* {
			margin: 0;
			padding: 0;
			box-sizing: border-box;
		}

		html {
			overflow-x: hidden;
		}

		body {
			font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC',
				sans-serif;
			background: #f5f5f5;
			overflow-x: hidden;
			-webkit-font-smoothing: antialiased;
		}

		/* ========== 滚动出场动画 ========== */
		.scroll-animate {
			opacity: 0;
			transform: translateY(40px);
			transition: opacity 0.8s ease, transform 0.8s ease;
		}

		.scroll-animate.visible {
			opacity: 1;
			transform: translateY(0);
		}

		.scroll-animate-delay-1 {
			transition-delay: 0.1s;
		}

		.scroll-animate-delay-2 {
			transition-delay: 0.2s;
		}

		.scroll-animate-delay-3 {
			transition-delay: 0.3s;
		}

		.scroll-slide-left {
			opacity: 0;
			transform: translateX(-60px);
			transition: opacity 0.8s ease, transform 0.8s ease;
		}

		.scroll-slide-left.visible {
			opacity: 1;
			transform: translateX(0);
		}

		.scroll-slide-right {
			transform: translateX(60px);
			transition: opacity 0.8s ease, transform 0.8s ease;
		}

		.scroll-slide-right.visible {
			opacity: 1;
			transform: translateX(0);
		}

		/* ========== 顶部快捷栏 ========== */
		.top-bar {
			background: linear-gradient(
				to bottom,
				rgba(0, 0, 0, 0.3),
				rgba(0, 0, 0, 0)
			);
			height: 58px;
			display: flex;
			align-items: center;
			justify-content: flex-end;
			padding: 0 60px;
			position: absolute;
			top: 0;
			left: 0;
			right: 0;
			z-index: 1002;
			transition: all 0.4s ease;
		}

		.top-bar a {
			color: #fff;
			text-decoration: none;
			font-size: 1rem;
			display: flex;
			align-items: center;
			margin-right: 15px;
			gap: 4px;
		}

		.top-bar a::before {
			content: '';
			width: 3px;
			height: 14px;
			background: #fff;
			opacity: 0.6;
			margin-right: 15px;
		}

		.top-bar.scrolled a::before {
			background: #000;
		}

		.top-bar a:hover {
			color: #fff;
		}

		.top-bar .search-icon {
			width: 20px;
			height: 20px;
			cursor: pointer;
			margin-left: 10px;
			color: #fff;
		}

		.top-bar.scrolled {
			background: #fff;
			position: fixed;
			top: 0;
		}

		.top-bar.scrolled a {
			color: #666;
		}

		.top-bar.scrolled a:hover {
			color: #1a5f9e;
		}

		.top-bar.scrolled .search-icon {
			color: #666;
		}

		/* ========== 主导航 ========== */
		.main-header {
			position: absolute;
			left: 0;
			right: 0;
			padding: 0 60px;
			display: flex;
			align-items: center;
			justify-content: space-between;
			height: 80px;
			z-index: 1001;
			background: transparent;
			transition: all 0.4s ease;
		}

		.main-header.scrolled {
			position: fixed;
			background: #fff;
			box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
			height: 80px;
		}

		.header-inner {
			display: flex;
			align-items: center;
			justify-content: space-between;
			gap: 16px;
			width: 100%;
			box-sizing: border-box;
		}

		/* Logo容器：重点，设置max-width，允许缩小 */
		.logo-section {
			position: relative;
			flex: 0 1 160px;
			/* flex: 0 1 基准宽度，不主动放大，但空间不够会缩小！ */
			max-width: 30vw;
			min-width: 20vw;
			/* logo最小不能小于100px，防止缩没了 */

			display: flex;
			align-items: center;
		}

		/* 窗口变窄：缩小文字，防止挤压 */
		@media screen and (max-width: 1200px) {
			.logo-section {
				max-width: 50vw;
				min-width: 20vw;
			}

			.main-nav li a {
				font-size: 0.9rem;
				padding: 4px 6px;
			}
		}

		@media screen and (max-width: 992px) {
			.logo-section {
				max-width: 50vw;
				min-width: 30vw;
			}

			.main-nav li a {
				font-size: 0.82rem;
				padding: 3px 5px;
			}
		}

		.logo-white,
		.logo-black {
			position: absolute;
			left: 0;
			top: 50%;
			transform: translateY(-50%);
			width: 100%;
			height: auto;
			max-height: 58px;
			object-fit: contain;
			object-position: left center;
			transition: opacity 0.4s ease;
		}

		.logo-black {
			opacity: 0;
		}

		.main-header.scrolled .logo-white {
			opacity: 0;
		}

		.main-header.scrolled .logo-black {
			opacity: 1;
		}

		.main-header.scrolled .logo-white,
		.main-header.scrolled .logo-black {
			height: 73px;
		}

		.logo-text {
			color: #fff;
			transition: all 0.4s ease;
		}

		.main-header.scrolled .logo-text {
			color: #333;
		}

		.logo-text .cn-name {
			font-family: 'Noto Serif SC', serif;
			font-size: 26px;
			font-weight: 700;
			letter-spacing: 3px;
			line-height: 1.2;
			text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
			transition: all 0.4s ease;
		}

		.main-header.scrolled .logo-text .cn-name {
			text-shadow: none;
			font-size: 22px;
		}

		.logo-text .en-name {
			font-size: 10px;
			font-weight: 400;
			letter-spacing: 1px;
			opacity: 0.95;
			margin-top: 1px;
			transition: all 0.4s ease;
		}

		.main-header.scrolled .logo-text .en-name {
			opacity: 0.7;
		}

		.logo-text .sub-title {
			font-size: 10px;
			opacity: 0.85;
			margin-top: 2px;
			letter-spacing: 0.5px;
			transition: all 0.4s ease;
		}

		.main-header.scrolled .logo-text .sub-title {
			opacity: 0.6;
		}

		.main-nav {
			display: flex;
			align-items: center;
			gap: 0;
		}
		.nav-box {
			display: flex;
			align-items: center;
			gap: 0;
		}

		.nav-item {
			position: relative;
		}

		.nav-item > a {
			color: #fff;
			text-decoration: none;
			font-size: 1.2rem;
			font-weight: 500;
			padding: 30px 20px;
			display: block;
			transition: all 0.3s;
			position: relative;
			text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
		}

		@media screen and (min-width: 1380px) and (max-width: 1650px) {
			.nav-item > a {
				font-size: 0.8rem;
			}
		}

		.main-header.scrolled .nav-item > a {
			color: #333;
			text-shadow: none;
			padding: 25px 20px;
		}

		.nav-item > a::after {
			content: '';
			position: absolute;
			bottom: 18px;
			left: 20px;
			right: 20px;
			height: 2px;
			background: #fff;
			transform: scaleX(0);
			transition: transform 0.3s;
		}

		.main-header.scrolled .nav-item > a::after {
			background: #1a5f9e;
			bottom: 15px;
		}

		.nav-item:hover > a::after {
			transform: scaleX(1);
		}

		.nav-item:hover .dropdown {
			opacity: 1;
			visibility: visible;
			transform: translateX(-50%) translateY(0);
		}

		.dropdown {
			position: absolute;
			top: 100%;
			left: 50%;
			transform: translateX(-50%) translateY(-10px);
			background: #fff;
			min-width: 160px;
			padding: 8px 0;
			opacity: 0;
			visibility: hidden;
			transition: all 0.3s;
			box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
			border-radius: 0 0 4px 4px;
		}

		.dropdown::before {
			content: '';
			position: absolute;
			top: -6px;
			left: 50%;
			transform: translateX(-50%);
			width: 0;
			height: 0;
			border-left: 6px solid transparent;
			border-right: 6px solid transparent;
			border-bottom: 6px solid #056aee;
		}

		.dropdown a {
			display: block;
			color: black;
			text-decoration: none;
			padding: 10px 24px;
			font-size: 1.2rem;
			transition: all 0.2s;
			white-space: nowrap;
			text-align: center;
		}

		.dropdown a:hover {
			color: #056aee;
		}

		.nav-search-wrapper {
			display: flex;
			align-items: center;
			margin-left: 10px;
		}

		.nav-search-box {
			display: flex;
			align-items: center;
			background: rgba(255, 255, 255, 0.15);
			border: 1px solid rgba(255, 255, 255, 0.3);
			border-radius: 22px;
			padding: 0 6px 0 14px;
			overflow: hidden;
			transition: all 0.35s ease;
			color: #f0f0f0;
			width: 42px;
			height: 38px;
		}

		.main-header.scrolled .nav-search-box {
			background: rgba(0, 0, 0, 0.05);
			border-color: rgba(0, 0, 0, 0.12);
		}

		.nav-search-box:focus-within,
		.nav-search-box.active {
			width: 210px;
			background: rgba(255, 255, 255, 0.5);
			border-color: rgba(26, 95, 158, 0.4);
			box-shadow: 0 2px 12px rgba(26, 95, 158, 0.15);
		}

		.nav-search-box input {
			border: none;
			outline: none;
			background: transparent;
			font-size: 13px;
			width: 100%;
			padding: 0;
			opacity: 0;
			transition: opacity 0.3s;
		}

		.nav-search-box input::placeholder {
			color: #ffffff;
			opacity: 0.8;
		}

		.nav-search-box input::-moz-placeholder {
			color: #ffffff;
			opacity: 0.8;
		}

		.nav-search-box input:-ms-input-placeholder {
			color: #ffffff;
		}

		.main-header.scrolled .nav-search-box input {
			color: #333;
		}

		.main-header.scrolled .nav-search-box input::placeholder {
			color: #666;
			opacity: 0.75;
		}

		.main-header.scrolled .nav-search-box input::-moz-placeholder {
			color: #666;
			opacity: 0.75;
		}

		.main-header.scrolled .nav-search-box input:-ms-input-placeholder {
			color: #666;
		}

		.nav-search-box:focus-within input,
		.nav-search-box.active input {
			opacity: 1;
			padding-right: 8px;
		}

		.nav-search-btn {
			border: none;
			background: transparent;
			cursor: pointer;
			display: flex;
			align-items: center;
			justify-content: center;
			color: #fff;
			flex-shrink: 0;
			transition: color 0.3s, transform 0.3s;
		}

		.main-header.scrolled .nav-search-btn {
			color: #666;
		}

		.nav-search-box:focus-within .nav-search-btn,
		.nav-search-box.active .nav-search-btn {
			color: #1a5f9e;
		}

		.nav-search-btn:hover {
			transform: scale(1.1);
		}

		/* ========== 页面标题栏 ========== */
		.page-banner {
			background: linear-gradient(135deg, #1a3290 0%, #1a5f9e 100%);
			padding: 68px 60px 50px;
			color: #fff;
			position: relative;
			overflow: hidden;
		}

		.page-banner::before {
			content: '';
			position: absolute;
			top: -50%;
			right: -10%;
			width: 500px;
			height: 500px;
			background: rgba(255, 255, 255, 0.05);
			border-radius: 50%;
		}

		.page-banner h1 {
			font-size: 32px;
			font-weight: 700;
			letter-spacing: 4px;
			position: relative;
		}

		.page-banner .en {
			font-size: 14px;
			opacity: 0.7;
			margin-top: 8px;
			letter-spacing: 2px;
		}

		/* ========== 主体布局 ========== */
		.main-container {
			margin: 0 auto;
			padding: 40px 50px;
			display: grid;
			grid-template-columns: 260px 1fr;
			gap: 30px;
		}

		/* ========== 侧边栏 ========== */
		.sidebar {
			background: #fff;
			box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
			height: fit-content;
		}

		.sidebar-header {
			background: #1a3290;
			color: #fff;
			padding: 16px 20px;
			font-size: 18px;
			font-weight: 700;
			letter-spacing: 2px;
			display: flex;
			align-items: center;
			justify-content: space-between;
		}

		.sidebar-header .grid-icon {
			display: none;
			width: 18px;
			height: 18px;
			grid-template-columns: 1fr 1fr;
			grid-template-rows: 1fr 1fr;
			gap: 3px;
			cursor: pointer;
			transition: opacity 0.3s;
		}

		.sidebar-header .grid-icon:hover {
			opacity: 0.7;
		}

		.sidebar-header .grid-icon span {
			background: #fff;
			border-radius: 1px;
			opacity: 0.9;
		}

		.sidebar-menu {
			max-height: 2000px;
			/* 默认展开 */
			overflow: hidden;
			transition: max-height 0.4s ease;
		}

		.sidebar-menu.collapsed {
			max-height: 0;
		}

		.sidebar-menu > li {
			border-bottom: 1px solid #f8f9fa;
		}

		.sidebar-menu > li:last-child {
			border-bottom: none;
		}

		/* 一级导航项（有子菜单） */
		.menu-item-header {
			display: flex;
			align-items: center;
			justify-content: space-between;
			padding: 15px 22px;
			color: #333;
			font-size: 15px;
			transition: all 0.3s;
			position: relative;
			cursor: pointer;
			user-select: none;
		}

		.menu-item-header:hover {
			color: #1a5f9e;
			background: #f8f9fa;
			padding-left: 26px;
		}

		.menu-item-header.active-item {
			color: #1a3290;
			background: #f0f4ff;
			font-weight: 600;
			border-left: 4px solid #1a3290;
			padding-left: 18px;
		}

		.menu-item-header .arrow-icon {
			width: 14px;
			height: 14px;
			flex-shrink: 0;
			margin-left: 8px;
			transition: transform 0.3s, color 0.3s;
		}

		.menu-item-header:hover .arrow-icon {
			color: #1a5f9e;
		}

		.menu-item-header.expanded .arrow-icon {
			transform: rotate(90deg);
		}

		/* 一级导航链接（无子菜单） */
		.menu-link {
			display: flex;
			align-items: center;
			justify-content: space-between;
			padding: 15px 22px;
			color: #333;
			text-decoration: none;
			font-size: 15px;
			transition: all 0.3s;
			position: relative;
		}

		.menu-link:hover {
			color: #1a5f9e;
			background: #f8f9fa;
			padding-left: 26px;
		}

		.menu-link.active {
			color: #1a3290;
			background: #f0f4ff;
			font-weight: 600;
			border-left: 4px solid #1a3290;
			padding-left: 18px;
		}

		.menu-link .arrow-right {
			width: 14px;
			height: 14px;
			flex-shrink: 0;
			margin-left: 8px;
			transition: color 0.3s;
		}

		.menu-link:hover .arrow-right {
			color: #1a5f9e;
		}

		/* 子菜单 */
		.sub-menu {
			list-style: none;
			background: #fafbfc;
			max-height: 0;
			overflow: hidden;
			transition: max-height 0.35s ease;
		}

		.sub-menu.open {
			max-height: 500px;
		}

		.sub-menu > li {
			border-bottom: 1px solid #f0f0f0;
		}

		.sub-menu > li:last-child {
			border-bottom: none;
		}

		/* 二级导航项（有子菜单） */
		.sub-menu-header {
			display: flex;
			align-items: center;
			justify-content: space-between;
			padding: 12px 22px 12px 38px;
			color: #666;
			font-size: 14px;
			transition: all 0.3s;
			cursor: pointer;
			user-select: none;
			position: relative;
		}

		.sub-menu-header::before {
			content: '';
			position: absolute;
			left: 24px;
			top: 50%;
			transform: translateY(-50%);
			width: 5px;
			height: 5px;
			background: #ccc;
			border-radius: 50%;
			transition: background 0.3s;
		}

		.sub-menu-header:hover {
			color: #1a5f9e;
			background: #f0f4ff;
		}

		.sub-menu-header:hover::before {
			background: #1a5f9e;
		}

		.sub-menu-header.active-item {
			color: #1a3290;
			font-weight: 600;
			background: #e8eefc;
		}

		.sub-menu-header.active-item::before {
			background: #1a3290;
		}

		.sub-menu-header .arrow-icon {
			width: 12px;
			height: 12px;
			flex-shrink: 0;
			margin-left: 8px;
			transition: transform 0.3s;
		}

		.sub-menu-header.expanded .arrow-icon {
			transform: rotate(90deg);
		}

		/* 二级导航链接（无子菜单） */
		.sub-menu-link {
			display: block;
			padding: 12px 22px 12px 38px;
			color: #666;
			text-decoration: none;
			font-size: 14px;
			transition: all 0.3s;
			position: relative;
		}

		.sub-menu-link::before {
			content: '';
			position: absolute;
			left: 24px;
			top: 50%;
			transform: translateY(-50%);
			width: 5px;
			height: 5px;
			background: #ccc;
			border-radius: 50%;
			transition: background 0.3s;
		}

		.sub-menu-link:hover {
			color: #1a5f9e;
			background: #f0f4ff;
		}

		.sub-menu-link:hover::before {
			background: #1a5f9e;
		}

		.sub-menu-link.active {
			color: #1a3290;
			font-weight: 600;
			background: #e8eefc;
		}

		.sub-menu-link.active::before {
			background: #1a3290;
		}

		/* 三级菜单 */
		.sub-sub-menu {
			list-style: none;
			background: #f5f7fa;
			max-height: 0;
			overflow: hidden;
			transition: max-height 0.35s ease;
		}

		.sub-sub-menu.open {
			max-height: 300px;
		}

		.sub-sub-menu li {
			border-bottom: 1px solid #f0f0f0;
		}

		.sub-sub-menu li:last-child {
			border-bottom: none;
		}

		.sub-sub-menu a {
			display: block;
			padding: 10px 22px 10px 54px;
			color: #888;
			text-decoration: none;
			font-size: 13px;
			transition: all 0.3s;
		}

		.sub-sub-menu a:hover {
			color: #1a5f9e;
			background: #e8eefc;
		}

		.sub-sub-menu a.active {
			color: #1a3290;
			font-weight: 600;
		}

		/* ========== 内容区域 ========== */
		.content-area {
			background: #fff;
			padding: 30px 40px;
			box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
			min-height: 600px;
		}

		.content-header {
			display: flex;
			align-items: center;
			justify-content: space-between;
			border-bottom: 2px solid #1a3290;
			padding-bottom: 12px;
			margin-bottom: 25px;
		}

		.content-header h2 {
			font-size: 22px;
			font-weight: 700;
		}

		.breadcrumb {
			font-size: 13px;
			display: flex;
			align-items: center;
			gap: 6px;
		}

		.breadcrumb a {
			color: black;
			text-decoration: none;
			transition: color 0.3s;
		}

		.breadcrumb a:hover {
			color: #1a5f9e;
		}

		/* ========== 文章详情 ========== */
		.article-title {
			font-size: 22px;
			font-weight: 700;
			color: #333;
			text-align: center;
			line-height: 1.5;
			margin-bottom: 18px;
		}

		.article-meta {
			text-align: center;
			font-size: 13px;
			color: #999;
			margin-bottom: 25px;
			padding-bottom: 20px;
			border-bottom: 1px solid #eee;
		}

		.article-meta span {
			margin: 0 10px;
		}

		.article-meta .label {
			color: #666;
		}

		.article-body {
			font-size: 15px;
			line-height: 1.9;
			color: #333;
		}

		.article-body p {
			text-indent: 2em;
			margin-bottom: 16px;
		}

		.article-body p.no-indent {
			text-indent: 0;
		}

		.article-image {
			text-align: center;
			margin: 25px 0;
		}

		.article-image img {
			max-width: 100%;
			height: auto;
			box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
		}

		.image-caption {
			font-size: 13px;
			color: #666;
			margin-top: 8px;
		}

		.article-review {
			text-align: right;
			font-size: 13px;
			color: #666;
			margin-top: 30px;
			padding-top: 20px;
			border-top: 1px solid #eee;
		}

		.article-pre {
			margin-top: 25px;
			padding-top: 20px;
			border-top: 1px solid #eee;
			font-size: 14px;
			color: #666;
		}

		.article-next {
			margin-top: 10px;
			border-top: 1px solid #eee;
			font-size: 14px;
			color: #666;
		}

		.article-pre a {
			color: #1a5f9e;
			text-decoration: none;
			transition: color 0.3s;
		}

		.article-next a {
			color: #1a5f9e;
			text-decoration: none;
			transition: color 0.3s;
		}

		.article-next a:hover {
			color: #0f2b5b;
			text-decoration: underline;
		}

		/* ========== 底部 ========== */
		.footer {
			background: #0f2b5b;
			color: #fff;
			padding: 50px 60px 20px;
			margin-top: 40px;
		}

		.footer-content {
			max-width: 1500px;
			margin: 0 auto;
			display: grid;
			grid-template-columns: 2fr 1fr 1fr;
			gap: 40px;
			margin-bottom: 30px;
		}

		.footer-section h4 {
			font-size: 16px;
			margin-bottom: 20px;
			padding-bottom: 10px;
			border-bottom: 1px solid rgba(255, 255, 255, 0.2);
		}

		.footer-section p,
		.footer-section a {
			color: rgba(255, 255, 255, 0.8);
			font-size: 14px;
			line-height: 2;
			text-decoration: none;
			display: block;
			transition: color 0.3s;
		}

		.footer-section a:hover {
			color: #fff;
		}

		.contact-section p {
			line-height: 1.8;
			margin-bottom: 8px;
		}

		.footer-bottom {
			max-width: 1200px;
			margin: 0 auto;
			text-align: center;
			padding-top: 20px;
			border-top: 1px solid rgba(255, 255, 255, 0.1);
			color: rgba(255, 255, 255, 0.6);
			font-size: 13px;
		}

		/* ========== 移动端 ========== */
		.mobile-menu-btn,
		.mobile-nav-panel,
		.mobile-nav-overlay {
			display: none;
		}

		@media screen and (max-width: 768px) {
			.article-next a {
				width: 90vw;
			}

			.sidebar-header .grid-icon {
				display: grid;
			}
			.sidebar-menu {
				max-height: 0;
			}
			.sidebar-menu.collapsed {
				max-height: 2000px;
			}
			.top-bar {
				padding: 0 15px;
				height: 44px;
				justify-content: space-between;
			}
			.top-bar a {
				font-size: 11px;
				margin-right: 5px;
			}
			.top-bar a::before {
				width: 1px;
				height: 10px;
				margin-right: 8px;
			}
			.top-bar a:nth-child(n + 5) {
				display: none;
			}
			.top-bar .search-icon {
				width: 18px;
				height: 18px;
			}
			.main-header {
				padding: 0 15px;
				height: 60px;
				top: 14px;
			}
			.main-header.scrolled {
				top: 0;
				height: 60px;
			}

			.main-nav {
				display: none;
			}
			.mobile-menu-btn {
				display: flex;
				flex-direction: column;
				gap: 5px;
				cursor: pointer;
				padding: 10px;
				z-index: 1003;
			}
			.mobile-menu-btn span {
				width: 24px;
				height: 2px;
				background: #fff;
				transition: all 0.3s;
			}
			.main-header.scrolled .mobile-menu-btn span {
				background: #333;
			}
			.mobile-nav-panel.active {
				right: 0;
				display: block;
			}
			.mobile-nav-panel {
				position: fixed;
				top: 0;
				right: -100%;
				width: 80%;
				max-width: 320px;
				height: 100vh;
				background: #fff;
				z-index: 2000;
				transition: right 0.4s ease;
				overflow-y: auto;
				padding: 60px 20px 20px;
				box-shadow: -5px 0 30px rgba(0, 0, 0, 0.2);
			}
			.mobile-nav-panel.active {
				right: 0;
			}
			.mobile-nav-overlay {
				position: fixed;
				top: 0;
				left: 0;
				right: 0;
				bottom: 0;
				background: rgba(0, 0, 0, 0.5);
				z-index: 1999;
				opacity: 0;
				visibility: hidden;
				transition: all 0.3s;
			}
			.mobile-nav-overlay.active {
				opacity: 1;
				visibility: visible;
				display: block;
			}
			.mobile-nav-item {
				border-bottom: 1px solid #eee;
			}
			.mobile-nav-item > a,
			.mobile-nav-row > .mobile-nav-link {
				flex: 1 1 auto;
				display: block;
				padding: 15px 0;
				color: #000000;
				text-decoration: none;
				font-size: 16px;
				font-weight: 500;
			}
			/* ===== 一级标题与展开箭头分开：点标题跳转，点箭头才展开子菜单 ===== */
			.mobile-nav-row {
				display: flex;
				align-items: center;
			}
			.mobile-nav-toggle {
				flex: 0 0 auto;
				width: 44px;              /* 手指点得中的热区 */
				height: 44px;
				margin-right: -12px;
				display: flex;
				align-items: center;
				justify-content: center;
				border: none;
				background: transparent;
				color: #999;
				font-size: 12px;
				line-height: 1;
				cursor: pointer;
				-webkit-tap-highlight-color: transparent;
				transition: transform 0.3s ease, color 0.3s ease;
			}
			.mobile-nav-toggle.active {
				transform: rotate(180deg);
				color: #1a5f9e;
			}
			.mobile-dropdown {
				padding-left: 15px;
				padding-bottom: 10px;
				display: none;
			}
			.mobile-dropdown.active {
				display: block;
			}
			.mobile-dropdown a {
				display: block;
				padding: 10px 0;
				color: #666;
				text-decoration: none;
				font-size: 14px;
			}
			.mobile-nav-search {
				display: flex;
				align-items: center;
				background: #f5f5f5;
				border-radius: 22px;
				padding: 0 6px 0 16px;
				margin-bottom: 16px;
				border: 1px solid #e0e0e0;
			}
			.mobile-nav-search input {
				flex: 1;
				border: none;
				outline: none;
				background: transparent;
				font-size: 14px;
				color: #333;
				padding: 10px 0;
			}
			.mobile-nav-search input::placeholder {
				color: #999;
			}
			.mobile-nav-search button {
				border: none;
				background: transparent;
				cursor: pointer;
				padding: 8px;
				color: #666;
				display: flex;
				align-items: center;
			}
			.mobile-nav-search button:hover {
				color: #1a5f9e;
			}
			.page-banner {
				padding: 70px 20px 30px;
			}
			.page-banner h1 {
				font-size: 24px;
			}
			.main-container {
				grid-template-columns: 1fr;
				padding: 20px 0px;
			}
			.sidebar {
				margin-bottom: 10px;
			}
			.sidebar-header {
				padding: 14px 20px;
				font-size: 18px;
			}
			.content-area {
				padding: 20px 18px;
			}
			.content-header {
				flex-direction: column;
				align-items: flex-start;
				gap: 8px;
			}
			.article-title {
				font-size: 18px;
			}
			.article-body {
				font-size: 14px;
			}
			.article-body p {
				text-indent: 2em;
			}
			/* =========下面新增图片适配代码========= */
			.article-image img {
				max-width: calc(100% - 36px);
				box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
			}
			/* 可选：缩小手机端段落缩进 */
			/* .article-body p {
        text-indent: 1.5em;
    } */
			.footer {
				padding: 30px 20px 15px;
			}
			.footer-content {
				grid-template-columns: 1fr;
				gap: 25px;
			}
			.footer-section h4 {
				font-size: 15px;
				margin-bottom: 12px;
			}
			.footer-section p,
			.footer-section a {
				font-size: 13px;
				line-height: 1.8;
			}
			.footer-bottom {
				font-size: 11px;
				padding-top: 15px;
			}
		}

		@media screen and (min-width: 769px) and (max-width: 1024px) {
			.top-bar {
				padding: 0 30px;
			}

			.main-header {
				padding: 0 30px;
			}

			.nav-item > a {
				padding: 30px 12px;
				font-size: 14px;
			}

			.main-container {
				grid-template-columns: 220px 1fr;
				padding: 30px 20px;
			}

			.footer-content {
				grid-template-columns: 1fr 1fr;
			}
		}
		/* 内容主容器：不再写死宽度 */
		.content {
			width: auto;
			max-width: 100%;
		}

		/* 如果是用 margin-left 避让左侧导航，确认导航真实宽度后对齐，
   或者干脆改成 flex，让两栏自适应 */
		.main {
			display: flex;
			gap: 30px;
		}
		.sidebar {
			flex: 0 0 260px;
		} /* 导航实际宽度 */
		.content {
			flex: 1;
			min-width: 0;
		} /* min-width:0 很关键，防止flex子项撑开 */

		@media (max-width: 768px) {
			.articleContent {
				width: 94vw !important;
			}
		}

		/* ========== 移动端面板内的搜索框 ========== */
		.mobile-nav-panel .nav-search-box {
			width: 100% !important; /* 占满面板宽度，不再折叠 */
			height: 42px;
			background: #f5f5f5; /* 浅灰底，白面板上可见 */
			border: 1px solid #e0e0e0;
			border-radius: 22px;
			padding: 0 6px 0 16px;
			margin-bottom: 16px;
			opacity: 1;
		}

		/* 展开/聚焦状态也要覆盖，防止被 PC 端 .active 样式顶回去 */
		.mobile-nav-panel .nav-search-box.active,
		.mobile-nav-panel .nav-search-box:focus-within {
			width: 100% !important;
			background: #f5f5f5;
			border-color: #1a5f9e;
			box-shadow: none;
		}

		/* 输入的文字颜色：白色 → 深蓝 */
		.mobile-nav-panel .nav-search-box input {
			color: #1a5f9e; /* 想换别的色改这里，如 #333 */
			opacity: 1; /* PC 端收起时 opacity 是 0，这里强制显示 */
		}

		/* 占位符颜色 */
		.mobile-nav-panel .nav-search-box input::placeholder {
			color: #999;
			opacity: 1;
		}
		.mobile-nav-panel .nav-search-box input::-moz-placeholder {
			color: #999;
			opacity: 1;
		}
		.mobile-nav-panel .nav-search-box input:-ms-input-placeholder {
			color: #999;
		}

		/* 搜索图标按钮颜色 */
		.mobile-nav-panel .nav-search-box .nav-search-btn {
			color: #666;
		}
		.mobile-nav-panel .nav-search-box.active .nav-search-btn,
		.mobile-nav-panel .nav-search-box:focus-within .nav-search-btn {
			color: #1a5f9e;
		}

.mobile-nav-item > a,
.mobile-nav-row > .mobile-nav-link {   /* 新增第二个选择器 */
    flex: 1 1 auto;
    display: block;
    padding: 15px 0;
    color: #000000;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
}
/* ===== 一级标题与展开箭头分开：点标题跳转，点箭头才展开子菜单 ===== */
.mobile-nav-row { display: flex; align-items: center; }
.mobile-nav-toggle {            /* 44×44 手指热区、无边框透明按钮 */
    flex: 0 0 auto; width: 44px; height: 44px; margin-right: -12px;
    display: flex; align-items: center; justify-content: center;
    border: none; background: transparent; color: #999;
    font-size: 12px; line-height: 1;
    cursor: pointer; -webkit-tap-highlight-color: transparent;
    transition: transform .3s ease, color .3s ease;
}
.mobile-nav-toggle.active { transform: rotate(180deg); color: #1a5f9e; }