* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            color: #4a6ee0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff66aa;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, #2c3e50, #4a6ee0);
            color: white;
            padding: 1.5rem 0;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            padding-left: 15px;
        }
        .my-logo span {
            color: #ffcc00;
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 1.8rem;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: rgba(255,255,255,0.15);
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            padding: 1rem 20px;
            background-color: #eef2ff;
            border-radius: 8px;
            margin: 1.5rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #4a6ee0;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #888;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 0.7rem;
        }
        h2 {
            font-size: 2rem;
            color: #4a6ee0;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #ff66aa;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #444;
            font-weight: 500;
            background-color: #f0f7ff;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #4a6ee0;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        strong {
            color: #2c3e50;
            font-weight: 700;
        }
        em {
            color: #ff66aa;
            font-style: italic;
        }
        blockquote {
            border-left: 5px solid #ffcc00;
            padding: 1rem 1.5rem;
            margin: 2rem 0;
            background-color: #fff9e6;
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        .featured-img {
            width: 80%;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .img-caption {
            text-align: center;
            font-size: 0.95rem;
            color: #666;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .interactive-module {
            background: linear-gradient(to right, #f8f9ff, #eef2ff);
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
            border: 1px solid #d1ddff;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #4a6ee0;
            margin-bottom: 1.5rem;
        }
        .module-title i {
            font-size: 1.5rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        input, textarea, select {
            padding: 0.9rem;
            border: 2px solid #ccd9ff;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4a6ee0;
        }
        button, .btn {
            background: linear-gradient(to right, #4a6ee0, #6a8eff);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #3a5ed0, #5a7eff);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(74, 110, 224, 0.3);
        }
        .rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        aside {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: fit-content;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .widget-title {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .link-list {
            list-style: none;
            margin-left: 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding: 0.8rem;
            background-color: #f8f9ff;
            border-radius: 6px;
            transition: transform 0.3s;
        }
        .link-list li:hover {
            transform: translateX(5px);
            background-color: #eef2ff;
        }
        .update-time {
            background-color: #e6f7ff;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            color: #0066cc;
            margin-top: 2rem;
        }
        footer {
            background: #2c3e50;
            color: #ccc;
            padding: 3rem 2rem;
            border-radius: 12px 12px 0 0;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ffcc00;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.6rem 1rem;
            margin: 0.3rem;
            border-radius: 6px;
            color: #aaccff;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 15px;
            }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .my-logo {
                margin-bottom: 1rem;
                padding-left: 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 0.5rem 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article, aside {
                padding: 1.5rem;
            }
            .featured-img {
                width: 100%;
            }
        }