*,
        *::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, sans-serif;
            background: #f5f1e8;
            color: #2d2a24;
            line-height: 1.75;
            padding: 0;
            margin: 0;
        }
        a {
            color: #4a7c59;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #2e5a3a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #2d4a3a;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 3px solid #b5a88a;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #7c9a7a;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #3d5a4a;
        }
        h4 {
            font-size: 1.15rem;
            color: #4d6a5a;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin-bottom: 1.2rem;
            padding-left: 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        blockquote {
            background: #e8e2d4;
            border-left: 5px solid #7c9a7a;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        code {
            background: #2d2a24;
            color: #e8e2d4;
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            font-size: 0.9rem;
            font-family: 'Courier New', monospace;
        }
        pre {
            background: #2d2a24;
            color: #e8e2d4;
            padding: 1rem 1.2rem;
            border-radius: 8px;
            overflow-x: auto;
            margin-bottom: 1.5rem;
            font-size: 0.9rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        header {
            background: linear-gradient(145deg, #2d4a3a, #1d2f2a);
            color: #f5f1e8;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #f5e6c8;
            text-shadow: 2px 2px 0 #4a7c59;
            transition: transform 0.2s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffd700;
        }
        .my-logo i {
            margin-right: 0.4rem;
            color: #ffd700;
        }
        nav.main-nav ul {
            list-style: none;
            display: flex;
            gap: 1.8rem;
            padding: 0;
            margin: 0;
            align-items: center;
        }
        nav.main-nav ul li a {
            color: #e8e2d4;
            font-weight: 500;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: all 0.25s ease;
            font-size: 1rem;
        }
        nav.main-nav ul li a:hover {
            color: #ffd700;
            border-bottom-color: #ffd700;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #f5e6c8;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            transition: background 0.2s ease;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #e8e2d4;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d4c9b4;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #7c9a7a;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #4a7c59;
        }
        .breadcrumb .current {
            color: #2d4a3a;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #3d5a4a 0%, #1d2f2a 100%);
            color: #f5f1e8;
            padding: 2.5rem 0;
            text-align: center;
            border-bottom: 4px solid #b5a88a;
        }
        .hero h1 {
            color: #ffd700;
            border-bottom: none;
            margin-top: 0;
            font-size: 2.6rem;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 750px;
            margin: 0.8rem auto 0;
            opacity: 0.9;
        }
        .hero .meta-info {
            margin-top: 1.2rem;
            font-size: 0.95rem;
            color: #c4b89a;
        }
        .hero .meta-info i {
            margin: 0 0.3rem;
        }
        .search-section {
            background: #fffcf5;
            padding: 1.5rem 0;
            border-bottom: 1px solid #d4c9b4;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.8rem 1.2rem;
            border: 2px solid #c4b89a;
            border-radius: 30px;
            font-size: 1rem;
            background: #fff;
            transition: border-color 0.3s ease;
            outline: none;
        }
        .search-form input[type="text"]:focus {
            border-color: #4a7c59;
        }
        .search-form button {
            background: #4a7c59;
            color: #fff;
            border: none;
            padding: 0.8rem 1.6rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #2e5a3a;
        }
        .page-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .toc {
            background: #fffcf5;
            border: 1px solid #d4c9b4;
            border-radius: 12px;
            padding: 1.5rem 1.8rem;
            margin-bottom: 2.5rem;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.3rem;
            color: #2d4a3a;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .toc ul {
            list-style: none;
            padding: 0;
            margin: 0.8rem 0 0;
        }
        .toc ul li {
            padding: 0.3rem 0;
            border-bottom: 1px dashed #e8e2d4;
        }
        .toc ul li:last-child {
            border-bottom: none;
        }
        .toc ul li a {
            color: #4a7c59;
            font-weight: 500;
        }
        .toc ul li a:hover {
            color: #2e5a3a;
        }
        .card {
            background: #fffcf5;
            border: 1px solid #d4c9b4;
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            transition: box-shadow 0.3s ease;
        }
        .card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }
        .card h3 {
            margin-top: 0;
        }
        .item-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        .item-table th {
            background: #2d4a3a;
            color: #f5e6c8;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .item-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e8e2d4;
        }
        .item-table tr:nth-child(even) {
            background: #faf7f0;
        }
        .item-table tr:hover {
            background: #e8f0e4;
        }
        .item-table .code-cell {
            font-family: 'Courier New', monospace;
            background: #2d2a24;
            color: #ffd700;
            padding: 0.2rem 0.8rem;
            border-radius: 4px;
            font-size: 0.85rem;
            white-space: nowrap;
        }
        .sidebar-widget {
            background: #fffcf5;
            border: 1px solid #d4c9b4;
            border-radius: 12px;
            padding: 1.4rem;
            margin-bottom: 1.8rem;
        }
        .sidebar-widget h4 {
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #b5a88a;
            padding-bottom: 0.5rem;
            color: #2d4a3a;
        }
        .sidebar-widget ul {
            list-style: none;
            padding: 0;
            margin: 0.8rem 0 0;
        }
        .sidebar-widget ul li {
            padding: 0.5rem 0;
            border-bottom: 1px dashed #e8e2d4;
        }
        .sidebar-widget ul li:last-child {
            border-bottom: none;
        }
        .sidebar-widget ul li a {
            color: #4a7c59;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar-widget ul li a:hover {
            color: #2e5a3a;
        }
        .rating-area {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            padding: 0.8rem 0;
        }
        .stars {
            display: flex;
            gap: 0.2rem;
            font-size: 1.6rem;
            color: #d4c9b4;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .stars i:hover,
        .stars i.active {
            color: #ffb800;
        }
        .stars i.active {
            color: #ffb800;
        }
        .score-btn {
            background: #4a7c59;
            color: #fff;
            border: none;
            padding: 0.5rem 1.4rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease;
        }
        .score-btn:hover {
            background: #2e5a3a;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 1rem;
        }
        .comment-form textarea {
            padding: 0.8rem 1rem;
            border: 2px solid #c4b89a;
            border-radius: 8px;
            font-size: 1rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            transition: border-color 0.3s ease;
            outline: none;
        }
        .comment-form textarea:focus {
            border-color: #4a7c59;
        }
        .comment-form input[type="text"] {
            padding: 0.7rem 1rem;
            border: 2px solid #c4b89a;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
            outline: none;
        }
        .comment-form input[type="text"]:focus {
            border-color: #4a7c59;
        }
        .comment-form button {
            background: #4a7c59;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: background 0.25s ease;
        }
        .comment-form button:hover {
            background: #2e5a3a;
        }
        footer {
            background: #1d2f2a;
            color: #c4b89a;
            padding: 2.5rem 0 1.5rem;
            border-top: 4px solid #4a7c59;
            margin-top: 2rem;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        footer h4 {
            color: #f5e6c8;
            margin-top: 0;
            font-size: 1.1rem;
        }
        footer a {
            color: #b5a88a;
        }
        footer a:hover {
            color: #ffd700;
        }
        footer .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #3d5a4a;
            padding-top: 1.2rem;
            margin-top: 1.2rem;
            text-align: center;
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            margin-top: 0.6rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.4rem;
        }
        @media (max-width: 992px) {
            .page-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            html {
                font-size: 15px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hamburger {
                display: block;
            }
            nav.main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1d2f2a;
                padding: 1rem 0;
                border-radius: 0 0 12px 12px;
                gap: 0.2rem;
                margin-top: 0.6rem;
            }
            nav.main-nav ul li {
                text-align: center;
            }
            nav.main-nav ul li a {
                display: block;
                padding: 0.6rem 1rem;
                border-bottom: none;
            }
            #nav-toggle:checked~nav.main-nav ul {
                display: flex;
            }
            header .container {
                position: relative;
            }
            nav.main-nav {
                width: 100%;
            }
            #nav-toggle:checked~nav.main-nav ul {
                display: flex;
            }
            .hamburger-label {
                display: block;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            footer .container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .item-table {
                font-size: 0.85rem;
            }
            .item-table th,
            .item-table td {
                padding: 0.4rem 0.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .toc {
                padding: 1rem;
            }
            .card {
                padding: 1rem;
            }
            .sidebar-widget {
                padding: 1rem;
            }
            .stars {
                font-size: 1.3rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .badge {
            display: inline-block;
            background: #4a7c59;
            color: #fff;
            padding: 0.15rem 0.7rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .badge-warn {
            background: #b8860b;
        }
        .badge-info {
            background: #3a6a8a;
        }
        .highlight {
            background: #f5e6c8;
            padding: 0 0.3rem;
            border-radius: 3px;
        }
        :target {
            scroll-margin-top: 100px;
        }
        .featured-img {
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            padding: 0;
            list-style: none;
        }
        .link-list-inline li a {
            font-weight: 500;
        }