*,
        *::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: #f4f7fa;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 0 0 0;
            min-height: 100vh;
        }
        a {
            color: #b22222;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #8b1a1a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            color: #0b1e2e;
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 0.75rem;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.2rem;
            margin-bottom: 0.6rem;
            border-left: 5px solid #b22222;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 1.8rem;
            margin-bottom: 0.4rem;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1e2e 0%, #1a3a4a 100%);
            color: #fff;
            padding: 0.8rem 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;
            gap: 0.5rem 1.2rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            text-decoration: none !important;
        }
        .my-logo:hover {
            color: #f0c040;
            text-decoration: none !important;
        }
        .my-logo i {
            color: #f0c040;
            font-size: 1.6rem;
        }
        .my-logo span {
            font-weight: 300;
            font-size: 0.9rem;
            color: #c0d0d8;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
        }
        .main-nav li a {
            color: #e8f0f4;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            display: inline-block;
            text-decoration: none !important;
        }
        .main-nav li a:hover,
        .main-nav li a:focus-visible {
            background: rgba(255, 255, 255, 0.15);
            color: #f0c040;
            text-decoration: none !important;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb-wrap {
            background: #e9edf2;
            padding: 0.5rem 0;
            border-bottom: 1px solid #d0d8e0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.88rem;
            color: #4a5a6a;
            list-style: none;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #8a9aa8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2a5a7a;
        }
        .breadcrumb a:hover {
            color: #b22222;
        }
        .breadcrumb .active {
            color: #1a2634;
            font-weight: 600;
        }
        .main-wrap {
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 2rem 2.2rem;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
        }
        .article-body .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            font-size: 0.92rem;
            color: #4a6a7a;
            border-bottom: 1px solid #e8edf2;
            padding-bottom: 1rem;
            margin-bottom: 1.6rem;
        }
        .article-body .meta i {
            margin-right: 0.3rem;
            color: #b22222;
        }
        .article-body .meta .last-updated {
            font-weight: 600;
            color: #1a3a4a;
        }
        .featured-image {
            margin: 1.6rem 0 2rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-image figcaption {
            font-size: 0.85rem;
            color: #5a6a7a;
            padding: 0.6rem 0.2rem 0;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.4rem 1.6rem;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            color: #0b1e2e;
            border-bottom: 2px solid #e8edf2;
            padding-bottom: 0.5rem;
        }
        .link-list {
            list-style: none;
            padding: 0;
        }
        .link-list li {
            margin-bottom: 0.55rem;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
            color: #1a3a4a;
            font-size: 0.92rem;
        }
        .link-list a:hover {
            background: #f0f4f8;
            color: #b22222;
            text-decoration: none;
        }
        .link-list a i {
            color: #b22222;
            font-size: 0.75rem;
            width: 1.2rem;
            text-align: center;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin: 1.2rem 0;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #d0d8e0;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            background: #f9fbfc;
        }
        .search-form input:focus {
            border-color: #b22222;
        }
        .search-form button {
            padding: 0.7rem 1.6rem;
            background: #b22222;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-size: 0.95rem;
        }
        .search-form button:hover {
            background: #8b1a1a;
            transform: scale(1.02);
        }
        .feedback-section {
            margin-top: 2.8rem;
            padding-top: 2rem;
            border-top: 2px solid #e8edf2;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
        }
        @media(max-width:640px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-form textarea,
        .comment-form input,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d0d8e0;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            background: #f9fbfc;
            font-family: inherit;
        }
        .comment-form textarea:focus,
        .comment-form input:focus,
        .rating-form select:focus,
        .rating-form input:focus {
            border-color: #b22222;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form .btn-submit,
        .rating-form .btn-submit {
            padding: 0.7rem 2rem;
            background: #b22222;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }
        .comment-form .btn-submit:hover,
        .rating-form .btn-submit:hover {
            background: #8b1a1a;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #f0c040;
            margin: 0.4rem 0;
        }
        .rating-stars i {
            cursor: pointer;
            transition: transform 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.15);
        }
        .site-footer {
            background: #0b1e2e;
            color: #c8d8e4;
            padding: 2.5rem 0 1.2rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media(max-width:720px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .site-footer h4 {
            color: #f0c040;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .site-footer a {
            color: #b0c8d8;
        }
        .site-footer a:hover {
            color: #f0c040;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 0.8rem 1rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
            border-left: 3px solid #f0c040;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.4rem;
            padding: 0.2rem 0;
        }
        .copyright {
            border-top: 1px solid #2a4a5a;
            padding-top: 1.2rem;
            margin-top: 1.2rem;
            text-align: center;
            font-size: 0.88rem;
            color: #8aa0b0;
        }
        @media(max-width:800px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0b1e2e;
                padding: 0.8rem 0 1rem;
                border-radius: 0 0 16px 16px;
                gap: 0.1rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li a {
                padding: 0.6rem 1rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .header-inner {
                align-items: center;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 0.8rem;
            }
            .article-body {
                padding: 1rem 0.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        .highlight {
            background: #fef6e0;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .quote-block {
            background: #f0f4f8;
            border-left: 5px solid #b22222;
            padding: 1rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
            font-style: italic;
            color: #2a4a5a;
        }
        .quote-block cite {
            display: block;
            margin-top: 0.5rem;
            font-weight: 600;
            color: #0b1e2e;
            font-style: normal;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.4rem 0;
        }
        .stat-card {
            background: #f0f4f8;
            padding: 1rem 0.8rem;
            border-radius: 12px;
            text-align: center;
            border-bottom: 3px solid #b22222;
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: #b22222;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #4a6a7a;
            margin-top: 0.2rem;
        }
        .table-responsive {
            overflow-x: auto;
            margin: 1.4rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #f9fbfc;
            border-radius: 10px;
            overflow: hidden;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e0e8f0;
        }
        th {
            background: #0b1e2e;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f0f4f8;
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }
        .skip-link {
            position: absolute;
            top: -100px;
            left: 0;
            background: #b22222;
            color: #fff;
            padding: 0.6rem 1.2rem;
            border-radius: 0 0 8px 0;
            z-index: 9999;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }