*, *::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, Roboto, 'Helvetica Neue', sans-serif; background: #f8f6fc; color: #1e1a2e; line-height: 1.7; }
        :root {
            --primary: #6c3fb5;
            --primary-dark: #4b2a7a;
            --primary-light: #9b7fd4;
            --secondary: #f9a826;
            --accent: #ff6b6b;
            --bg-light: #f8f6fc;
            --bg-card: #ffffff;
            --text-dark: #1e1a2e;
            --text-mid: #4a4466;
            --text-light: #7a7599;
            --border: #e2dcf0;
            --shadow: 0 8px 32px rgba(108, 63, 181, 0.10);
            --shadow-hover: 0 12px 48px rgba(108, 63, 181, 0.18);
            --radius: 16px;
            --radius-sm: 10px;
            --max-width: 1200px;
            --header-height: 72px;
        }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: 2.6rem; margin-bottom: 0.6rem; letter-spacing: -0.02em; }
        h2 { font-size: 2.0rem; margin-top: 2.8rem; margin-bottom: 0.8rem; border-bottom: 3px solid var(--primary-light); padding-bottom: 0.4rem; }
        h3 { font-size: 1.5rem; margin-top: 2rem; margin-bottom: 0.5rem; color: var(--primary-dark); }
        h4 { font-size: 1.2rem; margin-top: 1.4rem; margin-bottom: 0.3rem; color: var(--text-mid); }
        p { margin-bottom: 1rem; color: var(--text-mid); }
        a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--secondary); text-decoration: underline; }
        strong, b { color: var(--text-dark); font-weight: 600; }
        em { font-style: italic; color: var(--text-mid); }
        ul, ol { margin: 0.8rem 0 1.2rem 2rem; }
        li { margin-bottom: 0.4rem; color: var(--text-mid); }
        blockquote { border-left: 4px solid var(--primary); background: #f0ebf9; padding: 1rem 1.6rem; margin: 1.2rem 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-style: italic; }
        img { max-width: 100%; height: auto; border-radius: var(--radius); display: block; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: linear-gradient(135deg, #4b2a7a 0%, #6c3fb5 100%);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(108, 63, 181, 0.25);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
        .my-logo {
            display: flex; align-items: center; gap: 6px;
            font-size: 1.8rem; font-weight: 800; color: #fff; text-decoration: none;
            letter-spacing: -0.03em; background: rgba(255,255,255,0.12); padding: 4px 16px 4px 12px;
            border-radius: 40px; transition: background 0.3s;
        }
        .my-logo:hover { background: rgba(255,255,255,0.22); text-decoration: none; color: #fff; }
        .my-logo span { color: var(--secondary); }
        .my-logo small { font-size: 0.45rem; font-weight: 400; opacity: 0.8; display: block; line-height: 1; }
        .nav-toggle { display: none; font-size: 1.6rem; background: none; border: none; color: #fff; cursor: pointer; padding: 8px; }
        .nav-menu { display: flex; align-items: center; gap: 8px; }
        .nav-menu a {
            color: rgba(255,255,255,0.85); font-weight: 500; font-size: 0.92rem;
            padding: 6px 14px; border-radius: 40px; transition: all 0.25s;
            text-decoration: none; white-space: nowrap;
        }
        .nav-menu a:hover, .nav-menu a.active { background: rgba(255,255,255,0.18); color: #fff; text-decoration: none; }
        .breadcrumb { background: #edeaf5; padding: 10px 0; font-size: 0.85rem; }
        .breadcrumb ul { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
        .breadcrumb li { color: var(--text-light); margin: 0; }
        .breadcrumb li+li::before { content: "›"; margin-right: 6px; color: var(--primary-light); }
        .breadcrumb a { color: var(--primary); }
        .hero {
            background: linear-gradient(135deg, #f0ebf9 0%, #e2dcf0 100%);
            padding: 2.4rem 0 2rem; text-align: center; border-bottom: 4px solid var(--secondary);
        }
        .hero h1 { font-size: 2.8rem; color: var(--primary-dark); }
        .hero .subtitle { font-size: 1.15rem; color: var(--text-mid); max-width: 720px; margin: 0.6rem auto; }
        .hero .meta-info { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; font-size: 0.92rem; color: var(--text-light); margin-top: 0.8rem; }
        .hero .meta-info i { margin-right: 6px; color: var(--primary); }
        .search-section { background: var(--bg-card); padding: 1.6rem 0; border-bottom: 1px solid var(--border); }
        .search-form { display: flex; max-width: 560px; margin: 0 auto; gap: 0; border-radius: 60px; overflow: hidden; box-shadow: var(--shadow); }
        .search-form input { flex: 1; border: 2px solid var(--border); border-right: 0; padding: 14px 20px; font-size: 1rem; outline: none; background: #fff; transition: border 0.3s; border-radius: 60px 0 0 60px; }
        .search-form input:focus { border-color: var(--primary); }
        .search-form button { background: var(--primary); color: #fff; border: none; padding: 14px 28px; font-size: 1rem; cursor: pointer; transition: background 0.3s; border-radius: 0 60px 60px 0; display: flex; align-items: center; gap: 8px; font-weight: 600; }
        .search-form button:hover { background: var(--primary-dark); }
        .main-content { padding: 2rem 0 3rem; }
        .content-grid { display: grid; grid-template-columns: 1fr 320px; gap: 40px; }
        .article-body h2:first-of-type { margin-top: 0; }
        .sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
        .sidebar-card { background: var(--bg-card); border-radius: var(--radius); padding: 1.4rem; margin-bottom: 1.4rem; box-shadow: var(--shadow); border: 1px solid var(--border); }
        .sidebar-card h4 { margin-top: 0; margin-bottom: 0.8rem; font-size: 1.1rem; color: var(--primary-dark); border-bottom: 2px solid var(--primary-light); padding-bottom: 0.4rem; }
        .sidebar-links { list-style: none; margin: 0; }
        .sidebar-links li { margin: 0; border-bottom: 1px solid var(--border); }
        .sidebar-links a { display: block; padding: 10px 0; font-size: 0.92rem; font-weight: 500; transition: padding 0.2s; }
        .sidebar-links a:hover { padding-left: 8px; text-decoration: none; color: var(--primary-dark); }
        .featured-image { margin: 1.6rem 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
        .featured-image img { width: 100%; }
        .featured-image figcaption { background: var(--bg-card); padding: 0.6rem 1rem; font-size: 0.85rem; color: var(--text-light); text-align: center; border-top: 1px solid var(--border); }
        .rating-section { background: var(--bg-card); border-radius: var(--radius); padding: 1.6rem 2rem; box-shadow: var(--shadow); border: 1px solid var(--border); margin: 2rem 0; }
        .rating-stars { display: flex; gap: 6px; font-size: 2rem; color: #ddd; cursor: pointer; }
        .rating-stars .star { transition: color 0.2s, transform 0.15s; }
        .rating-stars .star:hover, .rating-stars .star.active { color: var(--secondary); transform: scale(1.1); }
        .rating-form { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
        .rating-form button { background: var(--primary); color: #fff; border: none; padding: 10px 28px; border-radius: 40px; font-weight: 600; cursor: pointer; transition: background 0.3s; }
        .rating-form button:hover { background: var(--primary-dark); }
        .rating-score { font-size: 1.4rem; font-weight: 700; color: var(--primary-dark); }
        .comments-section { background: var(--bg-card); border-radius: var(--radius); padding: 1.6rem 2rem; box-shadow: var(--shadow); border: 1px solid var(--border); margin: 2rem 0; }
        .comments-section h3 { margin-top: 0; }
        .comment-form textarea { width: 100%; border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 12px 16px; font-size: 1rem; resize: vertical; min-height: 100px; transition: border 0.3s; font-family: inherit; }
        .comment-form textarea:focus { outline: none; border-color: var(--primary); }
        .comment-form .form-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0; }
        .comment-form input { flex: 1; min-width: 180px; border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 0.95rem; transition: border 0.3s; }
        .comment-form input:focus { outline: none; border-color: var(--primary); }
        .comment-form button { background: var(--primary); color: #fff; border: none; padding: 12px 32px; border-radius: 40px; font-weight: 600; cursor: pointer; transition: background 0.3s; display: inline-flex; align-items: center; gap: 8px; }
        .comment-form button:hover { background: var(--primary-dark); }
        .comment-item { padding: 1rem 0; border-bottom: 1px solid var(--border); }
        .comment-item:last-child { border-bottom: none; }
        .comment-author { font-weight: 600; color: var(--text-dark); display: flex; align-items: center; gap: 8px; }
        .comment-author small { font-weight: 400; color: var(--text-light); font-size: 0.8rem; }
        .comment-text { margin-top: 4px; color: var(--text-mid); }
        .site-footer { background: linear-gradient(135deg, #1e1a2e 0%, #2d2640 100%); color: rgba(255,255,255,0.7); padding: 2.4rem 0 1.2rem; margin-top: 3rem; }
        .footer-inner { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; }
        .site-footer h4 { color: #fff; margin-top: 0; margin-bottom: 0.8rem; font-size: 1.1rem; }
        .site-footer a { color: rgba(255,255,255,0.7); }
        .site-footer a:hover { color: var(--secondary); text-decoration: none; }
        .friend-link { display: flex; flex-wrap: wrap; gap: 8px 16px; list-style: none; margin: 0; }
        .friend-link li { margin: 0; }
        .friend-link a { font-size: 0.9rem; padding: 2px 0; }
        .copyright { margin-top: 1.6rem; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.5); }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
            .sidebar { position: static; }
            h1 { font-size: 2.0rem; }
            .hero h1 { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-toggle { display: block; }
            .nav-menu {
                display: none; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0;
                background: var(--primary-dark); padding: 12px 20px 20px; box-shadow: 0 12px 32px rgba(0,0,0,0.2);
                border-radius: 0 0 var(--radius) var(--radius); gap: 4px;
            }
            .nav-menu.open { display: flex; }
            .nav-menu a { padding: 10px 14px; border-radius: 8px; }
            h1 { font-size: 1.7rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.25rem; }
            .hero h1 { font-size: 1.8rem; }
            .footer-inner { grid-template-columns: 1fr; gap: 20px; }
            .rating-stars { font-size: 1.6rem; }
            .search-form { flex-direction: column; border-radius: var(--radius-sm); }
            .search-form input { border-radius: var(--radius-sm) var(--radius-sm) 0 0; border-right: 2px solid var(--border); }
            .search-form button { border-radius: 0 0 var(--radius-sm) var(--radius-sm); justify-content: center; }
            .breadcrumb { font-size: 0.78rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 14px; }
            .my-logo { font-size: 1.4rem; padding: 3px 12px 3px 8px; }
            .my-logo small { font-size: 0.4rem; }
            .hero { padding: 1.6rem 0 1.2rem; }
            .hero .meta-info { gap: 10px; font-size: 0.82rem; flex-direction: column; align-items: center; }
            .rating-form { flex-direction: column; align-items: stretch; }
            .comment-form .form-row { flex-direction: column; }
        }
        .schema-hidden { display: none; }
        .transition-all { transition: all 0.3s ease; }
        .back-to-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; background: var(--primary); color: #fff; border: none; border-radius: 50%; font-size: 1.2rem; cursor: pointer; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 999; }
        .back-to-top.show { opacity: 1; visibility: visible; }
        .back-to-top:hover { background: var(--primary-dark); transform: scale(1.05); }