*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --secondary: #f5a623;
            --accent: #e74c3c;
            --bg: #f8f9fa;
            --bg-dark: #0d1b2a;
            --text: #222;
            --text-light: #555;
            --white: #fff;
            --border: #ddd;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-sm: 6px;
            --transition: 0.3s ease;
            --font: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--bg-dark);
            color: var(--white);
            padding: 16px 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;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: var(--white);
            text-transform: uppercase;
            background: linear-gradient(135deg, var(--secondary), #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo span {
            font-weight: 300;
            font-size: 0.7rem;
            display: block;
            color: #aaa;
            -webkit-text-fill-color: #aaa;
            letter-spacing: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            color: var(--secondary);
        }
        nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a {
            color: #ddd;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--secondary);
            text-decoration: none;
        }
        nav a.active {
            color: var(--secondary);
            border-bottom: 2px solid var(--secondary);
        }
        .breadcrumb {
            background: transparent;
            padding: 10px 0 6px;
            font-size: 0.85rem;
            color: #aaa;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb span {
            color: #777;
        }
        .hero {
            background: linear-gradient(145deg, var(--bg-dark), #162a4a);
            color: var(--white);
            padding: 50px 0 40px;
            border-radius: 0 0 var(--radius) var(--radius);
            margin-bottom: 30px;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(to right, #fff, var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            color: #ccc;
            max-width: 720px;
            margin-bottom: 12px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: #aaa;
            margin-top: 12px;
        }
        .hero-meta i {
            margin-right: 6px;
            color: var(--secondary);
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        @media(max-width:992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .content h2 {
            font-size: 2rem;
            margin: 48px 0 16px;
            color: var(--primary);
            border-left: 5px solid var(--secondary);
            padding-left: 18px;
        }
        .content h3 {
            font-size: 1.5rem;
            margin: 36px 0 12px;
            color: var(--primary-light);
        }
        .content h4 {
            font-size: 1.2rem;
            margin: 24px 0 10px;
            color: #2c3e50;
        }
        .content p {
            margin-bottom: 20px;
            color: var(--text-light);
            font-size: 1.02rem;
        }
        .content strong {
            color: var(--text);
            font-weight: 700;
        }
        .content ul,
        .content ol {
            margin: 16px 0 24px 24px;
            color: var(--text-light);
        }
        .content li {
            margin-bottom: 8px;
        }
        .content .highlight-box {
            background: #eef5ff;
            border-left: 4px solid var(--primary-light);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
        }
        .content .highlight-box.alert {
            background: #fff8e6;
            border-left-color: var(--secondary);
        }
        .content .highlight-box.danger {
            background: #fce8e6;
            border-left-color: var(--accent);
        }
        .feature-img {
            margin: 30px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .feature-img figcaption {
            text-align: center;
            font-size: 0.85rem;
            color: #777;
            margin-top: 8px;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-bottom: 14px;
            color: var(--primary);
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px dashed #eee;
        }
        .sidebar-card ul li a {
            font-size: 0.92rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 16px 0;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--primary-light);
        }
        .search-form button {
            padding: 12px 24px;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .comment-section,
        .rating-section {
            background: var(--white);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            margin: 40px 0;
        }
        .comment-section h2,
        .rating-section h2 {
            font-size: 1.6rem;
            margin-bottom: 18px;
            color: var(--primary);
        }
        .comment-form textarea,
        .comment-form input,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-family: var(--font);
            outline: none;
            transition: var(--transition);
            margin-bottom: 14px;
        }
        .comment-form textarea:focus,
        .comment-form input:focus,
        .rating-form select:focus,
        .rating-form input:focus {
            border-color: var(--primary-light);
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button,
        .rating-form button {
            padding: 12px 32px;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            margin-bottom: 14px;
        }
        .rating-stars i.active {
            color: var(--secondary);
        }
        footer {
            background: var(--bg-dark);
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 60px;
            border-top: 4px solid var(--secondary);
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        @media(max-width:768px) {
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        footer h4 {
            color: var(--white);
            font-size: 1.1rem;
            margin-bottom: 14px;
            border-bottom: 1px solid #333;
            padding-bottom: 8px;
        }
        footer a {
            color: #aaa;
        }
        footer a:hover {
            color: var(--secondary);
        }
        friend-link {
            display: block;
            padding: 12px 0;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            font-size: 0.85rem;
            color: #777;
        }
        .copyright strong {
            color: #aaa;
        }
        @media(max-width:768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--bg-dark);
                padding: 16px 0 8px;
                margin-top: 12px;
                border-top: 1px solid #333;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 10px 16px;
                width: 100%;
                text-align: left;
                border-bottom: 1px solid #222;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content h2 {
                font-size: 1.5rem;
            }
            .content h3 {
                font-size: 1.25rem;
            }
            .comment-section,
            .rating-section {
                padding: 18px 16px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 12px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th {
            background: var(--primary);
            color: var(--white);
            padding: 12px 16px;
            text-align: left;
        }
        table td {
            padding: 10px 16px;
            border-bottom: 1px solid #eee;
        }
        table tr:hover td {
            background: #f5f9ff;
        }
        .tag {
            display: inline-block;
            background: #eef5ff;
            color: var(--primary-light);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 2.2rem;
            margin-right: 8px;
            vertical-align: middle;
        }
        .last-updated {
            display: inline-block;
            background: var(--secondary);
            color: var(--bg-dark);
            padding: 4px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
        }