:root{--primary-color:#2563eb;--bg-color:#f8fafc;--text-color:#1e293b;--danger-color:#ef4444;--success-color:#10b981;--panel-bg:#fff;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--border-radius:8px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.scenario-layout{background:linear-gradient(#f1f5f9 0%,#e2e8f0 100%);flex-direction:column;align-items:center;min-height:100vh;padding:2.5rem 1rem;display:flex}.scenario-header{text-align:center;margin-bottom:2rem}.scenario-header h1{color:var(--text-color);font-size:1.8rem}.scenario-main{flex-direction:column;gap:1.5rem;width:100%;max-width:950px;display:flex}.story-panel{background:var(--panel-bg);border-radius:var(--border-radius);box-shadow:var(--shadow);border-left:4px solid var(--primary-color);padding:1.5rem}.decision-panel{flex-direction:column;align-items:center;gap:1rem;width:100%;display:flex}.decision-btn{border-radius:var(--border-radius);cursor:pointer;width:100%;max-width:450px;box-shadow:var(--shadow);background:var(--panel-bg);color:var(--text-color);text-align:center;border:1px solid #e2e8f0;padding:1rem 1.5rem;font-size:1rem;font-weight:500;transition:all .2s ease-in-out}.decision-btn:hover{border-color:#cbd5e1;transform:translateY(-2px);box-shadow:0 10px 15px -3px #0000001a}.app-container{background-color:#f8fafc;border:1px solid #cbd5e1;border-radius:12px;width:100%;margin:0 auto;display:flex;overflow:hidden;box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a}.app-sidebar{background-color:#f1f5f9;border-right:1px solid #e2e8f0;flex-direction:column;flex-shrink:0;width:220px;padding:1.5rem 0;display:flex}@media (width<=768px){.app-sidebar{display:none}.app-container{flex-direction:column}}.app-sidebar-item{color:#475569;cursor:default;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:500;display:flex}.app-sidebar-item.active{color:var(--primary-color);border-right:3px solid var(--primary-color);background-color:#e2e8f0;font-weight:600}.app-main{background-color:#fff;flex-direction:column;flex:1;display:flex}.app-header{background-color:#fff;border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;padding:1rem 1.5rem;display:flex}.app-header-title{color:#1e293b;font-size:1rem;font-weight:600}.app-content{background-color:#f8fafc;flex-direction:column;flex:1;align-items:center;padding:2rem;display:flex;overflow-y:auto}.email-mockup{background:var(--panel-bg);border-radius:var(--border-radius);border:1px solid #e2e8f0;width:100%;max-width:600px;font-size:.95rem;overflow:hidden;box-shadow:0 4px 6px -1px #0000000d}.email-header{background:#f1f5f9;border-bottom:1px solid #e2e8f0;padding:1rem}.email-label{color:#64748b;width:60px;display:inline-block}.email-sender{margin-bottom:.5rem}.email-body{min-height:200px;color:var(--text-color);padding:1.5rem}.email-injected-area{margin-top:1.5rem}.email-link{color:var(--primary-color);cursor:pointer;text-decoration:underline}