/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        a {
            text-decoration: none;
            color: #333;
            transition: all 0.3s;
        }
        a:hover {
            color: #2c7be5;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        input:focus {
            outline: none;
        }

        /* 导航栏样式 */
        .header {
            background: linear-gradient(135deg, #f0f7ff 0%, #e6f0ff 100%);
            padding: 10px 0;
            box-shadow: 0 2px 10px rgba(52, 152, 219, 0.1);
            position: relative;
        }
        .nav {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
                -ms-flex-align: center;
                    align-items: center;
            width: 100%;
            position: relative;
            padding: 0 12px;
            height: 44px;
        }
        .logo {
            font-size: 20px;
            font-weight: bold;
            color: #2c3e50;
            white-space: nowrap;
            margin: 0 auto;
            letter-spacing: 0.5px;
        }
        .logo span {
            color: #2c7be5;
        }
        
        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            color: #2c7be5;
            font-size: 22px;
            cursor: pointer;
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1001;
            padding: 6px;
            width: 22px;
            height: 30px;
            box-sizing: border-box;
        }
        .menu-toggle:hover {
            opacity: 0.8;
            background-color: rgba(44, 123, 229, 0.1);
            border-radius: 4px;
        }
        /* 汉堡菜单图标 */
        .menu-icon {
            width: 100%;
            height: 100%;
        }
        .menu-icon:before, .menu-icon:after, .menu-icon span {
            content: '';
            position: absolute;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: currentColor;
            border-radius: 3px;
            transition: all 0.3s;
        }
        .menu-icon:before {
            top: 6px;
        }
        .menu-icon:after {
            bottom: 6px;
        }
        .menu-icon span {
            top: 50%;
            transform: translateY(-50%);
        }
        /* 菜单打开状态图标 */
        .menu-open .menu-icon:before {
            top: 50%;
            transform: translateY(-50%) rotate(45deg);
        }
        .menu-open .menu-icon:after {
            bottom: 50%;
            transform: translateY(50%) rotate(-45deg);
        }
        .menu-open .menu-icon span {
            opacity: 0;
        }
        
        /* 搜索框样式 */
        .search-wrapper {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
                -ms-flex-align: center;
                    align-items: center;
            transition: all 0.3s;
        }
        .search-form {
            display: -webkit-box;
            display: -ms-flexbox;
            display: flex;
            -webkit-box-align: center;
                -ms-flex-align: center;
                    align-items: center;
            width: 100%;
        }
        .search-input {
            padding: 9px 18px;
            border-radius: 22px;
            border: 1px solid #d1e3f8;
            font-size: 14px;
            box-shadow: 0 1px 3px rgba(44, 123, 229, 0.08) inset;
            background-color: rgba(255, 255, 255, 0.8);
        }
        .search-btn {
            background-color: #2c7be5;
            color: white;
            padding: 9px 18px;
            border-radius: 22px;
            margin-left: 5px;
            transition: all 0.3s;
            white-space: nowrap;
            font-weight: 500;
            box-shadow: 0 2px 5px rgba(44, 123, 229, 0.2);
        }
        .search-btn:hover {
            background-color: #2468c5;
            transform: translateY(-1px);
            box-shadow: 0 3px 8px rgba(44, 123, 229, 0.3);
        }
        
/* 搜索图标样式修改 */
.search-icon {
    color: #2c7be5;
    font-size: 19px;
    cursor: pointer;
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
    padding: 6px;
    width: 32px;
    height: 32px;
    box-sizing: border-box;
}

/* 移除原Unicode字符，改为CSS绘制的搜索图标 */
.search-icon:before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.search-icon:after {
    content: '';
    position: absolute;
    width: 8px;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
    top: 70%;
    left: 70%;
    transform: translate(-50%, -50%) rotate(45deg);
}
        
        /* 导航链接通用样式 */
        #mainNav {
            transition: all 0.3s;
        }
        #mainNav a {
            color: #2c3e50;
            transition: all 0.3s;
        }
        #mainNav a:hover {
            color: #2c7be5;
        }

        /* 遮罩层 */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0,0,0,0.5);
            z-index: 999;
            display: none;
        }
        .overlay.show {
            display: block;
        }

        /* 横幅区域 */
        .banner {
            background-color: #3498db;
            padding: 40px 0;
            text-align: center;
            color: #fff;
        }
        .banner h2 {
            font-size: 32px;
            margin-bottom: 10px;
        }
        .banner p {
            font-size: 18px;
            opacity: 0.9;
        }

        /* 主要内容区 */
        .main-content {
            display: flex;
            margin-bottom: 50px;
            padding-top: 30px;
        }
        .content-left {
            flex: 3;
            margin-right: 30px;
        }
        .content-right {
            flex: 1;
            width: 100%;
            max-width: 300px;
        }
        .sidebar-sticky {
            max-height: calc(100vh - 110px);
            overflow-y: auto;
            width: inherit;
            max-width: inherit;
        }

        /* 资料板块通用样式 */
        .section {
            background-color: #fff;
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 30px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .section-title {
            font-size: 20px;
            color: #2c3e50;
            border-left: 4px solid #3498db;
            padding-left: 15px;
            margin-bottom: 20px;
        }

        /* 文章列表通用样式 */
        .article-list {
            padding: 0;
        }
        .article-item {
            display: flex;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid #f0f0f0;
            transition: background-color 0.3s;
            white-space: nowrap;
        }
        .article-item:last-child {
            border-bottom: none;
        }
        .article-item:hover {
            background-color: #f9f9f9;
        }
        .article-number {
            font-weight: bold;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: white;
            margin-right: 10px;
            flex-shrink: 0;
            font-size: 14px;
        }
        .article-title {
            flex: 1;
            margin-right: 10px;
            transition: color 0.3s;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-title:hover {
            color: #3498db;
        }
        .article-date {
            color: #999;
            font-size: 12px;
            white-space: nowrap;
        }
 
 /* 2. 文章内容容器样式 */
.article-content {
    padding: 20px;
    line-height: 1.8;
}

/* 3. 文章标题样式 */
.article-content h1 {
    font-size: 18px;
    color: #2c3e50;
    margin: 0 0 15px;
}

/* 4. 文章元信息样式 */
.article-meta {
    font-size: 13px;
    color: #999;
    margin: 0 0 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}
.article-meta .item {
    margin-right: 20px;
}

/* 5. 段落样式 */
.article-content p {
    font-size: 16px;
    margin: 0 0 20px;
    color: #333;
}
.article-content ul {
    display: block;
    list-style-type: disc;
    margin-block-start: 1em;
    margin-block-end: 1em;
    padding-inline-start: 40px;
    unicode-bidi: isolate;
}
.article-content h2 {
    display: block;
    font-size: 1.17em;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    unicode-bidi: isolate;
}

/* 6. 标题层级样式 */
.article-content h3 {
    font-size: 17px;
    color: #2c3e50;
    margin: 5px 0 5px;
    padding-bottom: 8px;
    border-bottom: 2px solid #2c7be5;
}

.article-content h4 {
    font-size: 17px;
    color: #2c3e50;
    margin: 15px 0 12px;
    padding-left: 10px;
    border-left: 3px solid #2c7be5;
}

.article-content :is(dir, menu, ol, ul) ul {
    list-style-type: circle;
}
.article-content :is(dir, dl, menu, ol, ul) ul {
    margin-block-start: 0px;
    margin-block-end: 0px;
}

/* 7. 列表样式 */
.article-content ul,
.article-content ol {
    margin: 0 0 10px 5px;
}

.article-content ul li {
    margin: 0 0 10px 15px;
    font-size: 15px;
}

.article-content ul ul li {
    margin-left: 30px;
    font-size: 14px;
}

.article-content ol li {
    margin: 0 0 10px 15px;
    font-size: 15px;
}

/* 8. 加粗文本样式 */
.article-content b {
    color: #2c7be5;
    font-weight: 600;
}


            
        /* 热门知识两列布局 */
        .two-column-list {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -10px;
        }
        .two-column-list .article-item {
            width: 50%;
            padding: 10px;
            border-bottom: none;
        }
        
        /* 序列号颜色 - 最多支持12个不同颜色 */
        .num-1 { background-color: #e74c3c; }
        .num-2 { background-color: #e67e22; }
        .num-3 { background-color: #f1c40f; }
        .num-4 { background-color: #2ecc71; }
        .num-5 { background-color: #1abc9c; }
        .num-6 { background-color: #3498db; }
        .num-7 { background-color: #9b59b6; }
        .num-8 { background-color: #34495e; }
        .num-9 { background-color: #16a085; }
        .num-10 { background-color: #27ae60; }
        .num-11 { background-color: #8e44ad; }
        .num-12 { background-color: #2980b9; }

         /* 右侧边栏 */
        .sidebar-box {
            background-color: #fff;
            border-radius: 8px;
            padding: 15px;
            margin-bottom: 20px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .sidebar-title {
            font-size: 18px;
            color: #2c3e50;
            margin-bottom: 5px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        /* 推荐阅读样式调整 */
        .sidebar-box .article-item {
            font-size: 13px;
            padding: 8px 0;
        }
        .sidebar-box .article-title {
            font-size: 13px;
        }

        /* 页脚 */
        .footer {
            background: #fff;
            padding: 30px 0;
            text-align: center;
        }
        .footer-copyright {
            font-size: 13px;
            opacity: 0.8;
        }

/* 快速跳转按钮 */
.scroll-btn {
    position: fixed;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: #2c7be5;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 10px rgba(44, 123, 229, 0.3);
    cursor: pointer;
    transition: all 0.3s;
    z-index: 900;
    opacity: 0;
    visibility: hidden;
}
.scroll-btn.show {
    opacity: 1;
    visibility: visible;
}
.scroll-btn:hover {
    background-color: #2468c5;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(44, 123, 229, 0.4);
}
.scroll-top {
    bottom: 80px; /* 顶部按钮在底部按钮上方 */
}
.scroll-bottom {
    bottom: 20px;
}

/* 用CSS绘制箭头替代Unicode字符 */
.scroll-top:before {
    content: '';
    width: 12px;
    height: 12px;
    border-top: 2px solid white;
    border-left: 2px solid white;
    transform: rotate(45deg);
    display: block;
}

.scroll-bottom:before {
    content: '';
    width: 12px;
    height: 12px;
    border-bottom: 2px solid white;
    border-right: 2px solid white;
    transform: rotate(45deg);
    display: block;
}

        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav {
                padding: 0 15px;
            }
            .header {
            padding: 2px 12px;
            }
            .search-input {
            width: 100%;
            }
            .search-wrapper {
                display: none;
                position: absolute;
                right: 15px;
                top: 100%;
                background-color: #f0f7ff;
                padding: 10px;
                border-radius: 4px;
                box-shadow: 0 2px 8px rgba(0,0,0,0.2);
                z-index: 10;
                width: 280px;
                margin: 0;
            }
            .search-wrapper.active {
                display: flex;
            }
            
            .search-icon {
                display: block;
            }
            
            #mainNav {
                position: fixed;
                top: 0;
                left: -100%;
                width: 80%;
                max-width: 300px;
                height: 100vh;
                background-color: white;
                box-shadow: 2px 0 10px rgba(0,0,0,0.1);
                z-index: 1000;
                padding-top: 60px;
                display: block;
            }
            #mainNav.open {
                left: 0;
            }
            #mainNav li {
                padding: 12px 20px;
                border-bottom: 1px solid #f0f0f0;
            }
            #mainNav a {
                display: block;
                font-size: 16px;
            }
            
            /* 显示移动端菜单按钮 */
            .menu-toggle {
                display: block;
            }
            
            .main-content {
                flex-direction: column;
                padding-top: 10px;
                margin-bottom: 10px;
            }
            .content-left {
                margin-right: 0;
            }
            .content-right {
                position: static;
                max-width: 100%;
                margin-top: 15px;
            }
            .sidebar-sticky {
                position: static !important;
                max-height: none;
                overflow-y: visible;
            }
            
            .section, .friend-links {
                margin-bottom: 20px;
            }
            
            .banner h2 {
                font-size: 26px;
            }
            .banner p {
                font-size: 16px;
            }
            
            /* 热门知识在移动端改为1列 */
            .two-column-list .article-item {
                width: 100%;
            }
            
            /* 友情链接移动端样式 */
            .friend-links-title {
                font-size: 18px;
            }
            .links-container {
                gap: 10px 15px;
            }
            .link-item {
                font-size: 12px; /* 移动端友情链接字体更小 */
            }

            /* 移动端调整按钮大小和位置 */
            .scroll-btn {
                width: 38px;
                height: 38px;
                right: 15px;
            }
            .scroll-top {
                bottom: 70px;
            }
            .scroll-bottom {
                bottom: 15px;
            }
			.container {padding: 0px;}
        }

        @media (max-width: 576px) {
            .logo {
                font-size: 18px;
            }
 
            .banner {
                padding: 25px 0;
            }
            .banner h2 {
                font-size: 22px;
            }
            .section-title {
                font-size: 18px;
            }
            
            .search-wrapper {
                width: calc(100% - 30px);
            }
            
            .main-content {
                margin-bottom: 10px;
            }
            .content-right {
                margin-top: 10px;
            }
            .sidebar-box {
                margin-bottom: 15px;
            }
            #mainNav {
                width: 60%;
            }
        }
        
        @media (min-width: 769px) {
            .search-wrapper {
                display: flex;
                margin-left: auto;
            }
            .search-icon {
                display: none;
            }
            .menu-toggle {
                display: none;
            }

          #mainNav {
                display: flex;
                align-items: center;
                margin: 0 auto;
            }
            #mainNav li {
                margin: 0 12px;
            }
            #mainNav a {
                font-size: 15px;
                white-space: nowrap;
                padding: 5px 0;
                position: relative;
            }
            
            .header {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                z-index: 1000;
            }
            body {
                padding-top: 50px;
            }
			/* 3. 文章标题样式 */
.article-content h1 {text-align: center;}
.article-meta{text-align: center;}
        }

.article-url {
    background-color: #eee;
    font-size: 13px;
    padding: 8px 0px;
    border-radius: 2px;
    color: #aaa;
    text-align: center;
    overflow: hidden;
    clear: both;
}
.article-url:hover{background-color:#45B6F7;color:#fff;}

	
.breadcrumbs {
    padding-bottom: 10px;
    font-size: 13px;
    color: #666;
    border-bottom: 1px solid #EBEBEB;
    margin-bottom: 15px;
}