:root {
            --primary-blue: #2a52be;
            --accent-gold: #ffd700;
            --dark-bg: #0f172a;
            --light-bg: #f8fafc;
            --text-dark: #1e293b;
            --text-light: #64748b;
            --success-green: #10b981;
            --warning-orange: #f59e0b;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-blue) 100%);
            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-size: 2.2rem;
            font-weight: 900;
            text-decoration: none;
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: white;
        }
        .my-logo i {
            font-size: 2.5rem;
        }
        .main-nav ul {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent-gold);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e2e8f0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        article h1 {
            color: var(--dark-bg);
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            border-bottom: 4px solid var(--accent-gold);
            padding-bottom: 1rem;
        }
        article h2 {
            color: var(--primary-blue);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #cbd5e1;
        }
        article h3 {
            color: var(--text-dark);
            margin: 2rem 0 1rem;
        }
        article h4 {
            color: var(--text-light);
            margin: 1.5rem 0 0.8rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        article strong {
            color: var(--primary-blue);
            font-weight: 700;
        }
        article em {
            color: var(--warning-orange);
            font-style: italic;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #f1f5f9;
            padding: 1rem;
            border-radius: var(--radius);
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .update-time {
            color: var(--success-green);
            font-weight: 600;
        }
        .feature-img {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }
        .inline-link {
            color: var(--primary-blue);
            text-decoration: none;
            border-bottom: 2px dotted var(--primary-blue);
            font-weight: 600;
            transition: var(--transition);
        }
        .inline-link:hover {
            color: var(--accent-gold);
            border-bottom-style: solid;
            background-color: #f0f7ff;
        }
        .tip-box {
            background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
            border-left: 6px solid var(--primary-blue);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip-box strong {
            color: #0369a1;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--dark-bg);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-gold);
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem;
            border: 2px solid #cbd5e1;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--dark-bg);
        }
        .rating-widget .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .rating-widget .star {
            color: #cbd5e1;
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget .star.active,
        .rating-widget .star:hover {
            color: var(--accent-gold);
        }
        .rating-form button {
            width: 100%;
            padding: 0.9rem;
            background: var(--success-green);
            color: white;
            border: none;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background: #0da271;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #cbd5e1;
            border-radius: var(--radius);
            resize: vertical;
            min-height: 120px;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .comment-form button {
            padding: 0.9rem 2rem;
            background: var(--primary-blue);
            color: white;
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background: var(--dark-bg);
        }
        .site-footer {
            background: var(--dark-bg);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: var(--radius);
            margin-bottom: 1rem;
        }
        friend-link a {
            color: var(--accent-gold);
            text-decoration: none;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--dark-bg);
                flex-direction: column;
                padding: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-top: 1px solid #334155;
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                padding: 1rem;
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
            article {
                padding: 2rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .widget {
            animation: fadeIn 0.8s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(42, 82, 190, 0.4); }
            70% { box-shadow: 0 0 0 15px rgba(42, 82, 190, 0); }
            100% { box-shadow: 0 0 0 0 rgba(42, 82, 190, 0); }
        }