:root {
            --primary: #FF6B35;
            --secondary: #004E89;
            --accent: #00A6A6;
            --light: #F7F9FC;
            --dark: #2D3142;
            --gray: #8C8C8C;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Nirmala UI', sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        header {
            background: linear-gradient(135deg, var(--dark), var(--secondary));
            color: white;
            padding: 1rem 5%;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2.2rem;
        }
        .logo span {
            background: linear-gradient(to right, #FF6B35, #FFD166);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: var(--primary);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 5%;
            background-color: #f0f0f0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: 15px;
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        h1 {
            color: var(--secondary);
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            border-bottom: 4px solid var(--primary);
            padding-bottom: 1rem;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-left: 1rem;
            border-left: 5px solid var(--accent);
        }
        h3 {
            color: var(--dark);
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(120deg, #FFEAA7 0%, #FFEAA7 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .info-box {
            background: #E3F2FD;
            border-left: 5px solid var(--secondary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .info-box h4 {
            color: var(--secondary);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-img:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            border-radius: 10px;
            overflow: hidden;
        }
        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: var(--secondary);
            color: white;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        tr:hover {
            background-color: #f1f1f1;
        }
        .form-section {
            background: white;
            border-radius: 15px;
            padding: 2rem;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .form-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--secondary);
            margin-bottom: 1.5rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            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(255, 107, 53, 0.2);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), #FF8E53);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 1rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 107, 53, 0.4);
        }
        .rating {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .stars {
            display: flex;
            gap: 0.3rem;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star.active,
        .star:hover {
            color: #FFD700;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-box {
            background: white;
            border-radius: 15px;
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            color: var(--secondary);
            border-bottom: 3px solid var(--primary);
            padding-bottom: 0.8rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .download-card {
            text-align: center;
            background: linear-gradient(135deg, var(--secondary), #0066B3);
            color: white;
            padding: 2rem;
            border-radius: 15px;
        }
        .download-btn {
            background: var(--primary);
            margin-top: 1.5rem;
            font-size: 1.2rem;
            padding: 1.2rem;
        }
        .long-tail-links {
            background: var(--dark);
            padding: 3rem 5%;
            margin-top: 3rem;
        }
        .web-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .web-link:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 3rem 5% 1.5rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                flex-direction: column;
                background: var(--dark);
                padding: 2rem;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .nav-links.active {
                left: 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 2rem;
            }
            .container {
                padding: 0 1rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .delay-1 { animation-delay: 0.2s; }
        .delay-2 { animation-delay: 0.4s; }
        .delay-3 { animation-delay: 0.6s; }