侧边栏字体间距缩小，禁止滚动

@@ -24,97 +24,6 @@ var start = 0,
 
 lazyLoad($('img.lazy'));
 
-function preventDefault(e) {
-    e = e || window.event;
-    e.preventDefault && e.preventDefault();
-    e.returnValue = false;
-}
-
-function stopPropagation(e){
-    e = e || window.event;
-    e.stopPropagation && e.stopPropagation();
-    e.cancelBubble = false;
-}
-
-/**function innerScroll(e){
-    // 阻止冒泡到document
-    // document上已经preventDefault
-    stopPropagation(e);
-
-    var delta = e.wheelDelta || e.detail || 0;
-    var box = $(this).get(0);
-
-    if($(box).height() + box.scrollTop >= box.scrollHeight){
-        if(delta < 0) {
-            preventDefault(e);
-            return false;
-        }
-    }
-    if(box.scrollTop === 0){
-        if(delta > 0) {
-            preventDefault(e);
-            return false;
-        }
-    }
-    // 会阻止原生滚动
-    // return false;
-}**/
-
-/**var disableScroll = function(){
-    $(document).on('mousewheel', preventDefault);
-    $(document).on('touchmove', preventDefault);
-};
-
-var enableScroll = function(){
-    $(document).off('mousewheel', preventDefault);
-    $(document).off('touchmove', preventDefault);
-};
-
-    // 内部可滚
-$sideNav.on('touchmove mousewheel', stopPropagation);
-
-// 外部禁用
-disableScroll();
-
-
-// 移动端touch重写
-var startX, startY;
-$sideNav.on('touchstart', function(e){
-    startX = e.originalEvent.touches[0].pageX;
-    startY = e.originalEvent.touches[0].pageY;
-});**/
-
-// 仿innerScroll方法
-/**$sideNav.on('touchmove', function(e){
-    e.stopPropagation();
-
-    var deltaX = e.originalEvent.touches[0].pageX - startX;
-    var deltaY = e.originalEvent.touches[0].pageY - startY;
-
-    // 只能纵向滚
-    if(Math.abs(deltaY) < Math.abs(deltaX)){
-        e.preventDefault();
-        return false;
-    }
-
-    var box = $(this).get(0);
-
-    if($(box).height() + box.scrollTop >= box.scrollHeight){
-        if(deltaY < 0) {
-            e.preventDefault();
-            return false;
-        }
-    }
-    if(box.scrollTop === 0){
-        if(deltaY > 0) {
-            e.preventDefault();
-            return false;
-        }
-    }
-    // 会阻止原生滚动
-    // return false;
-});**/
-
 $('.nav-btn').on('touchstart', function(event) {
     $sideNav.css('pointer-events', 'none');
     $mobileWrap.addClass('menu-open');
@@ -124,12 +33,6 @@ $('.nav-btn').on('touchstart', function(event) {
     event.stopPropagation();
     openSideNav = true;
 
-    //设置boy高宽，页面不能上下滑动
-    $('body').css({
-        height: $(window).height(),
-        overflow: 'hidden'
-    });
-
     setTimeout(function() {
         $sideNav.css('pointer-events', 'auto');
     }, 400);
@@ -144,11 +47,6 @@ function hideSideBar() {
         $('.overlay').hide();
         $('.sub-nav').removeClass('show');
         $sideNav.removeClass('on');
-        $('body').css({
-            height: 'auto',
-            overflow: 'auto'
-        });
-        //enableScroll();
     }
 }
 
@@ -157,6 +55,10 @@ $('.overlay').on('touchstart', function(e) {
     return false;
 });
 
+$sideNav.on('touchmove', function(e) {
+    return false;
+});
+
 //点击一级导航，弹出二级导航
 $sideNav.on('touchend', 'li', function(e) {
     if ($(this).find('.sub-nav').size() > 0) {

@@ -14,7 +14,7 @@
     @include transition(all .3s);
 
     > ul {
-        margin-bottom: 20rem / $pxConvertRem;
+        margin-bottom: 16rem / $pxConvertRem;
         background: #fff;
         border-top: 1px solid #e0e0e0;
         border-bottom: 1px solid #e0e0e0;
@@ -22,8 +22,8 @@
 
     li {
         position: relative;
-        height: 80rem / $pxConvertRem;
-        line-height: 80rem / $pxConvertRem;
+        height: 64rem / $pxConvertRem;
+        line-height: 64rem / $pxConvertRem;
         background: #fff;
 
         &:after {
@@ -45,21 +45,23 @@
         a {
             display: block;
             height: 100%;
-            padding-left: 110rem / $pxConvertRem;
+            padding-left: 108rem / $pxConvertRem;
             color: #444;
         }
 
         em {
             font-weight: bold;
-            font-size: 26rem / $pxConvertRem;
+            font-size: 24rem / $pxConvertRem;
         }
 
         .title {
             display: inline-block;
             font-size: 36rem / $pxConvertRem;
             vertical-align: bottom;
+            padding-left: 1rem;
             // 此处字体小于 12px， 先扩大，再scale缩小
             @include transform(scale(0.5));
+            transform-origin: 0 50% 0;
         }
 
         .nav-icon, .nav-img {
@@ -92,8 +94,8 @@
     .first {
 
         li {
-            height: 100rem / $pxConvertRem;
-            line-height: 100rem / $pxConvertRem;
+            height: 80rem / $pxConvertRem;
+            line-height: 80rem / $pxConvertRem;
             border-bottom: 1px solid #e0e0e0;
 
             &:last-child {
@@ -105,7 +107,7 @@
             }
 
             em {
-                font-size: 36rem / $pxConvertRem;
+                font-size: 32rem / $pxConvertRem;
             }
 
             .nav-img, .nav-icon {