:root{--color-primary: #CC6600;--color-primary-hover: #B35900;--color-bg: #F7F7F5;--color-surface: #FFFFFF;--color-border: #E0E0E0;--color-text: #1A1A1A;--color-text-muted: #6B6B6B;--color-disabled: #B0B0B0}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--color-bg);color:var(--color-text)}button{cursor:pointer;background:var(--color-primary);color:#fff;border:none;padding:10px 16px;border-radius:4px;font-weight:500;transition:background .2s}button:hover{background:var(--color-primary-hover)}button:disabled{background:var(--color-disabled);cursor:not-allowed}a{text-decoration:none;color:inherit}input,textarea,select{font-family:inherit;border:1px solid var(--color-border);padding:8px;border-radius:4px}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #cc66001a}