:root {
            --primary-dark: #0a0a14;
            --primary-blue: #1a5fb4;
            --accent-gold: #d4af37;
            --accent-red: #c00;
            --light-gray: #f5f5f7;
            --mid-gray: #86868b;
            --text-dark: #1d1d1f;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--light-gray);
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-red);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--primary-dark);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            background: linear-gradient(90deg, #fff 30%, var(--accent-gold) 70%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none !important;
        }
        .my-logo:hover {
            text-decoration: none !important;
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 500;
            font-size: 1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            text-decoration: none;
            color: var(--accent-gold);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            background: none;
            border: none;
            padding: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: #e8e8ed;
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: var(--mid-gray);
        }
        .breadcrumb a {
            color: var(--mid-gray);
        }
        .breadcrumb a:hover {
            color: var(--primary-blue);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        .main-article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid var(--light-gray);
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--primary-dark);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--mid-gray);
            font-size: 0.9rem;
            align-items: center;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .article-meta .update-time {
            color: var(--accent-red);
            font-weight: 600;
        }
        .article-intro {
            font-size: 1.3rem;
            color: var(--primary-dark);
            background: #f0f8ff;
            padding: 1.5rem;
            border-left: 4px solid var(--primary-blue);
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .article-intro p {
            margin: 0;
        }
        .article-content h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--primary-dark);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .article-content h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: var(--primary-blue);
        }
        .article-content h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: var(--text-dark);
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .article-content em {
            font-style: italic;
            color: var(--mid-gray);
        }
        .highlight-box {
            background: linear-gradient(135deg, #fdfcfb 0%, #f5f7fa 100%);
            border: 1px solid #d1e0ff;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .highlight-box h4 {
            color: var(--primary-blue);
            margin-top: 0;
        }
        .tip {
            background-color: #fff8e1;
            border-left: 4px solid #ffc107;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
        }
        .tip::before {
            content: '💡 Pro Tip: ';
            font-weight: bold;
            color: #ff9800;
        }
        .article-image {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 900px;
        }
        .article-image img {
            border-radius: var(--border-radius);
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-image img:hover {
            transform: scale(1.01);
        }
        .image-caption {
            font-size: 0.9rem;
            color: var(--mid-gray);
            margin-top: 0.5rem;
            font-style: italic;
        }
        .link-list {
            list-style: none;
            padding: 1.5rem;
            background: var(--light-gray);
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .link-list li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--primary-blue);
            font-weight: bold;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: var(--primary-dark);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-gold);
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--primary-dark);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 1.8rem;
            gap: 5px;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: var(--accent-gold);
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        .form-group input,
        .form-group textarea {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--accent-gold);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-top: 1rem;
        }
        friend-link h5 {
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .content-wrapper {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .article-header h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
                order: 3;
                margin-top: 1rem;
            }
            .main-nav.active {
                max-height: 300px;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
                padding: 1rem 0;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .main-article {
                padding: 1.5rem;
            }
            .article-content h2 {
                font-size: 1.7rem;
            }
            .article-content h3 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-intro {
                font-size: 1.1rem;
                padding: 1rem;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }