* {
            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%, #c3cfe2 100%);
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: #1e3a8a;
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            font-size: 2rem;
            font-weight: 700;
            color: #ffd700;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: #ffffff;
        }
        .nav-links {
            display: flex;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .breadcrumb {
            background: #e8eaf6;
            padding: 0.75rem 2rem;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #1e3a8a;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        article {
            padding: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3a8a;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
        }
        h2 {
            font-size: 2rem;
            color: #0d47a1;
            margin: 2.5rem 0 1rem;
            border-left: 5px solid #ffd700;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1565c0;
            margin: 1.5rem 0 0.75rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: #fff9c4;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 4px solid #ffd700;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }
        .image-container {
            text-align: center;
            margin: 2.5rem 0;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            max-width: 800px;
            margin: 0 auto;
        }
        .image-container figcaption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .feature-box {
            background: #f1f8ff;
            padding: 2rem;
            border-radius: 10px;
            border: 1px solid #bbdefb;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .feature-box h3 {
            color: #1e3a8a;
            margin-bottom: 1rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.75rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            background: linear-gradient(90deg, #1e3a8a, #0d47a1);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #0d47a1, #1e3a8a);
        }
        .long-tail-links {
            background: #e8eaf6;
            padding: 2rem;
            margin-top: 3rem;
            border-radius: 12px 12px 0 0;
        }
        .web-link {
            display: inline-block;
            margin: 0.5rem 1rem;
            padding: 0.5rem 1rem;
            background: white;
            border-radius: 6px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .web-link a {
            color: #1a73e8;
            font-weight: 500;
        }
        .web-link a:hover {
            color: #0d47a1;
            text-decoration: underline;
        }
        footer {
            background: #1e3a8a;
            color: white;
            text-align: center;
            padding: 2rem;
            border-radius: 0 0 12px 12px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            color: #bbdefb;
        }
        .footer-links a:hover {
            color: #ffd700;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1e3a8a;
                padding: 1rem 0;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .features {
                grid-template-columns: 1fr;
            }
            .web-link {
                display: block;
                margin: 0.5rem 0;
            }
        }
        .text-center {
            text-align: center;
        }
        .bold {
            font-weight: 700;
            color: #1e3a8a;
        }
        .spacing {
            margin: 2rem 0;
        }