* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a365d;
            --secondary: #e53e3e;
            --accent: #f6ad55;
            --light: #f7fafc;
            --dark: #2d3748;
            --gray: #a0aec0;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #f5f7fa;
            font-size: 18px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #2c5282 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        nav a:hover, nav a.active {
            background-color: rgba(255,255,255,0.15);
            color: var(--accent);
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.8rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-area {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        article h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid var(--accent);
            padding-bottom: 0.5rem;
        }
        article h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--gray);
        }
        article h3 {
            color: var(--primary);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        article p {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        article strong {
            color: var(--secondary);
            font-weight: 700;
        }
        article em {
            background-color: #fff9e6;
            font-style: italic;
            padding: 0 3px;
        }
        .highlight {
            background: linear-gradient(120deg, #fdf6b2 0%, #fdf6b2 100%);
            padding: 1.5rem;
            border-left: 5px solid var(--accent);
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .tip-box {
            background-color: #e6fffa;
            border: 2px solid #38b2ac;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .tip-box i {
            color: #38b2ac;
            margin-right: 10px;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            transition: var(--transition);
        }
        .featured-image:hover {
            transform: scale(1.01);
            box-shadow: 0 15px 30px rgba(0,0,0,0.2);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 14px 18px;
            border: 2px solid var(--primary);
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--secondary);
        }
        .rating {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #f6ad55;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
            margin-bottom: 1rem;
        }
        .form-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .form-group input {
            padding: 12px 15px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
        }
        .submit-btn {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0,0,0,0.15);
        }
        .long-tail-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.2rem;
            margin: 3rem 0;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.12);
            border-left: 4px solid var(--secondary);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--secondary);
        }
        footer {
            background: var(--primary);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--accent);
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0aec0;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            article h1 {
                font-size: 2.4rem;
            }
            .form-group {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary);
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            nav ul.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .content-area {
                padding: 1.5rem;
            }
            article h1 {
                font-size: 2rem;
            }
            article h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 576px) {
            body {
                font-size: 16px;
            }
            .container {
                padding: 0 15px;
            }
            .logo {
                font-size: 1.5rem;
            }
            .long-tail-links {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            header, aside, .long-tail-links, footer, .breadcrumb {
                display: none;
            }
            main {
                grid-template-columns: 1fr;
                padding: 0;
            }
            .content-area {
                box-shadow: none;
                padding: 0;
            }
        }