* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Nirmala UI', 'Arial', sans-serif;
        }
        :root {
            --primary: #1a5fb4;
            --secondary: #e66100;
            --accent: #26a269;
            --dark: #1e1e1e;
            --light: #f8f8f8;
            --text: #2d2d2d;
            --gray: #777;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text);
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0 5%;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(45deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-desktop a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: white;
            padding: 1rem;
            border-top: 2px solid var(--light);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 0.8rem 1rem;
            text-decoration: none;
            color: var(--dark);
            border-bottom: 1px solid #eee;
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background: var(--light);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background: #f0f4f8;
            padding: 0.8rem 5%;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb span {
            color: var(--gray);
        }
        .main-container {
            flex: 1;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .content-area {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            color: var(--primary);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
        }
        h2 {
            color: var(--dark);
            font-size: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
        }
        h3 {
            color: var(--primary);
            font-size: 1.4rem;
            margin: 2rem 0 1rem;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--dark);
            background: linear-gradient(90deg, #e3f2fd, transparent);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 4px solid var(--accent);
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            hyphens: auto;
        }
        .highlight {
            background: linear-gradient(120deg, #ffecb3 0%, #ffecb3 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .stat-box {
            background: linear-gradient(135deg, var(--primary), #2d7bd4);
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
            box-shadow: 0 6px 20px rgba(26, 95, 180, 0.2);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            display: block;
            margin-bottom: 0.5rem;
        }
        .feature-img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.01);
        }
        .quote {
            font-style: italic;
            padding: 2rem;
            background: #f9f9f9;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 4px solid var(--secondary);
            font-size: 1.1rem;
        }
        .author {
            text-align: right;
            font-weight: 600;
            color: var(--primary);
            margin-top: 1rem;
        }
        .interactive-section {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            border: 2px dashed #ddd;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.1);
        }
        .btn {
            background: linear-gradient(45deg, var(--primary), var(--accent));
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(26, 95, 180, 0.3);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comments-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #eee;
        }
        .comment {
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            border-left: 3px solid var(--primary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .footer-links {
            background: var(--dark);
            padding: 3rem 5%;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 6px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-3px);
        }
        .web-link a {
            color: #ddd;
            text-decoration: none;
            font-size: 0.95rem;
            display: block;
            padding: 0.5rem 0;
        }
        .web-link a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer {
            background: #111;
            color: #aaa;
            padding: 2rem 5%;
            text-align: center;
            font-size: 0.9rem;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        @media (max-width: 1024px) {
            .main-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 0.8rem 0;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .main-container {
                padding: 0 1rem;
                margin: 1rem auto;
            }
            .content-area {
                padding: 1.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .footer-links {
                grid-template-columns: 1fr;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .delayed-1 { animation-delay: 0.2s; }
        .delayed-2 { animation-delay: 0.4s; }
        .delayed-3 { animation-delay: 0.6s; }