*,
        *::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', Arial, sans-serif;
            background: #f7f9fc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0f3b5e;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #b45309;
            text-decoration-style: wavy;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.8rem 0 1rem;
            color: #0b1e2e;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem;
            color: #12344d;
            border-left: 5px solid #d97706;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.6rem 0 0.6rem;
            color: #1e4a6b;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.2rem 0 0.4rem;
            color: #2c5f7e;
        }
        p {
            margin-bottom: 1rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 300;
            color: #2c3e50;
            margin-bottom: 1.5rem;
        }
        .small-meta {
            font-size: 0.85rem;
            color: #64748b;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1e2e 0%, #1a3a4f 100%);
            color: #fff;
            padding: 0.8rem 0;
            border-radius: 0 0 20px 20px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fbbf24;
            text-decoration: none;
            letter-spacing: -0.02em;
            background: rgba(255, 255, 255, 0.06);
            padding: 0.2rem 1rem 0.2rem 0.8rem;
            border-radius: 40px;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: background 0.2s;
        }
        .my-logo:hover {
            background: rgba(251, 191, 36, 0.15);
            color: #fcd34d;
        }
        .my-logo i {
            font-size: 1.5rem;
            color: #fbbf24;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            opacity: 0.7;
            display: block;
            line-height: 1;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 0.3rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #e2e8f0;
            text-decoration: none;
            padding: 0.4rem 0.8rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: rgba(251, 191, 36, 0.18);
            color: #fbbf24;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #eef2f6;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            margin: 0.8rem 0 0.2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            align-items: center;
        }
        .breadcrumb a {
            color: #0f3b5e;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #64748b;
        }
        .search-box {
            background: #fff;
            border-radius: 50px;
            padding: 0.2rem 0.2rem 0.2rem 1.2rem;
            display: flex;
            align-items: center;
            max-width: 400px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            border: 1px solid #d1d9e6;
            transition: box-shadow 0.2s;
        }
        .search-box:focus-within {
            box-shadow: 0 4px 16px rgba(13, 60, 97, 0.15);
            border-color: #0f3b5e;
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 0.6rem 0;
            flex: 1;
            font-size: 0.9rem;
            outline: none;
            min-width: 60px;
        }
        .search-box button {
            background: #0f3b5e;
            border: none;
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: 40px;
            font-size: 0.85rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .search-box button:hover {
            background: #b45309;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0 3rem;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            margin-bottom: 1.5rem;
            border: 1px solid #e9edf2;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            border-bottom: 2px solid #fbbf24;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 0.3rem 0;
            border-bottom: 1px solid #f0f2f5;
        }
        .sidebar-card ul li a {
            text-decoration: none;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .sidebar-card ul li a:hover {
            color: #b45309;
        }
        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e9edf2;
            margin: 1.5rem 0;
        }
        .form-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 0.3rem;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #fafcff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #0f3b5e;
            outline: none;
            box-shadow: 0 0 0 3px rgba(15, 59, 94, 0.1);
        }
        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }
        .btn {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn:hover {
            background: #b45309;
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: #e2e8f0;
            color: #1e293b;
        }
        .btn-secondary:hover {
            background: #cbd5e1;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d1d9e6;
            cursor: pointer;
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        friend-link {
            display: block;
            background: #1a2e3f;
            color: #e2e8f0;
            padding: 1.5rem 2rem;
            border-radius: 20px;
            margin: 2.5rem 0 1.5rem;
        }
        friend-link::before {
            content: "🌐 Friend Links";
            display: block;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fbbf24;
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }
        friend-link a {
            color: #a8c5da;
            text-decoration: none;
            margin-right: 1.2rem;
            display: inline-block;
            padding: 0.2rem 0;
            border-bottom: 1px solid transparent;
            transition: all 0.2s;
        }
        friend-link a:hover {
            color: #fbbf24;
            border-bottom-color: #fbbf24;
        }
        .site-footer {
            background: #0b1e2e;
            color: #cbd5e1;
            padding: 1.8rem 0;
            border-radius: 20px 20px 0 0;
            text-align: center;
            font-size: 0.9rem;
            margin-top: 2rem;
        }
        .site-footer .copyright {
            font-size: 0.8rem;
            opacity: 0.7;
            margin-top: 0.5rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            margin: 1.2rem 0;
        }
        .data-table th {
            background: #0f3b5e;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #eef2f6;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f8fafc;
        }
        .img-wrap {
            margin: 1.8rem 0;
            border-radius: 14px;
            overflow: hidden;
            background: #eef2f6;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
        }
        .img-wrap img {
            width: 100%;
            display: block;
        }
        .img-wrap .caption {
            padding: 0.6rem 1.2rem;
            font-size: 0.85rem;
            color: #475569;
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f2133;
                padding: 1rem;
                border-radius: 16px;
                margin-top: 0.5rem;
                gap: 0.1rem;
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .search-box {
                max-width: 100%;
                order: 3;
                flex: 1 1 100%;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0 0.5rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .form-card {
                padding: 1.2rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.4rem 0.6rem;
                font-size: 0.8rem;
            }
        }
        .highlight-box {
            background: #eef6fb;
            border-left: 4px solid #0f3b5e;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .highlight-box strong {
            color: #0f3b5e;
        }
        .emoji-lg {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .tag {
            display: inline-block;
            background: #fbbf24;
            color: #0b1e2e;
            padding: 0.1rem 0.6rem;
            border-radius: 40px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.03em;
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: #dbeafe;
            color: #1e40af;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }