*,
        *::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: #f8f6f2;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #d97706;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b45309;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #1a1a2e;
            margin-top: 1.6rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #d97706;
            padding-left: 1rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.1rem;
            color: #3a3a5a;
            margin-top: 1.2rem;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .badge {
            display: inline-block;
            background: #d97706;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fbbf24;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 10px rgba(251, 191, 36, 0.2);
            transition: transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #fcd34d;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 1.6rem;
            color: #f59e0b;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 1.5rem;
            padding: 0.3rem 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: 1.6rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e0e0f0;
            font-weight: 500;
            font-size: 0.92rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-menu a:hover {
            color: #fbbf24;
            border-bottom-color: #fbbf24;
            text-decoration: none;
        }
        .breadcrumb {
            background: #f1ede8;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #e0dbd4;
        }
        .breadcrumb a {
            color: #6b5b4f;
        }
        .breadcrumb a:hover {
            color: #d97706;
            text-decoration: none;
        }
        .breadcrumb span {
            color: #8a7a6a;
            margin: 0 0.3rem;
        }
        .breadcrumb .current {
            color: #1e1e1e;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
            color: #fff;
            padding: 2.4rem 0 2.8rem;
            margin-bottom: 1.6rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            color: #fbbf24;
            font-size: 2.8rem;
            margin: 0 0 0.6rem;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .hero p {
            font-size: 1.1rem;
            color: #d0d8f0;
            max-width: 720px;
            opacity: 0.9;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.6rem;
            font-size: 0.9rem;
            color: #aab4d6;
            margin-top: 0.8rem;
        }
        .hero-meta i {
            margin-right: 5px;
            color: #f59e0b;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.4rem;
            padding: 1.2rem 0 2.4rem;
        }
        .content-main {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .content-main img {
            margin: 1.6rem 0;
            border-radius: 16px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .content-main blockquote {
            border-left: 4px solid #d97706;
            background: #fdf8f0;
            padding: 1rem 1.6rem;
            margin: 1.4rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3a3a4a;
        }
        .content-main blockquote strong {
            color: #1a1a2e;
        }
        .highlight-box {
            background: #f0f7ff;
            border: 1px solid #c7dfff;
            border-radius: 14px;
            padding: 1.4rem 1.8rem;
            margin: 1.6rem 0;
        }
        .highlight-box h4 {
            margin-top: 0;
            color: #1e40af;
        }
        .stat-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            justify-content: space-between;
            margin: 1.6rem 0;
        }
        .stat-card {
            flex: 1 1 140px;
            background: #f5f2ed;
            border-radius: 14px;
            padding: 1.2rem;
            text-align: center;
            border: 1px solid #e6dfd7;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #d97706;
        }
        .stat-card .label {
            font-size: 0.82rem;
            color: #5a4e42;
            font-weight: 500;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.4rem 1.6rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 1.6rem;
            border: 1px solid #efeae2;
        }
        .sidebar-card h4 {
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #fbbf24;
            padding-bottom: 0.4rem;
            display: inline-block;
        }
        .sidebar-links a {
            display: block;
            padding: 0.4rem 0;
            border-bottom: 1px dashed #e8e2da;
            font-size: 0.92rem;
            color: #3a3a5a;
        }
        .sidebar-links a:hover {
            color: #d97706;
            text-decoration: none;
            padding-left: 4px;
        }
        .sidebar-links a i {
            color: #d97706;
            width: 18px;
            font-size: 0.8rem;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            margin: 1.2rem 0 0.8rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd6ce;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
            background: #faf8f5;
        }
        .search-form input:focus {
            border-color: #d97706;
            background: #fff;
        }
        .search-form button {
            background: #d97706;
            color: #fff;
            border: none;
            padding: 0 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .search-form button:hover {
            background: #b45309;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.9rem;
            cursor: pointer;
            color: #d1c9c0;
            transition: 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f59e0b;
        }
        .rating-stars i.active~i {
            color: #d1c9c0;
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.15);
            color: #f59e0b;
        }
        .comment-box textarea {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #ddd6ce;
            border-radius: 14px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            transition: 0.2s;
            background: #faf8f5;
        }
        .comment-box textarea:focus {
            border-color: #d97706;
            background: #fff;
            outline: none;
        }
        .comment-box .btn-submit {
            background: #1a1a2e;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            margin-top: 0.6rem;
        }
        .comment-box .btn-submit:hover {
            background: #302b63;
            transform: scale(1.02);
        }
        .site-footer {
            background: #1a1a2e;
            color: #c8c4d8;
            padding: 2.4rem 0 1.2rem;
            margin-top: 2.4rem;
            border-radius: 40px 40px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .site-footer a {
            color: #fbbf24;
        }
        .site-footer a:hover {
            color: #fcd34d;
        }
        .friend-link {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.92rem;
        }
        .friend-link i {
            margin-right: 6px;
            color: #f59e0b;
            font-size: 0.75rem;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid #2a2a4a;
            padding-top: 1.4rem;
            margin-top: 1.6rem;
            font-size: 0.85rem;
            color: #8a86a0;
        }
        @media (max-width: 820px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-main {
                padding: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(15, 12, 41, 0.98);
                padding: 1rem 0 1.4rem;
                border-radius: 0 0 16px 16px;
                gap: 0.6rem;
                align-items: flex-start;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu a {
                padding: 0.4rem 1.2rem;
                width: 100%;
            }
            .hero {
                padding: 1.6rem 0 2rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .content-main {
                padding: 1rem 1.2rem;
            }
            .stat-row {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 420px) {
            .container {
                padding: 0 0.8rem;
            }
            .content-main {
                padding: 0.8rem 0.9rem;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            background: #faf8f5;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e8e2da;
        }
        th {
            background: #1a1a2e;
            color: #fbbf24;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .toc {
            background: #f5f2ed;
            border-radius: 14px;
            padding: 1.2rem 1.8rem;
            margin: 1.2rem 0 1.8rem;
        }
        .toc ol {
            margin: 0;
            padding-left: 1.4rem;
        }
        .toc li {
            padding: 0.2rem 0;
        }
        .toc a {
            color: #3a3a5a;
        }
        .toc a:hover {
            color: #d97706;
        }
        .btn-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #d97706;
            color: #fff;
            border: none;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 6px 20px rgba(217, 119, 6, 0.3);
            transition: 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 99;
            opacity: 0;
            pointer-events: none;
        }
        .btn-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .btn-top:hover {
            background: #b45309;
            transform: translateY(-3px);
        }