:root{--color-primary: #1a5276;--color-primary-light: #2980b9;--color-primary-dark: #0e3a54;--color-accent: #27ae60;--color-bg: #f0f4f8;--color-surface: #ffffff;--color-text: #2c3e50;--color-text-light: #7f8c8d;--color-text-inverse: #ffffff;--color-border: #dce3e8;--color-user-bubble: #1a5276;--color-user-text: #ffffff;--color-bot-bubble: #ffffff;--color-bot-text: #2c3e50;--color-escalation: #e67e22;--color-escalation-bg: #fef5e7;--radius-lg: 20px;--radius-md: 12px;--radius-sm: 8px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .12);--font-family: "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background:var(--color-bg);color:var(--color-text);min-height:100vh}.dashboard{display:flex;flex-direction:column;min-height:100vh}.dash-header{background:var(--color-primary);color:#fff;padding:16px 24px;display:flex;justify-content:space-between;align-items:center}.dash-header-left{display:flex;align-items:center;gap:16px}.dash-home-link{color:#ffffffb3;text-decoration:none;font-size:13px;padding:4px 8px;border-radius:4px;transition:all .2s}.dash-home-link:hover{color:#fff;background:#ffffff26}.dash-header h1{font-size:18px;font-weight:600}.dash-nav{display:flex;gap:4px;margin-left:20px;padding-left:20px;border-left:1px solid rgba(255,255,255,.3)}.dash-nav-link{color:#fff9;text-decoration:none;font-size:14px;font-weight:500;padding:6px 14px;border-radius:var(--radius-sm);transition:all .2s}.dash-nav-link:hover{color:#fff;background:#ffffff1f}.dash-nav-link.active{color:#fff;background:#fff3;font-weight:600}.learning-tabs{display:flex;padding:0 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.learning-tab{padding:14px 24px;border:none;background:transparent;font-size:14px;font-weight:500;color:var(--color-text-light);cursor:pointer;border-bottom:2px solid transparent;transition:all .2s}.learning-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:600}.learning-tab:hover:not(.active){color:var(--color-text);background:#f8f9fa}.learning-content{flex:1;padding:20px 24px}.learning-body{display:grid;grid-template-columns:340px 1fr;gap:16px;height:calc(100vh - 160px)}.question-sidebar{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column}.question-list{flex:1;overflow-y:auto;padding:8px}.empty-state{text-align:center;padding:40px 16px;color:var(--color-text-light);font-size:14px}.question-card{padding:14px 16px;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s;border:1px solid transparent;margin-bottom:4px}.question-card:hover{background:#f4f7fa}.question-card.active{background:#eaf2f8;border-color:var(--color-primary-light)}.question-card-text{font-size:14px;font-weight:500;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px}.question-card-meta{font-size:12px;color:var(--color-text-light);display:flex;gap:8px}.learning-panel{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow-y:auto;display:flex;flex-direction:column}.panel-placeholder{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--color-text-light);gap:12px}.panel-placeholder svg{opacity:.3}.panel-placeholder p{font-size:14px}.panel-content{padding:24px;display:flex;flex-direction:column;gap:24px}.panel-section{display:flex;flex-direction:column;gap:12px}.panel-section-title{font-size:14px;font-weight:600;color:var(--color-text);padding-bottom:8px;border-bottom:1px solid var(--color-border)}.original-question{background:#f8f9fa;padding:14px 18px;border-radius:var(--radius-sm);font-size:15px;line-height:1.6;border-left:3px solid var(--color-primary-light)}.question-meta{font-size:12px;color:var(--color-text-light)}.suggestions-loading{font-size:13px;color:var(--color-text-light);padding:12px}.suggestion-cards{display:flex;flex-direction:column;gap:8px}.suggestion-card{padding:14px 18px;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;transition:all .15s;background:var(--color-surface)}.suggestion-card:hover{border-color:var(--color-primary-light);background:#f0f6fc}.suggestion-card.selected{border-color:var(--color-primary);background:#eaf2f8;box-shadow:0 0 0 1px var(--color-primary)}.suggestion-card-q{font-size:14px;font-weight:600;margin-bottom:6px;color:var(--color-text)}.suggestion-card-a{font-size:13px;color:var(--color-text-light);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.suggestion-card-score{font-size:11px;color:var(--color-primary-light);margin-top:6px;font-weight:600}.no-suggestions{font-size:13px;color:var(--color-text-light);padding:12px;text-align:center;background:#f8f9fa;border-radius:var(--radius-sm)}.learning-form{display:flex;flex-direction:column;gap:14px}.form-row{display:flex;flex-direction:column;gap:4px}.form-row label{font-size:13px;font-weight:600;color:var(--color-text)}.form-row input,.form-row textarea,.form-row select{padding:10px 14px;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:14px;outline:none;transition:border-color .2s}.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:var(--color-primary-light)}.form-row textarea{resize:vertical;min-height:80px}.btn-primary{padding:10px 24px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;align-self:flex-start}.btn-primary:hover{background:var(--color-primary-light)}.btn-primary:disabled{background:var(--color-border);cursor:not-allowed}.btn-secondary{padding:10px 24px;background:transparent;color:var(--color-text);border:1.5px solid var(--color-border);border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-secondary:hover{background:#f8f9fa;border-color:var(--color-text-light)}.btn-danger{padding:6px 14px;background:transparent;color:#e74c3c;border:1px solid #e74c3c;border-radius:var(--radius-sm);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.btn-danger:hover{background:#fdf0ef}.faq-toolbar{display:flex;gap:12px;margin-bottom:16px;align-items:center}.faq-search{flex:1;padding:10px 14px;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:14px;outline:none;max-width:400px}.faq-search:focus{border-color:var(--color-primary-light)}.faq-filter{padding:10px 14px;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:14px;outline:none;background:var(--color-surface)}.faq-list{display:flex;flex-direction:column;gap:8px}.faq-card{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:16px 20px;display:flex;flex-direction:column;gap:8px}.faq-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.faq-card-q{font-size:15px;font-weight:600;line-height:1.5;flex:1}.faq-card-actions{display:flex;gap:8px;flex-shrink:0}.faq-card-actions button{padding:4px 12px;border-radius:var(--radius-sm);font-size:12px;font-weight:500;cursor:pointer;border:1px solid var(--color-border);background:transparent;color:var(--color-text-light);transition:all .2s}.faq-card-actions .edit-btn:hover{background:#eaf2f8;border-color:var(--color-primary-light);color:var(--color-primary)}.faq-card-actions .delete-btn:hover{background:#fdf0ef;border-color:#e74c3c;color:#e74c3c}.faq-card-a{font-size:14px;color:var(--color-text-light);line-height:1.6}.faq-card-meta{display:flex;gap:12px;font-size:12px;color:var(--color-text-light)}.faq-category-badge{background:#eaf2f8;color:var(--color-primary);padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);width:90%;max-width:560px;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;border-bottom:1px solid var(--color-border)}.modal-header h3{font-size:16px;font-weight:600}.modal-close{background:none;border:none;font-size:22px;color:var(--color-text-light);cursor:pointer;padding:4px;line-height:1}.modal-close:hover{color:var(--color-text)}.modal-body{padding:20px 24px;display:flex;flex-direction:column;gap:14px}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 24px;border-top:1px solid var(--color-border)}.toast{position:fixed;bottom:24px;right:24px;padding:12px 24px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:#fff;z-index:2000;animation:toast-in .3s ease-out}.toast.success{background:var(--color-accent)}.toast.error{background:#e74c3c}@keyframes toast-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:860px){.learning-body{grid-template-columns:1fr;height:auto}.question-sidebar{max-height:300px}}