* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            padding-bottom: 20px;
        }
        a {
            text-decoration: none;
            color: #2a9d8f;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #264653;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }
        header {
            background: linear-gradient(90deg, #264653 0%, #2a9d8f 100%);
            color: white;
            padding: 1.5rem 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 a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #e9c46a;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: #f4a261;
        }
        .logo i {
            font-size: 2.5rem;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s ease;
        }
        nav a:hover {
            background: rgba(255,255,255,0.2);
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e9f5f3;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #2a9d8f;
        }
        main {
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            padding: 2.5rem;
            margin-top: 1rem;
        }
        article h1 {
            font-size: 2.8rem;
            color: #264653;
            margin-bottom: 1.5rem;
            border-bottom: 3px solid #e9c46a;
            padding-bottom: 0.5rem;
        }
        article h2 {
            font-size: 2.2rem;
            color: #2a9d8f;
            margin: 2.5rem 0 1rem;
            padding-left: 10px;
            border-left: 5px solid #f4a261;
        }
        article h3 {
            font-size: 1.8rem;
            color: #e76f51;
            margin: 2rem 0 1rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fff9e6;
            border-left: 4px solid #e9c46a;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .feature-img {
            width: 80%;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0,0,0,0.15);
        }
        .feature-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background: #f8f9fa;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .feature-box {
            background: #f8f9fa;
            border: 2px solid #2a9d8f;
            border-radius: 10px;
            padding: 2rem;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(42, 157, 143, 0.2);
        }
        .feature-box h3 {
            color: #264653;
            margin-bottom: 1rem;
        }
        .feature-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .feature-box input, .feature-box textarea, .feature-box select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            width: 100%;
        }
        .feature-box button {
            background: linear-gradient(to right, #2a9d8f, #264653);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .feature-box button:hover {
            background: linear-gradient(to right, #264653, #2a9d8f);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffc107;
        }
        .web-links {
            background: #264653;
            color: white;
            padding: 2.5rem 0;
            margin-top: 3rem;
            border-radius: 12px 12px 0 0;
        }
        .web-links h3 {
            text-align: center;
            margin-bottom: 2rem;
            color: #e9c46a;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: rgba(255,255,255,0.1);
            padding: 1.2rem;
            border-radius: 8px;
            transition: background 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .web-link a {
            color: #a2d2ff;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: #ffafcc;
        }
        footer {
            text-align: center;
            padding: 2rem;
            background: #1d3557;
            color: white;
            border-radius: 0 0 12px 12px;
        }
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #bde0fe;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #2a9d8f;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 6px 12px rgba(0,0,0,0.15);
            }
            nav ul.show {
                display: flex;
            }
            nav li {
                margin: 0.5rem 0;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            .feature-img {
                width: 100%;
            }
        }