*,
        *::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: #f4f7fb;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #1a6b8a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #0d3b4f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 24px 24px 0 0;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
            overflow: hidden;
            padding: 0 24px 32px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0 12px;
            border-bottom: 2px solid #e2edf2;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(145deg, #0f4c5c, #2a7f8f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            transition: transform 0.2s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            -webkit-text-fill-color: #4a6a7a;
            color: #4a6a7a;
            letter-spacing: 0.3px;
        }
        .nav-desktop {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-desktop a {
            padding: 8px 16px;
            border-radius: 100px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #1e3a4a;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .nav-desktop a:hover {
            background: #dceaf0;
            color: #0a2a3a;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #1e3a4a;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s ease;
        }
        .hamburger:hover {
            background: #e2edf2;
        }
        .nav-mobile {
            display: none;
            width: 100%;
            flex-direction: column;
            gap: 6px;
            padding: 12px 0 8px;
            border-top: 1px solid #e2edf2;
            margin-top: 8px;
        }
        .nav-mobile.open {
            display: flex;
        }
        .nav-mobile a {
            padding: 10px 16px;
            border-radius: 12px;
            font-weight: 500;
            background: #f0f5f9;
            color: #1e3a4a;
            transition: background 0.2s ease;
        }
        .nav-mobile a:hover {
            background: #dceaf0;
            text-decoration: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 14px 0 8px;
            font-size: 0.9rem;
            color: #5a7a8a;
            list-style: none;
        }
        .breadcrumb li {
            display: inline-flex;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #8aaabb;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #1a6b8a;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 500;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 24px 0 16px;
            color: #0a2a3a;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.25;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #c7dce6;
            color: #0f3f4f;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #1a4f5f;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #2a5f6f;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.2rem;
            color: #2a4a5a;
            font-weight: 400;
            max-width: 780px;
        }
        .highlight-box {
            background: #e9f2f7;
            border-left: 5px solid #2a7f8f;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #0d3b4f;
        }
        .stat-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-item {
            background: #f4f9fc;
            padding: 20px 16px;
            border-radius: 16px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
        }
        .stat-item .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #1a6b8a;
            display: block;
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: #4a6a7a;
            font-weight: 500;
        }
        .age-table-wrapper {
            overflow-x: auto;
            margin: 28px 0;
        }
        .age-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fafcfe;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
        }
        .age-table thead {
            background: #1f5f6f;
            color: #ffffff;
        }
        .age-table th {
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
        }
        .age-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #e2edf2;
        }
        .age-table tbody tr:hover {
            background: #edf5f9;
        }
        .age-table .badge {
            background: #2a7f8f;
            color: #fff;
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .age-table .badge.green {
            background: #2f8f6a;
        }
        .age-table .badge.yellow {
            background: #c89f2a;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            background: #e2edf2;
        }
        .featured-image img {
            width: 100%;
            min-height: 280px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #4a6a7a;
            background: #f4f9fc;
            border-top: 1px solid #dceaf0;
        }
        .form-card {
            background: #f4f9fc;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #dceaf0;
        }
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 4px;
            color: #1a3a4a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #c7dce6;
            border-radius: 12px;
            font-family: inherit;
            font-size: 1rem;
            background: #ffffff;
            transition: border 0.2s ease, box-shadow 0.2s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #2a7f8f;
            box-shadow: 0 0 0 3px rgba(42, 127, 143, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border: none;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            background: #1f5f6f;
            color: #ffffff;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.1s ease;
        }
        .btn:hover {
            background: #0d3b4f;
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn-secondary {
            background: #dceaf0;
            color: #1a3a4a;
        }
        .btn-secondary:hover {
            background: #c7dce6;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            color: #c7dce6;
            transition: color 0.2s ease;
            cursor: pointer;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f5b342;
        }
        .comment-list {
            margin: 20px 0;
        }
        .comment-item {
            padding: 16px 20px;
            background: #fafcfe;
            border-radius: 16px;
            margin-bottom: 12px;
            border: 1px solid #e2edf2;
        }
        .comment-item .meta {
            font-size: 0.85rem;
            color: #6a8a9a;
            display: flex;
            gap: 16px;
            margin-bottom: 6px;
        }
        .comment-item .name {
            font-weight: 600;
            color: #1a3a4a;
        }
        friend-link {
            display: block;
            padding: 20px 0 10px;
            margin-top: 32px;
            border-top: 2px solid #e2edf2;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 6px 14px;
            background: #f0f5f9;
            border-radius: 100px;
            font-size: 0.9rem;
            transition: background 0.2s ease;
        }
        friend-link a:hover {
            background: #dceaf0;
            text-decoration: none;
        }
        .site-footer {
            max-width: 1120px;
            margin: 0 auto 24px;
            padding: 24px 24px 16px;
            background: #ffffff;
            border-radius: 0 0 24px 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
            text-align: center;
            font-size: 0.9rem;
            color: #5a7a8a;
            border-top: 1px solid #e2edf2;
        }
        .site-footer .copyright {
            margin-top: 12px;
            font-size: 0.85rem;
            color: #7a9aaa;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px 24px;
                border-radius: 16px 16px 0 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .site-header {
                padding: 16px 0 8px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .stat-list {
                grid-template-columns: 1fr 1fr;
            }
            .form-card {
                padding: 16px 18px;
            }
            .age-table {
                font-size: 0.85rem;
            }
            .age-table th,
            .age-table td {
                padding: 10px 12px;
            }
            .lead {
                font-size: 1.05rem;
            }
        }
        @media (max-width: 480px) {
            .stat-list {
                grid-template-columns: 1fr;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                gap: 4px 8px;
            }
            .breadcrumb li+li::before {
                margin-right: 8px;
            }
        }
        .fade-in {
            animation: fadeIn 0.6s ease;
        }
        @keyframes fadeIn {
            0% {
                opacity: 0;
                transform: translateY(12px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }