*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--color-primary: #2563eb;--color-primary-light: #3b82f6;--color-primary-lighter: #60a5fa;--color-primary-bg: #eff6ff;--color-primary-dark: #1d4ed8;--color-white: #ffffff;--color-bg: #f1f5f9;--color-card: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-secondary: #64748b;--color-text-light: #94a3b8;--color-success: #10b981;--color-success-bg: #ecfdf5;--color-warning: #f59e0b;--color-danger: #ef4444;--color-info: #6366f1;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05), 0 2px 4px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .06), 0 4px 10px rgba(0, 0, 0, .03);--touch-min: 48px;--text-xs: 12px;--text-sm: 14px;--text-base: 16px;--text-lg: 18px;--text-xl: 20px;--text-2xl: 24px;--text-3xl: 30px}html{font-size:var(--text-base);-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;color:var(--color-text);background-color:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none}img{max-width:100%;height:auto;display:block}button{cursor:pointer;border:none;background:none;font:inherit;color:inherit;min-height:var(--touch-min);min-width:var(--touch-min);display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:var(--radius-md);transition:all .2s ease}button:active{transform:scale(.97)}input,textarea{font:inherit;color:inherit;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:10px 14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;min-height:var(--touch-min);font-size:var(--text-lg)}input:focus,textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-text-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.loading-dots{display:inline-flex;gap:4px;align-items:center}.loading-dots span{width:8px;height:8px;border-radius:50%;background-color:var(--color-text-light);animation:pulse 1.4s ease-in-out infinite both}.loading-dots span:nth-child(1){animation-delay:0s}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;color:var(--color-text-secondary);text-align:center;min-height:200px}.empty-state-icon{font-size:48px;margin-bottom:16px;opacity:.6}.empty-state-text{font-size:var(--text-lg);line-height:1.6}