*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #0a1f3e;
            --primary-light: #1a3a6a;
            --accent: #f5a623;
            --accent-dark: #d48f1a;
            --bg: #f6f9fc;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-light: #555;
            --border: #dce4ed;
            --radius: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
        }
        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: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-dark);
        }
        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: #fff;
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
            gap: 10px 20px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f5a623, #f7c948);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #ccc;
            color: #ccc;
            display: block;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: var(--accent);
        }
        nav {
            display: flex;
            gap: 8px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0e8f0;
            text-decoration: none;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 6px 10px;
            border-radius: 6px;
            transition: 0.2s;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }
        .nav-search-btn {
            background: var(--accent);
            color: #0a1f3e;
            border: none;
            padding: 6px 16px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-search-btn:hover {
            background: var(--accent-dark);
        }
        .breadcrumb {
            background: #eef3f8;
            padding: 10px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #999;
        }
        .breadcrumb a {
            color: var(--primary-light);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .active {
            color: var(--text-light);
            font-weight: 500;
        }
        main {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media(max-width:992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: var(--primary);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 8px;
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--primary-light);
        }
        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #2c3e5a;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.02rem;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .highlight-box {
            background: #eef6ff;
            border-left: 5px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 28px 0;
        }
        .article-body .highlight-box strong {
            color: var(--primary);
        }
        .article-body .stat-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            align-items: center;
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }
        .meta-line i {
            margin-right: 6px;
            color: var(--accent);
        }
        .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            background: #f0f4f9;
            padding: 10px 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            text-align: center;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 28px;
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
        }
        .sidebar-link-list li {
            margin-bottom: 10px;
            padding: 6px 0;
            border-bottom: 1px dashed #e8edf4;
        }
        .sidebar-link-list a {
            font-weight: 500;
            font-size: 0.95rem;
            display: block;
        }
        .sidebar-link-list a:hover {
            padding-left: 4px;
        }
        .search-box {
            display: flex;
            gap: 8px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            border-color: var(--accent);
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 20px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-box button:hover {
            background: var(--primary-light);
        }
        .comment-section,
        .rating-section {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 30px;
            box-shadow: var(--shadow);
            margin-top: 40px;
            border: 1px solid var(--border);
        }
        .comment-section h2,
        .rating-section h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary);
            border: none;
            padding: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: var(--font);
            transition: 0.2s;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            display: inline-block;
        }
        .btn:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #0a1f3e;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            transition: 0.15s;
            color: #ddd;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: var(--accent);
        }
        footer {
            background: var(--primary);
            color: #d0d8e4;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        footer a {
            color: #b0c4de;
        }
        footer a:hover {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        @media(max-width:768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 14px;
            border-bottom: 2px solid rgba(255, 255, 255, 0.15);
            padding-bottom: 8px;
        }
        .friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            list-style: none;
            padding: 0;
        }
        .friend-link li a {
            font-weight: 500;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #9aafc9;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: inline-block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0d2547;
                padding: 16px 12px;
                border-radius: 0 0 var(--radius) var(--radius);
                margin-top: 8px;
                gap: 4px;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 10px 12px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .header-inner {
                position: relative;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }
            .comment-section,
            .rating-section {
                padding: 20px 16px;
            }
            .meta-line {
                font-size: 0.8rem;
                gap: 10px;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .search-box {
                flex-wrap: wrap;
            }
            .search-box button {
                width: 100%;
                padding: 12px;
            }
        }
        .article-body .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .article-body table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
        }
        .article-body table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
        }
        .article-body table tr:nth-child(even) {
            background: #f7faff;
        }
        .article-body table tr:hover {
            background: #edf4fd;
        }