* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #4a6fa5;
            --secondary-color: #ff6b6b;
            --accent-color: #51cf66;
            --dark-color: #2d3436;
            --light-color: #f8f9fa;
            --gray-color: #adb5bd;
            --max-width: 1200px;
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--secondary-color);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .my-logo:hover {
            color: var(--dark-color);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav ul li a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 5px 0;
            position: relative;
        }
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: width 0.3s ease;
        }
        nav ul li a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 12px 0;
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--dark-color);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: var(--gray-color);
        }
        .main-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        article {
            background-color: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        h1 {
            color: var(--dark-color);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-left: 5px solid var(--accent-color);
            padding-left: 20px;
        }
        h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #e9ecef;
        }
        h3 {
            color: var(--dark-color);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: #555;
            font-size: 1.3rem;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--dark-color);
            background-color: #e7f5ff;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
            border-left: 4px solid var(--primary-color);
        }
        .highlight {
            background-color: #fff9db;
            padding: 3px 6px;
            border-radius: 3px;
            font-weight: 600;
        }
        .img-container {
            margin: 30px auto;
            text-align: center;
            max-width: 800px;
        }
        .feature-img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: var(--gray-color);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        blockquote {
            border-left: 4px solid var(--accent-color);
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            color: #555;
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 8px;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e9ecef;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .widget-title i {
            color: var(--secondary-color);
        }
        .search-form input {
            width: 100%;
            padding: 14px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 1rem;
            margin-bottom: 15px;
            transition: border 0.3s;
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .search-form button {
            width: 100%;
            padding: 14px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #3a5985;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin-bottom: 15px;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 1rem;
            min-height: 150px;
            margin-bottom: 15px;
            resize: vertical;
        }
        .comment-form button {
            padding: 14px 30px;
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .comment-form button:hover {
            background-color: #40b956;
        }
        .update-time {
            background-color: #e7f5ff;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            color: var(--primary-color);
            margin-top: 40px;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.4rem;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 1px solid #495057;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #adb5bd;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #495057;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 10px;
            transition: background-color 0.3s;
        }
        friend-link:hover {
            background-color: #5a6268;
        }
        friend-link a {
            color: white;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #495057;
            color: #adb5bd;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .main-layout {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            nav ul {
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            nav.active {
                max-height: 500px;
                margin-top: 20px;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
            }
            nav ul li a {
                display: block;
                padding: 10px 0;
            }
            article {
                padding: 25px;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 0, 0, 0.1);
        }
        .tag {
            display: inline-block;
            background-color: #e7f5ff;
            color: var(--primary-color);
            padding: 5px 12px;
            border-radius: 50px;
            font-size: 0.9rem;
            margin-right: 8px;
            margin-bottom: 10px;
        }
        .stat-box {
            display: flex;
            justify-content: space-around;
            text-align: center;
            margin: 30px 0;
            flex-wrap: wrap;
            gap: 20px;
        }
        .stat {
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            min-width: 150px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--gray-color);
        }