* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #1a1a2e;
            --accent: #e94560;
            --accent-hover: #c73652;
            --bg: #f4f6fb;
            --card: #ffffff;
            --text: #2d2d3a;
            --muted: #6b7280;
            --border: #e5e7eb;
            --gold: #f59e0b;
            --radius: 14px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        body { font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.75; }
        a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
        a:hover { color: var(--accent-hover); }
        img { max-width: 100%; height: auto; border-radius: 12px; }
        .container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
        .site-header { background: var(--primary); padding: 16px 0; box-shadow: 0 2px 14px rgba(0,0,0,0.15); position: sticky; top: 0; z-index: 100; }
        .header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
        .my-logo { font-size: 1.7rem; font-weight: 800; color: #fff; letter-spacing: -0.5px; display: flex; align-items: center; gap: 8px; }
        .my-logo i { color: var(--gold); }
        .my-logo span { background: linear-gradient(135deg, var(--accent), #ff6b81); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .nav-links { display: flex; gap: 6px; list-style: none; flex-wrap: wrap; }
        .nav-links a { color: rgba(255,255,255,0.9); padding: 8px 16px; border-radius: 20px; font-size: 0.9rem; font-weight: 500; display: block; }
        .nav-links a:hover { background: rgba(255,255,255,0.12); color: #fff; }
        .hamburger { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 6px 10px; }
        @media (max-width: 768px) {
            .nav-links { display: none; width: 100%; flex-direction: column; padding-top: 12px; }
            .nav-links.open { display: flex; }
            .hamburger { display: block; }
            .header-inner { position: relative; }
        }
        .breadcrumb { background: #fff; border-bottom: 1px solid var(--border); font-size: 0.85rem; padding: 10px 0; }
        .breadcrumb .container { display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); }
        .breadcrumb a { color: var(--muted); }
        .breadcrumb i { font-size: 0.7rem; margin: 0 4px; color: #ccc; }
        .hero { background: linear-gradient(135deg, var(--primary) 0%, #26264a 100%); color: #fff; padding: 50px 0; text-align: center; }
        .hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800; margin-bottom: 14px; line-height: 1.2; }
        .hero p { font-size: 1.15rem; color: rgba(255,255,255,0.8); max-width: 720px; margin: 0 auto 22px; }
        .hero .badge { display: inline-block; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); padding: 6px 18px; border-radius: 30px; font-size: 0.85rem; margin-bottom: 12px; }
        .hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
        .btn { padding: 12px 28px; border-radius: 30px; font-weight: 600; font-size: 0.95rem; display: inline-flex; align-items: center; gap: 8px; transition: transform 0.2s, box-shadow 0.2s; }
        .btn-primary { background: var(--accent); color: #fff; }
        .btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(233,69,96,0.35); color: #fff; }
        .btn-outline { border: 1px solid rgba(255,255,255,0.5); color: #fff; }
        .btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; transform: translateY(-2px); }
        .search-section { max-width: 640px; margin: -28px auto 40px; position: relative; z-index: 5; padding: 0 20px; }
        .search-form { background: #fff; border-radius: 50px; box-shadow: 0 8px 30px rgba(0,0,0,0.12); display: flex; align-items: center; padding: 4px 4px 4px 22px; border: 2px solid transparent; transition: border-color 0.2s; }
        .search-form:focus-within { border-color: var(--accent); }
        .search-form input { flex: 1; border: none; outline: none; font-size: 1rem; padding: 12px 10px; background: transparent; }
        .search-form button { background: var(--accent); color: #fff; border: none; width: 46px; height: 46px; border-radius: 50%; cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center; transition: background 0.2s; }
        .search-form button:hover { background: var(--accent-hover); }
        .content-grid { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin: 40px 0; }
        @media (max-width: 900px) {
            .content-grid { grid-template-columns: 1fr; }
            .sidebar { order: -1; }
        }
        .main-content { min-width: 0; }
        .card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 32px; margin-bottom: 32px; border: 1px solid rgba(0,0,0,0.03); }
        .card h2 { font-size: 1.7rem; color: var(--primary); margin-bottom: 14px; border-left: 4px solid var(--accent); padding-left: 16px; }
        .card h3 { font-size: 1.25rem; color: #333; margin: 24px 0 10px; }
        .card h4 { font-size: 1.05rem; color: #555; margin: 18px 0 8px; }
        .card p { margin-bottom: 14px; color: #444; }
        .card ul, .card ol { margin: 0 0 16px 22px; color: #444; }
        .card li { margin-bottom: 8px; }
        .card i.fas, .card i.far { margin-right: 6px; color: var(--accent); }
        .info-box { background: #f0f4ff; border-left: 4px solid var(--primary); border-radius: 10px; padding: 18px 22px; margin: 18px 0; }
        .tip-box { background: #fef9e7; border-left: 4px solid var(--gold); border-radius: 10px; padding: 18px 22px; margin: 18px 0; }
        .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin: 20px 0; }
        .stat-card { background: linear-gradient(135deg, #f8faff, #eef1fb); border-radius: 12px; padding: 20px; text-align: center; }
        .stat-card .number { font-size: 2rem; font-weight: 800; color: var(--primary); display: block; }
        .stat-card .label { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }
        .table-wrap { overflow-x: auto; margin: 18px 0; }
        table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
        th { background: var(--primary); color: #fff; padding: 12px 14px; text-align: left; white-space: nowrap; }
        td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
        tr:nth-child(even) { background: #fafbfe; }
        .sidebar { position: sticky; top: 90px; align-self: start; }
        .sidebar-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 22px; font-size: 0.9rem; }
        .sidebar-card h3 { font-size: 1.1rem; margin-bottom: 14px; color: var(--primary); border-bottom: 2px solid var(--bg); padding-bottom: 10px; }
        .sidebar-card ul { list-style: none; margin: 0; padding: 0; }
        .sidebar-card li { margin-bottom: 8px; }
        .sidebar-card a { color: var(--text); display: block; padding: 6px 8px; border-radius: 8px; }
        .sidebar-card a:hover { background: #f4f6fb; }
        .rating-box { text-align: center; padding: 20px; background: #fafbfe; border-radius: 12px; }
        .stars { font-size: 1.8rem; color: #ddd; cursor: pointer; display: inline-flex; gap: 4px; }
        .stars i.active { color: var(--gold); }
        .rating-value { font-size: 2rem; font-weight: 800; color: var(--primary); display: block; margin: 8px 0 4px; }
        .rating-count { color: var(--muted); font-size: 0.85rem; }
        .rating-btn { background: var(--accent); color: #fff; border: none; padding: 10px 24px; border-radius: 30px; font-size: 0.9rem; cursor: pointer; margin-top: 12px; }
        .comment-list { list-style: none; margin: 0 0 20px; padding: 0; }
        .comment-item { border-bottom: 1px solid var(--border); padding: 16px 0; }
        .comment-item .author { font-weight: 600; color: var(--primary); }
        .comment-item .date { font-size: 0.8rem; color: var(--muted); margin-left: 8px; }
        .comment-item .text { margin-top: 6px; color: #444; font-size: 0.95rem; }
        .comment-form textarea { width: 100%; border: 1px solid var(--border); border-radius: 12px; padding: 12px; font-family: inherit; font-size: 0.95rem; resize: vertical; min-height: 90px; }
        .comment-form input { width: 100%; border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px; margin-bottom: 12px; font-size: 0.95rem; }
        .comment-form button { background: var(--primary); color: #fff; border: none; padding: 10px 24px; border-radius: 30px; cursor: pointer; font-weight: 600; }
        .featured-image { margin: 20px 0; }
        .featured-image img { width: 100%; max-height: 420px; object-fit: cover; }
        .image-caption { font-size: 0.85rem; color: var(--muted); text-align: center; margin-top: 8px; }
        .site-footer { background: var(--primary); color: rgba(255,255,255,0.85); padding: 40px 0 20px; margin-top: 40px; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; margin-bottom: 30px; }
        .site-footer h4 { color: #fff; margin-bottom: 14px; font-size: 1rem; }
        .site-footer a { color: rgba(255,255,255,0.75); font-size: 0.9rem; }
        .site-footer a:hover { color: #fff; }
        .friend-links { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 20px; margin-top: 10px; display: flex; flex-wrap: wrap; gap: 18px; font-size: 0.85rem; }
        friend-link { display: inline-flex; align-items: center; gap: 4px; }
        friend-link a { color: rgba(255,255,255,0.7); }
        .copyright { text-align: center; font-size: 0.85rem; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); color: rgba(255,255,255,0.55); margin-top: 20px; }
        .progress-wrap { position: fixed; bottom: 0; left: 0; height: 3px; background: transparent; z-index: 999; width: 100%; }
        .progress-bar { height: 3px; background: linear-gradient(90deg, var(--accent), var(--gold)); width: 0; }
        @media (max-width: 768px) {
            .card { padding: 20px; }
            .card h2 { font-size: 1.4rem; }
        }
        .toc { background: #f9fafc; border-radius: 10px; padding: 16px 20px; margin-bottom: 24px; border: 1px solid var(--border); }
        .toc h3 { font-size: 1rem; margin-bottom: 8px; }
        .toc ol { margin-left: 18px; }
        .toc li { margin-bottom: 4px; font-size: 0.9rem; }
        .toc a { color: var(--text); }
        .toc a:hover { color: var(--accent); }
        .compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        @media (max-width: 600px) { .compare-grid { grid-template-columns: 1fr; } }
        .compare-card { background: #f8faff; border-radius: 10px; padding: 18px; }
        .compare-card h4 { color: var(--primary); }
        .faq-item { margin-bottom: 14px; }
        .faq-item summary { font-weight: 600; cursor: pointer; }
        .faq-item p { margin-top: 6px; }