*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fa;
            color: #1e293b;
            line-height: 1.75;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0d6efd;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0a58ca;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.35rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0f172a;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 3px solid #2563eb;
            padding-bottom: 0.3rem;
            display: inline-block;
        }
        h3 {
            font-size: 1.3rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        strong {
            color: #0f172a;
            font-weight: 700;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fbbf24;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
            transition: opacity 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
            color: #fbbf24;
        }
        .my-logo i {
            font-size: 1.8rem;
            color: #4ade80;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .main-nav li a {
            color: #e2e8f0;
            padding: 0.5rem 0.9rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            display: block;
        }
        .main-nav li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fbbf24;
            text-decoration: none;
        }
        .main-nav li a i {
            margin-right: 0.35rem;
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.7rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.25s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .breadcrumb-wrap {
            background: #ecedf0;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d4d6dd;
        }
        .breadcrumb-wrap .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.3rem;
        }
        .breadcrumb-wrap a {
            color: #2563eb;
            font-weight: 500;
        }
        .breadcrumb-wrap span {
            color: #475569;
        }
        .breadcrumb-wrap .sep {
            margin: 0 0.3rem;
            color: #94a3b8;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .article-body {
            background: #ffffff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
            margin-bottom: 2.5rem;
        }
        .article-body .meta-info {
            font-size: 0.95rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #e9eaee;
            padding-bottom: 1rem;
        }
        .article-body .meta-info i {
            margin-right: 0.4rem;
            color: #2563eb;
        }
        .featured-image {
            margin: 1.5rem 0 2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.5rem 1rem;
            background: #f1f5f9;
            font-size: 0.88rem;
            color: #475569;
            font-style: italic;
        }
        .search-section {
            background: #f1f5f9;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
            border: 1px solid #e2e8f0;
        }
        .search-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #d4d6dd;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s, box-shadow 0.25s;
            background: #fff;
        }
        .search-form input[type="text"]:focus {
            border-color: #2563eb;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
        }
        .search-form button {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        .comments-section {
            background: #ffffff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
        }
        .comments-section h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 110px;
            padding: 1rem;
            border: 2px solid #d4d6dd;
            border-radius: 14px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: border 0.25s, box-shadow 0.25s;
        }
        .comment-form textarea:focus {
            border-color: #2563eb;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
        }
        .comment-form .form-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #d4d6dd;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
        }
        .comment-form .form-row input:focus {
            border-color: #2563eb;
        }
        .comment-form button {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-form button:hover {
            background: #1e293b;
            transform: scale(1.02);
        }
        .rating-section {
            background: #ffffff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .rating-section h3 {
            margin-top: 0;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.6rem;
            font-size: 2.6rem;
            margin: 1rem 0 1.2rem;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d1d5db;
            cursor: pointer;
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #fbbf24;
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        .rating-section .score-btn {
            background: #fbbf24;
            color: #0f172a;
            border: none;
            padding: 0.7rem 2.5rem;
            border-radius: 40px;
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .rating-section .score-btn:hover {
            background: #f59e0b;
            transform: scale(1.03);
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2rem 0 1.2rem;
            font-size: 0.95rem;
            border-top: 4px solid #2563eb;
        }
        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.8rem 3rem;
            justify-content: center;
        }
        .footer-links .link-group {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }
        .footer-links .link-group strong {
            color: #fbbf24;
            font-size: 1rem;
            margin-bottom: 0.2rem;
        }
        .footer-links a {
            color: #94a3b8;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fbbf24;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid #1e293b;
            font-size: 0.88rem;
            color: #64748b;
        }
        .copyright strong {
            color: #e2e8f0;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.5rem;
            background: #1a2332;
            padding: 1rem 1.5rem;
            border-radius: 12px;
            margin-top: 0.5rem;
            justify-content: center;
            font-size: 0.92rem;
        }
        friend-link a {
            color: #93b4f5;
            font-weight: 500;
        }
        friend-link a:hover {
            color: #fbbf24;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a2332;
                border-radius: 12px;
                padding: 0.8rem;
                margin-top: 0.6rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li a {
                padding: 0.7rem 1rem;
                border-radius: 6px;
            }
            .header-inner {
                gap: 0.4rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            .article-body .meta-info {
                flex-direction: column;
                gap: 0.4rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .search-section {
                padding: 1.2rem 1rem;
            }
            .comments-section {
                padding: 1.2rem 1rem;
            }
            .rating-section {
                padding: 1.2rem 1rem;
            }
            .star-rating {
                font-size: 2rem;
            }
            .footer-links {
                flex-direction: column;
                align-items: center;
                gap: 1.2rem;
            }
            .footer-links .link-group {
                align-items: center;
                text-align: center;
            }
            friend-link {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo i {
                font-size: 1.3rem;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.15rem;
            }
            p {
                font-size: 0.98rem;
            }
            .article-body {
                padding: 1rem 0.8rem;
            }
            .breadcrumb-wrap {
                font-size: 0.78rem;
            }
        }
        .text-accent {
            color: #2563eb;
        }
        .bg-soft {
            background: #f8fafc;
        }
        .rounded-lg {
            border-radius: 12px;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #fbbf24;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th {
            background: #0f172a;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        table tr:nth-child(even) {
            background: #f8fafc;
        }
        .anchor-offset {
            scroll-margin-top: 80px;
        }
        code {
            background: #eef2f6;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            font-size: 0.92rem;
            color: #0f172a;
            font-family: 'JetBrains Mono', 'Fira Code', monospace;
        }
        pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            overflow-x: auto;
            font-size: 0.92rem;
            margin: 1.2rem 0;
            line-height: 1.6;
        }
        pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }