* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1a20;
            color: #e0e0e0;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #4da6ff;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #80c1ff;
            text-shadow: 0 0 8px rgba(77, 166, 255, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .py-1 { padding-top: 1rem; padding-bottom: 1rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .py-3 { padding-top: 3rem; padding-bottom: 3rem; }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight {
            background: linear-gradient(90deg, transparent 0%, rgba(255,215,0,0.15) 50%, transparent 100%);
            padding: 0.2rem 0.5rem;
            border-left: 3px solid #ffd700;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2a3a 0%, #0d1822 100%);
            border-bottom: 2px solid #2a4a6a;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, #ff9900, #ffd700);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            padding: 10px 0;
        }
        .my-logo:hover {
            animation: logo-glow 1.5s ease-in-out infinite alternate;
        }
        @keyframes logo-glow {
            from { filter: drop-shadow(0 0 5px rgba(255, 153, 0, 0.7)); }
            to { filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.9)); }
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .main-nav a {
            color: #b8d4f0;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(42, 74, 106, 0.7);
            color: #ffffff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ffd700;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #15202b;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #8cb4d9;
        }
        .breadcrumb span {
            color: #cccccc;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: #666;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .article-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: #15202b;
            border-radius: 10px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #2a4a6a;
        }
        article h1 {
            font-size: 2.8rem;
            color: #ffd700;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 2px solid #3a5a7a;
            padding-bottom: 1rem;
        }
        article h2 {
            font-size: 2rem;
            color: #4da6ff;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #3a5a7a;
        }
        article h3 {
            font-size: 1.6rem;
            color: #80c1ff;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        article h4 {
            font-size: 1.3rem;
            color: #a3d1ff;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        article ul, article ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        article li {
            margin-bottom: 0.5rem;
        }
        .article-img {
            margin: 2rem auto;
            border-radius: 8px;
            overflow: hidden;
            border: 2px solid #3a5a7a;
            max-width: 800px;
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            background-color: #1c2b3a;
            color: #b0b0b0;
            font-size: 0.9rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: #15202b;
            border-radius: 10px;
            padding: 1.5rem;
            border: 1px solid #2a4a6a;
        }
        .sidebar-widget h3 {
            color: #ff9900;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar-widget h3 i {
            color: #ffd700;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #b8d4f0;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            background-color: #1c2b3a;
            border: 1px solid #3a5a7a;
            border-radius: 6px;
            color: #e0e0e0;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #4da6ff;
            box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.2);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #444;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .rating-stars .star {
            transition: color 0.2s, transform 0.2s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffd700;
            transform: scale(1.1);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #2a75bb, #3a8cff);
            color: white;
            padding: 0.8rem 1.8rem;
            border: none;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to right, #3a8cff, #4da6ff);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(58, 140, 255, 0.4);
        }
        .btn-block {
            width: 100%;
        }
        .site-footer {
            background: linear-gradient(135deg, #0d1822 0%, #091019 100%);
            border-top: 2px solid #2a4a6a;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ff9900;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        friend-link {
            display: inline-block;
            background-color: #1c2b3a;
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 4px;
            border: 1px solid #3a5a7a;
            transition: all 0.3s;
        }
        friend-link:hover {
            background-color: #2a3a4a;
            border-color: #4da6ff;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a4a6a;
            color: #8a9ba8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .main-nav {
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid #2a4a6a;
            }
            article {
                padding: 1.5rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
        }