*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1e40af;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.35rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #fff;
            padding: 1rem 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: 0.75rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #facc15, #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #f97316;
            margin-right: 0.3rem;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            color: #e2e8f0;
            padding: 0.5rem 0.9rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .nav-bar a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #facc15;
            text-decoration: none;
        }
        .nav-bar a i {
            margin-right: 0.35rem;
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-nav {
            display: none;
            width: 100%;
            flex-direction: column;
            background: #1e293b;
            border-radius: 12px;
            padding: 0.75rem 0.5rem;
            margin-top: 0.5rem;
            gap: 0.25rem;
        }
        .mobile-nav a {
            color: #e2e8f0;
            padding: 0.65rem 1rem;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: background 0.2s;
        }
        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            text-decoration: none;
        }
        .mobile-nav.show {
            display: flex;
        }
        .breadcrumb {
            background: #fff;
            padding: 0.6rem 0;
            border-bottom: 1px solid #e2e8f0;
            font-size: 0.85rem;
            color: #475569;
        }
        .breadcrumb-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.5rem;
        }
        .breadcrumb-inner a {
            color: #2563eb;
        }
        .breadcrumb-inner span {
            color: #64748b;
        }
        main {
            padding: 2rem 0 3rem;
        }
        article {
            background: #fff;
            border-radius: 20px;
            padding: 2.5rem 2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 0.75rem;
            color: #0f172a;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #f97316;
            margin-right: 0.4rem;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            font-size: 0.9rem;
            color: #64748b;
            margin-bottom: 1.8rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eef2f6;
        }
        .article-meta i {
            margin-right: 0.35rem;
            color: #94a3b8;
        }
        .last-updated {
            font-weight: 600;
            color: #1e293b;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 2.2rem 0 1rem 0;
            color: #0f172a;
            border-left: 5px solid #f97316;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem 0;
            color: #1e293b;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1.4rem 0 0.5rem 0;
            color: #334155;
        }
        p {
            margin-bottom: 1.15rem;
            color: #1e293b;
        }
        .highlight {
            background: #fef9c3;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
        }
        .featured-image {
            margin: 1.8rem 0 2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.6rem 1rem;
            background: #f8fafc;
            font-size: 0.85rem;
            color: #64748b;
            border-top: 1px solid #eef2f6;
        }
        .link-list {
            background: #f8fafc;
            border-radius: 14px;
            padding: 1.5rem 1.8rem;
            margin: 1.5rem 0;
            border-left: 4px solid #2563eb;
        }
        .link-list h4 {
            margin-top: 0;
            color: #0f172a;
        }
        .link-list ul {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.4rem 1.2rem;
        }
        .link-list li {
            padding: 0.15rem 0;
        }
        .link-list li a {
            font-weight: 500;
        }
        .link-list li a i {
            margin-right: 0.4rem;
            color: #f97316;
            font-size: 0.8rem;
        }
        .search-section {
            background: #f1f5f9;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0 1.5rem;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            margin-top: 0.5rem;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
            background: #fff;
        }
        .search-form input:focus {
            border-color: #2563eb;
        }
        .search-form button {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 0.75rem 1.8rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #1e40af;
            transform: scale(1.02);
        }
        .review-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0 1.5rem;
        }
        .review-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #eef2f6;
        }
        .review-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .review-card textarea,
        .review-card input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border-color 0.2s;
            margin-bottom: 0.75rem;
            background: #fff;
        }
        .review-card textarea:focus,
        .review-card input:focus {
            border-color: #2563eb;
        }
        .review-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .review-card button {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .review-card button:hover {
            background: #1e293b;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #d1d5db;
            cursor: pointer;
            margin-bottom: 0.75rem;
        }
        .star-rating .star {
            transition: color 0.15s, transform 0.15s;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #facc15;
            transform: scale(1.1);
        }
        .rating-value {
            font-weight: 700;
            color: #0f172a;
            margin-left: 0.5rem;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .footer-col h4 {
            color: #f1f5f9;
            margin-bottom: 0.8rem;
            font-size: 1.05rem;
        }
        .footer-col a {
            color: #94a3b8;
            display: block;
            padding: 0.2rem 0;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #facc15;
            text-decoration: none;
        }
        .footer-col a i {
            margin-right: 0.4rem;
            font-size: 0.75rem;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            padding: 0.2rem 0.5rem 0.2rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 1.8rem;
            border-top: 1px solid #1e293b;
            font-size: 0.85rem;
            color: #64748b;
        }
        .copyright strong {
            color: #94a3b8;
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 900px) {
            article {
                padding: 1.8rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.45rem;
            }
            .review-section {
                grid-template-columns: 1fr;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 700px) {
            .nav-bar {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .featured-image img {
                max-height: 260px;
                object-fit: cover;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            article {
                padding: 1.2rem 0.9rem;
                border-radius: 14px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .breadcrumb-inner {
                font-size: 0.75rem;
            }
            .review-card {
                padding: 1rem;
            }
        }
        .toc {
            background: #f8fafc;
            border-radius: 14px;
            padding: 1.2rem 1.5rem;
            margin: 1.2rem 0 1.8rem;
            border: 1px solid #eef2f6;
        }
        .toc h3 {
            margin: 0 0 0.5rem;
        }
        .toc ul {
            list-style: none;
            padding: 0;
            columns: 2 220px;
            column-gap: 1.2rem;
        }
        .toc li {
            padding: 0.15rem 0;
            break-inside: avoid;
        }
        .toc li a {
            color: #1e293b;
            font-weight: 500;
        }
        .toc li a:hover {
            color: #f97316;
        }
        .btn-back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #0f172a;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transition: background 0.2s, transform 0.2s;
            z-index: 50;
            border: none;
            cursor: pointer;
        }
        .btn-back-top:hover {
            background: #f97316;
            transform: translateY(-4px);
        }
        .btn-back-top i {
            color: #fff;
        }
        blockquote {
            border-left: 4px solid #f97316;
            background: #fef9e7;
            padding: 0.8rem 1.2rem;
            margin: 1.2rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #334155;
        }
        blockquote strong {
            color: #0f172a;
        }
        .code-inline {
            background: #eef2f6;
            padding: 0.15rem 0.5rem;
            border-radius: 6px;
            font-family: 'SF Mono', 'Fira Code', monospace;
            font-size: 0.9rem;
            color: #1e293b;
        }
        .tip-box {
            background: #e0f2fe;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin: 1rem 0;
            border-left: 4px solid #0ea5e9;
        }
        .tip-box strong {
            color: #0369a1;
        }
        .warning-box {
            background: #fef3c7;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin: 1rem 0;
            border-left: 4px solid #f59e0b;
        }