* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0f1419;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #74c0fc;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(to right, #1a2332, #2d3748);
            padding: 1rem 0;
            border-bottom: 3px solid #4dabf7;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #4dabf7, #3bc9db);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: inherit;
        }
        .search-form {
            display: flex;
            flex-grow: 1;
            max-width: 400px;
            margin: 0 30px;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 18px;
            border: 2px solid #4dabf7;
            border-radius: 30px 0 0 30px;
            background: #1e293b;
            color: #fff;
            font-size: 1rem;
        }
        .search-btn {
            background: #4dabf7;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #339af0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-nav {
            background-color: #1e293b;
            margin-top: 1rem;
            border-radius: 8px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-list li {
            margin: 0;
        }
        .nav-list a {
            display: block;
            padding: 16px 22px;
            color: #cbd5e1;
            font-weight: 600;
            border-right: 1px solid #2d3748;
        }
        .nav-list a:hover {
            background-color: #4dabf7;
            color: white;
            text-decoration: none;
        }
        .nav-list li:last-child a {
            border-right: none;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #cbd5e1;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background: #1a2332;
            border-radius: 12px;
            padding: 35px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }
        .article h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: #4dabf7;
            line-height: 1.2;
            border-left: 6px solid #3bc9db;
            padding-left: 20px;
        }
        .article h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            color: #3bc9db;
            padding-bottom: 10px;
            border-bottom: 2px solid #2d3748;
        }
        .article h3 {
            font-size: 1.6rem;
            margin: 30px 0 15px;
            color: #74c0fc;
        }
        .article h4 {
            font-size: 1.3rem;
            margin: 25px 0 12px;
            color: #a5d8ff;
        }
        .article p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article emoji {
            font-size: 1.2em;
            margin-right: 8px;
        }
        .highlight {
            background: rgba(77, 171, 247, 0.15);
            border-left: 5px solid #4dabf7;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-img {
            width: 100%;
            margin: 30px auto;
            border-radius: 10px;
            overflow: hidden;
            border: 3px solid #4dabf7;
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #94a3b8;
            margin-top: 40px;
            padding-top: 15px;
            border-top: 1px dashed #4dabf7;
        }
        .sidebar {
            background: #1a2332;
            border-radius: 12px;
            padding: 25px;
            align-self: start;
        }
        .sidebar h3 {
            color: #3bc9db;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #2d3748;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #2d3748;
        }
        .related-links a {
            display: flex;
            align-items: center;
            color: #cbd5e1;
        }
        .related-links a:hover {
            color: #4dabf7;
        }
        .related-links i {
            margin-right: 10px;
            color: #4dabf7;
        }
        .comment-section, .rating-section {
            background: #1a2332;
            border-radius: 12px;
            padding: 30px;
            margin-top: 40px;
        }
        .comment-section h2, .rating-section h2 {
            color: #3bc9db;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #cbd5e1;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 14px;
            background: #2d3748;
            border: 1px solid #4a5568;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
        }
        .form-control:focus {
            outline: none;
            border-color: #4dabf7;
        }
        .submit-btn {
            background: linear-gradient(to right, #4dabf7, #3bc9db);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #4a5568;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star:hover,
        .star.active {
            color: #ffd43b;
        }
        .site-footer {
            background: #1a2332;
            padding: 40px 0 20px;
            margin-top: 60px;
            border-top: 3px solid #4dabf7;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #3bc9db;
            margin-bottom: 20px;
        }
        friend-link {
            display: block;
            margin-bottom: 12px;
            color: #cbd5e1;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #2d3748;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: stretch;
            }
            .search-form {
                max-width: 100%;
                margin: 20px 0;
                order: 3;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .main-nav {
                display: none;
                margin-top: 20px;
            }
            .main-nav.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
            }
            .nav-list a {
                border-right: none;
                border-bottom: 1px solid #2d3748;
            }
            .article h1 {
                font-size: 2.2rem;
            }
            .article h2 {
                font-size: 1.8rem;
            }
        }