* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #1e40af;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #f59e0b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            padding: 16px 0;
            border-bottom: 4px solid #f59e0b;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            text-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
        }
        .my-logo span {
            color: #f59e0b;
        }
        .my-logo small {
            font-size: 14px;
            font-weight: 400;
            color: #94a3b8;
            display: block;
            line-height: 1.2;
        }
        .my-logo:hover {
            color: #f59e0b;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f59e0b;
            color: #f59e0b;
            font-size: 24px;
            padding: 8px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #f59e0b;
            color: #0f172a;
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            transition: 0.2s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #f59e0b;
            color: #0f172a;
            text-decoration: none;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 12px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 14px;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 12px;
            color: #94a3b8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb a:hover {
            color: #f59e0b;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #0f172a, #1e3a5f);
            color: #fff;
            padding: 48px 0 40px;
            text-align: center;
        }
        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero h1 span {
            color: #f59e0b;
        }
        .hero p {
            font-size: 18px;
            color: #cbd5e1;
            max-width: 800px;
            margin: 0 auto 24px;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            font-size: 15px;
            color: #94a3b8;
        }
        .hero-meta i {
            color: #f59e0b;
            margin-right: 8px;
        }
        .last-updated {
            background: rgba(245, 158, 11, 0.15);
            padding: 6px 18px;
            border-radius: 30px;
            border: 1px solid rgba(245, 158, 11, 0.3);
        }
        .content-area {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body h2 {
            font-size: 30px;
            font-weight: 700;
            color: #0f172a;
            margin-top: 48px;
            margin-bottom: 16px;
            border-left: 5px solid #f59e0b;
            padding-left: 18px;
        }
        .article-body h3 {
            font-size: 24px;
            font-weight: 600;
            color: #1e3a5f;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .article-body h4 {
            font-size: 19px;
            font-weight: 600;
            color: #334155;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 16px;
            color: #334155;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 24px;
        }
        .article-body li {
            margin-bottom: 8px;
            font-size: 16px;
        }
        .article-body strong {
            color: #0f172a;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #f59e0b;
            padding: 20px 24px;
            border-radius: 8px;
            margin: 24px 0;
        }
        .highlight-box p {
            margin-bottom: 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        table th {
            background: #1e3a5f;
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 12px 18px;
            border-bottom: 1px solid #e2e8f0;
        }
        table tr:nth-child(even) {
            background: #f8fafc;
        }
        table tr:hover {
            background: #f1f5f9;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }
        .featured-image figcaption {
            font-size: 14px;
            color: #64748b;
            text-align: center;
            margin-top: 10px;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 24px;
            border: 1px solid #e2e8f0;
        }
        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 14px;
            border-bottom: 2px solid #f59e0b;
            padding-bottom: 10px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
        }
        .sidebar-card ul li a {
            font-size: 15px;
            display: block;
            padding: 6px 0;
        }
        .sidebar-card ul li a::before {
            content: "▸ ";
            color: #f59e0b;
            font-weight: 700;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 20px 0;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 16px;
            transition: 0.2s;
            outline: none;
        }
        .search-form input:focus {
            border-color: #f59e0b;
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
        }
        .search-form button {
            background: #1e3a5f;
            color: #fff;
            border: none;
            padding: 12px 22px;
            border-radius: 10px;
            font-size: 16px;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #f59e0b;
            color: #0f172a;
        }
        .interaction-section {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #e2e8f0;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 15px;
            margin-bottom: 14px;
            outline: none;
            transition: 0.2s;
            font-family: inherit;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #f59e0b;
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button {
            background: #1e3a5f;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form button:hover {
            background: #f59e0b;
            color: #0f172a;
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 32px;
            margin: 12px 0 18px;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            color: #cbd5e1;
            transition: 0.2s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f59e0b;
        }
        .score-form button {
            background: #1e3a5f;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .score-form button:hover {
            background: #f59e0b;
            color: #0f172a;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 40px 0 24px;
            border-top: 4px solid #f59e0b;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-grid a {
            color: #94a3b8;
            display: block;
            margin-bottom: 8px;
            font-size: 15px;
        }
        .footer-grid a:hover {
            color: #f59e0b;
        }
        friend-link {
            display: block;
            margin-top: 12px;
        }
        friend-link a {
            display: inline-block;
            margin-right: 20px;
            color: #f59e0b;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            border-top: 1px solid #1e2d4a;
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
            color: #64748b;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0f172a;
                padding: 16px 0;
                margin-top: 12px;
                border-top: 1px solid #1e3a5f;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 20px;
                border-radius: 0;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero p {
                font-size: 16px;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-meta {
                flex-direction: column;
                gap: 8px;
                align-items: center;
            }
            .article-body h2 {
                font-size: 24px;
            }
            .article-body h3 {
                font-size: 20px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .my-logo {
                font-size: 22px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            table th,
            table td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .tag {
            display: inline-block;
            background: #e2e8f0;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            color: #475569;
            margin: 4px 4px 4px 0;
        }
        .tag:hover {
            background: #f59e0b;
            color: #fff;
            text-decoration: none;
        }
        .btn-outline {
            display: inline-block;
            border: 2px solid #1e3a5f;
            color: #1e3a5f;
            padding: 10px 24px;
            border-radius: 10px;
            font-weight: 600;
            transition: 0.2s;
        }
        .btn-outline:hover {
            background: #1e3a5f;
            color: #fff;
            text-decoration: none;
        }