* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1419;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 15% 50%, rgba(28, 58, 83, 0.3) 0%, transparent 20%), radial-gradient(circle at 85% 30%, rgba(65, 28, 83, 0.2) 0%, transparent 20%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #74c0fc;
            text-shadow: 0 0 8px rgba(116, 192, 252, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 6px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: rgba(15, 25, 35, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #2a3a4a;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, #ff6b6b, #4dabf7);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            animation: logo-pulse 1.5s infinite;
        }
        @keyframes logo-pulse {
            0% { opacity: 1; }
            50% { opacity: 0.8; }
            100% { opacity: 1; }
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: #b0b7c3;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #74c0fc;
            border-bottom-color: #74c0fc;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #b0b7c3;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #8a9ba8;
            background: rgba(20, 30, 40, 0.6);
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: #8a9ba8;
        }
        .breadcrumb a:hover {
            color: #74c0fc;
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        .search-section {
            background: linear-gradient(135deg, rgba(40, 60, 80, 0.8), rgba(60, 30, 60, 0.8));
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            text-align: center;
            border: 1px solid #3a4a5a;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid #4dabf7;
            border-radius: 50px 0 0 50px;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1rem;
            outline: none;
        }
        .search-input::placeholder {
            color: #aaa;
        }
        .search-btn {
            background: linear-gradient(90deg, #4dabf7, #3d8bcf);
            color: white;
            border: none;
            padding: 0 30px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: linear-gradient(90deg, #3d8bcf, #2d6baf);
        }
        main {
            flex: 1;
            padding-bottom: 40px;
        }
        .article-header {
            margin-bottom: 40px;
            text-align: center;
            padding: 30px;
            background: rgba(25, 35, 50, 0.7);
            border-radius: 12px;
            border-left: 5px solid #ff6b6b;
        }
        h1 {
            font-size: 2.8rem;
            color: #ffffff;
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
            line-height: 1.2;
        }
        .article-meta {
            color: #8a9ba8;
            font-size: 0.95rem;
            margin-top: 15px;
        }
        .article-meta i {
            margin-right: 8px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: rgba(20, 30, 40, 0.7);
            padding: 35px;
            border-radius: 12px;
            border: 1px solid #2a3a4a;
        }
        .sidebar {
            background: rgba(20, 30, 40, 0.7);
            padding: 25px;
            border-radius: 12px;
            border: 1px solid #2a3a4a;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h2 {
            font-size: 2.2rem;
            color: #4dabf7;
            margin-top: 50px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #3a4a5a;
        }
        h3 {
            font-size: 1.7rem;
            color: #ffa94d;
            margin-top: 35px;
            margin-bottom: 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #69db7c;
            margin-top: 25px;
            margin-bottom: 12px;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #c5e0ff;
            font-weight: 300;
            margin-bottom: 30px;
            padding: 20px;
            background: rgba(40, 60, 80, 0.3);
            border-radius: 8px;
            border-left: 4px solid #4dabf7;
        }
        .highlight-box {
            background: rgba(255, 107, 107, 0.1);
            border-left: 5px solid #ff6b6b;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background: rgba(105, 219, 124, 0.1);
            border-left: 5px solid #69db7c;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        em {
            color: #ffd8a8;
            font-style: italic;
        }
        strong {
            color: #ffc078;
            font-weight: 700;
        }
        .related-links {
            margin: 30px 0;
            padding: 20px;
            background: rgba(60, 80, 100, 0.3);
            border-radius: 10px;
        }
        .related-links h3 {
            color: #b197fc;
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin-top: 15px;
        }
        .related-links li {
            padding: 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: transform 0.3s, background 0.3s;
        }
        .related-links li:hover {
            transform: translateY(-3px);
            background: rgba(255, 255, 255, 0.1);
        }
        .featured-image {
            margin: 30px auto;
            max-width: 800px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 2px solid #4dabf7;
            overflow: hidden;
        }
        .featured-image img {
            transition: transform 0.5s;
            width: 100%;
        }
        .featured-image:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #aaa;
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .user-interaction {
            margin-top: 60px;
            background: rgba(25, 35, 50, 0.8);
            padding: 30px;
            border-radius: 12px;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        .comment-form, .rating-form {
            background: rgba(40, 50, 70, 0.5);
            padding: 25px;
            border-radius: 10px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            color: #c5e0ff;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid #4dabf7;
            border-radius: 6px;
            color: white;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s, box-shadow 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #74c0fc;
            box-shadow: 0 0 0 3px rgba(116, 192, 252, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(90deg, #69db7c, #51cf66);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: background 0.3s, transform 0.2s;
            display: inline-block;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #51cf66, #40c057);
            transform: translateY(-2px);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star.active,
        .star:hover {
            color: #ffd43b;
        }
        .site-footer {
            background: rgba(10, 18, 26, 0.98);
            border-top: 1px solid #2a3a4a;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #74c0fc;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        friend-link {
            display: block;
            padding: 10px 15px;
            background: rgba(255, 255, 255, 0.05);
            margin-bottom: 10px;
            border-radius: 5px;
            border-left: 3px solid #ff6b6b;
            transition: background 0.3s, transform 0.3s;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a3a4a;
            color: #8a9ba8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(15, 25, 35, 0.98);
                padding: 20px;
                border-top: 1px solid #2a3a4a;
            }
            .main-nav.active ul {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .content-grid {
                gap: 25px;
            }
            .article-content, .sidebar {
                padding: 20px;
            }
        }