* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f7f4f0;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #b45309;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #78350f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            padding: 16px 0;
            border-bottom: 4px solid #fbbf24;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 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: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 10px rgba(251, 191, 36, 0.2);
            display: inline-block;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            -webkit-text-fill-color: #94a3b8;
            color: #94a3b8;
            letter-spacing: 1px;
        }
        .my-logo a {
            text-decoration: none;
            -webkit-text-fill-color: inherit;
            color: inherit;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #fbbf24;
            color: #fbbf24;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #fbbf24;
            color: #0f172a;
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e2e8f0;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: #fbbf24;
            color: #0f172a;
            text-decoration: none;
        }
        .breadcrumb {
            background: #e9e2d9;
            padding: 10px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d6cdc0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 6px;
            color: #8c7a6b;
        }
        .breadcrumb a {
            color: #7c5c3e;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 900px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #0f172a;
            border-left: 6px solid #fbbf24;
            padding-left: 20px;
        }
        .content h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #1e293b;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 8px;
        }
        .content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #334155;
        }
        .content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #475569;
        }
        .content p {
            margin-bottom: 18px;
            color: #1e2a3a;
        }
        .content ul,
        .content ol {
            margin-bottom: 18px;
            padding-left: 28px;
        }
        .content li {
            margin-bottom: 8px;
        }
        .content .highlight-box {
            background: #fef9ee;
            border-left: 6px solid #fbbf24;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .content .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .content .stat-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9e2d9;
        }
        .content .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #b45309;
        }
        .content .stat-card .label {
            font-size: 0.85rem;
            color: #64748b;
            font-weight: 500;
        }
        .content .feature-image {
            margin: 30px 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .content .feature-image figcaption {
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
            margin-top: 8px;
            font-style: italic;
        }
        .sidebar {
            background: #ffffff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9e2d9;
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #0f172a;
            border-bottom: 2px solid #fbbf24;
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            padding: 8px 0;
            border-bottom: 1px solid #f1ebe4;
        }
        .sidebar li a {
            color: #334155;
            font-weight: 500;
        }
        .sidebar li a:hover {
            color: #b45309;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-bottom: 24px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #d6cdc0;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
            background: #faf8f5;
        }
        .search-form input:focus {
            border-color: #fbbf24;
            box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.15);
        }
        .search-form button {
            padding: 12px 22px;
            background: #b45309;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #78350f;
            transform: scale(1.02);
        }
        .feedback-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 28px;
            margin: 40px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9e2d9;
        }
        .feedback-section h2 {
            margin-top: 0 !important;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 12px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #d6cdc0;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #faf8f5;
            transition: 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #fbbf24;
            box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.1);
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        @media (max-width: 600px) {
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        .btn-primary {
            padding: 14px 32px;
            background: #b45309;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .btn-primary:hover {
            background: #78350f;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(180, 83, 9, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #fbbf24;
            cursor: pointer;
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f59e0b;
            transform: scale(1.2);
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 40px 0 20px;
            margin-top: 40px;
            border-top: 4px solid #fbbf24;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        @media (max-width: 700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .site-footer h4 {
            color: #fbbf24;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            background: #1e293b;
            padding: 16px 20px;
            border-radius: 12px;
            margin: 16px 0;
            color: #e2e8f0;
            font-weight: 500;
        }
        friend-link a {
            color: #fbbf24;
            margin: 0 8px;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: 0.85rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 16px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                text-align: center;
                padding: 12px;
                border-radius: 8px;
            }
            .content h1 {
                font-size: 1.8rem;
                padding-left: 14px;
            }
            .content h2 {
                font-size: 1.5rem;
            }
            .content h3 {
                font-size: 1.2rem;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .content h1 {
                font-size: 1.5rem;
            }
        }
        .schema-hidden {
            display: none;
        }
        html {
            scroll-behavior: smooth;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .text-small {
            font-size: 0.85rem;
            color: #64748b;
        }
        .badge {
            display: inline-block;
            background: #fbbf24;
            color: #0f172a;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
        }