* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #0a0a0f;
            color: #e0e0e0;
            line-height: 1.75;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #00f0ff;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #ff00ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            color: #f5f5ff;
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            margin: 0.5em 0 0.3em;
            background: linear-gradient(135deg, #00f0ff, #ff00ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            margin: 1.5em 0 0.6em;
            border-left: 5px solid #ff00ff;
            padding-left: 18px;
            color: #00f0ff;
        }
        h3 {
            font-size: clamp(1.2rem, 2vw, 1.6rem);
            margin: 1.3em 0 0.5em;
            color: #ffd700;
        }
        h4 {
            font-size: clamp(1rem, 1.5vw, 1.25rem);
            margin: 1em 0 0.4em;
            color: #ff7f50;
        }
        p {
            margin-bottom: 1.2em;
            font-size: 1rem;
            color: #cdcdd5;
        }
        ul,
        ol {
            margin: 0.8em 0 1.2em 1.8em;
            color: #cdcdd5;
        }
        li {
            margin-bottom: 0.4em;
        }
        strong {
            color: #ffd700;
        }
        em {
            color: #00f0ff;
            font-style: italic;
        }
        header {
            padding: 18px 0 10px;
            border-bottom: 1px solid #1e1e2a;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: 3px;
            background: linear-gradient(135deg, #ff00ff, #00f0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-transform: uppercase;
            transition: transform 0.3s ease;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.04);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            display: block;
            -webkit-text-fill-color: #8888aa;
            color: #8888aa;
            letter-spacing: 1px;
            font-weight: 300;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        nav a {
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid transparent;
            transition: all 0.3s ease;
            color: #c0c0d0;
        }
        nav a:hover {
            background: rgba(0, 240, 255, 0.12);
            border-color: #00f0ff;
            color: #00f0ff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.6rem;
            color: #00f0ff;
            cursor: pointer;
            background: transparent;
            border: none;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            font-size: 0.85rem;
            padding: 12px 0 6px;
            color: #8888aa;
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
        }
        .breadcrumb a {
            color: #00b8cc;
        }
        .breadcrumb a:hover {
            color: #ff00ff;
        }
        .breadcrumb span {
            color: #666688;
        }
        .search-form {
            display: flex;
            max-width: 480px;
            margin: 20px 0 24px;
            border-radius: 40px;
            overflow: hidden;
            border: 1px solid #2a2a3a;
            background: #12121a;
            transition: border-color 0.3s;
        }
        .search-form:focus-within {
            border-color: #00f0ff;
        }
        .search-form input {
            flex: 1;
            padding: 14px 20px;
            background: transparent;
            border: none;
            color: #f0f0ff;
            font-size: 1rem;
            outline: none;
        }
        .search-form input::placeholder {
            color: #55556a;
        }
        .search-form button {
            padding: 14px 24px;
            background: #00f0ff;
            border: none;
            color: #0a0a0f;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #ff00ff;
            color: #fff;
        }
        main {
            flex: 1;
            padding: 10px 0 40px;
        }
        .featured-image {
            margin: 24px 0 32px;
            border-radius: 16px;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
        }
        .featured-image img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
        }
        .featured-image figcaption {
            font-size: 0.85rem;
            color: #8888aa;
            margin-top: 8px;
            text-align: center;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0 32px;
            background: #12121a;
            border-radius: 12px;
            overflow: hidden;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #1a1a2a;
            color: #00f0ff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
            border-bottom: 2px solid #ff00ff;
        }
        .data-table td {
            padding: 12px 18px;
            border-bottom: 1px solid #1e1e2a;
            color: #c8c8d8;
        }
        .data-table tr:hover td {
            background: rgba(0, 240, 255, 0.04);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 36px 0;
        }
        @media (max-width: 720px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #12121a;
            border: 1px solid #1e1e2a;
            border-radius: 18px;
            padding: 24px 28px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .card:hover {
            border-color: #00f0ff55;
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.05);
        }
        .card h3 {
            margin-top: 0;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 12px;
        }
        .card label {
            font-size: 0.9rem;
            color: #aaaacc;
        }
        .card input,
        .card textarea,
        .card select {
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid #2a2a3a;
            background: #0d0d15;
            color: #f0f0ff;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .card input:focus,
        .card textarea:focus,
        .card select:focus {
            border-color: #00f0ff;
        }
        .card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .card .btn {
            padding: 12px 22px;
            border-radius: 30px;
            border: none;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            background: linear-gradient(135deg, #00f0ff, #0088cc);
            color: #0a0a0f;
            transition: transform 0.2s, box-shadow 0.3s;
            align-self: flex-start;
        }
        .card .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 240, 255, 0.3);
        }
        .card .btn-secondary {
            background: linear-gradient(135deg, #ff00ff, #9900cc);
            color: #fff;
        }
        .card .btn-secondary:hover {
            box-shadow: 0 6px 20px rgba(255, 0, 255, 0.25);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            flex-direction: row-reverse;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #3a3a4a;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #ffd700;
        }
        friend-link {
            display: block;
            padding: 20px 0 12px;
            border-top: 1px solid #1e1e2a;
            margin-top: 32px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            padding: 4px 0;
            color: #00b8cc;
        }
        friend-link a:hover {
            color: #ff00ff;
        }
        footer {
            padding: 28px 0 32px;
            border-top: 1px solid #1e1e2a;
            font-size: 0.9rem;
            color: #77779a;
            text-align: center;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        footer .copyright {
            color: #666688;
        }
        footer .copyright strong {
            color: #aaaacc;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 14px;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0 8px;
                gap: 6px;
            }
            nav a {
                padding: 10px 16px;
                border-radius: 10px;
            }
            #nav-toggle:checked~nav {
                display: flex;
            }
            header {
                align-items: center;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .data-table {
                font-size: 0.82rem;
            }
            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }
            .card {
                padding: 18px 16px;
            }
            footer {
                flex-direction: column;
                text-align: center;
            }
            .search-form {
                max-width: 100%;
            }
            .interaction-grid {
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.4rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 12px;
            }
            h3 {
                font-size: 1.05rem;
            }
            .star-rating label {
                font-size: 1.4rem;
            }
        }
        .tag {
            display: inline-block;
            background: #1a1a2e;
            color: #00f0ff;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid #00f0ff33;
        }
        .highlight-box {
            background: #11111e;
            border-left: 4px solid #ff00ff;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 28px 0;
        }
        @media (max-width: 640px) {
            .two-col {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            background: #00f0ff;
            color: #0a0a0f;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
            transition: transform 0.3s, background 0.3s;
            z-index: 99;
            border: none;
            cursor: pointer;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            background: #ff00ff;
            color: #fff;
        }
        @media (max-width: 480px) {
            .back-to-top {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
                bottom: 16px;
                right: 16px;
            }
        }