* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2c5aa0; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e63946; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #1a2980, #26d0ce);
            color: white;
            padding: 1rem 5%;
            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;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo .uno-text {
            background: linear-gradient(90deg, #ffd166, #ef476f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .search-box {
            display: flex;
            flex-grow: 1;
            max-width: 500px;
            margin: 0 2rem;
        }
        .search-box input {
            flex-grow: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            background: rgba(255,255,255,0.95);
        }
        .search-box button {
            background: #ef476f;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-box button:hover { background: #d43a5c; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffd166;
            transition: width 0.3s;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: white;
            border-radius: 2px;
            transition: 0.3s;
        }
        .breadcrumb {
            padding: 1rem 5%;
            background: rgba(255,255,255,0.9);
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a { color: #555; }
        .main-container {
            display: flex;
            flex-wrap: wrap;
            padding: 2rem 5%;
            gap: 2rem;
            flex: 1;
        }
        .article-content {
            flex: 3;
            min-width: 300px;
            background: white;
            padding: 3rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .sidebar {
            flex: 1;
            min-width: 250px;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a2980;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid #26d0ce;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #2c5aa0;
            margin: 2.5rem 0 1rem;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffd166;
        }
        h3 {
            font-size: 1.6rem;
            color: #e63946;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #444;
            font-weight: 500;
            background: #f0f9ff;
            padding: 1.5rem;
            border-left: 5px solid #26d0ce;
            border-radius: 0 10px 10px 0;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd16630, #ef476f30);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .stats-box {
            background: #1a2980;
            color: white;
            padding: 1.5rem;
            border-radius: 15px;
            margin: 2rem 0;
            text-align: center;
        }
        .stats-box h3 { color: #ffd166; border: none; }
        .featured-img {
            width: 100%;
            border-radius: 15px;
            margin: 2rem 0;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s ease;
        }
        .featured-img:hover { transform: scale(1.01); }
        .content-link {
            font-weight: 600;
            color: #1a2980;
            border-bottom: 2px dotted #26d0ce;
        }
        .link-list {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list h4 { margin-top: 0; }
        .interactive-module {
            background: #fff;
            border-radius: 15px;
            padding: 2rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            margin: 2rem 0;
            border-top: 6px solid #ef476f;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #1a2980;
            margin-bottom: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating-stars i {
            color: #ffd166;
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.3s, transform 0.2s;
        }
        .rating-stars i:hover {
            color: #ffb347;
            transform: scale(1.2);
        }
        textarea, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 15px;
            margin: 10px 0;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        textarea:focus, input:focus {
            outline: none;
            border-color: #26d0ce;
        }
        .btn {
            background: linear-gradient(90deg, #ef476f, #ff9a5a);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 30px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(239, 71, 111, 0.4);
            text-decoration: none;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer {
            background: linear-gradient(90deg, #1a2980, #2c5aa0);
            color: white;
            padding: 3rem 5% 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo a {
            font-size: 2rem;
            font-weight: 900;
            color: white;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            transition: background 0.3s;
        }
        friend-link:hover { background: rgba(255,255,255,0.2); }
        friend-link a { color: #ffd166; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.2);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 992px) {
            .main-nav ul { gap: 1rem; }
            h1 { font-size: 2.4rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; gap: 1rem; }
            .search-box { order: 3; width: 100%; max-width: 100%; margin: 1rem 0 0; }
            .hamburger {
                display: flex;
                position: absolute;
                top: 1.5rem;
                right: 5%;
            }
            .main-nav {
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .main-nav a {
                display: block;
                padding: 0.8rem 0;
                border-bottom: 1px solid rgba(255,255,255,0.2);
            }
            .article-content, .sidebar { padding: 1.5rem; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
        }
        @media (max-width: 480px) {
            .article-content { padding: 1rem; }
            .stats-box { padding: 1rem; }
            .interactive-module { padding: 1.5rem; }
            .footer-container { grid-template-columns: 1fr; }
        }