*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 1.05rem;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #1e40af;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            color: #0f172a;
        }
        h1 {
            font-size: 2.6rem;
            margin-bottom: 0.75rem;
        }
        h2 {
            font-size: 2.0rem;
            margin-top: 3rem;
            margin-bottom: 0.6rem;
            border-bottom: 3px solid #2563eb20;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2.2rem;
            margin-bottom: 0.5rem;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.6rem;
            margin-bottom: 0.3rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #fff;
            padding: 0.6rem 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: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, #facc15, #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #facc15;
            font-size: 1.6rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-menu {
            display: flex;
            gap: 0.1rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e2e8f0;
            padding: 0.5rem 1.1rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: #2563eb;
            color: #fff;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 0.7rem 0;
            font-size: 0.88rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.2rem;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: #94a3b8;
            font-size: 1.2rem;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb a:hover {
            color: #2563eb;
        }
        .breadcrumb .current {
            color: #0f172a;
            font-weight: 600;
        }
        .main-content {
            padding: 2.5rem 0 4rem;
        }
        .featured-image {
            margin: 1.8rem 0 2.5rem;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        .featured-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .last-updated {
            display: inline-block;
            background: #eef2ff;
            color: #4338ca;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.2rem;
            border: 1px solid #c7d2fe;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .search-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 2rem 2rem 2.2rem;
            margin: 2.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
        }
        .search-section h3 {
            margin-top: 0;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
            gap: 12px;
            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 #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
            background: #f8fafc;
        }
        .search-form input[type="text"]:focus {
            border-color: #2563eb;
            background: #fff;
            box-shadow: 0 0 0 4px #2563eb20;
        }
        .search-form button {
            padding: 0.8rem 2rem;
            background: #2563eb;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        .comment-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 2rem 2rem 2.2rem;
            margin: 2.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
        }
        .comment-section h3 {
            margin-top: 0;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 0.8rem;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 110px;
            padding: 1rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: 0.2s;
            background: #f8fafc;
        }
        .comment-form textarea:focus {
            border-color: #2563eb;
            background: #fff;
            box-shadow: 0 0 0 4px #2563eb20;
        }
        .comment-form .row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .comment-form input[type="text"] {
            flex: 1;
            min-width: 160px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
            background: #f8fafc;
        }
        .comment-form input[type="text"]:focus {
            border-color: #2563eb;
            background: #fff;
            box-shadow: 0 0 0 4px #2563eb20;
        }
        .comment-form button {
            align-self: flex-start;
            padding: 0.75rem 2.2rem;
            background: #0f172a;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form button:hover {
            background: #1e293b;
            transform: scale(1.02);
        }
        .score-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 2rem 2rem 2.2rem;
            margin: 2.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
        }
        .score-section h3 {
            margin-top: 0;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .score-stars {
            display: flex;
            gap: 6px;
            font-size: 2.2rem;
            color: #d1d5db;
            cursor: pointer;
            margin: 0.6rem 0 1rem;
            flex-wrap: wrap;
        }
        .score-stars i {
            transition: 0.15s;
        }
        .score-stars i:hover,
        .score-stars i.hover {
            color: #facc15;
            transform: scale(1.1);
        }
        .score-stars i.selected {
            color: #facc15;
        }
        .score-form {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-top: 0.4rem;
        }
        .score-form input[type="text"] {
            flex: 1;
            min-width: 160px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
            background: #f8fafc;
        }
        .score-form input[type="text"]:focus {
            border-color: #2563eb;
            background: #fff;
            box-shadow: 0 0 0 4px #2563eb20;
        }
        .score-form button {
            padding: 0.75rem 2rem;
            background: #facc15;
            color: #0f172a;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .score-form button:hover {
            background: #f59e0b;
            transform: scale(1.02);
        }
        .score-display {
            margin-top: 1rem;
            font-size: 1.1rem;
            font-weight: 500;
            color: #475569;
        }
        .score-display span {
            color: #0f172a;
            font-weight: 700;
        }
        .toc {
            background: #f1f5f9;
            border-radius: 14px;
            padding: 1.6rem 2rem;
            margin: 2.2rem 0 2.8rem;
            border-left: 5px solid #2563eb;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .toc ul {
            list-style: none;
            padding-left: 0.2rem;
            columns: 2 240px;
            column-gap: 2rem;
        }
        .toc li {
            margin: 0.35rem 0;
            break-inside: avoid;
        }
        .toc a {
            color: #1e293b;
            font-weight: 500;
            display: inline-block;
            padding: 0.15rem 0;
        }
        .toc a:hover {
            color: #2563eb;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 3rem 0 2rem;
            margin-top: 3rem;
            border-top: 4px solid #2563eb30;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-inner h4 {
            color: #fff;
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-bottom: 2px solid #334155;
            padding-bottom: 0.5rem;
        }
        .footer-inner p {
            font-size: 0.95rem;
            color: #94a3b8;
        }
        friend-link {
            display: block;
            margin-top: 0.6rem;
        }
        friend-link a {
            display: inline-block;
            color: #94a3b8;
            padding: 0.25rem 0;
            font-size: 0.95rem;
            border-bottom: 1px dotted #334155;
        }
        friend-link a:hover {
            color: #facc15;
            border-bottom-color: #facc15;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 2rem;
            margin-top: 1.5rem;
            border-top: 1px solid #1e293b;
            font-size: 0.88rem;
            color: #64748b;
        }
        .copyright strong {
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.0rem;
            }
            h2 {
                font-size: 1.6rem;
                margin-top: 2.2rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            h4 {
                font-size: 1.05rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1e293b;
                padding: 0.8rem 0.6rem;
                border-radius: 12px;
                margin-top: 0.4rem;
                gap: 0.2rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
                width: 100%;
            }
            .breadcrumb ol {
                font-size: 0.82rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input[type="text"] {
                min-width: auto;
            }
            .comment-form .row {
                flex-direction: column;
            }
            .score-form {
                flex-direction: column;
                align-items: stretch;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .toc ul {
                columns: 1;
            }
            .featured-image img {
                max-height: 260px;
            }
            .search-section,
            .comment-section,
            .score-section {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.7rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .last-updated {
                font-size: 0.75rem;
                padding: 0.2rem 1rem;
            }
        }
        .text-muted {
            color: #64748b;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .emoji-lg {
            font-size: 1.6rem;
        }
        .highlight {
            background: linear-gradient(120deg, #fef9c3 0%, #fef9c3 40%, #fde68a 100%);
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .card {
            background: #fff;
            border-radius: 14px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
            transition: 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
        }
        .card i {
            font-size: 2rem;
            color: #2563eb;
            margin-bottom: 0.6rem;
        }
        .card h4 {
            margin-top: 0;
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-up {
            animation: fadeUp 0.6s ease forwards;
        }