*,
        *::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, BlinkMacSystemFont, sans-serif;
            background: #f5f7fc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #1d4ed8;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #0f3a9e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1e3a;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 3px solid #f59e0b;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
            padding: 1.5rem 2rem 2.5rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0 0.8rem;
            border-bottom: 2px solid #e9edf4;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(145deg, #f59e0b, #b45309);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #f59e0b;
            font-size: 1.8rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #475569;
            font-weight: 400;
            letter-spacing: 0.3px;
            margin-left: 0.5rem;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            font-weight: 500;
            color: #1e293b;
            padding: 0.4rem 0.8rem;
            border-radius: 30px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-bar a:hover,
        .nav-bar a.active {
            background: #f59e0b;
            color: #0b1e3a;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #1e293b;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f1f5f9;
        }
        #nav-toggle {
            display: none;
        }
        .nav-overlay {
            display: none;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #1d4ed8;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #0b1e3a;
            font-weight: 500;
        }
        .search-wrap {
            display: flex;
            gap: 0.5rem;
            margin: 1.5rem 0 1rem;
            flex-wrap: wrap;
        }
        .search-wrap input {
            flex: 1;
            min-width: 180px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
            background: #f8fafc;
        }
        .search-wrap input:focus {
            border-color: #f59e0b;
            background: #fff;
        }
        .search-wrap button {
            padding: 0.75rem 1.8rem;
            border: none;
            border-radius: 40px;
            background: #f59e0b;
            color: #0b1e3a;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1rem;
        }
        .search-wrap button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .hero-img {
            margin: 1.8rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            background: #eef2f7;
            text-align: center;
        }
        .hero-img img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .hero-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            color: #475569;
            background: #f1f5f9;
            font-style: italic;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
            margin-top: 1.5rem;
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            border: 1px solid #e9edf4;
            align-self: start;
            position: sticky;
            top: 1rem;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #f59e0b;
            padding-bottom: 0.4rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #e9edf4;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 500;
        }
        .sidebar ul li a i {
            color: #f59e0b;
            width: 1.2rem;
            text-align: center;
        }
        .link-list {
            list-style: none;
            padding-left: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin: 1.2rem 0;
        }
        .link-list li a {
            background: #f1f5f9;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #1e293b;
            transition: background 0.2s, color 0.2s;
            display: inline-block;
        }
        .link-list li a:hover {
            background: #f59e0b;
            color: #0b1e3a;
            text-decoration: none;
        }
        .comment-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e9edf4;
        }
        .comment-section h2 {
            border-bottom: none;
            margin-top: 0;
        }
        .comment-form {
            display: grid;
            gap: 1rem;
            margin: 1.2rem 0 2rem;
            max-width: 700px;
        }
        .comment-form input,
        .comment-form textarea {
            padding: 0.8rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
            background: #f8fafc;
        }
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: #f59e0b;
            background: #fff;
        }
        .comment-form textarea {
            min-height: 110px;
            resize: vertical;
        }
        .comment-form button {
            padding: 0.8rem 2rem;
            border: none;
            border-radius: 40px;
            background: #1d4ed8;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 1rem;
            width: fit-content;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-form button:hover {
            background: #1e40af;
            transform: scale(1.02);
        }
        .rating-wrap {
            background: #f1f5f9;
            padding: 1.5rem 2rem;
            border-radius: 16px;
            margin: 1.5rem 0 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem 2.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 2rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: color 0.15s;
        }
        .rating-stars i.active,
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: #f59e0b;
        }
        .rating-stars i {
            transition: color 0.15s;
        }
        .rating-stars i:hover {
            color: #f59e0b;
            transform: scale(1.1);
        }
        .rating-form {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .rating-form button {
            padding: 0.6rem 1.6rem;
            border: none;
            border-radius: 40px;
            background: #f59e0b;
            color: #0b1e3a;
            font-weight: 600;
            cursor: pointer;
            font-size: 0.95rem;
            transition: background 0.2s;
        }
        .rating-form button:hover {
            background: #d97706;
        }
        .site-footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e9edf4;
            font-size: 0.95rem;
            color: #475569;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-grid h4 {
            margin-top: 0;
            font-size: 1rem;
            color: #0b1e3a;
        }
        .footer-grid ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-grid ul li {
            padding: 0.25rem 0;
        }
        .footer-grid ul li a {
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            border-top: 1px solid #e2e8f0;
            margin-top: 1rem;
            font-weight: 500;
        }
        friend-link a {
            margin: 0 0.5rem 0 0;
        }
        .copyright {
            text-align: center;
            padding: 1.2rem 0 0.5rem;
            font-size: 0.85rem;
            color: #64748b;
            border-top: 1px solid #e2e8f0;
            margin-top: 1rem;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #475569;
            margin-bottom: 0.5rem;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
                margin-top: 2rem;
            }
            .container {
                padding: 1rem 1.2rem 1.8rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 680px) {
            .hamburger {
                display: block;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #ffffff;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #e9edf4;
                margin-top: 0.8rem;
            }
            .nav-bar a {
                padding: 0.7rem 1rem;
                border-radius: 10px;
            }
            #nav-toggle:checked~.nav-bar {
                display: flex;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .rating-wrap {
                flex-direction: column;
                align-items: stretch;
                padding: 1.2rem;
            }
            .rating-stars {
                font-size: 1.6rem;
                justify-content: center;
            }
            .search-wrap button {
                padding: 0.75rem 1.2rem;
                font-size: 0.9rem;
            }
            .container {
                padding: 0.8rem 0.8rem 1.2rem;
                border-radius: 12px;
            }
            body {
                padding: 0 0.4rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        .text-muted {
            color: #64748b;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .badge {
            display: inline-block;
            background: #f59e0b;
            color: #0b1e3a;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .data-table th {
            background: #0b1e3a;
            color: #fff;
            padding: 0.75rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e9edf4;
        }
        .data-table tr:nth-child(even) {
            background: #f8fafc;
        }
        .data-table tr:hover {
            background: #f1f5f9;
        }
        blockquote {
            border-left: 5px solid #f59e0b;
            background: #f8fafc;
            padding: 1.2rem 1.8rem;
            margin: 1.8rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #334155;
        }
        blockquote strong {
            color: #0b1e3a;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.2rem;
            margin: 1.5rem 0;
        }
        .card {
            background: #f8fafc;
            border-radius: 14px;
            padding: 1.2rem 1.2rem 1.5rem;
            border: 1px solid #e9edf4;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }
        .card i {
            font-size: 2rem;
            color: #f59e0b;
            margin-bottom: 0.5rem;
        }
        .card h4 {
            margin-top: 0.2rem;
            font-size: 1.1rem;
        }