*,
        *::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: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0f4c81;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #c0392b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.8rem;
            margin: 0.8rem 0;
        }
        li {
            margin-bottom: 0.3rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0a0a23;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.2rem;
            border-left: 6px solid #e67e22;
            padding-left: 1rem;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 2px solid #e0e4f0;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e3c5c;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c3e50;
        }
        p {
            margin: 0.8rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        header {
            background: linear-gradient(135deg, #0a0a23 0%, #1a1a3e 100%);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            background: linear-gradient(45deg, #f39c12, #e74c3c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 10px rgba(243, 156, 18, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #bbb;
            color: #bbb;
            display: block;
            font-weight: 400;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f39c12;
            color: #f39c12;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #f39c12;
            color: #0a0a23;
        }
        nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        nav a {
            color: #ddd;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        nav a:hover {
            background: rgba(243, 156, 18, 0.2);
            color: #f39c12;
            text-decoration: none;
        }
        nav a.active {
            background: #f39c12;
            color: #0a0a23;
        }
        .breadcrumb {
            background: #eef1f8;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce0ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #888;
        }
        .breadcrumb a {
            color: #0f4c81;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .page-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media(max-width:900px) {
            .page-grid {
                grid-template-columns: 1fr;
            }
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            height: fit-content;
            position: sticky;
            top: 5.5rem;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #f0c040;
            padding-bottom: 0.4rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            padding: 0.3rem 0;
            border-bottom: 1px solid #f0f2f7;
        }
        .sidebar li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #1a1a2e;
            font-weight: 500;
        }
        .sidebar li a:hover {
            color: #e67e22;
        }
        .sidebar li a i {
            width: 1.2rem;
            color: #e67e22;
        }
        @media(max-width:900px) {
            .sidebar {
                position: static;
                margin-top: 1.5rem;
            }
        }
        .card {
            background: #fff;
            border-radius: 16px;
            padding: 2rem 1.8rem;
            margin-bottom: 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
            transition: box-shadow 0.3s;
        }
        .card:hover {
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
        }
        .card-header {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1.2rem;
        }
        .card-header i {
            font-size: 1.8rem;
            color: #e67e22;
        }
        .info-box {
            background: #fef9e7;
            border-left: 5px solid #f39c12;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .info-box strong {
            color: #b7950b;
        }
        .highlight {
            background: linear-gradient(to right, #fff8e1, transparent);
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            color: #7c5a00;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            min-width: 500px;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e0e4f0;
        }
        th {
            background: #0a0a23;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8f9fe;
        }
        tr:hover td {
            background: #fff4e0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce0ec;
            border-radius: 10px;
            font-size: 1rem;
            transition: 0.2s;
            background: #fafbfe;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #e67e22;
            outline: none;
            background: #fff;
            box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #0a0a23;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            background: #e67e22;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(230, 126, 34, 0.3);
        }
        .btn-secondary {
            background: #e0e4f0;
            color: #1a1a2e;
        }
        .btn-secondary:hover {
            background: #c8cedf;
            box-shadow: none;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ccc;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
        }
        .comment-item {
            border-bottom: 1px solid #eef1f8;
            padding: 1rem 0;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: #0a0a23;
        }
        .comment-date {
            font-size: 0.8rem;
            color: #888;
            margin-left: 0.8rem;
        }
        .comment-text {
            margin: 0.3rem 0 0 0;
        }
        footer {
            background: #0a0a23;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        footer a {
            color: #f39c12;
        }
        footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        footer h4 {
            color: #fff;
            margin-top: 0;
            font-size: 1.1rem;
            border-left: 3px solid #f39c12;
            padding-left: 0.7rem;
        }
        footer ul {
            list-style: none;
            padding: 0;
        }
        footer li {
            padding: 0.2rem 0;
        }
        .copyright {
            border-top: 1px solid #2a2a4a;
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #888;
        }
        .copyright strong {
            color: #ddd;
        }
        friend-link {
            display: block;
            background: #12122e;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            margin: 1rem 0 0;
            font-size: 0.9rem;
        }
        friend-link a {
            color: #f39c12;
            margin: 0 0.3rem;
        }
        friend-link a:hover {
            color: #fff;
        }
        @media(max-width:768px) {
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.2rem;
                padding-top: 0.8rem;
                border-top: 1px solid #2a2a4a;
                margin-top: 0.5rem;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            .nav-toggle {
                display: block;
            }
            .card {
                padding: 1.2rem 1rem;
            }
            .sidebar {
                padding: 1.2rem 1rem;
            }
            .container {
                padding: 0 0.8rem;
            }
            table {
                font-size: 0.85rem;
                min-width: 400px;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
        }
        @media(max-width:480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
            }
        }
        .text-small {
            font-size: 0.85rem;
            color: #666;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 1rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .tag {
            display: inline-block;
            background: #eef1f8;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1a1a2e;
        }
        .tag.gold {
            background: #fef3d0;
            color: #8a6d00;
        }
        .tag.green {
            background: #d4edda;
            color: #155724;
        }
        .emoji-big {
            font-size: 2rem;
            vertical-align: middle;
        }
        .last-updated {
            display: inline-block;
            background: #e8ecf5;
            padding: 0.2rem 1.2rem;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #444;
        }