*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --secondary: #1a1a2e;
            --accent: #e74c3c;
            --bg: #0d0d1a;
            --bg-card: #16162a;
            --bg-card-hover: #1e1e3a;
            --text: #e8e8f0;
            --text-muted: #9999b0;
            --text-light: #c0c0d0;
            --border: #2a2a4a;
            --gold: #f1c40f;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--gold);
            text-decoration: underline;
            outline: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background: linear-gradient(135deg, var(--secondary) 0%, #0a0a1a 100%);
            border-bottom: 2px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
            gap: 20px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none !important;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: var(--gold);
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border);
            color: var(--text);
            font-size: 1.4rem;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a:focus-visible {
            color: var(--gold);
            border-color: var(--border);
            background: rgba(255, 255, 255, 0.04);
            text-decoration: none;
        }
        @media (max-width: 900px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--secondary);
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 2px solid var(--border);
                box-shadow: var(--shadow);
                gap: 4px;
                z-index: 999;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .header-inner {
                flex-wrap: wrap;
            }
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.02);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb-inner a {
            color: var(--text-muted);
        }
        .breadcrumb-inner a:hover {
            color: var(--accent);
        }
        .breadcrumb-inner span {
            color: var(--text-light);
        }
        .main {
            padding: 40px 0 60px;
        }
        .main .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 1024px) {
            .main .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .content-article {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        @media (max-width: 1024px) {
            .sidebar {
                position: static;
                order: -1;
            }
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            margin-bottom: 24px;
            transition: var(--transition);
        }
        .sidebar-card:hover {
            border-color: var(--accent);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            color: var(--gold);
            border-bottom: 2px solid var(--border);
            padding-bottom: 10px;
        }
        .sidebar-link-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .sidebar-link-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.02);
            font-size: 0.9rem;
            color: var(--text-light);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .sidebar-link-list li a:hover {
            background: rgba(255, 255, 255, 0.06);
            border-left-color: var(--accent);
            color: var(--text);
            text-decoration: none;
        }
        .sidebar-link-list li a i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-top: 1.6em;
            margin-bottom: 0.6em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--gold);
            border-bottom: 2px solid var(--border);
            padding-bottom: 10px;
        }
        h3 {
            font-size: 1.35rem;
            color: var(--text-light);
        }
        h4 {
            font-size: 1.1rem;
            color: var(--text-muted);
        }
        p {
            margin-bottom: 1.2em;
            color: var(--text-light);
        }
        .lead {
            font-size: 1.15rem;
            color: var(--text);
            font-weight: 500;
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin: 24px 0;
        }
        .highlight-box {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid var(--border);
            border-left: 4px solid var(--gold);
        }
        .highlight-box strong {
            color: var(--gold);
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 18px 16px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .image-wrapper {
            margin: 32px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: var(--bg-card);
        }
        .image-wrapper img {
            width: 100%;
            object-fit: cover;
            max-height: 500px;
        }
        .image-wrapper .caption {
            padding: 12px 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-style: italic;
            border-top: 1px solid var(--border);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.3);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--border);
            color: var(--text-light);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            text-decoration: none;
        }
        .pro-con {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 28px 0;
        }
        @media (max-width: 600px) {
            .pro-con {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
        }
        .pro-con ul {
            list-style: none;
            padding: 20px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }
        .pro-con ul li {
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .pro-con ul li i {
            margin-top: 4px;
            flex-shrink: 0;
        }
        .fa-check-circle {
            color: #2ecc71;
        }
        .fa-times-circle {
            color: var(--accent);
        }
        .interactive-section {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 32px;
            margin: 40px 0;
            border: 1px solid var(--border);
        }
        .interactive-section h2 {
            margin-top: 0;
            border-bottom: none;
            padding-bottom: 0;
        }
        .interactive-section .sub {
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 4px;
            color: var(--text-light);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--border);
            background: rgba(255, 255, 255, 0.04);
            color: var(--text);
            font-size: 1rem;
            font-family: var(--font);
            transition: var(--transition);
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
            outline: none;
            background: rgba(255, 255, 255, 0.06);
        }
        .form-group textarea {
            min-height: 100px;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: var(--border);
            transition: var(--transition);
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--gold);
        }
        .footer {
            background: var(--secondary);
            border-top: 2px solid var(--border);
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer h4 {
            color: var(--gold);
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid var(--border);
            padding-bottom: 10px;
            margin-bottom: 16px;
        }
        .footer p,
        .footer a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            margin-top: 16px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        friend-link {
            display: block;
            margin-top: 12px;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 20px;
            font-size: 0.85rem;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        friend-link a:hover {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.08);
            text-decoration: none;
        }
        @media (max-width: 480px) {
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .interactive-section {
                padding: 20px 16px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .container {
                padding: 0 14px;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent);
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        th {
            background: rgba(255, 255, 255, 0.04);
            color: var(--gold);
            font-weight: 600;
        }
        td {
            color: var(--text-light);
        }
        tr:last-child td {
            border-bottom: none;
        }
        .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(231, 76, 60, 0.15);
            color: var(--accent);
            border: 1px solid rgba(231, 76, 60, 0.2);
        }