*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #0a66c2;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #064079;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: #0b1c2e;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.4em;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #f5a623;
            padding-left: 16px;
        }
        h3 {
            font-size: 1.3rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2em;
            font-size: 1.05rem;
        }
        ul,
        ol {
            margin: 0.8em 0 1.4em 1.8em;
        }
        li {
            margin-bottom: 0.4em;
        }
        strong {
            color: #0b2b44;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
            padding: 20px 24px 40px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #e9edf2;
            position: relative;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0a66c2, #f5a623);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e2a3a;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: #eef3f9;
        }
        nav#main-nav {
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav#main-nav a {
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 8px;
            color: #1e2a3a;
        }
        nav#main-nav a:hover {
            background: #e6edf6;
            text-decoration: none;
            color: #0a66c2;
        }
        nav#main-nav a i {
            margin-right: 6px;
            color: #f5a623;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 14px 0 8px;
            margin: 0;
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .breadcrumb li {
            margin: 0 4px 0 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px 0 4px;
            color: #aab5c2;
        }
        .breadcrumb a {
            color: #0a66c2;
        }
        .breadcrumb .active {
            color: #5a6a7a;
            font-weight: 500;
        }
        .search-wrap {
            background: #f0f4fa;
            border-radius: 60px;
            padding: 4px 4px 4px 20px;
            display: flex;
            align-items: center;
            max-width: 480px;
            margin: 20px 0 28px;
            border: 1px solid #dce3ec;
        }
        .search-wrap i {
            color: #7a8a9a;
            font-size: 1.1rem;
        }
        .search-wrap input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 12px 12px;
            font-size: 1rem;
            outline: none;
            min-width: 0;
        }
        .search-wrap button {
            background: #0a66c2;
            color: #fff;
            border: none;
            border-radius: 60px;
            padding: 10px 26px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-wrap button:hover {
            background: #064e94;
        }
        .search-wrap button i {
            color: #fff;
            margin-right: 6px;
        }
        .feature-image {
            margin: 24px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .feature-image figcaption {
            background: #f7faff;
            padding: 12px 18px;
            font-size: 0.9rem;
            color: #3a4a5a;
            border-radius: 0 0 12px 12px;
            border-left: 4px solid #f5a623;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        @media (min-width: 992px) {
            .content-grid {
                grid-template-columns: 2fr 1fr;
            }
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            background: #f8faff;
            border-radius: 20px;
            padding: 20px 18px;
            border: 1px solid #e6edf6;
            height: fit-content;
            position: sticky;
            top: 20px;
        }
        .sidebar h3 {
            margin-top: 0.2em;
            font-size: 1.2rem;
            border-bottom: 2px solid #f5a623;
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
            margin: 12px 0 0;
            padding: 0;
        }
        .sidebar li {
            padding: 9px 0;
            border-bottom: 1px solid #eef3f9;
        }
        .sidebar li a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar li a i {
            color: #f5a623;
            width: 18px;
            font-size: 0.9rem;
        }
        .feedback-section {
            background: #f7faff;
            border-radius: 20px;
            padding: 28px 24px;
            margin-top: 48px;
            border: 1px solid #e0e9f2;
        }
        .feedback-section h2 {
            border-left-color: #0a66c2;
            margin-top: 0;
        }
        .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 16px;
        }
        .form-group {
            flex: 1 1 220px;
            min-width: 0;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 4px;
            color: #1e2a3a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid #d0dae6;
            border-radius: 12px;
            font-size: 1rem;
            background: #fff;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #0a66c2;
            outline: none;
            box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d0dae6;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f5a623;
        }
        .btn-submit {
            background: #0a66c2;
            color: #fff;
            border: none;
            border-radius: 60px;
            padding: 14px 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-submit:hover {
            background: #064e94;
            transform: translateY(-1px);
        }
        .btn-submit i {
            font-size: 1.1rem;
        }
        footer {
            margin-top: 56px;
            padding-top: 28px;
            border-top: 2px solid #e9edf2;
        }
        friend-link {
            display: block;
            background: #f4f7fc;
            border-radius: 16px;
            padding: 20px 22px;
            margin-bottom: 20px;
            font-style: normal;
        }
        friend-link::before {
            content: "🔗 Friendly Links";
            display: block;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 12px;
            color: #0b2b44;
        }
        friend-link a {
            display: inline-block;
            margin: 6px 16px 6px 0;
            padding: 4px 0;
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            padding: 18px 0 10px;
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .copyright strong {
            color: #0b2b44;
        }
        .last-update {
            display: inline-block;
            background: #eef3f9;
            padding: 4px 16px;
            border-radius: 60px;
            font-size: 0.85rem;
            color: #3a5a7a;
            margin-bottom: 20px;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 12px 14px 32px;
                border-radius: 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
                padding-left: 12px;
            }
            h3 {
                font-size: 1.15rem;
            }
            header {
                flex-wrap: nowrap;
            }
            .nav-toggle {
                display: block;
            }
            nav#main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px 20px 24px;
                border-radius: 0 0 20px 20px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
                z-index: 100;
                border: 1px solid #e9edf2;
            }
            nav#main-nav.open {
                display: flex;
            }
            nav#main-nav a {
                padding: 10px 12px;
                font-size: 1rem;
                border-bottom: 1px solid #f0f4fa;
            }
            nav#main-nav a:last-child {
                border-bottom: none;
            }
            .search-wrap {
                max-width: 100%;
                flex-wrap: wrap;
                border-radius: 30px;
                padding: 4px 4px 4px 16px;
            }
            .search-wrap input {
                padding: 10px 8px;
                font-size: 0.95rem;
            }
            .search-wrap button {
                padding: 8px 18px;
                font-size: 0.85rem;
            }
            .feedback-section {
                padding: 20px 16px;
            }
            .form-row {
                flex-direction: column;
                gap: 12px;
            }
            .star-rating {
                font-size: 1.5rem;
            }
            .sidebar {
                position: static;
                margin-top: 28px;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 8px 10px 24px;
            }
            h1 {
                font-size: 1.35rem;
            }
            h2 {
                font-size: 1.15rem;
            }
            p {
                font-size: 0.98rem;
            }
            .feature-image figcaption {
                font-size: 0.8rem;
                padding: 8px 12px;
            }
        }
        .highlight-box {
            background: #fef8ee;
            border-left: 6px solid #f5a623;
            padding: 18px 22px;
            border-radius: 14px;
            margin: 24px 0;
        }
        .highlight-box i {
            color: #f5a623;
            margin-right: 8px;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 28px;
            font-size: 0.98rem;
            border-radius: 12px;
            overflow: hidden;
        }
        .data-table th {
            background: #0b2b44;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 10px 16px;
            border-bottom: 1px solid #e6edf6;
        }
        .data-table tr:nth-child(even) {
            background: #f8faff;
        }
        .data-table tr:hover {
            background: #eef5fd;
        }
        @media (max-width: 600px) {
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }
        }
        .tag {
            display: inline-block;
            background: #e6edf6;
            padding: 2px 14px;
            border-radius: 60px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #0a66c2;
            margin-right: 4px;
        }
        .fa,
        .fas,
        .far,
        .fab,
        .fa-solid {
            font-family: 'Font Awesome 6 Free', 'Font Awesome 6 Brands';
        }