* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #0c1a2d 0%, #1a3a5f 100%);
            background-attachment: fixed;
            min-height: 100vh;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(12, 26, 45, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.5);
            border-bottom: 2px solid #ffde59;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 0;
        }
        .my-logo {
            font-family: 'Trebuchet MS', sans-serif;
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffde59, #ff8a00);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: 1px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .desktop-nav {
            display: flex;
            gap: 2.5rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: #e6f0ff;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.7rem 1rem;
            border-radius: 6px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-link:hover {
            background: rgba(255, 222, 89, 0.2);
            color: #ffde59;
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ffde59;
            font-size: 2rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #0c1a2d;
            padding: 1.5rem;
            gap: 1rem;
            border-top: 1px solid #2a4a7a;
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.2rem;
            border-radius: 10px;
            margin: 2rem 0;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #8cb4ff;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #ffde59;
            text-decoration: underline;
        }
        main {
            background: rgba(255, 255, 255, 0.98);
            border-radius: 20px;
            box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
            padding: 3rem;
            margin: 2.5rem 0;
            position: relative;
            overflow: hidden;
        }
        main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, #ffde59, #ff8a00, #ffde59);
        }
        h1 {
            font-size: 3.2rem;
            color: #0c1a2d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2.4rem;
            color: #1a3a5f;
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 3px solid #ffde59;
        }
        h3 {
            font-size: 1.8rem;
            color: #2a4a7a;
            margin: 2.5rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #3a5a8a;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.4rem;
            font-weight: 500;
            color: #1a3a5f;
            background: #f0f7ff;
            padding: 2rem;
            border-left: 6px solid #ffde59;
            border-radius: 0 12px 12px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ffde59 0%, #ffde59 100%);
            background-position: 0 90%;
            background-repeat: no-repeat;
            background-size: 100% 10px;
            padding: 0.2rem 0.4rem;
            font-weight: 700;
            color: #0c1a2d;
        }
        .blockquote {
            font-style: italic;
            padding: 2.5rem;
            margin: 2.5rem 0;
            background: linear-gradient(135deg, #f0f7ff, #e6f0ff);
            border-radius: 15px;
            border-left: 8px solid #2a4a7a;
            box-shadow: 0 10px 25px rgba(42, 74, 122, 0.1);
            position: relative;
        }
        .blockquote::before {
            content: "“";
            font-size: 6rem;
            color: #ffde59;
            position: absolute;
            top: -1rem;
            left: 1rem;
            opacity: 0.6;
        }
        .article-img {
            width: 100%;
            max-width: 900px;
            height: auto;
            border-radius: 15px;
            margin: 2.5rem auto;
            display: block;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 1rem;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .feature-card {
            background: #f8fbff;
            border-radius: 15px;
            padding: 2.5rem 2rem;
            text-align: center;
            border: 2px solid transparent;
            transition: all 0.4s ease;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        .feature-card:hover {
            border-color: #ffde59;
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(255, 222, 89, 0.2);
        }
        .feature-icon {
            font-size: 3.5rem;
            color: #ff8a00;
            margin-bottom: 1.5rem;
        }
        .interactive-section {
            background: #0c1a2d;
            color: white;
            padding: 3rem;
            border-radius: 20px;
            margin: 4rem 0;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2.5rem;
            margin-top: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.8rem;
            font-weight: 600;
            color: #ffde59;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 1.2rem;
            border-radius: 10px;
            border: 2px solid #2a4a7a;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1.1rem;
            transition: border 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #ffde59;
            box-shadow: 0 0 0 3px rgba(255, 222, 89, 0.3);
        }
        .btn {
            background: linear-gradient(90deg, #ffde59, #ff8a00);
            color: #0c1a2d;
            border: none;
            padding: 1.2rem 2.5rem;
            font-size: 1.2rem;
            font-weight: 700;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.8rem;
        }
        .btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(255, 222, 89, 0.5);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #ccc;
            cursor: pointer;
            font-size: 2rem;
            transition: color 0.3s ease;
        }
        .star:hover,
        .star.active {
            color: #ffde59;
        }
        footer {
            background: #0a1525;
            color: #b3c7e6;
            padding: 4rem 0 2rem;
            margin-top: 5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h4 {
            color: #ffde59;
            font-size: 1.5rem;
            margin-bottom: 1.8rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1.2rem;
        }
        friend-link a {
            color: #8cb4ff;
            text-decoration: none;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        friend-link a:hover {
            color: #ffde59;
            transform: translateX(10px);
        }
        .copyright {
            text-align: center;
            padding-top: 2.5rem;
            border-top: 1px solid #2a4a7a;
            font-size: 1rem;
            color: #8cb4ff;
        }
        .last-updated {
            background: #f0f7ff;
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
            margin: 2rem 0;
            font-weight: 600;
            color: #2a4a7a;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
        }
        .tag {
            display: inline-block;
            background: #e6f0ff;
            color: #2a4a7a;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin: 0.5rem;
            transition: all 0.3s ease;
        }
        .tag:hover {
            background: #ffde59;
            transform: scale(1.05);
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            main { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.9rem; }
            .intro { font-size: 1.2rem; }
            .features-grid { grid-template-columns: 1fr; }
            .form-grid { grid-template-columns: 1fr; }
            .interactive-section { padding: 2rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 2rem; }
            .my-logo { font-size: 2rem; }
            main { padding: 1.5rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        main, .feature-card, .interactive-section {
            animation: fadeIn 0.8s ease-out;
        }