:root{--main-bg:#f4f6f8;--panel-bg:#fff;--border-color:#e2e8f0;--text-primary:#1e293b;--text-secondary:#64748b;--theme-color:#0ea5e9;--theme-color-hover:#0284c7;--theme-color-light:#e0f2fe;--user-msg-bg:#e0f2fe;--bot-msg-bg:#f8fafc;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}body{font-family:var(--font-sans);background-color:var(--main-bg);color:var(--text-primary);margin:0}.app-wrap{min-height:100svh}.container{box-sizing:border-box;gap:20px;max-width:1400px;min-height:100svh;margin:0 auto;padding:20px;display:flex}.left-panel,.right-panel{flex-direction:column;height:calc(100svh - 40px);display:flex}.left-panel{flex-shrink:0;gap:20px;width:300px}.right-panel{flex-grow:1}.robot-container,.features-panel,.chat-main{background-color:var(--panel-bg);border:1px solid var(--border-color);border-radius:16px;box-shadow:0 4px 12px #0000000d}.robot-container{text-align:center;padding:24px}.robot-image{width:120px;height:auto;margin-bottom:16px}.robot-name{color:var(--theme-color);margin:0 0 4px;font-size:20px;font-weight:600}.robot-description{color:var(--text-secondary);margin:0;font-size:14px}.features-panel{flex-grow:1;padding:16px}.features-header{border-bottom:1px solid var(--border-color);margin-bottom:8px;padding:0 8px 12px;font-size:16px;font-weight:600}.feature-item{cursor:pointer;border-radius:8px;align-items:center;padding:12px 8px;transition:background-color .2s;display:flex}.feature-item:hover{background-color:#f9fafb}.feature-icon{width:24px;height:24px;margin-right:12px}.feature-icon img{width:100%;height:100%}.feature-text{font-size:15px}.chat-main{flex-direction:column;height:100%;display:flex}.chat-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.chat-title{font-size:20px;font-weight:600}.chat-status{color:var(--text-secondary);align-items:center;gap:8px;font-size:14px;display:flex}.status-dot{background-color:#22c55e;border-radius:50%;width:8px;height:8px;animation:1.5s infinite statusPulse}@keyframes statusPulse{0%,to{opacity:1}50%{opacity:.5}}.chat-messages{flex-grow:1;padding:24px;overflow-y:auto}.welcome-wrapper{flex-direction:column;gap:24px;display:flex}.welcome-container{background-color:var(--theme-color-light);border-radius:12px;justify-content:space-between;align-items:center;padding:24px;display:flex}.welcome-text h3{color:var(--theme-color);margin:0 0 8px;font-size:22px;font-weight:600}.welcome-text p{color:var(--text-secondary);margin:0}.welcome-image{width:80px;height:auto}.faq-container{grid-template-columns:1fr 1fr;gap:20px;display:grid}.faq-column{background-color:#f9fafb;border-radius:12px;padding:20px}.faq-header{align-items:center;gap:10px;margin-bottom:16px;display:flex}.faq-header h3{margin:0;font-size:16px;font-weight:600}.faq-icon{font-size:18px}.faq-items{flex-direction:column;gap:10px;display:flex}.faq-item{background-color:var(--panel-bg);cursor:pointer;border-radius:8px;justify-content:space-between;align-items:center;padding:12px;transition:box-shadow .2s,transform .2s;display:flex}.faq-item:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0000000d}.faq-question{font-size:14px}.faq-arrow{color:var(--text-secondary);transition:transform .2s}.faq-item:hover .faq-arrow{transform:translate(2px)}.message-container{flex-direction:column;gap:16px;display:flex}.message-row{gap:12px;display:flex}.row-user{justify-content:flex-end}.avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-weight:500;display:flex}.avatar-bot{background-color:var(--theme-color-light);color:var(--theme-color)}.avatar-user{color:#4b5563;background-color:#e5e7eb}.user-message,.bot-message{border-radius:12px;max-width:80%;padding:12px 16px;line-height:1.6}.user-message{background-color:var(--user-msg-bg);border-top-right-radius:4px}.bot-message{background-color:var(--bot-msg-bg);border-top-left-radius:4px}.thinking,.error{color:var(--text-secondary);font-style:italic}.error{color:#ef4444}.chat-input-container{border-top:1px solid var(--border-color);align-items:flex-end;gap:12px;padding:16px 24px;display:flex}.chat-input{border:1px solid var(--border-color);resize:none;box-sizing:border-box;background-color:#f9fafb;border-radius:12px;flex-grow:1;min-height:48px;max-height:150px;padding:12px 16px;font-family:inherit;font-size:15px;line-height:22px;transition:border-color .2s,box-shadow .2s}.chat-input:focus{border-color:var(--theme-color);outline:none;box-shadow:0 0 0 3px #0ea5e926}.chat-send-btn{background:linear-gradient(135deg, var(--theme-color) 0%, var(--theme-color-hover) 100%);color:#fff;cursor:pointer;border:none;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;transition:all .2s;display:flex;box-shadow:0 4px 10px #0ea5e94d}.chat-send-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 14px #0ea5e966}.chat-send-btn:active:not(:disabled){transform:translateY(0)}.chat-send-btn:disabled{opacity:.6;cursor:not-allowed}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:1s linear infinite spinnerSpin}@keyframes spinnerSpin{to{transform:rotate(360deg)}}@media (width<=1024px){.container{flex-direction:column;gap:10px;height:100svh;padding:10px}.left-panel{display:none}.right-panel{height:100%}.chat-main{box-shadow:none;border:none;border-radius:0}}