* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #0a3d62;
            --secondary-color: #e74c3c;
            --accent-color: #f39c12;
            --dark-bg: #1a1a2e;
            --light-bg: #f8f9fa;
            --text-dark: #2c3e50;
            --text-light: #ecf0f1;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--box-shadow);
        }
        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: var(--accent-color);
            text-decoration: none;
            letter-spacing: 1.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: #fff;
            transform: scale(1.05);
        }
        .my-logo i {
            font-size: 1.8rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent-color);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--accent-color);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: 0.5rem;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 1rem 2rem;
            font-size: 0.95rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #6c757d;
            margin: 0 5px;
        }
        .main-container {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 3rem;
        }
        .content-area {
            background: white;
            padding: 3rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .widget h3 {
            color: var(--primary-color);
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.8rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .widget h3 i {
            color: var(--secondary-color);
        }
        h1 {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            padding-bottom: 1.5rem;
            border-bottom: 5px solid var(--accent-color);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 2.5rem 0 1.2rem;
        }
        h4 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px dashed #ccc;
            color: #666;
            font-size: 0.95rem;
        }
        .update-time {
            background: #fff3cd;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            color: #856404;
            font-weight: 600;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-left: 5px solid var(--accent-color);
            padding: 2rem;
            margin: 2.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight-box h3 {
            margin-top: 0;
            color: var(--primary-color);
        }
        .key-stat {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .stat-card {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            text-align: center;
            box-shadow: var(--box-shadow);
            border-top: 5px solid var(--secondary-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
            margin: 1rem 0;
        }
        .stat-label {
            color: #666;
            font-size: 1.1rem;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .search-form {
            display: flex;
            margin: 2rem 0 3rem;
        }
        .search-form input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1.1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--primary-color);
        }
        .search-form button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--secondary-color);
        }
        .rating-widget {
            text-align: center;
            margin: 3rem 0;
            padding: 2.5rem;
            background: #f8f9fa;
            border-radius: var(--border-radius);
        }
        .stars {
            font-size: 2.5rem;
            color: #ddd;
            margin: 1.5rem 0;
            cursor: pointer;
        }
        .stars i {
            margin: 0 5px;
            transition: var(--transition);
        }
        .stars i:hover,
        .stars i.active {
            color: #ffc107;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1.5rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            margin-bottom: 1.5rem;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            min-height: 150px;
            transition: var(--transition);
        }
        .comment-form textarea:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        .btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 0, 0, 0.2);
        }
        .btn-secondary {
            background: #6c757d;
        }
        .btn-secondary:hover {
            background: #5a6268;
        }
        .content-area a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted transparent;
            transition: var(--transition);
        }
        .content-area a:hover {
            color: var(--secondary-color);
            border-bottom-color: var(--secondary-color);
        }
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-light);
            padding: 4rem 0 2rem;
            margin-top: 5rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        friend-link a {
            color: var(--accent-color);
            text-decoration: none;
            padding: 0.5rem 0;
            display: block;
            transition: var(--transition);
        }
        friend-link a:hover {
            color: white;
            padding-left: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 1100px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 0 1rem;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--dark-bg);
                padding: 1rem;
                transform: translateY(-150%);
                transition: var(--transition);
                opacity: 0;
                visibility: hidden;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .hamburger {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .content-area {
                padding: 2rem 1.5rem;
            }
            .widget {
                padding: 1.5rem;
            }
            .key-stat {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 480px) {
            .article-meta {
                flex-direction: column;
                gap: 1rem;
                align-items: flex-start;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: var(--border-radius);
                margin-bottom: 0.5rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mt-3 { margin-top: 3rem; }
        .py-1 { padding-top: 1rem; padding-bottom: 1rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .py-3 { padding-top: 3rem; padding-bottom: 3rem; }
        .emoji {
            font-size: 1.2em;
            margin: 0 3px;
        }
        .key-point {
            background: #e8f4fd;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 1.5rem 0;
            border-left: 4px solid #3498db;
        }
        .key-point h4 {
            color: #2980b9;
            margin-top: 0;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.1rem;
        }
        strong {
            color: var(--primary-color);
            font-weight: 700;
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid var(--accent-color);
            padding-left: 2rem;
            margin: 2.5rem 0;
            font-size: 1.2rem;
            background: #f9f9f9;
            padding: 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }