* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a1a2e;
            --secondary: #16213e;
            --accent: #0f3460;
            --gold: #e94560;
            --light: #f5f5f7;
            --text: #2d2d3a;
            --muted: #6b7280;
            --border: #e5e7eb;
            --radius: 12px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            color: var(--text);
            background: #fafafa;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--primary);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: var(--gold);
        }
        .my-logo span {
            background: linear-gradient(135deg, #f093fb, #f5576c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            -webkit-text-fill-color: rgba(255, 255, 255, 0.5);
            margin-left: 4px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #fff;
            border-bottom-color: var(--gold);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
        }
        .breadcrumb {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: var(--muted);
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #fff;
            padding: 60px 0 48px;
            text-align: center;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.15;
            margin-bottom: 16px;
        }
        .hero h1 i {
            color: var(--gold);
            margin-right: 12px;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 720px;
            margin: 0 auto 20px;
            opacity: 0.9;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 24px;
            font-size: 0.9rem;
            opacity: 0.75;
        }
        .hero-meta i {
            margin-right: 6px;
        }
        .page-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0 60px;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 1rem;
            margin-bottom: 12px;
            border-bottom: 2px solid var(--gold);
            padding-bottom: 8px;
            display: inline-block;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card li {
            margin-bottom: 8px;
        }
        .sidebar-card li a {
            font-size: 0.9rem;
        }
        .content-section {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 36px;
            box-shadow: var(--shadow);
            margin-bottom: 32px;
        }
        .content-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--gold);
            display: inline-block;
        }
        .content-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--secondary);
            margin: 28px 0 12px;
        }
        .content-section h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--accent);
            margin: 20px 0 8px;
        }
        .content-section p {
            margin-bottom: 16px;
        }
        .content-section ul,
        .content-section ol {
            margin: 12px 0 20px 24px;
        }
        .content-section li {
            margin-bottom: 6px;
        }
        .content-section blockquote {
            border-left: 4px solid var(--gold);
            padding: 12px 20px;
            margin: 20px 0;
            background: #f9f9fc;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
            color: #444;
        }
        .content-section .highlight-box {
            background: linear-gradient(135deg, #fef3f5, #fff5f7);
            padding: 20px 24px;
            border-radius: var(--radius);
            border: 1px solid #fcd9de;
            margin: 20px 0;
        }
        .content-section .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }
        .content-section .stat-item {
            background: var(--primary);
            color: #fff;
            padding: 20px;
            border-radius: var(--radius);
            text-align: center;
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
        }
        .stat-item .label {
            font-size: 0.85rem;
            opacity: 0.8;
            margin-top: 4px;
        }
        .featured-image {
            margin: 24px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            background: #f5f5f7;
            padding: 10px 16px;
            font-size: 0.85rem;
            color: var(--muted);
            text-align: center;
        }
        .search-box {
            display: flex;
            gap: 8px;
            margin: 16px 0 24px;
            max-width: 500px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 50px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            border-color: var(--accent);
        }
        .search-box button {
            padding: 12px 24px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-box button:hover {
            background: var(--gold);
        }
        .comment-area,
        .rating-area {
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .comment-area h4,
        .rating-area h4 {
            margin-bottom: 12px;
        }
        .comment-area textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            font-family: var(--font);
            outline: none;
            transition: 0.2s;
        }
        .comment-area textarea:focus {
            border-color: var(--accent);
        }
        .comment-area .form-actions,
        .rating-area .form-actions {
            display: flex;
            gap: 12px;
            margin-top: 12px;
            flex-wrap: wrap;
        }
        .btn {
            padding: 10px 28px;
            border: none;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--gold);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--border);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            background: #f5f5ff;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 6px;
            justify-content: flex-end;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ddd;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 40px 0 24px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        .site-footer a:hover {
            color: var(--gold);
        }
        .site-footer ul {
            list-style: none;
        }
        .site-footer li {
            margin-bottom: 8px;
        }
        friend-link {
            display: block;
            padding: 16px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 16px;
            font-size: 0.9rem;
        }
        friend-link a {
            margin: 0 12px 0 4px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            opacity: 0.7;
        }
        @media (max-width: 992px) {
            .page-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 0 8px;
                gap: 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .content-section {
                padding: 20px 18px;
            }
            .content-section h2 {
                font-size: 1.6rem;
            }
            .content-section h3 {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                width: 100%;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
        }
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.9rem;
        }
        .data-table th,
        .data-table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        .data-table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .data-table tr:hover td {
            background: #f9f9fc;
        }
        .toc {
            background: #f9f9fc;
            border-radius: var(--radius);
            padding: 20px 24px;
            margin: 20px 0;
            border: 1px solid var(--border);
        }
        .toc h4 {
            margin-bottom: 10px;
        }
        .toc ol {
            margin: 0 0 0 20px;
        }
        .toc a {
            font-size: 0.9rem;
        }