:root {
            --cs-orange: #f39c12;
            --cs-dark: #1a1a1a;
            --cs-gray: #2c3e50;
            --cs-light: #ecf0f1;
            --cs-red: #e74c3c;
            --cs-blue: #3498db;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--cs-dark);
            color: var(--cs-light);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--cs-orange);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--cs-red);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(to right, var(--cs-gray), var(--cs-dark));
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(45deg, var(--cs-orange), var(--cs-red));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1.5px;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: unset;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--cs-light);
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover {
            border-bottom-color: var(--cs-orange);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--cs-light);
        }
        .breadcrumb {
            background: var(--cs-gray);
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--cs-blue);
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: rgba(44, 62, 80, 0.8);
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        h1, h2, h3, h4 {
            font-family: 'Trebuchet MS', sans-serif;
            margin-bottom: 1.2rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            color: var(--cs-orange);
            border-bottom: 4px solid var(--cs-red);
            padding-bottom: 1rem;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--cs-blue);
            margin-top: 3rem;
            padding-left: 1rem;
            border-left: 5px solid var(--cs-orange);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--cs-light);
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #bdc3c7;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: #f1c40f;
            background: rgba(52, 152, 219, 0.1);
            padding: 1rem;
            border-radius: 8px;
            border-left: 4px solid var(--cs-blue);
        }
        .highlight {
            background: linear-gradient(90deg, #e74c3c30, #f39c1230);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: bold;
            color: #f1c40f;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            border: 3px solid var(--cs-orange);
            margin: 2rem auto;
            display: block;
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #95a5a6;
            margin-top: -1.5rem;
            margin-bottom: 2rem;
        }
        blockquote {
            border-left: 5px solid var(--cs-red);
            padding-left: 2rem;
            margin: 2rem 0;
            font-style: italic;
            background: rgba(231, 76, 60, 0.05);
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        aside {
            background: var(--cs-gray);
            padding: 1.5rem;
            border-radius: 12px;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget h3 {
            font-size: 1.5rem;
            color: var(--cs-orange);
            border-bottom: 2px dashed var(--cs-blue);
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .form-box {
            background: rgba(26, 26, 26, 0.9);
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2rem;
            border: 1px solid #444;
        }
        .form-box h3 {
            margin-top: 0;
            color: var(--cs-orange);
        }
        form label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #bdc3c7;
        }
        form input, form textarea, form select {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #555;
            border-radius: 6px;
            background: #2c3e50;
            color: var(--cs-light);
            font-size: 1rem;
        }
        form button {
            background: linear-gradient(to right, var(--cs-orange), var(--cs-red));
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s;
            width: 100%;
        }
        form button:hover {
            transform: translateY(-3px);
        }
        friend-link {
            display: block;
            background: var(--cs-gray);
            padding: 2rem;
            border-radius: 12px;
            margin-top: 3rem;
            border: 2px solid var(--cs-blue);
        }
        friend-link h2 {
            text-align: center;
            color: var(--cs-orange);
            border: none;
            padding: 0;
        }
        .friend-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .friend-item {
            background: rgba(26, 26, 26, 0.7);
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            transition: all 0.3s;
            border: 1px solid transparent;
        }
        .friend-item:hover {
            border-color: var(--cs-orange);
            transform: scale(1.03);
        }
        footer {
            background: var(--cs-gray);
            padding: 2rem 0;
            text-align: center;
            margin-top: 3rem;
            border-top: 4px solid var(--cs-red);
        }
        .copyright {
            color: #95a5a6;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
                width: 100%;
                display: none;
            }
            .main-nav ul.active {
                display: flex;
                margin-top: 1rem;
            }
            .main-nav li {
                padding: 0.8rem 0;
                border-bottom: 1px solid #444;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .last-updated {
            color: #f1c40f;
            font-weight: bold;
            background: rgba(52, 152, 219, 0.1);
            padding: 0.5rem;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 1.5rem;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .stat {
            background: linear-gradient(135deg, #3498db30, #9b59b630);
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
        }
        .key-term {
            color: var(--cs-orange);
            font-weight: bold;
            border-bottom: 1px dotted var(--cs-orange);
            cursor: help;
        }