*,
        *::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: #faf8f4;
            color: #222;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #B22222;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #8B1A1A;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
            color: #1B2A3C;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
            border-bottom: 4px solid #C0392B;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #C0392B;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #2C3E50;
        }
        h4 {
            font-size: 1.1rem;
            color: #34495E;
        }
        p {
            margin-bottom: 1.1rem;
        }
        ul,
        ol {
            margin-bottom: 1.2rem;
            padding-left: 1.6rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        strong {
            color: #1B2A3C;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #1B2A3C 0%, #2C3E50 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #F5F0E1;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.88;
            text-decoration: none;
            color: #F5F0E1;
        }
        .my-logo i {
            color: #E74C3C;
            font-size: 1.9rem;
        }
        .my-logo span {
            font-weight: 300;
            color: #D4A017;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.2rem;
            padding: 0;
            margin: 0;
        }
        .nav-list a {
            color: #f0ede8;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: border-color 0.25s, color 0.25s;
        }
        .nav-list a:hover {
            border-bottom-color: #E74C3C;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        .breadcrumb {
            background: #f0ebe3;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.4rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #888;
        }
        .breadcrumb a {
            color: #B22222;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .page-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.2rem;
            padding: 2rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        .card {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            padding: 1.6rem;
            margin-bottom: 1.8rem;
            border: 1px solid #eee;
            transition: box-shadow 0.25s;
        }
        .card:hover {
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.10);
        }
        .card h3 {
            margin-top: 0;
        }
        .featured-image {
            border-radius: 12px;
            margin: 1.2rem 0 1.8rem;
            background: #e8e3da;
            overflow: hidden;
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
            max-height: 420px;
        }
        .featured-image figcaption {
            padding: 0.6rem 1rem;
            background: #f5f0e8;
            font-size: 0.85rem;
            color: #555;
            font-style: italic;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            margin: 1.2rem 0;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #ccc;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.25s;
        }
        .search-form input:focus {
            border-color: #C0392B;
        }
        .search-form button {
            background: #C0392B;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #A93226;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.6rem;
            margin: 0.6rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ccc;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 0.95rem;
            min-height: 100px;
            resize: vertical;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #C0392B;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-top: 0.6rem;
        }
        .comment-form .form-row input {
            flex: 1;
            padding: 0.6rem 0.8rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 0.9rem;
            min-width: 160px;
        }
        .comment-form .form-row input:focus {
            border-color: #C0392B;
            outline: none;
        }
        .comment-form .btn-primary {
            background: #1B2A3C;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-form .btn-primary:hover {
            background: #2C3E50;
        }
        .link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .link-list li {
            padding: 0.45rem 0;
            border-bottom: 1px solid #f0ece6;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .link-list a i {
            color: #C0392B;
            width: 1.2rem;
            text-align: center;
        }
        friend-link {
            display: block;
            padding: 1.2rem 0 0.6rem;
            border-top: 2px solid #ddd;
            margin-top: 1.2rem;
        }
        friend-link .friend-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.6rem;
            color: #1B2A3C;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            color: #B22222;
        }
        .site-footer {
            background: #1B2A3C;
            color: #ddd;
            padding: 2rem 0 1.2rem;
            margin-top: auto;
            font-size: 0.9rem;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .site-footer a {
            color: #e8c87a;
        }
        .site-footer a:hover {
            color: #f5e3b0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid #2C3E50;
            margin-top: 1.2rem;
            width: 100%;
            font-size: 0.85rem;
            color: #aaa;
        }
        @media (max-width: 820px) {
            .page-grid {
                grid-template-columns: 1fr;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1B2A3C;
                padding: 1rem 0.5rem;
                gap: 0.3rem;
                margin-top: 0.8rem;
                border-top: 1px solid #2C3E50;
            }
            .nav-list.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
                padding-left: 0.7rem;
            }
            .site-footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (min-width:821px) {
            .nav-list {
                display: flex !important;
            }
            .hamburger {
                display: none !important;
            }
        }
        .schema-hidden {
            display: none;
        }
        .badge {
            display: inline-block;
            background: #D4A017;
            color: #1B2A3C;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .highlight-box {
            background: #f0ebe3;
            border-left: 5px solid #C0392B;
            padding: 1rem 1.4rem;
            border-radius: 0 10px 10px 0;
            margin: 1.4rem 0;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.4rem;
            margin: 1.2rem 0;
        }
        @media (max-width:600px) {
            .two-col {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-wrap: wrap;
            }
            .search-form input {
                min-width: 100%;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.6rem 0.8rem;
            border: 1px solid #ddd;
            text-align: left;
        }
        th {
            background: #1B2A3C;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f9f6f2;
        }
        .toc {
            background: #f5f0e8;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin: 1.2rem 0 2rem;
        }
        .toc ol {
            margin: 0.4rem 0 0 1.2rem;
        }
        .toc a {
            color: #1B2A3C;
        }