:root {
            --primary: #007bff;
            --primary-dark: #0069d9;
            --primary-light: #4dabf7;
            --bg-page: #fff;
            --bg-content: #fff;
            --text-main: #333;
            --text-secondary: #666;
            --text-light: #999;
            --border: #e5e5e5;
            --radius: 0;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
            background: var(--bg-page);
            color: var(--text-main);
            line-height: 1.8;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        .container {
            width: min(800px, calc(100% - 24px));
            margin: 0 auto;
        }

        .header {
            background: var(--primary);
            padding: 10px 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 2px;
        }

        .header-links {
            display: flex;
            gap: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }

        .header-links a {
            transition: color 0.2s;
        }

        .header-links a:hover {
            color: #fff;
        }

        .breadcrumb {
            padding: 12px 0;
            font-size: 13px;
            color: var(--text-light);
            border-bottom: 1px solid var(--border);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--primary);
        }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb span {
            margin-left: 4px;
        }

        .article-header {
            text-align: center;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 24px;
        }

        .article-title {
            font-size: clamp(26px, 5vw, 34px);
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .article-meta .author {
            color: var(--primary);
            font-weight: 600;
        }

        .article-meta .publish-time {
            font-family: "Arial", sans-serif;
        }

        .article-meta .source {
            color: var(--text-light);
        }

        .article-body {
            font-size: 17px;
            color: var(--text-main);
            line-height: 2;
        }

        .article-body p {
            margin-bottom: 1.6em;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 2.5em 0 1.2em;
            color: var(--text-main);
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            margin: 1.5em 0;
        }

        .article-body .image-caption {
            font-size: 14px;
            color: var(--text-secondary);
            text-align: center;
            margin-top: -1em;
            margin-bottom: 1.5em;
            font-style: italic;
        }

        .article-body strong {
            font-weight: 700;
            color: var(--primary);
        }

        .article-body blockquote {
            margin: 1.5em 0;
            padding: 16px 20px;
            background: #f8f9fa;
            border-left: 4px solid var(--primary);
            color: var(--text-secondary);
            quotes: none;
        }

        .article-body blockquote::before,
        .article-body blockquote::after {
            content: "";
        }

        .article-excerpt {
            background: #f8f9fa;
            padding: 20px 24px;
            margin-bottom: 24px;
            border-left: 4px solid var(--primary);
        }

        .article-excerpt h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .article-excerpt p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .article-footer {
            padding: 24px 0;
            border-top: 1px solid var(--border);
            margin-top: 32px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .article-footer .editor-info {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }

        .article-footer .editor-label {
            font-weight: 600;
            color: var(--text-main);
        }

        .article-footer .editor-name {
            color: var(--primary);
        }

        .article-footer .reading-count {
            text-align: center;
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-light);
        }

        .tags-container {
            padding: 20px 0;
            border-top: 1px dashed var(--border);
            margin-top: 24px;
        }

        .tags-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

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

        .tags a {
            padding: 5px 12px;
            background: #f5f5f5;
            border: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-secondary);
            transition: all 0.2s;
        }

        .tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .related-section {
            padding: 24px 0;
            border-top: 2px solid var(--primary);
            margin-top: 32px;
        }

        .related-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .related-list {
            list-style: none;
        }

        .related-list li {
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
        }

        .related-list li:last-child {
            border-bottom: 0;
        }

        .related-list a {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.5;
            transition: color 0.2s;
            flex: 1;
        }

        .related-list a:hover {
            color: var(--primary);
        }

        .related-list .meta {
            font-size: 13px;
            color: var(--text-light);
            flex-shrink: 0;
            margin-left: 16px;
            text-align: right;
        }

        .related-list .meta .category {
            color: var(--primary);
            margin-bottom: 4px;
            display: block;
        }

        .footer {
            background: #333;
            color: #999;
            padding: 30px 0;
            margin-top: 32px;
            font-size: 13px;
            text-align: center;
        }

        .footer-info {
            margin-bottom: 12px;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #999;
            transition: color 0.2s;
        }

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

        .copyright {
            font-size: 12px;
            color: #666;
        }

        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            text-align: center;
            line-height: 40px;
            font-size: 18px;
            cursor: pointer;
            display: none;
            z-index: 100;
            border-radius: 50%;
            transition: all 0.2s;
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .container {
                width: calc(100% - 16px);
            }
            
            .article-title {
                font-size: 24px;
            }
            
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
            
            .header-links {
                display: none;
            }
            
            .article-body {
                font-size: 16px;
            }
            
            .related-list li {
                flex-direction: column;
                gap: 4px;
            }
            
            .related-list .meta {
                margin-left: 0;
                text-align: left;
            }
        }