* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #2c5aa0;
            transition: color 0.3s;
        }
        a:hover {
            color: #e63946;
        }
        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, #1d3557 0%, #457b9d 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(90deg, #ffddd2, #e9c46a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo a {
            background: none;
            -webkit-text-fill-color: initial;
            color: inherit;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 2rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            color: #6c757d;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb span {
            margin: 0 5px;
        }
        .search-container {
            margin: 2rem auto;
            max-width: 800px;
            padding: 0 20px;
        }
        .search-box {
            display: flex;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-box input {
            flex: 1;
            padding: 1.2rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-box button {
            background: #e63946;
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #d62839;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: 0 8px 30px rgba(0,0,0,0.05);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1d3557;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: #457b9d;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffddd2;
        }
        h3 {
            font-size: 1.7rem;
            color: #e76f51;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            background: #f1faee;
            padding: 1.5rem;
            border-left: 5px solid #a8dadc;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: #ffddd2;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .image-container {
            margin: 2.5rem auto;
            text-align: center;
        }
        .image-container img {
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            max-width: 900px;
            margin: 0 auto;
        }
        .image-caption {
            font-style: italic;
            color: #6c757d;
            margin-top: 0.8rem;
            font-size: 1rem;
        }
        .quote {
            background: linear-gradient(90deg, #f8f9fa, #e9ecef);
            padding: 2rem;
            border-left: 6px solid #e63946;
            margin: 2.5rem 0;
            font-size: 1.3rem;
            color: #333;
            border-radius: 0 12px 12px 0;
        }
        .quote cite {
            display: block;
            margin-top: 1rem;
            font-weight: 600;
            color: #555;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .tip-card {
            background: #a8dadc;
            padding: 1.8rem;
            border-radius: 10px;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .tip-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .tip-card h4 {
            color: #1d3557;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }
        .user-interaction {
            background: #f8f9fa;
            padding: 3rem;
            border-radius: 12px;
            margin-top: 3rem;
            border: 1px solid #dee2e6;
        }
        .interaction-title {
            text-align: center;
            color: #1d3557;
            margin-bottom: 2rem;
        }
        .rating-form, .comment-form {
            max-width: 700px;
            margin: 0 auto 2.5rem;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            margin: 1rem 0;
            font-size: 2rem;
            color: #ffc107;
        }
        .rating-stars i {
            cursor: pointer;
            margin: 0 5px;
            transition: color 0.2s;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #457b9d;
            outline: none;
        }
        button[type="submit"] {
            background: #1d3557;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        button[type="submit"]:hover {
            background: #14213d;
        }
        .footer-links {
            background: #1d3557;
            padding: 3rem 20px;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1.5rem;
            padding: 0.8rem 1.5rem;
            background: rgba(255,255,255,0.1);
            border-radius: 30px;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .web-link a {
            color: #f1faee;
            font-weight: 500;
        }
        footer {
            background: #14213d;
            color: #adb5bd;
            text-align: center;
            padding: 2.5rem 20px;
            font-size: 1rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid #495057;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.5rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1d3557;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem 0;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 0;
                text-align: center;
                padding: 0.8rem 0;
            }
            .hamburger { display: block; }
            .tips-grid { grid-template-columns: 1fr; }
            .user-interaction { padding: 2rem; }
            .web-link { display: block; margin: 1rem auto; text-align: center; max-width: 300px; }
        }