* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9ff;
            background-image: linear-gradient(135deg, #f5f7fa 0%, #e4e8ff 100%);
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #ff3366;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 51, 153, 0.1);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .highlight {
            background: linear-gradient(120deg, #ffeb3b 0%, #ffeb3b 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 90%;
        }
        .site-header {
            background: linear-gradient(90deg, #1a237e 0%, #311b92 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffde59;
            text-shadow: 2px 2px 0 #ff3366, 4px 4px 0 rgba(0,0,0,0.1);
            letter-spacing: 1px;
        }
        .my-logo a:hover {
            color: #fff;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e0e0ff;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 30px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #311b92;
            padding: 1rem;
            border-radius: 0 0 12px 12px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: #e0e0ff;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f0f4ff;
            border-bottom: 1px solid #e0e6ff;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #888;
        }
        .breadcrumb a {
            color: #555;
        }
        .search-section {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            padding: 3rem 0;
            text-align: center;
            border-radius: 0 0 30px 30px;
            margin-bottom: 3rem;
        }
        .search-box {
            max-width: 700px;
            margin: 2rem auto 0;
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 1.2rem 1.5rem;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-box button {
            background: #ff3366;
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 2.5rem;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #ff0040;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 20px;
            box-shadow: 0 15px 50px rgba(0, 51, 153, 0.08);
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px dashed #e0e6ff;
        }
        h1 {
            font-size: 3rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: #311b92;
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffde59;
        }
        h3 {
            font-size: 1.7rem;
            color: #4a148c;
            margin: 2.5rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #6a1b9a;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            color: #555;
            font-weight: 500;
            padding: 1.5rem;
            background: #f0f7ff;
            border-left: 5px solid #2575fc;
            border-radius: 0 12px 12px 0;
        }
        .feature-img {
            margin: 2.5rem auto;
            max-width: 900px;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 51, 153, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #1a237e;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffde59;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .link-list li::before {
            content: "➤";
            position: absolute;
            left: 0;
            color: #ff3366;
        }
        .interaction-module {
            background: #f9fbff;
            border: 2px solid #e0e6ff;
            border-radius: 15px;
            padding: 2rem;
            margin: 3rem 0;
        }
        .interaction-module h3 {
            margin-top: 0;
            color: #1a237e;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffcc00;
        }
        .rating-stars i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 1px solid #ccc;
            border-radius: 10px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #6a11cb;
            outline: none;
        }
        .btn-submit {
            background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .btn-submit:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(106, 17, 203, 0.4);
        }
        .site-footer {
            background: linear-gradient(90deg, #1a237e 0%, #311b92 100%);
            color: #e0e0ff;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffde59;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            color: #a0a8ff;
            font-size: 1rem;
        }
        friend-link:hover {
            color: white;
            padding-left: 5px;
            transition: all 0.3s;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .main-nav ul { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            h3 { font-size: 1.5rem; }
            article { padding: 2rem; }
            .sidebar { position: static; }
            .search-box { flex-direction: column; }
            .search-box input { border-radius: 50px; margin-bottom: 1rem; }
            .search-box button { border-radius: 50px; padding: 1rem; }
        }