:root{--bg-base: #FAFAF8;--bg-surface: #FFFFFF;--bg-elevated: #FFFFFF;--bg-muted: #F7F6F3;--bg-subtle: #F2F1EE;--bg-hover: rgba(0, 0, 0, .03);--bg-active: rgba(0, 0, 0, .06);--text-primary: #1C1C1C;--text-secondary: #5C5C5C;--text-tertiary: #8A8A8A;--text-quaternary: #B0B0B0;--text-inverse: #FFFFFF;--primary-50: #EEF2FF;--primary-100: #E0E7FF;--primary-200: #C7D2FE;--primary-300: #A5B4FC;--primary-400: #818CF8;--primary-500: #6366F1;--primary-600: #4F46E5;--primary-700: #4338CA;--primary-800: #3730A3;--primary-900: #312E81;--accent: var(--primary-600);--accent-light: var(--primary-50);--accent-muted: var(--primary-100);--success-50: #ECFDF5;--success-100: #D1FAE5;--success-500: #10B981;--success-600: #059669;--success-700: #047857;--warning-50: #FFFBEB;--warning-100: #FEF3C7;--warning-500: #F59E0B;--warning-600: #D97706;--warning-700: #B45309;--error-50: #FEF2F2;--error-100: #FEE2E2;--error-500: #EF4444;--error-600: #DC2626;--error-700: #B91C1C;--info-50: #EFF6FF;--info-100: #DBEAFE;--info-500: #3B82F6;--info-600: #2563EB;--info-700: #1D4ED8;--border-subtle: rgba(0, 0, 0, .06);--border-default: rgba(0, 0, 0, .09);--border-strong: rgba(0, 0, 0, .15);--border-accent: var(--primary-200);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .02);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .04), 0 1px 2px rgba(0, 0, 0, .02);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .04), 0 2px 4px -1px rgba(0, 0, 0, .02);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .02);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .06), 0 10px 10px -5px rgba(0, 0, 0, .02);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .12);--radius-xs: 4px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 20px;--radius-full: 9999px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--font-sans: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--text-2xs: 10px;--text-xs: 11px;--text-sm: 12px;--text-base: 13px;--text-md: 14px;--text-lg: 15px;--text-xl: 16px;--text-2xl: 18px;--text-3xl: 20px;--text-4xl: 24px;--text-5xl: 30px;--leading-none: 1;--leading-tight: 1.2;--leading-snug: 1.35;--leading-normal: 1.5;--leading-relaxed: 1.65;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--duration-fast: .12s;--duration-normal: .2s;--duration-slow: .3s;--sidebar-width: 260px;--sidebar-collapsed: 64px;--header-height: 56px;--content-max: 1200px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);font-size:var(--text-md);line-height:var(--leading-normal);color:var(--text-primary);background:var(--bg-base);letter-spacing:-.01em}.app-wrapper{display:flex;min-height:100vh;min-height:100dvh}.sidebar{width:var(--sidebar-width);height:100vh;height:100dvh;position:fixed;left:0;top:0;display:flex;flex-direction:column;background:var(--bg-surface);border-right:1px solid var(--border-subtle);z-index:100;transition:width var(--duration-slow) var(--ease-out);overflow:hidden}.sidebar:before{content:"";position:absolute;top:0;right:0;bottom:0;width:1px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.02) 20%,rgba(0,0,0,.02) 80%,transparent)}.sidebar-brand{padding:var(--space-5) var(--space-5);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;gap:var(--space-3);position:relative}.sidebar-brand:after{content:"";position:absolute;bottom:0;left:var(--space-5);right:var(--space-5);height:1px;background:linear-gradient(90deg,transparent,var(--border-subtle),transparent)}.sidebar-logo{width:36px;height:36px;background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-500) 50%,var(--primary-400) 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:var(--text-md);flex-shrink:0;box-shadow:0 2px 8px #6366f14d,inset 0 1px #fff3;position:relative;overflow:hidden}.sidebar-name{font-size:var(--text-md);font-weight:600;color:var(--text-primary);letter-spacing:-.02em}.sidebar-subtitle{font-size:var(--text-xs);color:var(--text-tertiary);letter-spacing:0}.sidebar-nav{flex:1;padding:var(--space-4) var(--space-3);overflow-y:auto;overflow-x:hidden}.nav-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--text-secondary);font-size:var(--text-base);font-weight:450;cursor:pointer;transition:all var(--duration-fast) var(--ease-out);position:relative;margin-bottom:2px}.nav-icon{width:20px;height:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0;opacity:.6;transition:opacity var(--duration-fast)}.nav-item.active .nav-icon{opacity:1}@media(hover:hover)and (pointer:fine){.nav-item:hover .nav-icon{opacity:1}}.nav-text{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-badge{background:linear-gradient(135deg,var(--error-500) 0%,var(--error-600) 100%);color:#fff;font-size:var(--text-2xs);font-weight:600;padding:2px 6px;border-radius:var(--radius-full);min-width:18px;text-align:center;box-shadow:0 1px 2px #ef44444d}.sidebar-user{padding:var(--space-4);border-top:1px solid var(--border-subtle);position:relative}.sidebar-user:before{content:"";position:absolute;top:0;left:var(--space-5);right:var(--space-5);height:1px;background:linear-gradient(90deg,transparent,var(--border-subtle),transparent)}.user-card{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2);border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.user-avatar{width:34px;height:34px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:500;font-size:var(--text-sm);flex-shrink:0;box-shadow:0 2px 6px #667eea4d;position:relative;overflow:hidden}.user-info{flex:1;min-width:0}.main-wrapper{flex:1;margin-left:var(--sidebar-width);min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;transition:margin-left var(--duration-slow) var(--ease-out);background:var(--bg-base)}.topbar{height:var(--header-height);background:#fffc;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-6);position:sticky;top:0;z-index:50}.topbar-title{font-size:var(--text-xl);font-weight:600;color:var(--text-primary);letter-spacing:-.02em}.topbar-right{display:flex;align-items:center;gap:var(--space-2)}.content-inner{max-width:var(--content-max);margin:0 auto}.page-header{margin-bottom:var(--space-6)}.page-title{font-size:var(--text-5xl);font-weight:600;color:var(--text-primary);letter-spacing:-.03em;line-height:var(--leading-tight);margin-bottom:var(--space-2)}.page-subtitle{font-size:var(--text-md);color:var(--text-secondary);line-height:var(--leading-relaxed)}.page-actions{display:flex;align-items:center;gap:var(--space-3);margin-top:var(--space-5)}.mobile-nav{display:none}.metric-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary-400),var(--primary-600));opacity:0;transition:opacity var(--duration-normal)}.metric-icon-wrap{width:44px;height:44px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-4);position:relative;overflow:hidden}.metric-icon-wrap:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:.1;border-radius:inherit}.metric-icon{font-size:22px;position:relative;z-index:1}.metric-value{font-size:var(--text-5xl);font-weight:600;color:var(--text-primary);letter-spacing:-.03em;line-height:var(--leading-tight);margin-bottom:var(--space-1)}.metric-label{font-size:var(--text-sm);color:var(--text-secondary);font-weight:450}.metric-trend{display:inline-flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);font-weight:500;margin-top:var(--space-3);padding:4px 10px;border-radius:var(--radius-full)}.metric-trend.up{background:var(--success-50);color:var(--success-600)}.metric-trend.down{background:var(--error-50);color:var(--error-600)}.metric-card.primary 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0}to{background-position:-200% 0}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:var(--space-6);z-index:1000;animation:fadeIn var(--duration-fast) var(--ease-out)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-surface);border-radius:var(--radius-2xl);box-shadow:var(--shadow-2xl);max-width:480px;width:100%;max-height:85vh;overflow:hidden;animation:modalSlideUp var(--duration-normal) var(--ease-out);border:1px solid var(--border-subtle)}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid 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var(--space-3);font-size:var(--text-base);color:var(--text-primary);background:none;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--duration-fast) var(--ease-out)}@media(hover:hover)and (pointer:fine){.dropdown-item:hover{background:var(--bg-hover)}}.dropdown-item.danger{color:var(--error-600)}@media(hover:hover)and (pointer:fine){.dropdown-item.danger:hover{background:var(--error-50)}}.dropdown-divider{height:1px;background:var(--border-subtle);margin:var(--space-1) 0}.tabs{display:flex;gap:var(--space-1);padding:var(--space-1);background:var(--bg-muted);border-radius:var(--radius-lg);margin-bottom:var(--space-6)}.tab{flex:1;padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:500;color:var(--text-secondary);background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.tab.active{background:var(--bg-surface);color:var(--text-primary);box-shadow:var(--shadow-sm)}.progress{height:6px;background:var(--bg-subtle);border-radius:var(--radius-full);overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary-400),var(--primary-600));border-radius:var(--radius-full);transition:width var(--duration-slow) var(--ease-out)}@media(max-width:1200px){.metrics-row{grid-template-columns:repeat(2,1fr)}}@media(max-width:1024px){:root{--sidebar-width: var(--sidebar-collapsed)}.sidebar-name,.sidebar-subtitle,.nav-group-title,.nav-text,.user-info{display:none}.nav-item{justify-content:center;padding:var(--space-3)}.nav-item.active:before{display:none}.nav-badge{position:absolute;top:4px;right:4px}.user-card{justify-content:center;padding:var(--space-2)}.main-wrapper{margin-left:var(--sidebar-collapsed)}}@media(max-width:768px){:root{--sidebar-width: 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var(--border-subtle)}.search-box{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:var(--space-3);color:var(--text-tertiary);pointer-events:none}.search-input{width:100%;padding:var(--space-2) var(--space-3) var(--space-2) var(--space-8);font-size:var(--text-base);background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:all var(--duration-fast)}.search-input:focus{outline:none;border-color:var(--primary-300);box-shadow:0 0 0 3px var(--primary-100)}.filter-group{display:flex;align-items:center;gap:var(--space-2);color:var(--text-secondary)}.filter-select{padding:var(--space-2) var(--space-3);font-size:var(--text-sm);background:var(--bg-surface);border:1px solid 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var(--border-subtle);border-radius:var(--radius-lg);transition:all var(--duration-fast)}@media(hover:hover)and (pointer:fine){.product-card:hover{border-color:var(--border-default);box-shadow:var(--shadow-sm)}}.product-image{width:64px;height:64px;background:var(--bg-muted);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);overflow:hidden;flex-shrink:0}.product-image img{width:100%;height:100%;object-fit:cover;border-radius:4px}.product-image-upload-section{display:flex;flex-direction:column;gap:8px;margin-top:4px}.product-image-label{font-size:var(--text-sm);font-weight:600;color:var(--text-secondary)}.product-image-label 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14px!important;font-size:var(--text-sm)!important}.product-info{flex:1;min-width:0}.product-name{font-size:var(--text-md);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-1)}.product-desc{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-2)}.product-price{font-size:var(--text-md);font-weight:600;color:var(--primary-600)}.calendar-page{max-width:1400px;margin:0 auto}.calendar-header{display:flex;align-items:center;justify-content:center;gap:var(--space-4);margin-bottom:var(--space-5)}.calendar-month-title{font-size:var(--text-xl);font-weight:600;color:var(--text-primary);min-width:150px;text-align:center}.calendar-grid{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);overflow:hidden;margin-bottom:var(--space-6)}.calendar-weekdays{display:grid;grid-template-columns:repeat(7,1fr);background:var(--bg-muted);border-bottom:1px solid var(--border-subtle)}.calendar-weekday{padding:var(--space-3);text-align:center;font-size:var(--text-sm);font-weight:600;color:var(--text-secondary)}.calendar-days{display:grid;grid-template-columns:repeat(7,1fr)}.calendar-day{min-height:100px;padding:var(--space-2);border-right:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);transition:background var(--duration-fast)}.calendar-day:nth-child(7n){border-right:none}@media(hover:hover)and (pointer:fine){.calendar-day:hover{background:var(--bg-hover)}}.calendar-day.today{background:var(--primary-50)}.calendar-day.other-month{background:var(--bg-muted);opacity:.5}.day-number{font-size:var(--text-sm);font-weight:500;color:var(--text-secondary);margin-bottom:var(--space-1)}.calendar-day.today .day-number{color:var(--primary-600);font-weight:700}.day-items{display:flex;flex-direction:column;gap:2px}.day-item{padding:2px var(--space-1);background:var(--bg-muted);border-radius:var(--radius-sm);border-left:2px solid var(--primary-500);font-size:var(--text-2xs);color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.day-item-title{display:block}.day-item-more{font-size:var(--text-2xs);color:var(--text-tertiary);padding-left:var(--space-1)}.calendar-content-list{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--space-5)}.content-items{display:flex;flex-direction:column;gap:var(--space-3)}.content-item-card{padding:var(--space-4);background:var(--bg-muted);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.content-item-header{display:flex;align-items:center;gap:var(--space-4);flex:1}.content-item-date{font-size:var(--text-sm);font-weight:600;color:var(--text-secondary);min-width:50px}.content-item-title{font-size:var(--text-md);font-weight:500;color:var(--text-primary);margin-bottom:var(--space-1)}.content-item-meta{display:flex;align-items:center;gap:var(--space-3)}.content-status{display:flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);font-weight:500}.video-progress{font-size:var(--text-xs);color:var(--info-600)}.content-item-actions{display:flex;gap:var(--space-2)}.review-page{max-width:1200px;margin:0 auto}.review-list{display:flex;flex-direction:column;gap:var(--space-4)}.review-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);overflow:hidden;transition:all var(--duration-normal)}@media(hover:hover)and (pointer:fine){.review-card:hover{border-color:var(--border-default);box-shadow:var(--shadow-md)}}.review-card-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--border-subtle)}.review-merchant{display:flex;align-items:center;gap:var(--space-3)}.merchant-avatar-sm{width:32px;height:32px;background:linear-gradient(135deg,var(--primary-400) 0%,var(--primary-600) 100%);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:var(--text-sm)}.merchant-name{font-size:var(--text-base);font-weight:500;color:var(--text-primary)}.review-status{display:flex;align-items:center;gap:var(--space-1);font-size:var(--text-sm);font-weight:500}.review-card-body{padding:var(--space-5)}.review-title{font-size:var(--text-lg);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-4)}.review-section{margin-bottom:var(--space-4)}.review-section:last-child{margin-bottom:0}.review-section-label{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);font-weight:500;color:var(--text-secondary);margin-bottom:var(--space-2)}.review-section-content{padding:var(--space-3);background:var(--bg-muted);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--text-secondary);line-height:1.6}.script-preview{max-height:120px;overflow:hidden}.storyboard-frames{display:flex;flex-direction:column;gap:var(--space-2)}.frame-preview{display:flex;align-items:flex-start;gap:var(--space-2);padding:var(--space-2);background:var(--bg-muted);border-radius:var(--radius-md)}.frame-number{width:20px;height:20px;background:var(--primary-100);color:var(--primary-600);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:var(--text-xs);font-weight:600;flex-shrink:0}.frame-desc{font-size:var(--text-sm);color:var(--text-secondary)}.frame-more{font-size:var(--text-xs);color:var(--text-tertiary);padding-left:var(--space-6)}.video-progress-bar{height:8px;background:var(--bg-muted);border-radius:var(--radius-full);overflow:hidden;margin-bottom:var(--space-2)}.video-progress-bar .progress{height:100%;background:linear-gradient(90deg,var(--info-400),var(--info-600));border-radius:var(--radius-full);transition:width var(--duration-normal)}.progress-text{font-size:var(--text-xs);color:var(--text-secondary)}.review-card-footer{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-2);padding:var(--space-4) var(--space-5);border-top:1px solid var(--border-subtle);background:var(--bg-muted)}.settings-page{max-width:800px;margin:0 auto}.settings-container{display:flex;flex-direction:column;gap:var(--space-6)}.settings-section{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--space-5)}.settings-section-header{display:flex;align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-5)}.settings-section-icon{width:44px;height:44px;background:var(--primary-50);color:var(--primary-600);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;flex-shrink:0}.settings-section-info h3{font-size:var(--text-lg);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-1)}.settings-section-info p{font-size:var(--text-sm);color:var(--text-secondary)}.provider-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-3)}.provider-card{padding:var(--space-4);background:var(--bg-muted);border:2px solid transparent;border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast);text-align:center}@media(hover:hover)and (pointer:fine){.provider-card:hover{border-color:var(--border-default)}}.provider-card.selected{border-color:var(--primary-500);background:var(--primary-50)}.provider-icon{font-size:28px;margin-bottom:var(--space-2)}.provider-name{font-size:var(--text-sm);font-weight:500;color:var(--text-primary)}.settings-form{display:flex;flex-direction:column;gap:var(--space-5)}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:var(--text-sm);font-weight:500;color:var(--text-primary)}.form-input,.form-select{padding:var(--space-3);font-size:var(--text-base);background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:all var(--duration-fast)}.form-input:focus,.form-select:focus{outline:none;border-color:var(--primary-300);box-shadow:0 0 0 3px var(--primary-100)}.form-hint{font-size:var(--text-xs);color:var(--text-tertiary)}.form-range{width:100%;height:6px;background:var(--bg-muted);border-radius:var(--radius-full);-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer}.form-range::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;background:var(--primary-500);border-radius:var(--radius-full);cursor:pointer;box-shadow:0 2px 4px #6366f14d}.settings-tip{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);background:var(--info-50);border:1px solid var(--info-100);border-radius:var(--radius-lg);color:var(--info-700);font-size:var(--text-sm)}.settings-tip svg{flex-shrink:0;margin-top:2px}.settings-actions{display:flex;justify-content:flex-end;gap:var(--space-3);padding-top:var(--space-4);border-top:1px solid var(--border-subtle)}.settings-message{text-align:center;padding:var(--space-3);background:var(--success-50);color:var(--success-600);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500}.spinner{width:16px;height:16px;border:2px solid transparent;border-top-color:currentColor;border-radius:var(--radius-full);animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chat-interface{display:flex;height:calc(100vh - var(--header-height) - var(--space-12) - 48px);height:calc(100dvh - var(--header-height) - var(--space-12) - 48px);background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-sm)}.conversation-list-panel{width:360px;border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;background:var(--bg-surface)}.conversation-header{padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between}.conversation-title{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-lg);font-weight:600;color:var(--text-primary)}.conversation-count{background:var(--primary-50);color:var(--primary-600);font-size:var(--text-xs);font-weight:600;padding:2px 8px;border-radius:var(--radius-full)}.conversation-search{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--border-subtle);position:relative}.conversation-list{flex:1;overflow-y:auto;padding:var(--space-2)}.conversation-card{padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast);margin-bottom:var(--space-1);border:1px solid transparent}@media(hover:hover)and (pointer:fine){.conversation-card:hover{background:var(--bg-hover)}}.conversation-card.selected{background:var(--primary-50);border-color:var(--primary-200)}.conversation-card.unread{background:var(--bg-muted)}.conversation-card-header{display:flex;align-items:flex-start;gap:var(--space-3)}.conversation-avatar{width:44px;height:44px;background:linear-gradient(135deg,var(--primary-400) 0%,var(--primary-600) 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:var(--text-lg);flex-shrink:0}.conversation-info{flex:1;min-width:0}.conversation-name{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);margin-bottom:var(--space-1)}.conversation-name>span:first-child{font-size:var(--text-base);font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-time{font-size:var(--text-xs);color:var(--text-tertiary);flex-shrink:0}.conversation-preview{font-size:var(--text-sm);color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.unread-badge{background:linear-gradient(135deg,var(--error-500) 0%,var(--error-600) 100%);color:#fff;font-size:var(--text-xs);font-weight:600;padding:2px 6px;border-radius:var(--radius-full);min-width:20px;text-align:center;flex-shrink:0}.conversation-card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:var(--space-2);padding-left:calc(44px + var(--space-3))}.status-indicator{display:flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);color:var(--text-tertiary)}.status-indicator.active{color:var(--success-600)}.merchant-location{display:flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);color:var(--text-tertiary)}.conversation-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:var(--text-tertiary);gap:var(--space-2)}.chat-detail-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-base)}.chat-header{padding:var(--space-4) var(--space-5);background:var(--bg-surface);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between}.chat-header-info{display:flex;align-items:center;gap:var(--space-3)}.chat-avatar{width:48px;height:48px;background:linear-gradient(135deg,var(--primary-400) 0%,var(--primary-600) 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:var(--text-xl);box-shadow:0 2px 8px #6366f14d}.chat-user-info{display:flex;flex-direction:column}.chat-username{font-size:var(--text-lg);font-weight:600;color:var(--text-primary);margin-bottom:2px}.chat-status{display:flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);color:var(--success-600)}.assigned-support{background:var(--primary-50);color:var(--primary-700);font-size:var(--text-xs);font-weight:500;padding:var(--space-1) var(--space-3);border-radius:var(--radius-full)}.merchant-info-bar{padding:var(--space-3) var(--space-5);background:var(--bg-surface);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;gap:var(--space-6)}.merchant-info-item{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--text-secondary)}.merchant-info-item svg{color:var(--text-tertiary)}.messages-container{flex:1;overflow-y:auto;padding:var(--space-5)}.messages-list{display:flex;flex-direction:column;gap:var(--space-4)}.messages-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-tertiary);text-align:center}.messages-empty svg{opacity:.3;margin-bottom:var(--space-4)}.messages-empty p{font-size:var(--text-lg);font-weight:500;color:var(--text-secondary);margin-bottom:var(--space-1)}.messages-empty span{font-size:var(--text-sm)}.message-wrapper{display:flex;gap:var(--space-3);max-width:75%}.message-wrapper.own{margin-left:auto;flex-direction:row-reverse}.message-avatar{width:32px;height:32px;background:linear-gradient(135deg,var(--primary-400) 0%,var(--primary-600) 100%);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:500;font-size:var(--text-sm);flex-shrink:0}.message-avatar.own{background:linear-gradient(135deg,#667eea,#764ba2)}.message-content{display:flex;flex-direction:column;gap:var(--space-1)}.message-wrapper.own .message-content{align-items:flex-end}.message-bubble{padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);font-size:var(--text-base);line-height:1.65}.message-wrapper.other .message-bubble{background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--border-subtle);border-top-left-radius:var(--radius-xs)}.message-wrapper.own .message-bubble{background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);color:#fff;border-top-right-radius:var(--radius-xs);box-shadow:0 2px 8px #6366f140}.message-time{font-size:var(--text-xs);color:var(--text-tertiary);padding:0 var(--space-2)}.message-input-container{padding:var(--space-4) var(--space-5);background:var(--bg-surface);border-top:1px solid var(--border-subtle)}.message-input-wrapper{display:flex;align-items:flex-end;gap:var(--space-3);background:var(--bg-muted);border-radius:var(--radius-xl);padding:var(--space-2);border:1px solid var(--border-subtle);transition:all var(--duration-fast)}.message-input-wrapper:focus-within{border-color:var(--primary-300);box-shadow:0 0 0 3px var(--primary-100)}.message-textarea{flex:1;padding:var(--space-2) var(--space-3);font-size:var(--text-base);font-family:inherit;background:transparent;border:none;resize:none;min-height:40px;max-height:120px;line-height:1.5}.message-textarea:focus{outline:none}.send-button{width:40px;height:40px;background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);color:#fff;border:none;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--duration-fast);box-shadow:0 2px 6px #6366f14d}@media(hover:hover)and (pointer:fine){.send-button:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);transform:scale(1.05)}}.send-button:disabled{opacity:.5;cursor:not-allowed}.chat-empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-8)}.chat-empty-icon{width:96px;height:96px;background:linear-gradient(135deg,var(--bg-muted) 0%,var(--bg-subtle) 100%);border-radius:var(--radius-2xl);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-5);position:relative;overflow:hidden}.chat-empty-icon:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(255,255,255,.6),transparent)}.chat-empty-icon svg{opacity:.4;color:var(--primary-500)}.chat-empty-state h3{font-size:var(--text-xl);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-2)}.chat-empty-state p{font-size:var(--text-md);color:var(--text-secondary)}.overview-page{max-width:1400px;margin:0 auto}.overview-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:var(--space-6)}.overview-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-5);margin-bottom:var(--space-6)}.merchant-mini-list{display:flex;flex-direction:column}.merchant-mini-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--border-subtle);transition:background var(--duration-fast);cursor:pointer}.merchant-mini-item:last-child{border-bottom:none}@media(hover:hover)and (pointer:fine){.merchant-mini-item:hover{background:var(--bg-hover)}}.merchant-mini-avatar{width:40px;height:40px;background:linear-gradient(135deg,var(--primary-400) 0%,var(--primary-600) 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