* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-family: Georgia, 'Times New Roman', Times, serif;
            color: #1a365d;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid #e63946;
            padding-bottom: 0.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 3rem;
            color: #2d3748;
            padding-left: 0.5rem;
            border-left: 5px solid #4cc9f0;
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 2.5rem;
            color: #4a5568;
        }
        h4 {
            font-size: 1.4rem;
            margin-top: 2rem;
            color: #718096;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        header {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 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-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Trebuchet MS', sans-serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.3s ease;
        }
        .my-logo:hover {
            color: #4cc9f0;
        }
        .my-logo i {
            color: #e63946;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.3s ease;
        }
        nav a:hover {
            color: #4cc9f0;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #4cc9f0;
            transition: width 0.3s ease;
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #4a5568;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            grid-column: 1;
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        aside {
            grid-column: 2;
            padding: 2rem 0;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.06);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: #1a365d;
            border-bottom: 2px solid #e63946;
            padding-bottom: 0.5rem;
        }
        .interactive-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        label {
            font-weight: 600;
            color: #4a5568;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4cc9f0;
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
        }
        button {
            background: linear-gradient(to right, #e63946, #f72543);
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
        }
        button:hover {
            background: linear-gradient(to right, #d90429, #e63946);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(229, 57, 70, 0.3);
        }
        .rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            margin: 0.5rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            color: #cbd5e0;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #fbbf24;
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .internal-link {
            color: #2b6cb0;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted #90cdf4;
            transition: all 0.3s ease;
        }
        .internal-link:hover {
            color: #1a365d;
            border-bottom-style: solid;
            background-color: #ebf8ff;
            padding: 0 2px;
        }
        strong {
            color: #1a365d;
            font-weight: 700;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0f9ff 0%, #e6f7ff 100%);
            border-left: 5px solid #4cc9f0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        footer {
            background: #1a365d;
            color: white;
            padding: 3rem 20px 2rem;
            margin-top: 3rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h4 {
            color: #a0aec0;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #4a5568;
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #cbd5e0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        friend-link a:hover {
            color: #4cc9f0;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        .last-updated {
            background-color: #fef3c7;
            color: #92400e;
            padding: 0.8rem 1.2rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 0.3rem;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            aside {
                grid-column: 1;
                padding: 1rem 0;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #2d3748;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                border-top: 1px solid #4a5568;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            article {
                padding: 1.5rem;
            }
            .featured-image {
                margin: 1.5rem 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .sidebar-widget {
                padding: 1.2rem;
            }
        }