* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a73e8;
            --secondary: #0d47a1;
            --accent: #ff6f00;
            --light: #f8f9fa;
            --dark: #202124;
            --gray: #5f6368;
            --border: #dadce0;
            --success: #34a853;
            --warning: #f9ab00;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        ul, ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background: var(--primary);
            color: white;
            border-radius: var(--radius);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-accent {
            background: var(--accent);
        }
        .btn-accent:hover {
            background: #e65c00;
        }
        header {
            background: white;
            box-shadow: 0 2px 10px 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;
            border-bottom: 1px solid var(--border);
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--accent);
        }
        .search-box {
            display: flex;
            max-width: 500px;
            width: 100%;
            margin: 0 20px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid var(--border);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            padding: 0 20px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-size: 1rem;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }
        nav {
            background: var(--dark);
            padding: 0;
        }
        .nav-list {
            display: flex;
            list-style: none;
            justify-content: center;
        }
        .nav-list li {
            margin: 0;
            position: relative;
        }
        .nav-list a {
            display: block;
            padding: 16px 20px;
            color: white;
            font-weight: 500;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
        }
        .nav-list a:hover {
            background: rgba(255,255,255,0.1);
            color: #fff;
        }
        .nav-list a i {
            margin-right: 8px;
        }
        .breadcrumb {
            padding: 15px 0;
            background: var(--light);
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background: white;
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            line-height: 1.8;
        }
        h1, h2, h3, h4 {
            color: var(--dark);
            margin: 1.8rem 0 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--secondary);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 10px;
            margin-top: 0;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            padding-left: 10px;
            border-left: 4px solid var(--accent);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary);
        }
        .intro {
            font-size: 1.2rem;
            color: var(--gray);
            margin-bottom: 2rem;
            padding: 20px;
            background: #f0f7ff;
            border-radius: var(--radius);
            border-left: 4px solid var(--primary);
        }
        .highlight-box {
            background: #fff8e1;
            border-left: 4px solid var(--warning);
            padding: 20px;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .image-container img {
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
            transition: var(--transition);
        }
        .image-container img:hover {
            transform: scale(1.01);
        }
        .caption {
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 2rem 0;
        }
        .stat-card {
            background: var(--light);
            padding: 20px;
            border-radius: var(--radius);
            text-align: center;
            border-top: 4px solid var(--primary);
        }
        .stat-card h4 {
            font-size: 2.5rem;
            color: var(--primary);
            margin: 10px 0;
        }
        blockquote {
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin: 2rem 0;
            font-style: italic;
            color: var(--gray);
            background: #f9f9f9;
            padding: 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        aside {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            margin-bottom: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
            font-size: 1.3rem;
        }
        .quick-links ul {
            list-style: none;
            padding-left: 0;
        }
        .quick-links li {
            margin-bottom: 12px;
        }
        .quick-links a {
            display: block;
            padding: 12px 15px;
            background: var(--light);
            border-radius: var(--radius);
            border-left: 3px solid var(--primary);
        }
        .quick-links a:hover {
            background: #e8f0fe;
            border-left-color: var(--accent);
            padding-left: 20px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: var(--warning);
            margin: 15px 0;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comments-section {
            margin-top: 40px;
        }
        .comment-form, .rating-form {
            background: var(--light);
            padding: 25px;
            border-radius: var(--radius);
            margin-bottom: 30px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
        }
        .comment-list {
            margin-top: 30px;
        }
        .comment {
            background: white;
            padding: 20px;
            border-radius: var(--radius);
            margin-bottom: 20px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            border-left: 3px solid var(--border);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: bold;
            color: var(--dark);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            display: block;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        friend-link {
            display: block;
            margin-top: 20px;
            padding: 15px;
            background: rgba(255,255,255,0.05);
            border-radius: var(--radius);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            aside {
                position: static;
            }
            .search-box {
                max-width: 300px;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                order: 3;
                margin: 15px 0 0;
                max-width: 100%;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--dark);
                z-index: 999;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            }
            .nav-list.active {
                display: flex;
            }
            .nav-list a {
                padding: 15px 20px;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }