* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    :root {
        --primary: #4a6fa5;
        --secondary: #ff6b6b;
        --accent: #51cf66;
        --dark: #2c3e50;
        --light: #f8f9fa;
        --gray: #6c757d;
        --shadow: 0 4px 12px rgba(0,0,0,0.08);
        --transition: all 0.3s ease;
    }
    body {
        background-color: #fff;
        color: #333;
        line-height: 1.7;
        font-size: 1.1rem;
        overflow-x: hidden;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--secondary);
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    header {
        background-color: var(--dark);
        color: white;
        padding: 1rem 0;
        box-shadow: var(--shadow);
        position: sticky;
        top: 0;
        z-index: 1000;
    }
    .header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .my-logo {
        font-size: 2.2rem;
        font-weight: 800;
        color: white;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .my-logo i {
        color: var(--accent);
    }
    .my-logo:hover {
        color: var(--accent);
    }
    nav {
        display: flex;
        align-items: center;
    }
    .nav-links {
        display: flex;
        list-style: none;
        gap: 2rem;
    }
    .nav-links a {
        color: white;
        font-weight: 600;
        font-size: 1.05rem;
        padding: 0.5rem 0;
        position: relative;
    }
    .nav-links a:after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 3px;
        background: var(--accent);
        transition: var(--transition);
    }
    .nav-links a:hover:after {
        width: 100%;
    }
    .hamburger {
        display: none;
        font-size: 1.8rem;
        cursor: pointer;
        color: white;
    }
    .breadcrumb {
        background-color: #e9ecef;
        padding: 1rem 0;
        font-size: 0.95rem;
        margin-bottom: 2rem;
    }
    .breadcrumb ol {
        display: flex;
        list-style: none;
        flex-wrap: wrap;
    }
    .breadcrumb li:not(:last-child):after {
        content: '>';
        margin: 0 10px;
        color: var(--gray);
    }
    .breadcrumb a {
        color: var(--primary);
    }
    main {
        padding: 2rem 0;
        min-height: 80vh;
    }
    article {
        background: white;
        border-radius: 12px;
        padding: 2.5rem;
        box-shadow: var(--shadow);
        margin-bottom: 3rem;
    }
    h1 {
        color: var(--dark);
        font-size: 2.8rem;
        margin-bottom: 1.5rem;
        line-height: 1.2;
        border-left: 6px solid var(--accent);
        padding-left: 1rem;
    }
    h2 {
        color: var(--primary);
        font-size: 2.2rem;
        margin: 2.5rem 0 1.2rem;
        padding-bottom: 0.5rem;
        border-bottom: 2px dashed #eee;
    }
    h3 {
        color: var(--dark);
        font-size: 1.8rem;
        margin: 2rem 0 1rem;
    }
    h4 {
        color: #555;
        font-size: 1.4rem;
        margin: 1.5rem 0 0.8rem;
    }
    p {
        margin-bottom: 1.5rem;
        text-align: justify;
    }
    .lead {
        font-size: 1.3rem;
        color: var(--primary);
        font-weight: 600;
        margin-bottom: 2rem;
        padding: 1rem;
        background: #f1f8ff;
        border-radius: 8px;
        border-left: 4px solid var(--primary);
    }
    .highlight {
        background-color: #fff9db;
        padding: 1.5rem;
        border-radius: 8px;
        border-left: 5px solid #ffd43b;
        margin: 2rem 0;
    }
    .highlight strong {
        color: #e67700;
    }
    .emoji {
        font-size: 1.2em;
        margin-right: 5px;
    }
    .feature-img {
        width: 100%;
        max-width: 800px;
        height: auto;
        border-radius: 12px;
        box-shadow: 0 6px 20px rgba(0,0,0,0.1);
        margin: 2.5rem auto;
        display: block;
        transition: transform 0.5s ease;
    }
    .feature-img:hover {
        transform: scale(1.01);
    }
    .img-caption {
        text-align: center;
        font-style: italic;
        color: var(--gray);
        margin-top: 0.5rem;
        margin-bottom: 2rem;
    }
    ul, ol {
        margin-left: 2rem;
        margin-bottom: 1.5rem;
    }
    li {
        margin-bottom: 0.7rem;
    }
    .content-link {
        font-weight: 600;
        color: var(--secondary);
        border-bottom: 1px dotted var(--secondary);
    }
    .content-link:hover {
        border-bottom: 2px solid var(--secondary);
    }
    .quote {
        font-style: italic;
        padding: 2rem;
        background: #f8f9fa;
        border-radius: 10px;
        margin: 2.5rem 0;
        border-left: 5px solid var(--primary);
        color: #495057;
    }
    .quote-author {
        text-align: right;
        font-weight: bold;
        margin-top: 1rem;
        color: var(--dark);
    }
    .interactive-section {
        background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        padding: 2.5rem;
        border-radius: 12px;
        margin: 3rem 0;
        box-shadow: var(--shadow);
    }
    .interactive-section h3 {
        color: var(--primary);
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .search-box, .comment-form, .rating-form {
        margin-top: 1.5rem;
    }
    .form-group {
        margin-bottom: 1.2rem;
    }
    label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: 600;
        color: var(--dark);
    }
    input, textarea, select {
        width: 100%;
        padding: 0.9rem 1rem;
        border: 1px solid #ced4da;
        border-radius: 8px;
        font-size: 1rem;
        transition: var(--transition);
    }
    input:focus, textarea:focus, select:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.2);
    }
    button {
        background-color: var(--primary);
        color: white;
        border: none;
        padding: 0.9rem 2rem;
        border-radius: 8px;
        font-size: 1.05rem;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    button:hover {
        background-color: #3a5985;
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    }
    .stars {
        display: flex;
        gap: 10px;
        margin: 1rem 0;
    }
    .star {
        font-size: 2rem;
        color: #ddd;
        cursor: pointer;
        transition: var(--transition);
    }
    .star:hover,
    .star.active {
        color: #ffc107;
    }
    .update-time {
        background-color: #d4edda;
        color: #155724;
        padding: 1rem;
        border-radius: 8px;
        margin-top: 3rem;
        text-align: center;
        font-weight: 600;
        border: 1px solid #c3e6cb;
    }
    footer {
        background-color: var(--dark);
        color: white;
        padding: 3rem 0 2rem;
        margin-top: 3rem;
    }
    .footer-content {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2.5rem;
        margin-bottom: 2.5rem;
    }
    .footer-section h4 {
        color: white;
        margin-bottom: 1.5rem;
        font-size: 1.3rem;
        position: relative;
        padding-bottom: 0.7rem;
    }
    .footer-section h4:after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 50px;
        height: 3px;
        background: var(--accent);
    }
    .footer-links {
        list-style: none;
    }
    .footer-links li {
        margin-bottom: 0.8rem;
    }
    .footer-links a {
        color: #b0b7c3;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .footer-links a:hover {
        color: var(--accent);
        padding-left: 5px;
    }
    friend-link {
        display: block;
        background: rgba(255,255,255,0.05);
        padding: 1.5rem;
        border-radius: 8px;
        margin-top: 1rem;
    }
    friend-link a {
        color: #51cf66;
        font-weight: 600;
    }
    .copyright {
        text-align: center;
        padding-top: 2rem;
        border-top: 1px solid #495057;
        color: #b0b7c3;
        font-size: 0.95rem;
    }
    @media (max-width: 992px) {
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.6rem; }
        .nav-links {
            gap: 1.5rem;
        }
    }
    @media (max-width: 768px) {
        .hamburger {
            display: block;
        }
        .nav-links {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: var(--dark);
            flex-direction: column;
            align-items: center;
            padding: 2rem;
            gap: 1.5rem;
            clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
            transition: clip-path 0.4s ease;
        }
        .nav-links.active {
            clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
        }
        .header-content {
            flex-wrap: wrap;
        }
        article {
            padding: 1.8rem;
        }
        .interactive-section {
            padding: 1.8rem;
        }
    }
    @media (max-width: 576px) {
        h1 { font-size: 2rem; }
        h2 { font-size: 1.7rem; }
        h3 { font-size: 1.4rem; }
        .my-logo { font-size: 1.8rem; }
        .container { padding: 0 15px; }
        .lead { font-size: 1.1rem; }
    }