* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #0b0d11;
            color: #e8e6e3;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #f5c542;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover,
        a:focus {
            color: #ffdd77;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #13171f;
            border-radius: 24px;
            padding: 20px 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
        }
        .my-logo {
            font-size: 2.4rem;
            font-weight: 900;
            letter-spacing: 2px;
            background: linear-gradient(135deg, #f5c542, #e6a800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
            -webkit-text-fill-color: transparent;
        }
        .header-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 1px solid #2a2f3a;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #f5c542;
            color: #f5c542;
            font-size: 1.8rem;
            padding: 4px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: #f5c54222;
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            font-weight: 500;
        }
        .nav-menu li a {
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            font-size: 1.05rem;
        }
        .nav-menu li a:hover {
            border-bottom-color: #f5c542;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.9rem;
            padding: 12px 0 8px;
            color: #9aa0ab;
        }
        .breadcrumb a {
            color: #cbd0da;
        }
        .breadcrumb .sep {
            color: #556;
        }
        .search-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 20px 0 28px;
            background: #1e232e;
            padding: 12px 18px;
            border-radius: 60px;
            align-items: center;
        }
        .search-bar i {
            color: #f5c542;
            font-size: 1.2rem;
        }
        .search-bar input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 10px 6px;
            color: #fff;
            font-size: 1rem;
            outline: none;
            min-width: 140px;
        }
        .search-bar input::placeholder {
            color: #7a8291;
        }
        .search-bar button {
            background: #f5c542;
            border: none;
            padding: 10px 26px;
            border-radius: 40px;
            font-weight: 700;
            color: #0b0d11;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .search-bar button:hover {
            background: #ffdd77;
            transform: scale(1.02);
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin: 12px 0 20px;
            background: linear-gradient(135deg, #f5c542, #e6a800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #f5c54255;
            color: #f5c542;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #e8d5a3;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #cfc1a2;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
        }
        .hero-img {
            margin: 28px 0 32px;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
        }
        .highlight {
            background: #f5c54218;
            padding: 4px 12px;
            border-left: 4px solid #f5c542;
            border-radius: 0 8px 8px 0;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 30px 0;
        }
        .stat-card {
            background: #1a202c;
            padding: 20px 24px;
            border-radius: 16px;
            border: 1px solid #2a2f3a;
            transition: 0.2s;
        }
        .stat-card:hover {
            border-color: #f5c54266;
            transform: translateY(-3px);
        }
        .stat-card i {
            color: #f5c542;
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .blockquote {
            background: #1a202c;
            padding: 24px 28px;
            border-radius: 16px;
            border-left: 6px solid #f5c542;
            margin: 28px 0;
            font-style: italic;
            color: #cfcfe0;
        }
        .blockquote cite {
            display: block;
            margin-top: 12px;
            font-style: normal;
            color: #f5c542;
            font-weight: 600;
        }
        .btn {
            display: inline-block;
            background: #f5c542;
            color: #0b0d11;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 700;
            transition: 0.2s;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }
        .btn:hover {
            background: #ffdd77;
            transform: scale(1.03);
            text-decoration: none;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #f5c542;
            color: #f5c542;
        }
        .btn-outline:hover {
            background: #f5c54222;
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        .card {
            background: #1a202c;
            padding: 24px 28px;
            border-radius: 20px;
            border: 1px solid #2a2f3a;
        }
        .card h3 {
            margin-top: 0;
            border-bottom: 1px solid #2a2f3a;
            padding-bottom: 12px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: 4px;
            color: #cfcfe0;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background: #0b0d11;
            border: 1px solid #2a2f3a;
            border-radius: 12px;
            color: #fff;
            font-size: 1rem;
            transition: 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #f5c542;
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5c542;
        }
        friend-link {
            display: inline-block;
            background: #1a202c;
            padding: 6px 18px;
            border-radius: 40px;
            margin: 4px 8px 4px 0;
            border: 1px solid #2a2f3a;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #e8e6e3;
        }
        friend-link a:hover {
            color: #f5c542;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 16px 0;
        }
        .copyright {
            text-align: center;
            padding: 24px 0 16px;
            border-top: 1px solid #2a2f3a;
            color: #7a8291;
            font-size: 0.9rem;
            margin-top: 32px;
        }
        .last-updated {
            color: #9aa0ab;
            font-size: 0.9rem;
            text-align: right;
            margin-top: 8px;
        }
        .toc {
            background: #1a202c;
            padding: 20px 28px;
            border-radius: 16px;
            margin: 24px 0 32px;
            border: 1px solid #2a2f3a;
        }
        .toc ol {
            padding-left: 24px;
            columns: 2;
            column-gap: 40px;
        }
        .toc li {
            margin-bottom: 6px;
        }
        .toc a {
            color: #cfcfe0;
        }
        .toc a:hover {
            color: #f5c542;
        }
        @media (max-width: 820px) {
            .container {
                padding: 12px 16px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .grid-2,
            .interact-grid {
                grid-template-columns: 1fr;
            }
            .toc ol {
                columns: 1;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 16px 0 8px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            .search-bar {
                border-radius: 40px;
                padding: 8px 14px;
            }
            .search-bar button {
                padding: 8px 18px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 8px 12px;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.7rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                gap: 4px 8px;
            }
            .stat-card {
                padding: 16px;
            }
            .card {
                padding: 16px 18px;
            }
            .blockquote {
                padding: 16px 18px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        ul,
        ol {
            margin-bottom: 18px;
            padding-left: 24px;
        }
        li {
            margin-bottom: 6px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            background: #1a202c;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #2a2f3a;
        }
        th {
            background: #f5c54222;
            color: #f5c542;
            font-weight: 600;
        }
        tr:hover {
            background: #2a2f3a44;
        }
        code {
            background: #2a2f3a;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
        }
        .tag {
            display: inline-block;
            background: #f5c54222;
            color: #f5c542;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }