:root{--primary: #C41E3A;--primary-dark: #8B0000;--gold: #D4A853;--blue: #2563EB;--success: #10B981;--warning: #F59E0B;--error: #EF4444;--bg: #F3F4F6;--surface: #FFFFFF;--text: #111827;--text2: #6B7280;--text3: #9CA3AF;--border: #E5E7EB;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{height:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,SF Pro Text,PingFang SC,sans-serif;-webkit-font-smoothing:antialiased}.page{min-height:100vh;padding-bottom:80px;max-width:480px;margin:0 auto}.tabbar{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;display:flex;justify-content:space-around;align-items:center;height:64px;background:var(--surface);border-top:1px solid var(--border);z-index:100}.tabbar-item{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;color:var(--text3);text-decoration:none;transition:color .2s}.tabbar-item.active{color:var(--primary)}.tabbar-item .icon{font-size:22px}.card{background:var(--surface);border-radius:var(--radius-lg);padding:20px;box-shadow:0 1px 3px #0000000a}.btn{display:flex;align-items:center;justify-content:center;width:100%;height:48px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:16px;font-weight:600;cursor:pointer;transition:transform .1s,opacity .2s}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5}.amount{font-family:SF Mono,Roboto Mono,monospace;font-weight:700}.amount-lg{font-size:32px}.amount-md{font-size:20px}.amount-sm{font-size:14px}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.shimmer{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}