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ease-out}.error-icon{display:flex;justify-content:center;margin-bottom:var(--spacing-xl);color:var(--color-error)}.error-title{font-size:var(--font-size-3xl);font-weight:700;color:var(--color-text-primary);margin-bottom:var(--spacing-md)}.error-description{font-size:var(--font-size-lg);color:var(--color-text-secondary);line-height:1.6;margin-bottom:var(--spacing-2xl)}.error-actions{display:flex;gap:var(--spacing-md);justify-content:center;margin-bottom:var(--spacing-xl);flex-wrap:wrap}.error-button{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius-full);font-size:var(--font-size-base);font-weight:600;cursor:pointer;transition:all var(--transition-fast);border:none}.error-button.primary{background:var(--color-primary);color:#fff}.error-button.primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}.error-button.secondary{background:#fff;color:var(--color-text-primary);border:2px solid var(--color-border)}.error-button.secondary:hover{border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-2px)}.error-hint{background:#fff;border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.error-hint p{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.error-hint ul{list-style:none;padding:0}.error-hint li{font-size:var(--font-size-sm);color:var(--color-text-secondary);padding:var(--spacing-xs) 0;position:relative;padding-left:var(--spacing-lg)}.error-hint li:before{content:"•";position:absolute;left:var(--spacing-sm);color:var(--color-primary);font-weight:700}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.error-title{font-size:var(--font-size-2xl)}.error-description{font-size:var(--font-size-base)}.error-actions{flex-direction:column}.error-button{width:100%;justify-content:center}}:root{--color-primary: #00a8e8;--color-primary-dark: #0088c8;--color-primary-light: #4dc9f6;--color-secondary: #003366;--color-accent: #ff6b35;--color-success: #4caf50;--color-warning: #ff9800;--color-error: #f44336;--color-info: #2196f3;--color-text-primary: #1a1a1a;--color-text-secondary: #666666;--color-text-light: #999999;--color-background: #ffffff;--color-background-secondary: #f5f5f5;--color-background-accent: #e3f2fd;--color-border: #e0e0e0;--color-border-light: #f0f0f0;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .15);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .2);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 32px;--font-size-4xl: 40px;--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .35s ease-in-out;--z-index-dropdown: 1000;--z-index-sticky: 1020;--z-index-fixed: 1030;--z-index-modal-backdrop: 1040;--z-index-modal: 1050;--z-index-popover: 1060;--z-index-tooltip: 1070}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:var(--font-size-base);line-height:1.6;color:var(--color-text-primary);background-color:var(--color-background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark)}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit;line-height:inherit}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}@media (max-width: 768px){.container{padding:0 var(--spacing-sm)}}.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}.loading{display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl)}.loading-spinner{width:40px;height:40px;border:3px solid var(--color-border-light);border-top-color:var(--color-primary);border-radius:var(--radius-full);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.fade-in{animation:fadeIn var(--transition-base) ease-in-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.slide-up{animation:slideUp var(--transition-base) ease-out}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.focus-visible:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}