*,
        *::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;
            line-height: 1.8;
            color: #1e1e2a;
            background: #f8f7fc;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        :root {
            --primary: #6c2bd9;
            --primary-dark: #4a1a96;
            --secondary: #f1c40f;
            --accent: #e74c3c;
            --bg-light: #f8f7fc;
            --bg-card: #ffffff;
            --text-dark: #1e1e2a;
            --text-muted: #5a5a72;
            --border-light: #e8e6f0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --radius-sm: 8px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .site-header {
            background: linear-gradient(135deg, #1e1e2a 0%, #2d1b69 100%);
            color: #fff;
            padding: 0 1.5rem;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: opacity 0.2s;
            text-decoration: none;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo span {
            background: linear-gradient(to right, #f1c40f, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo i {
            color: #f1c40f;
            font-size: 2rem;
            -webkit-text-fill-color: initial;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            padding: 0;
        }
        .nav-desktop a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            position: relative;
            transition: color 0.2s;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: #f1c40f;
            transition: width 0.3s;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .nav-desktop a:hover {
            color: #fff;
            text-decoration: none;
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem;
            line-height: 1;
            z-index: 110;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(30, 30, 42, 0.98);
            padding: 2rem 1.5rem;
            z-index: 105;
            overflow-y: auto;
            flex-direction: column;
            gap: 1.2rem;
            backdrop-filter: blur(10px);
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 500;
            padding: 0.6rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav a:hover {
            color: #f1c40f;
            text-decoration: none;
        }
        .breadcrumb-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0.75rem 1.5rem;
            background: #fff;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            list-style: none;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: '›';
            margin: 0 0.4rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem 1.5rem 3rem;
            flex: 1;
            width: 100%;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 2.5rem 2.8rem;
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 0.6rem;
            color: #1e1e2a;
        }
        h1 .highlight {
            background: linear-gradient(135deg, #6c2bd9, #e74c3c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            align-items: center;
            margin: 1rem 0 1.8rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 1rem;
        }
        .meta-info i {
            margin-right: 0.3rem;
        }
        .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: #2d1b69;
            border-left: 5px solid var(--primary);
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #1e1e2a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #2d1b69;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .content-img {
            margin: 2rem 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #f0eef5;
        }
        .content-img img {
            width: 100%;
            object-fit: cover;
        }
        .content-img figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: #f8f7fc;
            border-top: 1px solid var(--border-light);
            font-style: italic;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 1.5rem 1.2rem;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-card i {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }
        .feature-card h4 {
            margin-top: 0.2rem;
            margin-bottom: 0.3rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .inline-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin: 1.5rem 0;
            padding: 1rem 1.2rem;
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
        }
        .inline-links a {
            font-weight: 500;
            font-size: 0.95rem;
        }
        .inline-links a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
            color: var(--primary);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8rem 0;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .data-table thead {
            background: var(--primary);
            color: #fff;
        }
        .data-table th,
        .data-table td {
            padding: 0.8rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid var(--border-light);
        }
        .data-table tbody tr:hover {
            background: #f4f0fc;
        }
        .search-section {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 2rem 1.8rem;
            margin: 2.5rem 0;
            border: 1px solid var(--border-light);
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-top: 1rem;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            padding: 0.8rem 2rem;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        .search-form button:active {
            transform: scale(0.97);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 1.8rem 1.8rem 2rem;
            border: 1px solid var(--border-light);
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 2px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--primary);
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 0.7rem 1.8rem;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: var(--primary-dark);
        }
        .star-select {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-select .star {
            transition: color 0.2s;
        }
        .star-select .star.active,
        .star-select .star:hover {
            color: #f1c40f;
        }
        .site-footer {
            background: #1e1e2a;
            color: rgba(255, 255, 255, 0.8);
            padding: 2.5rem 1.5rem 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-inner h4 {
            color: #fff;
            margin-top: 0;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: rgba(255, 255, 255, 0.7);
            display: block;
            padding: 0.25rem 0;
            font-size: 0.9rem;
        }
        .footer-inner a:hover {
            color: #f1c40f;
            text-decoration: none;
        }
        friend-link {
            display: block;
            grid-column: 1 / -1;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            padding: 1.5rem 1.8rem;
            margin-top: 1rem;
        }
        friend-link::before {
            content: '🌐 Friend Links';
            display: block;
            font-weight: 700;
            color: #f1c40f;
            font-size: 1rem;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.5rem;
            margin-bottom: 0.3rem;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        @media (max-width: 1024px) {
            .article-body {
                padding: 1.8rem 1.5rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger-btn {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .header-inner {
                height: 60px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            .main-wrap {
                padding: 1rem 0.8rem 2rem;
            }
            .breadcrumb-wrap {
                padding: 0.5rem 1rem;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .feature-card {
                padding: 1rem 0.8rem;
            }
            .feature-card i {
                font-size: 1.6rem;
            }
            .data-table {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            friend-link a {
                display: block;
                margin-right: 0;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                min-width: auto;
            }
            .feedback-grid {
                gap: 1.2rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.3rem;
                align-items: flex-start;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f0eef5;
        }
        ::-webkit-scrollbar-thumb {
            background: #b8b0cc;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #9a8fb8;
        }
        .anchor-offset {
            scroll-margin-top: 80px;
        }
        @media print {
            .site-header {
                position: static;
            }
            .hamburger-btn,
            .mobile-nav {
                display: none !important;
            }
            .search-section,
            .feedback-grid {
                break-inside: avoid;
            }
        }