*, *::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: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: #0a58ca; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #084298; 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; color: #0d1b2a; }
        .wrapper { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
        .flex-row { display: flex; flex-wrap: wrap; gap: 2rem; }
        .flex-col { flex: 1 1 300px; }
        .site-header {
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2838 100%);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem 1.5rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f0c27f, #fc5c7d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i { font-size: 1.4rem; -webkit-text-fill-color: #fc5c7d; }
        .my-logo:hover { opacity: 0.9; text-decoration: none !important; }
        .nav-bar { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; }
        .nav-bar a {
            color: #e0e6ed;
            padding: 0.4rem 0.9rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            text-decoration: none;
        }
        .nav-bar a:hover, .nav-bar a.active {
            background: rgba(255,255,255,0.12);
            color: #fff;
            text-decoration: none;
        }
        .nav-bar a i { margin-right: 0.35rem; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            line-height: 1;
        }
        .nav-mobile { display: none; }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.6rem 1.25rem;
            border-radius: 10px;
            margin: 1rem 0 1.5rem;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.25rem 1rem;
        }
        .breadcrumb a { color: #0a58ca; }
        .breadcrumb span { color: #6c757d; }
        main { padding: 1.5rem 0 3rem; }
        .content-card {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 24px rgba(0,0,0,0.05);
            margin-bottom: 2.5rem;
        }
        .content-card h1 { font-size: 2.4rem; margin-bottom: 0.75rem; }
        .content-card h2 { font-size: 1.8rem; margin: 2.2rem 0 0.8rem; border-bottom: 3px solid #fc5c7d; padding-bottom: 0.3rem; }
        .content-card h3 { font-size: 1.35rem; margin: 1.6rem 0 0.5rem; color: #1b2838; }
        .content-card h4 { font-size: 1.1rem; margin: 1.2rem 0 0.3rem; color: #2c3e50; }
        .content-card p { margin: 0.6rem 0 1rem; }
        .content-card ul, .content-card ol { margin: 0.5rem 0 1.2rem; }
        .content-card li { margin-bottom: 0.3rem; }
        .highlight { background: #fff3cd; padding: 0.1rem 0.3rem; border-radius: 4px; font-weight: 600; }
        .stat-box {
            background: #f0f4f8;
            border-left: 5px solid #fc5c7d;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            margin: 1.5rem 0;
        }
        .stat-box strong { color: #0d1b2a; }
        .insight-badge {
            display: inline-block;
            background: #0d1b2a;
            color: #f0c27f;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .feature-image {
            border-radius: 16px;
            margin: 1.8rem 0;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            width: 100%;
        }
        .search-box {
            display: flex;
            gap: 0.5rem;
            max-width: 500px;
            margin: 1.2rem 0;
            flex-wrap: wrap;
        }
        .search-box input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #dee2e6;
            border-radius: 50px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
            min-width: 160px;
        }
        .search-box input:focus { border-color: #fc5c7d; }
        .search-box button {
            background: #0d1b2a;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            font-size: 0.95rem;
        }
        .search-box button:hover { background: #1b2838; transform: scale(1.02); }
        .search-box button i { margin-right: 0.4rem; }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2rem 0 0.5rem;
        }
        .interact-card {
            background: #f8f9fa;
            border-radius: 16px;
            padding: 1.5rem;
            border: 1px solid #e9ecef;
        }
        .interact-card h3 { font-size: 1.2rem; margin-top: 0; display: flex; align-items: center; gap: 0.5rem; }
        .interact-card textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dee2e6;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 80px;
            outline: none;
            transition: border 0.3s;
        }
        .interact-card textarea:focus { border-color: #fc5c7d; }
        .interact-card input[type="text"] {
            width: 100%;
            padding: 0.6rem 1rem;
            border: 2px solid #dee2e6;
            border-radius: 12px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
        }
        .interact-card input[type="text"]:focus { border-color: #fc5c7d; }
        .interact-card .btn-submit {
            background: #fc5c7d;
            color: #fff;
            border: none;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }
        .interact-card .btn-submit:hover { background: #e04a6a; transform: scale(1.02); }
        .star-group {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #e0c23b;
            margin: 0.5rem 0;
            cursor: pointer;
        }
        .star-group i { transition: transform 0.15s, color 0.15s; }
        .star-group i:hover { transform: scale(1.2); color: #f1c40f; }
        .site-footer {
            background: #0d1b2a;
            color: #b0bec5;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
        .site-footer a { color: #f0c27f; }
        .site-footer a:hover { color: #fc5c7d; }
        .friend-link { display: block; padding: 0.4rem 0; font-weight: 500; }
        .friend-link::before { content: "🔗 "; }
        .copyright { text-align: center; margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid #1e2d3d; font-size: 0.9rem; }
        @media (max-width: 900px) {
            .interact-grid { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; }
            .content-card { padding: 1.5rem; }
            .content-card h1 { font-size: 1.9rem; }
        }
        @media (max-width: 700px) {
            .hamburger { display: block; }
            .nav-bar { display: none; }
            .nav-mobile {
                display: none;
                flex-direction: column;
                gap: 0.25rem;
                width: 100%;
                background: #0d1b2a;
                padding: 0.75rem 0 1rem;
                border-top: 1px solid #1e2d3d;
                margin-top: 0.5rem;
            }
            .nav-mobile a {
                color: #e0e6ed;
                padding: 0.5rem 1rem;
                border-radius: 8px;
                font-size: 0.95rem;
                text-decoration: none;
            }
            .nav-mobile a:hover { background: rgba(255,255,255,0.08); }
            .nav-mobile.show { display: flex; }
            .header-inner { position: relative; }
            .content-card h2 { font-size: 1.5rem; }
            .breadcrumb { font-size: 0.8rem; gap: 0.2rem 0.6rem; }
        }
        @media (max-width: 480px) {
            .content-card { padding: 1.1rem; border-radius: 14px; }
            .content-card h1 { font-size: 1.6rem; }
            .my-logo { font-size: 1.3rem; }
        }
        .tag {
            display: inline-block;
            background: #e9ecef;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #1a1a2e;
        }
        .last-update { font-size: 0.85rem; color: #6c757d; margin-bottom: 1rem; }
        .table-wrap { overflow-x: auto; }
        table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
        th, td { padding: 0.6rem 0.8rem; text-align: left; border-bottom: 1px solid #dee2e6; }
        th { background: #f0f4f8; font-weight: 700; }