	font-size: 0.82rem;
}