@import"https://fonts.googleapis.com/css2?family=ZCOOL+XiaoWei&family=ZCOOL+QingKe+HuangYou&display=swap";:root{--bg: #0F0808;--surface: #1F1010;--primary: #C13030;--primary-dark: #9A2424;--accent: #D4AF37;--text: #F5E6D3;--text-muted: #C4A574;--border: #2A1818;--success: #5C8A4B;--warning: #D4AF37;--danger: #C13030;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04)}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:ZCOOL XiaoWei,ZCOOL QingKe HuangYou,KaiTi,楷体,STKaiti,STZhongsong,serif;background:radial-gradient(ellipse at 30% 20%,#C1303011 0%,transparent 50%),radial-gradient(ellipse at 70% 80%,#D4AF3711 0%,transparent 50%),var(--bg);min-height:100vh}.bg-texture{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;background-image:radial-gradient(circle,rgba(255,255,255,.02) 1px,transparent 1px);background-size:3px 3px}.bg-scroll{position:fixed;bottom:0;right:0;height:100vh;opacity:.08;z-index:0;pointer-events:none;object-fit:cover}.container{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:12px 16px 100px;min-height:100vh}.header-bar{display:flex;align-items:center;gap:10px;padding:12px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;font-family:ZCOOL QingKe HuangYou,serif;font-size:20px;color:var(--accent);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.cloud-badge{font-size:12px;color:var(--text-muted);background:var(--border);padding:2px 10px;border-radius:20px;margin-left:auto;font-family:serif}.header-score{margin-left:auto;font-size:16px;color:var(--accent)}.header-btn{background:var(--primary);color:#fff;border:none;padding:6px 16px;border-radius:20px;cursor:pointer;font-size:13px;font-family:inherit}.start-card{max-width:600px;margin:60px auto;text-align:center;padding:48px 32px;background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:0 8px 32px #00000080;position:relative}.start-icon{margin-bottom:20px}.title{font-size:36px;color:var(--accent);font-family:ZCOOL QingKe HuangYou,serif;margin-bottom:12px}.subtitle{color:var(--text-muted);font-size:18px;margin-bottom:24px}.example-questions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}.eq-tag{padding:8px 18px;background:var(--border);border-radius:20px;color:var(--text-muted);cursor:pointer;font-size:14px;transition:.2s}.eq-tag:hover{background:var(--primary);color:#fff}.primary-btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;border:none;padding:14px 36px;border-radius:30px;font-size:18px;cursor:pointer;font-family:inherit;box-shadow:0 4px 16px #c130304d}.secondary-btn{display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid var(--border);color:var(--text);padding:12px 28px;border-radius:30px;font-size:15px;cursor:pointer;font-family:inherit;margin-top:12px}.main-layout{display:grid;grid-template-columns:1fr 300px;gap:16px}.chat-area{display:flex;flex-direction:column;gap:12px}.era-img{width:100%;height:180px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--border)}.era-img-placeholder{width:100%;height:180px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--text-muted)}.answer-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;position:relative;min-height:160px}.era-badge{position:absolute;top:10px;right:12px;background:var(--primary);color:#fff;padding:2px 14px;border-radius:12px;font-size:12px}.q-title{font-size:22px;color:var(--accent);margin-bottom:12px;padding-right:80px;font-family:ZCOOL QingKe HuangYou,serif}.answer-content{position:relative}.event-img{float:right;width:120px;height:120px;object-fit:cover;border-radius:8px;margin:0 0 12px 12px;border:1px solid var(--border)}.a-text{font-size:17px;line-height:1.7;color:var(--text);clear:both}.feedback{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:6px 18px;border-radius:20px;font-size:14px}.feedback.correct{background:var(--success);color:#fff}.feedback.wrong{background:var(--danger);color:#fff}.input-row{display:flex;gap:8px}.qa-input{flex:1;padding:14px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:16px;font-family:inherit;outline:none;transition:.2s}.qa-input:focus{border-color:var(--accent)}.send-btn{background:var(--accent);color:var(--bg);border:none;width:50px;border-radius:var(--radius);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}.send-btn:disabled{opacity:.5;cursor:not-allowed}.chips-row{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:6px 14px;background:var(--surface);border:1px solid var(--border);border-radius:16px;color:var(--text-muted);font-size:13px;cursor:pointer;transition:.2s}.chip:hover{border-color:var(--accent);color:var(--accent)}.loading-dots{color:var(--text-muted);font-size:16px;margin-top:12px}.loading-dots span{animation:blink 1s infinite}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,to{opacity:0}50%{opacity:1}}.sidebar{display:flex;flex-direction:column;gap:12px}.sidebar-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.sidebar-section h4{display:flex;align-items:center;gap:6px;color:var(--accent);font-size:15px;margin-bottom:10px;font-family:ZCOOL QingKe HuangYou,serif}.era-grid{display:flex;flex-wrap:wrap;gap:6px}.era-chip{padding:5px 12px;background:var(--bg);border:1px solid var(--border);border-radius:14px;font-size:13px;color:var(--text-muted);cursor:pointer;transition:.2s}.era-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}.era-chip:hover{border-color:var(--accent)}.hist-section{flex:1;overflow:hidden;display:flex;flex-direction:column}.hist-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.icon-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:6px;transition:.2s}.icon-btn:hover{color:var(--danger);background:var(--border)}.hist-list{flex:1;overflow-y:auto;max-height:400px}.hist-item{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;border-radius:8px;cursor:pointer;transition:.15s;margin-bottom:2px}.hist-item:hover{background:var(--bg)}.hist-q{font-size:13px;color:var(--text-muted)}.hist-arrow{color:var(--border);flex-shrink:0}.empty-hint{color:var(--text-muted);font-size:13px;text-align:center;padding:16px}.result-card{max-width:500px;margin:60px auto;text-align:center;padding:48px 32px;background:var(--surface);border:1px solid var(--border);border-radius:20px}.result-icon{margin-bottom:16px}.result-card h2{font-size:28px;color:var(--accent);font-family:ZCOOL QingKe HuangYou,serif;margin-bottom:16px}.score-display{margin:16px 0}.score-num{font-size:64px;color:var(--accent);font-weight:700}.score-total{font-size:32px;color:var(--text-muted)}.pct-bar{height:8px;background:var(--border);border-radius:4px;margin:12px 0;overflow:hidden}.pct-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:.5s}.pct-text{color:var(--text-muted);font-size:16px}.result-message{font-size:18px;color:var(--accent);margin:16px 0}.history-preview{text-align:left;background:var(--bg);border-radius:var(--radius);padding:12px 16px;margin:16px 0}.history-preview h4{display:flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;margin-bottom:6px}.history-preview ul{list-style:none}.history-preview li{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted);padding:4px 0}.result-btns{display:flex;flex-direction:column;gap:10px;align-items:center;margin-top:20px}@media (max-width:768px){.main-layout{grid-template-columns:1fr}.sidebar{order:-1}.era-img{height:120px}.event-img{width:80px;height:80px}.title{font-size:26px}}