*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            display: flex; flex-direction: column; min-height: 100vh;
        }
        a { color: #c80000; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #8b0000; 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: #0b0b1a; }
        h1 { font-size: 2.4rem; margin-bottom: 0.75rem; }
        h2 { font-size: 1.8rem; margin: 2.2rem 0 0.8rem; border-left: 5px solid #c80000; padding-left: 1rem; }
        h3 { font-size: 1.35rem; margin: 1.6rem 0 0.5rem; color: #1e1e3a; }
        h4 { font-size: 1.1rem; margin: 1rem 0 0.3rem; color: #2a2a4a; }
        p { margin-bottom: 1rem; }
        ul, ol { margin: 0.5rem 0 1.2rem 1.8rem; }
        li { margin-bottom: 0.3rem; }
        hr { border: none; border-top: 2px solid #e0e0e8; margin: 2.5rem 0; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; width: 100%; }
        header {
            background: #0b0b1a;
            color: #fff;
            padding: 0.75rem 0;
            position: sticky; top: 0; z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem;
        }
        .my-logo {
            font-size: 1.8rem; font-weight: 900; color: #fff;
            letter-spacing: -0.5px; text-transform: uppercase;
            display: flex; align-items: center; gap: 0.4rem;
        }
        .my-logo i { color: #c80000; font-size: 1.6rem; }
        .my-logo:hover { color: #ffcccc; text-decoration: none; }
        .my-logo span { font-weight: 300; color: #aaa; }
        .hamburger { display: none; background: none; border: none; color: #fff; font-size: 1.8rem; cursor: pointer; padding: 0.25rem; }
        .hamburger:focus { outline: 2px solid #c80000; }
        nav#main-nav ul {
            display: flex; list-style: none; gap: 1.2rem; margin: 0; padding: 0;
            align-items: center;
        }
        nav#main-nav ul li a {
            color: #ddd; font-size: 0.95rem; font-weight: 500; padding: 0.25rem 0;
            border-bottom: 2px solid transparent; transition: 0.2s;
        }
        nav#main-nav ul li a:hover { color: #fff; border-bottom-color: #c80000; text-decoration: none; }
        nav#main-nav ul li a.active { color: #fff; border-bottom-color: #c80000; }
        .breadcrumb {
            background: #eaeef5; padding: 0.6rem 0; font-size: 0.85rem;
            border-bottom: 1px solid #d0d4de;
        }
        .breadcrumb .container { display: flex; flex-wrap: wrap; gap: 0.3rem; }
        .breadcrumb a { color: #2a4a7a; }
        .breadcrumb a:hover { color: #c80000; text-decoration: underline; }
        .breadcrumb span { color: #555; }
        .hero {
            background: linear-gradient(145deg, #0b0b1a 0%, #1a1a3a 100%);
            color: #fff; padding: 3rem 0 2.5rem; text-align: center;
            border-bottom: 4px solid #c80000;
        }
        .hero h1 { color: #fff; font-size: 2.8rem; margin-bottom: 0.5rem; }
        .hero h1 i { color: #c80000; margin-right: 0.3rem; }
        .hero p { font-size: 1.2rem; color: #ccc; max-width: 800px; margin: 0.5rem auto 0; }
        .hero .last-updated { display: block; margin-top: 1rem; font-size: 0.85rem; color: #888; }
        .search-bar {
            background: #fff; border-radius: 40px; padding: 0.4rem 0.4rem 0.4rem 1.5rem;
            display: flex; max-width: 500px; margin: 1.5rem auto 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }
        .search-bar input { flex: 1; border: none; padding: 0.5rem 0; font-size: 1rem; background: transparent; color: #1a1a2e; outline: none; }
        .search-bar input::placeholder { color: #999; }
        .search-bar button { background: #c80000; border: none; color: #fff; padding: 0.6rem 1.6rem; border-radius: 40px; font-weight: 600; cursor: pointer; transition: 0.2s; font-size: 0.95rem; }
        .search-bar button:hover { background: #8b0000; }
        main {
            flex: 1; padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem;
        }
        @media (max-width: 960px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        .article-body { background: #fff; padding: 2rem 2.5rem; border-radius: 16px; box-shadow: 0 4px 24px rgba(0,0,0,0.04); }
        .article-body img { margin: 1.5rem 0; border-radius: 12px; width: 100%; }
        .sidebar { background: #fff; padding: 1.8rem; border-radius: 16px; box-shadow: 0 4px 24px rgba(0,0,0,0.04); height: fit-content; position: sticky; top: 100px; }
        .sidebar h3 { font-size: 1.2rem; margin-bottom: 1rem; border-bottom: 2px solid #c80000; padding-bottom: 0.4rem; }
        .sidebar ul { list-style: none; margin: 0; padding: 0; }
        .sidebar ul li { margin-bottom: 0.5rem; }
        .sidebar ul li a { color: #2a4a7a; font-weight: 500; display: block; padding: 0.3rem 0; border-bottom: 1px solid #eee; }
        .sidebar ul li a:hover { color: #c80000; text-decoration: none; padding-left: 0.3rem; }
        .interaction-area { background: #fff; padding: 2rem 2.5rem; border-radius: 16px; box-shadow: 0 4px 24px rgba(0,0,0,0.04); margin-top: 2rem; }
        .interaction-area h2 { margin-top: 0; border-left-color: #c80000; }
        .comment-form, .rating-form { display: flex; flex-direction: column; gap: 1rem; max-width: 600px; }
        .comment-form textarea, .rating-form input, .rating-form select {
            padding: 0.8rem 1rem; border: 1px solid #d0d4de; border-radius: 8px; font-size: 1rem; font-family: inherit;
            background: #f8f9fc; transition: border 0.2s;
        }
        .comment-form textarea:focus, .rating-form input:focus, .rating-form select:focus { border-color: #c80000; outline: none; background: #fff; }
        .comment-form textarea { min-height: 120px; resize: vertical; }
        .btn { background: #c80000; color: #fff; border: none; padding: 0.7rem 2rem; border-radius: 40px; font-weight: 600; cursor: pointer; transition: 0.2s; font-size: 1rem; width: fit-content; }
        .btn:hover { background: #8b0000; transform: scale(1.02); }
        .btn i { margin-right: 0.4rem; }
        friend-link {
            display: block; background: #0b0b1a; color: #ddd; padding: 2rem 0;
            border-top: 3px solid #c80000;
        }
        friend-link .container { display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; justify-content: center; }
        friend-link a { color: #bbb; font-size: 0.9rem; }
        friend-link a:hover { color: #fff; text-decoration: underline; }
        friend-link .fl-title { width: 100%; text-align: center; font-size: 0.8rem; color: #888; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 0.5rem; }
        footer {
            background: #070714; color: #888; padding: 1.5rem 0; text-align: center; font-size: 0.85rem;
        }
        footer a { color: #aaa; }
        footer a:hover { color: #fff; }
        footer .copyright { margin-top: 0.5rem; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav#main-nav ul { display: none; flex-direction: column; background: #0b0b1a; width: 100%; padding: 1rem 0; gap: 0.5rem; }
            nav#main-nav ul.open { display: flex; }
            nav#main-nav ul li a { padding: 0.5rem 1.5rem; display: block; }
            .header-inner { position: relative; }
            nav#main-nav { width: 100%; order: 3; }
            .hero h1 { font-size: 1.8rem; }
            .hero p { font-size: 1rem; }
            .article-body { padding: 1.2rem; }
            .interaction-area { padding: 1.2rem; }
            .search-bar { flex-direction: column; border-radius: 20px; padding: 0.8rem; }
            .search-bar button { width: 100%; margin-top: 0.5rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            h3 { font-size: 1.15rem; }
            .sidebar { position: static; margin-top: 2rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 1rem; }
            .my-logo { font-size: 1.4rem; }
            .breadcrumb { font-size: 0.75rem; }
        }
        .highlight { background: #fff3e0; padding: 0.1rem 0.3rem; border-radius: 4px; font-weight: 600; }
        .insight-box { background: #f0f4ff; border-left: 4px solid #c80000; padding: 1.2rem 1.5rem; margin: 1.5rem 0; border-radius: 0 12px 12px 0; }
        .insight-box p:last-child { margin-bottom: 0; }
        .emoji-lg { font-size: 1.4rem; }
        .schema-hidden { display: none; }