*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #e25822;
            --primary-dark: #b33e10;
            --accent: #1a1a2e;
            --light-bg: #f8f4f0;
            --card-bg: #ffffff;
            --text: #2d2d2d;
            --text-muted: #6b6b6b;
            --border: #eae0d5;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: var(--light-bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 18px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 26px;
            font-weight: 800;
            color: #e94560;
            text-decoration: none;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: #e25822;
            transform: scale(1.03);
        }
        .my-logo i {
            color: #e25822;
        }
        .main-nav {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .main-nav a {
            color: #eae0d5;
            text-decoration: none;
            padding: 8px 14px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 4px 8px;
        }
        .breadcrumb-wrap {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 6px;
            color: #ccc;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 30px;
            margin: 30px 0;
        }
        .article-body {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 30px;
        }
        h1 {
            font-size: 32px;
            color: var(--accent);
            line-height: 1.3;
            margin-bottom: 8px;
            font-weight: 800;
        }
        h2 {
            font-size: 24px;
            color: var(--accent);
            margin: 30px 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary);
            font-weight: 700;
        }
        h3 {
            font-size: 19px;
            color: var(--accent);
            margin: 22px 0 10px;
            font-weight: 600;
        }
        h4 {
            font-size: 16px;
            color: var(--primary-dark);
            margin: 16px 0 8px;
            font-weight: 600;
        }
        p {
            margin-bottom: 14px;
        }
        a {
            color: var(--primary);
        }
        ul,
        ol {
            margin: 10px 0 16px 22px;
        }
        li {
            margin-bottom: 6px;
        }
        .article-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border);
            padding-bottom: 16px;
            margin-bottom: 20px;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .feature-image {
            width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: var(--shadow);
        }
        .callout {
            background: #fff6ed;
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .info-box {
            background: #f1f5f9;
            border-radius: 10px;
            padding: 16px 20px;
            margin: 16px 0;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 14px 0;
        }
        .tag {
            background: #eee;
            border-radius: 20px;
            padding: 4px 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 20px;
        }
        .sidebar-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
        }
        .sidebar-card a {
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 13px;
            text-decoration: none;
        }
        .sidebar-card a:hover {
            color: var(--primary-dark);
        }
        .search-box {
            display: flex;
            gap: 6px;
            margin-bottom: 8px;
        }
        .search-box input {
            flex: 1;
            padding: 8px 12px;
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 14px;
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 20px;
            padding: 8px 14px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }
        .comment-form textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid var(--border);
            border-radius: 8px;
            min-height: 80px;
            font-size: 14px;
            resize: vertical;
        }
        .comment-form input {
            width: 100%;
            padding: 8px 10px;
            border: 1px solid var(--border);
            border-radius: 8px;
            margin: 6px 0;
            font-size: 14px;
        }
        .comment-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 20px;
            padding: 8px 18px;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 8px;
        }
        .comment-form button:hover {
            background: var(--primary-dark);
        }
        .rate-stars {
            display: flex;
            gap: 4px;
            font-size: 22px;
            color: #f6c343;
            margin: 10px 0;
        }
        .rate-stars i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .rate-stars i:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background: var(--accent);
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .site-footer a {
            color: #e25822;
        }
        .friend-links {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
            padding: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
        }
        .friend-links a {
            color: #eae0d5;
            text-decoration: none;
            font-size: 13px;
            padding: 5px 10px;
            border-radius: 15px;
            background: rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .friend-links a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(0, 0, 0, 0.4);
                border-radius: 8px;
                padding: 10px 0;
                margin-top: 10px;
            }
            .main-nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 20px;
            }
            .article-body {
                padding: 18px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 22px;
            }
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 16px 0;
            font-size: 14px;
        }
        .data-table th,
        .data-table td {
            border: 1px solid var(--border);
            padding: 10px 12px;
            text-align: left;
        }
        .data-table th {
            background: var(--accent);
            color: #fff;
        }
        .data-table tr:nth-child(even) {
            background: #f9f5f0;
        }
        .author-box {
            display: flex;
            gap: 16px;
            background: #f5f0ec;
            border-radius: 10px;
            padding: 16px;
            margin: 24px 0;
        }
        .author-box img {
            width: 60px;
            height: 60px;
            border-radius: 50%;
        }
        .author-box .author-info {
            font-size: 14px;
        }
        .related-links {
            margin: 20px 0;
            padding: 16px;
            background: #faf7f4;
            border-radius: 10px;
            border-left: 4px solid var(--primary);
        }
        .related-links a {
            display: inline-block;
            margin: 4px 8px 4px 0;
            background: #fff;
            border: 1px solid var(--border);
            padding: 4px 10px;
            border-radius: 15px;
            font-size: 13px;
            text-decoration: none;
            transition: var(--transition);
        }
        .related-links a:hover {
            border-color: var(--primary);
            background: #fff6ed;
        }