* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #f8f9fa;
            max-width: 100%;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #000428 0%, #004e92 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #00ff88;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, #00ff88, #00ccff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 2rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: color 0.3s, transform 0.3s;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a:hover {
            color: #00ff88;
            transform: translateY(-2px);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #00ff88;
            transition: width 0.3s;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .burger {
            display: none;
            cursor: pointer;
            font-size: 1.8rem;
            color: white;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: #004e92;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-top: 1rem;
        }
        article {
            padding: 0 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #000428;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #00ff88;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #004e92;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #00ccff;
        }
        h3 {
            font-size: 1.6rem;
            color: #0066cc;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #0088ff;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, #e3f2fd, #bbdefb);
            padding: 1.5rem;
            border-left: 5px solid #004e92;
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            display: block;
            margin: 2rem auto;
            transition: transform 0.5s;
        }
        .content-img:hover {
            transform: scale(1.02);
        }
        .update-time {
            font-style: italic;
            color: #666;
            background: #f1f8ff;
            padding: 0.8rem;
            border-radius: 5px;
            margin: 2rem 0;
            text-align: center;
            border: 1px dashed #004e92;
        }
        .links-section {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .links-section li {
            background: white;
            padding: 1rem;
            border-radius: 6px;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .links-section li:hover {
            transform: translateY(-5px);
            box-shadow: 0 7px 15px rgba(0,0,0,0.1);
        }
        .links-section a {
            color: #004e92;
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .links-section a:hover {
            color: #00ff88;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .card {
            background: white;
            border-radius: 10px;
            padding: 1.8rem;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.15);
        }
        .card h3 {
            color: #000428;
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
        }
        input, textarea, select {
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }
        button {
            background: linear-gradient(90deg, #004e92, #000428);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            background: linear-gradient(90deg, #0066cc, #004e92);
            transform: translateY(-3px);
        }
        .stars {
            display: flex;
            justify-content: center;
            margin: 1rem 0;
        }
        .stars i {
            color: #ffc107;
            font-size: 1.8rem;
            margin: 0 0.2rem;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .stars i:hover {
            transform: scale(1.3);
        }
        footer {
            background: #000428;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #00ff88;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section ul li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #bbdefb;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: #00ff88;
        }
        friend-link {
            display: inline-block;
            background: #004e92;
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            margin: 0.5rem;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: #00ff88;
            color: #000428;
            transform: scale(1.05);
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .burger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: rgba(0, 4, 40, 0.98);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 2rem;
                transition: left 0.5s;
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                margin: 1.5rem 0;
            }
            .nav-links a {
                font-size: 1.2rem;
            }
            article {
                padding: 0 1rem;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .my-logo { font-size: 1.6rem; }
        }