.big_bg{
	width: 100%;
	height: 100%;
	background: url(../images/bg/bg.jpg) repeat center center;
	background-attachment: fixed;
	position: fixed;
	z-index: 1;
}
.triangle_b{
	opacity: 0;
}

.triangle_s {
	position: absolute;
	z-index: 3;
	width: 100%;
	height: 100%;
	background: url(../images/bg/triangle_s.png) no-repeat center center;
	background-attachment: fixed;
	background-size: "2000px 1100px";
	opacity: 0;
}
.triangle_b {
	position: absolute;
	z-index: 3;
	width: 100%;
	height: 100%;
	background: url(../images/bg/triangle_b.png) no-repeat center center;
	background-attachment: fixed;
}

.dot_bg {
	background: url(../images/bg/dot.png);
	background-attachment: fixed;
	width: 100%;
	height: 100%;
	position: fixed;
	z-index: 5;
}
.index,.common_btn.noshow{
	display: none;
}

.intro_mask{
	background: -moz-linear-gradient(top,  rgba(0,0,0,0) 0%, rgba(0,0,0,0.12) 4%, rgba(0,0,0,1) 33%, rgba(0,0,0,1) 68%, rgba(0,0,0,0) 100%); /* FF3.6+ */
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(0,0,0,0)), color-stop(4%,rgba(0,0,0,0.12)), color-stop(33%,rgba(0,0,0,1)), color-stop(68%,rgba(0,0,0,1)), color-stop(100%,rgba(0,0,0,0))); /* Chrome,Safari4+ */
	background: -webkit-linear-gradient(top,  rgba(0,0,0,0) 0%,rgba(0,0,0,0.12) 4%,rgba(0,0,0,1) 33%,rgba(0,0,0,1) 68%,rgba(0,0,0,0) 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(top,  rgba(0,0,0,0) 0%,rgba(0,0,0,0.12) 4%,rgba(0,0,0,1) 33%,rgba(0,0,0,1) 68%,rgba(0,0,0,0) 100%); /* Opera 11.10+ */
	background: -ms-linear-gradient(top,  rgba(0,0,0,0) 0%,rgba(0,0,0,0.12) 4%,rgba(0,0,0,1) 33%,rgba(0,0,0,1) 68%,rgba(0,0,0,0) 100%); /* IE10+ */
	background: linear-gradient(to bottom,  rgba(0,0,0,0) 0%,rgba(0,0,0,0.12) 4%,rgba(0,0,0,1) 33%,rgba(0,0,0,1) 68%,rgba(0,0,0,0) 100%); /* W3C */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#00000000',GradientType=0 ); /* IE6-9 */
	width: 680px;
	height: 145px;
	position: absolute;
	left: 50%;
	margin: -340px;
	top: 50%;
	margin-top: -72px;
}

.intro{
	-webkit-mask-box-image: url(../images/mask.png);
	mask: url(../images/mask.png);
	width: 680px;
	height: 240px;
	margin: 160px auto;
	padding-top: 0;
}
.intro_word{
	position: absolute;
	top: 355px;
}
.intro_word_spark{
	width: 93px;
	height: 70px;
	position: absolute;
	top: 45px;
	right: -40px;
}
.index_word_spark1{
	width: 93px;
	height: 70px;
	position: absolute;
	right: 56px;
	bottom: 5px;
}
.index_word_spark2{
	width: 93px;
	height: 70px;
	position: absolute;
	right: -82px;
	bottom: 5px;
}
.btn_l {
	display: none;
}
.howtodo,.aboutproject,.sparkproject,.z1star{
	display: none;
}
.sparkproject_textarea,.z1star_textarea{
	width: 750px;
	margin: 10px auto;
	line-height: 26px;
	height: 160px;
	text-align: center;
}

.sign_up{
	display: none;
}
.sub_pos .btn_l{
	display: none;
}
.quickmenu_sparkproject{
	cursor: pointer;
}
.pop_guide,.pop_active,.popup_awards,.popup_speaker,.popup_intern{
	display: none;
}
label{
	cursor: pointer;
}
.pop_box,.join_us{
	z-index: 13;
}
.sub_btn1s{
	top: -46px;
	left: -85px;
}
.sub_btn2s{
	top: -48px;
	left: -90px;
}
.sub_btn3s{
	top: -46px;
	left: -97px;
}
.sub_btn4s{
	top: -49px;
	left: -92px;
}
.sub_btn5s{
	top: -46px;
	left: -90px;
}
.sub_btn2l{
	top: -48px;
	left: -90px;
}
.sub_btn3l{
	top: -46px;
	left: -98px;
}
.sub_btn4l{
	top: -49px;
	left: -92px;
}
.sub_btn5l{
	top: -45px;
	left: -90px;
}

/* 立即報名 */
@media screen and (max-height: 780px) {
	.join_us {
		position:absolute;
		width: 670px;
		height: 690px;
		top:0px;
		margin:0px auto;
		left: 50%;
		margin-left: -335px;
		padding-bottom:60px;
	}
	.join_us a.btn_upload{
		position: absolute;
		right: -200px;
		top: 250px;
	}
	.pop_guide{

	}
}

.hover_status{
	display: none;
}
.pop_wrapper,.black_cover{
	z-index: 12;
}