* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 顶部标题区域 */
        .page-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid #e1e4e8;
            margin-bottom: 20px;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo i {
            font-size: 28px;
            color: #3498db;
            margin-right: 10px;
        }
        
        .logo-content {
            display: flex;
            flex-direction: column;
        }
        
        .logo h1 {
            font-size: 24px;
            color: #2c3e50;
            line-height: 1.2;
        }
        
        .site-tagline {
            font-size: 14px;
            color: #7f8c8d;
            margin-top: 5px;
        }
        
        .user-actions {
            display: flex;
            align-items: center;
        }
        
        .user-actions button {
            background: #3498db;
            color: white;
            border: none;
            padding: 10px 18px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 500;
            transition: background 0.3s;
            margin-left: 10px;
            display: flex;
            align-items: center;
        }
        
        .user-actions button i {
            margin-right: 5px;
        }
        
        .user-actions button:hover {
            background: #2980b9;
        }
        
        /* 悬浮导航栏 */
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav li {
            margin-right: 5px;
        }
        
        nav a {
            text-decoration: none;
            color: #555;
            font-weight: 500;
            padding: 15px 20px;
            display: block;
            transition: all 0.3s;
            border-bottom: 3px solid transparent;
        }
        
        nav a:hover, nav a.active {
            color: #3498db;
            border-bottom: 3px solid #3498db;
            background-color: #f8f9fa;
        }
        
        /* 面包屑导航 */
        .breadcrumb {
            background: white;
            padding: 15px 20px;
            border-radius: 8px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
            margin-bottom: 20px;
            font-size: 14px;
        }
        
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        
        .breadcrumb span {
            color: #7f8c8d;
        }
        
        /* 主要内容布局 */
        .main-content {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }
        
        .content-left {
            flex: 2.7;
        }
        
        .content-right {
            flex: 1.3;
        }
        
        /* 卡片样式 */
        .card {
            background: white;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .card-title {
            font-size: 18px;
            margin-bottom: 15px;
            color: #2c3e50;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 10px;
            border-bottom: 1px solid #e1e4e8;
        }
        
        .card-title-left {
            display: flex;
            align-items: center;
        }
        
        .card-title i {
            margin-right: 8px;
            color: #3498db;
        }
        
        .more-link {
            font-size: 14px;
            color: #3498db;
            text-decoration: none;
            font-weight: normal;
        }
        
        .more-link:hover {
            text-decoration: underline;
        }
        
        /* 文章内容样式 */
        .article-header {
            margin-bottom: 30px;
            text-align: center; /* 添加居中 */
        }
        
        .article-title {
            font-size: 28px;
            color: #2c3e50;
            line-height: 1.4;
            margin-bottom: 15px;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            color: #7f8c8d;
            font-size: 14px;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid #e1e4e8;
            justify-content: center; /* 添加居中 */
            flex-wrap: wrap; /* 确保在小屏幕上也能正确换行 */
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            margin-right: 20px;
        }
        
        .meta-item i {
            margin-right: 5px;
        }
        
        .article-category {
            background: #f1f8ff;
            color: #3498db;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 13px;
        }
        
        .article-content {
            font-size: 16px;
            line-height: 1.8;
            color: #444;
        }
        
        .article-content h2 {
            font-size: 22px;
            color: #2c3e50;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #e1e4e8;
        }
        
        .article-content h3 {
            font-size: 18px;
            color: #2c3e50;
            margin: 25px 0 12px;
        }
        
        .article-content p {
            margin-bottom: 16px;
            text-align: justify;
        }
        
        .article-content ul, .article-content ol {
            margin: 15px 0;
            padding-left: 30px;
        }
        
        .article-content li {
            margin-bottom: 8px;
        }
        
        .article-content blockquote {
            background: #f8f9fa;
            border-left: 4px solid #3498db;
            padding: 15px 20px;
            margin: 20px 0;
            font-style: italic;
            color: #555;
        }
        
        .article-image {
            width: 100%;
            border-radius: 8px;
            overflow: hidden;
            margin: 20px 0;
        }
        
        .article-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        .image-caption {
            text-align: center;
            font-size: 14px;
            color: #7f8c8d;
            margin-top: 8px;
        }
        
        .info-box {
            background: #f1f8ff;
            border: 1px solid #d1e7ff;
            border-radius: 8px;
            padding: 20px;
            margin: 25px 0;
        }
        
        .info-box-title {
            font-weight: bold;
            color: #2c3e50;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .info-box-title i {
            color: #3498db;
            margin-right: 8px;
        }
        
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #e1e4e8;
        }
        
        .tag {
            background: #f8f9fa;
            color: #555;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 13px;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .tag:hover {
            background: #3498db;
            color: white;
        }
        
        .article-actions {
            display: flex;
            justify-content: space-between;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #e1e4e8;
        }
        
        .action-btn {
            background: #f8f9fa;
            border: 1px solid #e1e4e8;
            border-radius: 4px;
            padding: 10px 15px;
            cursor: pointer;
            display: flex;
            align-items: center;
            transition: all 0.3s;
            color: #555;
            text-decoration: none;
        }
        
        .action-btn:hover {
            background: #e1f0fa;
            border-color: #3498db;
            color: #3498db;
        }
        
        .action-btn i {
            margin-right: 8px;
        }
        
        /* 考试月历模块 */
        .exam-calendar {
            background: white;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            padding: 20px;
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
            height: 280px;
        }
        
        .calendar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .calendar-title {
            font-size: 18px;
            color: #2c3e50;
            display: flex;
            align-items: center;
        }
        
        .calendar-title i {
            margin-right: 8px;
            color: #3498db;
        }
        
        .current-month {
            font-size: 14px;
            color: #7f8c8d;
        }
        
        .calendar-container {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 8px;
            margin-bottom: 10px;
            flex: 1;
        }
        
        .month-card {
            background: #e9ecef;
            border-radius: 6px;
            padding: 10px 5px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            font-size: 12px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 40px;
        }
        
        .month-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
        }
        
        .month-card.active {
            border-color: #3498db;
            background-color: #3498db;
            color: white;
        }
        
        .month-card.past {
            opacity: 0.6;
        }
        
        .month-card .month-name {
            font-weight: bold;
        }
        
        .exam-details {
            padding-top: 10px;
            border-top: 1px dashed #e1e4e8;
            max-height: 130px;
            overflow-y: auto;
            flex-shrink: 0;
        }
        
        .exam-item {
            display: flex;
            justify-content: space-between;
            padding: 6px 0;
            font-size: 13px;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .exam-item:last-child {
            border-bottom: none;
        }
        
        .exam-date {
            font-weight: bold;
            color: #e74c3c;
            min-width: 120px;
            text-align: right;
        }
        
        .exam-status {
            font-size: 11px;
            color: #3498db;
            min-width: 60px;
            text-align: right;
            text-decoration: none;
            cursor: pointer;
        }
        
        .exam-status:hover {
            text-decoration: underline;
        }
        
        .no-exams {
            text-align: center;
            color: #7f8c8d;
            font-style: italic;
            font-size: 13px;
            padding: 10px 0;
        }
        
        /* 相关文章 */
        .related-articles {
            list-style: none;
        }
        
        .related-article {
            padding: 12px 0;
            border-bottom: 1px solid #e1e4e8;
            display: flex;
            align-items: center;
        }
        
        .related-article:last-child {
            border-bottom: none;
        }
        
        .related-title {
            flex: 1;
            font-size: 14px;
        }
        
        .related-title a {
            color: #2c3e50;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .related-title a:hover {
            color: #3498db;
        }
        
        /* 热门文章 */
        .hot-articles {
            list-style: none;
        }
        
        .hot-article {
            padding: 12px 0;
            border-bottom: 1px solid #e1e4e8;
            display: flex;
            align-items: center;
        }
        
        .hot-article:last-child {
            border-bottom: none;
        }
        
        .hot-rank {
            width: 24px;
            height: 24px;
            background: #f8f9fa;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: bold;
            margin-right: 10px;
            color: #7f8c8d;
        }
        
        .hot-rank.top {
            background: #e74c3c;
            color: white;
        }
        
        .hot-title {
            flex: 1;
            font-size: 14px;
        }
        
        .hot-title a {
            color: #2c3e50;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .hot-title a:hover {
            color: #3498db;
        }
        
        /* 底部 */
        footer {
            background: #2c3e50;
            color: white;
            padding: 30px 0;
            text-align: center;
            margin-top: 40px;
        }
        
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .page-header {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .user-actions {
                margin-top: 15px;
                width: 100%;
                justify-content: flex-end;
            }
            
            nav ul {
                flex-wrap: wrap;
            }
            
            nav li {
                margin: 0;
                flex: 1;
                text-align: center;
            }
            
            nav a {
                padding: 12px 10px;
                font-size: 14px;
            }
            
            .main-content {
                flex-direction: column;
            }
            
            .article-title {
                font-size: 22px;
            }
            
            .article-meta {
                flex-wrap: wrap;
            }
            
            .meta-item {
                margin-bottom: 8px;
            }
            
            .article-actions {
                flex-direction: column;
                gap: 10px;
            }
            
            .action-btn {
                justify-content: center;
            }
            
            .calendar-container {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            
            .month-card {
                padding: 8px 4px;
                min-height: 35px;
            }
        }
        /* 列表样式 */
        .article-list {
            list-style: none;
        }
        
        .article-item {
            padding: 20px 0;
            border-bottom: 1px solid #e1e4e8;
            display: flex;
            transition: all 0.3s;
        }
        
        .article-item:hover {
            background-color: #f8f9fa;
            border-radius: 6px;
            padding-left: 10px;
            padding-right: 10px;
        }
        
        .article-item:last-child {
            border-bottom: none;
        }
        
        .article-thumb {
            width: 180px;
            height: 220px;
            border-radius: 6px;
            overflow: hidden;
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }
        
        .article-item:hover .article-thumb img {
            transform: scale(1.05);
        }
        
        .article-content {
            flex: 1;
        }
        
        .article-title {
            font-size: 18px;
            margin-bottom: 10px;
            color: #2c3e50;
        }
        
        .article-title a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .article-title a:hover {
            color: #3498db;
        }
        
        .article-excerpt {
            color: #7f8c8d;
            margin-bottom: 10px;
            line-height: 1.6;
            font-size: 14px;
        }
        
        .article-meta {
            display: flex;
            font-size: 13px;
            color: #95a5a6;
        }
        
        .article-date {
            margin-right: 15px;
            display: flex;
            align-items: center;
        }
        
        .article-date i {
            margin-right: 5px;
        }
        
        .article-category {
            background: #f1f8ff;
            color: #3498db;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 12px;
        }
        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .tag {
            background: #f8f9fa;
            color: #555;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 13px;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .tag:hover {
            background: #3498db;
            color: white;
        }
        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 30px;
        }
        
        .pagination a {
            display: inline-block;
            padding: 10px 15px;
            margin: 0 5px;
            background: #f8f9fa;
            color: #3498db;
            text-decoration: none;
            border-radius: 4px;
            transition: all 0.3s;
        }
        
        .pagination a:hover, .pagination a.active {
            background: #3498db;
            color: white;
        }