* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(to right, #1a3a8f, #2a5bd7);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #ffde59;
            text-decoration: none;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
            transition: transform 0.3s;
        }
        .my-logo a:hover { transform: scale(1.05); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        .main-nav a:hover,
        .main-nav a:focus { background: rgba(255, 255, 255, 0.15); }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e9f1fa;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #2a5bd7;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a3a8f;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffde59;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a5bd7;
            margin: 2.5rem 0 1rem;
            padding-left: 0.75rem;
            border-left: 5px solid #ffde59;
        }
        h3 {
            font-size: 1.6rem;
            color: #3a7af0;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.75rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: #444;
            background: #f0f7ff;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #2a5bd7;
        }
        .highlight {
            background: linear-gradient(120deg, #ffde5977 0%, #ffde5977 100%);
            padding: 0.2rem 0.4rem;
            border-radius: 3px;
            font-weight: 600;
        }
        em { color: #d84315; }
        strong { color: #1a3a8f; }
        .content-link {
            color: #e65100;
            font-weight: 600;
            text-decoration: underline wavy #ffab40;
            transition: color 0.3s;
        }
        .content-link:hover {
            color: #1a3a8f;
            text-decoration: underline solid;
        }
        .article-img {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            max-width: 800px;
        }
        .article-img img { transition: transform 0.5s; }
        .article-img:hover img { transform: scale(1.03); }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .widget h3 {
            font-size: 1.4rem;
            color: #1a3a8f;
            margin-top: 0;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #2a5bd7;
            outline: none;
        }
        textarea.form-control { min-height: 120px; resize: vertical; }
        .btn {
            background: linear-gradient(to right, #2a5bd7, #1a3a8f);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn:hover {
            background: linear-gradient(to right, #1a3a8f, #0d2a66);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(42, 91, 215, 0.3);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star.active,
        .star:hover { color: #ffc107; }
        .comment {
            border-bottom: 1px solid #eee;
            padding: 1.2rem 0;
        }
        .comment:last-child { border-bottom: none; }
        .comment-author {
            font-weight: bold;
            color: #1a3a8f;
        }
        .comment-date {
            font-size: 0.9rem;
            color: #777;
            margin-left: 1rem;
        }
        .site-footer {
            background: #1a3a8f;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: #ffde59;
            text-decoration: none;
            transition: padding-left 0.3s;
        }
        friend-link a:hover {
            padding-left: 0.5rem;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: #1a3a8f;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
            }
            .main-nav ul {
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
            }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .article-content { padding: 1.5rem; }
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-3 { margin-top: 1.5rem; }
        .last-updated {
            font-style: italic;
            color: #777;
            font-size: 0.95rem;
            text-align: right;
            margin-top: 2rem;
        }