:root {
        --primary: #1a365d;
        --secondary: #c53030;
        --accent: #f6ad55;
        --dark: #2d3748;
        --light: #f7fafc;
        --gray: #a0aec0;
        --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        --radius: 8px;
        --transition: all 0.3s ease;
    }
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        background-color: var(--light);
        color: var(--dark);
        line-height: 1.6;
        overflow-x: hidden;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--secondary);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    header {
        background-color: var(--primary);
        color: white;
        padding: 1rem 0;
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: var(--shadow);
    }
    .header-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .my-logo {
        font-size: 1.8rem;
        font-weight: 800;
        color: white;
        text-transform: uppercase;
        letter-spacing: 1px;
        background: linear-gradient(90deg, var(--accent), white);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .my-logo:hover {
        opacity: 0.9;
    }
    .breadcrumb {
        background-color: #edf2f7;
        padding: 12px 0;
        font-size: 0.9rem;
    }
    .breadcrumb ol {
        display: flex;
        flex-wrap: wrap;
        list-style: none;
    }
    .breadcrumb li {
        margin-right: 10px;
        display: flex;
        align-items: center;
    }
    .breadcrumb li:not(:last-child)::after {
        content: '/';
        margin-left: 10px;
        color: var(--gray);
    }
    nav {
        display: flex;
        align-items: center;
    }
    .nav-links {
        display: flex;
        list-style: none;
    }
    .nav-links li {
        margin-left: 1.5rem;
    }
    .nav-links a {
        color: white;
        font-weight: 500;
        padding: 0.5rem 0;
        position: relative;
    }
    .nav-links a:hover {
        color: var(--accent);
    }
    .nav-links a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background-color: var(--accent);
        transition: var(--transition);
    }
    .nav-links a:hover::after {
        width: 100%;
    }
    .hamburger {
        display: none;
        flex-direction: column;
        cursor: pointer;
        background: transparent;
        border: none;
    }
    .hamburger span {
        height: 3px;
        width: 25px;
        background: white;
        margin: 4px 0;
        border-radius: 2px;
        transition: var(--transition);
    }
    .search-form {
        display: flex;
        margin-left: 2rem;
    }
    .search-form input {
        padding: 8px 12px;
        border: none;
        border-radius: var(--radius) 0 0 var(--radius);
        outline: none;
        width: 220px;
    }
    .search-form button {
        background-color: var(--secondary);
        color: white;
        border: none;
        padding: 8px 15px;
        border-radius: 0 var(--radius) var(--radius) 0;
        cursor: pointer;
        transition: var(--transition);
    }
    .search-form button:hover {
        background-color: #9b2c2c;
    }
    main {
        padding: 2rem 0;
    }
    .article-header {
        margin-bottom: 2.5rem;
        padding-bottom: 1.5rem;
        border-bottom: 2px solid var(--gray);
    }
    h1 {
        font-size: 2.8rem;
        color: var(--primary);
        margin-bottom: 1rem;
        line-height: 1.2;
    }
    .article-meta {
        color: var(--gray);
        font-size: 0.95rem;
        display: flex;
        align-items: center;
        gap: 15px;
    }
    .article-meta i {
        margin-right: 5px;
    }
    .content-grid {
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: 40px;
    }
    @media (max-width: 992px) {
        .content-grid {
            grid-template-columns: 1fr;
        }
    }
    article {
        font-size: 1.1rem;
    }
    article h2 {
        font-size: 2rem;
        color: var(--primary);
        margin: 2.5rem 0 1rem;
        padding-bottom: 0.5rem;
        border-bottom: 1px solid #e2e8f0;
    }
    article h3 {
        font-size: 1.6rem;
        color: var(--secondary);
        margin: 2rem 0 0.8rem;
    }
    article h4 {
        font-size: 1.3rem;
        color: var(--dark);
        margin: 1.5rem 0 0.6rem;
    }
    article p {
        margin-bottom: 1.5rem;
        text-align: justify;
    }
    article strong {
        color: var(--primary);
        font-weight: 700;
    }
    article em {
        color: var(--secondary);
        font-style: italic;
    }
    .highlight-box {
        background: linear-gradient(135deg, #fef3c7, #fde68a);
        border-left: 5px solid var(--accent);
        padding: 1.5rem;
        margin: 2rem 0;
        border-radius: 0 var(--radius) var(--radius) 0;
    }
    .image-wrapper {
        margin: 2.5rem 0;
        text-align: center;
    }
    .image-wrapper img {
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        margin: 0 auto;
    }
    .image-caption {
        font-size: 0.9rem;
        color: var(--gray);
        margin-top: 10px;
        font-style: italic;
    }
    .internal-links-list {
        background-color: #e6fffa;
        padding: 1.5rem;
        border-radius: var(--radius);
        margin: 2rem 0;
    }
    .internal-links-list h3 {
        margin-top: 0;
    }
    .internal-links-list ul {
        list-style: none;
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 10px;
    }
    .internal-links-list li {
        padding: 5px 0;
    }
    .internal-links-list li::before {
        content: '🔗';
        margin-right: 8px;
    }
    aside {
        background-color: white;
        padding: 1.5rem;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        height: fit-content;
        position: sticky;
        top: 120px;
    }
    .sidebar-widget {
        margin-bottom: 2rem;
    }
    .sidebar-widget h3 {
        color: var(--primary);
        margin-bottom: 1rem;
        padding-bottom: 0.5rem;
        border-bottom: 2px solid var(--accent);
    }
    .rating-widget form {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .stars {
        display: flex;
        justify-content: center;
        gap: 5px;
        font-size: 1.8rem;
        margin: 10px 0;
        color: var(--gray);
        cursor: pointer;
    }
    .stars .active {
        color: #f6ad55;
    }
    .comment-form textarea, .rating-widget select, .comment-form input {
        width: 100%;
        padding: 10px;
        border: 1px solid #cbd5e0;
        border-radius: var(--radius);
        margin-bottom: 10px;
        font-size: 1rem;
    }
    .comment-form button, .rating-widget button {
        background-color: var(--primary);
        color: white;
        border: none;
        padding: 12px 20px;
        border-radius: var(--radius);
        cursor: pointer;
        font-weight: 600;
        transition: var(--transition);
    }
    .comment-form button:hover, .rating-widget button:hover {
        background-color: var(--secondary);
    }
    footer {
        background-color: var(--dark);
        color: white;
        padding: 3rem 0 1.5rem;
        margin-top: 3rem;
    }
    .footer-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin-bottom: 2rem;
    }
    .footer-logo {
        font-size: 1.8rem;
        font-weight: 800;
        margin-bottom: 1rem;
        color: var(--accent);
    }
    friend-link {
        display: block;
        margin: 8px 0;
        color: var(--accent);
    }
    friend-link:hover {
        text-decoration: underline;
    }
    .copyright {
        text-align: center;
        padding-top: 1.5rem;
        border-top: 1px solid #4a5568;
        font-size: 0.9rem;
        color: var(--gray);
    }
    @media (max-width: 768px) {
        .header-container {
            flex-wrap: wrap;
        }
        .hamburger {
            display: flex;
        }
        .nav-links {
            position: fixed;
            top: 70px;
            left: -100%;
            width: 100%;
            height: calc(100vh - 70px);
            background-color: var(--primary);
            flex-direction: column;
            align-items: center;
            padding-top: 2rem;
            transition: var(--transition);
            z-index: 999;
        }
        .nav-links.active {
            left: 0;
        }
        .nav-links li {
            margin: 1rem 0;
        }
        .search-form {
            margin-left: 0;
            margin-top: 1rem;
            width: 100%;
            order: 3;
        }
        .search-form input {
            width: 100%;
        }
        h1 {
            font-size: 2.2rem;
        }
        .content-grid {
            gap: 20px;
        }
        aside {
            position: static;
        }
    }