* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --bg-dark: #0a0a14;
            --bg-card: #12121f;
            --bg-light: #1a1a2e;
            --neon-pink: #e94560;
            --neon-cyan: #00d2ff;
            --neon-purple: #7b2ff7;
            --text-main: #e0e0e8;
            --text-dim: #8a8a9e;
            --border-glow: rgba(0, 210, 255, 0.3);
            --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.8;
            overflow-x: hidden;
        }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        a { color: var(--neon-cyan); text-decoration: none; transition: color 0.3s, text-shadow 0.3s; }
        a:hover { color: #fff; text-shadow: 0 0 12px var(--neon-cyan); }
        .site-header {
            background: linear-gradient(180deg, #0f0f1f, #0a0a14);
            border-bottom: 2px solid var(--border-glow);
            padding: 20px 0;
            position: sticky; top: 0; z-index: 1000;
            backdrop-filter: blur(12px);
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
        .my-logo {
            font-size: 1.6rem; font-weight: 900;
            background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple), var(--neon-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase; letter-spacing: 1px;
            font-family: 'Arial Black', sans-serif;
        }
        .my-logo i { margin-right: 6px; }
        .nav-toggle {
            display: none;
            background: none; border: 2px solid var(--neon-cyan);
            color: var(--neon-cyan); font-size: 1.4rem;
            padding: 8px 14px; border-radius: 8px; cursor: pointer;
            transition: all 0.3s;
        }
        .nav-toggle:hover { background: rgba(0, 210, 255, 0.1); }
        .main-nav { display: flex; gap: 28px; flex-wrap: wrap; }
        .main-nav a {
            color: var(--text-main); font-size: 0.95rem; font-weight: 600;
            padding: 6px 0; border-bottom: 2px solid transparent;
            transition: border-color 0.3s, color 0.3s;
        }
        .main-nav a:hover { color: var(--neon-cyan); border-color: var(--neon-cyan); }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 12px;
                padding: 16px 0;
                border-top: 1px solid var(--border-glow);
            }
            .main-nav.open { display: flex; }
        }
        .breadcrumb {
            background: var(--bg-card);
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.85rem;
        }
        .breadcrumb span { color: var(--text-dim); }
        .breadcrumb a { color: var(--neon-cyan); }
        .breadcrumb a:hover { color: #fff; }
        .hero {
            background: radial-gradient(ellipse at 30% 50%, rgba(123, 47, 247, 0.25), transparent 70%), radial-gradient(ellipse at 70% 80%, rgba(233, 69, 96, 0.15), transparent 60%);
            padding: 80px 0 60px;
            text-align: center;
            border-bottom: 1px solid var(--border-glow);
        }
        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, #fff, var(--neon-cyan), var(--neon-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero p { font-size: 1.15rem; color: var(--text-dim); max-width: 700px; margin: 0 auto; }
        .section { padding: 70px 0 30px; }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 3px solid var(--neon-pink);
            display: inline-block;
            letter-spacing: -0.3px;
        }
        .section-title i { color: var(--neon-cyan); margin-right: 10px; font-size: 1.8rem; vertical-align: middle; }
        .subsection-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--neon-cyan);
            margin: 40px 0 16px;
        }
        .subsection-title i { margin-right: 8px; }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #fff;
            margin: 24px 0 12px;
        }
        .card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 28px;
            margin: 24px 0;
            border: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: var(--card-shadow);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .card:hover { transform: translateY(-4px); box-shadow: 0 12px 48px rgba(0, 0, 0, 0.6); }
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        @media (max-width: 768px) {
            .grid-2, .grid-3 { grid-template-columns: 1fr; }
            .hero h1 { font-size: 2.2rem; }
            .section-title { font-size: 1.7rem; }
        }
        .content-img {
            width: 100%;
            border-radius: 12px;
            margin: 24px 0;
            border: 2px solid var(--border-glow);
        }
        .img-caption {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-top: -12px;
            margin-bottom: 24px;
        }
        .stats-box {
            background: linear-gradient(135deg, rgba(123, 47, 247, 0.2), rgba(0, 210, 255, 0.1));
            border: 2px solid var(--border-glow);
            border-radius: 16px;
            padding: 20px 24px;
            display: flex; gap: 16px;
            flex-wrap: wrap;
        }
        .stat-item { flex: 1; min-width: 140px; text-align: center; }
        .stat-item .num { display: block; font-size: 2.2rem; font-weight: 900; color: #fff; }
        .stat-item .label { font-size: 0.85rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
        .quote {
            border-left: 5px solid var(--neon-pink);
            background: rgba(233, 69, 96, 0.05);
            padding: 20px 24px;
            margin: 28px 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: var(--text-main);
        }
        .quote .author {
            display: block; margin-top: 12px;
            font-style: normal; font-weight: 700;
            color: var(--neon-cyan); font-size: 0.9rem;
        }
        .feature-list { list-style: none; padding: 0; }
        .feature-list li {
            padding: 8px 0 8px 36px;
            position: relative;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }
        .feature-list li:before {
            content: '▸';
            position: absolute; left: 0;
            color: var(--neon-pink);
            font-size: 1.3rem;
        }
        .feature-list li strong { color: #fff; }
        .download-btn {
            display: inline-block;
            background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
            color: #fff !important;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            margin: 8px;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 4px 20px rgba(233, 69, 96, 0.35);
        }
        .download-btn:hover {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 8px 32px rgba(233, 69, 96, 0.5);
        }
        .download-btn.cyan {
            background: linear-gradient(135deg, var(--neon-cyan), #0078ff);
            box-shadow: 0 4px 20px rgba(0, 210, 255, 0.3);
        }
        .search-box {
            background: var(--bg-card);
            border-radius: 50px;
            padding: 8px 8px 8px 24px;
            display: flex;
            align-items: center;
            border: 2px solid var(--border-glow);
            max-width: 520px;
            margin: 24px auto;
            transition: border-color 0.3s;
        }
        .search-box:focus-within { border-color: var(--neon-pink); }
        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1rem;
            outline: none;
            padding: 10px 0;
        }
        .search-box button {
            background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
            border: none;
            color: #fff;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.3s;
        }
        .search-box button:hover { transform: scale(1.04); }
        .comment-form, .rating-form {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            margin: 16px 0 30px;
        }
        .comment-form textarea, .comment-form input, .rating-form select {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-light);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
            font-family: inherit;
        }
        .comment-form textarea { min-height: 100px; resize: vertical; }
        .comment-form textarea:focus, .comment-form input:focus, .rating-form select:focus {
            border-color: var(--neon-cyan);
            outline: none;
        }
        .submit-btn {
            background: var(--neon-cyan);
            color: #000 !important;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            font-size: 1rem;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .submit-btn:hover { transform: scale(1.04); box-shadow: 0 4px 20px rgba(0, 210, 255, 0.4); }
        .star-input { display: flex; gap: 8px; flex-direction: row-reverse; justify-content: flex-end; }
        .star-input input { display: none; }
        .star-input label { font-size: 2rem; color: #3a3a4e; cursor: pointer; transition: color 0.2s; }
        .star-input input:checked~label, .star-input input:checked~label~label { color: var(--neon-pink); }
        .star-input label:hover, .star-input label:hover~label, .star-input label:hover~label~label { color: var(--neon-pink); }
        .faq-item { margin-bottom: 8px; }
        .faq-question {
            background: var(--bg-card);
            padding: 18px 24px;
            border-radius: 10px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: border-color 0.3s;
        }
        .faq-question:hover { border-color: var(--neon-cyan); }
        .faq-answer {
            padding: 16px 24px;
            color: var(--text-dim);
            border-left: 3px solid var(--neon-purple);
            margin-left: 8px;
            background: rgba(123, 47, 247, 0.03);
        }
        .site-footer {
            background: #0c0c18;
            border-top: 2px solid var(--border-glow);
            padding: 50px 0 30px;
            margin-top: 80px;
        }
        .footer-inner { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
        .footer-col { flex: 1; min-width: 200px; }
        .footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
        .footer-col a { display: block; color: var(--text-dim); font-size: 0.9rem; padding: 4px 0; }
        .footer-col a:hover { color: var(--neon-cyan); }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 10px;
            padding: 20px;
            margin: 20px 0;
            font-size: 0.9rem;
        }
        friend-link a {
            color: var(--neon-cyan);
            margin: 0 10px;
            display: inline-block;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-dim);
            font-size: 0.85rem;
            margin-top: 40px;
        }
        .back-top {
            position: fixed;
            bottom: 30px; right: 30px;
            width: 50px; height: 50px;
            background: var(--neon-purple);
            color: #fff;
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(123, 47, 247, 0.4);
            transition: transform 0.3s, box-shadow 0.3s;
            z-index: 999;
        }
        .back-top:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(123, 47, 247, 0.6); }
        @media (max-width: 640px) {
            .hero { padding: 50px 0 40px; }
            .hero h1 { font-size: 1.7rem; }
            .section { padding: 50px 0 20px; }
            .section-title { font-size: 1.4rem; }
            .card { padding: 20px; }
            .stats-box { flex-direction: column; }
            .copyright { font-size: 0.75rem; }
        }