*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1a73e8;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #e65c00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: #1a73e8;
            color: #fff;
            padding: 0.6rem 1.2rem;
            border-radius: 0 0 8px 8px;
            z-index: 999;
            transition: top 0.25s;
        }
        .skip-link:focus {
            top: 0;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: opacity 0.25s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
            color: #fff;
        }
        .my-logo i {
            color: #facc15;
            font-size: 1.8rem;
        }
        .my-logo span {
            background: linear-gradient(to right, #facc15, #fb923c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.5rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background: rgba(255, 255, 255, 0.12);
            color: #facc15;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        .breadcrumb-wrap {
            background: #f1f5f9;
            padding: 0.6rem 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            font-size: 0.85rem;
            color: #475569;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #1a73e8;
        }
        .breadcrumb a:hover {
            color: #e65c00;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        .main-wrap {
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .article-body h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            color: #0f172a;
        }
        .article-body h1 i {
            color: #facc15;
            margin-right: 0.4rem;
        }
        .article-body .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            font-size: 0.85rem;
            color: #64748b;
            border-bottom: 1px solid #e2e8f0;
            padding-bottom: 1rem;
            margin-bottom: 1.5rem;
        }
        .article-body .meta i {
            margin-right: 0.3rem;
        }
        .article-body h2 {
            font-size: 1.65rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem;
            color: #0f172a;
            border-left: 4px solid #facc15;
            padding-left: 0.8rem;
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 1.8rem 0 0.6rem;
            color: #1e293b;
        }
        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1.2rem 0 0.4rem;
            color: #334155;
        }
        .article-body p {
            margin-bottom: 1rem;
        }
        .article-body .highlight-box {
            background: #fef9e7;
            border-left: 4px solid #facc15;
            padding: 1rem 1.4rem;
            border-radius: 0 8px 8px 0;
            margin: 1.2rem 0;
        }
        .article-body .highlight-box strong {
            color: #b45309;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1rem;
        }
        .article-body .feature-img {
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .article-body .feature-img figcaption {
            font-size: 0.85rem;
            color: #64748b;
            text-align: center;
            margin-top: 0.4rem;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: #0f172a;
            border-bottom: 2px solid #facc15;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            color: #1e293b;
            font-weight: 500;
        }
        .sidebar-card a:hover {
            color: #e65c00;
        }
        .search-form {
            display: flex;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            overflow: hidden;
            transition: border-color 0.2s;
            background: #fff;
        }
        .search-form:focus-within {
            border-color: #1a73e8;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.6rem 1rem;
            font-size: 0.95rem;
            outline: none;
            background: transparent;
        }
        .search-form button {
            background: #1a73e8;
            color: #fff;
            border: none;
            padding: 0.6rem 1.2rem;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #e65c00;
        }
        .comment-area,
        .rating-area {
            margin-top: 2.5rem;
            border-top: 2px solid #e2e8f0;
            padding-top: 1.8rem;
        }
        .comment-area h3,
        .rating-area h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #0f172a;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 0.95rem;
            margin-bottom: 0.8rem;
            transition: border-color 0.2s;
            font-family: inherit;
            resize: vertical;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #1a73e8;
            outline: none;
        }
        .comment-form .btn,
        .rating-form .btn {
            background: #1a73e8;
            color: #fff;
            border: none;
            padding: 0.65rem 1.8rem;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .comment-form .btn:hover,
        .rating-form .btn:hover {
            background: #e65c00;
            transform: translateY(-1px);
        }
        .rating-form {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .rating-form select {
            padding: 0.5rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #fff;
        }
        .stars i {
            color: #facc15;
            font-size: 1.2rem;
            margin-right: 0.15rem;
        }
        friend-link {
            display: block;
            background: #f8fafc;
            border-radius: 12px;
            padding: 1.2rem 1.5rem;
            margin-top: 1.5rem;
            border: 1px solid #e2e8f0;
        }
        friend-link::before {
            content: "🔗 Friendly Links";
            display: block;
            font-weight: 700;
            font-size: 1rem;
            color: #0f172a;
            margin-bottom: 0.6rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            padding: 0.2rem 0.6rem;
            background: #e2e8f0;
            border-radius: 16px;
            font-size: 0.85rem;
            color: #1e293b;
            transition: background 0.2s, color 0.2s;
        }
        friend-link a:hover {
            background: #1a73e8;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2rem 0 1.5rem;
            margin-top: 2rem;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            opacity: 0.8;
            text-align: center;
            width: 100%;
            border-top: 1px solid #1e3a5f;
            padding-top: 1.2rem;
            margin-top: 1rem;
        }
        .site-footer a {
            color: #93c5fd;
        }
        .site-footer a:hover {
            color: #facc15;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f172a;
                padding: 0.8rem 0;
                border-radius: 0 0 12px 12px;
                margin-top: 0.6rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.6rem 1.2rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
            .article-body {
                padding: 1.5rem 1rem;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .sidebar {
                order: 2;
            }
            .content-grid {
                gap: 1.5rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 0.8rem;
            }
            .article-body {
                padding: 1rem 0.8rem;
            }
            .rating-form {
                flex-direction: column;
                align-items: stretch;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .text-muted {
            color: #64748b;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 1rem;
        }
        .align-center {
            align-items: center;
        }