*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0f1b2d 0%, #1a2a4a 100%);
            color: #fff;
            padding: 16px 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: 1.9rem;
            font-weight: 800;
            color: #fcca46;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #fcca46;
            text-decoration: none;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .my-logo i {
            color: #fcca46;
            margin-right: 6px;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #fcca46;
            color: #fcca46;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s;
        }
        .hamburger:hover {
            background: #fcca46;
            color: #0f1b2d;
        }
        nav {
            display: flex;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0e7f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: all 0.2s;
        }
        nav a:hover {
            color: #fcca46;
            background: rgba(255, 255, 255, 0.08);
            text-decoration: none;
        }
        nav a i {
            margin-right: 5px;
            font-size: 0.85rem;
        }
        .nav-active {
            color: #fcca46 !important;
            background: rgba(252, 202, 70, 0.12);
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.88rem;
            border-bottom: 1px solid #dce1e8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #888;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        main {
            padding: 30px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        article {
            background: #fff;
            border-radius: 20px;
            padding: 35px 30px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #0f1b2d;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        h1 i {
            color: #fcca46;
            margin-right: 10px;
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 24px;
            color: #666;
            font-size: 0.92rem;
            padding-bottom: 18px;
            border-bottom: 2px solid #f0f2f5;
            margin-bottom: 24px;
        }
        .meta-info i {
            margin-right: 5px;
            color: #fcca46;
        }
        .last-updated {
            background: #f0f4fa;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 600;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f1b2d;
            margin-top: 40px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #fcca46;
            display: inline-block;
        }
        h2 i {
            color: #e63946;
            margin-right: 10px;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1a2a4a;
            margin-top: 30px;
            margin-bottom: 12px;
        }
        h3 i {
            color: #1e6f9f;
            margin-right: 8px;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #2c3e50;
            margin-top: 22px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 16px;
            color: #2d3748;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #fcca46;
            padding: 18px 22px;
            border-radius: 10px;
            margin: 20px 0;
        }
        .highlight-box i {
            color: #e63946;
            margin-right: 8px;
        }
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 20px;
        }
        .feature-list li {
            padding: 8px 0 8px 32px;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23fcca46" width="18" height="18"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg>') left center no-repeat;
            background-size: 18px;
        }
        .feature-list li strong {
            color: #0f1b2d;
        }
        .img-wrapper {
            margin: 28px 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .img-wrapper figcaption {
            background: #f0f4fa;
            padding: 10px 16px;
            font-size: 0.88rem;
            color: #555;
            text-align: center;
            font-style: italic;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
        }
        th {
            background: #0f1b2d;
            color: #fcca46;
            padding: 12px 16px;
            font-weight: 700;
        }
        td {
            padding: 10px 16px;
            border-bottom: 1px solid #e2e8f0;
        }
        tr:nth-child(even) {
            background: #f8fafc;
        }
        tr:hover {
            background: #fef9e7;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #fcca46;
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 12px 0 0;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f2f5;
        }
        .sidebar-card ul li a {
            font-weight: 500;
            display: block;
            transition: all 0.2s;
        }
        .sidebar-card ul li a:hover {
            padding-left: 6px;
            color: #e63946;
        }
        .sidebar-card ul li i {
            margin-right: 8px;
            color: #fcca46;
            width: 18px;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #dce1e8;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: #fcca46;
        }
        .search-form button {
            background: #0f1b2d;
            color: #fcca46;
            border: none;
            padding: 0 18px;
            border-radius: 30px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #1a2a4a;
        }
        .comment-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #e2e8f0;
        }
        .comment-section h2 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: #1a2a4a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #dce1e8;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.2s;
            background: #fafbfc;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #fcca46;
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            min-height: 110px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .form-row .form-group {
            flex: 1;
            min-width: 150px;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #fcca46;
        }
        .btn {
            background: #0f1b2d;
            color: #fcca46;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #1a2a4a;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        .btn i {
            font-size: 1.1rem;
        }
        friend-link {
            display: block;
            padding: 20px 0;
            border-top: 2px solid #e2e8f0;
            margin-top: 30px;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
        }
        friend-link ul li a {
            background: #f0f4fa;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: all 0.2s;
            display: inline-block;
        }
        friend-link ul li a:hover {
            background: #fcca46;
            color: #0f1b2d;
            text-decoration: none;
        }
        footer {
            background: #0f1b2d;
            color: #c8d0dc;
            padding: 30px 0 20px;
            text-align: center;
            font-size: 0.92rem;
        }
        footer .copyright {
            border-top: 1px solid #2a3a5a;
            padding-top: 16px;
            margin-top: 16px;
            color: #8a9bb0;
        }
        footer a {
            color: #fcca46;
        }
        footer a:hover {
            color: #fff;
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 16px;
                gap: 6px;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 10px 14px;
                border-radius: 8px;
                background: rgba(255, 255, 255, 0.05);
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            article {
                padding: 20px 16px;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .form-row {
                flex-direction: column;
            }
            .meta-info {
                font-size: 0.82rem;
                gap: 8px 14px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            table {
                font-size: 0.82rem;
            }
            th,
            td {
                padding: 8px 10px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
            .star-rating label {
                font-size: 1.4rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #e9edf2;
        }
        ::-webkit-scrollbar-thumb {
            background: #b0bcc9;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #8a9bb0;
        }
        @media print {
            header,
            .breadcrumb,
            .sidebar,
            .search-form,
            .comment-section,
            friend-link,
            footer {
                display: none !important;
            }
            .content-grid {
                display: block;
            }
            article {
                box-shadow: none;
                padding: 0;
            }
            body {
                background: #fff;
            }
        }