* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #fafbfc;
            color: #1e293b;
            line-height: 1.75;
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #1d4ed8;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0f3b8e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1e3a 0%, #1a3a6b 100%);
            color: #fff;
            padding: 16px 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;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fcd34d, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 10px rgba(252, 211, 77, 0.3);
            display: inline-block;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
            -webkit-text-fill-color: transparent;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            display: block;
            color: #94a3b8;
            -webkit-text-fill-color: #94a3b8;
            letter-spacing: 0.3px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 8px 16px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 12px 0;
            font-size: 0.85rem;
            color: #475569;
        }
        .breadcrumb a {
            color: #1d4ed8;
        }
        .breadcrumb span {
            margin: 0 6px;
            color: #94a3b8;
        }
        main {
            padding: 40px 0 60px;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #0b1e3a;
            letter-spacing: -0.02em;
        }
        h1 i {
            color: #f59e0b;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #0f3b8e;
            border-bottom: 4px solid #e2e8f0;
            padding-bottom: 8px;
        }
        h2 i {
            color: #f59e0b;
            margin-right: 10px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #1e293b;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #334155;
        }
        p {
            margin-bottom: 18px;
            color: #334155;
        }
        .lead {
            font-size: 1.2rem;
            color: #1e293b;
            font-weight: 400;
            border-left: 4px solid #f59e0b;
            padding-left: 20px;
            background: #fefce8;
            padding: 16px 24px;
            border-radius: 0 12px 12px 0;
            margin-bottom: 28px;
        }
        .highlight-box {
            background: #eef2ff;
            border-radius: 16px;
            padding: 24px 28px;
            margin: 24px 0;
            border-left: 6px solid #1d4ed8;
        }
        .highlight-box strong {
            color: #0f3b8e;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 6px;
        }
        .feature-image {
            margin: 32px 0;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        .feature-image figcaption {
            background: #f8fafc;
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #64748b;
            text-align: center;
            border-bottom: 1px solid #e2e8f0;
        }
        .context-link {
            font-weight: 600;
            color: #1d4ed8;
            border-bottom: 1px dashed #94a3b8;
        }
        .search-section {
            background: #f1f5f9;
            border-radius: 20px;
            padding: 28px 32px;
            margin: 40px 0 32px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .search-section h3 {
            margin-top: 0;
            color: #0b1e3a;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #cbd5e1;
            border-radius: 40px;
            font-size: 1rem;
            transition: border 0.25s, box-shadow 0.25s;
            outline: none;
            background: #fff;
        }
        .search-form input:focus {
            border-color: #1d4ed8;
            box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
        }
        .search-form button {
            padding: 14px 32px;
            background: #1d4ed8;
            color: #fff;
            border: none;
            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: #0f3b8e;
            transform: translateY(-2px);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        @media (max-width: 768px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #fff;
            border-radius: 20px;
            padding: 28px 32px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #f1f5f9;
        }
        .card h3 {
            margin-top: 0;
            font-size: 1.4rem;
        }
        .card textarea,
        .card input[type="text"],
        .card input[type="number"] {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            transition: border 0.25s;
            outline: none;
            font-family: inherit;
            background: #fafbfc;
        }
        .card textarea:focus,
        .card input:focus {
            border-color: #1d4ed8;
            background: #fff;
        }
        .card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .card button {
            margin-top: 12px;
            padding: 12px 28px;
            background: #0f3b8e;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .card button:hover {
            background: #1a4fa0;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 2rem;
            cursor: pointer;
            color: #cbd5e1;
            transition: color 0.2s;
            margin: 8px 0;
        }
        .star-rating i.active {
            color: #f59e0b;
        }
        .star-rating i:hover,
        .star-rating i.hover {
            color: #fbbf24;
        }
        .site-footer {
            background: #0b1e3a;
            color: #cbd5e1;
            padding: 40px 0 24px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .site-footer h4 {
            color: #f1f5f9;
            margin-bottom: 12px;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #fcd34d;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid #1e3a5f;
            padding-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #64748b;
        }
        .footer-bottom .copyright {
            margin-top: 8px;
        }
        friend-link {
            display: block;
            margin: 12px 0;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 12px;
            font-size: 0.95rem;
        }
        friend-link a {
            margin: 0 8px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 16px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 20px;
                border-radius: 12px;
                width: 100%;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .header-inner {
                gap: 8px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.6rem;
            }
            .card {
                padding: 20px;
            }
        }
        .last-updated {
            display: inline-block;
            background: #eef2ff;
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #1d4ed8;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
        }
        th {
            background: #f1f5f9;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: #0b1e3a;
        }
        td {
            padding: 12px 16px;
            border-bottom: 1px solid #f1f5f9;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .faq-item {
            background: #fff;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 12px 0;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
            border-left: 4px solid #1d4ed8;
        }
        .faq-item h4 {
            margin-top: 0;
            color: #0b1e3a;
        }
        .tag {
            display: inline-block;
            background: #e2e8f0;
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #475569;
        }