*,
        *::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', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.8;
            color: #1e293b;
            background: #f8fafc;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0f172a;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #f59e0b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.1rem;
            color: #334155;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #fff;
            padding: 1rem 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: 1rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fbbf24;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(251, 191, 36, 0.3);
            transition: transform 0.2s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #fbbf24;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            display: block;
        }
        .nav-list li a:hover {
            background: rgba(251, 191, 36, 0.15);
            color: #fbbf24;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #e2e8f0;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            color: #475569;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ol li+li::before {
            content: " ▸ ";
            color: #94a3b8;
            margin: 0 0.3rem;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #0f172a;
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .article-content {
            background: #fff;
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            font-size: 0.85rem;
            color: #64748b;
            border-bottom: 2px solid #f1f5f9;
            padding-bottom: 1.2rem;
            margin-bottom: 2rem;
        }
        .article-meta i {
            margin-right: 0.4rem;
            color: #f59e0b;
        }
        .last-updated {
            font-weight: 600;
            color: #0f172a;
        }
        .featured-image-wrap {
            margin: 1.8rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image-wrap img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/9;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .featured-image-wrap img:hover {
            transform: scale(1.02);
        }
        .featured-image-wrap figcaption {
            background: #f1f5f9;
            padding: 0.6rem 1rem;
            font-size: 0.8rem;
            color: #475569;
            text-align: center;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1.2rem;
            border-bottom: 3px solid #f59e0b;
            padding-bottom: 0.5rem;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-links li {
            margin-bottom: 0.6rem;
        }
        .sidebar-links li a {
            display: block;
            padding: 0.6rem 1rem;
            background: #f8fafc;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, transform 0.2s;
            border-left: 3px solid transparent;
        }
        .sidebar-links li a:hover {
            background: #eef2ff;
            border-left-color: #f59e0b;
            transform: translateX(4px);
            text-decoration: none;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 50px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
            min-width: 120px;
        }
        .search-form input:focus {
            border-color: #f59e0b;
        }
        .search-form button {
            background: #f59e0b;
            color: #0f172a;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
            font-size: 0.95rem;
        }
        .search-form button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .comment-section,
        .rating-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #f1f5f9;
        }
        .comment-section h3,
        .rating-section h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 14px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #f59e0b;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .comment-form .form-row input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 50px;
            font-size: 0.95rem;
            outline: none;
            min-width: 150px;
            transition: border-color 0.2s;
        }
        .comment-form .form-row input:focus {
            border-color: #f59e0b;
        }
        .comment-form .btn-submit {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
            font-size: 0.95rem;
        }
        .comment-form .btn-submit:hover {
            background: #1e293b;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            font-size: 2rem;
            margin: 0.8rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #cbd5e1;
            transition: color 0.2s, transform 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        .rating-form .btn-submit {
            background: #f59e0b;
            color: #0f172a;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
            font-size: 0.95rem;
            margin-top: 0.5rem;
        }
        .rating-form .btn-submit:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .highlight-box {
            background: linear-gradient(135deg, #fffbeb, #fef3c7);
            border-left: 6px solid #f59e0b;
            padding: 1.5rem 2rem;
            border-radius: 16px;
            margin: 2rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .emoji-big {
            font-size: 1.6rem;
            margin-right: 0.3rem;
        }
        friend-link {
            display: block;
            background: #1e293b;
            color: #e2e8f0;
            padding: 2rem 0;
            margin-top: 2rem;
            text-align: center;
            border-radius: 20px 20px 0 0;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.2rem 2.5rem;
        }
        friend-link a {
            color: #fbbf24;
            font-weight: 500;
            transition: color 0.2s;
        }
        friend-link a:hover {
            color: #fff;
            text-decoration: underline;
        }
        friend-link .fl-label {
            width: 100%;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fbbf24;
            margin-bottom: 0.5rem;
            letter-spacing: 1px;
        }
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 1.5rem 0;
            text-align: center;
            font-size: 0.85rem;
        }
        .site-footer .copyright {
            color: #cbd5e1;
        }
        .site-footer a {
            color: #fbbf24;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .article-content {
                order: 1;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1e293b;
                border-radius: 16px;
                padding: 0.8rem;
                margin-top: 0.5rem;
                gap: 0.2rem;
            }
            .nav-list.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .article-content {
                padding: 1.5rem;
            }
            .sidebar {
                padding: 1.2rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form .form-row input {
                width: 100%;
            }
            .star-rating {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .article-content {
                padding: 1rem;
                border-radius: 12px;
            }
            .sidebar {
                padding: 1rem;
                border-radius: 12px;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 0.7rem;
            }
            .featured-image-wrap {
                border-radius: 10px;
            }
        }
        @media print {
            .site-header,
            .breadcrumb,
            .sidebar,
            .search-form,
            .comment-section,
            .rating-section,
            friend-link,
            .site-footer {
                display: none !important;
            }
            .main-grid {
                display: block;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }
        .skip-link {
            position: absolute;
            top: -100px;
            left: 0;
            background: #f59e0b;
            color: #0f172a;
            padding: 0.5rem 1rem;
            z-index: 9999;
            font-weight: 600;
            border-radius: 0 0 8px 0;
            transition: top 0.3s;
        }
        .skip-link:focus {
            top: 0;
        }