*, *::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, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a { color: #0d6efd; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #0a58ca; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5rem; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; margin-top: 1.8rem; margin-bottom: 0.8rem; color: #0d1b2a; }
        h1 { font-size: 2.4rem; margin-top: 0; }
        h2 { font-size: 1.8rem; border-bottom: 3px solid #0d6efd; padding-bottom: 0.4rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; font-weight: 600; }
        p { margin-bottom: 1.2rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.2rem; }
        .site-header {
            background: linear-gradient(135deg, #0d1b2a, #1b2838);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0,0,0,0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s;
        }
        .my-logo:hover { transform: scale(1.02); text-decoration: none; }
        .my-logo small { font-size: 0.7rem; display: block; -webkit-text-fill-color: #aaa; color: #aaa; font-weight: 400; letter-spacing: 1px; }
        .nav-toggle { display: none; background: none; border: 2px solid rgba(255,255,255,0.3); color: #fff; font-size: 1.4rem; padding: 0.4rem 0.8rem; border-radius: 6px; cursor: pointer; }
        .nav-toggle:hover { border-color: #ffd200; }
        .main-nav { display: flex; gap: 0.2rem; flex-wrap: wrap; }
        .main-nav a {
            color: #e0e0e0;
            padding: 0.4rem 0.9rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover { background: rgba(255,255,255,0.12); color: #ffd200; text-decoration: none; }
        .main-nav a i { margin-right: 4px; }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.6rem 0;
            font-size: 0.85rem;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before { content: "›"; margin-right: 0.6rem; color: #6c757d; }
        .breadcrumb a { color: #0d6efd; }
        .breadcrumb .current { color: #495057; font-weight: 600; }
        .hero {
            background: linear-gradient(145deg, #0d1b2a 0%, #1b3a5c 100%);
            color: #fff;
            padding: 3rem 0 2.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 { font-size: 2.6rem; color: #fff; margin-bottom: 0.5rem; }
        .hero h1 span { background: linear-gradient(to right, #ffd200, #f7971e); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero .meta { display: flex; flex-wrap: wrap; gap: 1.5rem; font-size: 0.95rem; color: #c0d0e0; margin-top: 0.6rem; }
        .hero .meta i { margin-right: 6px; }
        .search-section { margin: 1.8rem 0; }
        .search-form {
            display: flex;
            max-width: 560px;
            margin: 0 auto;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            outline: none;
            background: #fff;
        }
        .search-form button {
            background: #0d6efd;
            color: #fff;
            border: none;
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover { background: #0a58ca; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-content { min-width: 0; }
        .sidebar { position: sticky; top: 100px; align-self: start; }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 2px 16px rgba(0,0,0,0.06);
            margin-bottom: 1.5rem;
        }
        .sidebar-card h3 { font-size: 1.1rem; margin-top: 0; border-bottom: 2px solid #e9ecef; padding-bottom: 0.6rem; }
        .sidebar-card ul { list-style: none; padding: 0; }
        .sidebar-card li { padding: 0.4rem 0; border-bottom: 1px solid #f1f3f5; }
        .sidebar-card li:last-child { border-bottom: none; }
        .sidebar-card a { font-size: 0.9rem; }
        .feature-img {
            border-radius: 16px;
            margin: 1.8rem 0;
            box-shadow: 0 4px 24px rgba(0,0,0,0.1);
            width: 100%;
        }
        .interaction-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem;
            margin: 2.5rem 0;
            box-shadow: 0 2px 16px rgba(0,0,0,0.05);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .comment-form textarea,
        .comment-form input,
        .score-form input,
        .score-form select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #ced4da;
            border-radius: 10px;
            font-size: 0.95rem;
            transition: border-color 0.2s;
            margin-bottom: 0.8rem;
        }
        .comment-form textarea:focus,
        .comment-form input:focus,
        .score-form select:focus { border-color: #0d6efd; outline: none; box-shadow: 0 0 0 3px rgba(13,110,253,0.15); }
        .comment-form textarea { min-height: 100px; resize: vertical; }
        .btn {
            background: #0d6efd;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover { background: #0a58ca; transform: translateY(-1px); }
        .btn i { margin-right: 6px; }
        .star-rating { display: flex; gap: 4px; font-size: 1.6rem; color: #ffc107; margin-bottom: 0.6rem; cursor: pointer; }
        .star-rating i { transition: transform 0.15s; }
        .star-rating i:hover { transform: scale(1.2); }
        .friend-links-section {
            background: #0d1b2a;
            color: #e0e0e0;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .friend-links-section h3 { color: #ffd200; margin-top: 0; font-size: 1.3rem; }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.06);
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            margin: 0.3rem 0.4rem;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        friend-link a { color: #c0d0e0; }
        friend-link a:hover { color: #ffd200; text-decoration: none; }
        .site-footer {
            background: #0a1520;
            color: #9aa8b9;
            padding: 1.8rem 0;
            font-size: 0.85rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .site-footer .copyright { text-align: center; margin-top: 0.6rem; }
        .site-footer a { color: #c0d0e0; }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
            .sidebar { position: static; }
            .interaction-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(13,27,42,0.98);
                padding: 0.8rem 1rem;
                border-radius: 12px;
                margin-top: 0.6rem;
                gap: 0.2rem;
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 0.6rem 0.8rem; border-radius: 8px; }
            .hero h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            .hero .meta { flex-direction: column; gap: 0.4rem; }
            .search-form input { padding: 0.7rem 1rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 0.9rem; }
            .hero { padding: 2rem 0 1.5rem; }
            .interaction-section { padding: 1.2rem; }
        }
        .text-muted { color: #6c757d; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .flex-center { display: flex; align-items: center; gap: 0.6rem; }
        .badge {
            display: inline-block;
            background: #0d6efd;
            color: #fff;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .badge-warning { background: #ffc107; color: #1a1a2e; }
        .highlight-box {
            background: #eef3ff;
            border-left: 4px solid #0d6efd;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .table-wrap { overflow-x: auto; }
        table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; }
        th, td { padding: 0.7rem 1rem; border: 1px solid #dee2e6; text-align: left; }
        th { background: #0d1b2a; color: #fff; font-weight: 600; }
        td { background: #fff; }
        .toc {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            box-shadow: 0 2px 16px rgba(0,0,0,0.06);
            margin: 1.5rem 0;
        }
        .toc ol { padding-left: 1.2rem; }
        .toc li { margin: 0.3rem 0; }