* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f8f9fa;
            color: #1e293b;
            line-height: 1.8;
            font-size: 16px;
        }
        a {
            color: #d97706;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #b45309;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
            padding: 16px 0;
            border-bottom: 4px solid #d97706;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .3);
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 900;
            letter-spacing: 2px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 10px rgba(217, 119, 6, .3);
            transition: transform .2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #d97706;
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #d97706;
            color: #d97706;
            font-size: 24px;
            padding: 6px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: .2s;
        }
        .nav-toggle:hover {
            background: #d97706;
            color: #0f172a;
        }
        nav {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #f1f5f9;
            font-weight: 600;
            font-size: 15px;
            padding: 6px 10px;
            border-radius: 6px;
            transition: .2s;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 10px;
            right: 10px;
            height: 2px;
            background: #d97706;
            transform: scaleX(0);
            transition: .2s;
        }
        nav a:hover::after {
            transform: scaleX(1);
        }
        nav a:hover {
            background: rgba(217, 119, 6, .15);
            text-decoration: none;
        }
        .nav-active {
            color: #d97706 !important;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 10px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 14px;
        }
        .breadcrumb li+li::before {
            content: '/';
            margin-right: 10px;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb .current {
            color: #d97706;
            font-weight: 600;
        }
        main {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        @media(max-width:992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article h1 {
            font-size: 38px;
            font-weight: 900;
            color: #0f172a;
            margin-bottom: 10px;
            line-height: 1.2;
        }
        article h1 span {
            background: linear-gradient(135deg, #d97706, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            font-size: 14px;
            color: #64748b;
            margin: 12px 0 24px;
            border-bottom: 1px solid #e2e8f0;
            padding-bottom: 12px;
        }
        .meta i {
            margin-right: 6px;
            color: #d97706;
        }
        .last-updated {
            font-weight: 700;
            color: #1e293b;
        }
        article h2 {
            font-size: 28px;
            font-weight: 800;
            color: #0f172a;
            margin: 40px 0 16px;
            border-left: 5px solid #d97706;
            padding-left: 16px;
        }
        article h3 {
            font-size: 22px;
            font-weight: 700;
            color: #1e293b;
            margin: 30px 0 12px;
        }
        article h4 {
            font-size: 18px;
            font-weight: 700;
            color: #334155;
            margin: 20px 0 8px;
        }
        article p {
            margin-bottom: 18px;
            text-align: justify;
        }
        article ul,
        article ol {
            margin: 0 0 20px 30px;
        }
        article li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fffbeb, #fef3c7);
            border-left: 5px solid #d97706;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #b45309;
        }
        .stat-card {
            display: inline-block;
            background: #0f172a;
            color: #fbbf24;
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 14px;
        }
        .featured-image {
            margin: 24px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .12);
        }
        .featured-image img {
            width: 100%;
            min-height: 200px;
            background: #e2e8f0;
        }
        .featured-image figcaption {
            background: #f1f5f9;
            padding: 8px 16px;
            font-size: 13px;
            color: #475569;
            text-align: center;
        }
        .interactive-btn {
            display: inline-block;
            background: #d97706;
            color: #fff;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 16px;
            transition: .2s;
            border: none;
            cursor: pointer;
        }
        .interactive-btn:hover {
            background: #b45309;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(217, 119, 6, .35);
            text-decoration: none;
            color: #fff;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        th {
            background: #0f172a;
            color: #fbbf24;
            padding: 12px 16px;
            text-align: left;
            font-weight: 700;
        }
        td {
            padding: 10px 16px;
            border-bottom: 1px solid #e2e8f0;
        }
        tr:nth-child(even) {
            background: #f8fafc;
        }
        tr:hover td {
            background: #fffbeb;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
            margin-bottom: 24px;
            border: 1px solid #e2e8f0;
        }
        .sidebar-card h3 {
            font-size: 20px;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #d97706;
        }
        .sidebar-link-list {
            list-style: none;
        }
        .sidebar-link-list li {
            padding: 8px 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-link-list li:last-child {
            border-bottom: none;
        }
        .sidebar-link-list a {
            font-weight: 600;
            display: block;
            padding: 4px 0;
        }
        .sidebar-link-list a:hover {
            padding-left: 8px;
        }
        .search-box {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 15px;
            outline: none;
            transition: .2s;
        }
        .search-box input:focus {
            border-color: #d97706;
            box-shadow: 0 0 0 4px rgba(217, 119, 6, .1);
        }
        .search-box button {
            background: #d97706;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0 22px;
            font-size: 18px;
            cursor: pointer;
            transition: .2s;
        }
        .search-box button:hover {
            background: #b45309;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 15px;
            font-family: inherit;
            outline: none;
            transition: .2s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #d97706;
            box-shadow: 0 0 0 4px rgba(217, 119, 6, .1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 4px;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 28px;
            color: #cbd5e1;
            cursor: pointer;
            transition: .2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .btn-submit {
            background: #0f172a;
            color: #fff;
            padding: 12px 32px;
            border: none;
            border-radius: 40px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: .2s;
        }
        .btn-submit:hover {
            background: #1e3a5f;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 23, 42, .25);
        }
        friend-link {
            display: block;
            background: #0f172a;
            color: #f1f5f9;
            padding: 32px 0 20px;
            margin-top: 40px;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            justify-content: center;
        }
        friend-link a {
            color: #fbbf24;
            font-weight: 500;
            font-size: 14px;
            transition: .2s;
        }
        friend-link a:hover {
            color: #fff;
            text-decoration: underline;
        }
        footer {
            background: #0b1120;
            color: #94a3b8;
            padding: 20px 0 30px;
            text-align: center;
            border-top: 1px solid #1e293b;
        }
        footer .copyright {
            font-size: 14px;
        }
        footer .copyright strong {
            color: #fbbf24;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 12px 0 4px;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 10px 14px;
                border-radius: 8px;
                background: rgba(255, 255, 255, .04);
            }
            nav a::after {
                display: none;
            }
            article h1 {
                font-size: 28px;
            }
            article h2 {
                font-size: 22px;
            }
            article h3 {
                font-size: 18px;
            }
            .container {
                padding: 0 14px;
            }
            .meta {
                gap: 8px 16px;
                font-size: 13px;
            }
            .sidebar {
                position: static;
            }
            .my-logo {
                font-size: 22px;
            }
        }
        @media(max-width:480px) {
            article h1 {
                font-size: 24px;
            }
            .stat-card {
                font-size: 12px;
                padding: 2px 10px;
            }
            .search-box {
                flex-wrap: wrap;
            }
            .search-box button {
                width: 100%;
                padding: 12px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #d97706;
            outline-offset: 2px;
        }
        ::selection {
            background: #d97706;
            color: #fff;
        }
        .emoji-big {
            font-size: 1.2em;
        }
        .toc {
            background: #f1f5f9;
            border-radius: 12px;
            padding: 16px 20px;
            margin: 20px 0 28px;
            border: 1px solid #e2e8f0;
        }
        .toc summary {
            font-weight: 800;
            font-size: 18px;
            color: #0f172a;
            cursor: pointer;
        }
        .toc ol {
            margin: 12px 0 0 24px;
        }
        .toc a {
            color: #1e293b;
        }
        .toc a:hover {
            color: #d97706;
        }