*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #6c3eb8;
            --primary-dark: #4a1f8a;
            --primary-light: #a78bfa;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #16213e;
            --text: #e2e8f0;
            --text-muted: #94a3b8;
            --text-heading: #f8fafc;
            --border: #2d2d44;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.6);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: var(--accent);
            text-decoration: underline;
        }
        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;
        }
        .site-header {
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-h);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 16px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none !important;
        }
        .my-logo i {
            -webkit-text-fill-color: var(--accent);
            font-size: 1.4rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            padding: 8px 14px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-muted);
            transition: all 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--text-heading);
            background: rgba(255, 255, 255, 0.06);
            text-decoration: none;
        }
        .breadcrumb-wrap {
            background: rgba(26, 26, 46, 0.6);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
            font-size: 0.85rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 6px;
            color: var(--text-muted);
            font-weight: 600;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }
        .hero {
            padding: 48px 0 32px;
            text-align: center;
            background: radial-gradient(ellipse at 50% 0%, rgba(108, 62, 184, 0.12) 0%, transparent 70%);
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-heading);
            margin-bottom: 12px;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--accent), #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 20px;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px 32px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .hero .meta-info i {
            margin-right: 6px;
            color: var(--accent);
        }
        .search-section {
            padding: 8px 0 24px;
        }
        .search-form {
            display: flex;
            max-width: 560px;
            margin: 0 auto;
            border-radius: 60px;
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--bg-card);
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .search-form:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(108, 62, 184, 0.2);
        }
        .search-form input {
            flex: 1;
            padding: 14px 20px;
            border: none;
            background: transparent;
            color: var(--text);
            font-size: 1rem;
            outline: none;
            min-width: 0;
        }
        .search-form input::placeholder {
            color: var(--text-muted);
        }
        .search-form button {
            padding: 14px 24px;
            background: var(--primary);
            border: none;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 32px 0 48px;
        }
        .content-area article {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
        }
        .content-area h2 {
            font-size: 1.7rem;
            color: var(--text-heading);
            margin: 36px 0 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border);
        }
        .content-area h2:first-of-type {
            margin-top: 0;
        }
        .content-area h3 {
            font-size: 1.25rem;
            color: var(--primary-light);
            margin: 28px 0 12px;
        }
        .content-area h4 {
            font-size: 1.05rem;
            color: var(--accent);
            margin: 20px 0 8px;
            font-weight: 600;
        }
        .content-area p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .content-area .feature-img {
            margin: 24px 0 16px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg);
        }
        .content-area .feature-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/9;
        }
        .content-area .feature-img figcaption {
            padding: 10px 14px;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: var(--bg);
            border-top: 1px solid var(--border);
        }
        .content-area ul,
        .content-area ol {
            margin: 0 0 16px 24px;
        }
        .content-area li {
            margin-bottom: 6px;
        }
        .content-area blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 20px 0;
            background: rgba(245, 158, 11, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .highlight-box {
            background: rgba(108, 62, 184, 0.1);
            border: 1px solid rgba(108, 62, 184, 0.25);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
            margin: 20px 0;
        }
        .highlight-box strong {
            color: var(--accent);
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            margin: 16px 0;
        }
        .link-list-inline a {
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.9rem;
            border: 1px solid var(--border);
            transition: all 0.2s;
        }
        .link-list-inline a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 22px 20px;
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: var(--text-heading);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card li a {
            display: block;
            padding: 6px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.92rem;
            transition: all 0.2s;
        }
        .sidebar-card li a:hover {
            padding-left: 6px;
            color: var(--accent);
            text-decoration: none;
        }
        .feedback-section {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .feedback-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 20px 22px;
            border: 1px solid var(--border);
        }
        .feedback-card h3 {
            font-size: 1.1rem;
            color: var(--text-heading);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--bg-card);
            color: var(--text);
            font-size: 0.95rem;
            font-family: var(--font);
            transition: border-color 0.25s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            outline: none;
            border-color: var(--primary-light);
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .feedback-card .star-rating input {
            display: none;
        }
        .feedback-card .star-rating label {
            font-size: 1.5rem;
            color: var(--border);
            cursor: pointer;
            transition: color 0.2s;
        }
        .feedback-card .star-rating input:checked~label,
        .feedback-card .star-rating label:hover,
        .feedback-card .star-rating label:hover~label {
            color: var(--accent);
        }
        .feedback-card .btn-submit {
            padding: 10px 20px;
            background: var(--primary);
            border: none;
            border-radius: 8px;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            font-size: 0.95rem;
        }
        .feedback-card .btn-submit:hover {
            background: var(--primary-dark);
        }
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            padding: 40px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            color: var(--text-heading);
            font-size: 1rem;
            margin-bottom: 12px;
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 6px;
        }
        friend-link {
            display: block;
            margin-top: 8px;
            font-size: 0.9rem;
        }
        friend-link a {
            color: var(--text-muted);
            margin-right: 16px;
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .copyright strong {
            color: var(--text);
        }
        @media (max-width: 1024px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border);
                gap: 4px;
                box-shadow: var(--shadow);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu a {
                width: 100%;
                padding: 12px 16px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .content-area article {
                padding: 20px 16px;
            }
            .hero {
                padding: 28px 0 20px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .search-form input {
                padding: 12px 14px;
                font-size: 0.9rem;
            }
            .search-form button {
                padding: 12px 16px;
                font-size: 0.85rem;
            }
            .feedback-card .star-rating label {
                font-size: 1.3rem;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, 0.1);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--accent);
        }