* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a237e;
            --secondary: #ff4081;
            --accent: #4caf50;
            --light: #f5f5f7;
            --dark: #121212;
            --gray: #757575;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.8;
            color: var(--dark);
            background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
            min-height: 100vh;
        }
        h1, h2, h3, h4 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-weight: 700;
            line-height: 1.3;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            border-left: 6px solid var(--secondary);
            padding-left: 1.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.5rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: clamp(1.4rem, 3vw, 1.8rem);
            color: var(--secondary);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            color: #333;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #283593 100%);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(90deg, #ff4081, #ff9100);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 8px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #bbdefb;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: white;
            text-decoration: underline;
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 2rem;
            background: white;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid var(--primary);
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(255,64,129,0.2);
        }
        .search-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(255,64,129,0.4);
        }
        main {
            padding: 3rem 0;
        }
        .article-content {
            background: white;
            border-radius: 20px;
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        .highlight {
            background: linear-gradient(120deg, #e3f2fd 0%, #fce4ec 100%);
            border-left: 6px solid var(--accent);
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 0 12px 12px 0;
        }
        .highlight strong {
            color: var(--primary);
            font-size: 1.2em;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .tip-card {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--secondary);
            transition: var(--transition);
        }
        .tip-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.15);
        }
        .tip-card i {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1rem;
        }
        .featured-image {
            width: 100%;
            max-width: 800px;
            margin: 3rem auto;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .featured-image:hover img {
            transform: scale(1.03);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 1rem;
            padding: 0 1rem;
        }
        .interactive-section {
            background: linear-gradient(135deg, #1a237e 0%, #4a148c 100%);
            color: white;
            padding: 3rem;
            border-radius: 20px;
            margin: 4rem 0;
        }
        .rating-form, .comment-form {
            background: rgba(255,255,255,0.1);
            padding: 2rem;
            border-radius: 12px;
            margin-top: 2rem;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffd700;
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-control {
            width: 100%;
            padding: 1rem;
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: 8px;
            background: rgba(255,255,255,0.1);
            color: white;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--secondary);
            background: rgba(255,255,255,0.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, var(--secondary), #ff6b6b);
            color: white;
            border: none;
            padding: 1rem 3rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255,64,129,0.3);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 4rem 0;
        }
        .web-link {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.15);
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: block;
            padding: 0.5rem;
            border-radius: 6px;
            transition: var(--transition);
        }
        .web-link a:hover {
            background: rgba(26,35,126,0.1);
            padding-left: 1.5rem;
        }
        footer {
            background: linear-gradient(135deg, #0d1238 0%, #1a237e 100%);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #bbdefb;
        }
        @media (max-width: 992px) {
            .article-content {
                padding: 2rem;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .interactive-section {
                padding: 2rem 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-btn {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
                padding-left: 1rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .highlight {
                padding: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }
        @media print {
            header, footer, .interactive-section,
            .search-container, .web-links {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }