*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--bg: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #1e293b;--text-muted: #64748b;--sidebar-w: 220px;--radius: 8px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--bg)}.app-layout{display:flex;height:100vh;overflow:hidden}.main-content{flex:1;overflow-y:auto}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 0;flex-shrink:0}.sidebar-logo{display:flex;align-items:center;gap:8px;padding:0 16px 16px;font-weight:700;font-size:16px}.logo-icon{font-size:20px}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 8px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius);text-decoration:none;color:var(--text-muted);font-size:14px;transition:background .15s}.nav-item:hover{background:var(--bg);color:var(--text)}.nav-item.active{background:#eff6ff;color:var(--primary);font-weight:500}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.user-email{font-size:12px;color:var(--text-muted);display:block;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.signout-btn{width:100%;padding:6px;border:1px solid var(--border);border-radius:var(--radius);background:none;cursor:pointer;font-size:13px;color:var(--text-muted)}.signout-btn:hover{background:var(--bg)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:40px;width:100%;max-width:400px}.auth-card h1{font-size:24px;margin-bottom:4px}.auth-subtitle{color:var(--text-muted);margin-bottom:24px;font-size:14px}.auth-card form{display:flex;flex-direction:column;gap:12px}.auth-card input{padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none}.auth-card input:focus{border-color:var(--primary)}.auth-card button[type=submit]{padding:10px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:14px;cursor:pointer}.auth-card button[type=submit]:hover{background:var(--primary-hover)}.auth-divider{text-align:center;color:var(--text-muted);font-size:13px;margin:12px 0}.oauth-btn{width:100%;padding:10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer;font-size:14px;margin-bottom:8px}.oauth-btn:hover{background:var(--bg)}.auth-link{text-align:center;font-size:13px;color:var(--text-muted);margin-top:16px}.auth-link a{color:var(--primary);text-decoration:none}.error{color:var(--danger);font-size:13px}.chat-page{display:flex;flex-direction:column;height:100vh}.chat-messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.welcome{text-align:center;padding:60px 20px;color:var(--text-muted)}.welcome h2{font-size:22px;color:var(--text);margin-bottom:8px}.message-user{align-self:flex-end;background:var(--primary);color:#fff;padding:10px 16px;border-radius:18px 18px 4px;max-width:300px;font-size:14px}.message-assistant{align-self:flex-start;width:100%;max-width:800px}.loading-indicator{display:flex;align-items:center;gap:10px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-muted);font-size:14px}.spinner{width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.chat-input-area{border-top:1px solid var(--border);padding:16px;background:var(--surface)}.action-buttons{display:flex;gap:10px;flex-wrap:wrap}.action-btn{display:flex;flex-direction:column;align-items:flex-start;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer;text-align:left;transition:border-color .15s,box-shadow .15s;min-width:160px}.action-btn:hover{border-color:var(--primary);box-shadow:0 0 0 3px #eff6ff}.action-icon{font-size:20px;margin-bottom:4px}.action-label{font-size:14px;font-weight:600;color:var(--text)}.action-desc{font-size:12px;color:var(--text-muted);margin-top:2px}.input-panel{display:flex;flex-direction:column;gap:10px}.input-panel input,.input-panel textarea{padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;font-family:inherit}.input-panel input:focus,.input-panel textarea:focus{border-color:var(--primary)}.file-label{font-size:13px;color:var(--text-muted);display:flex;flex-direction:column;gap:4px}.file-label input[type=file]{font-size:13px}.panel-actions{display:flex;gap:8px;justify-content:flex-end}.btn-primary{padding:8px 20px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:14px}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{padding:8px 20px;border:1px solid var(--border);background:none;border-radius:var(--radius);cursor:pointer;font-size:14px}.btn-danger{padding:8px 20px;background:var(--danger);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:14px}.result-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-header{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}.card-icon{font-size:28px}.card-header h3{font-size:16px;font-weight:600;margin-bottom:2px}.card-header p{font-size:13px;color:var(--text-muted)}.result-card section{margin-top:16px}.result-card h4{font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.result-table{width:100%;border-collapse:collapse;font-size:13px}.result-table th{background:var(--bg);padding:8px 10px;text-align:left;font-weight:500;border-bottom:1px solid var(--border)}.result-table td{padding:8px 10px;border-bottom:1px solid var(--border)}.result-table tr:last-child td{border-bottom:none}.result-table tr.recommended{background:#f0fdf4}.summary-grid{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:12px}.summary-item{display:flex;flex-direction:column;gap:2px}.summary-item .label{font-size:12px;color:var(--text-muted)}.summary-item .value{font-size:18px;font-weight:700}.score-good{color:#16a34a}.score-ok{color:#d97706}.score-bad{color:var(--danger)}.conclusion{font-size:13px;color:var(--text-muted);line-height:1.5}.risk-list{display:flex;flex-direction:column;gap:6px}.risk-item{display:flex;gap:8px;align-items:flex-start;padding:8px 10px;border-radius:6px;font-size:13px}.risk-item.risk-高{background:#fef2f2}.risk-item.risk-中{background:#fffbeb}.risk-item.risk-低{background:#f0fdf4}.risk-type{font-weight:500;white-space:nowrap}.damage-list{display:flex;flex-direction:column;gap:10px}.damage-item{border:1px solid var(--border);border-radius:var(--radius);padding:12px}.damage-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.damage-location{font-weight:600;font-size:14px}.badge{padding:2px 8px;border-radius:12px;font-size:11px;font-weight:500}.severity-重度{background:#fef2f2;color:var(--danger)}.severity-中度{background:#fffbeb;color:#d97706}.severity-轻度{background:#f0fdf4;color:#16a34a}.urgency-紧急{background:#fef2f2;color:var(--danger)}.urgency-一般{background:#eff6ff;color:var(--primary)}.urgency-不急{background:var(--bg);color:var(--text-muted)}.damage-type{font-size:13px;font-weight:500;margin-bottom:4px}.damage-desc,.damage-cause,.damage-resp{font-size:12px;color:var(--text-muted);margin-top:2px}.repair-plan-list{display:flex;flex-direction:column;gap:10px}.repair-plan-item{border:1px solid var(--border);border-radius:var(--radius);padding:12px}.plan-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--text-muted);margin-bottom:8px}.plan-steps{padding-left:16px;font-size:13px;line-height:1.6}.messages-section{margin-top:16px}.msg-tabs{display:flex;gap:4px;margin-bottom:8px}.msg-tab{padding:6px 14px;border:1px solid var(--border);border-radius:20px;background:none;cursor:pointer;font-size:13px}.msg-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.msg-content{position:relative;background:var(--bg);border-radius:var(--radius);padding:12px}.msg-content pre{font-family:inherit;font-size:13px;white-space:pre-wrap;line-height:1.6}.copy-btn{position:absolute;top:8px;right:8px;padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:var(--surface);cursor:pointer;font-size:12px}.file-card{margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.file-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.file-link{padding:6px 14px;border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);font-size:13px;background:var(--bg)}.file-link:hover{border-color:var(--primary);color:var(--primary)}.history-page,.profile-page{padding:32px;max-width:800px}.history-page h2,.profile-page h2{font-size:20px;margin-bottom:20px}.history-list{display:flex;flex-direction:column;gap:8px}.history-item{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text)}.history-item:hover{border-color:var(--primary)}.history-skill{font-weight:500;font-size:14px;flex:1}.history-scenario{font-size:12px;background:#eff6ff;color:var(--primary);padding:2px 8px;border-radius:12px}.history-meta{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--text-muted)}.status-badge{padding:2px 8px;border-radius:12px;font-size:11px}.status-completed{background:#f0fdf4;color:#16a34a}.status-failed{background:#fef2f2;color:var(--danger)}.empty-state{text-align:center;padding:60px;color:var(--text-muted)}.empty-state p{margin-bottom:16px}.back-link{display:inline-block;margin-bottom:16px;color:var(--primary);text-decoration:none;font-size:14px}.profile-card{display:flex;align-items:center;gap:16px;padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px}.avatar{width:48px;height:48px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;flex-shrink:0}.profile-email{font-weight:500;margin-bottom:4px}.profile-provider,.profile-created{font-size:13px;color:var(--text-muted)}.page-loading,.page-error{padding:60px;text-align:center;color:var(--text-muted)}.loading{display:flex;align-items:center;justify-content:center;height:100vh;color:var(--text-muted)}.history-detail-page{padding:24px;max-width:900px}