* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #00979D;
            --primary-dark: #007177;
            --accent: #FF6B6B;
            --dark: #212529;
            --light: #f8f9fa;
            --gray: #6c757d;
            --white: #ffffff;
            --border: #e9ecef;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
        }
        body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: var(--dark); background: var(--white); line-height: 1.75; }
        a { color: var(--primary); text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: var(--primary-dark); text-decoration: underline; }
        img { max-width: 100%; height: auto; }
        .site-header { background: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.06); position: sticky; top: 0; z-index: 1000; }
        .header-inner { max-width: 1280px; margin: 0 auto; padding: 16px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
        .my-logo { font-size: 28px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; display: flex; align-items: center; gap: 8px; }
        .my-logo i { font-size: 24px; }
        .my-logo span { color: var(--accent); }
        .nav-links { display: flex; list-style: none; gap: 24px; flex-wrap: wrap; }
        .nav-links a { font-weight: 500; color: var(--dark); padding: 6px 12px; border-radius: 6px; }
        .nav-links a:hover { color: var(--primary); background: rgba(0,151,157,0.08); }
        .hamburger { display: none; background: none; border: none; font-size: 24px; color: var(--primary); cursor: pointer; }
        .breadcrumb { max-width: 1280px; margin: 20px auto 0; padding: 0 24px; font-size: 14px; color: var(--gray); }
        .breadcrumb a { color: var(--gray); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .separator { margin: 0 8px; }
        .container { max-width: 1280px; margin: 0 auto; padding: 32px 24px; display: grid; grid-template-columns: 1fr 340px; gap: 40px; }
        .main-content { min-width: 0; }
        .sidebar { position: sticky; top: 100px; align-self: start; }
        .article-header { margin-bottom: 32px; }
        .article-header h1 { font-size: 40px; line-height: 1.2; font-weight: 800; color: var(--dark); margin-bottom: 12px; }
        .article-meta { color: var(--gray); font-size: 14px; display: flex; gap: 16px; flex-wrap: wrap; }
        .article-meta i { margin-right: 4px; }
        .featured-image { border-radius: var(--radius); overflow: hidden; margin: 24px 0; box-shadow: var(--shadow); }
        .featured-image img { width: 100%; display: block; }
        .prose h2 { font-size: 30px; font-weight: 700; margin: 48px 0 16px; border-left: 4px solid var(--primary); padding-left: 16px; color: var(--dark); }
        .prose h3 { font-size: 22px; font-weight: 600; margin: 28px 0 12px; color: var(--dark); }
        .prose h4 { font-size: 18px; font-weight: 600; margin: 20px 0 10px; color: var(--dark); }
        .prose p { margin-bottom: 16px; text-align: justify; }
        .prose ul, .prose ol { margin: 0 0 20px 24px; }
        .prose li { margin-bottom: 8px; }
        .prose blockquote { border-left: 4px solid var(--accent); padding: 12px 20px; background: #fff5f5; border-radius: 0 8px 8px 0; margin: 20px 0; font-style: italic; }
        .info-box { background: #e8f7f8; border-radius: var(--radius); padding: 20px; margin: 24px 0; border-left: 4px solid var(--primary); }
        .info-box i { color: var(--primary); margin-right: 8px; }
        .highlight-box { background: #fffbea; border-radius: var(--radius); padding: 20px; margin: 24px 0; border-left: 4px solid #ffc107; }
        .content-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 15px; }
        .content-table th { background: var(--primary); color: var(--white); padding: 12px; text-align: left; }
        .content-table td { padding: 12px; border-bottom: 1px solid var(--border); }
        .content-table tr:nth-child(even) { background: #f8f9fa; }
        .widget { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow); }
        .widget-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .widget-title i { color: var(--primary); }
        .widget ul { list-style: none; }
        .widget ul li { padding: 6px 0; border-bottom: 1px solid #f0f0f0; }
        .widget ul li:last-child { border-bottom: none; }
        .search-form { display: flex; gap: 8px; }
        .search-form input { flex: 1; padding: 10px 14px; border: 2px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; transition: border 0.3s; }
        .search-form input:focus { border-color: var(--primary); }
        .search-form button { background: var(--primary); color: var(--white); border: none; border-radius: 8px; padding: 10px 16px; cursor: pointer; font-size: 16px; transition: background 0.3s; }
        .search-form button:hover { background: var(--primary-dark); }
        .form-group { margin-bottom: 16px; }
        .form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
        .form-group input, .form-group textarea, .form-group select { width: 100%; padding: 10px 14px; border: 2px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit; outline: none; transition: border 0.3s; }
        .form-group input:focus, .form-group textarea:focus { border-color: var(--primary); }
        .form-group textarea { min-height: 80px; resize: vertical; }
        .btn-primary { background: var(--primary); color: var(--white); border: none; border-radius: 8px; padding: 12px 24px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background 0.3s; }
        .btn-primary:hover { background: var(--primary-dark); }
        .rating-stars { display: flex; gap: 4px; font-size: 28px; color: #ddd; cursor: pointer; }
        .rating-stars i.active { color: #ffc107; }
        .site-footer { background: #212529; color: #adb5bd; margin-top: 48px; }
        .footer-inner { max-width: 1280px; margin: 0 auto; padding: 48px 24px 24px; }
        .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-bottom: 32px; }
        .footer-grid h4 { color: var(--white); font-size: 16px; margin-bottom: 16px; }
        .footer-grid a { color: #adb5bd; display: block; padding: 4px 0; font-size: 14px; }
        .footer-grid a:hover { color: var(--primary); }
        .friend-link-section { border-top: 1px solid #343a40; padding: 24px 0; margin-top: 24px; }
        .friend-link-section h4 { color: var(--white); margin-bottom: 12px; }
        .copyright { text-align: center; padding: 20px 0 0; border-top: 1px solid #343a40; font-size: 14px; color: #6c757d; }
        @media (max-width: 992px) {
            .container { grid-template-columns: 1fr; }
            .sidebar { position: static; }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .header-inner { padding: 12px 16px; }
            .nav-links { display: none; width: 100%; flex-direction: column; gap: 4px; padding: 12px 0; }
            .nav-links.active { display: flex; }
            .hamburger { display: block; }
            .article-header h1 { font-size: 28px; }
            .prose h2 { font-size: 24px; }
            .breadcrumb { padding: 0 16px; }
            .container { padding: 24px 16px; }
        }