:root {
        --primary: #2c3e50;
        --secondary: #3498db;
        --accent: #e74c3c;
        --light: #ecf0f1;
        --dark: #2c3e50;
        --gray: #7f8c8d;
        --shadow: 0 4px 12px rgba(0,0,0,0.1);
        --transition: all 0.3s ease;
        --border-radius: 8px;
    }
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        background-color: #f9f9f9;
        color: #333;
        line-height: 1.7;
        max-width: 100vw;
        overflow-x: hidden;
    }
    a {
        color: var(--secondary);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--accent);
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    header {
        background: var(--primary);
        color: white;
        padding: 1rem 0;
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: var(--shadow);
    }
    .header-content {
        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;
    }
    .my-logo span {
        color: var(--secondary);
    }
    nav.desktop-nav {
        display: flex;
        gap: 2rem;
    }
    @media (max-width: 768px) {
        nav.desktop-nav {
            display: none;
        }
    }
    nav.desktop-nav a {
        color: var(--light);
        font-weight: 500;
    }
    .hamburger {
        display: none;
        font-size: 1.5rem;
        background: none;
        border: none;
        color: white;
        cursor: pointer;
    }
    @media (max-width: 768px) {
        .hamburger {
            display: block;
        }
    }
    .mobile-nav {
        display: none;
        flex-direction: column;
        background: var(--dark);
        padding: 1rem;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        box-shadow: var(--shadow);
    }
    .mobile-nav.active {
        display: flex;
    }
    .mobile-nav a {
        color: white;
        padding: 0.8rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .breadcrumb {
        background: #e0e0e0;
        padding: 0.8rem 20px;
        font-size: 0.9rem;
        color: var(--gray);
    }
    .breadcrumb a {
        color: var(--secondary);
    }
    main {
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: 2rem;
        padding: 2rem 0;
    }
    @media (max-width: 992px) {
        main {
            grid-template-columns: 1fr;
        }
    }
    .article-content {
        background: white;
        padding: 2rem;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
    }
    h1 {
        color: var(--primary);
        font-size: 2.5rem;
        margin-bottom: 1rem;
        line-height: 1.2;
        border-bottom: 3px solid var(--secondary);
        padding-bottom: 0.5rem;
    }
    @media (max-width: 768px) {
        h1 {
            font-size: 2rem;
        }
    }
    h2 {
        color: var(--dark);
        margin: 2rem 0 1rem;
        padding-bottom: 0.5rem;
        border-bottom: 1px solid #eee;
    }
    h3 {
        color: var(--secondary);
        margin: 1.5rem 0 0.8rem;
    }
    h4 {
        color: var(--gray);
        margin: 1.2rem 0 0.5rem;
    }
    p {
        margin-bottom: 1.2rem;
        text-align: justify;
    }
    .lead {
        font-size: 1.2rem;
        color: var(--primary);
        font-weight: 600;
        margin-bottom: 1.5rem;
    }
    .highlight {
        background-color: #fffacd;
        padding: 1rem;
        border-left: 4px solid var(--secondary);
        margin: 1.5rem 0;
        font-style: italic;
    }
    .info-box {
        background: #e8f4fc;
        border: 1px solid var(--secondary);
        border-radius: var(--border-radius);
        padding: 1.5rem;
        margin: 1.5rem 0;
    }
    .emoji {
        font-size: 1.2em;
        margin-right: 0.3rem;
    }
    img.responsive {
        max-width: 100%;
        height: auto;
        border-radius: var(--border-radius);
        margin: 1.5rem 0;
        display: block;
        box-shadow: var(--shadow);
    }
    .float-right {
        float: right;
        margin-left: 1.5rem;
        max-width: 50%;
    }
    @media (max-width: 768px) {
        .float-right {
            float: none;
            margin: 1rem auto;
            max-width: 100%;
        }
    }
    .link-list {
        list-style: none;
        background: #f8f9fa;
        padding: 1.5rem;
        border-radius: var(--border-radius);
        margin: 1.5rem 0;
    }
    .link-list li {
        margin-bottom: 0.8rem;
        padding-left: 1.5rem;
        position: relative;
    }
    .link-list li:before {
        content: '🚗';
        position: absolute;
        left: 0;
    }
    aside.sidebar {
        background: white;
        padding: 1.5rem;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
        align-self: start;
        position: sticky;
        top: 120px;
    }
    .widget {
        margin-bottom: 2rem;
    }
    .widget h3 {
        font-size: 1.2rem;
        margin-bottom: 1rem;
        color: var(--primary);
    }
    .search-form input {
        width: 100%;
        padding: 0.8rem;
        border: 1px solid #ccc;
        border-radius: var(--border-radius);
        margin-bottom: 0.5rem;
    }
    .search-form button {
        width: 100%;
        background: var(--secondary);
        color: white;
        border: none;
        padding: 0.8rem;
        border-radius: var(--border-radius);
        cursor: pointer;
        transition: var(--transition);
    }
    .search-form button:hover {
        background: var(--primary);
    }
    .rating-widget {
        text-align: center;
    }
    .stars {
        font-size: 1.8rem;
        color: #ffc107;
        margin: 0.5rem 0;
        cursor: pointer;
    }
    .stars span {
        margin: 0 2px;
    }
    .stars span:hover,
    .stars span.active {
        color: #fd7e14;
    }
    .comment-form textarea {
        width: 100%;
        padding: 0.8rem;
        border: 1px solid #ccc;
        border-radius: var(--border-radius);
        margin-bottom: 0.5rem;
        min-height: 120px;
        resize: vertical;
    }
    .comment-form input[type="text"],
    .comment-form input[type="email"] {
        width: 100%;
        padding: 0.8rem;
        border: 1px solid #ccc;
        border-radius: var(--border-radius);
        margin-bottom: 0.5rem;
    }
    .comment-form button {
        background: var(--accent);
        color: white;
        border: none;
        padding: 0.8rem 1.5rem;
        border-radius: var(--border-radius);
        cursor: pointer;
        transition: var(--transition);
    }
    .comment-form button:hover {
        background: #c0392b;
    }
    .update-time {
        font-size: 0.9rem;
        color: var(--gray);
        text-align: center;
        padding-top: 1rem;
        border-top: 1px solid #eee;
    }
    footer {
        background: var(--primary);
        color: white;
        padding: 2rem 0;
        margin-top: 2rem;
    }
    .footer-content {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 2rem;
    }
    .footer-section {
        flex: 1;
        min-width: 250px;
    }
    .footer-section h3 {
        color: white;
        margin-bottom: 1rem;
        font-size: 1.3rem;
    }
    friend-link {
        display: block;
        margin-bottom: 0.5rem;
        color: #ddd;
    }
    friend-link a {
        color: #ddd;
    }
    friend-link a:hover {
        color: white;
        text-decoration: underline;
    }
    .copyright {
        text-align: center;
        padding-top: 2rem;
        margin-top: 2rem;
        border-top: 1px solid rgba(255,255,255,0.1);
        font-size: 0.9rem;
        color: #bbb;
    }
    .btn {
        display: inline-block;
        background: var(--secondary);
        color: white;
        padding: 0.7rem 1.5rem;
        border-radius: var(--border-radius);
        font-weight: 600;
        transition: var(--transition);
        border: none;
        cursor: pointer;
    }
    .btn:hover {
        background: var(--primary);
        transform: translateY(-3px);
        box-shadow: var(--shadow);
    }
    .text-center {
        text-align: center;
    }
    .mb-2 {
        margin-bottom: 2rem;
    }
    .mt-2 {
        margin-top: 2rem;
    }