* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #6a5acd;
            --primary-dark: #4b3e8a;
            --primary-light: #8b7fd3;
            --accent: #ffb347;
            --accent-dark: #e6952e;
            --bg: #f8f7fc;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #555570;
            --border: #e0ddf0;
            --shadow: 0 4px 20px rgba(106, 90, 205, 0.10);
            --radius: 16px;
            --radius-sm: 10px;
            --max-width: 1200px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --transition: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding: 0 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            min-height: 100vh;
        }
        .wrapper {
            max-width: var(--max-width);
            width: 100%;
            background: var(--bg-card);
            box-shadow: var(--shadow);
            border-radius: var(--radius);
            margin: 30px 0;
            padding: 30px 40px;
            transition: padding 0.3s;
        }
        @media(max-width:768px) {
            body {
                padding: 0 10px;
            }
            .wrapper {
                padding: 20px 18px;
                margin: 15px 0;
                border-radius: var(--radius-sm);
            }
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 20px;
            border-bottom: 2px solid var(--border);
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 2.2rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media(max-width:480px) {
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo i {
                font-size: 1.6rem;
            }
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            color: var(--accent);
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            align-items: center;
        }
        .main-nav a {
            text-decoration: none;
            color: var(--text-light);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .main-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 18px 0 10px;
                gap: 10px;
                border-top: 1px solid var(--border);
                margin-top: 14px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 8px 0;
                border-bottom: 1px solid var(--border);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 12px;
            padding: 16px 0 10px;
            font-size: 0.88rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #b0aad0;
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 500;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.2;
            margin: 24px 0 16px;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 48px 0 18px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary);
            margin: 32px 0 14px;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text);
            margin: 24px 0 10px;
        }
        p {
            margin-bottom: 18px;
            color: var(--text);
        }
        .lead {
            font-size: 1.2rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 30px;
            font-weight: 400;
        }
        @media(max-width:768px) {
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            h4 {
                font-size: 1.1rem;
            }
            .lead {
                font-size: 1.05rem;
            }
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius-sm);
            margin: 28px auto;
            display: block;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .content-body a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1.5px dotted var(--primary-light);
            transition: var(--transition);
        }
        .content-body a:hover {
            color: var(--accent-dark);
            border-bottom-color: var(--accent);
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0edff, #fdf6e7);
            border-left: 5px solid var(--accent);
            padding: 24px 28px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 30px 0;
        }
        .highlight-box strong {
            color: var(--primary-dark);
        }
        .stat-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        .search-section {
            background: var(--bg);
            padding: 30px 28px;
            border-radius: var(--radius-sm);
            margin: 40px 0 30px;
            border: 1px solid var(--border);
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 14px;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
            background: #fff;
        }
        .search-form input[type="text"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(106, 90, 205, 0.08);
        }
        .search-form button {
            padding: 14px 34px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form button:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(106, 90, 205, 0.25);
        }
        @media(max-width:480px) {
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
        }
        .comments-section {
            margin: 48px 0 30px;
            padding: 30px 28px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }
        .comments-section h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 120px;
            padding: 16px 20px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: var(--transition);
            resize: vertical;
            background: #fff;
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(106, 90, 205, 0.06);
        }
        .comment-form .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin: 14px 0;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
            background: #fff;
        }
        .comment-form .form-row input:focus {
            border-color: var(--primary);
        }
        .comment-form button {
            padding: 12px 36px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .comment-form button:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(106, 90, 205, 0.2);
        }
        .rating-section {
            margin: 30px 0 40px;
            padding: 24px 28px;
            background: linear-gradient(135deg, #f0edff, #fff8ee);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }
        .rating-section h4 {
            margin: 0 0 10px;
        }
        .stars {
            display: flex;
            gap: 6px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
            flex-wrap: wrap;
        }
        .stars i {
            transition: var(--transition);
        }
        .stars i.active,
        .stars i:hover,
        .stars i:hover~i {
            color: var(--accent);
        }
        .stars i:hover {
            transform: scale(1.12);
        }
        .rating-status {
            margin-top: 12px;
            font-size: 0.95rem;
            color: var(--text-light);
        }
        .rating-status strong {
            color: var(--primary-dark);
        }
        friend-link {
            display: block;
            padding: 30px 0 10px;
            border-top: 2px solid var(--border);
            margin-top: 40px;
        }
        friend-link h3 {
            font-size: 1.3rem;
            margin-bottom: 18px;
            color: var(--primary-dark);
        }
        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 26px;
            list-style: none;
            padding: 0;
        }
        .friend-links-list li {
            margin: 0;
        }
        .friend-links-list a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            border-bottom: 1px solid transparent;
        }
        .friend-links-list a:hover {
            color: var(--accent-dark);
            border-bottom-color: var(--accent);
        }
        .site-footer {
            padding: 30px 0 10px;
            border-top: 2px solid var(--border);
            margin-top: 30px;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .site-footer .copyright {
            font-weight: 500;
            color: var(--text);
        }
        .site-footer a {
            color: var(--primary);
            text-decoration: none;
        }
        .site-footer a:hover {
            text-decoration: underline;
        }
        @media(max-width:600px) {
            .wrapper {
                padding: 16px 12px;
            }
            .highlight-box {
                padding: 18px 16px;
            }
            .search-section,
            .comments-section,
            .rating-section {
                padding: 20px 16px;
            }
        }
        .main-nav {
            transition: max-height 0.35s ease;
        }
        .content-body ul,
        .content-body ol {
            margin: 16px 0 22px 24px;
        }
        .content-body li {
            margin-bottom: 8px;
        }
        .content-body blockquote {
            border-left: 4px solid var(--primary-light);
            padding: 16px 24px;
            margin: 24px 0;
            background: #f4f2fd;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }
        .last-updated {
            display: block;
            text-align: right;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px dashed var(--border);
        }
        .last-updated i {
            margin-right: 6px;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
        }
        .data-table tr:hover td {
            background: #f4f2fd;
        }
        .data-table .alt td {
            background: #faf9fe;
        }
        @media(max-width:600px) {
            .data-table {
                font-size: 0.82rem;
            }
            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }
        }
        .toc {
            background: var(--bg);
            padding: 22px 28px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin: 30px 0;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 24px;
        }
        .toc ul li a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }
        .toc ul li a:hover {
            border-bottom-color: var(--accent);
            color: var(--accent-dark);
        }
        @media(max-width:600px) {
            .toc ul {
                flex-direction: column;
                gap: 8px;
            }
        }