*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            background: #0b0e14;
            color: #e8edf3;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #f5c542;
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ffd966;
            opacity: 0.9;
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid #f5c542;
            outline-offset: 2px;
            border-radius: 2px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #f0f4fa;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
            border-bottom: 3px solid #f5c542;
            padding-bottom: 0.25em;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #f5c542;
            padding-left: 0.7rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
            color: #d4dce8;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        strong,
        b {
            color: #f5d98a;
            font-weight: 700;
        }
        em {
            font-style: italic;
            color: #cbd5e1;
        }
        blockquote {
            border-left: 4px solid #f5c542;
            background: #1a1f2a;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #d4dce8;
        }
        hr {
            border: none;
            height: 1px;
            background: linear-gradient(90deg, #f5c54233, #f5c54299, #f5c54233);
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: #131a24;
            border-bottom: 2px solid #2a3545;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background: rgba(12, 18, 26, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f5c542, #e6a800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #f5c542;
            font-size: 1.6rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #aab;
            letter-spacing: 0.3px;
            display: block;
            margin-left: 0.2rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #f5c542;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #1f2a36;
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.2rem 0.8rem;
        }
        .main-nav a {
            color: #ccd7e6;
            font-weight: 500;
            padding: 0.4rem 0.6rem;
            border-radius: 6px;
            font-size: 0.95rem;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #1f2a36;
            color: #f5c542;
            text-decoration: none;
        }
        .main-nav .nav-icon {
            margin-right: 0.3rem;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #0f151e;
            padding: 0.6rem 0;
            border-bottom: 1px solid #1e2a36;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #6a7a8e;
            margin-right: 0.5rem;
        }
        .breadcrumb a {
            color: #9aabbc;
        }
        .breadcrumb a:hover {
            color: #f5c542;
        }
        .breadcrumb .current {
            color: #f5c542;
            font-weight: 500;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .article-wrapper {
            max-width: 880px;
            margin: 0 auto;
        }
        .search-section {
            background: #151e2a;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin-bottom: 2.5rem;
            border: 1px solid #2a3a4a;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .search-section label {
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.05rem;
        }
        .search-form {
            display: flex;
            flex: 1 1 280px;
            gap: 0.5rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 1px solid #2f4055;
            border-radius: 30px;
            background: #0d141f;
            color: #e8edf3;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f5c542;
            box-shadow: 0 0 0 3px #f5c54233;
            outline: none;
        }
        .search-form button {
            background: #f5c542;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 1.4rem;
            font-weight: 700;
            color: #0b0e14;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 1rem;
        }
        .search-form button:hover {
            background: #ffd966;
            transform: scale(1.02);
        }
        .search-form button:active {
            transform: scale(0.97);
        }
        .interaction-area {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin: 2.5rem 0;
            padding: 2rem 0;
            border-top: 1px solid #253040;
            border-bottom: 1px solid #253040;
        }
        .rating-box,
        .comment-box {
            flex: 1 1 260px;
            background: #141e2b;
            border-radius: 16px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #2a3a4a;
        }
        .rating-box h3,
        .comment-box h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-left: none;
            padding-left: 0;
            margin-bottom: 1rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin-bottom: 1rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #3a4a5a;
            cursor: pointer;
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5c542;
            transform: scale(1.1);
        }
        .star-rating input:checked~label {
            color: #f5c542;
        }
        .rating-form button,
        .comment-form button {
            background: #f5c542;
            border: none;
            border-radius: 30px;
            padding: 0.6rem 1.5rem;
            font-weight: 700;
            color: #0b0e14;
            cursor: pointer;
            transition: background 0.25s;
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background: #ffd966;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #2f4055;
            border-radius: 12px;
            background: #0d141f;
            color: #e8edf3;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            transition: border 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #f5c542;
            outline: none;
            box-shadow: 0 0 0 3px #f5c54222;
        }
        .comment-form .input-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 0.6rem;
            align-items: center;
        }
        .comment-form .input-group input {
            flex: 1 1 140px;
            padding: 0.6rem 1rem;
            border: 1px solid #2f4055;
            border-radius: 30px;
            background: #0d141f;
            color: #e8edf3;
        }
        .comment-form .input-group input:focus {
            border-color: #f5c542;
            outline: none;
        }
        .featured-image {
            margin: 2rem 0 2.5rem;
            border-radius: 18px;
            overflow: hidden;
            border: 1px solid #253040;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 1200/630;
            object-fit: cover;
            background: #1a2330;
        }
        .featured-image figcaption {
            background: #101a26;
            padding: 0.7rem 1.2rem;
            font-size: 0.9rem;
            color: #9aabbc;
            border-top: 1px solid #1e2a36;
        }
        .toc {
            background: #141e2b;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0 2.5rem;
            border: 1px solid #2a3a4a;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-left: none;
            padding-left: 0;
        }
        .toc ul {
            list-style: none;
            margin: 0.6rem 0 0;
            padding: 0;
            columns: 1;
        }
        .toc li {
            margin-bottom: 0.4rem;
        }
        .toc a {
            color: #c8d6e8;
            display: inline-block;
            padding: 0.2rem 0;
        }
        .toc a:hover {
            color: #f5c542;
        }
        .toc .toc-h2 {
            font-weight: 600;
        }
        .toc .toc-h3 {
            padding-left: 1.5rem;
            font-size: 0.95rem;
        }
        .toc .toc-h4 {
            padding-left: 2.8rem;
            font-size: 0.9rem;
            color: #9aabbc;
        }
        .site-footer {
            background: #0d121c;
            border-top: 2px solid #1e2a36;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem 1.5rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #f0f4fa;
            border-bottom: 1px solid #253040;
            padding-bottom: 0.4rem;
        }
        .footer-grid a {
            display: block;
            padding: 0.2rem 0;
            font-size: 0.95rem;
        }
        friend-link {
            display: block;
            background: #151e2a;
            border-radius: 12px;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0 1rem;
            border: 1px solid #253040;
        }
        friend-link h4 {
            margin-top: 0;
            font-size: 1rem;
            color: #f5c542;
        }
        friend-link ul {
            list-style: none;
            margin: 0.5rem 0 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
        }
        friend-link li {
            margin: 0;
        }
        .copyright {
            text-align: center;
            font-size: 0.9rem;
            color: #6a7a8e;
            border-top: 1px solid #1a2533;
            padding-top: 1.5rem;
            margin-top: 1rem;
        }
        .copyright strong {
            color: #9aabbc;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 1rem 0 0.5rem;
                gap: 0.3rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 0.5rem 0.8rem;
                border-radius: 6px;
            }
            .search-section {
                padding: 1.2rem 1.2rem;
                flex-direction: column;
                align-items: stretch;
            }
            .search-form {
                flex: 1 1 auto;
            }
            .interaction-area {
                flex-direction: column;
                gap: 1.5rem;
            }
            .toc {
                padding: 1.2rem 1.2rem;
            }
            .toc ul {
                columns: 1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-box,
            .comment-box {
                padding: 1.2rem;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
            .search-form input[type="text"] {
                font-size: 0.9rem;
                padding: 0.5rem 0.9rem;
            }
            .search-form button {
                padding: 0.5rem 1rem;
                font-size: 0.9rem;
            }
        }
        .text-highlight {
            color: #f5c542;
        }
        .badge {
            display: inline-block;
            background: #f5c54222;
            color: #f5c542;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid #f5c54244;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: #151e2a;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            text-align: center;
            border: 1px solid #253040;
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: #f5c542;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #9aabbc;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #f5c542;
            color: #0b0e14;
            font-weight: 700;
            padding: 0.5rem 1.4rem;
            border-radius: 30px;
            border: none;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-size: 0.95rem;
            text-decoration: none;
        }
        .btn:hover {
            background: #ffd966;
            transform: scale(1.02);
            text-decoration: none;
            color: #0b0e14;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #f5c542;
            color: #f5c542;
        }
        .btn-outline:hover {
            background: #f5c54222;
            color: #f5c542;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-2 {
            margin-bottom: 1.2rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }