*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fc;
            color: #1e2a3a;
            line-height: 1.75;
            padding: 0;
            margin: 0;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1a2a;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2a 0%, #1a2f3f 100%);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f1c40f;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 2px 8px rgba(241, 196, 15, 0.2);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #f39c12;
            text-decoration: none;
        }
        .my-logo small {
            display: block;
            font-size: 0.6rem;
            color: #bdc3c7;
            letter-spacing: 1px;
            font-weight: 400;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 2px solid rgba(241, 196, 15, 0.6);
            color: #f1c40f;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .nav-toggle:hover {
            background: rgba(241, 196, 15, 0.15);
            border-color: #f1c40f;
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #ecf0f1;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s ease;
            position: relative;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: #f1c40f;
            transition: width 0.3s ease;
        }
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            width: 60%;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background: rgba(241, 196, 15, 0.12);
            color: #f1c40f;
            text-decoration: none;
        }
        .breadcrumb {
            background: #eaeef5;
            padding: 10px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: #7f8c8d;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb .current {
            color: #c0392b;
            font-weight: 600;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .main-content h1 {
            font-size: 2.8rem;
            margin-bottom: 16px;
            border-left: 6px solid #c0392b;
            padding-left: 20px;
            color: #0b1a2a;
        }
        .main-content h2 {
            font-size: 2rem;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #1a2f3f;
            border-bottom: 3px solid #e74c3c;
            padding-bottom: 8px;
        }
        .main-content h3 {
            font-size: 1.5rem;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #2c3e50;
        }
        .main-content h4 {
            font-size: 1.2rem;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #34495e;
        }
        .main-content p {
            margin-bottom: 16px;
            color: #2c3e50;
        }
        .main-content .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #1a2f3f;
            background: #eef2f7;
            padding: 20px 24px;
            border-radius: 12px;
            border-left: 4px solid #c0392b;
            margin-bottom: 28px;
        }
        .featured-img {
            margin: 32px 0 24px;
            border-radius: 14px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        .featured-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-img figcaption {
            background: #f8f9fb;
            padding: 12px 18px;
            font-size: 0.85rem;
            color: #5d6d7e;
            border-top: 1px solid #e0e6ef;
        }
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            margin: 28px 0 32px;
        }
        .insight-card {
            background: #ffffff;
            border-radius: 14px;
            padding: 24px 20px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid #e8edf5;
        }
        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
        }
        .insight-card i {
            color: #c0392b;
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .insight-card h4 {
            margin-top: 0;
            color: #0b1a2a;
        }
        .data-table-wrap {
            overflow-x: auto;
            margin: 24px 0 32px;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #1a2f3f;
            color: #fff;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #e8edf5;
        }
        .data-table tr:hover td {
            background: #f4f7fc;
        }
        .data-table tr:nth-child(even) td {
            background: #fafcff;
        }
        .interactive-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 32px 28px;
            margin: 40px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8edf5;
        }
        .interactive-section h2 {
            margin-top: 0;
            border-bottom: none;
            padding-bottom: 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #1a2f3f;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce3ed;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.25s ease;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #c0392b;
            outline: none;
            background: #fff;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: #c0392b;
            color: #fff;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn:hover {
            background: #e74c3c;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(192, 57, 43, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #c0392b;
            color: #c0392b;
        }
        .btn-outline:hover {
            background: #c0392b;
            color: #fff;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #dce3ed;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f1c40f;
        }
        .star-rating i {
            transition: color 0.2s ease, transform 0.2s ease;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        friend-link {
            display: block;
            background: #1a2f3f;
            color: #ecf0f1;
            padding: 28px 24px;
            border-radius: 16px;
            margin: 40px 0 20px;
        }
        friend-link .fl-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #f1c40f;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        friend-link li a {
            color: #bdc3c7;
            font-size: 0.95rem;
            transition: color 0.25s ease;
        }
        friend-link li a:hover {
            color: #f1c40f;
            text-decoration: none;
        }
        .site-footer {
            background: #0b1a2a;
            color: #bdc3c7;
            padding: 32px 0 24px;
            text-align: center;
            border-top: 3px solid #c0392b;
        }
        .site-footer p {
            font-size: 0.9rem;
            margin-bottom: 6px;
        }
        .site-footer .copyright {
            color: #95a5a6;
            font-size: 0.85rem;
        }
        .updated-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #e8f0fe;
            color: #1a2f3f;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .updated-badge i {
            color: #c0392b;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding-top: 16px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 12px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 12px 16px;
                border-radius: 8px;
            }
            .main-content h1 {
                font-size: 2rem;
                padding-left: 14px;
            }
            .main-content h2 {
                font-size: 1.6rem;
            }
            .main-content h3 {
                font-size: 1.3rem;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .insight-grid {
                grid-template-columns: 1fr;
            }
            .interactive-section {
                padding: 20px 16px;
            }
            .star-rating {
                font-size: 1.6rem;
            }
            friend-link ul {
                flex-direction: column;
                gap: 8px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .main-content h1 {
                font-size: 1.6rem;
            }
            .main-content h2 {
                font-size: 1.3rem;
            }
            .main-content .lead {
                font-size: 1rem;
                padding: 16px;
            }
            .btn {
                width: 100%;
                text-align: center;
            }
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 16px;
            background: #c0392b;
            color: #fff;
            padding: 10px 20px;
            border-radius: 8px;
            z-index: 9999;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 16px;
        }
        .schema-hidden {
            display: none;
        }