*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fc;
            color: #1e1e2a;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { text-decoration: none; color: #2b6cb0; transition: color 0.2s; }
        a:hover { color: #1a365d; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5rem; }
        h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: #0b0b16; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #1a1a3e, #24243e);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: #f0e6ff;
            text-shadow: 0 0 20px rgba(138, 92, 246, 0.4);
        }
        .my-logo span { color: #a78bfa; }
        .my-logo:hover { text-decoration: none; color: #c4b5fd; }
        .main-nav { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; }
        .main-nav a {
            color: #e0d9f0;
            padding: 0.5rem 0.9rem;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
        }
        .main-nav a:hover { background: rgba(167, 139, 250, 0.2); color: #c4b5fd; text-decoration: none; }
        .main-nav a i { margin-right: 0.35rem; font-size: 0.85rem; }
        .hamburger { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 0.25rem 0.5rem; }
        .breadcrumb {
            background: #edf2f7;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce2ed;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
        }
        .breadcrumb li + li::before { content: "›"; margin-right: 0.5rem; color: #718096; }
        .breadcrumb a { color: #2b6cb0; }
        .breadcrumb .current { color: #1a202c; font-weight: 500; }
        .page-wrap { flex: 1; padding: 2rem 0 3rem; }
        h1 { font-size: 2.4rem; margin-bottom: 1rem; color: #0b0b16; border-bottom: 4px solid #a78bfa; padding-bottom: 0.5rem; display: inline-block; }
        h2 { font-size: 1.8rem; margin: 2.5rem 0 1rem; color: #1a1a3e; border-left: 5px solid #a78bfa; padding-left: 1rem; }
        h3 { font-size: 1.35rem; margin: 1.8rem 0 0.8rem; color: #2d2d5e; }
        h4 { font-size: 1.1rem; margin: 1.2rem 0 0.5rem; color: #3d3d6b; font-weight: 600; }
        p { margin-bottom: 1.2rem; }
        .lead { font-size: 1.15rem; color: #2d3748; font-weight: 400; }
        .card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 24px rgba(0,0,0,0.04);
            margin-bottom: 2rem;
            border: 1px solid #edf2f7;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0,0,0,0.07); }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        .feature-item {
            background: #f7f6fc;
            border-radius: 14px;
            padding: 1.5rem;
            transition: background 0.2s, transform 0.2s;
        }
        .feature-item:hover { background: #ede9fe; transform: scale(1.01); }
        .feature-item i { font-size: 2rem; color: #7c3aed; margin-bottom: 0.75rem; }
        .table-wrap { overflow-x: auto; margin: 1.5rem 0; }
        table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
        th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid #e2e8f0; }
        th { background: #1a1a3e; color: #fff; font-weight: 600; }
        tr:nth-child(even) { background: #f7f6fc; }
        tr:hover { background: #ede9fe; }
        .featured-img {
            border-radius: 14px;
            margin: 1.5rem 0;
            box-shadow: 0 6px 28px rgba(0,0,0,0.08);
        }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label { display: block; font-weight: 600; margin-bottom: 0.3rem; color: #1a202c; }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.2s, box-shadow 0.2s;
            background: #fff;
        }
        .form-group input:focus, .form-group textarea:focus { border-color: #7c3aed; box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15); outline: none; }
        .btn {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            background: #7c3aed;
            color: #fff;
        }
        .btn:hover { background: #6d28d9; transform: translateY(-1px); }
        .btn-secondary { background: #2d3748; }
        .btn-secondary:hover { background: #1a202c; }
        .star-rating { display: flex; gap: 0.25rem; font-size: 1.6rem; color: #d1d5db; cursor: pointer; }
        .star-rating .fas.fa-star { color: #f59e0b; }
        .star-rating .far.fa-star { color: #d1d5db; }
        .star-rating i { transition: color 0.15s, transform 0.15s; }
        .star-rating i:hover { transform: scale(1.2); }
        .comment-item { padding: 1rem 0; border-bottom: 1px solid #edf2f7; }
        .comment-item:last-child { border-bottom: none; }
        .comment-author { font-weight: 600; color: #1a1a3e; }
        .comment-date { font-size: 0.8rem; color: #718096; margin-left: 0.75rem; }
        .comment-body { margin-top: 0.3rem; }
        .site-footer {
            background: #0f0c29;
            color: #cbd5e0;
            padding: 2.5rem 0 1.5rem;
            border-top: 3px solid #a78bfa;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
        .site-footer h4 { color: #e0d9f0; margin-bottom: 1rem; }
        .site-footer a { color: #a78bfa; }
        .site-footer a:hover { color: #c4b5fd; }
        .friend-link { display: flex; flex-wrap: wrap; gap: 1rem; }
        .friend-link a { padding: 0.3rem 0.8rem; background: rgba(167, 139, 250, 0.08); border-radius: 20px; font-size: 0.9rem; }
        .copyright { text-align: center; padding-top: 1.5rem; border-top: 1px solid #2d3748; font-size: 0.85rem; color: #8899aa; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav { display: none; width: 100%; flex-direction: column; padding: 1rem 0 0.5rem; gap: 0.2rem; }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 0.6rem 1rem; border-radius: 6px; width: 100%; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            .card { padding: 1.2rem 1.2rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .header-inner { align-items: center; }
        }
        @media (max-width: 480px) {
            html { font-size: 15px; }
            .my-logo { font-size: 1.4rem; }
            .container { padding: 0 1rem; }
        }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .text-muted { color: #718096; font-size: 0.9rem; }
        .flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
        .badge {
            display: inline-block;
            background: #ede9fe;
            color: #5b21b6;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .schema-hidden { display: none; }