* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #2a3b8f 0%, #1a5f7a 100%);
            color: white;
            padding: 1rem 5%;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #fff;
            text-decoration: none;
            font-family: 'Comic Sans MS', cursive, sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #ffde59;
        }
        .my-logo i { margin-right: 10px; }
        .breadcrumb {
            padding: 0.8rem 5%;
            background-color: #e9ecef;
            font-size: 0.9rem;
            color: #555;
        }
        .breadcrumb a {
            color: #2a3b8f;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-nav { display: flex; align-items: center; }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-list a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
            transition: all 0.3s ease;
        }
        .nav-list a:hover,
        .nav-list a.active {
            color: #ffde59;
            border-bottom-color: #ffde59;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 5%;
            max-width: 1600px;
            margin: 0 auto;
        }
        main { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        aside { background: #f0f7ff; padding: 1.5rem; border-radius: 12px; height: fit-content; }
        h1 {
            font-size: 2.8rem;
            color: #2a3b8f;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #ffde59;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #1a5f7a;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeaea;
        }
        h3 {
            font-size: 1.6rem;
            color: #2a3b8f;
            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: #1a5f7a;
            font-weight: 500;
            padding: 1rem;
            background: #f0f7ff;
            border-radius: 8px;
            border-left: 4px solid #2a3b8f;
        }
        .highlight {
            background: linear-gradient(120deg, #ffde5980 0%, #ffde5980 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        b, strong { color: #1a5f7a; }
        em { color: #2a3b8f; }
        a.content-link {
            color: #1a5f7a;
            text-decoration: none;
            border-bottom: 1px dotted #1a5f7a;
            transition: all 0.2s;
        }
        a.content-link:hover {
            color: #ff6b6b;
            border-bottom: 1px solid #ff6b6b;
        }
        .feature-box {
            background: #f8f9fa;
            border: 1px solid #dee2e6;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        }
        .feature-title { display: flex; align-items: center; gap: 10px; color: #2a3b8f; }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #2a3b8f;
            outline: none;
            box-shadow: 0 0 0 3px rgba(42, 59, 143, 0.1);
        }
        .btn {
            background: linear-gradient(to right, #2a3b8f, #1a5f7a);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn:hover {
            background: linear-gradient(to right, #1a5f7a, #2a3b8f);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(42, 59, 143, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ffc107;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .star-rating span:hover ~ span { color: #e4e5e9; }
        .article-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 5px solid white;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-title {
            font-size: 1.4rem;
            color: #2a3b8f;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffde59;
            margin-bottom: 1.2rem;
        }
        .site-footer {
            background: #1c1e2f;
            color: #ddd;
            padding: 3rem 5% 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-logo {
            font-size: 2rem;
            color: #ffde59;
            font-weight: 900;
            margin-bottom: 1rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        friend-link a {
            background: #2a3b8f;
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            text-decoration: none;
            transition: background 0.3s;
        }
        friend-link a:hover { background: #ffde59; color: #333; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .container { grid-template-columns: 1fr; }
            .nav-list {
                position: fixed;
                top: 80px;
                left: 0;
                background: #2a3b8f;
                flex-direction: column;
                width: 100%;
                padding: 2rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
                z-index: 999;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .nav-list.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .header-container, .container, .site-footer { padding-left: 1rem; padding-right: 1rem; }
            main { padding: 1.5rem; }
            h1 { font-size: 1.9rem; }
            .lead { font-size: 1.1rem; }
        }
        .text-center { text-align: center; }
        .mt-3 { margin-top: 3rem; }
        .mb-3 { margin-bottom: 3rem; }
        .last-updated {
            font-size: 0.9rem;
            color: #777;
            font-style: italic;
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #ccc;
        }