* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100%;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: #1a365d;
            margin-bottom: 1rem;
            font-weight: 700;
            line-height: 1.2;
        }
        h1 {
            font-size: 2.5rem;
            margin-top: 1.5rem;
            border-bottom: 3px solid #eab308;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            margin-top: 2.5rem;
            padding-left: 0.75rem;
            border-left: 4px solid #3b82f6;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
            color: #2563eb;
        }
        h4 {
            font-size: 1.25rem;
            margin-top: 1.5rem;
            color: #4f46e5;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        header {
            background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
            color: white;
            padding: 1rem 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;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: #fbbf24;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #fde047;
        }
        .my-logo span {
            color: #60a5fa;
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #1e3a8a;
            padding: 1rem;
            border-radius: 0 0 10px 10px;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 0.75rem 1.5rem;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #4f46e5;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            background-color: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            margin-bottom: 3rem;
        }
        .search-section {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            padding: 2rem;
            border-radius: 12px;
            margin-bottom: 3rem;
            text-align: center;
            border: 2px solid #bae6fd;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.875rem 1.25rem;
            border: 2px solid #3b82f6;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background-color: #3b82f6;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #2563eb;
        }
        .highlight-box {
            background-color: #fef3c7;
            border-left: 5px solid #f59e0b;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .reward-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .reward-card {
            background: white;
            border: 1px solid #e5e7eb;
            border-radius: 10px;
            padding: 1.5rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .reward-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            border-color: #3b82f6;
        }
        .reward-icon {
            font-size: 2rem;
            color: #10b981;
            margin-bottom: 1rem;
        }
        .user-feedback {
            background-color: #f8fafc;
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
            border: 1px solid #cbd5e1;
        }
        .rating-section, .comment-section {
            margin-bottom: 2rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #d1d5db;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #fbbf24;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #cbd5e1;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            margin: 1rem 0;
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: #10b981;
            color: white;
            border: none;
            padding: 0.875rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .submit-btn:hover {
            background-color: #059669;
        }
        .content-link {
            color: #2563eb;
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px dotted #2563eb;
            padding-bottom: 2px;
        }
        .content-link:hover {
            color: #1d4ed8;
            border-bottom-style: solid;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
            border: 3px solid #e5e7eb;
        }
        footer {
            background-color: #1e293b;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #fbbf24;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            display: block;
            margin-bottom: 0.75rem;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #60a5fa;
        }
        friend-link {
            display: block;
            background-color: #334155;
            padding: 1rem;
            margin: 0.5rem 0;
            border-radius: 6px;
            color: #cbd5e1;
        }
        friend-link a {
            color: #60a5fa;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #475569;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 992px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
            h3 {
                font-size: 1.35rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
            main {
                padding: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
            .reward-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .last-updated {
            background-color: #f3f4f6;
            padding: 0.75rem;
            border-radius: 6px;
            margin: 2rem 0;
            font-style: italic;
            color: #6b7280;
        }