*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --cf-red: #d32f2f;
            --cf-dark: #1a1a2e;
            --cf-darker: #12121f;
            --cf-orange: #ff6b35;
            --cf-light: #f5f5f5;
            --cf-gray: #9e9e9e;
            --cf-blue: #2196f3;
            --cf-gold: #ffc107;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--cf-darker);
            color: #e8e8e8;
            line-height: 1.75;
            font-size: 16px;
        }
        a {
            color: var(--cf-orange);
            text-decoration: none;
            transition: color .25s ease, border-bottom .25s ease;
        }
        a:hover {
            color: #ff9e70;
            border-bottom: 1px dotted var(--cf-orange);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 90%;
            max-width: 1320px;
            margin-inline: auto;
        }
        .site-header {
            background: linear-gradient(145deg, var(--cf-dark) 0%, #0b0b1a 100%);
            border-bottom: 3px solid var(--cf-red);
            position: sticky;
            top: 0;
            z-index: 1200;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 0;
            gap: 12px;
        }
        .my-logo {
            font-size: 34px;
            font-weight: 900;
            letter-spacing: -1px;
            text-transform: uppercase;
        }
        .my-logo a {
            color: #fff;
            border: none;
            background: linear-gradient(135deg, var(--cf-red) 0%, var(--cf-orange) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            font-family: 'Arial Black', 'Segoe UI Black', sans-serif;
        }
        .my-logo a:hover {
            border: none;
            filter: drop-shadow(0 0 8px rgba(255, 107, 53, .4));
        }
        .site-nav {
            display: flex;
            gap: 20px;
            align-items: center;
            flex-wrap: wrap;
        }
        .site-nav a {
            color: #ccc;
            font-weight: 600;
            font-size: 14px;
            padding: 8px 9px;
            border-radius: 6px;
            transition: all .2s;
        }
        .site-nav a i {
            margin-right: 5px;
        }
        .site-nav a:hover {
            color: var(--cf-orange);
            background: rgba(255, 255, 255, .06);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 28px;
            cursor: pointer;
        }
        .breadcrumb {
            background: #111;
            padding: 8px 0;
            font-size: 13px;
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }
        .breadcrumb .container {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            color: #aaa;
        }
        .breadcrumb i {
            font-size: 10px;
            margin-inline: 4px;
            color: #666;
        }
        main {
            padding: 28px 0 60px;
            background: #14142a;
        }
        .hero-area {
            background: radial-gradient(ellipse at top, #2a1f3d 0%, var(--cf-darker) 80%);
            padding: 30px 0 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            text-align: center;
        }
        .hero-area h1 {
            font-size: clamp(1.8rem, 5vw, 3.6rem);
            font-weight: 900;
            color: #fff;
            text-shadow: 3px 3px 0 rgba(0, 0, 0, .5), 0 0 20px rgba(255, 80, 0, .2);
            max-width: 1100px;
            margin-inline: auto;
            line-height: 1.2;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 20px;
            color: #b8b8c0;
            font-size: 14px;
        }
        .hero-meta i {
            color: var(--cf-orange);
            margin-right: 6px;
        }
        .updated-badge {
            background: rgba(255, 110, 0, .15);
            border: 1px solid var(--cf-orange);
            padding: 4px 14px;
            border-radius: 25px;
            font-weight: 700;
            display: inline-block;
            margin-top: 15px;
        }
        .layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 40px;
            margin-top: 30px;
        }
        .toc-wrap {
            position: sticky;
            top: 100px;
            align-self: start;
            background: #1c1c36;
            border-radius: 12px;
            padding: 20px;
            border-left: 4px solid var(--cf-red);
            max-height: 80vh;
            overflow-y: auto;
        }
        .toc-title {
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            padding-bottom: 10px;
        }
        .toc-wrap ul {
            list-style: none;
            padding-left: 0;
        }
        .toc-wrap ul li {
            padding: 5px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }
        .toc-wrap a {
            font-size: 14px;
            font-weight: 500;
            color: #bbc;
        }
        .toc-wrap a:hover {
            color: var(--cf-orange);
        }
        .article-body {
            background: #17172e;
            padding: 30px;
            border-radius: 14px;
            box-shadow: 0 0 30px rgba(0, 0, 0, .35);
            border: 1px solid rgba(255, 255, 255, .05);
        }
        .article-body h2 {
            color: #fff;
            font-size: 1.9rem;
            font-weight: 800;
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #333;
            position: relative;
        }
        .article-body h2:before {
            content: "";
            display: inline-block;
            width: 14px;
            height: 14px;
            margin-right: 12px;
            background: var(--cf-red);
            clip-path: polygon(100% 0, 100% 100%, 0 50%);
        }
        .article-body h3 {
            color: var(--cf-orange);
            font-size: 1.4rem;
            font-weight: 700;
            margin: 35px 0 14px;
            padding-left: 10px;
            border-left: 4px solid var(--cf-orange);
        }
        .article-body h4 {
            color: #ddd;
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 10px;
        }
        .article-body p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 22px;
            padding-left: 28px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            background: rgba(255, 255, 255, .04);
            border-left: 6px solid var(--cf-gold);
            padding: 20px 24px;
            margin: 28px 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #ceccbb;
        }
        .highlight-box {
            background: linear-gradient(145deg, rgba(255, 150, 60, .12), rgba(200, 30, 30, .08));
            border: 1px solid rgba(255, 130, 50, .3);
            border-radius: 12px;
            padding: 18px 22px;
            margin: 25px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: auto 1fr;
            gap: 12px 20px;
            background: #10101d;
            padding: 20px 24px;
            border-radius: 14px;
            border: 1px solid #222;
        }
        .stat-grid .stat-label {
            font-weight: 700;
            color: var(--cf-orange);
        }
        .stat-grid .stat-value {
            color: #cfc;
            font-weight: 500;
        }
        .callout {
            background: #ff3d2e0d;
            border: 1px solid var(--cf-red);
            padding: 16px;
            border-radius: 12px;
        }
        .feature-img {
            border-radius: 16px;
            margin: 28px 0;
            box-shadow: 0 12px 30px rgba(0, 0, 0, .5);
            width: 100%;
            object-fit: cover;
            max-height: 480px;
            border: 1px solid rgba(255, 255, 255, .15);
        }
        table.cf-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 35px;
            background: #10101e;
            border-radius: 10px;
            overflow: hidden;
        }
        .cf-table th {
            background: var(--cf-red);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 700;
        }
        .cf-table td {
            padding: 10px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .cf-table tr:hover td {
            background: rgba(255, 255, 255, .05);
        }
        .interactive-modules {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
            gap: 24px;
            margin: 50px 0 0;
            padding: 30px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .1);
        }
        .module-card {
            background: #1b1b35;
            padding: 20px;
            border-radius: 14px;
            border: 1px solid #2a2a4a;
        }
        .module-card h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: #fff;
            border-left: none;
            padding-left: 0;
        }
        .module-card input,
        .module-card textarea,
        .module-card select {
            width: 100%;
            padding: 12px;
            border: 1px solid #333;
            background: #111;
            color: #fff;
            border-radius: 8px;
            margin-bottom: 12px;
            font-family: inherit;
        }
        .module-card button {
            width: 100%;
            padding: 12px;
            background: var(--cf-red);
            border: none;
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            cursor: pointer;
            transition: background .2s, transform .2s;
        }
        .module-card button:hover {
            background: var(--cf-orange);
            transform: scale(1.01);
        }
        .site-footer {
            background: #0a0a18;
            padding: 40px 0 20px;
            border-top: 2px solid var(--cf-red);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            margin-bottom: 20px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 15px;
        }
        friend-link {
            display: block;
            background: #14142e;
            padding: 18px;
            border-radius: 12px;
            border: 1px solid #2a2a4a;
            font-size: 15px;
            line-height: 2;
        }
        friend-link a {
            margin: 0 10px 0 0;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid #222;
            padding-top: 22px;
            color: #888;
            font-size: 14px;
        }
        .copyright a {
            color: var(--cf-orange);
        }
        @media (max-width: 992px) {
            .layout {
                grid-template-columns: 1fr;
            }
            .toc-wrap {
                position: static;
                max-height: 280px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .site-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 10px 0;
                background: #16162e;
                border-radius: 0 0 14px 14px;
            }
            .site-nav.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
                margin-left: auto;
            }
            .site-nav a {
                width: 100%;
                text-align: center;
            }
            .article-body {
                padding: 16px;
            }
            .hero-meta {
                font-size: 12px;
            }
        }
        .toc-wrap::-webkit-scrollbar {
            width: 5px;
        }
        .toc-wrap::-webkit-scrollbar-track {
            background: #111;
        }
        .toc-wrap::-webkit-scrollbar-thumb {
            background: var(--cf-red);
            border-radius: 20px;
        }
        .back-to-top {
            position: fixed;
            bottom: 25px;
            right: 25px;
            background: var(--cf-red);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 6px 20px rgba(211, 47, 47, 0.5);
            z-index: 1100;
            transition: transform .3s;
        }
        .back-to-top:hover {
            transform: translateY(-5px);
            background: var(--cf-orange);
        }