*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0f172a;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5em;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #2563eb;
            padding-bottom: 0.3rem;
            display: inline-block;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.1rem;
            color: #334155;
        }
        p {
            margin: 1rem 0;
            font-size: 1.05rem;
        }
        strong {
            color: #0f172a;
            font-weight: 700;
        }
        em {
            font-style: italic;
            color: #475569;
        }
        blockquote {
            border-left: 5px solid #2563eb;
            background: #eef2ff;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #1e293b;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #fff;
            padding: 1rem 0;
            border-radius: 0 0 20px 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #facc15;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(250, 204, 21, 0.25);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #facc15;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.4rem;
        }
        .breadcrumb {
            background: #e2e8f0;
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            display: inline-flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            margin: 1.2rem 0 0.8rem;
            color: #475569;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: #94a3b8;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin: 1.5rem 0 2rem;
            border: 1px solid #e2e8f0;
        }
        .search-section form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-section input[type="text"]:focus {
            border-color: #2563eb;
        }
        .search-section button {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-section button:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-article {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #eef2ff;
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 1.6rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #eef2ff;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar ul li a {
            color: #1e293b;
            font-weight: 500;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f1f5f9;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            color: #475569;
            text-align: center;
        }
        .rating-section {
            background: #fefce8;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            border: 1px solid #fde68a;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #facc15;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.2s, color 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #f59e0b;
        }
        .rating-form {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .rating-form button {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-form button:hover {
            background: #1d4ed8;
        }
        .comments-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem;
            margin: 2rem 0;
            border: 1px solid #e2e8f0;
        }
        .comments-section h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #2563eb;
            outline: none;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            margin: 0.5rem 0 1rem;
            transition: border 0.3s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #2563eb;
            outline: none;
        }
        .comment-form button {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-form button:hover {
            background: #1e293b;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 1.5rem 1.5rem;
            border-radius: 20px 20px 0 0;
            margin: 3rem 0 0;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #facc15;
            margin: 0 0 0.8rem;
            font-size: 1.1rem;
            border-bottom: 1px solid #334155;
            padding-bottom: 0.4rem;
        }
        .footer-inner a {
            color: #94a3b8;
            display: block;
            padding: 0.2rem 0;
            font-size: 0.95rem;
        }
        .footer-inner a:hover {
            color: #facc15;
            text-decoration: none;
        }
        .friend-link {
            display: block;
            background: #1e293b;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            margin-top: 1rem;
        }
        .friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            color: #93c5fd;
            font-weight: 500;
        }
        .friend-link a:hover {
            color: #facc15;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 1.8rem;
            border-top: 1px solid #1e293b;
            font-size: 0.9rem;
            color: #64748b;
        }
        .last-updated {
            display: inline-block;
            background: #eef2ff;
            color: #2563eb;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin: 0.5rem 0 1rem;
        }
        .last-updated i {
            margin-right: 0.4rem;
        }
        @media (max-width: 1024px) {
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .main-article {
                order: 1;
            }
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-inner {
                padding: 0 0.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 1rem 0 0.5rem;
                gap: 0.5rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 0.6rem 1rem;
                border-radius: 8px;
                background: rgba(255, 255, 255, 0.05);
            }
            .main-article {
                padding: 1.2rem 1rem;
            }
            .sidebar {
                padding: 1.2rem 1rem;
            }
            .search-section {
                padding: 1.2rem 1rem;
            }
            .search-section form {
                flex-direction: column;
            }
            .search-section input[type="text"] {
                min-width: auto;
                width: 100%;
            }
            .search-section button {
                width: 100%;
                justify-content: center;
            }
            .rating-section {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 1.2rem 1rem;
            }
            .rating-form {
                justify-content: center;
            }
            .comments-section {
                padding: 1.2rem 1rem;
            }
            .site-footer {
                padding: 1.5rem 1rem 1rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.2rem;
            }
            h3 {
                font-size: 1.05rem;
            }
            p {
                font-size: 0.98rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
        }
        .highlight-box {
            background: linear-gradient(135deg, #eef2ff, #e0e7ff);
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 1.5rem 0;
            border-left: 6px solid #2563eb;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .tag {
            display: inline-block;
            background: #dbeafe;
            color: #1e40af;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #f8fafc;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #1e293b;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f1f5f9;
        }