* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            color: #333;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #1e293b;
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #60a5fa, #34d399);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .breadcrumb {
            background: #f8fafc;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #94a3b8;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: #cbd5e1;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: white;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #60a5fa;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.5rem;
        }
        .search-container {
            background: #3b82f6;
            padding: 1.5rem 0;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background: #1d4ed8;
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-button:hover {
            background: #1e40af;
        }
        main {
            flex: 1;
            padding: 2.5rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
        }
        h1 {
            font-size: 2.8rem;
            color: #1e293b;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #3b82f6;
            padding-left: 1.5rem;
        }
        h2 {
            font-size: 2.1rem;
            color: #334155;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #cbd5e1;
        }
        h3 {
            font-size: 1.7rem;
            color: #475569;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #64748b;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #4b5563;
            font-weight: 500;
            background: #f0f9ff;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #3b82f6;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #fef3c7 0%, #fef3c7 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            margin: 2rem auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 1px solid #e2e8f0;
        }
        blockquote {
            background: linear-gradient(to right, #e0f2fe, #f0f9ff);
            border-left: 5px solid #0ea5e9;
            padding: 1.8rem;
            margin: 2rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #475569;
        }
        aside {
            background: white;
            border-radius: 16px;
            padding: 1.8rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: #1e293b;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #60a5fa;
        }
        .comment-form, .rating-form {
            background: #f8fafc;
            padding: 1.8rem;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
            margin-top: 2rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #475569;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
        }
        button[type="submit"] {
            background: linear-gradient(90deg, #3b82f6, #1d4ed8);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        button[type="submit"]:hover {
            background: linear-gradient(90deg, #1d4ed8, #1e40af);
            transform: translateY(-2px);
            box-shadow: 0 5px 12px rgba(29, 78, 216, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #fbbf24;
            margin: 0.5rem 0;
        }
        .star-rating label {
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .related-links {
            background: #f1f5f9;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .related-links li {
            background: white;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            border-left: 4px solid #3b82f6;
            transition: transform 0.3s;
        }
        .related-links li:hover {
            transform: translateX(5px);
        }
        footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3b82f6;
            display: inline-block;
        }
        friend-link {
            display: block;
            background: #334155;
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            text-align: center;
            font-weight: 600;
        }
        friend-link a {
            color: #60a5fa;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            font-size: 0.95rem;
            color: #94a3b8;
        }
        .update-time {
            background: #dcfce7;
            color: #166534;
            padding: 0.8rem;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            margin: 1.5rem 0;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 300px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid #334155;
            }
            .main-nav a {
                display: block;
                padding: 0.8rem 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.8rem;
            }
            .content-grid {
                gap: 1.5rem;
            }
        }