/*public*/
html,body{margin:0;padding:0;}
body ul li{list-style-type:none}
input,img{border:0;outline:none}
html,body{width:100%;height:100%;position: relative;}
article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}
body{font-family: 'Microsoft YaHei', '微软雅黑';color:#fff;font-size: 16px;letter-spacing:1px;word-wrap:break-word;word-break:break-all;height:100%;width: 100%;position: relative;}
body div,body p{margin:0 auto;word-break:normal;}
address,cite,dfn,em,var{font-style:normal}
h1,h2,h3,h4,h5{margin:0;padding:0}
button{border:0;outline:none;padding: 0;margin: 0;}
sup{vertical-align:text-top}
sub{vertical-align:text-bottom}
a{color:#333;text-decoration:none;outline:none}
p{color:#333;font-size: 16px;line-height: 32px;}
p span{color:#ea413d;font-weight: bold}
a:hover{text-decoration:none}
/* list */
ul,ol{list-style:none}
/*
 * Remove text-shadow in selection highlight: h5bp.com/i
 * These selection rule sets have to be separate.
 * Customize the background color to match your design.
 */

::-moz-selection {
    background: #b3d4fc;
    text-shadow: none;
}

::selection {
    background: #b3d4fc;
    text-shadow: none;
}

/*
 * A better looking default horizontal rule
 */

hr {
    display: block;
    height: 1px;
    border: 0;
    border-top: 1px solid #ccc;
    margin: 1em 0;
    padding: 0;
}

/*
 * Remove the gap between images and the bottom of their containers: h5bp.com/i/440
 */

img {
    vertical-align: middle;
}

/*
 * Remove default fieldset styles.
 */

fieldset {
    border: 0;
    margin: 0;
    padding: 0;
}

/*
 * Allow only vertical resizing of textareas.
 */

textarea {
    resize: vertical;
}

/* ==========================================================================
   Chrome Frame prompt
   ========================================================================== */

.chromeframe {
    margin: 0.2em 0;
    background: #ccc;
    color: #fff;
    padding: 0.2em 0;
}

/* ==========================================================================
   Parallax Scroll
   ========================================================================== */
body, html {
	height: 100%;
	min-height: 100%;
	background-color: #fff;
}

#preloader {
	display: none;
	width: 1px;
	height: 1px;
	visibility: none;
}
.no-js {
	padding-top: 106px;
}
h2 {
	margin-top: 0;
}
.loading {
	background: url('../img/loading.gif') no-repeat center center;
}
.loading main {
	background: none;
}
section {
	min-width: 960px;
	opacity: 0;
}
.loaded section,
.no-js section {
	opacity: 1;
  visibility: visible;
 	-webkit-transition: opacity 300ms ease-out;
	-moz-transition: opacity 300ms ease-out;
}
main {
	overflow-x: hidden;
}

.bcg {
	background-position: center center;
	background-repeat: no-repeat;
	background-size: cover;
	height: 100%;
	width: 100%;
	position: fixed;
	top: 0;
	left: 0;
  /* z-index: -10; */
  /* overflow: hidden; */
}
/* Slide 1 */
#bcg {background-image:url('../img/mountain.jpg');}
#titlepng{background-image:url('../img/title.png');}
#intropng {  background-image:url('../img/introduction.png');}
#climberpng {  background-image:url('../img/climber.png');}
#timelinepng {
  background-image:url('../img/timeline_bg.png');
  /* display: none; */
}
#bar_mappng {  background-image:url('../img/bar_map.png');}
/*#fullsize-element{   background-image:url('../img/chooseroute_2.png');}*/
/* Slide 2 */
/* #slide-2 .bcg {background-image:url('../img/img_road.jpg');}
#slide-2 h2  {color: #ffffff;}
#slide-2 p {color: #b2b2b2;} */

/* Slide 3 */
/* #slide-3 {
	-webkit-transition: none;
	-moz-transition: none;
	transition: none;
}
#slide-3 .bcg {background-image:url('../img/img_earth2.jpg');}
#slide-3 h2  {color: #ffffff;}
#slide-3 p {color: #b2b2b2;} */

.homeSlide h2 {
	color: #000000;
	font-size: 45px;
	line-height: 48px;
	margin-bottom: 12px;
	text-align: center;
}
.homeSlide p {
	width: 400px;
	margin: 0 auto;
	color: #b2b2b2;
	text-align: center;
}
.homeSlide a {
	color: #b2b2b2;
	text-decoration: underline;
}

/* ==========================================================================
   Helper classes
   ========================================================================== */

/*
 * Image replacement
 */

.ir {
    background-color: transparent;
    border: 0;
    overflow: hidden;
    /* IE 6/7 fallback */
    *text-indent: -9999px;
}

.ir:before {
    content: "";
    display: block;
    width: 0;
    height: 150%;
}

/*
 * Hide from both screenreaders and browsers: h5bp.com/u
 */

.hidden {
    display: none !important;
    visibility: hidden;
}

/*
 * Hide only visually, but have it available for screenreaders: h5bp.com/v
 */

.visuallyhidden {
    border: 0;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
}

/*
 * Extends the .visuallyhidden class to allow the element to be focusable
 * when navigated to via the keyboard: h5bp.com/p
 */

.visuallyhidden.focusable:active,
.visuallyhidden.focusable:focus {
    clip: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    position: static;
    width: auto;
}

/*
 * Hide visually and from screenreaders, but maintain layout
 */

.invisible {
    visibility: hidden;
}

/*
 * Clearfix: contain floats
 *
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    `contenteditable` attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that receive the `clearfix` class.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 */

.clearfix:before,
.clearfix:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

.clearfix:after {
    clear: both;
}

/*
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */

.clearfix {
    *zoom: 1;
}


.ticks {
    font-size: 10px;
    fill:#6c7175;
  }
  .location text {
  	fill:#6c7175;
  }
  .track,
  .track-inset,
  .track-overlay {
    stroke-linecap: round;
  }

  .track {
    stroke: #7fc2f3;
    /*stroke-opacity: 0.3;*/
    stroke-width: 3px;
  }

  .track-inset {
    stroke: #fff;
    stroke-width: 6px;
  }

  .track-overlay {
    pointer-events: stroke;
    stroke-width: 5px;
    stroke: transparent;
    cursor: crosshair;
  }

  .handle {
      fill: #7fc2f3;
      border: 2px solid #fff;
      border-radius: 10px;

    }

#play-button{
  height: 50px;
  width: 150px;
  position: absolute;
  top:68%;
  left: 50%;
  margin-left: -75px;
  background: linear-gradient(to right top ,#ffefb8 , #bcfcff 80%);
  color:#0080e9;
  font-size: 24px;
}
#play-button:active{
  border: 4px solid #fff;
}

    #vis{
      width: 880px;
      height: 560px;
      position: absolute;
      top:35%;
      left: 50%;
      margin-left: -440px;
      margin-top: -280px;
      background-color: rgba(255,255,255,0.8);
      /* background-color: rgba(0,0,0,0.4); */
      /* opacity: 0.9; */
    }
    /* @media screen and (max-width:1450px){
      #vis{
        height: 450px;
        margin-top: -225px;
      }
    } */

    #mapPics{
      width: 100%;
      height: 60%;
      position: absolute;
      top: 40%;
    }
    #pics{
          height: 100%;
          /* margin: auto; */
          /* position: relative; */
          /* width: 100%;
          position: absolute;
          left: 10%; */
        }

/* 3dclouds */
#viewport,
#viewport .world,
.worldLayer {
  position: absolute;
}

#viewport {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  -webkit-perspective: 600;
          perspective: 600;
  overflow: hidden;
}
#viewport{
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  margin: -300px 0 0 -300px;
  /* overflow-y: scroll;
  overflow-x: hidden; */
}
@media screen and (max-width:1450px){
  #viewport{
    width: 450px;
    height: 450px;
    top: 50%;
    left: 50%;
    margin: -225px 0 0 -225px;
  }
}
.world{
  height: 100%;
  width: 100%;
}
#viewport .world,
#viewport .worldLayer {
  height: 600px;
  width: 600px;
  top: 50%;
  left: 50%;
  margin: -300px 0 0 -300px;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
}

#viewport .worldLayer:after {
  content: "";
  display: block;
  position: absolute;
  top: 20px;
  bottom: 20px;
  left: 20px;
  right: 20px;
}
/* #viewport .cloud,
#viewport .cloudPart {
  position: absolute;
  width: 600px;
  height: 600px;
  margin: 0 -300px -300px 0 ;
  top: 0;
  left: 0;
} */
/* #viewport .cloud {
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  -webkit-animation: cloudRotation 400s infinite linear;
          animation: cloudRotation 400s infinite linear;
}
#viewport .cloud .cloudPart {
  background: url(../img/cloud11.png) no-repeat;
} */
.worldLayer:nth-child(){
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 100%;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
}
.worldLayer:nth-child(2) {
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 100%;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background: url(../img/timeline1.png) no-repeat;
}
.worldLayer:nth-child(4) {
  background: url(../img/timeline2.png) no-repeat;
}
.worldLayer:nth-child(6) {
  background: url(../img/timeline3.png) no-repeat;
}
.worldLayer:nth-child(8) {
  background: url(../img/timeline4.png) no-repeat;
}
.worldLayer:nth-child(10) {
  background: url(../img/timeline5.png) no-repeat;
}
.worldLayer:nth-child(12) {
  background: url(../img/timeline6.png) no-repeat;
}
.worldLayer:nth-child(14) {
  background: url(../img/timeline7.png) no-repeat;
}
.worldLayer:nth-child(16) {
  background: url(../img/timeline8.png) no-repeat;
}
.worldLayer:nth-child(18) {
  background: url(../img/timeline9.png) no-repeat;
}
.worldLayer:nth-child(20) {
  background: url(../img/timeline10.png) no-repeat;
}
.worldLayer:nth-child(22) {
  background: url(../img/timeline11.png) no-repeat;
}
.worldLayer:nth-child(24) {
  background: url(../img/timeline12.png) no-repeat;
}
.worldLayer:nth-child(26) {
  background: url(../img/timeline13.png) no-repeat;
}
.worldLayer:nth-child(28) {
  background: url(../img/timeline14.png) no-repeat;
}

.content {
  position: absolute;
  top: 0;
  left: 0;
  padding: 20px;
  width: 300px;
  font-size: 30px;
  color: #ffffff;
  font-weight: 600;
  -webkit-transform: translate3d(0, 0, 100px);
          transform: translate3d(0, 0, 100px);
}
.content strong {
  font-size: 15px;
  font-weight: 300;
  margin-left: -0.075em;
}

/*3d route map*/
.fullsize-element{
  /*width: 41%;
  margin-left: 18%;
  margin-top: 12%;*/
    background-image:url('../img/chooseroute.png');
   background-position: center center;
   	background-repeat: no-repeat;
   	background-size: cover;
   	height: 638px;
   	width: 1200px;
   	position: absolute;
   	top:50%;
    left: 50%;
    margin-top: -319px;
    margin-left: -600px
}
#s_button{
  background-image: url("../img/s_button.png");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 50px;
  width: 165px;
  top:545px;
  left: 845px;
  position: absolute;
}
#s_button:active{
  background-image: url("../img/s_button_active.png");
}
#n_button:active{
  background-image: url("../img/n_button_active.png");
}
#n_button{
  background-image: url("../img/n_button.png");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 50px;
  width: 165px;
  top:545px;
  left: 1020px;
  position: absolute;

}
#gf {
width: 770px;
/*width: 100%;*/
margin-left: 20px;
margin-top: 25px;
/* margin: 1em auto; */
position: relative;
font-size: 13px; }
#gf img {
  width: 100%; }
#gf .grfxcontainer {
  width: 100%;
  float: left;
  position: relative;
  margin: 0.5em 0; }
#gf .source {
  color: rgba(255,255,255,0.6);
  font-family: "Pragmatica-web", Helvetica, Arial, sans-serif;
  text-transform: uppercase;
  font-size: 14px;
  width: 100%;
  float: left;
  margin-top: 0.75em;
  margin-bottom: 2.5em; }

#gf img {
  width: 100%; }
#gf #map-view-container {
  position: relative;
  width: 100%;
  -webkit-tap-highlight-color: transparent; }
#gf .makeOpaque {
  opacity: 0.4; }
#gf #map-container {
  float: left;
  position: relative;
  width: 100%; }
#gf #map-view-container img.map {
  position: relative;
  z-index: 100; }
#gf #map-view-container img.region {
  display: none;
  left: 0px;
  position: absolute;
  top: 0px;
  z-index: 20;
  -webkit-tap-highlight-color: transparent; }
#gf #map-view-container img.regionBg {
  left: 0px;
  position: absolute;
  top: 0px;
  z-index: 19;
  padding: 0;
  margin: 0; }
#gf .routeOne-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeTwo-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeThree-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeFour-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeFive-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeSix-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeSeven-map {
  margin-left: 0px;
  margin-top: 0; }
#gf .routeEight-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeNine-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeTen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeEleven-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeTwelve-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeThirteen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeFourteen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeFifteen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeSixteen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeSeventeen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeEighteen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeNineteen-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeTwenty-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeTwentyone-map {
  margin-left: 0;
  margin-top: 0; }
#gf .routeTwentytwo-map {
  margin-left: -0;
  margin-top: 0; }
#gf .routeTwentythree-map {
  margin-left: -0;
  margin-top: 0; }
#gf #RedRoutes .letter {
  background: #FC0; }
#gf .indFace {
  z-index: 9998; }
#gf #leftNav {
  width: 30%;
  height: auto;
  margin-top: 0px;
  padding-top: 0px;
  position: absolute;
  z-index: 9999; }

  /*@media screen and (max-width:1450px){
    #gf #leftNav {
        width: 50%;
    }
  }*/
#gf #topBar {
  color: #FFF;
  background-color: #00c1f3;
  font-size: 16px;
  line-height: 40px;
  font-weight: normal;
  height: 40px;
  padding-left: 10px;
  font-weight: bold; }
#gf .listTitle {
  /* background: black; */
  background-color: rgba(0,0,0,0.6);
  margin: 0;
  padding: 0;
  border-bottom: 1px solid #999; }
#gf .h1 {
  font-size: 15px;
  line-height: 30px;
  width: 100%;
  color: #FFF;
  height: 30px;
  padding: 0;
  margin: 0px 0px 0px 10px;
  font-weight: bold; }

#gf .title {
  padding: 2px 0 2px 0; }
#gf .title.last {
  padding-bottom: 15px; }
#gf .h4 {
  font-size: 12px;
  line-height: 14px;
  color: #FFF;
  margin: 0 0 0 10px;
  font-weight: normal;
  width: 100%; }
#gf .selectedH4 {
  color: #FF5100; }
#gf ul.routeList {
  font-size: 12px;
  color: #fff;
  list-style: none;
  margin: 0 0 0 35px;
  padding: 0; }
#gf .letter {
  color: #fff;
  border: 2px solid #fff;
  font-weight: bold;
  background-color: #00b0fc;
  border-radius: 10px;
  text-align: center;
  width: 17px;
  height: 17px;
  float: left;
  margin-right: 6px;
  font-size: 11px;
  padding: 0px 0px 0px 0px; }
#gf .rName {
  line-height: 20px; }
#gf li.firstRow {
  text-transform: uppercase;
  color: #999; }
#gf li.secondRow {
  color: #fff; }

/*一开始的说明*/
#gf #directions {
  width: 40%;
  position: absolute;
  background-image: url('../img/instructions3.png');
  background-repeat: no-repeat;
  background-size: 100% 100%;
  background-origin: content-box;
  z-index: 9999;
  top: 20%;
  left: 30%;
  -webkit-tap-highlight-color: transparent; }
/*小标签*/
#gf #tapRouteLeftDirections {
  position: absolute;
  top: 20%;
  left: 64%;
  background-image: url('https://news.nationalgeographic.com/content/dam/news/2015/04/NewsGraphics/Everest_Routes/tap_a_route_left_small.png');
  background-repeat: no-repeat;
  z-index: 9888;
  width: 226px;
  height: 86px; }
#gf #tapRouteRightDirections {
  position: absolute;
  top: 300px;
  left: 610px;
  background-image: url('https://news.nationalgeographic.com/content/dam/news/2015/04/NewsGraphics/Everest_Routes/tap_a_route_small.png');
  background-repeat: no-repeat;
  z-index: 9888;
  width: 226px;
  height: 81px; }
#gf #video1, #gf #video2, #gf #video3, #gf #video4, #gf #video5, #gf #video6 {
  width: 100%;
  position: absolute;
  display: none;
  top: 0;
  left: 0; }
@media only screen and (min-width: 600px) and (max-width: 1065px) {
  #gf #leftNav {
    width: 25%;
    padding-top: 0px; }
  #gf li.firstRow {
    font-size: 10px; }
  #gf li.secondRow {
    font-size: 12px; }
  #gf #tapRouteRightDirections {
    display: none !important; } }
@media only screen and (max-width: 720px) {
  #gf {
    /*	.title {width:45%; margin:2.5%; float:left; margin-bottom:-0.5em;}
  .list {width:100%; float:left;}
  .listTitle {width:100%; float:left;}*/ }
    #gf #leftNav {
      position: relative;
      width: 100%;
      float: right; }
    #gf .indFace {
      position: relative;
      width: 100%;
      float: right; }
    #gf #directions {
      width: 80%;
      left: 10%; }
    #gf #tapRouteLeftDirections {
      display: none; }
    #gf #tapRouteRightDirections {
      display: none; }
    #gf .video {
      display: none; } }

/* ==========================================================================
   EXAMPLE Media Queries for Responsive Design.
   These examples override the primary ('mobile first') styles.
   Modify as content requires.
   ========================================================================== */

@media only screen and (min-width: 35em) {
    /* Style adjustments for viewports that meet the condition */
}

@media print,
       (-o-min-device-pixel-ratio: 5/4),
       (-webkit-min-device-pixel-ratio: 1.25),
       (min-resolution: 120dpi) {
    /* Style adjustments for high resolution devices */
}

/* ==========================================================================
   Print styles.
   Inlined to avoid required HTTP connection: h5bp.com/r
   ========================================================================== */

@media print {
    * {
        background: transparent !important;
        color: #000 !important; /* Black prints faster: h5bp.com/s */
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]:after {
        content: " (" attr(href) ")";
    }

    abbr[title]:after {
        content: " (" attr(title) ")";
    }

    /*
     * Don't show links for images, or javascript/internal links
     */

    .ir a:after,
    a[href^="javascript:"]:after,
    a[href^="#"]:after {
        content: "";
    }

    pre,
    blockquote {
        border: 1px solid #999;
        page-break-inside: avoid;
    }

    thead {
        display: table-header-group; /* h5bp.com/t */
    }

    tr,
    img {
        page-break-inside: avoid;
    }

    img {
        max-width: 100% !important;
    }
    @page {
        margin: 0.5cm;
    }

    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }

    h2,
    h3 {
        page-break-after: avoid;
    }
}