:root{--primary-color: #2E7D32;--primary-hover: #1B5E20;--primary-rgb: 46, 125, 50;--bg-color: #ffffff;--text-color: #333333;--section-bg: #f5f5f5;--border-color: #e0e0e0}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6}.container{max-width:900px;margin:0 auto;padding:24px}header{text-align:center;margin-bottom:32px}header h1{margin:0 0 8px;font-size:2.5rem;font-weight:700;color:var(--primary-color)}header p{margin:0;color:#666;font-size:1.1rem}.ad-space{width:728px;height:90px;background-color:#eee;margin:24px auto;display:flex;align-items:center;justify-content:center;color:#888;font-size:14px;border:1px dashed #ccc}@media(max-width:768px){.ad-space{width:100%;height:auto;min-height:90px}}.options-panel{background:var(--section-bg);padding:16px;border-radius:8px;margin-top:24px;margin-bottom:24px;display:flex;gap:24px;align-items:center;flex-wrap:wrap}.options-panel .option{display:flex;align-items:center;gap:8px}.options-panel .option label{font-weight:500;color:#444;cursor:pointer}.options-panel .option select{padding:6px 12px;border-radius:4px;border:1px solid #ccc;font-size:14px;background:#fff}.error-message{background-color:#ffebee;color:#c62828;padding:12px;border-radius:8px;margin-top:16px;text-align:center;border:1px solid #ffcdd2}.seo-content{margin-top:48px;color:#444}.seo-content .features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:48px}.seo-content .features-grid .feature-card{background:#fff;padding:24px;border-radius:8px;border:1px solid var(--border-color);box-shadow:0 2px 4px #0000000d}.seo-content .features-grid .feature-card h3{color:var(--primary-color);margin-top:0;margin-bottom:12px;font-size:1.2rem}.seo-content .features-grid .feature-card p{margin:0;font-size:.95rem;color:#666}.seo-content .info-section{margin-bottom:40px}.seo-content .info-section h2{color:#333;font-size:1.5rem;margin-bottom:16px;border-bottom:2px solid #eee;padding-bottom:8px}.seo-content .info-section p{margin-bottom:16px}.seo-content .info-section ol{margin-left:20px}.seo-content .info-section ol li{margin-bottom:12px}.seo-content .info-section .faq-item{margin-bottom:24px}.seo-content .info-section .faq-item h3{font-size:1.1rem;font-weight:600;margin-bottom:8px;color:#333}.seo-content .info-section .faq-item p{color:#555}footer{text-align:center;font-size:.9rem;color:#888;border-top:1px solid #eee;margin-top:48px;padding-top:24px;padding-bottom:24px}footer .links{margin-top:8px}footer .links a{color:#666;text-decoration:none;margin:0 8px}footer .links a:hover{color:var(--primary-color);text-decoration:underline}