* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f4f7f9;
            color: #1e293b;
            line-height: 1.7;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #2d4a6e 100%);
            padding: 20px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-flex {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            text-decoration: none;
            background: linear-gradient(45deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .my-logo span {
            font-size: .8rem;
            display: block;
            color: #94a3b8;
            font-weight: 400;
            letter-spacing: 2px;
            text-transform: lowercase;
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            font-size: .95rem;
            transition: color .3s;
            padding: .5rem .2rem;
        }
        .nav-links a:hover {
            color: #fbbf24;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
        }
        .nav-links.open {
            display: flex;
            flex-direction: column;
            width: 100%;
            background: #0f172a;
            padding: 1rem;
            border-radius: 8px;
            margin-top: 10px;
        }
        @media (max-width:768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
        }
        .breadcrumb {
            padding: 14px 0;
            font-size: .85rem;
            background: #fff;
            border-bottom: 1px solid #e2e8f0;
        }
        .breadcrumb a {
            color: #3b82f6;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            margin: 0 6px;
            color: #94a3b8;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (min-width:992px) {
            .main-grid {
                display: grid;
                grid-template-columns: 1fr 280px;
                gap: 2rem;
            }
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .04);
        }
        .article-body h1 {
            font-size: 2.2rem;
            color: #0f172a;
            margin-bottom: .6rem;
            line-height: 1.3;
            border-left: 5px solid #f59e0b;
            padding-left: 1rem;
        }
        .article-body .meta {
            color: #64748b;
            font-size: .85rem;
            margin-bottom: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: .8rem;
        }
        .article-body .meta i {
            margin-right: 3px;
        }
        .article-body h2 {
            font-size: 1.6rem;
            color: #1e3a5f;
            margin: 2rem 0 1rem;
            padding-bottom: .5rem;
            border-bottom: 2px solid #e2e8f0;
            position: relative;
        }
        .article-body h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background: #f59e0b;
        }
        .article-body h3 {
            font-size: 1.25rem;
            color: #334155;
            margin: 1.5rem 0 .8rem;
        }
        .article-body h4 {
            font-size: 1.05rem;
            color: #475569;
            margin: 1.2rem 0 .5rem;
        }
        .article-body p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .08);
        }
        .highlight-box {
            background: #fef9c3;
            border-left: 4px solid #f59e0b;
            padding: 1rem 1.2rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .tip-box {
            background: #ecfdf5;
            border-left: 4px solid #10b981;
            padding: 1rem;
            border-radius: 0 8px 8px 0;
            margin: 1rem 0;
        }
        .warning-box {
            background: #fef2f2;
            border-left: 4px solid #ef4444;
            padding: 1rem;
            border-radius: 0 8px 8px 0;
            margin: 1rem 0;
        }
        .section-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: .9rem;
        }
        .section-table th,
        .section-table td {
            border: 1px solid #e2e8f0;
            padding: 10px 14px;
            text-align: left;
        }
        .section-table th {
            background: #f1f5f9;
            font-weight: 700;
        }
        .section-table tr:hover {
            background: #f8fafc;
        }
        .related-links {
            background: #f8fafc;
            border-radius: 12px;
            padding: 1.2rem;
            margin: 1.5rem 0;
        }
        .related-links a {
            display: block;
            color: #2563eb;
            text-decoration: none;
            padding: 4px 0;
            font-size: .95rem;
        }
        .related-links a:hover {
            text-decoration: underline;
            color: #1d4ed8;
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .04);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.1rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: .5rem;
            margin-bottom: 1rem;
            color: #0f172a;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar ul li {
            margin-bottom: .5rem;
        }
        .sidebar ul li a {
            color: #3b82f6;
            text-decoration: none;
            font-size: .9rem;
            display: block;
            padding: 6px 8px;
            border-radius: 6px;
            transition: background .2s;
        }
        .sidebar ul li a:hover {
            background: #eff6ff;
            text-decoration: none;
        }
        .search-form {
            display: flex;
            gap: .5rem;
            margin: 1.5rem 0;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 50px;
            font-size: .95rem;
        }
        .search-form button {
            background: #0f172a;
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 0 20px;
            cursor: pointer;
            transition: background .3s;
        }
        .search-form button:hover {
            background: #1e3a5f;
        }
        .comment-form,
        .score-form {
            background: #f8fafc;
            border-radius: 12px;
            padding: 1.5rem;
            margin: 1.5rem 0;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 120px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            padding: 12px;
            font-size: .9rem;
            resize: vertical;
            font-family: inherit;
        }
        .comment-form input,
        .score-form input,
        .score-form select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: .9rem;
            margin-bottom: 10px;
        }
        .form-btn {
            background: #0f172a;
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 50px;
            font-size: .95rem;
            cursor: pointer;
            transition: background .3s;
            font-weight: 600;
        }
        .form-btn:hover {
            background: #f59e0b;
            color: #0f172a;
        }
        .score-stars {
            display: flex;
            gap: .3rem;
            font-size: 1.4rem;
            color: #f59e0b;
            margin-bottom: 10px;
        }
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .site-footer a {
            color: #e2e8f0;
            text-decoration: none;
        }
        .site-footer a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            padding: 1rem;
            background: #1e293b;
            border-radius: 8px;
            margin-bottom: 1rem;
            color: #e2e8f0;
            font-size: .9rem;
            line-height: 1.8;
        }
        friend-link a {
            margin: 0 8px;
            color: #60a5fa;
        }
        .copyright {
            text-align: center;
            font-size: .85rem;
            padding-top: 1.5rem;
            border-top: 1px solid #1e293b;
        }
        @media (max-width:600px) {
            .article-body {
                padding: 1rem;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
        }
        .image-caption {
            font-size: .85rem;
            color: #64748b;
            text-align: center;
            margin-top: -1rem;
            margin-bottom: 1.5rem;
        }