:root {
            --primary: #1a5fb4; 
            --secondary: #c64600; 
            --accent: #26a269; 
            --light: #f6f5f4;
            --dark: #241f31;
            --gray: #deddda;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            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;
        }
        .site-header {
            background: linear-gradient(to right, var(--dark), 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: 2.2rem;
            font-weight: 900;
            letter-spacing: 2px;
            background: linear-gradient(45deg, #ff9a00, var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: inherit;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: #ff9a00;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--secondary);
            bottom: 0;
            left: 0;
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            background-color: var(--gray);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: var(--radius);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
        }
        .search-section {
            background-color: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto 0;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid var(--primary);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--secondary);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        main article {
            background-color: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid var(--secondary);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--dark);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--gray);
        }
        h3 {
            color: var(--primary);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--secondary);
            font-size: 1.2rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: rgba(26, 95, 180, 0.08);
            border-left: 4px solid var(--primary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        strong {
            color: var(--secondary);
            font-weight: 700;
        }
        em {
            color: var(--accent);
        }
        .feature-img {
            width: 100%;
            border-radius: var(--radius);
            border: 5px solid var(--gray);
            margin: 2rem auto;
            box-shadow: var(--shadow);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        aside {
            background-color: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: var(--dark);
            border-bottom: 2px solid var(--gray);
            padding-bottom: 0.5rem;
            margin-bottom: 1.2rem;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .link-list li::before {
            content: '🏈';
            position: absolute;
            left: 0;
        }
        .user-interaction {
            background-color: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 2.5rem 0;
        }
        .interaction-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        @media (max-width: 768px) {
            .interaction-form {
                grid-template-columns: 1fr;
            }
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 0.8rem;
            border: 1px solid var(--gray);
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: var(--gray);
            cursor: pointer;
            margin-top: 0.5rem;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #ffc107;
        }
        .btn-submit {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            grid-column: span 2;
            justify-self: center;
            min-width: 200px;
        }
        .btn-submit:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(198, 70, 0, 0.2);
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-col {
            flex: 1;
            min-width: 250px;
        }
        .footer-col h4 {
            color: #ff9a00;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #444;
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 0.8rem 1rem;
            margin-bottom: 0.8rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,154,0,0.2);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                right: -100%;
                width: 80%;
                max-width: 300px;
                background-color: var(--dark);
                height: calc(100vh - 70px);
                transition: right 0.4s ease;
                padding: 2rem;
                box-shadow: -5px 0 15px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .main-nav.active {
                right: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            main article {
                padding: 1.5rem;
            }
        }
        .schema-data {
            display: none;
        }
        .emoji-bullet::before {
            content: '👉 ';
        }
        .tip-box {
            background: linear-gradient(135deg, #e1f5fe, #b3e5fc);
            border: 2px dashed var(--primary);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .tip-title {
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.8rem;
        }