:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;color:#1a1a1a;background:#f7f5f0;line-height:1.55}a{color:#1f5c3d}header.site{background:#fff;border-bottom:1px solid #e3ddd2;padding:14px 20px;display:flex;gap:16px;align-items:center;flex-wrap:wrap}header.site strong{font-size:18px}header.site nav{margin-left:auto;display:flex;gap:14px;flex-wrap:wrap}main{max-width:960px;margin:0 auto;padding:28px 20px 60px}.card{background:#fff;border:1px solid #e3ddd2;border-radius:12px;padding:20px;margin:16px 0}.button,button{background:#1f5c3d;color:#fff;border:0;border-radius:8px;padding:10px 16px;font-size:15px;cursor:pointer;text-decoration:none;display:inline-block}.button.secondary,button.secondary{background:#fff;color:#1f5c3d;border:1px solid #1f5c3d}button:disabled{opacity:.55;cursor:default}input,select,textarea{width:100%;padding:9px 10px;border:1px solid #c9c2b4;border-radius:8px;font-size:15px;margin:4px 0 12px}label{font-weight:600;font-size:14px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:16px;gap:16px}.small{font-size:14px;color:#555}.notice{background:#fff7e0;border:1px solid #e6c87a;border-radius:8px;padding:12px 14px;margin:16px 0}.step{border-left:4px solid #7c6bd9;padding:10px 14px;margin:10px 0;background:#fff;border-radius:0 8px 8px 0}.step.tool{border-left-color:#dd7f2e}.step.ai{border-left-color:#c73e2c}footer.site{text-align:center;color:#666;font-size:14px;padding:24px}