*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
        }
        a {
            color: #004e92;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #ff6b35;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1a2e;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.8rem;
            margin-bottom: 0.9rem;
            border-left: 6px solid #ff6b35;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 2rem;
            margin-bottom: 0.6rem;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.4rem;
            margin-bottom: 0.4rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.4rem 1.8rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        blockquote {
            border-left: 5px solid #ff6b35;
            background: #fff3ed;
            padding: 1rem 1.6rem;
            margin: 1.4rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2d2d44;
        }
        strong {
            color: #0b1a2e;
        }
        hr {
            border: 0;
            height: 2px;
            background: linear-gradient(90deg, #ff6b35, #004e92);
            margin: 2.4rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a5c 100%);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.4rem 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #ff6b35, #f7c948);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-block;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none !important;
        }
        .my-logo span {
            font-weight: 300;
            color: #aac4e0;
            -webkit-text-fill-color: #aac4e0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e0edff;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-menu a:hover {
            background: rgba(255, 107, 53, 0.25);
            color: #fff;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.6rem 0;
            font-size: 0.88rem;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #7a8aa4;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #004e92;
        }
        .breadcrumb .current {
            color: #6c7a94;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, #e8edf5, #d4dfed);
            padding: 2.4rem 0 2rem;
            border-radius: 0 0 40px 40px;
            margin-bottom: 1.8rem;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 0.4rem;
        }
        .hero .subhead {
            font-size: 1.2rem;
            color: #2c3e50;
            max-width: 700px;
        }
        .hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1rem;
            font-size: 0.92rem;
            color: #3d4f66;
        }
        .hero .meta i {
            margin-right: 6px;
            color: #ff6b35;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            margin: 2rem 0 2.4rem;
            border: 1px solid #e6ecf5;
        }
        .search-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-top: 0.6rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce3ec;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
            background: #fafcff;
        }
        .search-form input[type="text"]:focus {
            border-color: #ff6b35;
        }
        .search-form button {
            background: #0b1a2e;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #ff6b35;
            transform: scale(1.02);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 2.4rem 0;
        }
        @media (max-width: 700px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #fff;
            border-radius: 16px;
            padding: 1.6rem 1.8rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf5;
            transition: box-shadow 0.2s;
        }
        .card:hover {
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.07);
        }
        .card h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #dce3ec;
            cursor: pointer;
            margin: 0.6rem 0 0.8rem;
        }
        .star-rating i {
            transition: color 0.15s, transform 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: #f7c948;
            transform: scale(1.1);
        }
        .star-rating i:hover~i {
            color: #dce3ec;
        }
        .card textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #dce3ec;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 80px;
            outline: none;
            transition: border 0.25s;
            background: #fafcff;
        }
        .card textarea:focus {
            border-color: #ff6b35;
        }
        .card .btn {
            background: #004e92;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 0.6rem;
        }
        .card .btn:hover {
            background: #ff6b35;
            transform: scale(1.02);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.4rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eef2f7;
        }
        th {
            background: #0b1a2e;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f4f8ff;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 0.6rem 1rem;
            margin: 1.2rem 0;
        }
        .link-grid a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            background: #f4f8ff;
            transition: background 0.2s, transform 0.15s;
            font-size: 0.92rem;
        }
        .link-grid a:hover {
            background: #ffede6;
            transform: translateX(4px);
            text-decoration: none;
        }
        .link-grid a i {
            color: #ff6b35;
            font-size: 0.8rem;
        }
        .feature-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .feature-image figcaption {
            background: #f4f8ff;
            padding: 0.8rem 1.2rem;
            font-size: 0.88rem;
            color: #3d4f66;
            text-align: center;
            border-radius: 0 0 12px 12px;
        }
        .site-footer {
            background: #0b1a2e;
            color: #c8d8ea;
            padding: 2.6rem 0 1.2rem;
            margin-top: 3.6rem;
            border-radius: 40px 40px 0 0;
        }
        .site-footer a {
            color: #f7c948;
        }
        .site-footer a:hover {
            color: #ff6b35;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 600px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .footer-inner h5 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-inner ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-inner li {
            margin-bottom: 0.3rem;
        }
        .footer-inner li a {
            font-size: 0.9rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.6rem;
            margin-top: 1.6rem;
            border-top: 1px solid #1f3857;
            font-size: 0.85rem;
            color: #8aa2c0;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero .subhead {
                font-size: 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
        }
        .schema-hidden {
            display: none;
        }
        .tag {
            display: inline-block;
            background: #ffede6;
            color: #c4400c;
            padding: 0.2rem 0.9rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .highlight-box {
            background: #f0f6ff;
            border-left: 6px solid #004e92;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.4rem 0;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 6px;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            align-items: center;
        }
        .last-updated {
            background: #eef2f7;
            display: inline-block;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
        }