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var(--transition-base)}.stat-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}.stat-card-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin-bottom:var(--space-1)}.stat-card-label{font-size:var(--font-size-sm);color:var(--color-text-tertiary)}.stat-card-icon{width:48px;height:48px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:24px;float:right}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (max-width: 639px){.container{padding:0 var(--space-4)}.page-header{flex-direction:column;align-items:flex-start;gap:var(--space-4)}.stats-grid{grid-template-columns:1fr}}@media (min-width: 640px) and (max-width: 1023px){.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1024px){.stats-grid{grid-template-columns:repeat(4,1fr)}}:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}[data-theme=dark]{--color-primary-50: #1e3a8a;--color-primary-100: #1d4ed8;--color-primary-200: #2563eb;--color-primary-300: #3b82f6;--color-primary-400: #60a5fa;--color-primary-500: #93c5fd;--color-primary-600: #bfdbfe;--color-primary-700: #dbeafe;--color-primary-800: #eff6ff;--color-primary-900: #f0f9ff;--color-secondary-50: #0f172a;--color-secondary-100: #1e293b;--color-secondary-200: #334155;--color-secondary-300: #475569;--color-secondary-400: #64748b;--color-secondary-500: #94a3b8;--color-secondary-600: #cbd5e1;--color-secondary-700: #e2e8f0;--color-secondary-800: #f1f5f9;--color-secondary-900: #f8fafc;--color-bg-primary: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-text-primary: #f1f5f9;--color-text-secondary: #cbd5e1;--color-text-tertiary: #94a3b8;--color-text-placeholder: #64748b;--color-border: #334155;--color-border-light: #1e293b;--color-border-dark: #475569;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .6)}[data-theme=dark] body{background-color:var(--color-bg-primary);color:var(--color-text-primary)}[data-theme=dark] .card{background-color:var(--color-bg-secondary);border-color:var(--color-border)}[data-theme=dark] .card:hover{box-shadow:var(--shadow-lg)}[data-theme=dark] .form-input{background-color:var(--color-bg-tertiary);border-color:var(--color-border);color:var(--color-text-primary)}[data-theme=dark] .form-input:focus{border-color:var(--color-primary-400);box-shadow:0 0 0 3px #60a5fa33}[data-theme=dark] .form-label{color:var(--color-text-secondary)}[data-theme=dark] .btn-secondary{background-color:var(--color-bg-tertiary);color:var(--color-text-primary);border-color:var(--color-border)}[data-theme=dark] .btn-secondary:hover{background-color:var(--color-border)}[data-theme=dark] .table th{background-color:var(--color-bg-secondary);color:var(--color-text-secondary);border-bottom-color:var(--color-border)}[data-theme=dark] .table td{color:var(--color-text-primary);border-bottom-color:var(--color-border-light)}[data-theme=dark] .table tr:hover{background-color:var(--color-bg-tertiary)}[data-theme=dark] .modal-overlay{background-color:#000000b3}[data-theme=dark] .modal-container{background-color:var(--color-bg-secondary);color:var(--color-text-primary)}[data-theme=dark] .empty-state-icon{color:var(--color-text-placeholder)}[data-theme=dark] .empty-state-title{color:var(--color-text-primary)}[data-theme=dark] .empty-state-description{color:var(--color-text-tertiary)}[data-theme=dark] .loading-spinner{border-color:var(--color-border);border-top-color:var(--color-primary-400)}[data-theme=dark] .skeleton{background:linear-gradient(90deg,var(--color-bg-tertiary) 25%,var(--color-border) 50%,var(--color-bg-tertiary) 75%)}.theme-toggle{position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--color-primary-500) 0%,var(--color-primary-700) 100%);color:#fff;border:none;cursor:pointer;font-size:1.5rem;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);transition:all var(--transition-normal);z-index:1000}.theme-toggle:hover{transform:scale(1.1);box-shadow:var(--shadow-xl)}[data-theme=dark] .theme-toggle{background:linear-gradient(135deg,#f59e0b,#d97706)}.design-system-demo{min-height:100vh;background:var(--color-bg-primary);color:var(--color-text-primary)}.demo-header{padding:48px 24px;background:linear-gradient(135deg,var(--color-primary-500) 0%,var(--color-primary-700) 100%);color:#fff;text-align:center}.demo-header h1{font-size:2.5rem;font-weight:700;margin-bottom:12px}.demo-header p{font-size:1.1rem;opacity:.95;margin-bottom:24px}.demo-content{max-width:1400px;margin:0 auto;padding:32px 24px}.demo-section{margin-bottom:48px}.demo-section h2{font-size:1.75rem;font-weight:600;color:var(--color-text-primary);margin-bottom:24px;padding-bottom:12px;border-bottom:2px solid var(--color-border)}.color-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.color-group h3{font-size:1rem;font-weight:600;color:var(--color-text-secondary);margin-bottom:12px}.color-preview{display:flex;gap:8px;flex-wrap:wrap}.color-box{width:60px;height:60px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.75rem;font-weight:600;box-shadow:var(--shadow-sm);transition:transform .2s}.color-box:hover{transform:scale(1.1);box-shadow:var(--shadow-md)}.color-box-large{width:100%;height:80px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;font-weight:600;margin-bottom:12px;box-shadow:var(--shadow-sm)}.button-demo{display:flex;flex-direction:column;gap:16px}.button-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.form-demo{max-width:400px}.form-group{margin-bottom:20px}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.card-header{margin-bottom:12px}.card-title{font-size:1.1rem;font-weight:600;color:var(--color-text-primary)}.card-body{margin-bottom:16px;color:var(--color-text-secondary);line-height:1.6}.card-footer{display:flex;justify-content:flex-end}.table{width:100%;border-collapse:collapse;background:var(--color-bg-secondary);border-radius:8px;overflow:hidden;box-shadow:var(--shadow-sm)}.table th{padding:12px;text-align:left;font-weight:600;color:var(--color-text-secondary);background:var(--color-bg-tertiary);border-bottom:2px solid var(--color-border)}.table td{padding:12px;border-bottom:1px solid var(--color-border-light);color:var(--color-text-primary)}.table tr:hover{background:var(--color-bg-tertiary)}.badge-demo{display:flex;gap:8px;flex-wrap:wrap}.loading-demo{display:flex;flex-direction:column;gap:24px;align-items:center}@media (max-width: 768px){.demo-header h1{font-size:1.75rem}.color-grid,.card-grid{grid-template-columns:1fr}.button-row{flex-direction:column;align-items:stretch}}:root{--color-brand-primary: #177CB0;--color-brand-primary-light: #3A9CD4;--color-brand-primary-dark: #0D6EAA;--color-brand-blue: #10AEFF;--color-brand-blue-light: #5BC7FF;--color-brand-blue-dark: #0E9BE0;--color-success: #52C41A;--color-warning: #FAAD14;--color-error: #FF4D4F;--color-info: #10AEFF;--color-text-primary: #1F2329;--color-text-secondary: #646A73;--color-text-placeholder: #8F959E;--color-border: #DEE0E3;--color-bg-page: #F5F5F5;--color-bg-card: #FFFFFF;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 24px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--font-size-xs: 10px;--font-size-sm: 12px;--font-size-md: 14px;--font-size-lg: 16px;--font-size-xl: 20px;--font-size-xxl: 24px}@media screen and (max-width: 400px){.MuiCard-root,.MuiButton-root{border-radius:var(--radius-md)!important}.MuiTypography-h6{font-size:var(--font-size-lg)!important}.MuiCardContent-root{padding:var(--spacing-sm)!important}}@media screen and (max-width: 375px){.MuiTextField-root{font-size:var(--font-size-sm)!important}.MuiChip-root{font-size:var(--font-size-xs)!important;height:22px!important}}@supports (padding-bottom: env(safe-area-inset-bottom)){.fixed-bottom{padding-bottom:calc(var(--spacing-lg) + env(safe-area-inset-bottom))!important}}html{-webkit-overflow-scrolling:touch;scroll-behavior:smooth}.no-select{-webkit-user-select:none;user-select:none}.wecom-bridge-ready{opacity:1;transition:opacity .3s ease}@tailwind base;@tailwind components;@tailwind utilities;*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}#root{min-height:100vh;max-width:100vw;overflow-x:hidden}.page-transition{animation:page-enter .25s cubic-bezier(.16,1,.3,1)}@keyframes page-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.title-fade{animation:title-fade .15s cubic-bezier(.4,0,.2,1)}@keyframes title-fade{0%{opacity:0}to{opacity:1}}.module-sidebar-enter{animation:module-enter .2s cubic-bezier(.4,0,.2,1)}@keyframes module-enter{0%{opacity:0;transform:translate(-6px)}to{opacity:1;transform:translate(0)}}@media (prefers-reduced-motion: reduce){.page-transition,.title-fade,.module-sidebar-enter{animation:none}}