* {
            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-color: #f8f9fa;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        ul, ol {
            list-style: none;
        }
        button, input, textarea, select {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .grid-main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        @media (max-width: 992px) {
            .grid-main {
                grid-template-columns: 1fr;
            }
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #1a365d;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #e31837;
            padding-bottom: 10px;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 2.5rem;
            padding-left: 15px;
            border-left: 5px solid #0066b3;
        }
        h3 {
            font-size: 1.8rem;
            color: #e31837;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #444;
            background-color: #e9f5ff;
            padding: 20px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 2px 5px;
            border-radius: 3px;
            font-weight: 600;
        }
        b, strong {
            color: #1a365d;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #0066b3 100%);
            color: white;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo .ball {
            color: #e31837;
            animation: spin 5s linear infinite;
        }
        @keyframes spin {
            100% { transform: rotate(360deg); }
        }
        .nav-desktop ul {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 5px;
            position: relative;
        }
        .nav-desktop a:hover {
            color: #ffcc00;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #ffcc00;
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            position: fixed;
            top: 80px;
            right: -100%;
            width: 280px;
            height: calc(100vh - 80px);
            background-color: #1a365d;
            transition: right 0.4s ease;
            padding: 30px;
            overflow-y: auto;
            box-shadow: -5px 0 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            right: 0;
        }
        .nav-mobile ul {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .nav-mobile a {
            font-size: 1.2rem;
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:hover {
            color: #ffcc00;
            padding-left: 10px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 0;
            margin: 10px 0 20px;
            border-radius: 5px;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            color: #666;
        }
        .breadcrumb a:hover {
            color: #e31837;
            text-decoration: underline;
        }
        .article-content {
            background-color: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
            color: #666;
            font-size: 0.95rem;
        }
        .featured-image {
            margin: 30px 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 10px;
            background-color: #f8f9fa;
            color: #666;
        }
        .content-block {
            margin-bottom: 40px;
        }
        .content-block ul, .content-block ol {
            margin-left: 25px;
            margin-bottom: 1.5rem;
        }
        .content-block ul {
            list-style: disc;
        }
        .content-block ol {
            list-style: decimal;
        }
        .content-block li {
            margin-bottom: 0.8rem;
        }
        .quote {
            border-left: 5px solid #e31837;
            padding: 20px 25px;
            margin: 30px 0;
            background-color: #f8f9fa;
            font-style: italic;
            font-size: 1.2rem;
        }
        .author {
            text-align: right;
            font-weight: bold;
            margin-top: 10px;
            color: #1a365d;
        }
        .tip-box {
            background-color: #d4edda;
            border-left: 5px solid #28a745;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box h4 {
            color: #155724;
            margin-top: 0;
        }
        .sidebar {
            background-color: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: #e31837;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-size: 1.1rem;
        }
        .search-form button:hover {
            background-color: #c41230;
        }
        .related-links a {
            display: block;
            padding: 12px 15px;
            margin-bottom: 10px;
            background-color: #f8f9fa;
            border-radius: 5px;
            border-left: 4px solid #0066b3;
        }
        .related-links a:hover {
            background-color: #e9ecef;
            transform: translateX(5px);
        }
        .interactive-section {
            background-color: #f0f8ff;
            padding: 30px;
            border-radius: 15px;
            margin: 40px 0;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #1a365d;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #bdc3c7;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #0066b3;
            box-shadow: 0 0 0 3px rgba(0,102,179,0.2);
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffcc00;
        }
        .btn-submit {
            background-color: #28a745;
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .btn-submit:hover {
            background-color: #218838;
        }
        .footer-links {
            background-color: #1a365d;
            color: white;
            padding: 40px 0;
            margin-top: 50px;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }
        @media (max-width: 992px) {
            .web-link-container {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 576px) {
            .web-link-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background-color: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            transition: all 0.3s;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            color: #ffcc00;
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .site-footer {
            background-color: #0c1c33;
            color: #aaa;
            text-align: center;
            padding: 25px 0;
            font-size: 0.95rem;
        }
        .footer-links a {
            color: #ffcc00;
        }
        .footer-links a:hover {
            text-decoration: underline;
        }