/*** ESSENTIAL STYLES ***/
.sf-menu, .sf-menu * {
  margin: 0;
  padding: 0;
  list-style: none;
}
.sf-menu {
  line-height: 1.0;
}
.sf-menu ul {
  position: absolute;
  top: -999em;
  width: 13em; /* left offset of submenus need to match (see below) */
}
.sf-menu ul li {
  width: 100%;
}
.sf-menu li:hover {
  visibility: inherit; /* fixes IE7 'sticky bug' */
}
.sf-menu li {
  float: left;
  position: relative;
}
.sf-menu a {
  display: block;
}
.sf-menu li:hover ul, .sf-menu li.sfHover ul {
  left: 0;
  top: 2.4em;
  *top: 2.2em; /* ie6,7 bug */ z-index: 99;
}
ul.sf-menu li:hover li ul, ul.sf-menu li.sfHover li ul {
  top: -999em;
}
ul.sf-menu li li:hover ul, ul.sf-menu li li.sfHover ul {
  left: 15em; /* match ul width */ top: 0;
}
ul.sf-menu li li:hover li ul, ul.sf-menu li li.sfHover li ul {
  top: -999em;
}
ul.sf-menu li li li:hover ul, ul.sf-menu li li li.sfHover ul {
  left: 15em; /* match ul width */ top: 0;
}
/*** arrows **/

/* apply hovers to modern browsers */
.sf-menu ul a:focus > .sf-sub-indicator, .sf-menu ul a:hover > .sf-sub-indicator, .sf-menu ul a:active > .sf-sub-indicator, .sf-menu ul li:hover > a > .sf-sub-indicator, .sf-menu ul li.sfHover > a > .sf-sub-indicator {
  background-position: -10px 0; /* arrow hovers for modern browsers*/ display: none !important
}
/*** shadows for all but IE6 ***/
.sf-shadow ul {
  background: url('../images/superfish-shadow.png') no-repeat bottom right;
  padding: 0 8px 9px 0;
}
.sf-shadow ul.sf-shadow-off {
  background: transparent;
}
.sf-sub-indicator {
  display: none !important
}
/*** 垂直 adding sf-vertical in addition to sf-menu creates a vertical menu ***/
.sf-vertical, .sf-vertical li {
  width: 10em;
}
/* this lacks ul at the start of the selector, so the styles from the main CSS file override it where needed */
.sf-vertical li:hover ul, .sf-vertical li.sfHover ul {
  left: 10em; /* match ul width */
  top: 0;
}
/*** alter arrow directions ***/
.sf-vertical .sf-sub-indicator {
  background-position: -10px 0;
} /* IE6 gets solid image only */
.sf-vertical a > .sf-sub-indicator {
  background-position: 0 0;
} /* use translucent arrow for modern browsers*/
/* hover arrow direction for modern browsers*/
.sf-vertical a:focus > .sf-sub-indicator, .sf-vertical a:hover > .sf-sub-indicator, .sf-vertical a:active > .sf-sub-indicator, .sf-vertical li:hover > a > .sf-sub-indicator, .sf-vertical li.sfHover > a > .sf-sub-indicator {
  background-position: -10px 0; /* arrow hovers for modern browsers*/
}