* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #FF6B6B;
            --secondary-color: #4ECDC4;
            --accent-color: #FFD166;
            --dark-color: #2D3047;
            --light-color: #F7FFF7;
            --gray-color: #6C757D;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style-position: inside;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .bold { font-weight: 700; }
        .highlight {
            background-color: var(--accent-color);
            padding: 2px 6px;
            border-radius: 3px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        .btn:hover {
            background-color: #e55a5a;
            transform: translateY(-3px);
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--dark-color);
        }
        .nav-links {
            display: flex;
            gap: 25px;
        }
        .nav-links a {
            font-weight: 600;
            color: var(--dark-color);
            padding: 5px 0;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary-color);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary-color);
            transition: width 0.3s;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark-color);
        }
        .breadcrumb {
            background-color: #f1f1f1;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray-color);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb span {
            color: var(--gray-color);
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-color);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 10px;
            border-bottom: 2px dashed var(--secondary-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary-color);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--dark-color);
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--gray-color);
            font-weight: 500;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .info-box {
            background-color: #e8f4f8;
            border-left: 5px solid var(--secondary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 30px 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        aside {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--dark-color);
            padding-bottom: 8px;
            border-bottom: 1px solid #eee;
        }
        .search-box {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 30px 0 0 30px;
            outline: none;
        }
        .search-box button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
        }
        .quick-links li {
            padding: 10px 0;
            border-bottom: 1px dotted #eee;
        }
        .quick-links li:last-child {
            border-bottom: none;
        }
        .quick-links a {
            color: var(--gray-color);
            transition: var(--transition);
            display: block;
        }
        .quick-links a:hover {
            color: var(--primary-color);
            padding-left: 8px;
        }
        .quick-links i {
            margin-right: 10px;
            color: var(--secondary-color);
        }
        .interaction-form {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin-top: 30px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-color);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 15px;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--accent-color);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 15px;
        }
        .footer-links h4 {
            color: var(--accent-color);
            margin-bottom: 20px;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 8px 15px;
            border-radius: 5px;
            margin: 5px;
            color: #ccc;
            transition: var(--transition);
        }
        friend-link:hover {
            background: var(--primary-color);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                left: 0;
                background: white;
                width: 100%;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                box-shadow: var(--shadow);
                transform: translateY(-150%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.3s ease;
                z-index: 999;
            }
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links li {
                margin: 15px 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 25px;
            }
        }