*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --bg-dark: #0d0f1a;
            --bg-card: #151829;
            --bg-elevated: #1c2033;
            --text-primary: #e8edf5;
            --text-secondary: #9aa4bf;
            --text-muted: #6b7394;
            --accent-1: #6c5ce7;
            --accent-2: #a29bfe;
            --accent-3: #fd79a8;
            --accent-glow: rgba(108, 92, 231, 0.25);
            --border-color: #2a2e45;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.6);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.75;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--accent-2);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: #fff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            background: rgba(21, 24, 41, 0.92);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity var(--transition);
            flex-shrink: 0;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo span {
            -webkit-text-fill-color: var(--text-primary);
            color: var(--text-primary);
            background: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-list a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .nav-list a:hover,
        .nav-list a:focus-visible {
            color: #fff;
            background: var(--bg-elevated);
            border-color: var(--border-color);
            text-decoration: none;
        }
        .nav-list a.active {
            color: #fff;
            background: var(--accent-1);
            border-color: var(--accent-1);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .hamburger:hover {
            background: var(--bg-elevated);
        }
        .breadcrumb {
            padding: 12px 0 4px;
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .current {
            color: var(--accent-2);
        }
        .main-content {
            flex: 1;
            padding: 32px 0 48px;
        }
        .hero {
            text-align: center;
            padding: 40px 0 32px;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--accent-2), var(--accent-3), var(--accent-1));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 auto 24px;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .hero-meta i {
            margin-right: 6px;
            color: var(--accent-2);
        }
        .featured-figure {
            margin: 32px 0 40px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: var(--bg-card);
        }
        .featured-figure img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
        }
        .featured-figure figcaption {
            padding: 12px 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            font-style: italic;
            border-top: 1px solid var(--border-color);
        }
        section {
            margin-bottom: 48px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 40px 0 16px;
            line-height: 1.3;
            color: #fff;
            border-left: 4px solid var(--accent-1);
            padding-left: 18px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 32px 0 12px;
            color: var(--text-primary);
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: var(--accent-2);
        }
        p {
            margin-bottom: 16px;
            color: var(--text-secondary);
            max-width: 80ch;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 24px 0;
        }
        .content-grid.single-col {
            grid-template-columns: 1fr;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .card:hover {
            border-color: var(--accent-1);
            box-shadow: 0 0 24px var(--accent-glow);
            transform: translateY(-2px);
        }
        .card h3 {
            margin-top: 0;
        }
        .card h4 {
            margin-top: 0;
        }
        .highlight {
            background: var(--bg-elevated);
            border-left: 4px solid var(--accent-3);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
        }
        .highlight strong {
            color: #fff;
        }
        .emoji-lg {
            font-size: 1.4rem;
            margin-right: 6px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-item {
            background: var(--bg-elevated);
            border-radius: var(--radius-sm);
            padding: 20px 16px;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-2);
            display: block;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .link-inline-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin: 16px 0;
            padding: 0;
            list-style: none;
        }
        .link-inline-list li a {
            font-weight: 500;
            padding: 4px 0;
            border-bottom: 1px solid transparent;
            transition: border-color var(--transition);
        }
        .link-inline-list li a:hover {
            border-bottom-color: var(--accent-2);
        }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin: 48px 0;
        }
        .interaction-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 12px;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-family: var(--font-sans);
            transition: border-color var(--transition);
            width: 100%;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            outline: none;
            border-color: var(--accent-1);
            box-shadow: 0 0 0 3px var(--accent-glow);
        }
        .interaction-card textarea {
            resize: vertical;
            min-height: 80px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            background: var(--accent-1);
            color: #fff;
            font-family: var(--font-sans);
        }
        .btn:hover {
            background: var(--accent-2);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px var(--accent-glow);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
        }
        .btn-outline:hover {
            border-color: var(--accent-2);
            color: #fff;
            background: var(--bg-elevated);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: var(--text-muted);
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color var(--transition);
            cursor: pointer;
            color: var(--text-muted);
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f9ca24;
        }
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 24px;
            margin-top: 32px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-inner h4 {
            margin: 0 0 12px;
            font-size: 1.1rem;
            color: #fff;
        }
        .footer-inner p,
        .footer-inner a {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .footer-inner a:hover {
            color: #fff;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
        }
        .friend-link a {
            color: var(--text-secondary);
        }
        .friend-link a:hover {
            color: var(--accent-2);
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .copyright strong {
            color: var(--text-secondary);
        }
        @media (max-width: 900px) {
            .interaction-section {
                grid-template-columns: 1fr 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--bg-card);
                padding: 12px 0;
                border-radius: var(--radius-md);
                border: 1px solid var(--border-color);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 99;
                margin-top: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 20px;
                border-radius: 0;
                border: none;
                width: 100%;
            }
            .nav-list a:hover {
                background: var(--bg-elevated);
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                position: relative;
            }
            .interaction-section {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero {
                padding: 24px 0;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .card {
                padding: 18px 16px;
            }
            .interaction-card {
                padding: 20px 16px;
            }
        }
        .text-accent {
            color: var(--accent-2);
        }
        .text-bold {
            font-weight: 700;
            color: #fff;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }
        .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;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: var(--bg-elevated);
            padding: 4px 14px;
            border-radius: 50px;
        }