* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
            font-size: 1.1rem;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff9a00, #ff0058);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo a:hover {
            opacity: 0.9;
        }
        .search-box {
            display: flex;
            flex: 0 1 400px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            background: #fff;
        }
        .search-box button {
            background: #ff0058;
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #e6004c;
        }
        nav {
            background-color: #0f3460;
            padding: 0;
        }
        .nav-desktop {
            display: flex;
            justify-content: center;
        }
        .nav-desktop a {
            padding: 18px 24px;
            display: inline-block;
            color: #fff;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            transition: all 0.3s;
            border-bottom: 4px solid transparent;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            background-color: #1a5f9e;
            border-bottom-color: #ff9a00;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #fff;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #0f3460;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .nav-mobile a {
            padding: 18px 24px;
            color: #fff;
            font-weight: 600;
            border-bottom: 1px solid #1a5f9e;
            transition: background 0.3s;
        }
        .nav-mobile a:hover {
            background-color: #1a5f9e;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e9ecef;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: #666;
        }
        .breadcrumb a {
            color: #0f3460;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 30px auto;
        }
        .article-header {
            text-align: center;
            margin-bottom: 50px;
            padding-bottom: 30px;
            border-bottom: 2px dashed #ddd;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #16213e;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: #666;
            font-size: 0.95rem;
        }
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .content-section {
            padding: 0 40px;
        }
        .content-section h2 {
            font-size: 2.2rem;
            color: #0f3460;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #ff9a00;
        }
        .content-section h3 {
            font-size: 1.8rem;
            color: #1a5f9e;
            margin: 30px 0 15px;
        }
        .content-section p {
            margin-bottom: 25px;
            text-align: justify;
            font-size: 1.2rem;
            line-height: 1.9;
        }
        .content-section emoji {
            font-size: 1.4rem;
            margin-right: 5px;
        }
        .content-section strong {
            color: #ff0058;
            font-weight: 800;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff9e6 0%, #ffe6cc 100%);
            border-left: 6px solid #ff9a00;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .image-container {
            margin: 40px auto;
            text-align: center;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            transition: transform 0.5s;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .user-interaction {
            background-color: #f1f8ff;
            padding: 40px;
            border-radius: 15px;
            margin: 50px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .user-interaction h2 {
            text-align: center;
            color: #0f3460;
            margin-bottom: 30px;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .interaction-card {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }
        .interaction-card:hover {
            transform: translateY(-10px);
        }
        .interaction-card h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #1a5f9e;
            margin-bottom: 20px;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #ff9a00;
            outline: none;
        }
        .interaction-card button {
            background: linear-gradient(90deg, #ff9a00, #ff0058);
            color: white;
            border: none;
            padding: 15px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: opacity 0.3s;
        }
        .interaction-card button:hover {
            opacity: 0.9;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2rem;
            color: #ffd700;
            margin: 10px 0;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .footer-links {
            background-color: #16213e;
            padding: 50px 0 30px;
            color: #fff;
        }
        .footer-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 30px;
        }
        .web-link {
            background: rgba(255,255,255,0.1);
            padding: 20px;
            border-radius: 8px;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .web-link a {
            color: #ff9a00;
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: #0f3460;
            color: #fff;
            text-align: center;
            padding: 30px 0;
            font-size: 0.95rem;
        }
        .footer-bottom {
            border-top: 1px solid #1a5f9e;
            padding-top: 20px;
            margin-top: 20px;
        }
        @media (max-width: 992px) {
            .content-section {
                padding: 0 20px;
            }
            .article-header h1 {
                font-size: 2.4rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-box {
                width: 100%;
                max-width: 500px;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .nav-mobile.active {
                display: flex;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .content-section h2 {
                font-size: 1.8rem;
            }
            .content-section h3 {
                font-size: 1.5rem;
            }
            .content-section p {
                font-size: 1.1rem;
            }
            .user-interaction {
                padding: 30px 20px;
            }
        }
        @media (max-width: 480px) {
            .meta-info {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .content-section {
                padding: 0 15px;
            }
        }