* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f6f8;
            color: #1a1a2e;
            line-height: 1.8;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #1a1a2e, #16213e);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #00d2ff;
            text-decoration: none;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #ffd700;
            font-size: 2.2rem;
        }
        .my-logo .domain {
            font-size: 0.85rem;
            color: #aaa;
            font-weight: 400;
            display: block;
            line-height: 1;
            letter-spacing: 0;
        }
        .main-nav {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .main-nav a {
            color: #e0e0e0;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 6px;
            transition: all 0.3s;
            font-size: 0.95rem;
        }
        .main-nav a:hover {
            background: #00d2ff;
            color: #1a1a2e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #fff;
            border-bottom: 1px solid #e0e0e0;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #0077b6;
            text-decoration: none;
        }
        .breadcrumb span {
            color: #666;
            margin: 0 8px;
        }
        .hero {
            background: linear-gradient(135deg, #1a1a2e, #0f3460, #16213e);
            color: #fff;
            padding: 60px 0;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            max-width: 900px;
            margin: 0 auto 20px;
            line-height: 1.3;
        }
        .hero p {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.1rem;
            opacity: 0.9;
            color: #ddd;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-content {
            background: #fff;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }
        .main-content h2 {
            font-size: 2rem;
            color: #1a1a2e;
            margin: 40px 0 20px;
            padding-bottom: 12px;
            border-bottom: 3px solid #00d2ff;
            position: relative;
        }
        .main-content h3 {
            font-size: 1.5rem;
            color: #0f3460;
            margin: 30px 0 15px;
        }
        .main-content h4 {
            font-size: 1.2rem;
            color: #333;
            margin: 20px 0 10px;
        }
        .main-content p {
            margin-bottom: 18px;
            color: #333;
            text-align: justify;
        }
        .main-content ul,
        .main-content ol {
            margin: 15px 0 20px 30px;
            color: #333;
        }
        .main-content li {
            margin-bottom: 8px;
        }
        .main-content img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 25px 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        .highlight-box {
            background: #f0f8ff;
            border-left: 4px solid #00d2ff;
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .info-box {
            background: #fff9e6;
            border-left: 4px solid #ffd700;
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .table-responsive {
            overflow-x: auto;
        }
        .table-responsive table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }
        .table-responsive th,
        .table-responsive td {
            border: 1px solid #e0e0e0;
            padding: 12px;
            text-align: left;
        }
        .table-responsive th {
            background: #0f3460;
            color: #fff;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .widget {
            background: #fff;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
        }
        .widget h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: #0f3460;
            border-bottom: 2px solid #00d2ff;
            padding-bottom: 8px;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input:focus {
            border-color: #00d2ff;
        }
        .search-form button {
            background: #00d2ff;
            color: #1a1a2e;
            border: none;
            border-radius: 8px;
            padding: 10px 16px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #00b8e6;
        }
        .score-form .stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            margin: 10px 0;
        }
        .score-form .stars input {
            display: none;
        }
        .score-form .stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .score-form .stars input:checked~label,
        .score-form .stars label:hover,
        .score-form .stars label:hover~label {
            color: #ffd700;
        }
        .score-form button {
            background: #0f3460;
            color: #fff;
            border: none;
            padding: 10px 20px;
            border-radius: 8px;
            cursor: pointer;
            width: 100%;
            font-size: 1rem;
            transition: background 0.3s;
            margin-top: 10px;
        }
        .score-form button:hover {
            background: #1a4a7a;
        }
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            margin-bottom: 12px;
            outline: none;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .comment-form textarea:focus {
            border-color: #00d2ff;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 0.95rem;
            margin-bottom: 12px;
            outline: none;
        }
        .comment-form button {
            background: #00d2ff;
            color: #1a1a2e;
            border: none;
            padding: 10px 20px;
            border-radius: 8px;
            cursor: pointer;
            width: 100%;
            font-size: 1rem;
            font-weight: 600;
            transition: background 0.3s;
        }
        .comment-form button:hover {
            background: #00b8e6;
        }
        .related-links {
            list-style: none;
            padding: 0;
        }
        .related-links li {
            margin-bottom: 10px;
        }
        .related-links a {
            color: #0077b6;
            text-decoration: none;
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color 0.3s;
        }
        .related-links a:hover {
            color: #00d2ff;
        }
        .site-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .footer-col h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        .footer-col a {
            color: #aaa;
            text-decoration: none;
            display: block;
            margin-bottom: 8px;
            transition: color 0.3s;
        }
        .footer-col a:hover {
            color: #00d2ff;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid #333;
            margin-top: 30px;
            font-size: 0.85rem;
            color: #888;
        }
        friend-link {
            display: block;
            background: #1a1a2e;
            color: #aaa;
            padding: 20px 0;
            text-align: center;
            border-top: 1px solid #333;
        }
        friend-link a {
            color: #00d2ff;
            text-decoration: none;
            margin: 0 10px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 20px 0;
                background: #1a1a2e;
            }
            .main-nav.active {
                display: flex;
            }
            .main-nav a {
                padding: 12px 15px;
                border-bottom: 1px solid #333;
            }
            .hamburger {
                display: block;
            }
            .hero {
                padding: 40px 0;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .main-content {
                padding: 20px;
            }
            .main-content h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .main-content {
                padding: 15px;
                border-radius: 8px;
            }
        }
        .last-updated {
            background: #f0f8ff;
            padding: 8px 16px;
            border-radius: 20px;
            display: inline-block;
            font-size: 0.85rem;
            color: #0f3460;
            margin-bottom: 20px;
        }
        .post-meta {
            display: flex;
            gap: 20px;
            margin-bottom: 25px;
            font-size: 0.9rem;
            color: #666;
            flex-wrap: wrap;
        }
        .post-meta i {
            margin-right: 5px;
        }
        .toc {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 20px 25px;
            margin: 20px 0 30px;
        }
        .toc h4 {
            margin-bottom: 10px;
        }
        .toc ul {
            list-style: none;
            padding-left: 0;
        }
        .toc li {
            margin-bottom: 6px;
        }
        .toc a {
            color: #0077b6;
            text-decoration: none;
        }
        .toc a:hover {
            text-decoration: underline;
        }