* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
        }
        :root {
            --primary: #1A237E;
            --secondary: #B71C1C;
            --accent: #FFC107;
            --light: #F5F5F5;
            --dark: #212121;
            --gold: #FFD700;
            --silver: #C0C0C0;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            padding-bottom: 60px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            position: relative;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: bold;
            text-align: center;
            color: var(--gold);
            text-shadow: 3px 3px 6px rgba(0,0,0,0.4);
            letter-spacing: 2px;
            font-family: 'Times New Roman', serif;
        }
        .logo span {
            color: var(--silver);
        }
        nav {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .nav-links {
            display: flex;
            justify-content: center;
            list-style: none;
            gap: 35px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 6px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-links a:hover {
            background-color: var(--accent);
            color: var(--dark);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 2rem;
            color: white;
            position: absolute;
            right: 20px;
            top: 25px;
            z-index: 100;
        }
        main {
            max-width: 1200px;
            margin: 40px auto;
            padding: 0 20px;
        }
        .content-section {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin-bottom: 40px;
            border-top: 5px solid var(--primary);
        }
        h1 {
            color: var(--primary);
            font-size: 2.5rem;
            margin-bottom: 25px;
            border-bottom: 4px solid var(--accent);
            padding-bottom: 12px;
            font-family: 'Georgia', serif;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 30px 0 18px;
            padding-left: 15px;
            border-left: 5px solid var(--primary);
            font-family: 'Georgia', serif;
        }
        h3 {
            color: var(--dark);
            font-size: 1.5rem;
            margin: 25px 0 12px;
            font-weight: 600;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
            font-size: 1.05rem;
        }
        .btn {
            display: inline-block;
            padding: 12px 25px;
            background-color: var(--accent);
            color: var(--dark);
            text-decoration: none;
            border-radius: 8px;
            font-weight: bold;
            margin: 15px 8px;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            font-size: 1.05rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .btn:hover {
            background-color: var(--primary);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.3);
        }
        .btn-download {
            background-color: var(--secondary);
            color: white;
        }
        .btn-login {
            background-color: var(--primary);
            color: white;
        }
        .feature-box {
            background-color: #f0f4f8;
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
            border-left: 6px solid var(--accent);
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        th, td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: var(--primary);
            color: white;
            font-weight: 600;
        }
        tr:hover {
            background-color: #f8f9fa;
            transform: scale(1.01);
            transition: transform 0.2s;
        }
        .highlight {
            background-color: #FFF9C4;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: bold;
            color: var(--primary);
            border-bottom: 2px dotted var(--accent);
        }
        .note {
            background-color: #FFEBEE;
            padding: 20px;
            border-left: 5px solid var(--secondary);
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 40px 0;
            margin-top: 60px;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 40px;
        }
        .footer-section h3 {
            color: var(--gold);
            margin-bottom: 20px;
            font-size: 1.4rem;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section ul li {
            margin-bottom: 12px;
        }
        .footer-section a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: var(--accent);
            padding-left: 5px;
            transition: all 0.3s;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #444;
            font-size: 0.95rem;
            color: #aaa;
        }
        .recommendation {
            background-color: #E8F5E9;
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            text-align: center;
            border: 3px dashed var(--accent);
            background-image: linear-gradient(to right, rgba(255,255,255,0.8), rgba(255,255,255,0.9));
        }
        .recommendation h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.6rem;
        }
        .tag {
            display: inline-block;
            background-color: var(--accent);
            color: var(--dark);
            padding: 8px 15px;
            border-radius: 25px;
            font-size: 0.95rem;
            margin: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }
        .tag:hover {
            background-color: var(--primary);
            color: white;
            transform: scale(1.05);
        }
        .emoji-box {
            font-size: 1.5rem;
            margin-right: 10px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                text-align: center;
                padding: 20px 0;
                background-color: var(--primary);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                width: 100%;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
                z-index: 99;
            }
            .nav-links.active {
                display: flex;
            }
            .logo {
                font-size: 1.8rem;
                text-align: left;
                padding-left: 20px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
            .content-section {
                padding: 20px;
            }
            .btn {
                display: block;
                width: 90%;
                margin: 10px auto;
                text-align: center;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content-section {
            animation: fadeIn 0.5s ease forwards;
        }
        .content-section:nth-child(odd) {
            animation-delay: 0.1s;
        }
        .content-section:nth-child(even) {
            animation-delay: 0.2s;
        }