* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0a1a2d;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4da6ff;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #80c1ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .highlight {
            background: linear-gradient(90deg, #ffcc00 0%, #ff9900 100%);
            color: #0a1a2d;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: bold;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #0066cc, #004d99);
            color: white;
            padding: 12px 24px;
            border-radius: 30px;
            border: none;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(90deg, #004d99, #003366);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 102, 204, 0.4);
            text-decoration: none;
        }
        .site-header {
            background: rgba(10, 26, 45, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #1a3a5f;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #00ccff, #0066ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
        }
        .my-logo a { color: transparent; }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: #1a3a5f;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #4da6ff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #0a1a2d;
            border-top: 2px solid #1a3a5f;
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            padding: 15px;
            border-bottom: 1px solid #1a3a5f;
            font-weight: 600;
        }
        .nav-mobile a:last-child { border-bottom: none; }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #8fa3bf;
            background-color: #0f2438;
        }
        .breadcrumb a { color: #8fa3bf; }
        .breadcrumb span { margin: 0 8px; }
        main {
            padding: 40px 0;
            background: linear-gradient(180deg, #0a1a2d 0%, #0f2438 100%);
        }
        article {
            background: rgba(15, 36, 56, 0.7);
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            article { padding: 25px; }
        }
        h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            color: #ffffff;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0, 102, 204, 0.3);
            border-bottom: 3px solid #0066cc;
            padding-bottom: 20px;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.5rem; }
        }
        h2 {
            font-size: 2.2rem;
            margin: 2.5rem 0 1rem;
            color: #4da6ff;
            padding-left: 10px;
            border-left: 5px solid #ff9900;
        }
        h3 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            color: #80c1ff;
        }
        h4 {
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
            color: #a6d0ff;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #b3d9ff;
            line-height: 1.8;
        }
        .content-img {
            margin: 2.5rem auto;
            max-width: 800px;
            border: 3px solid #1a3a5f;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
        }
        blockquote {
            border-left: 5px solid #ff9900;
            padding-left: 25px;
            margin: 2rem 0;
            font-style: italic;
            color: #cccccc;
            background: rgba(255, 153, 0, 0.05);
            padding-top: 15px;
            padding-bottom: 15px;
            border-radius: 0 8px 8px 0;
        }
        .interactive-section {
            background: rgba(26, 58, 95, 0.5);
            border-radius: 10px;
            padding: 25px;
            margin: 3rem 0;
            border: 1px solid #2d4d73;
        }
        .interactive-section h3 { margin-top: 0; }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid #2d4d73;
            background-color: #0a1a2d;
            color: #e0e0e0;
            font-size: 1rem;
        }
        .form-control:focus {
            outline: none;
            border-color: #4da6ff;
            box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.2);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 10px 0;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .comment-list {
            margin-top: 2rem;
        }
        .comment-item {
            background: rgba(10, 26, 45, 0.7);
            border-radius: 8px;
            padding: 15px;
            margin-bottom: 15px;
            border-left: 4px solid #0066cc;
        }
        .comment-author {
            font-weight: bold;
            color: #4da6ff;
        }
        .comment-date {
            font-size: 0.9rem;
            color: #8fa3bf;
            margin-left: 10px;
        }
        .site-footer {
            background-color: #070f1a;
            color: #8fa3bf;
            padding: 50px 0 20px;
            border-top: 2px solid #1a3a5f;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: #4da6ff;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        friend-link {
            display: block;
            padding: 12px 15px;
            background: rgba(26, 58, 95, 0.5);
            border-radius: 5px;
            margin-bottom: 10px;
            border: 1px solid #2d4d73;
            transition: all 0.3s ease;
        }
        friend-link:hover {
            background: rgba(26, 58, 95, 0.8);
            border-color: #4da6ff;
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #1a3a5f;
            font-size: 0.9rem;
            color: #6d7f99;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 2rem 0;
        }
        .card {
            background: rgba(15, 36, 56, 0.8);
            border-radius: 10px;
            padding: 25px;
            border: 1px solid #2d4d73;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6);
            border-color: #4da6ff;
        }