:root {
            --primary-color: #4F46E5;
            --secondary-color: #6366F1;
            --accent-color: #818CF8;
            --background-color: #F9FAFB;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --border-color: #E5E7EB;
        }

        body {
            background: var(--background-color);
            padding: 0;
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        .main-nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1rem 0;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-logo a {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .nav-logo a:hover {
            color: var(--secondary-color);
            transform: translateY(-1px);
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            align-items: center;
        }

        .nav-links a {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 0.5rem;
            transition: all 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--primary-color);
            background: rgba(79, 70, 229, 0.1);
        }

        .nav-links a.active {
            color: var(--primary-color);
            background: rgba(79, 70, 229, 0.1);
        }

        .news-detail-container {
            max-width: 1200px;
            margin: 6rem auto 0;
            padding: 1rem;
        }

        .news-detail-content {
            background: white;
            border-radius: 1rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            overflow: hidden;
            margin-bottom: 1.5rem;
        }

        .news-header {
            padding: 2rem 1.5rem;
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            background: none;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .news-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        }

        .news-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.25rem;
            line-height: 1.4;
            text-align: center;
            position: relative;
            display: inline-block;
        }

        .news-title::after {
            display: none;
        }

        .news-meta {
            display: flex;
            flex-direction: row;
            gap: 1.5rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            justify-content: center;
            align-items: center;
            background: rgba(255, 255, 255, 0.6);
            padding: 0.75rem 1.5rem;
            border-radius: 2rem;
            backdrop-filter: blur(8px);
            margin: 0 auto;
            max-width: fit-content;
            box-shadow: none;
            white-space: nowrap;
        }

        .meta-item {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .meta-item i {
            color: var(--primary-color);
            font-size: 1rem;
            opacity: 0.9;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 1rem;
            height: 1rem;
            margin: 0;
            padding: 0;
            flex-shrink: 0;
        }

        .meta-item span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
            margin: 0;
            padding: 0;
        }

        .meta-item:hover {
            transform: translateY(-1px);
        }

        .news-content {
            padding: 2rem 1.5rem;
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            background: #fff;
        }

        .news-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }

        .news-content h1, 
        .news-content h2, 
        .news-content h3, 
        .news-content h4, 
        .news-content h5, 
        .news-content h6 {
            color: var(--text-primary);
            margin: 2rem 0 1rem;
            font-weight: 600;
            line-height: 1.4;
        }

        .news-content h1 { font-size: 1.8rem; }
        .news-content h2 { font-size: 1.6rem; }
        .news-content h3 { font-size: 1.4rem; }
        .news-content h4 { font-size: 1.2rem; }
        .news-content h5 { font-size: 1.1rem; }
        .news-content h6 { font-size: 1rem; }

        .news-content img {
            max-width: 100%;
            height: auto;
            border-radius: 0.5rem;
            margin: 1.5rem 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .news-content a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.3s ease;
            border-bottom: 1px solid transparent;
        }

        .news-content a:hover {
            color: var(--secondary-color);
            border-bottom-color: var(--secondary-color);
        }

        .news-content ul, 
        .news-content ol {
            margin: 1rem 0;
            padding-left: 1.5rem;
        }

        .news-content li {
            margin-bottom: 0.75rem;
            line-height: 1.7;
        }

        .news-content blockquote {
            margin: 1.5rem 0;
            padding: 1rem 1.5rem;
            border-left: 4px solid var(--primary-color);
            background: rgba(79, 70, 229, 0.05);
            border-radius: 0 0.5rem 0.5rem 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .news-content code {
            background: rgba(79, 70, 229, 0.1);
            padding: 0.2rem 0.4rem;
            border-radius: 0.25rem;
            font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
            font-size: 0.9em;
        }

        .news-content pre {
            background: #f8f9fa;
            padding: 1rem;
            border-radius: 0.5rem;
            overflow-x: auto;
            margin: 1.5rem 0;
        }

        .news-content pre code {
            background: none;
            padding: 0;
        }

        .sidebar-card {
            background: white;
            border-radius: 1rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            overflow: hidden;
            margin-bottom: 1.5rem;
        }

        .sidebar-title {
            padding: 1.25rem;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            background: none;
        }

        .sidebar-title i {
            color: var(--primary-color);
        }

        .hot-list {
            padding: 1rem;
        }

        .hot-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.75rem;
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

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

        .hot-item:hover {
            background: rgba(79, 70, 229, 0.03);
            transform: translateX(5px);
        }

        .hot-item-number {
            width: 1.25rem;
            height: 1.25rem;
            background: var(--background-color);
            color: var(--text-secondary);
            border-radius: 0.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .hot-item-number.top {
            background: var(--primary-color);
            color: white;
        }

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

        .hot-item-title {
            font-size: 0.9rem;
            line-height: 1.5;
            color: var(--text-primary);
        }

        .hot-item-title a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        .hot-item-image {
            width: 4rem;
            height: 3rem;
            border-radius: 0.375rem;
            object-fit: cover;
            flex-shrink: 0;
        }

        .footer {
            background: var(--text-primary);
            color: white;
            padding: 2rem;
            text-align: center;
            margin-top: 2rem;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h4 {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: white;
        }

        .footer-section p {
            color: rgba(255, 255, 255, 0.8);
            margin: 0.5rem 0;
            font-size: 0.95rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 1.5rem;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin: 0;
        }

        @media (min-width: 768px) {
            .news-detail-container {
                display: grid;
                grid-template-columns: 2fr 1fr;
                gap: 1.5rem;
                padding: 2rem;
            }

            .news-header {
                padding: 3rem 2rem;
            }

            .news-title {
                font-size: 2rem;
                margin-bottom: 1.5rem;
            }

            .news-meta {
                gap: 2rem;
                font-size: 0.95rem;
                padding: 1rem 2rem;
            }

            .news-content {
                padding: 2rem;
                font-size: 1.1rem;
            }

            .news-content h1 { font-size: 2rem; }
            .news-content h2 { font-size: 1.8rem; }
            .news-content h3 { font-size: 1.6rem; }
            .news-content h4 { font-size: 1.4rem; }
            .news-content h5 { font-size: 1.2rem; }
            .news-content h6 { font-size: 1.1rem; }

            .sidebar {
                position: sticky;
                top: 2rem;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }

            .news-detail-container {
                margin-top: 0;
                padding: 0.75rem;
            }

            .news-header {
                padding: 1.25rem 1rem;
                border-radius: 0;
            }

            .news-title {
                font-size: 1.4rem;
                margin-bottom: 1rem;
                line-height: 1.4;
            }

            .news-meta {
                flex-direction: row;
                gap: 0.5rem;
                padding: 0.75rem 0.5rem;
                width: 100%;
                max-width: 100%;
                display: flex;
                align-items: center;
                justify-content: center;
                flex-wrap: wrap;
                background: rgba(255, 255, 255, 0.8);
            }

            .meta-item {
                display: flex;
                align-items: center;
                justify-content: center;
                text-align: center;
                gap: 0.25rem;
                white-space: nowrap;
                font-size: 0.85rem;
            }

            .meta-item i {
                width: 0.9rem;
                height: 0.9rem;
                display: inline-flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
                font-size: 0.9rem;
            }

            .news-content {
                padding: 1.25rem 1rem;
                font-size: 1rem;
                line-height: 1.7;
            }

            .news-content p {
                margin-bottom: 1rem;
            }

            .sidebar-card {
                margin-top: 1rem;
                border-radius: 0;
            }

            .sidebar-title {
                padding: 1rem;
                font-size: 1.1rem;
            }

            .hot-list {
                padding: 0.75rem;
            }

            .hot-item {
                padding: 0.625rem;
            }

            .hot-item-image {
                width: 3.5rem;
                height: 2.625rem;
            }

            .mobile-nav-buttons .nav-button {
                text-decoration: none !important;
                border-radius: 0 !important;
                color: #fff !important;
            }

            .mobile-nav-buttons,
            .mobile-nav-buttons .nav-button,
            .mobile-nav-buttons .nav-button.home,
            .mobile-nav-buttons .nav-button.test {
                border-radius: 0 !important;
                border-top-left-radius: 0 !important;
                border-top-right-radius: 0 !important;
                border-bottom-left-radius: 0 !important;
                border-bottom-right-radius: 0 !important;
            }

            .mobile-nav-buttons .nav-button {
                font-size: 14px !important;
                font-weight: 700 !important;
                height: 45px !important;
                min-height: 45px !important;
                max-height: 45px !important;
                padding: 0 !important;
                display: flex !important;
                align-items: center !important;
                justify-content: center !important;
                line-height: 1 !important;
            }
            .mobile-nav-buttons .nav-button i {
                font-size: 14px !important;
                margin-right: 0.3em !important;
                filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10)) !important;
                display: inline-block !important;
                vertical-align: middle !important;
                line-height: 1 !important;
            }
        }

        @media (max-width: 480px) {
            .main-nav {
                display: none;
            }

            .news-detail-container {
                margin-top: 0;
                padding: 0.5rem;
            }

            .news-header {
                padding: 1rem 0.75rem;
            }

            .news-title {
                font-size: 1.25rem;
                margin-bottom: 0.875rem;
            }

            .news-meta {
                flex-direction: row;
                gap: 0.4rem;
                padding: 0.625rem 0.4rem;
                width: 100%;
                max-width: 100%;
                display: flex;
                align-items: center;
                justify-content: center;
                flex-wrap: wrap;
                background: rgba(255, 255, 255, 0.8);
            }

            .meta-item {
                display: flex;
                align-items: center;
                justify-content: center;
                text-align: center;
                gap: 0.25rem;
                white-space: nowrap;
                font-size: 0.8rem;
            }

            .meta-item i {
                width: 0.85rem;
                height: 0.85rem;
                display: inline-flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
                font-size: 0.85rem;
            }

            .news-content {
                padding: 1rem 0.75rem;
                font-size: 0.95rem;
                line-height: 1.6;
            }

            .news-content p {
                margin-bottom: 0.875rem;
            }

            .sidebar-card {
                margin-top: 0.875rem;
            }

            .sidebar-title {
                padding: 0.875rem;
                font-size: 1rem;
            }

            .hot-list {
                padding: 0.625rem;
            }

            .hot-item {
                padding: 0.5rem;
            }

            .hot-item-image {
                width: 3rem;
                height: 2.25rem;
            }
        }

        .mobile-nav-buttons {
            position: fixed !important;
            bottom: 0 !important;
            left: 0 !important;
            right: 0 !important;
            display: flex !important;
            gap: 0 !important;
            padding: 0 !important;
            margin: 0 !important;
            background: linear-gradient(90deg, #4F46E5 0%, #10B981 100%) !important;
            box-shadow: 0 -4px 24px rgba(79,70,229,0.10) !important;
            z-index: 1000 !important;
            width: 100vw !important;
            max-width: 100vw !important;
            height: 45px !important;
            border-top-left-radius: 16px;
            border-top-right-radius: 16px;
            overflow: hidden;
        }
        .mobile-nav-buttons .nav-button {
            flex: 1 !important;
            border: none !important;
            border-radius: 0 !important;
            min-width: 0 !important;
            margin: 0 !important;
            padding: 0 !important;
            height: 45px !important;
            font-size: 1rem !important;
            font-weight: 700 !important;
            color: #fff !important;
            display: flex !important;
            align-items: center !important;
            justify-content: center !important;
            gap: 0.5em !important;
            box-shadow: none !important;
            background: transparent !important;
            letter-spacing: 0.5px;
            transition: background 0.2s, filter 0.2s;
            outline: none !important;
            user-select: none;
            position: relative;
        }
        .mobile-nav-buttons .nav-button:not(:last-child)::after {
            content: "";
            position: absolute;
            right: 0;
            top: 18%;
            height: 64%;
            width: 1.5px;
            background: rgba(255,255,255,0.18);
            border-radius: 2px;
        }
        .mobile-nav-buttons .nav-button i {
            font-size: 1.15em !important;
            margin-right: 0.3em;
            filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
        }
        .mobile-nav-buttons .nav-button:active {
            filter: brightness(0.92) saturate(1.1);
        }
        /* 左蓝右绿 */
        .mobile-nav-buttons .nav-button.home {
            background: #4F46E5 !important;
            color: #fff !important;
        }
        .mobile-nav-buttons .nav-button.test {
            background: #10B981 !important;
            color: #fff !important;
        }

        @media (max-width: 768px) {
            .mobile-nav-buttons .nav-button,
            .mobile-nav-buttons .nav-button.home,
            .mobile-nav-buttons .nav-button.test {
                font-size: 14px !important;
                font-weight: 700 !important;
                height: 45px !important;
                min-height: 45px !important;
                max-height: 45px !important;
                padding: 0 !important;
                display: flex !important;
                align-items: center !important;
                justify-content: center !important;
                line-height: 1 !important;
            }
            .mobile-nav-buttons .nav-button i {
                font-size: 14px !important;
                margin-right: 0.3em !important;
                filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10)) !important;
                display: inline-block !important;
                vertical-align: middle !important;
                line-height: 1 !important;
            }
        }

        @media (min-width: 769px) {
            .mobile-nav-buttons {
                display: none !important;
                visibility: hidden !important;
                height: 0 !important;
                min-height: 0 !important;
                max-height: 0 !important;
                overflow: hidden !important;
            }
        }