body {
            background: #f8fafc;
        }

        /* Breadcrumb */
        .breadcrumb {
            background: var(--white);
            border-bottom: 1px solid rgba(232, 232, 232, 0.5);
        }

        .breadcrumb-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px 24px;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            color: var(--dark-gray);
        }

        .breadcrumb-nav a {
            color: var(--primary-blue);
            text-decoration: none;
            padding: 6px 12px;
            border-radius: 8px;
            transition: all 0.25s ease;
            display: inline-block;
        }

        .breadcrumb-nav a:hover {
            color: var(--white);
            background: var(--primary-blue);
            transform: translateY(-1px);
        }

        .breadcrumb-separator {
            color: #d9d9d9;
            margin: 0 4px;
            font-weight: 300;
        }

        .breadcrumb-nav span:last-child {
            color: var(--text-dark);
            font-weight: 500;
            padding: 6px 12px;
        }

        /* Article Container */
        .article-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 24px;
            display: flex;
            gap: 24px;
            align-items: flex-start;
        }

        /* Sidebar */
        .article-sidebar {
            width: 280px;
            flex-shrink: 0;
            position: sticky;
            top: 88px;
        }

        .sidebar-widget {
            background: var(--white);
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            margin-bottom: 20px;
        }

        .sidebar-widget:last-child {
            margin-bottom: 0;
        }

        .widget-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--light-blue);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .widget-title::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--primary-blue);
            border-radius: 2px;
        }

        /* Category Menu */
        .category-menu {
            list-style: none;
        }

        .category-item {
            margin-bottom: 8px;
        }

        .category-item:last-child {
            margin-bottom: 0;
        }

        .category-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            color: var(--text-dark);
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.25s ease;
            font-size: 14px;
        }

        .category-link:hover {
            background: var(--light-blue);
            color: var(--primary-blue);
            padding-left: 20px;
        }

        .category-link.active {
            background: var(--primary-blue);
            color: var(--white);
        }
        .category-link.cur {
            background: var(--primary-blue);
            color: var(--white);
        }

        .category-count {
            font-size: 12px;
            color: var(--dark-gray);
            background: #f5f5f5;
            padding: 2px 8px;
            border-radius: 12px;
        }

        .category-link.active .category-count {
            background: rgba(255, 255, 255, 0.2);
            color: var(--white);
        }
        .category-link.cur .category-count {
            background: rgba(255, 255, 255, 0.2);
            color: var(--white);
        }

        /* Hot Articles */
        .hot-article-list {
            list-style: none;
        }

        .hot-article-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid #f0f0f0;
            transition: all 0.25s ease;
        }

        .hot-article-item:last-child {
            border-bottom: none;
        }

        .hot-article-item:hover {
            padding-left: 4px;
        }

        .hot-article-rank {
            width: 24px;
            height: 24px;
            background: var(--light-blue);
            color: var(--primary-blue);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .hot-article-rank.top {
            background: var(--orange);
            color: var(--white);
        }

        .hot-article-content {
            flex: 1;
        }

        .hot-article-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 6px;
        }

        .hot-article-title a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .hot-article-title a:hover {
            color: var(--primary-blue);
        }

        .hot-article-meta {
            font-size: 12px;
            color: var(--dark-gray);
        }

        /* Article Main */
        .article-main {
            flex: 1;
            min-width: 0;
        }

        /* Article Header */
        .article-header {
            background: var(--white);
            border-radius: 12px;
            padding: 40px;
            margin-bottom: 24px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }

        .article-meta-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-badge {
            padding: 4px 12px;
            background: var(--light-blue);
            color: var(--primary-blue);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
        }

        .article-badge.hot {
            background: #fff2e8;
            color: var(--orange);
        }

        .article-badge.new {
            background: #f6ffed;
            color: #52c41a;
        }

        .article-date {
            font-size: 14px;
            color: var(--dark-gray);
        }

        .article-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-left: auto;
        }

        .article-tag {
            padding: 4px 12px;
            background: #f5f5f5;
            color: var(--dark-gray);
            border-radius: 16px;
            font-size: 12px;
            transition: all 0.25s ease;
        }
        .article-tag a{
            color: var(--dark-gray);
            text-decoration: none;
        }

        .article-tag:hover {
            background: var(--light-blue);
            color: var(--primary-blue);
        }
        
        .article-tag a:hover {
            color: var(--primary-blue);
        }

        .article-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 20px;
        }

        .article-meta-bottom {
            display: flex;
            align-items: center;
            gap: 24px;
            padding-top: 20px;
            border-top: 1px solid #f0f0f0;
            font-size: 14px;
            color: var(--dark-gray);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* Article Content */
        .article-content {
            background: var(--white);
            border-radius: 12px;
            padding: 48px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            margin-bottom: 24px;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 32px 0 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--light-blue);
        }

        .article-content h2:first-child {
            margin-top: 0;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 28px 0 12px;
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 24px 0 10px;
        }

        .article-content p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            margin-bottom: 16px;
            text-indent: 2em;
        }

        .article-content p:first-child {
            text-indent: 0;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0;
            padding-left: 2em;
        }

        .article-content li {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .article-content strong {
            font-weight: 600;
            color: var(--text-dark);
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary-blue);
            padding-left: 20px;
            margin: 24px 0;
            color: var(--dark-gray);
            font-style: italic;
        }

        .article-content code {
            background: #f5f5f5;
            padding: 2px 6px;
            border-radius: 4px;
            font-family: 'Consolas', 'Monaco', monospace;
            font-size: 14px;
        }

        .article-content pre {
            background: #f5f5f5;
            padding: 16px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 16px 0;
        }

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 24px 0;
        }

        /* Related Articles */
        .related-section {
            background: var(--white);
            border-radius: 12px;
            padding: 32px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            margin-bottom: 24px;
        }

        .related-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 24px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--light-blue);
        }

        .related-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .related-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            border-radius: 8px;
            transition: all 0.25s ease;
        }

        .related-item:hover {
            background: #fafbfc;
        }

        .related-item-num {
            width: 32px;
            height: 32px;
            background: var(--light-blue);
            color: var(--primary-blue);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 14px;
            flex-shrink: 0;
        }

        .related-item-content {
            flex: 1;
        }

        .related-item-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .related-item-title a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .related-item-title a:hover {
            color: var(--primary-blue);
        }

        .related-item-meta {
            font-size: 13px;
            color: var(--dark-gray);
        }

        /* Navigation */
        .article-nav {
            display: flex;
            gap: 16px;
            margin-bottom: 40px;
        }

        .nav-item {
            flex: 1;
            background: var(--white);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            transition: all 0.25s ease;
        }

        .nav-item:hover {
            box-shadow: 0 4px 16px rgba(24, 144, 255, 0.12);
            transform: translateY(-2px);
        }

        .nav-item-label {
            font-size: 13px;
            color: var(--dark-gray);
            margin-bottom: 8px;
        }

        .nav-item-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            line-height: 1.5;
        }

        .nav-item-title a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .nav-item-title a:hover {
            color: var(--primary-blue);
        }

        .nav-item.disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .nav-item.disabled:hover {
            transform: none;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
            padding: 64px 20px;
            text-align: center;
        }

        .cta-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 32px;
            color: var(--white);
            margin-bottom: 16px;
            font-weight: 600;
        }

        .cta-subtitle {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
        }

        .btn-large {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* Footer */
        .footer {
            background: rgb(30, 41, 59);
            color: var(--white);
            padding: 64px 20px 24px;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 32px;
            justify-content: center;
            padding: 32px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-nav a {
            color: var(--white);
            text-decoration: none;
            opacity: 0.9;
            transition: opacity 0.3s;
            font-size: 15px;
        }

        .footer-nav a:hover {
            opacity: 1;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }

        .footer-copyright {
            flex: 1;
            min-width: 300px;
        }

        .footer-copyright p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 8px;
        }

        .footer-slogan {
            flex: 1;
            text-align: center;
            min-width: 200px;
        }

        .footer-slogan p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
        }

        .footer-qrcodes {
            display: flex;
            gap: 20px;
            flex: 1;
            justify-content: flex-end;
            min-width: 200px;
        }

        .qrcode-item {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Tags Cloud */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-item {
            padding: 6px 14px;
            background: #f5f5f5;
            color: var(--text-dark);
            text-decoration: none;
            border-radius: 16px;
            font-size: 13px;
            transition: all 0.25s ease;
            display: inline-block;
        }

        .tag-item:hover {
            background: var(--primary-blue);
            color: var(--white);
            transform: translateY(-2px);
        }

        @media (max-width: 1024px) {
            .article-container {
                flex-direction: column;
            }

            .article-sidebar {
                width: 100%;
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .article-header,
            .article-content {
                padding: 24px;
            }

            .article-title {
                font-size: 24px;
            }

            .article-nav {
                flex-direction: column;
            }

            .article-meta-top {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-tags {
                margin-left: 0;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .article-container {
                padding: 24px 16px;
            }
        }