* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        :root {
            --primary: #0056A7;
            --secondary: #E03C31;
            --accent: #F9A01B;
            --dark: #1A2B3C;
            --light: #F5F7FA;
            --gray: #6C757D;
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary), #003A75);
            color: white;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent);
            transform: scale(1.02);
        }
        .my-logo i {
            color: var(--accent);
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background-color: var(--accent);
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #d18c15;
        }
        .nav-desktop {
            display: flex;
            background-color: rgba(255, 255, 255, 0.08);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            padding: 18px 24px;
            font-weight: 600;
            transition: var(--transition);
            position: relative;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent);
        }
        .nav-desktop a:hover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20%;
            width: 60%;
            height: 3px;
            background-color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--primary);
            padding: 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease-out;
        }
        .nav-mobile.active {
            display: flex;
            max-height: 500px;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 18px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            padding-left: 30px;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--gray);
            background-color: #f0f4f8;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }
        .article-header {
            margin-bottom: 40px;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 25px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 15px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 10px;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 10px;
            margin: 30px 0;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        .hero-image:hover {
            transform: scale(1.005);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        h2 {
            font-size: 2rem;
            color: var(--dark);
            margin: 50px 0 20px 0;
            padding-bottom: 10px;
            border-bottom: 2px solid #eaeaea;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary);
            margin: 35px 0 15px 0;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--secondary);
            margin: 25px 0 10px 0;
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: var(--dark);
            font-weight: 500;
            background: #f8f9fa;
            padding: 25px;
            border-left: 5px solid var(--accent);
            border-radius: 0 10px 10px 0;
            margin-bottom: 40px;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 25px;
            border-radius: 10px;
            border-left: 5px solid var(--accent);
            margin: 30px 0;
        }
        .highlight strong {
            color: var(--secondary);
        }
        .content-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 1.5em;
        }
        li {
            margin-bottom: 0.8em;
        }
        .data-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .data-card {
            background: linear-gradient(145deg, #f0f7ff, #ffffff);
            border-radius: 10px;
            padding: 25px;
            box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.05), -5px -5px 15px #ffffff;
            text-align: center;
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }
        .data-card:hover {
            transform: translateY(-5px);
            box-shadow: 8px 8px 20px rgba(0, 0, 0, 0.08);
        }
        .data-card h4 {
            margin-top: 0;
            color: var(--primary);
        }
        .data-value {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--secondary);
            line-height: 1;
            margin: 15px 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.3rem;
            color: var(--gray);
            text-align: center;
            padding: 30px;
            border-top: 2px solid #eee;
            border-bottom: 2px solid #eee;
            margin: 40px 0;
            position: relative;
        }
        .quote::before,
        .quote::after {
            content: '"';
            font-size: 4rem;
            color: var(--accent);
            opacity: 0.3;
            position: absolute;
        }
        .quote::before {
            top: 10px;
            left: 20px;
        }
        .quote::after {
            bottom: -20px;
            right: 20px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            padding-bottom: 15px;
            border-bottom: 2px solid #eee;
            color: var(--dark);
        }
        .link-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .link-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .link-list a {
            text-decoration: none;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .link-list a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .link-list i {
            color: var(--accent);
        }
        .interactive-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 14px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 86, 167, 0.2);
        }
        .rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: var(--accent);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), #0077cc);
            color: white;
            border: none;
            border-radius: 8px;
            padding: 16px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            text-decoration: none;
        }
        .btn:hover {
            background: linear-gradient(to right, #004a99, var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 7px 15px rgba(0, 86, 167, 0.3);
        }
        .btn-accent {
            background: linear-gradient(to right, var(--accent), #f9b635);
        }
        .btn-accent:hover {
            background: linear-gradient(to right, #d18c15, var(--accent));
        }
        .site-footer {
            background-color: var(--dark);
            color: #ccc;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: white;
            margin-bottom: 20px;
            display: block;
        }
        .footer-about {
            font-size: 0.95rem;
            line-height: 1.6;
        }
        friend-link {
            display: block;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        friend-link h4 {
            color: white;
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        friend-link a {
            color: #aaa;
            text-decoration: none;
            margin-right: 15px;
            margin-bottom: 10px;
            display: inline-block;
            transition: var(--transition);
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #999;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                flex: 1 1 100%;
                margin-top: 15px;
            }
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .article-content {
                padding: 25px;
            }
            .hero-image {
                height: 250px;
            }
        }
        @media (max-width: 480px) {
            .data-box {
                grid-template-columns: 1fr;
            }
        }