*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: #f8faff;
            color: #1e2a3a;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { color: #0b6bcb; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #084a8a; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: 12px; }
        h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; color: #0a1a2b; }
        h1 { font-size: 2.4rem; margin-bottom: 0.75rem; }
        h2 { font-size: 1.8rem; margin: 2.5rem 0 1rem; border-left: 5px solid #0b6bcb; padding-left: 1rem; }
        h3 { font-size: 1.4rem; margin: 2rem 0 0.75rem; }
        h4 { font-size: 1.2rem; margin: 1.5rem 0 0.5rem; font-weight: 600; }
        p { margin-bottom: 1.2rem; }
        ul, ol { margin: 0.8rem 0 1.5rem 1.8rem; }
        li { margin-bottom: 0.4rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; width: 100%; }
        .badge { background: #eef4ff; padding: 0.25rem 0.8rem; border-radius: 30px; font-size: 0.85rem; color: #0b6bcb; font-weight: 600; }
        .site-header {
            background: linear-gradient(135deg, #0a1a2b 0%, #132b44 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(90deg, #6fc3ff, #b8dcff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover { text-decoration: none; opacity: 0.9; }
        .my-logo small { font-size: 0.9rem; font-weight: 400; -webkit-text-fill-color: #aac9e8; }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 0.3rem 0.6rem; }
        .main-nav { display: flex; align-items: center; gap: 1.2rem; }
        .main-nav a { color: #e0edff; font-size: 0.95rem; font-weight: 500; padding: 0.3rem 0.6rem; border-radius: 6px; transition: background 0.2s; }
        .main-nav a:hover { background: rgba(255,255,255,0.1); text-decoration: none; color: #fff; }
        .main-nav .active { background: rgba(255,255,255,0.12); color: #fff; }
        .breadcrumb-wrap { background: #eef4fa; padding: 0.5rem 0; font-size: 0.9rem; border-bottom: 1px solid #dce4ec; }
        .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem; list-style: none; margin: 0; padding: 0; }
        .breadcrumb li { margin: 0; }
        .breadcrumb li+li::before { content: "›"; margin: 0 0.4rem; color: #7f8fa0; }
        .breadcrumb a { color: #0b6bcb; }
        .breadcrumb .current { color: #4a5a6e; font-weight: 500; }
        .page-wrap { flex: 1; padding: 2rem 0 3rem; }
        .article-body { background: #fff; border-radius: 20px; padding: 2.5rem 2.8rem; box-shadow: 0 8px 40px rgba(0,0,0,0.04); margin-bottom: 2.5rem; }
        .article-body .meta { color: #5a6a7e; font-size: 0.95rem; margin-bottom: 1.8rem; display: flex; flex-wrap: wrap; gap: 1.2rem; }
        .article-body .meta i { margin-right: 0.3rem; }
        .featured-img { margin: 1.5rem 0 2.2rem; border-radius: 16px; box-shadow: 0 6px 24px rgba(0,0,0,0.06); }
        .featured-img figcaption { font-size: 0.9rem; color: #5a6a7e; text-align: center; margin-top: 0.5rem; font-style: italic; }
        .search-section { background: #eef4fa; border-radius: 16px; padding: 2rem 2.2rem; margin: 2.5rem 0; }
        .search-form { display: flex; gap: 0.8rem; flex-wrap: wrap; max-width: 600px; }
        .search-form input { flex: 1; min-width: 200px; padding: 0.8rem 1.2rem; border: 2px solid #d0dcec; border-radius: 40px; font-size: 1rem; outline: none; transition: border 0.2s; }
        .search-form input:focus { border-color: #0b6bcb; }
        .search-form button { background: #0b6bcb; color: #fff; border: none; padding: 0.8rem 1.8rem; border-radius: 40px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: background 0.2s; display: flex; align-items: center; gap: 0.5rem; }
        .search-form button:hover { background: #084a8a; }
        .comments-section { background: #fff; border-radius: 20px; padding: 2rem 2.5rem; box-shadow: 0 8px 30px rgba(0,0,0,0.04); margin: 2rem 0; }
        .comments-section h3 { margin-top: 0; }
        .comment-form textarea { width: 100%; padding: 1rem; border: 2px solid #dce4ec; border-radius: 12px; font-size: 1rem; resize: vertical; min-height: 100px; outline: none; transition: border 0.2s; font-family: inherit; }
        .comment-form textarea:focus { border-color: #0b6bcb; }
        .comment-form .form-row { display: flex; gap: 1rem; flex-wrap: wrap; margin: 0.8rem 0; }
        .comment-form .form-row input { flex: 1; min-width: 180px; padding: 0.7rem 1rem; border: 2px solid #dce4ec; border-radius: 10px; font-size: 1rem; outline: none; }
        .comment-form .form-row input:focus { border-color: #0b6bcb; }
        .comment-form button { background: #0b6bcb; color: #fff; border: none; padding: 0.7rem 2rem; border-radius: 30px; font-weight: 600; cursor: pointer; transition: background 0.2s; margin-top: 0.5rem; }
        .comment-form button:hover { background: #084a8a; }
        .rating-section { background: #f3f7fe; border-radius: 16px; padding: 1.8rem 2.2rem; margin: 2rem 0; display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }
        .rating-stars { display: flex; gap: 0.3rem; font-size: 1.8rem; color: #d0dcec; cursor: pointer; transition: color 0.15s; }
        .rating-stars i { transition: color 0.15s, transform 0.15s; }
        .rating-stars i:hover { color: #f5b342; transform: scale(1.15); }
        .rating-stars i.active { color: #f5b342; }
        .rating-form button { background: #0b6bcb; color: #fff; border: none; padding: 0.5rem 1.6rem; border-radius: 30px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
        .rating-form button:hover { background: #084a8a; }
        .related-links { background: #f8faff; border-radius: 16px; padding: 1.8rem 2rem; border: 1px solid #e8edf4; }
        .related-links h3 { margin-top: 0; font-size: 1.2rem; }
        .related-links ul { list-style: none; margin: 0; padding: 0; }
        .related-links li { margin: 0.6rem 0; padding: 0; }
        .related-links a { display: block; padding: 0.5rem 0.8rem; background: #fff; border-radius: 8px; border-left: 3px solid #0b6bcb; transition: background 0.2s, transform 0.15s; }
        .related-links a:hover { background: #eef4fa; transform: translateX(4px); text-decoration: none; }
        .site-footer {
            background: #0a1a2b;
            color: #b0c6dd;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-inner { display: flex; flex-direction: column; gap: 1.8rem; }
        .footer-links { display: flex; flex-wrap: wrap; gap: 1.2rem 2rem; justify-content: center; }
        .footer-links a { color: #b0c6dd; font-size: 0.95rem; }
        .footer-links a:hover { color: #fff; }
        friend-link { display: block; background: rgba(255,255,255,0.04); padding: 1.2rem 1.8rem; border-radius: 12px; text-align: center; }
        friend-link a { color: #8cb4e0; margin: 0 0.6rem; }
        friend-link a:hover { color: #fff; }
        .copyright { text-align: center; font-size: 0.9rem; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 1.5rem; margin-top: 0.5rem; }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .main-nav { display: none; width: 100%; flex-direction: column; align-items: stretch; padding-top: 0.8rem; gap: 0.3rem; }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 0.6rem 1rem; border-radius: 8px; }
            .article-body { padding: 1.5rem 1.2rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            .comments-section { padding: 1.5rem 1.2rem; }
            .rating-section { flex-direction: column; align-items: flex-start; }
            .search-form { flex-direction: column; }
            .search-form input { min-width: auto; }
            .header-inner { gap: 0.5rem; }
            .my-logo { font-size: 1.4rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 12px; }
            .article-body { padding: 1rem 0.8rem; }
            .breadcrumb-wrap { font-size: 0.8rem; }
        }
        .highlight { background: #f0f7ff; padding: 0.1rem 0.4rem; border-radius: 4px; }
        .emoji-big { font-size: 1.3rem; }
        .flex-between { display: flex; justify-content: space-between; flex-wrap: wrap; align-items: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .gap-1 { gap: 1rem; }
        .schema-hidden { display: none; }
        :target { scroll-margin-top: 80px; }