* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            background: #f0f8ff;
            color: #1e293b;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #1a6dd4;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0b3d7a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b2b4f 0%, #1a6dd4 100%);
            color: #fff;
            padding: 0 0 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 6px 0;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffd966;
            text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.25);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            font-size: 2rem;
            color: #fff;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #ffe28a;
            text-decoration: none;
        }
        .my-logo span {
            font-size: 0.7rem;
            font-weight: 400;
            color: #c9e2ff;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 8px 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e3efff;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 30px;
            transition: 0.2s;
            font-size: 0.95rem;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #ffd966;
            color: #0b2b4f;
        }
        .breadcrumb {
            padding: 6px 0 2px 0;
            font-size: 0.85rem;
            color: #c9e2ff;
            display: flex;
            flex-wrap: wrap;
            gap: 4px 8px;
        }
        .breadcrumb a {
            color: #b8d6ff;
        }
        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: #8ab4f8;
        }
        .main-content {
            padding: 30px 0 50px;
        }
        .article-header {
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b2b4f;
            line-height: 1.2;
            margin-bottom: 10px;
        }
        .article-header .meta {
            color: #5a6c7d;
            font-size: 0.95rem;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
        }
        .article-header .meta i {
            margin-right: 6px;
            color: #1a6dd4;
        }
        .last-updated {
            background: #e6f0ff;
            padding: 4px 14px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.85rem;
        }
        .featured-image {
            margin: 24px 0 30px;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .content-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0b2b4f;
            margin: 40px 0 14px 0;
            padding-bottom: 6px;
            border-bottom: 3px solid #d0e2ff;
        }
        .content-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1a4b7a;
            margin: 28px 0 10px 0;
        }
        .content-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2c5f8a;
            margin: 20px 0 8px 0;
        }
        .content-body p {
            margin: 0 0 18px 0;
            text-align: justify;
        }
        .content-body ul,
        .content-body ol {
            margin: 0 0 20px 30px;
        }
        .content-body li {
            margin-bottom: 8px;
        }
        .content-body .highlight {
            background: #fef9e7;
            padding: 18px 22px;
            border-left: 5px solid #ffb347;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .content-body .highlight i {
            color: #ffb347;
            margin-right: 8px;
        }
        .content-body .stat-box {
            background: #eaf3ff;
            padding: 16px 20px;
            border-radius: 12px;
            margin: 16px 0;
            display: inline-block;
            font-weight: 600;
            color: #0b2b4f;
        }
        .inline-img {
            margin: 24px 0;
            border-radius: 14px;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 20px 18px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            margin-bottom: 24px;
            border: 1px solid #e6edf5;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            color: #0b2b4f;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 4px 0;
        }
        .sidebar-card li a i {
            width: 20px;
            color: #1a6dd4;
        }
        .sidebar-card li a:hover {
            color: #0b2b4f;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #d0dcec;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
            background: #f7faff;
        }
        .search-form input:focus {
            border-color: #1a6dd4;
            background: #fff;
        }
        .search-form button {
            background: #1a6dd4;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0 18px;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #0b3d7a;
        }
        .comment-section,
        .rating-section {
            margin-top: 40px;
            background: #fff;
            border-radius: 16px;
            padding: 24px 28px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6edf5;
        }
        .comment-section h2,
        .rating-section h2 {
            font-size: 1.5rem;
            color: #0b2b4f;
            margin-bottom: 16px;
            border-bottom: 2px solid #d0e2ff;
            padding-bottom: 8px;
        }
        .comment-form textarea,
        .comment-form input,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #d0dcec;
            border-radius: 10px;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-family: inherit;
            transition: 0.2s;
            background: #f7faff;
        }
        .comment-form textarea:focus,
        .comment-form input:focus,
        .rating-form select:focus {
            border-color: #1a6dd4;
            background: #fff;
            outline: none;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form button,
        .rating-form button {
            background: #1a6dd4;
            color: #fff;
            border: none;
            padding: 10px 30px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #0b3d7a;
            transform: translateY(-1px);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ffb347;
            margin-bottom: 12px;
        }
        .rating-stars i {
            cursor: pointer;
            transition: 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.15);
        }
        .site-footer {
            background: #0b2b4f;
            color: #c9e2ff;
            padding: 30px 0 20px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        .site-footer h4 {
            color: #ffd966;
            margin-bottom: 12px;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #b8d6ff;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
            font-size: 0.95rem;
        }
        .friend-link::before {
            content: '🔗 ';
        }
        .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #1a4b7a;
            padding-top: 16px;
            margin-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #8ab4f8;
        }
        .copyright strong {
            color: #ffd966;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 12px 0 6px 0;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 8px 12px;
                border-radius: 8px;
                width: 100%;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .content-body h2 {
                font-size: 1.5rem;
            }
            .content-body h3 {
                font-size: 1.2rem;
            }
            .comment-section,
            .rating-section {
                padding: 16px 18px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                padding: 10px;
            }
        }
        .text-muted {
            color: #5a6c7d;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .flex {
            display: flex;
        }
        .gap-2 {
            gap: 12px;
        }
        .items-center {
            align-items: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }