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i{font-size:1.1em}.user-info{display:flex;align-items:center;gap:16px}.username{color:var(--color-semantic-text-primary);font-weight:var(--font-weight-medium)}.homepage-main{width:100%;height:calc(100vh - 80px);padding:0;margin:0;display:flex;flex-direction:column}.homepage-ai-companion-wrapper{flex:1;width:100%;height:100%;background:#fff;border-radius:0;box-shadow:none;overflow:hidden}.homepage-ai-companion-wrapper .ai-companion-container{height:100%;display:flex;flex-direction:column}.loading-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--color-semantic-text-secondary)}.loading-spinner{font-size:3rem;color:#4a90e2;animation:spin 1s linear 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var(--animation-transition-normal)}.quick-amount-btn:hover,.quick-amount-btn.active{border-color:#4a90e2;background:#4a90e2;color:#fff}.payment-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;z-index:1050;display:flex;align-items:center;justify-content:center;padding:16px}.payment-modal{background:var(--color-neutral-white);border-radius:16px;box-shadow:var(--shadow-xl);max-width:500px;width:100%;max-height:90vh;overflow-y:auto;position:relative;z-index:1051;display:flex;flex-direction:column}.payment-modal .modal-header{padding:24px;border-bottom:1px solid var(--color-border-divider);display:flex;align-items:center;justify-content:space-between;background:var(--color-primary-gradient);color:var(--color-neutral-white);border-radius:16px 16px 0 0}.payment-modal .modal-title{font-size:20px;font-weight:600;color:var(--color-neutral-white);margin:0}.payment-modal 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span{display:none}.btn{padding:8px;min-width:40px}.btn-reward span{display:none}.quick-amounts{gap:4px}.quick-amount-btn{flex:1;min-width:50px;font-size:12px;padding:4px 8px}.payment-modal-container{max-width:90%}.payment-qrcode img{max-width:200px}}.think-marker{background:linear-gradient(135deg,var(--color-info-light) 0%,var(--color-info-lighter) 100%);border:1px solid var(--color-info-dark);border-left:4px solid var(--color-info-dark);border-radius:var(--radius-sm);padding:var(--spacing-sm) var(--spacing-md);margin:var(--spacing-sm) 0;font-weight:var(--font-weight-semibold);color:var(--color-info-dark);font-size:var(--font-size-sm)}.answer-marker{background:linear-gradient(135deg,var(--color-success-light) 0%,var(--color-success-lighter) 100%);border:1px solid var(--color-success-base);border-left:4px solid var(--color-success-base);border-radius:var(--radius-sm);padding:var(--spacing-sm) var(--spacing-md);margin:var(--spacing-sm) 0;font-weight:var(--font-weight-semibold);color:var(--color-success-dark);font-size:var(--font-size-sm)}.ai-companion-container{display:flex;flex-direction:column;height:100%;background:var(--color-neutral-white);position:relative;overflow:hidden}.ai-companion-container:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:transparent;pointer-events:none}.ai-companion-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-lg, 20px) var(--spacing-lg, 24px);background:#fffffff2}@supports (backdrop-filter: blur(10px)){.ai-companion-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}}.ai-companion-header{border-bottom:1px solid rgba(255,255,255,.2);box-shadow:var(--shadow-lg);position:relative;z-index:10}.header-left{display:none}.header-title{display:flex;align-items:center;gap:var(--spacing-sm, 12px)}.header-title h3{margin:0;color:var(--color-semantic-text-dark);font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);background:var(--color-primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-title i{font-size:var(--font-size-3xl);color:var(--color-primary-base)}.status-indicator{width:8px;height:8px;border-radius:var(--radius-full);background:var(--color-border-base);transition:all var(--animation-duration-normal)}.status-indicator.active{background:var(--color-success-base);box-shadow:0 0 8px #4caf5080}.current-agent{display:flex;align-items:center;gap:var(--spacing-xs);margin-top:var(--spacing-xs);font-size:var(--font-size-sm);padding:var(--spacing-xs, 6px) var(--spacing-sm, 12px);background:#667eea1a;border-radius:var(--radius-xl);border:1px solid 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h5{color:var(--color-neutral-gray-700);margin-bottom:var(--spacing-md);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.action-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--spacing-sm, 12px)}.quick-action-btn{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-md);background:#667eea1a;border:2px solid transparent;border-radius:var(--radius-xl, 16px);cursor:pointer;transition:all var(--animation-transition-normal);color:var(--color-primary-base)}.quick-action-btn:hover{background:#667eea33;border-color:#667eea4d;transform:translateY(-4px);box-shadow:var(--shadow-primary-md)}.quick-action-btn i{font-size:var(--font-size-2xl)}.quick-action-btn span{font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm)}.example-questions h5{color:var(--color-neutral-gray-700);margin-bottom:var(--spacing-md);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.question-chips{display:flex;flex-wrap:wrap;gap:var(--spacing-sm, 12px);justify-content:center}.question-chip{padding:var(--spacing-sm, 12px) var(--spacing-lg, 20px);background:#fffc;border:1px solid rgba(102,126,234,.2);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--animation-transition-normal);color:var(--color-neutral-gray-700);font-size:var(--font-size-sm)}.question-chip:hover{background:#667eea1a;border-color:var(--color-primary-base);transform:translateY(-2px);box-shadow:0 8px 25px #667eea26}.header-actions{display:flex;flex-direction:row;gap:var(--spacing-xs);align-items:center;flex-wrap:nowrap}.ai-companion-header .header-actions .btn-icon{width:auto;min-width:44px;min-height:44px;height:44px;padding:0 var(--spacing-sm, 12px);display:flex;flex-direction:row;align-items:center;justify-content:center;gap:var(--spacing-xs, 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solid var(--color-primary-base);border-radius:50%;animation:spin var(--animation-duration-normal) linear infinite}.status-text{color:var(--color-primary-base);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);flex:1}.message.status{background:#667eea0d;border-left:4px solid var(--color-primary-base);margin:var(--spacing-xs) 0}.message.status .message-avatar{background:#667eea1a;color:var(--color-primary-base)}.message.status .message-content{padding:var(--spacing-xs) 0}.message-sources{margin-top:var(--spacing-sm, 12px);padding:var(--spacing-sm, 12px) var(--spacing-md);background:linear-gradient(135deg,#667eea14,#667eea0d);border:1px solid rgba(102,126,234,.2);border-radius:var(--radius-md);border-left:4px solid var(--color-primary-base)}.sources-header{display:flex;align-items:center;gap:var(--spacing-xs);margin-bottom:var(--spacing-sm, 10px);font-size:var(--font-size-sm, 13px);font-weight:var(--font-weight-semibold);color:var(--color-primary-base)}.sources-header i{font-size:var(--font-size-base)}.sources-list{display:flex;flex-direction:column;gap:var(--spacing-xs)}.source-item{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm, 12px);background:#ffffffb3;border-radius:var(--radius-sm);font-size:var(--font-size-sm, 13px);transition:all var(--animation-transition-fast);cursor:pointer}.source-item:hover{background:#ffffffe6;transform:translate(2px);box-shadow:0 2px 8px #667eea26}.source-item:focus-visible{outline:2px solid var(--color-primary-base);outline-offset:2px}.source-item i{color:var(--color-danger-base);font-size:var(--font-size-sm);flex-shrink:0}.source-filename{flex:1;color:var(--color-semantic-text-dark);font-weight:var(--font-weight-medium);word-break:break-all}.source-meta{display:flex;align-items:center;gap:var(--spacing-xs);flex-shrink:0}.source-page{color:var(--color-success-base);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);padding:2px 6px;background:#28a7451a;border-radius:var(--radius-xs)}.source-score{color:var(--color-primary-base);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);white-space:nowrap}.source-preview-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009}@supports (backdrop-filter: blur(4px)){.source-preview-modal{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}}.source-preview-modal{display:flex;align-items:center;justify-content:center;z-index:10000;animation:fadeIn var(--animation-transition-fast) ease}.source-preview-content{background:var(--color-neutral-white);border-radius:var(--radius-lg);width:90%;max-width:800px;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow-xl);animation:slideUp var(--animation-duration-normal) ease}.source-preview-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-lg, 20px) var(--spacing-lg, 24px);border-bottom:1px solid var(--color-border-base, var(--color-neutral-gray-200));background:linear-gradient(135deg,var(--color-neutral-gray-50) 0%,var(--color-neutral-gray-200) 100%);border-radius:var(--radius-xl, 16px) var(--radius-xl, 16px) 0 0}.source-preview-header h4{margin:0;color:var(--color-semantic-text-dark);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);display:flex;align-items:center;gap:var(--spacing-sm, 10px)}.source-preview-header h4 i{color:var(--color-danger-base);font-size:var(--font-size-xl)}.source-preview-header .close-btn{background:transparent;border:none;font-size:var(--font-size-2xl);color:var(--color-neutral-gray-600);cursor:pointer;padding:var(--spacing-xs, 4px) var(--spacing-xs);border-radius:var(--radius-xs);transition:all var(--animation-transition-fast);display:flex;align-items:center;justify-content:center;width:32px;height:32px}.source-preview-header .close-btn:hover{background:#6c757d1a;color:var(--color-neutral-gray-700)}.source-preview-body{padding:var(--spacing-lg, 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