*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #0f1923;
            --secondary: #1a2a3a;
            --accent: #f5a623;
            --accent2: #e8505a;
            --light: #f0f4f8;
            --text: #1e2a36;
            --text-light: #5a6a7a;
            --white: #ffffff;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
            --max-width: 1200px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--light);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--accent2);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #c0392b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--primary);
            color: var(--white);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--accent);
            text-transform: uppercase;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            font-size: 1.8rem;
            color: var(--accent2);
        }
        .my-logo:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .my-logo span {
            font-weight: 300;
            font-size: 0.7rem;
            display: block;
            color: #aaa;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .navbar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .navbar a {
            color: #ddd;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .navbar a:hover,
        .navbar a.active {
            color: var(--white);
            background: var(--accent2);
            text-decoration: none;
        }
        .navbar a i {
            margin-right: 6px;
            font-size: 0.8rem;
        }
        .breadcrumb-wrap {
            background: var(--secondary);
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.85rem;
            color: #aaa;
            gap: 4px 8px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 8px;
            color: #777;
            font-size: 1.1rem;
        }
        .breadcrumb a {
            color: var(--accent);
        }
        .breadcrumb a:hover {
            color: var(--accent2);
        }
        .breadcrumb .current {
            color: #ccc;
        }
        main {
            padding: 40px 0 60px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        @media(max-width:992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: var(--white);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow);
        }
        article h1 {
            font-size: 2.2rem;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 12px;
            font-weight: 800;
        }
        article h1 i {
            color: var(--accent2);
            margin-right: 8px;
        }
        .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 24px;
            border-bottom: 1px solid #eef2f6;
            padding-bottom: 16px;
        }
        .meta i {
            margin-right: 6px;
            color: var(--accent2);
        }
        .meta .updated {
            font-weight: 600;
            color: var(--accent);
        }
        article h2 {
            font-size: 1.7rem;
            margin-top: 40px;
            margin-bottom: 14px;
            color: var(--primary);
            border-left: 5px solid var(--accent2);
            padding-left: 16px;
            font-weight: 700;
        }
        article h3 {
            font-size: 1.3rem;
            margin-top: 30px;
            margin-bottom: 10px;
            color: var(--secondary);
            font-weight: 600;
        }
        article h4 {
            font-size: 1.1rem;
            margin-top: 20px;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 600;
        }
        article p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: #2d3a45;
        }
        article ul,
        article ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        article li {
            margin-bottom: 8px;
            font-size: 1rem;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: var(--accent2);
        }
        .code-block {
            background: #1e2a36;
            color: #e8e8e8;
            padding: 18px 22px;
            border-radius: var(--radius);
            font-family: 'Fira Code', monospace;
            font-size: 0.9rem;
            overflow-x: auto;
            margin: 20px 0;
            white-space: pre-wrap;
            word-break: break-word;
        }
        .btn {
            display: inline-block;
            background: var(--accent2);
            color: var(--white);
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background: #c0392b;
            transform: translateY(-2px);
            text-decoration: none;
            color: var(--white);
        }
        .btn i {
            margin-right: 8px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 14px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
            font-weight: 700;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            color: var(--text);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a:hover {
            color: var(--accent2);
        }
        .sidebar-card ul li a i {
            color: var(--accent2);
            font-size: 0.8rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--accent2);
        }
        .search-form button {
            background: var(--accent2);
            color: var(--white);
            border: none;
            padding: 10px 18px;
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #c0392b;
        }
        .comment-section,
        .rating-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #eef2f6;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.4rem;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e0e0e0;
            border-radius: var(--radius);
            font-family: var(--font);
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            transition: var(--transition);
        }
        .comment-form textarea:focus {
            border-color: var(--accent2);
            outline: none;
        }
        .comment-form .btn {
            margin-top: 10px;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 10px 0 14px;
            transition: var(--transition);
        }
        .rating-stars i.active {
            color: var(--accent);
        }
        .rating-stars i:hover {
            color: var(--accent);
            transform: scale(1.1);
        }
        .featured-image {
            margin: 28px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 10px 16px;
            background: #f7f9fc;
            font-size: 0.85rem;
            color: var(--text-light);
            font-style: italic;
        }
        footer {
            background: var(--primary);
            color: #bbb;
            padding: 40px 0 20px;
            margin-top: 20px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        @media(max-width:768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-inner h4 {
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .footer-inner p {
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner ul li {
            padding: 4px 0;
        }
        .footer-inner ul li a {
            color: #bbb;
            font-size: 0.9rem;
        }
        .footer-inner ul li a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            padding: 18px 20px;
            border-radius: var(--radius);
            margin: 20px 0 10px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        friend-link a {
            color: var(--accent);
            font-weight: 500;
        }
        friend-link a:hover {
            color: var(--accent2);
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: #888;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .copyright strong {
            color: #aaa;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .navbar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 0 8px;
                gap: 4px;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                width: 100%;
                padding: 10px 14px;
                border-radius: 8px;
            }
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            article {
                padding: 20px 16px;
            }
            article h1 {
                font-size: 1.6rem;
            }
            article h2 {
                font-size: 1.3rem;
                padding-left: 12px;
            }
            article h3 {
                font-size: 1.1rem;
            }
            .main-grid {
                gap: 24px;
            }
            .sidebar {
                order: -1;
            }
        }
        @media(max-width:480px) {
            .meta {
                flex-direction: column;
                gap: 6px;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--accent2);
            color: var(--white);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(232, 80, 90, 0.3);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .scroll-top:hover {
            background: #c0392b;
            transform: translateY(-4px);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }
        table th,
        table td {
            padding: 12px 16px;
            border: 1px solid #e0e0e0;
            text-align: left;
        }
        table th {
            background: var(--primary);
            color: var(--white);
            font-weight: 600;
        }
        table tr:nth-child(even) {
            background: #f8fafc;
        }
        table tr:hover {
            background: #f0f4f8;
        }
        @media(max-width:600px) {
            table {
                font-size: 0.8rem;
            }
            table th,
            table td {
                padding: 8px 10px;
            }
        }
        .tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .tag i {
            margin-right: 4px;
        }