*,
        *::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, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #0077b6;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #023e8a;
            text-decoration: underline;
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: #0077b6;
            color: #fff;
            padding: 0.6rem 1.2rem;
            border-radius: 0 0 8px 8px;
            z-index: 9999;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a4a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #ffd166;
            text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
            transition: transform 0.2s ease;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffd166;
        }
        .my-logo i {
            font-size: 2rem;
            color: #f77f00;
        }
        .my-logo span {
            font-size: 0.85rem;
            font-weight: 400;
            color: #a8d5e2;
            letter-spacing: 0.3px;
            display: block;
            font-style: italic;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .primary-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .primary-nav a {
            color: #e0f0f8;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .primary-nav a:hover,
        .primary-nav a:focus {
            background: rgba(255, 255, 255, 0.15);
            color: #ffd166;
            text-decoration: none;
        }
        .primary-nav a.active {
            background: #f77f00;
            color: #0b1a2e;
            font-weight: 600;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce3ea;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.6rem;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #6c757d;
            margin-right: 0.6rem;
            font-size: 1.1rem;
        }
        .breadcrumb a {
            color: #0077b6;
        }
        .breadcrumb .current {
            color: #495057;
            font-weight: 600;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b1a2e;
            line-height: 1.2;
            margin-bottom: 0.6rem;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #f77f00;
            margin-right: 0.5rem;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #1a3a4a;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #ffd166;
            display: inline-block;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1e2a3a;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2c3e50;
            margin-top: 1.4rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.2rem;
            color: #2c3e50;
            font-weight: 400;
            background: #e9f0f7;
            padding: 1.2rem 1.8rem;
            border-radius: 12px;
            border-left: 5px solid #f77f00;
        }
        .highlight-box {
            background: #fff9e6;
            border: 1px solid #ffd166;
            border-radius: 12px;
            padding: 1.4rem 1.8rem;
            margin: 1.5rem 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .highlight-box strong {
            color: #d00000;
        }
        .insight-badge {
            display: inline-block;
            background: #f77f00;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            background: #fff;
            padding: 0.5rem;
        }
        .featured-image img {
            border-radius: 10px;
        }
        .featured-image figcaption {
            padding: 0.8rem 1rem 0.4rem;
            font-size: 0.85rem;
            color: #6c757d;
            font-style: italic;
            text-align: center;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 1.8rem 0;
        }
        .stat-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.2rem 1rem;
            text-align: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9ecef;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: #f77f00;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #6c757d;
            margin-top: 0.2rem;
        }
        .related-links {
            background: #fff;
            border: 1px solid #dce3ea;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin: 1.8rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
        }
        .related-links a {
            font-size: 0.9rem;
            background: #f0f4f8;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            border: 1px solid #dce3ea;
            transition: all 0.2s ease;
        }
        .related-links a:hover {
            background: #0077b6;
            color: #fff;
            border-color: #0077b6;
            text-decoration: none;
        }
        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9ecef;
            margin: 2rem 0;
        }
        .form-card h3 {
            margin-top: 0;
            font-size: 1.4rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            color: #2c3e50;
            margin-bottom: 0.3rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ea;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s ease;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #0077b6;
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #0077b6;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            background: #023e8a;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 119, 182, 0.3);
        }
        .btn-secondary {
            background: #f77f00;
        }
        .btn-secondary:hover {
            background: #d66a00;
            box-shadow: 0 4px 12px rgba(247, 127, 0, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ffc107;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            transition: transform 0.1s ease;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f77f00;
            transform: scale(1.1);
        }
        .rating-stars label i {
            pointer-events: none;
        }
        .comment-item {
            background: #f8faff;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin-bottom: 0.8rem;
            border-left: 4px solid #ffd166;
        }
        .comment-item .meta {
            font-size: 0.8rem;
            color: #6c757d;
            display: flex;
            gap: 1rem;
            margin-bottom: 0.3rem;
        }
        .comment-item .name {
            font-weight: 600;
            color: #1a3a4a;
        }
        .site-footer {
            background: #0b1a2e;
            color: #c8d6df;
            padding: 2.5rem 0 1.2rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #ffd166;
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border: none;
        }
        .site-footer a {
            color: #a8d5e2;
        }
        .site-footer a:hover {
            color: #ffd166;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.4rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.2rem;
            font-size: 0.85rem;
            text-align: center;
            color: #8899a6;
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0.4rem 0;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0f2638;
                padding: 0.8rem 0.6rem;
                border-radius: 12px;
                margin-top: 0.6rem;
                gap: 0.2rem;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 0.6rem 1rem;
                width: 100%;
                border-radius: 8px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .lead {
                font-size: 1rem;
                padding: 1rem;
            }
            .form-card {
                padding: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-links {
                padding: 0.8rem 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .breadcrumb ol {
                font-size: 0.78rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            .stat-card .number {
                font-size: 1.5rem;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        @media print {
            .site-header {
                position: static;
                background: #fff;
                color: #000;
            }
            .nav-toggle,
            .primary-nav {
                display: none !important;
            }
            .form-card {
                break-inside: avoid;
            }
        }