*, *::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, sans-serif; background: #f8f9fa; color: #1e2a3a; line-height: 1.7; }
        a { color: #1a6dd4; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #0a3d7a; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header { background: linear-gradient(135deg, #0f1a2e 0%, #1a2d4a 100%); color: #fff; padding: 16px 0; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 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; letter-spacing: -0.5px; color: #f7d44a; text-shadow: 0 2px 8px rgba(247,212,74,0.25); }
        .my-logo:hover { color: #ffe270; text-decoration: none; }
        .my-logo i { margin-right: 8px; color: #ffb347; }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 4px 8px; border-radius: 6px; transition: background 0.2s; }
        .nav-toggle:hover { background: rgba(255,255,255,0.1); }
        .nav-menu { display: flex; gap: 24px; list-style: none; align-items: center; }
        .nav-menu a { color: #e0e8f0; font-weight: 500; font-size: 0.95rem; padding: 6px 0; border-bottom: 2px solid transparent; transition: all 0.2s; }
        .nav-menu a:hover { color: #f7d44a; border-bottom-color: #f7d44a; text-decoration: none; }
        .nav-menu a i { margin-right: 6px; }
        .breadcrumb { background: #e9ecf0; padding: 10px 0; font-size: 0.9rem; border-bottom: 1px solid #dce1e8; }
        .breadcrumb-list { display: flex; flex-wrap: wrap; gap: 6px 12px; list-style: none; }
        .breadcrumb-list li+li::before { content: "▸"; margin-right: 12px; color: #8a9aa8; }
        .breadcrumb-list a { color: #3a6a9a; }
        .breadcrumb-list .current { color: #1e2a3a; font-weight: 600; }
        .hero { background: linear-gradient(145deg, #eef2f7 0%, #dce4ed 100%); padding: 48px 0 40px; border-bottom: 1px solid #d0d8e2; }
        .hero h1 { font-size: 2.6rem; font-weight: 800; color: #0f1a2e; line-height: 1.2; margin-bottom: 16px; }
        .hero h1 i { color: #f7b731; }
        .hero p { font-size: 1.15rem; color: #2a3a4e; max-width: 720px; }
        .hero-meta { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 18px; font-size: 0.95rem; color: #4a5a6e; }
        .hero-meta i { margin-right: 6px; color: #3a6a9a; }
        .main-grid { display: grid; grid-template-columns: 1fr 300px; gap: 40px; padding: 40px 0; }
        .content-area { min-width: 0; }
        .sidebar { min-width: 0; }
        .section-card { background: #fff; border-radius: 16px; padding: 32px; margin-bottom: 32px; box-shadow: 0 2px 12px rgba(0,0,0,0.04); border: 1px solid #eef2f6; }
        h2 { font-size: 2rem; font-weight: 700; color: #0f1a2e; margin: 40px 0 16px; padding-bottom: 10px; border-bottom: 3px solid #f7d44a; }
        h2 i { color: #f7b731; margin-right: 10px; }
        h3 { font-size: 1.4rem; font-weight: 600; color: #1a2d4a; margin: 28px 0 12px; }
        h3 i { color: #3a6a9a; margin-right: 8px; }
        h4 { font-size: 1.15rem; font-weight: 600; color: #2a3a4e; margin: 20px 0 8px; }
        p { margin-bottom: 16px; }
        .highlight { background: #fcf8e8; padding: 2px 8px; border-radius: 4px; font-weight: 600; }
        .tip-box { background: #eef6f0; border-left: 4px solid #2e8b57; padding: 20px 24px; border-radius: 0 12px 12px 0; margin: 20px 0; }
        .tip-box i { color: #2e8b57; margin-right: 8px; }
        .stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 16px; margin: 20px 0; }
        .stat-card { background: #f4f6f9; border-radius: 12px; padding: 20px; text-align: center; }
        .stat-card .num { font-size: 2rem; font-weight: 800; color: #0f1a2e; }
        .stat-card .label { color: #4a5a6e; font-size: 0.9rem; }
        .featured-image { margin: 24px 0; border-radius: 14px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
        .featured-image img { width: 100%; }
        .featured-image figcaption { background: #f4f6f9; padding: 10px 16px; font-size: 0.9rem; color: #4a5a6e; text-align: center; }
        .inline-link { font-weight: 600; color: #1a6dd4; }
        .inline-link:hover { text-decoration: underline; }
        .search-section { background: #fff; border-radius: 16px; padding: 28px; margin-bottom: 32px; border: 1px solid #eef2f6; }
        .search-section h3 { margin-top: 0; }
        .search-box { display: flex; gap: 12px; flex-wrap: wrap; }
        .search-box input { flex: 1; min-width: 200px; padding: 14px 18px; border: 2px solid #dce1e8; border-radius: 10px; font-size: 1rem; transition: border 0.2s; }
        .search-box input:focus { border-color: #1a6dd4; outline: none; }
        .search-box button { padding: 14px 28px; background: #0f1a2e; color: #fff; border: none; border-radius: 10px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
        .search-box button:hover { background: #1a2d4a; }
        .search-box button i { margin-right: 6px; }
        .comment-section, .rating-section { background: #fff; border-radius: 16px; padding: 28px; margin-bottom: 32px; border: 1px solid #eef2f6; }
        .comment-section h3, .rating-section h3 { margin-top: 0; }
        .form-group { margin-bottom: 16px; }
        .form-group label { display: block; font-weight: 600; margin-bottom: 4px; color: #1e2a3a; }
        .form-group input, .form-group textarea { width: 100%; padding: 12px 16px; border: 2px solid #dce1e8; border-radius: 10px; font-size: 1rem; font-family: inherit; transition: border 0.2s; }
        .form-group input:focus, .form-group textarea:focus { border-color: #1a6dd4; outline: none; }
        .form-group textarea { min-height: 100px; resize: vertical; }
        .btn-primary { padding: 12px 28px; background: #0f1a2e; color: #fff; border: none; border-radius: 10px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
        .btn-primary:hover { background: #1a2d4a; }
        .btn-primary i { margin-right: 6px; }
        .star-rating { display: flex; gap: 6px; font-size: 1.8rem; color: #dce1e8; cursor: pointer; }
        .star-rating i.active { color: #f7b731; }
        .star-rating i:hover { color: #f7b731; }
        .sidebar-card { background: #fff; border-radius: 16px; padding: 24px; margin-bottom: 24px; border: 1px solid #eef2f6; }
        .sidebar-card h4 { margin-top: 0; font-size: 1.1rem; border-bottom: 2px solid #f7d44a; padding-bottom: 8px; }
        .sidebar-links { list-style: none; }
        .sidebar-links li { padding: 6px 0; border-bottom: 1px solid #f0f2f5; }
        .sidebar-links a { display: flex; align-items: center; gap: 8px; }
        .sidebar-links a i { color: #f7b731; font-size: 0.8rem; }
        .site-footer { background: #0f1a2e; color: #c8d4e0; padding: 40px 0 24px; margin-top: 40px; }
        .footer-inner { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
        .footer-links h4 { color: #f7d44a; margin-bottom: 12px; font-size: 1.1rem; }
        .footer-links ul { list-style: none; }
        .footer-links li { padding: 4px 0; }
        .footer-links a { color: #a0b4c8; }
        .footer-links a:hover { color: #f7d44a; }
        .footer-bottom { border-top: 1px solid #1a2d4a; padding-top: 20px; margin-top: 32px; text-align: center; font-size: 0.9rem; color: #7a8a9e; }
        friend-link { display: block; margin-top: 16px; }
        friend-link a { color: #a0b4c8; margin: 0 10px; }
        friend-link a:hover { color: #f7d44a; }
        @media (max-width: 900px) {
            .main-grid { grid-template-columns: 1fr; }
            .sidebar { order: 2; }
            .hero h1 { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-menu { display: none; flex-direction: column; width: 100%; background: #0f1a2e; padding: 16px 0; gap: 8px; margin-top: 12px; border-top: 1px solid #1a2d4a; }
            .nav-menu.open { display: flex; }
            .nav-menu a { padding: 10px 16px; display: block; }
            .footer-inner { grid-template-columns: 1fr; }
            .hero h1 { font-size: 1.7rem; }
            .section-card { padding: 20px; }
            h2 { font-size: 1.6rem; }
            h3 { font-size: 1.2rem; }
            .stat-grid { grid-template-columns: repeat(2,1fr); }
        }
        @media (max-width: 480px) {
            .hero h1 { font-size: 1.4rem; }
            .search-box input { min-width: 140px; }
            .star-rating { font-size: 1.4rem; }
        }