* { 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: #222;
            background: linear-gradient(135deg, #f9f9f9 0%, #f0f8ff 100%);
            background-attachment: fixed;
            padding-top: 80px;
        }
        a { color: #e63946; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #a81c2c; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            position: fixed;
            top: 0; left: 0; width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            padding: 0 5%;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffd166;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
            font-family: 'Trebuchet MS', sans-serif;
        }
        .my-logo:hover { color: #fff; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
        }
        .main-nav a:hover { color: #ffd166; }
        .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;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        #nav-toggle { display: none; }
        .breadcrumb {
            background: #e9f5ff;
            padding: 12px 5%;
            font-size: 0.9rem;
            border-bottom: 1px solid #cce0ff;
        }
        .breadcrumb a { color: #1e3c72; }
        .breadcrumb a:hover { text-decoration: underline; }
        .container {
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .container { grid-template-columns: 1fr; }
        }
        article {
            background: white;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .article-header { margin-bottom: 40px; }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta {
            color: #666;
            font-size: 0.95rem;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px dashed #ccc;
        }
        .update { color: #e63946; font-weight: 600; }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #ffd166;
        }
        h3 {
            font-size: 1.6rem;
            color: #1e3c72;
            margin: 35px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: #2a5298;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd16622 0%, #ffd16644 100%);
            border-left: 5px solid #ffd166;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 15px;
            margin: 30px 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #555;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .related-links {
            background: #f1f8ff;
            padding: 25px;
            border-radius: 15px;
            margin: 40px 0;
        }
        .related-links h3 { margin-top: 0; }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            list-style-position: inside;
        }
        .related-links li { margin-bottom: 10px; }
        aside {
            background: white;
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .widget {
            margin-bottom: 40px;
        }
        .widget h3 {
            font-size: 1.4rem;
            color: #1e3c72;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffd166;
        }
        .search-box {
            display: flex;
            margin-bottom: 30px;
        }
        .search-box input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #2a5298;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-box button {
            background: #2a5298;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-box button:hover { background: #1e3c72; }
        .rating-widget, .comment-widget {
            background: #f9f9f9;
            padding: 25px;
            border-radius: 15px;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover, .star.active { color: #ffd700; }
        .rating-form textarea, .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: 8px;
            margin: 15px 0;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            min-height: 120px;
        }
        .btn {
            background: linear-gradient(90deg, #e63946 0%, #d62839 100%);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            transition: transform 0.3s, box-shadow 0.3s;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(230, 57, 70, 0.4);
        }
        footer {
            background: #1e3c72;
            color: #fff;
            padding: 50px 5% 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: #ffd166;
            font-size: 1.4rem;
            margin-bottom: 25px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 15px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 0.9rem;
            transition: background 0.3s;
        }
        friend-link:hover { background: rgba(255, 255, 255, 0.2); }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            body { padding-top: 70px; }
            .hamburger { display: block; }
            .main-nav ul {
                position: fixed;
                top: 70px; left: 0;
                width: 100%;
                background: #2a5298;
                flex-direction: column;
                padding: 20px;
                gap: 0;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
            }
            .main-nav li { margin: 15px 0; }
            #nav-toggle:checked ~ .main-nav ul {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            article, aside { padding: 25px; }
            .container { gap: 30px; }
        }