*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            background: #f8f6f2;
            color: #1e2a2f;
            line-height: 1.75;
            padding: 0 1rem;
        }
        a {
            color: #b45f3a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #7a3e26;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            background: #1e2a2f;
            color: #f8f6f2;
            padding: 0.75rem 0;
            border-bottom: 4px solid #b45f3a;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #f8f6f2;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            color: #e8a87c;
            font-size: 1.4rem;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #e8a87c;
        }
        .my-logo span {
            font-weight: 300;
            color: #e8a87c;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .main-nav a {
            color: #f8f6f2;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .main-nav a:hover {
            border-bottom-color: #e8a87c;
            text-decoration: none;
            color: #e8a87c;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f8f6f2;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
        }
        .breadcrumb {
            background: #fff;
            padding: 0.6rem 1rem;
            border-radius: 8px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            margin: 1.2rem 0 1.8rem 0;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #b45f3a;
        }
        .breadcrumb span {
            color: #6b7a7f;
        }
        .breadcrumb .current {
            color: #1e2a2f;
            font-weight: 600;
        }
        .search-wrap {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem 1.8rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            margin-bottom: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .search-wrap h2 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #1e2a2f;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-right: auto;
        }
        .search-form {
            display: flex;
            flex: 1 1 300px;
            gap: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input:focus {
            border-color: #b45f3a;
        }
        .search-form button {
            background: #b45f3a;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #7a3e26;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media(min-width:768px) {
            .content-grid {
                grid-template-columns: 1fr 300px;
            }
        }
        .main-content {
            background: #fff;
            border-radius: 16px;
            padding: 2rem 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .main-content h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #1e2a2f;
            margin-bottom: 0.5rem;
            line-height: 1.2;
        }
        .main-content h1 i {
            color: #b45f3a;
            margin-right: 0.4rem;
        }
        .last-updated {
            display: block;
            font-size: 0.85rem;
            color: #6b7a7f;
            margin-bottom: 1.8rem;
            border-bottom: 1px solid #eee;
            padding-bottom: 0.8rem;
        }
        .main-content h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #1e2a2f;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            padding-bottom: 0.3rem;
            border-bottom: 3px solid #e8a87c;
        }
        .main-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #2c3e44;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        .main-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #3d535a;
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
        }
        .main-content p {
            margin-bottom: 1.2rem;
        }
        .main-content ul,
        .main-content ol {
            margin-bottom: 1.2rem;
        }
        .main-content li {
            margin-bottom: 0.4rem;
        }
        .main-content .feature-box {
            background: #faf6f0;
            border-left: 4px solid #b45f3a;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .main-content .feature-box i {
            color: #b45f3a;
            margin-right: 0.5rem;
        }
        .content-img {
            border-radius: 16px;
            margin: 1.8rem 0;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            width: 100%;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #1e2a2f;
            border-bottom: 2px solid #e8a87c;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-card li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0ece6;
        }
        .sidebar-card li a {
            font-weight: 500;
        }
        .sidebar-card li i {
            color: #b45f3a;
            width: 1.2rem;
            margin-right: 0.4rem;
        }
        .interaction-area {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 2.5rem;
            padding-top: 1.8rem;
            border-top: 2px solid #eee;
        }
        .rating-box,
        .comment-box {
            flex: 1 1 260px;
            background: #faf6f0;
            border-radius: 14px;
            padding: 1.5rem 1.5rem;
        }
        .rating-box h3,
        .comment-box h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .star-group {
            display: flex;
            gap: 0.4rem;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 0.8rem;
        }
        .star-group i {
            transition: color 0.15s;
        }
        .star-group i.active,
        .star-group i:hover {
            color: #f5b342;
        }
        .rating-box button,
        .comment-box button {
            background: #b45f3a;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 0.4rem;
        }
        .rating-box button:hover,
        .comment-box button:hover {
            background: #7a3e26;
        }
        .comment-box textarea {
            width: 100%;
            border: 2px solid #ddd;
            border-radius: 12px;
            padding: 0.8rem 1rem;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 80px;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .comment-box textarea:focus {
            border-color: #b45f3a;
            outline: none;
        }
        .comment-box .row {
            display: flex;
            gap: 0.6rem;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .comment-box .row input {
            flex: 1;
            min-width: 140px;
            padding: 0.6rem 1rem;
            border: 2px solid #ddd;
            border-radius: 30px;
            font-size: 0.95rem;
        }
        .comment-box .row input:focus {
            border-color: #b45f3a;
            outline: none;
        }
        .site-footer {
            background: #1e2a2f;
            color: #ddd;
            padding: 2.5rem 1rem 1.5rem;
            margin-top: 3rem;
            border-radius: 20px 20px 0 0;
        }
        .footer-inner {
            max-width: 1140px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media(min-width:600px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        .footer-inner h4 {
            color: #e8a87c;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .footer-inner a {
            color: #ccc;
        }
        .footer-inner a:hover {
            color: #e8a87c;
        }
        .footer-inner ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-inner li {
            padding: 0.2rem 0;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem 1.2rem;
            border-radius: 12px;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.5rem;
            padding: 0.2rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 1.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: #aaa;
            grid-column: 1 / -1;
        }
        .copyright i {
            margin: 0 0.3rem;
        }
        @media(max-width:767px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 1rem 0 0.5rem 0;
                gap: 0.6rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.8rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 1rem;
                padding: 0.4rem 0;
            }
            .header-inner {
                position: relative;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .main-content h1 {
                font-size: 1.6rem;
            }
            .main-content {
                padding: 1.2rem 1rem;
            }
            .search-wrap {
                padding: 1rem 1.2rem;
            }
            .search-form input {
                font-size: 0.9rem;
                padding: 0.5rem 0.8rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
            .sidebar-card {
                padding: 1rem 1.2rem;
            }
            .rating-box,
            .comment-box {
                flex: 1 1 100%;
                padding: 1.2rem 1rem;
            }
            .star-group {
                font-size: 1.4rem;
            }
        }
        @media(min-width:768px) {
            .main-nav {
                display: flex !important;
            }
            .hamburger {
                display: none !important;
            }
        }
        .badge {
            display: inline-block;
            background: #e8a87c;
            color: #1e2a2f;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.15rem 0.6rem;
            border-radius: 30px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .highlight {
            background: #fff3e0;
            padding: 0 0.3rem;
            border-radius: 4px;
        }
        .emoji-big {
            font-size: 1.8rem;
        }
        hr {
            border: none;
            border-top: 2px dashed #ddd;
            margin: 2rem 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th {
            background: #1e2a2f;
            color: #f8f6f2;
            padding: 0.6rem 1rem;
            text-align: left;
        }
        table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #eee;
        }
        table tr:nth-child(even) {
            background: #faf6f0;
        }
        .blockquote {
            border-left: 4px solid #b45f3a;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: #faf6f0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3d535a;
        }
        .blockquote i {
            color: #b45f3a;
            margin-right: 0.5rem;
        }
        .toc {
            background: #faf6f0;
            border-radius: 12px;
            padding: 1.2rem 1.8rem;
            margin: 1.5rem 0;
        }
        .toc ul {
            list-style: none;
            padding-left: 0;
        }
        .toc li {
            padding: 0.25rem 0;
        }
        .toc a {
            font-weight: 500;
        }
        .toc a i {
            margin-right: 0.4rem;
            color: #b45f3a;
        }