* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-dark: #0a1a2a;
            --primary-blue: #1a5fb4;
            --accent-gold: #f2b824;
            --accent-red: #c13c3c;
            --light-bg: #f5f7fa;
            --text-light: #e8f1f8;
            --text-dark: #2c3e50;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-red);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #123456 100%);
            color: var(--text-light);
            padding: 1rem 2rem;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--accent-gold), #ffd166);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent-gold);
        }
        .breadcrumb {
            background-color: #e1e8f0;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ccc;
        }
        .breadcrumb a {
            color: var(--primary-blue);
        }
        .breadcrumb span {
            color: #666;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex-grow: 1;
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        h1 {
            color: var(--primary-dark);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 1rem;
        }
        h2 {
            color: var(--primary-blue);
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            padding-top: 1rem;
        }
        h3 {
            color: var(--accent-red);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--text-dark);
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-dark);
            background-color: #f0f5ff;
            padding: 1.5rem;
            border-left: 5px solid var(--primary-blue);
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--accent-gold);
            margin: 1.5rem 0;
        }
        .tip {
            background-color: #e8f7f0;
            border-left: 4px solid #2ecc71;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip i {
            color: #2ecc71;
            margin-right: 0.5rem;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            margin: 2.5rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0,0,0,0.2);
        }
        .article-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-img img:hover {
            transform: scale(1.03);
        }
        .figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            color: #666;
            background-color: #f9f9f9;
        }
        .modules {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .module {
            background: white;
            border-radius: 10px;
            padding: 2rem;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary-blue);
            transition: var(--transition);
        }
        .module:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        .module h3 {
            margin-top: 0;
            color: var(--primary-blue);
        }
        .module form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .module input, .module textarea, .module select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .module input:focus, .module textarea:focus, .module select:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.2);
        }
        .module button {
            background: linear-gradient(to right, var(--primary-blue), #2a75d6);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }
        .module button:hover {
            background: linear-gradient(to right, #2a75d6, #3d85e6);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: var(--accent-gold);
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: var(--text-light);
            padding: 3rem 2rem 1.5rem;
            margin-top: auto;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h4 {
            color: var(--accent-gold);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #b0c4de;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 0.8rem;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #8fa3c2;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            .header-container { flex-wrap: wrap; }
            .main-nav ul { gap: 1rem; }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .main-nav a {
                padding: 1rem;
                justify-content: center;
            }
            .container, article {
                padding: 1.5rem;
            }
            .modules {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .site-header, .breadcrumb, .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .my-logo { font-size: 1.8rem; }
        }