* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2a5caa; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #e63946, #d62839);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.2);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
            background: linear-gradient(90deg, #d62839, #c1121f);
        }
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #2a5caa, #1d3557);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .logo a:hover { opacity: 0.9; }
        .nav-desktop { display: flex; gap: 30px; }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.05rem;
            position: relative;
            padding: 5px 0;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #e63946;
            transition: width 0.3s ease;
            border-radius: 2px;
        }
        .nav-desktop a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 10px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: #2a5caa;
            border-radius: 2px;
            transition: 0.3s;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: white;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-top: 1px solid #eee;
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            padding: 15px 10px;
            border-bottom: 1px solid #f0f0f0;
            font-weight: 600;
        }
        .nav-mobile a:last-child { border-bottom: none; }
        .breadcrumb {
            padding: 15px 0;
            background: #f8f9fa;
            border-bottom: 1px solid #eaeaea;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: #888;
        }
        .main-content {
            flex: 1;
            padding: 40px 0;
        }
        article {
            background: white;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1d3557;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid #e63946;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #2a5caa;
            margin: 35px 0 20px;
            padding-left: 15px;
            border-left: 5px solid #457b9d;
        }
        h3 {
            font-size: 1.5rem;
            color: #457b9d;
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(230, 57, 70, 0.1), rgba(42, 92, 170, 0.1));
            border-left: 4px solid #e63946;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 15px;
            overflow: hidden;
            margin: 30px 0;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        .interactive-section {
            background: #f8f9fa;
            border-radius: 15px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid #eaeaea;
        }
        .interactive-section h3 { margin-top: 0; }
        form { display: flex; flex-wrap: wrap; gap: 20px; }
        .form-group { flex: 1 1 300px; }
        label { display: block; margin-bottom: 8px; font-weight: 600; }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #2a5caa;
            outline: none;
        }
        textarea { min-height: 150px; resize: vertical; }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
            margin-bottom: 20px;
        }
        .star-rating i:hover { transform: scale(1.2); }
        .footer-links {
            background: #1d3557;
            padding: 40px 0;
            margin-top: 40px;
        }
        .footer-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 25px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
            transition: transform 0.3s ease, background 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            color: #a8dadc;
            font-size: 1.1rem;
            display: block;
        }
        .web-link a:hover { color: white; }
        .site-footer {
            background: #0d1b2a;
            color: #e0e1dd;
            padding: 40px 0;
            text-align: center;
        }
        .site-footer p { margin-bottom: 10px; font-size: 1rem; }
        .copyright { font-size: 0.9rem; color: #8d99ae; }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 30px; }
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: flex; }
            .header-content { padding: 0 10px; }
            .main-content { padding: 20px 0; }
            article { padding: 25px; border-radius: 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .interactive-section { padding: 25px; }
            .footer-links .container { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            article { padding: 20px; }
            h1 { font-size: 1.8rem; }
            .btn { padding: 10px 22px; }
            .star-rating { font-size: 1.5rem; }
        }