:root{--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-text:#1f2937;--color-sub:#6b7280;--color-bg:#fff;--color-surface:#f9fafb;--color-border:#e5e7eb;--color-up:#ef4444;--color-up-bg:#fef2f2;--color-down:#2563eb;--color-down-bg:#eff6ff;--radius-btn:10px;--radius-card:14px;--font-family:"Inter", sans-serif;--shadow-card:0 1px 2px #1f29370f, 0 1px 3px #1f293714}*{box-sizing:border-box}html{scrollbar-gutter:stable}html,body{margin:0;padding:0}body{font-family:var(--font-family);background:var(--color-surface);color:var(--color-text);-webkit-font-smoothing:antialiased}#root{min-height:100vh}h1,h2,h3,h4,p{margin:0}button{cursor:pointer;font-family:inherit}a{color:inherit}img{max-width:100%;display:block}.btn{border-radius:var(--radius-btn);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:15px;font-weight:700;transition:background-color .15s,border-color .15s,transform 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