*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f8f9fc;
            color: #1e1e2a;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #d84040;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #a82828;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 14px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #111;
            margin-top: 1.2em;
            margin-bottom: 0.5em;
            font-weight: 700;
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
            margin-top: 0.2em;
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            border-left: 5px solid #d84040;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: clamp(1.25rem, 2.5vw, 1.7rem);
        }
        h4 {
            font-size: clamp(1.05rem, 2vw, 1.3rem);
            color: #2a2a3e;
        }
        p {
            margin-bottom: 1.2em;
            word-break: break-word;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
            width: 100%;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
            color: #fff;
            padding: 0.8rem 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;
            gap: 0.6rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: #f5c842;
            font-size: 2rem;
        }
        .my-logo:hover {
            color: #f5c842;
            text-decoration: none;
        }
        .my-logo span {
            background: linear-gradient(to right, #f5c842, #d84040);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 0.4rem 1.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e8e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f5c842;
            text-decoration: none;
        }
        .breadcrumb {
            background: #eef0f5;
            padding: 0.65rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dde0e8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #d84040;
        }
        .breadcrumb .current {
            color: #1a1a2e;
            font-weight: 600;
        }
        .page-wrapper {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:920px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        .article-body {
            background: #fff;
            border-radius: 18px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        @media(max-width:600px) {
            .article-body {
                padding: 1.2rem 1rem;
                border-radius: 12px;
            }
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        @media(max-width:920px) {
            .sidebar {
                position: static;
            }
        }
        .sidebar-card {
            background: #fff;
            border-radius: 18px;
            padding: 1.5rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 1.8rem;
        }
        .sidebar-card h3 {
            margin-top: 0;
            border-bottom: 2px solid #eee;
            padding-bottom: 0.5rem;
            font-size: 1.2rem;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
        }
        .sidebar-links li {
            margin-bottom: 0.6rem;
        }
        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #333;
            font-weight: 500;
            padding: 0.3rem 0;
        }
        .sidebar-links a:hover {
            color: #d84040;
            text-decoration: none;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid #e0e0e8;
            transition: border-color 0.3s;
            background: #fff;
        }
        .search-form:focus-within {
            border-color: #d84040;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.7rem 1.2rem;
            font-size: 0.95rem;
            outline: none;
            background: transparent;
            min-width: 0;
        }
        .search-form button {
            background: #d84040;
            color: #fff;
            border: none;
            padding: 0.7rem 1.4rem;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #a82828;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0 1.5rem;
            padding-top: 1.5rem;
            border-top: 2px solid #eef0f5;
        }
        @media(max-width:650px) {
            .feedback-section {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .feedback-card {
            background: #f5f6fa;
            border-radius: 16px;
            padding: 1.4rem 1.6rem;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea {
            padding: 0.6rem 1rem;
            border: 1.5px solid #d0d4e0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.25s;
            width: 100%;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus {
            border-color: #d84040;
            outline: none;
        }
        .feedback-card textarea {
            resize: vertical;
            min-height: 80px;
        }
        .feedback-card .btn-submit {
            background: #d84040;
            color: #fff;
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            align-self: flex-start;
            font-size: 0.95rem;
        }
        .feedback-card .btn-submit:hover {
            background: #a82828;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ccc;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5c842;
        }
        .last-updated {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: #777;
            margin: 1.2rem 0 0.8rem;
            padding: 0.4rem 0.8rem;
            background: #f0f2f7;
            border-radius: 30px;
            width: fit-content;
        }
        .site-footer {
            background: #0f0f1a;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        @media(max-width:700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .footer-grid h4 {
            color: #f0f0fa;
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #2a2a3e;
            padding-bottom: 0.4rem;
        }
        friend-link {
            display: block;
        }
        friend-link a {
            color: #b0b0c8;
            display: inline-block;
            padding: 0.2rem 0;
            font-size: 0.95rem;
        }
        friend-link a:hover {
            color: #f5c842;
            text-decoration: none;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 1.2rem;
            border-top: 1px solid #2a2a3e;
            text-align: center;
            font-size: 0.85rem;
            color: #888;
        }
        .copyright a {
            color: #bbb;
        }
        .copyright a:hover {
            color: #f5c842;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 0.8rem 0 0.4rem;
                gap: 0.3rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0.8rem;
                width: 100%;
                border-radius: 8px;
            }
            .header-inner {
                align-items: center;
            }
        }
        .feature-highlight {
            background: linear-gradient(to right, #fdf6f0, #fff8f0);
            border-left: 5px solid #d84040;
            padding: 1.2rem 1.8rem;
            border-radius: 0 14px 14px 0;
            margin: 1.8rem 0;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .inline-icon {
            margin-right: 0.3rem;
        }
        .btn-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #d84040;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: background 0.25s, transform 0.2s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .btn-top:hover {
            background: #a82828;
            transform: scale(1.05);
        }
        @media(max-width:500px) {
            .btn-top {
                bottom: 1rem;
                right: 1rem;
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border: 1px solid #e0e4ec;
            text-align: left;
        }
        th {
            background: #f0f2f7;
            font-weight: 700;
        }
        tr:nth-child(even) {
            background: #fafbfd;
        }
        .featured-img {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
        }
        .featured-img figcaption {
            font-size: 0.85rem;
            color: #666;
            padding: 0.6rem 0.2rem 0;
            text-align: center;
        }
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f0f0f5;
        }
        ::-webkit-scrollbar-thumb {
            background: #b0b0c8;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #9090a8;
        }
        @media print {
            .site-header,
            .site-footer,
            .btn-top,
            .sidebar,
            .feedback-section,
            .search-form {
                display: none !important;
            }
            .article-body {
                box-shadow: none;
                padding: 0;
            }
            body {
                background: #fff;
                font-size: 12pt;
            }
        }