* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fc;
            color: #1e1e2a;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0d3b5e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        :root {
            --primary: #1a2b4c;
            --primary-light: #2c4a7c;
            --accent: #f5a623;
            --accent-hover: #d48f1a;
            --bg-light: #f0f2f8;
            --bg-card: #ffffff;
            --text-dark: #1e1e2a;
            --text-muted: #4a4a5a;
            --border-light: #e2e5ee;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --radius-sm: 6px;
            --transition: all 0.25s ease;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            -webkit-text-fill-color: var(--text-muted);
            color: var(--text-muted);
            letter-spacing: 0;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: var(--bg-light);
            color: var(--primary-light);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            transition: var(--transition);
        }
        .hamburger:hover {
            color: var(--accent);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: var(--bg-light);
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            padding: 3rem 0 2.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 var(--radius) var(--radius);
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }
        .hero p {
            font-size: 1.15rem;
            opacity: 0.9;
            max-width: 720px;
            margin-bottom: 0.5rem;
        }
        .hero .meta {
            font-size: 0.95rem;
            opacity: 0.75;
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-top: 0.5rem;
        }
        .hero .meta i {
            margin-right: 0.4rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-content {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 2rem 2.2rem;
            box-shadow: var(--shadow-sm);
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .main-content h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2.2rem 0 0.8rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid var(--accent);
        }
        .main-content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--primary-light);
            margin: 1.8rem 0 0.6rem;
        }
        .main-content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 1.4rem 0 0.4rem;
        }
        .main-content p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .main-content .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: var(--text-muted);
            border-left: 4px solid var(--accent);
            padding-left: 1.2rem;
            margin-bottom: 1.8rem;
        }
        .main-content strong {
            color: var(--primary);
        }
        .main-content em {
            font-style: italic;
        }
        .main-content blockquote {
            background: var(--bg-light);
            border-left: 4px solid var(--accent);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: var(--bg-light);
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            text-align: center;
        }
        .highlight-box {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: 1.5rem 1.8rem;
            margin: 1.8rem 0;
            border-left: 6px solid var(--accent);
        }
        .highlight-box h4 {
            margin-top: 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 1rem 1.2rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.8rem;
            border-bottom: 2px solid var(--accent);
            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 var(--border-light);
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.6rem 1rem;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15);
        }
        .search-form button {
            padding: 0.6rem 1.2rem;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--accent-hover);
        }
        .comment-section {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 2px solid var(--border-light);
        }
        .comment-section h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: inherit;
            margin-bottom: 0.8rem;
            transition: var(--transition);
            outline: none;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.1);
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form .row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .comment-form .row input {
            flex: 1;
        }
        .comment-form .btn-submit {
            padding: 0.7rem 2rem;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form .btn-submit:hover {
            background: var(--primary-light);
        }
        .rating-box {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: 1.2rem 1.5rem;
            margin: 1rem 0 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 2rem;
        }
        .rating-box .stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ccc;
            cursor: pointer;
        }
        .rating-box .stars i {
            transition: var(--transition);
        }
        .rating-box .stars i:hover,
        .rating-box .stars i.active {
            color: var(--accent);
        }
        .rating-box .stars i.selected {
            color: var(--accent);
        }
        .rating-form {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .rating-form button {
            padding: 0.5rem 1.5rem;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background: var(--accent-hover);
        }
        .site-footer {
            background: var(--primary);
            color: #ddd;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .site-footer a {
            color: #f0c884;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            border-bottom: 2px solid rgba(255, 255, 255, 0.15);
            padding-bottom: 0.4rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid li {
            padding: 0.25rem 0;
        }
        .footer-grid a {
            font-size: 0.95rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom .copyright {
            margin-top: 0.3rem;
        }
        friend-link {
            display: block;
            margin: 1rem 0 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
            padding: 0.2rem 0.8rem;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.18);
            text-decoration: none;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .main-content {
                padding: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--bg-card);
                padding: 0.75rem 0;
                border-top: 1px solid var(--border-light);
                margin-top: 0.5rem;
            }
            #nav-toggle:checked~.main-nav {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                width: 100%;
                border-radius: 0;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .main-content {
                padding: 1.2rem;
            }
            .main-content h2 {
                font-size: 1.5rem;
            }
            .main-content h3 {
                font-size: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rating-box {
                flex-direction: column;
                align-items: stretch;
            }
            .comment-form .row {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .main-content p {
                font-size: 0.98rem;
            }
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }