*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #6c5ce7;
            --primary-dark: #4a3db8;
            --secondary: #fd79a8;
            --accent: #00cec9;
            --bg: #0d0d1a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #22223a;
            --text: #f0f0f5;
            --text-muted: #b0b0c8;
            --text-dim: #7a7a9a;
            --border: #2d2d4a;
            --radius: 16px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 12px 0;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: var(--text-muted);
            color: var(--text-muted);
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border);
            color: var(--text);
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 10px;
            cursor: pointer;
            transition: background var(--transition), border-color var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-card-hover);
            border-color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: background var(--transition), color var(--transition);
        }
        .nav-menu a:hover,
        .nav-menu a:focus-visible {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: var(--primary-dark);
            color: #fff;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 12px 0 4px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span.sep {
            color: var(--text-dim);
        }
        .hero {
            padding: 60px 0 40px;
            text-align: center;
            background: radial-gradient(ellipse at 50% 0%, rgba(108, 92, 231, 0.15), transparent 70%);
        }
        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4rem);
            font-weight: 900;
            line-height: 1.15;
            background: linear-gradient(135deg, #fff 30%, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 24px;
        }
        .hero-meta {
            font-size: 0.9rem;
            color: var(--text-dim);
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-meta i {
            margin-right: 6px;
            color: var(--primary);
        }
        .search-section {
            margin: 32px 0 48px;
        }
        .search-form {
            display: flex;
            max-width: 560px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 50px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.2);
        }
        .search-form input {
            flex: 1;
            padding: 16px 22px;
            border: none;
            background: transparent;
            color: var(--text);
            font-size: 1rem;
            outline: none;
            min-width: 0;
        }
        .search-form input::placeholder {
            color: var(--text-dim);
        }
        .search-form button {
            padding: 16px 28px;
            border: none;
            background: var(--primary);
            color: #fff;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            padding: 40px 0 60px;
        }
        @media(max-width:960px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .main-content h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 16px;
            color: #fff;
            border-left: 5px solid var(--primary);
            padding-left: 18px;
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--secondary);
        }
        .main-content h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--accent);
        }
        .main-content p {
            margin-bottom: 18px;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .main-content p strong {
            color: #fff;
            font-weight: 600;
        }
        .main-content ul,
        .main-content ol {
            margin: 0 0 20px 24px;
            color: var(--text-muted);
        }
        .main-content li {
            margin-bottom: 8px;
        }
        .main-content .feature-img {
            margin: 32px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .main-content .feature-img img {
            width: 100%;
            object-fit: cover;
        }
        .main-content .feature-img figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-dim);
            padding: 10px 0 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        @media(max-width:960px) {
            .sidebar {
                position: static;
            }
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: background var(--transition);
        }
        .sidebar-card:hover {
            background: var(--bg-card-hover);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i {
            color: var(--primary);
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-links li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-links li:last-child {
            border-bottom: none;
        }
        .sidebar-links a {
            color: var(--text-muted);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color var(--transition), padding-left var(--transition);
        }
        .sidebar-links a:hover {
            color: var(--accent);
            padding-left: 6px;
            text-decoration: none;
        }
        .sidebar-links a i {
            width: 20px;
            color: var(--primary);
            font-size: 0.85rem;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 48px 0;
        }
        @media(max-width:700px) {
            .interaction-area {
                grid-template-columns: 1fr;
            }
        }
        .interaction-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: background var(--transition);
        }
        .interaction-card:hover {
            background: var(--bg-card-hover);
        }
        .interaction-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-card h3 i {
            color: var(--secondary);
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .interaction-card label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--bg);
            color: var(--text);
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
        }
        .interaction-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .interaction-card .btn-submit {
            padding: 12px 24px;
            border: none;
            border-radius: 30px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
            align-self: flex-start;
        }
        .interaction-card .btn-submit:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: var(--border);
            cursor: pointer;
            transition: color var(--transition), transform var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #fdcb6e;
            transform: scale(1.05);
        }
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            padding: 40px 0 24px;
            margin-top: 48px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        @media(max-width:720px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand .my-logo {
            font-size: 1.4rem;
        }
        .footer-brand p {
            color: var(--text-dim);
            font-size: 0.9rem;
            margin-top: 8px;
            max-width: 300px;
        }
        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-links ul {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            padding: 4px 0;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            margin-top: 16px;
            padding: 16px 20px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }
        friend-link span.label {
            font-weight: 600;
            color: var(--text-muted);
            font-size: 0.9rem;
            display: block;
            margin-bottom: 8px;
        }
        friend-link a {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: inline-block;
            margin-right: 16px;
            margin-bottom: 4px;
        }
        friend-link a:hover {
            color: var(--accent);
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 12px 0 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                border-radius: 10px;
                text-align: center;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .main-content h2 {
                font-size: 1.6rem;
                padding-left: 14px;
            }
            .main-content h3 {
                font-size: 1.3rem;
            }
            .main-content p {
                font-size: 1rem;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
        }
        ::-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(--primary-dark);
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-card);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--text-dim);
            border: 1px solid var(--border);
            margin-bottom: 24px;
        }
        .last-updated i {
            color: var(--accent);
        }
        .highlight-box {
            background: var(--bg-card);
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .highlight-box p {
            margin-bottom: 0;
            color: var(--text);
        }
        .highlight-box p strong {
            color: var(--secondary);
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: var(--bg-card);
            padding: 20px;
            border-radius: var(--radius);
            text-align: center;
            border: 1px solid var(--border);
            transition: transform var(--transition), border-color var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .table-wrap th,
        .table-wrap td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            color: var(--text-muted);
        }
        .table-wrap th {
            background: var(--bg-card);
            color: #fff;
            font-weight: 600;
        }
        .table-wrap tr:hover td {
            background: var(--bg-card-hover);
        }