.detective-app{min-height:100vh;background:radial-gradient(circle at center,#111827,#030712);color:#f3f4f6;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;display:flex;flex-direction:column}.detective-header{display:flex;justify-content:space-between;align-items:center;padding:16px 32px;background-color:#111827cc;border-bottom:1px solid #1f2937;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-logo{display:flex;align-items:center;gap:12px}.icon-glow{color:#3b82f6;filter:drop-shadow(0 0 8px rgba(59,130,246,.6))}.header-logo h1{font-size:20px;font-weight:800;letter-spacing:1px;background:linear-gradient(to right,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.subtitle{font-size:10px;color:#9ca3af;display:block;font-weight:400;letter-spacing:2px}.header-timer{display:flex;align-items:center;gap:8px;background-color:#f59e0b1a;border:1px solid rgba(245,158,11,.3);padding:6px 14px;border-radius:20px;font-family:monospace;font-size:14px;color:#f59e0b}.btn-back{background-color:#1f2937;color:#e5e7eb;border:1px solid #374151;padding:8px 16px;border-radius:8px;cursor:pointer;transition:all .2s}.btn-back:hover{background-color:#374151;border-color:#4b5563}.detective-main{flex:1;padding:32px;max-width:1280px;margin:0 auto;width:100%;box-sizing:border-box}.welcome-banner{text-align:center;margin-bottom:40px}.welcome-banner h2{font-size:28px;font-weight:700;margin:12px 0 8px;color:#f9fafb}.welcome-banner p{color:#9ca3af;font-size:16px}.level-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}.level-card{background-color:#111827;border:1px solid #1f2937;border-radius:16px;padding:24px;position:relative;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1)}.level-card.unlocked{cursor:pointer}.level-card.unlocked:hover{transform:translateY(-4px);border-color:#3b82f6;box-shadow:0 10px 20px -10px #3b82f64d}.level-card.completed{border-color:#10b981}.level-badge{display:flex;justify-content:space-between;margin-bottom:16px}.badge-diff{font-size:11px;font-weight:600;padding:2px 8px;border-radius:12px}.badge-diff.简单{background-color:#10b98126;color:#10b981}.badge-diff.中等{background-color:#f59e0b26;color:#f59e0b}.badge-diff.困难{background-color:#ef444426;color:#ef4444}.badge-cat{font-size:11px;color:#9ca3af;background-color:#1f2937;padding:2px 8px;border-radius:12px}.level-title{font-size:18px;font-weight:700;color:#f3f4f6;margin-bottom:24px}.level-status{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #1f2937;padding-top:16px}.status-done,.status-unlocked,.status-locked{display:flex;align-items:center;gap:6px;font-size:14px}.status-done{color:#10b981}.status-unlocked{color:#f59e0b}.status-locked{color:#6b7280}.stars-row{display:flex;gap:2px}.star-active{color:#fbbf24;fill:#fbbf24}.star-inactive{color:#4b5563}.lock-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background-color:#03071299;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;color:#4b5563}.gameplay-container{display:grid;grid-template-columns:1.2fr .8fr;gap:32px;height:calc(100vh - 160px)}.game-left,.game-right{display:flex;flex-direction:column;gap:24px;overflow-y:auto}.case-card{background:linear-gradient(135deg,#1e1b4b,#111827);border:1px solid #312e81;border-radius:16px;padding:24px}.case-tag{color:#818cf8;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase}.case-title{font-size:22px;font-weight:800;color:#fff;margin:4px 0 12px}.case-description{color:#d1d5db;line-height:1.6;font-size:15px}.chat-section{flex:1;background-color:#111827;border:1px solid #1f2937;border-radius:16px;display:flex;flex-direction:column;overflow:hidden;min-height:350px}.chat-header{display:flex;align-items:center;gap:8px;padding:16px;border-bottom:1px solid #1f2937;color:#60a5fa;font-weight:600}.chat-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.chat-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:#6b7280;text-align:center;padding:20px}.message-pair{display:flex;flex-direction:column;gap:8px}.msg-user,.msg-ai{display:flex;gap:12px;max-width:85%}.msg-user{align-self:flex-end;flex-direction:row-reverse}.avatar{font-size:11px;font-weight:700;padding:4px 8px;border-radius:6px;height:fit-content}.msg-user .avatar{background-color:#2563eb;color:#fff}.msg-ai .avatar{background-color:#4b5563;color:#fff}.bubble{padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.5}.msg-user .bubble{background-color:#1d4ed8;color:#fff;border-top-right-radius:2px}.msg-ai .bubble{background-color:#1f2937;color:#e5e7eb;border-top-left-radius:2px;border:1px solid #374151}.msg-ai.loading .bubble{color:#9ca3af;font-style:italic}.chat-input-form{display:flex;padding:12px;background-color:#0b0f19;border-top:1px solid #1f2937;gap:10px}.chat-input-form input{flex:1;background-color:#111827;border:1px solid #374151;border-radius:8px;padding:10px 16px;color:#fff;outline:none}.chat-input-form input:focus{border-color:#3b82f6}.chat-input-form button{background-color:#2563eb;color:#fff;border:none;padding:0 16px;border-radius:8px;cursor:pointer;transition:background-color .2s}.chat-input-form button:hover:not(:disabled){background-color:#1d4ed8}.chat-input-form button:disabled{background-color:#1f2937;color:#4b5563;cursor:not-allowed}.tools-panel,.hints-panel,.submit-panel{background-color:#111827;border:1px solid #1f2937;border-radius:16px;padding:20px}.panel-title{font-size:15px;font-weight:700;margin-bottom:12px;display:block}.tools-buttons{display:flex;gap:12px}.btn-tool{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;background-color:#1f2937;border:1px solid #374151;color:#d1d5db;padding:8px;border-radius:8px;cursor:pointer;font-size:13px;transition:all .2s}.btn-tool:hover:not(:disabled){background-color:#374151;color:#fff}.btn-tool:disabled{opacity:.5;cursor:not-allowed}.hints-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.hints-count{font-size:12px;color:#f59e0b;font-weight:600}.btn-hint{width:100%;background-color:#f59e0b1a;border:1px solid rgba(245,158,11,.4);color:#f59e0b;padding:10px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s}.btn-hint:hover:not(:disabled){background-color:#f59e0b33}.btn-hint:disabled{border-color:#1f2937;color:#4b5563;background-color:#111827;cursor:not-allowed}.hint-text-box{margin-top:12px;background-color:#1c1917;border-left:4px solid #ea580c;padding:12px;border-radius:4px 8px 8px 4px;display:flex;gap:8px;font-size:13px;color:#fdba74;line-height:1.4}.submit-panel{border-color:#eab3084d}.submit-panel textarea{width:100%;background-color:#0b0f19;border:1px solid #374151;border-radius:8px;padding:12px;color:#fff;font-size:14px;resize:none;outline:none;box-sizing:border-box}.submit-panel textarea:focus{border-color:#eab308}.btn-submit-theory{width:100%;background:linear-gradient(to right,#eab308,#ca8a04);color:#0f172a;border:none;padding:12px;border-radius:8px;font-weight:700;cursor:pointer;margin-top:12px;transition:opacity .2s}.btn-submit-theory:hover:not(:disabled){opacity:.9}.btn-submit-theory:disabled{background:#1f2937;color:#4b5563;cursor:not-allowed}.eval-fail-box{margin-top:16px;background-color:#dc26261a;border:1px solid rgba(220,38,38,.3);border-radius:8px;padding:12px}.solved-container{display:flex;justify-content:center;align-items:center;padding:40px 0}.solved-card{background:linear-gradient(180deg,#1e1b4b,#0f172a);border:2px solid #eab308;border-radius:24px;padding:48px;max-width:600px;width:100%;text-align:center;box-shadow:0 20px 40px -15px #eab3084d}.solved-icon-wrapper{width:96px;height:96px;background-color:#eab3081a;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 24px}.solved-icon{color:#eab308;filter:drop-shadow(0 0 12px rgba(234,179,8,.6))}.solved-title{font-size:32px;font-weight:800;color:#fff;margin-bottom:8px}.solved-subtitle{color:#9ca3af;font-size:16px;margin-bottom:24px}.solved-stats{display:flex;justify-content:center;gap:24px;margin-bottom:24px}.stat-item{display:flex;align-items:center;gap:8px;background-color:#1f293799;padding:8px 16px;border-radius:20px;font-size:14px}.stars-display{display:flex;justify-content:center;gap:12px;margin-bottom:32px}.star-active.large{filter:drop-shadow(0 0 8px rgba(251,191,36,.8))}.knowledge-box{background-color:#111827cc;border:1px solid #1f2937;border-radius:12px;padding:20px;text-align:left;margin-bottom:32px}.knowledge-box h3{font-size:16px;font-weight:700;color:#60a5fa;margin-bottom:8px}.knowledge-box p{color:#d1d5db;font-size:14px;line-height:1.6}.solved-actions{display:flex;justify-content:center;gap:16px}.btn-primary{background-color:#1f2937;color:#fff;border:1px solid #374151;padding:12px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:background-color .2s}.btn-primary:hover{background-color:#374151}.btn-accent{background-color:#2563eb;color:#fff;border:none;padding:12px 24px;border-radius:8px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:6px;transition:background-color .2s}.btn-accent:hover{background-color:#1d4ed8}