* { 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: linear-gradient(135deg, #f9f9ff 0%, #f0f2ff 100%);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #1a237e; font-weight: 700; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); margin-top: 1.5rem; border-bottom: 3px solid #ffc107; padding-bottom: 0.5rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #3f51b5; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.8rem); margin-top: 2rem; color: #3949ab; }
        h4 { font-size: 1.3rem; color: #5c6bc0; margin-top: 1.5rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        a { color: #303f9f; text-decoration: none; transition: color 0.3s, background 0.3s; }
        a:hover { color: #ff5722; }
        strong { color: #d32f2f; font-weight: 700; }
        em { color: #388e3c; }
        blockquote {
            border-left: 4px solid #ffc107;
            padding: 1rem 1.5rem;
            margin: 2rem 0;
            background: #fffde7;
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        ul, ol { margin: 1rem 0 1.5rem 2rem; }
        li { margin-bottom: 0.5rem; }
        hr { border: none; height: 2px; background: linear-gradient(to right, transparent, #3f51b5, transparent); margin: 3rem 0; }
        .site-header {
            background: linear-gradient(90deg, #1a237e, #303f9f);
            color: white;
            padding: 1rem 0;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffc107;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { color: #ffecb3; transform: scale(1.02); }
        .my-logo i { font-size: 2.5rem; }
        .nav-primary { display: flex; align-items: center; }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-list a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list a:hover { background: rgba(255,255,255,0.15); color: #ffc107; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.95rem;
            color: #666;
        }
        .breadcrumb a { color: #5c6bc0; }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-module {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #c5cae9;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-input:focus { border-color: #3f51b5; }
        .search-btn {
            background: linear-gradient(90deg, #ff9800, #ff5722);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 0 50px 50px 0;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.3s, opacity 0.3s;
        }
        .search-btn:hover { transform: translateY(-2px); opacity: 0.95; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: #757575;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #ddd;
        }
        .featured-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem auto;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 5px solid white;
            outline: 1px solid #eee;
        }
        .content-highlight {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            padding: 2rem;
            border-radius: 12px;
            margin: 2.5rem 0;
            border-left: 6px solid #7e57c2;
        }
        .internal-links-box {
            background: #f5f5f5;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links-box h4 { margin-top: 0; }
        .internal-links-box ul { list-style: none; margin-left: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 0.8rem; }
        .internal-links-box li { margin-bottom: 0; }
        .internal-links-box a { display: block; padding: 0.7rem; background: white; border-radius: 5px; border: 1px solid #ddd; }
        .internal-links-box a:hover { background: #e8eaf6; border-color: #3f51b5; }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 { font-size: 1.4rem; margin-top: 0; border-bottom: 2px solid #ffc107; padding-bottom: 0.5rem; }
        .rating-widget .stars { display: flex; justify-content: center; gap: 0.5rem; margin: 1rem 0; font-size: 1.8rem; color: #ffc107; }
        .rating-form { display: flex; flex-direction: column; gap: 1rem; }
        .rating-form select, .rating-form textarea, .rating-form input {
            padding: 0.8rem;
            border: 1px solid #c5cae9;
            border-radius: 8px;
            font-family: inherit;
        }
        .rating-form button {
            background: #4caf50;
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
        }
        .rating-form button:hover { background: #388e3c; }
        .comments-section { margin-top: 4rem; }
        .comment-form { display: grid; gap: 1rem; margin-bottom: 3rem; }
        .comment-form input, .comment-form textarea {
            padding: 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .comment-form input:focus, .comment-form textarea:focus { border-color: #3f51b5; outline: none; }
        .comment-form button {
            background: #303f9f;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            justify-self: start;
            transition: background 0.3s;
        }
        .comment-form button:hover { background: #1a237e; }
        .comment-list { display: flex; flex-direction: column; gap: 2rem; }
        .comment {
            background: #f9f9ff;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 4px solid #3f51b5;
        }
        .comment-header { display: flex; justify-content: space-between; margin-bottom: 0.8rem; font-size: 0.9rem; color: #666; }
        .site-footer {
            background: linear-gradient(90deg, #1a237e, #303f9f);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-radius: 12px 12px 0 0;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-widget h4 { color: #ffc107; margin-top: 0; font-size: 1.3rem; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #c5cae9; display: flex; align-items: center; gap: 0.5rem; }
        .footer-links a:hover { color: #ffc107; padding-left: 5px; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
        }
        friend-link a { color: #ffcc80; font-weight: bold; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #bdbdbd;
        }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; }
            .nav-primary { width: 100%; margin-top: 1rem; }
            .nav-list {
                flex-direction: column;
                width: 100%;
                display: none;
                gap: 0;
            }
            .nav-list.active { display: flex; }
            .nav-list li { width: 100%; }
            .nav-list a { padding: 1rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
            .hamburger { display: block; align-self: flex-end; margin-top: -3rem; }
            .article-content { padding: 1.5rem; }
            .search-form { flex-direction: column; }
            .search-input, .search-btn { border-radius: 50px; width: 100%; }
            .search-input { margin-bottom: 0.5rem; }
        }