@import url("https://fonts.googleapis.com/css?family=Arimo:400|Raleway:300,400,700&display=swap");
/* 这一行导入了来自Google Fonts的Arimo和Raleway字体，
并指定了字体的权重（weight）和样式（style）。display=swap告诉浏览器，在字体加载完成前使用默认字体。 */

/* 这段代码定义了网页的整体样式。 */
body {
  font-family: "Raleway", sans-serif;
  color: #fff;
  font-size: 16px;
  line-height: 30px;
  font-weight: 300;
  position: relative;
}

/* 这段代码定义了一个伪元素:before，它在body元素前面插入内容。定位为绝对定位，使其覆盖整个body元素。
背景颜色为黑色的半透明（RGBA颜色表示法），通过opacity属性控制透明度。transition属性定义了背景颜色渐变的过渡效果。z-index属性设置了该元素的层级。 */
body:before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.5);
  visibility: hidden;
  opacity: 0;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
  z-index: 8;
}

/* 将页面的溢出内容隐藏起来，在创建侧边栏或模态框时使用 */
body.offcanvas {
  overflow: hidden;
}

/* 定义了当body元素具有class为"offcanvas"时，伪元素:before的样式。
它将原本隐藏的伪元素显示出来，并设置完全不透明，使其成为一个黑色的半透明遮罩层，常用于模态框背后的遮罩效果。 */
body.offcanvas:before {
  visibility: visible;
  opacity: 1;
}
/* 将页面的背景颜色设置为黑色 */
body, .unslate_co--site-inner {
  background: #000;
}
/* 分别设置了在Firefox和其他浏览器中选中文本时的背景颜色和文字颜色 */
::-moz-selection {
  background: #000;
  color: #fff;
}

::selection {
  background: #000;
  color: #fff;
}
/* 设置了超链接的过渡效果，当鼠标悬停在链接上时，会以0.3秒的时间平滑地改变所有属性 */
a {
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}
/* 移除了超链接的下划线 */
a, a:hover {
  text-decoration: none !important;
}
/* 定义了.unslate_co--site-inner类的元素的样式 */
.unslate_co--site-inner {
  margin-bottom: 400px;
  position: relative;
  width: 100%;
  z-index: 1;
}
/* 定义了一个媒体查询，当屏幕宽度小于等于991.98像素时，将.unslate_co--site-inner类的元素的底部外边距设置为auto，取消之前设置的400像素的外边距。 */
@media (max-width: 991.98px) {
  .unslate_co--site-inner {
    margin-bottom: auto !important;
  }
}
/* 定义了页脚的样式 */
.unslate_co--footer {
  position: fixed !important;
  width: 100%;
  background-color: #191919;
  color: #fff;
  left: 0;
  right: 0;
  bottom: 0px;
  z-index: -1;
  height: 400px;
}
/* 媒体查询，当屏幕宽度小于等于991.98像素时，将页脚的高度设置为自适应，同时取消固定定位，改为相对定位。 */
@media (max-width: 991.98px) {
  .unslate_co--footer {
    height: auto !important;
    position: relative !important;
  }
}
/* 定义了按钮的样式。按钮的字体大小为11像素，边框半径为30像素，
上下左右内边距分别为15像素，字母间距为0.1个字母宽度，文本转换为大写，字体粗细为900。 */
.btn {
  font-size: 11px;
  border-radius: 30px;
  padding-top: 15px;
  padding-bottom: 15px;
  padding-left: 30px;
  padding-right: 30px;
  letter-spacing: .1rem;
  text-transform: uppercase;
  font-weight: 900;
}
/* 定义了按钮在激活和获得焦点状态时的样式。它移除了按钮的轮廓和阴影效果。 */
.btn:active, .btn:focus {
  outline: none;
  -webkit-box-shadow: none;
  box-shadow: none;
}
/* 定义了一个自定义的轻量级按钮样式，具有白色文本和半透明白色边框。在鼠标悬停或点击时，会有一个0.3秒的过渡效果。 */
.btn.btn-outline-pill.btn-custom-light {
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}
/* 定义了当鼠标悬停、点击或获取焦点时，自定义轻量级按钮的边框颜色变为白色。 */
.btn.btn-outline-pill.btn-custom-light:hover, .btn.btn-outline-pill.btn-custom-light:active, .btn.btn-outline-pill.btn-custom-light:focus {
  border-color: #fff;
}
/* 定义了一个具有白色背景的按钮，并且当鼠标悬停在按钮上时，背景颜色变为黑色，文本颜色变为白色。 */
.btn.btn-bg-white--hover:hover {
  background-color: #fff;
  color: #000;
}
/* 这段代码定义了一个遮罩层，宽度和高度都为100%，固定在页面上。它的z-index属性为7100，使其位于其他元素之上。背景颜色为黑色。 */
#unslate_co--overlayer {
  width: 100%;
  height: 100%;
  position: fixed;
  z-index: 7100;
  background: #000;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}
/* 这段代码定义了一个加载动画容器。它的z-index属性为7700，使其位于其他元素之上。它被固定在页面上，并且水平和垂直居中。 */
.site-loader-wrap {
  z-index: 7700;
  position: fixed;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
/* 定义了网站导航栏的样式。它有上下各30像素的内边距，绝对定位在页面上方，左边界对齐。字体粗细为400，z-index属性为1002，使其位于其他元素之上。宽度为100%。 */
.unslate_co--site-nav {
  padding-top: 30px;
  padding-bottom: 30px;
  position: absolute;
  left: 0;
  font-weight: 400;
  z-index: 1002;
  width: 100%;
  top: 0;
}
/* 定义了网站导航栏中的.container类的样式 */
.unslate_co--site-nav .container {
  position: relative;
}
/* 定义了网站导航栏中的.site-logo类的样式。它的z-index属性为99，使其位于其他元素之上 */
.unslate_co--site-nav .site-logo {
  z-index: 99;
}
/* 定义了网站导航栏中的带有.pos-absolute类的.site-logo元素的样式。它被绝对定位，水平居中。 */
.unslate_co--site-nav .site-logo.pos-absolute {
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
}
/* 定义了网站导航栏中的.site-nav-ul-wrap类的样式。 */
.unslate_co--site-nav .site-nav-ul-wrap {
  width: 100%;
  margin: 0 auto;
  z-index: 1;
  position: relative;
}

.unslate_co--site-nav .unslate_co--site-logo {
  font-size: 1.7rem;
  color: #fff;
  font-weight: 700;
}

.unslate_co--site-nav .unslate_co--site-logo span {
  color: rgb(218, 186, 22);
}

/* 将导航菜单居中对齐 */
.unslate_co--site-nav .site-nav-ul, .unslate_co--site-nav .site-nav-ul-none-onepage {
  text-align: center;
}
/* 去除导航菜单的默认样式 */
.unslate_co--site-nav .site-nav-ul, .unslate_co--site-nav .site-nav-ul > li, .unslate_co--site-nav .site-nav-ul-none-onepage, .unslate_co--site-nav .site-nav-ul-none-onepage > li {
  padding: 0;
  margin: 0;
  list-style: none;
}
/* 设置导航菜单项的水平排列方式，以及浮动方向为左右。 */
.unslate_co--site-nav .site-nav-ul > li, .unslate_co--site-nav .site-nav-ul-none-onepage > li {
  text-align: left;
  display: inline-block;
}
/* 设置导航菜单项的内边距、显示方式（块级元素），文字颜色、字体大小和相对定位 */
.unslate_co--site-nav .site-nav-ul > li > a, .unslate_co--site-nav .site-nav-ul-none-onepage > li > a {
  padding: 10px 7px;
  display: block;
  color: #fff;
  font-size: 14px;
  position: relative;
}
/* 为导航菜单项添加一个伪元素 before，用于实现当鼠标悬停在菜单项上时显示的横线效果 */
.unslate_co--site-nav .site-nav-ul > li > a:before, .unslate_co--site-nav .site-nav-ul-none-onepage > li > a:before {
  left: 7px;
  right: 7px;
  content: "";
  position: absolute;
  height: 1px;
  background: #fff;
  bottom: 0;
  width: 0%;
  -webkit-transition: .2s width ease-in-out;
  -o-transition: .2s width ease-in-out;
  transition: .2s width ease-in-out;
}
/* 设置当鼠标悬停在菜单项上时的文本颜色 */
.unslate_co--site-nav .site-nav-ul > li > a:hover, .unslate_co--site-nav .site-nav-ul-none-onepage > li > a:hover {
  color: #fff;
}
/* 当鼠标悬停在菜单项上时伪元素 before 的宽度逐渐扩展，实现悬停效果。 */
.unslate_co--site-nav .site-nav-ul > li > a:hover:before, .unslate_co--site-nav .site-nav-ul-none-onepage > li > a:hover:before {
  width: calc(100% - 14px);
}

.unslate_co--site-nav .site-nav-ul > li > a.active, .unslate_co--site-nav .site-nav-ul-none-onepage > li > a.active {
  position: relative;
}
/* 设置当前选中的菜单项的伪元素 before 的背景颜色和宽度。 */
.unslate_co--site-nav .site-nav-ul > li > a.active:before, .unslate_co--site-nav .site-nav-ul-none-onepage > li > a.active:before {
  color: #fff;
  width: calc(100% - 14px);
}

.unslate_co--site-nav .site-nav-ul > li.has-children, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children {
  position: relative;
}
/* 为有子菜单的菜单项添加相对定位样式 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > ul, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul {
  visibility: hidden;
  opacity: 0;
  z-index: 2;
  position: absolute;
  left: 0;
  top: 100%;
  min-width: 200px;
  background: #fff;
  padding: 20px 0px;
  margin-top: 20px;
  -webkit-box-shadow: 0 15px 30px 0 rgba(0, 0, 0, 0.2);
  box-shadow: 0 15px 30px 0 rgba(0, 0, 0, 0.2);
  -webkit-transition: 0.2s 0s;
  -o-transition: 0.2s 0s;
  transition: 0.2s 0s;
}
/* 设置子菜单项的内外边距、列表样式和行高 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li {
  padding: 0;
  margin: 0;
  list-style: none;
  line-height: 1.5;
}
/* 设置子菜单项的显示方式为块级元素，并注释中提到了触发悬停效果的第二级菜单。 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li {
  display: block;
  /* 2nd level hover*/
}

.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li a, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li a {
  font-size: 14px;
  padding-top: 5px;
  padding-bottom: 5px;
  padding-left: 30px;
  padding-right: 30px;
  display: block;
  color: gray;
}
/* 设置子菜单项在鼠标悬停时的文本颜色、背景颜色和左侧内边距。 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li a:hover, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li a:hover, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li a:hover, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li a:hover {
  color: #000;
  background: #f9f9f9;
  padding-left: 30px;
}

.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children {
  position: relative;
}

.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children > a, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children > a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children > a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children > a {
  position: relative;
}
/* 下一级子菜单的菜单项添加一个位于文本前面的图标 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children > a:before, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children > a:before, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children > a:before, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children > a:before {
  position: absolute;
  content: "\e315";
  font-size: 16px;
  top: 50%;
  color: #000;
  right: 20px;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  font-family: 'icomoon';
}
/* 为下一级子菜单添加样式。它使用绝对定位将子菜单隐藏在主菜单项的旁边，设置了最小宽度、背景颜色、内边距和阴影等样式，并通过过渡效果实现了子菜单的平滑显示和隐藏。 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children > ul, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children > ul, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children > ul, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children > ul {
  z-index: 1;
  visibility: hidden;
  opacity: 0;
  position: absolute;
  left: 0;
  z-index: 22;
  list-style: none;
  top: 0;
  left: 100%;
  min-width: 200px;
  background: #fff;
  padding: 20px 0px;
  margin-top: 20px;
  -webkit-box-shadow: 0 15px 30px 0 rgba(0, 0, 0, 0.2);
  box-shadow: 0 15px 30px 0 rgba(0, 0, 0, 0.2);
  -webkit-transition: 0.2s 0s;
  -o-transition: 0.2s 0s;
  transition: 0.2s 0s;
}

/* 下面两段是用于网站导航栏的样式设计，主要涉及到子菜单的样式。
其中设置了子菜单链接的左右内边距为30像素，鼠标悬浮或点击子菜单项时，改变指针样式，同时显示子菜单并设置过渡延迟为0秒。 */
.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children > .dropdown a, .unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li.has-children > ul a, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children > .dropdown a, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li.has-children > ul a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children > .dropdown a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li.has-children > ul a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children > .dropdown a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li.has-children > ul a {
  padding-left: 30px;
  padding-right: 30px;
}

.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li:hover, .unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li:focus, .unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li:active, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li:hover, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li:focus, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li:active, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li:hover, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li:focus, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li:active, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li:hover, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li:focus, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li:active {
  cursor: pointer;
}

.unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li:hover > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li:focus > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > .dropdown > li:active > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li:hover > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li:focus > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children > ul > li:active > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li:hover > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li:focus > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > .dropdown > li:active > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li:hover > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li:focus > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children > ul > li:active > .dropdown {
  -webkit-transition-delay: 0s;
  -o-transition-delay: 0s;
  transition-delay: 0s;
  margin-top: 0px;
  visibility: visible;
  opacity: 1;
}

/* 设置了当鼠标悬浮或点击具有子菜单的菜单项时，将鼠标指针样式设置为“手型”。 */
.unslate_co--site-nav .site-nav-ul > li.has-children:hover, .unslate_co--site-nav .site-nav-ul > li.has-children:focus, .unslate_co--site-nav .site-nav-ul > li.has-children:active, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children:hover, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children:focus, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children:active {
  cursor: pointer;
}
/* 设置了当鼠标悬浮或点击具有子菜单的菜单项时，显示其子菜单并设置过渡延迟为0秒，同时将其顶部外边距设置为0、可见性设置为可见、透明度设置为1。 */
.unslate_co--site-nav .site-nav-ul > li.has-children:hover > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children:focus > .dropdown, .unslate_co--site-nav .site-nav-ul > li.has-children:active > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children:hover > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children:focus > .dropdown, .unslate_co--site-nav .site-nav-ul-none-onepage > li.has-children:active > .dropdown {
  -webkit-transition-delay: 0s;
  -o-transition-delay: 0s;
  transition-delay: 0s;
  margin-top: 0px;
  visibility: visible;
  opacity: 1;
}

.unslate_co--site-nav .site-nav-ul > li.active > a, .unslate_co--site-nav .site-nav-ul-none-onepage > li.active > a {
  position: relative;
}
/* 设置了当前处于活动状态的菜单项链接前面加上一个伪元素，在该伪元素上设置了颜色为白色，并且宽度为除去左右两侧内边距之后的宽度 */
.unslate_co--site-nav .site-nav-ul > li.active > a:before, .unslate_co--site-nav .site-nav-ul-none-onepage > li.active > a:before {
  color: #fff;
  width: calc(100% - 40px);
}
/* 菜单的样式，包括显示为块级元素、相对定位、宽度为36px、旋转角度为0度、过渡时间为0.5秒等。 */
.unslate_co--site-nav .burger-toggle-menu {
  display: block;
  width: 36px;
  position: relative;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  -ms-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .5s ease-in-out;
  -moz-transition: .5s ease-in-out;
  -o-transition: .5s ease-in-out;
  transition: .5s ease-in-out;
  cursor: pointer;
  z-index: 99;
}
/* 菜单的三条水平线的样式，包括显示为块级元素、绝对定位、高度为2px、宽度为100%、背景为白色、边框半径为0px、透明度为1等。 */
.unslate_co--site-nav .burger-toggle-menu span {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 0px;
  opacity: 1;
  left: 0;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  -ms-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .25s ease-in-out;
  -moz-transition: .25s ease-in-out;
  -o-transition: .25s ease-in-out;
  transition: .25s ease-in-out;
}
/* 分别定义了菜单的第一/二/三条水平线的位置和旋转中心，以及鼠标悬浮时的旋转效果。 */
.unslate_co--site-nav .burger-toggle-menu span:nth-child(1) {
  top: 0px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  -ms-transform-origin: left center;
  transform-origin: left center;
}

.unslate_co--site-nav .burger-toggle-menu span:nth-child(2) {
  top: 10px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  -ms-transform-origin: left center;
  transform-origin: left center;
}

.unslate_co--site-nav .burger-toggle-menu span:nth-child(3) {
  top: 20px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  -ms-transform-origin: left center;
  transform-origin: left center;
}

.unslate_co--site-nav .burger-toggle-menu.open span:nth-child(1) {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
  top: -3px;
  left: 0;
}

.unslate_co--site-nav .burger-toggle-menu.open span:nth-child(2) {
  width: 0%;
  opacity: 0;
}

.unslate_co--site-nav .burger-toggle-menu.open span:nth-child(3) {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  transform: rotate(-45deg);
  top: 23px;
  left: 0;
}
/* 当导航栏处于滚动状态时应用的类 */
.unslate_co--site-nav.scrolled {
  position: fixed;
  right: 0;
  left: 0;
  top: 0;
  margin-top: -130px;
  background: #fff !important;
  -webkit-box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
  padding-top: 5px;
  padding-bottom: 5px;
}
/* 接下来是一系列样式，它们会在导航栏滚动时改变导航栏中的特定元素的外观，为了在用户滚动页面时改变导航栏的样式，使其更为突出 */
.unslate_co--site-nav.scrolled .burger-toggle-menu {
  top: 10px;
}

.unslate_co--site-nav.scrolled .burger-toggle-menu span {
  background: #000;
}

.unslate_co--site-nav.scrolled .unslate_co--site-logo {
  color: #000;
}

.unslate_co--site-nav.scrolled .site-nav-ul, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage {
  text-align: center;
}

.unslate_co--site-nav.scrolled .site-nav-ul, .unslate_co--site-nav.scrolled .site-nav-ul > li, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li {
  padding: 0;
  margin: 0;
  list-style: none;
}

.unslate_co--site-nav.scrolled .site-nav-ul > li, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li {
  text-align: left;
  display: inline-block;
}

.unslate_co--site-nav.scrolled .site-nav-ul > li > a, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li > a {
  display: block;
  color: #000;
}

.unslate_co--site-nav.scrolled .site-nav-ul > li > a:hover, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li > a:hover {
  color: rgb(212,175,55);
}

.unslate_co--site-nav.scrolled .site-nav-ul > li > a:before, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li > a:before {
  background: #fff;
}

.unslate_co--site-nav.scrolled .site-nav-ul > li > a.active, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li > a.active {
  color: rgb(212,175,55);
}

.unslate_co--site-nav.scrolled .site-nav-ul > li > a.active:before, .unslate_co--site-nav.scrolled .site-nav-ul-none-onepage > li > a.active:before {
  background: #fff;
}

.unslate_co--site-nav.scrolled.awake {
  margin-top: 0px;
  -webkit-transition: .3s all ease-out;
  -o-transition: .3s all ease-out;
  transition: .3s all ease-out;
}
/* 为了让导航栏在用户滚动页面时从原始位置向上移动，并在过渡期间采用缓慢的动画效果。
awake 类表示导航栏已经醒来，滚动事件已经触发，顶部外边距设置为 0 像素，过渡效果的持续时间为 0.3 秒，
sleep 类则表示导航栏处于休眠状态，未被滚动事件触发。 */
.unslate_co--site-nav.scrolled.sleep {
  -webkit-transition: .3s all ease-out;
  -o-transition: .3s all ease-out;
  transition: .3s all ease-out;
}

/* Mobile nav */
.unslate_co--site-mobile-menu {
  position: fixed;
  z-index: 1009;
  height: 100vh;
  background: #fff;
  width: 280px;
  overflow: auto;
  padding-top: 30px;
  padding-bottom: 70px;
  width: 280px;
  left: 0;
  -webkit-transform: translateX(-100%);
  -ms-transform: translateX(-100%);
  transform: translateX(-100%);/* 使用 CSS 变换将导航栏沿 X 轴向左平移 100% 的宽度，即完全超出页面显示范围 */
  -webkit-transition: 1s -webkit-transform cubic-bezier(0.23, 1, 0.32, 1);
  transition: 1s -webkit-transform cubic-bezier(0.23, 1, 0.32, 1);
  -o-transition: 1s transform cubic-bezier(0.23, 1, 0.32, 1);
  transition: 1s transform cubic-bezier(0.23, 1, 0.32, 1);/* 添加一个持续时间为 1 秒的过渡效果，使导航栏在打开或关闭时以平滑的方式移动。 */
  transition: 1s transform cubic-bezier(0.23, 1, 0.32, 1), 1s -webkit-transform cubic-bezier(0.23, 1, 0.32, 1);
}
/* 在 .offcanvas 类被应用于导航栏时生效，通过 CSS 变换将导航栏沿 X 轴向右平移 0% 的宽度，即将其移回页面显示范围内。这在打开移动端导航菜单时使用*/
.offcanvas .unslate_co--site-mobile-menu {
  -webkit-transform: translateX(0%);
  -ms-transform: translateX(0%);
  transform: translateX(0%);
}
/* 设置了关闭按钮的样式 */
.unslate_co--site-mobile-menu .close-wrap {
  margin-right: 20px;
  position: relative;
}

.unslate_co--site-mobile-menu .close-wrap a {
  margin-right: 15px;
}

.unslate_co--site-mobile-menu .close-wrap a:hover {
  opacity: .5;
}

.unslate_co--site-mobile-menu .close-wrap a .close-label {
  margin-right: 20px;
  color: #000;
}

.unslate_co--site-mobile-menu .close-wrap a .close-times {
  position: relative;
  margin-top: 4px;
  right: 0;
}

.unslate_co--site-mobile-menu .close-wrap a .close-times .bar1, .unslate_co--site-mobile-menu .close-wrap a .close-times .bar2 {
  width: 2px;
  height: 20px;
  background: #000;
  position: absolute;
}
/* 分别设置了两个竖条的旋转角度，使它们显现为 X 形状的关闭按钮 */
.unslate_co--site-mobile-menu .close-wrap a .close-times .bar1 {
  -webkit-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}

.unslate_co--site-mobile-menu .close-wrap a .close-times .bar2 {
  -webkit-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

.unslate_co--site-mobile-menu ul, .unslate_co--site-mobile-menu ul li {
  padding: 0;
  margin: 0;
  position: relative;
}

.unslate_co--site-mobile-menu ul a, .unslate_co--site-mobile-menu ul li a {
  position: relative;
  display: block;/* 将链接转换成块级元素，使它们占据整行的宽度 */
  padding-top: 10px;
  padding-bottom: 10px;
  padding-left: 20px;
  padding-right: 20px;
  color: #000;
}
/* 设置了鼠标悬停在链接上时的样式 */
.unslate_co--site-mobile-menu ul a:hover, .unslate_co--site-mobile-menu ul li a:hover {
  color: rgb(212,175,55);
}
.unslate_co--site-mobile-menu ul > li > ul > li > a {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  padding-top: 5px;
  padding-bottom: 5px;
}
/* 设置了移动端导航菜单中带有子菜单的列表项及其子菜单项的样式。
它使用了两个选择器分别选择了直接包含在 ul 元素下的第二层 li 元素以及它们的子元素 a 元素，然后设置了它们的位置、内边距、字体大小和上下内边距。 */
.unslate_co--site-mobile-menu ul > li > ul > li > ul > li > a {
  position: relative;
  padding-left: 50px;
  font-size: 14px;
  padding-top: 5px;
  padding-bottom: 5px;
}
/* 设置了带有子菜单的列表项的箭头图标的样式。具体来说，它使用了一个选择器选择了直接包含在 ul 元素下的第一层 li 元素，
并且该 li 元素是一个带有子菜单的列表项（即具有 .has-children 类），
然后选择了该 li 元素下的类名为 .arrow-collapse 的元素，并设置了它的位置、宽度、高度、文本居中、鼠标样式和边框半径。 */
.unslate_co--site-mobile-menu ul > li.has-children .arrow-collapse {
  position: absolute;
  right: 10px;
  top: 0px;
  z-index: 20;
  width: 45px;
  height: 45px;
  text-align: center;
  cursor: pointer;
  border-radius: 50%;
}
/* 使用了一个选择器选择了带有子菜单的列表项的箭头图标元素 */
.unslate_co--site-mobile-menu ul > li.has-children .arrow-collapse:before {
  font-size: 11px !important;
  z-index: 20;
  font-family: "icomoon";
  content: "\f078";
  position: absolute;
  top: 50%;
  left: 50%;
  color: #000;
  -webkit-transform: translate(-50%, -50%) rotate(-180deg);
  -ms-transform: translate(-50%, -50%) rotate(-180deg);
  transform: translate(-50%, -50%) rotate(-180deg);
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}
/* 用了一个选择器选择了带有子菜单的列表项的箭头图标元素，并且该箭头图标元素的父元素具有 .collapsed 类（即子菜单收起状态），
然后将其旋转角度恢复为默认状态，使得箭头图标垂直朝上。 */
.unslate_co--site-mobile-menu ul > li.has-children .arrow-collapse.collapsed:before {
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
/* 用于定位子菜单箭头的位置 */
.unslate_co--site-mobile-menu ul > li.has-children > ul > li.has-children .arrow-collapse {
  top: -10px;
}

.cover-v1 {
  background-size: cover;
  background-position: center center;
  background-repeat: repeat;
  width: 100%;
}

.cover-v1.gradient-bottom-black {
  position: relative;
}

.cover-v1.gradient-bottom-black:before {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  content: "";
  background: rgba(0, 0, 0, 0);
  background: -moz-linear-gradient(top, rgba(0, 0, 0, 0) 79%, rgba(0, 0, 0, 0.05) 80%, black 100%);
  background: -webkit-gradient(left top, left bottom, color-stop(79%, rgba(0, 0, 0, 0)), color-stop(80%, rgba(0, 0, 0, 0.05)), color-stop(100%, black));
  background: -webkit-linear-gradient(top, rgba(0, 0, 0, 0) 79%, rgba(0, 0, 0, 0.05) 80%, black 100%);
  background: -o-linear-gradient(top, rgba(0, 0, 0, 0) 79%, rgba(0, 0, 0, 0.05) 80%, black 100%);
  background: -ms-linear-gradient(top, rgba(0, 0, 0, 0) 79%, rgba(0, 0, 0, 0.05) 80%, black 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(79%, rgba(0, 0, 0, 0)), color-stop(80%, rgba(0, 0, 0, 0.05)), to(black));
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 79%, rgba(0, 0, 0, 0.05) 80%, black 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#000000', GradientType=0 );
}
/* 设置了渐变颜色和渐变方式 */

/* 设置封面的覆盖层的样式 */
.cover-v1.overlay {
  position: relative;
}
/* 伪类用于创建覆盖层的半透明黑色背景 */
.cover-v1.overlay:before {
  z-index: 9;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  content: "";
  background: rgba(0, 0, 0, 0.4);
}

.cover-v1.overlay .mbYTP_wrapper {
  z-index: -1;
}
/* 用于设置封面内容容器的样式 */
.cover-v1 .container {
  z-index: 9;
  position: relative;
}

.cover-v1 .container, .cover-v1 .container > .row {
  height: 100vh;
  min-height: 650px;
}
/* 以下都是用于设置各种各样标题的样式 */
.cover-v1 .heading {
  font-size: 5rem;
  font-weight: 900;
  color: #fff;
}

@media (max-width: 991.98px) {
  .cover-v1 .heading {
    font-size: 3rem;
  }
}

.cover-v1 .blog-heading {
  font-weight: 900;
  color: #fff;
  font-size: 4rem;
}

@media (max-width: 991.98px) {
  .cover-v1 .blog-heading {
    font-size: 2rem;
  }
}

.cover-v1 .post-meta {
  font-size: 18px;
}

.cover-v1 .subheading {
  font-size: 33px;
  color: #fff;
}

@media (max-width: 991.98px) {
  .cover-v1 .subheading {
    font-size: 24px;
  }
}


/* 定义了一个鼠标滚动指示器的包裹元素的样式 */
.mouse-wrap {
  position: relative;
  display: inline-block;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  bottom: 50px;
  z-index: 9;
}
/* 定义了在鼠标滚动指示器被激活或聚焦时，去掉其外观轮廓 */
.mouse-wrap:active, .mouse-wrap:active > .mouse-label, .mouse-wrap:focus, .mouse-wrap:focus > .mouse-label {
  outline: none;
}

.mouse-wrap.mouse-with-slider {
  bottom: -50px;
}
/* 定义了鼠标滚动指示器的标签样式 */
.mouse-wrap .mouse-label {
  top: 0;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .05rem;
  text-transform: uppercase;
}

.mouse-wrap.dark .mouse-label {
  color: #000;
}

.mouse-wrap.dark .mouse {
  border: 2px solid #000;
}

.mouse-wrap.dark .mouse .scroll {
  background: #000;
}

.mouse-wrap .mouse {
  position: absolute;
  width: 22px;
  height: 42px;
  bottom: 30px;
  display: block;
  left: 50%;
  margin-left: -12px;
  border-radius: 15px;
  border: 2px solid #fff;
  -webkit-animation: intro 2s;
  animation: intro 2s;
}

.mouse-wrap .mouse .scroll {
  display: block;
  width: 3px;
  height: 3px;
  margin: 6px auto;
  border-radius: 4px;
  background: #fff;
  -webkit-animation: finger 2s infinite;
  animation: finger 2s infinite;
}

/* 在指定时间内使元素产生平滑的过渡效果 动画关键帧*/
@-webkit-keyframes intro {
  0% {
    opacity: 0;
    -webkit-transform: translateY(40px);
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}

@keyframes intro {
  0% {
    opacity: 0;
    -webkit-transform: translateY(40px);
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}

@-webkit-keyframes finger {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    -webkit-transform: translateY(20px);
    transform: translateY(20px);
  }
}

@keyframes finger {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    -webkit-transform: translateY(20px);
    transform: translateY(20px);
  }
}

.hero-slider-wrap {
  position: relative;
}

.grid-item {
  position: relative;
}

.grid-item:before {
  content: '';
  display: inline-block;
  padding-top: 20rem;
}

.grid-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  -o-object-fit: cover;
  object-fit: cover;
}

.blog-item {
  position: relative;
}

.blog-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  -o-object-fit: cover;
  object-fit: cover;
}

.portfolio-item {
  overflow: hidden;
}

.portfolio-item img {
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
  position: relative;
  -webkit-transform: scale(1);
  -ms-transform: scale(1);
  transform: scale(1);
}

.portfolio-item:hover img {
  -webkit-transform: scale(1.09);
  -ms-transform: scale(1.09);
  transform: scale(1.09);
}

.portfolio-item, .blog-item {
  display: block;
  overflow: hidden;
  position: relative;
}
/* 设置一个相对定位的遮罩层，初始时透明度为0，不可见，具有过渡效果 */
.portfolio-item .overlay, .blog-item .overlay {
  position: relative;
  z-index: 8;
  opacity: 0;
  visibility: hidden;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.portfolio-item .overlay, .portfolio-item .overlay:before, .blog-item .overlay, .blog-item .overlay:before {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.portfolio-item .overlay:before, .blog-item .overlay:before {
  background: rgba(0, 0, 0, 0.5);
  content: "";
}

.portfolio-item .wrap-icon, .blog-item .wrap-icon {
  position: absolute;
  right: 20px;
  color: #fff;
  top: 20px;
}

.portfolio-item .portfolio-item-content, .blog-item .portfolio-item-content {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
}

.portfolio-item .portfolio-item-content h3, .portfolio-item .portfolio-item-content p, .blog-item .portfolio-item-content h3, .blog-item .portfolio-item-content p {
  color: #fff;
  margin: 0;
  padding: 0;
}

.portfolio-item .portfolio-item-content h3, .blog-item .portfolio-item-content h3 {
  font-size: 18px;
}

.portfolio-item .portfolio-item-content p, .blog-item .portfolio-item-content p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-family: "Arimo", sans-serif;
}

.portfolio-item:hover .overlay, .blog-item:hover .overlay {
  opacity: 1;
  visibility: visible;
}

.blog-item {
  margin-left: 0 !important;
}

.blog-item .overlay {
  opacity: 1;
  visibility: visible;
}

.blog-item:hover .overlay {
  opacity: 0;
  visibility: hidden;
}

.filter-wrap {
  position: relative;
}

.filter-wrap .filter {
  font-size: 14px;
  color: #fff;
}

.filter-wrap .filter a {
  margin-left: 10px;
  color: rgba(255, 255, 255, 0.5);
}

.filter-wrap .filter a:hover {
  color: #fff;
}

.filter-wrap .filter a.active {
  color: #fff;
}
/* 媒体查询内部的样式定义了.filter-wrap .filter元素的样式，包括了背景、位置、过渡效果、阴影等。 
.filter-wrap .filter.active 的样式调整了过滤器的透明度和可见性，使其在小屏幕下能够显示出来 */
@media (max-width: 991.98px) {
  .filter-wrap .filter {
    background: #000;
    z-index: 9;
    position: absolute;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    -webkit-transition: .3s all ease;
    -o-transition: .3s all ease;
    transition: .3s all ease;
    right: 0;
    padding: 20px;
    top: 10px;
    -webkit-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.2);
    box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.2);
    border-radius: 4px;
  }
  .filter-wrap .filter.active {
    opacity: 1;
    visibility: visible;
  }
  .filter-wrap .filter a {
    display: block;
  }
}

/* Isotope Transitions使用 Isotope 插件进行网格布局时产生平滑的过渡效果：
设置过渡动画时间为0.8秒，以及过渡属性为元素的高度和宽度
设置过渡动画时间为0.8秒，以及过渡属性为元素的旋转和透明度
------------------------------- */
.isotope,
.isotope .item {
  -webkit-transition-duration: 0.8s;
  -moz-transition-duration: 0.8s;
  -ms-transition-duration: 0.8s;
  -o-transition-duration: 0.8s;
  transition-duration: 0.8s;
}

.isotope {
  -webkit-transition-property: height, width;
  -moz-transition-property: height, width;
  -ms-transition-property: height, width;
  -o-transition-property: height, width;
  transition-property: height, width;
}

.isotope .item {
  -webkit-transition-property: -webkit-transform, opacity;
  -moz-transition-property: -moz-transform, opacity;
  -ms-transition-property: -ms-transform, opacity;
  -o-transition-property: top, left, opacity;
  -webkit-transition-property: opacity, -webkit-transform;
  transition-property: opacity, -webkit-transform;
  -o-transition-property: transform, opacity;
  transition-property: transform, opacity;
  transition-property: transform, opacity, -webkit-transform;
}

.unslate_co--section {
  padding: 3.5rem 0;
}

@media (max-width: 767.98px) {
  .unslate_co--section {
    padding: 2rem 0;
  }
}

.unslate_co--section a:hover {
  color: #fff;
}
/* 使得网页中的 section 元素具有一致的内边距，并且链接在悬停时会改变文字颜色为白色。在小屏幕上，内边距会相应地减少，以提供更好的视觉效果 */

.heading-h2 {
  font-size: 32px;
  color: #fff;
  font-weight: 900;
}
/* 在带有类名 "divider" 的标题前添加一个装饰性的分隔线。 */
.heading-h2.divider:before {
  position: absolute;
  content: "";
}

.heading-h3 {
  font-size: 26px;
  font-weight: 900;
  color: #fff;
}

.lead {
  font-size: 18px;
  line-height: 30px;
}

.relative {
  position: relative;
}
/* 设置了带有背景点状图案的图像容器 */
figure.dotted-bg {
  position: relative;
}
/* 伪元素用于在图像容器的底部和右侧添加点状图案 */
figure.dotted-bg:before {
  z-index: -1;
  content: "";
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 268px;
  height: 224px;
  background-image: url("../images/dotted_light.png");
  background-repeat: no-repeat;
}

@media (max-width: 991.98px) {
  figure.dotted-bg:before {
    right: 0px;
  }
}

/* 接下来的v1v2v3v4定义了几个不同的网格系统样式以适应不同的设计需求和屏幕尺寸 */
.gutter-v1 {
  margin-right: -1px !important;
  margin-left: -1px !important;
}

@media (max-width: 991.98px) {
  .gutter-v1 {
    margin-left: -15px !important;
    margin-right: -15px !important;
  }
}

.gutter-v1 > .col,
.gutter-v1 > [class*="col-"] {
  padding-right: 1px !important;
  padding-left: 1px !important;
}

@media (max-width: 991.98px) {
  .gutter-v1 > .col,
  .gutter-v1 > [class*="col-"] {
    padding-right: 15px !important;
    padding-left: 15px !important;
  }
}

.gutter-v2 {
  margin-right: -2px !important;
  margin-left: -2px !important;
}

@media (max-width: 991.98px) {
  .gutter-v2 {
    margin-left: -15px !important;
    margin-right: -15px !important;
  }
}

.gutter-v2 > .col,
.gutter-v2 > [class*="col-"] {
  margin-bottom: 4px;
  padding-right: 2px !important;
  padding-left: 2px !important;
}

@media (max-width: 991.98px) {
  .gutter-v2 > .col,
  .gutter-v2 > [class*="col-"] {
    padding-right: 15px !important;
    padding-left: 15px !important;
  }
}

.gutter-v3 {
  margin-left: -60px !important;
  margin-right: -60px !important;
}

@media (max-width: 991.98px) {
  .gutter-v3 {
    margin-left: -15px !important;
    margin-right: -15px !important;
  }
}

.gutter-v3 > .col,
.gutter-v3 > [class*="col-"] {
  padding-right: 60px !important;
  padding-left: 60px !important;
}

@media (max-width: 991.98px) {
  .gutter-v3 > .col,
  .gutter-v3 > [class*="col-"] {
    padding-right: 15px !important;
    padding-left: 15px !important;
  }
}

.gutter-v4 {
  margin-right: -10px !important;
  margin-left: -10px !important;
}

.gutter-v4 > .col,
.gutter-v4 > [class*="col-"] {
  margin-bottom: 20px;
  padding-right: 10px !important;
  padding-left: 10px !important;
}

.gutter-isotope-item {
  margin-right: -15px !important;
  margin-left: -15px !important;
}

@media (max-width: 991.98px) {
  .gutter-isotope-item {
    margin-left: -15px !important;
    margin-right: -15px !important;
  }
}

.gutter-isotope-item > .col,
.gutter-isotope-item > [class*="col-"] {
  padding-right: 15px !important;
  padding-left: 15px !important;
}

@media (max-width: 991.98px) {
  .gutter-isotope-item > .col,
  .gutter-isotope-item > [class*="col-"] {
    padding-right: 15px !important;
    padding-left: 15px !important;
  }
}

.isotope-mb-2 {
  margin-bottom: 30px !important;
}

.feature-v1 {
  line-height: 28px;
}

@media (max-width: 767.98px) {
  .feature-v1 {
    text-align: center;
  }
}

.feature-v1 h3 {
  font-size: 22px;
  font-weight: 900;
}

.feature-v1 p {
  font-size: 16px;
}

.counter-v1 .number-wrap {
  display: block;
}

.counter-v1 .number-wrap .number {
  font-size: 69px;
  font-weight: 900;
  font-family: "Arimo", sans-serif;
  color: rgb(212,175,55);
}

.counter-v1 .number-wrap .append-text {
  position: relative;
  top: -30px;
  font-size: 28px;
  font-weight: 900;
}

.counter-v1 .counter-label {
  text-transform: uppercase;
  letter-spacing: .1rem;
  font-size: 11px;
  font-weight: 900;
}
/* 下面是设置名言的样式 */
.testimonial-v1 {
  text-align: center;
  z-index: 9;
}
/* 用于设置名言的内容背景 */
.testimonial-v1 .testimonial-inner-bg {
  padding: 50px;
  padding-bottom: 70px;
  background-color: #212121;
  text-align: center;
  font-size: 20px;
  line-height: 40px;
  position: relative;
  z-index: 1;
  -webkit-box-shadow: 0px 30px 0 -20px  rgb(212,175,55);
  box-shadow: 0px 30px 0 -20px rgb(212,175,55);
}

@media (max-width: 991.98px) {
  .testimonial-v1 .testimonial-inner-bg {
    font-size: 16px;
    line-height: 32px;
    padding: 30px 30px 50px 30px;
  }
}

.testimonial-v1 .testimonial-inner-bg .quote {
  display: block;
  font-size: 80px;
  font-family: 'Georgia', serif;
}

.testimonial-v1 .testimonial-author-info {
  z-index: 2;
  margin-top: -45px;
  position: relative;
}

.testimonial-v1 .testimonial-author-info img {
  width: 90px;
  margin: 0 auto 30px auto;
  border-radius: 50%;
}

.testimonial-v1 .testimonial-author-info h3 {
  font-size: 20px;
  margin: 0;
}

.testimonial-v1 .testimonial-author-info .position {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}
/* 设置了溢出隐藏，以确保内容在范围内显示。 */
.testimonial-slider .owl-stage, .single-slider .owl-stage {
  overflow: hidden;
}

@media (max-width: 991.98px) {
  .testimonial-slider .owl-nav, .single-slider .owl-nav {
    display: none;
  }
}

.testimonial-slider .owl-nav .owl-prev,
.testimonial-slider .owl-nav .owl-next, .single-slider .owl-nav .owl-prev,
.single-slider .owl-nav .owl-next {
  position: absolute;
  bottom: -70px;
  z-index: 99;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  color: #fff !important;
}

.testimonial-slider .owl-nav .owl-prev span,
.testimonial-slider .owl-nav .owl-next span, .single-slider .owl-nav .owl-prev span,
.single-slider .owl-nav .owl-next span {
  font-size: 30px;
}

.testimonial-slider .owl-nav .owl-prev:hover,
.testimonial-slider .owl-nav .owl-next:hover, .single-slider .owl-nav .owl-prev:hover,
.single-slider .owl-nav .owl-next:hover {
  color: #fff;
}

.testimonial-slider .owl-nav .owl-prev:active, .testimonial-slider .owl-nav .owl-prev:focus,
.testimonial-slider .owl-nav .owl-next:active,
.testimonial-slider .owl-nav .owl-next:focus, .single-slider .owl-nav .owl-prev:active, .single-slider .owl-nav .owl-prev:focus,
.single-slider .owl-nav .owl-next:active,
.single-slider .owl-nav .owl-next:focus {
  outline: none;
}
/* 用于设置轮播图左侧箭头的位置 */
.testimonial-slider .owl-nav .owl-prev, .single-slider .owl-nav .owl-prev {
  left: 60px;
}

.testimonial-slider .owl-nav .owl-next, .single-slider .owl-nav .owl-next {
  right: 60px;
}
/* .testimonial-slider .owl-dots和.single-slider .owl-dots是两个选择器，分别用于指定两种不同类型的轮播图中的小圆点。 */
.testimonial-slider .owl-dots, .single-slider .owl-dots {
  position: absolute;
  width: 100%;
  text-align: center;
  bottom: 50px;
}
/* 表示将小圆点设置为内联块元素（可以在一行内并排排列） */
.testimonial-slider .owl-dots .owl-dot, .single-slider .owl-dots .owl-dot {
  display: inline-block;
}
/* 设置小圆点的颜色、大小和渐变效果 */
.testimonial-slider .owl-dots .owl-dot > span, .single-slider .owl-dots .owl-dot > span {
  margin: 4px;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.testimonial-slider .owl-dots .owl-dot.active > span, .single-slider .owl-dots .owl-dot.active > span {
  background: white;
}
/* 去掉当点击小圆点时默认的outline效果 */
.testimonial-slider .owl-dots .owl-dot:active, .testimonial-slider .owl-dots .owl-dot:focus, .single-slider .owl-dots .owl-dot:active, .single-slider .owl-dots .owl-dot:focus {
  outline: none;
}
/* 将小圆点下沉50像素（距离轮播图底部的距离），从而在鼠标悬停时上浮50像素，产生动态效果。 */
.testimonial-slider .owl-dots {
  bottom: -50px;
}
/* 以下是设置一个单个图片轮播器的样式 */
.single-slider {
  margin-bottom: 90px;
}

.single-slider .owl-prev, .single-slider .owl-next {
  position: absolute;
  top: 50%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  z-index: 99;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2) !important;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.single-slider .owl-prev:hover, .single-slider .owl-next:hover {
  background: rgba(0, 0, 0, 0.9) !important;
}

.single-slider .owl-prev span, .single-slider .owl-next span {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.single-slider .owl-prev span:before, .single-slider .owl-next span:before {
  font-size: 40px;
}

.blog-post-entry {
  margin-bottom: 30px;
}

.blog-post-entry .post-meta {
  font-family: "Arimo", sans-serif;
}

.form-outline-style-v1 .form-group {
  position: relative;
  margin-bottom: 50px;
}

.form-outline-style-v1 .form-group label {
  position: absolute;
  top: 5px;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.form-outline-style-v1 .form-group .form-control {
  border: none;
  background: none;
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.form-outline-style-v1 .form-group .form-control:active, .form-outline-style-v1 .form-group .form-control:focus {
  outline: none;
  -webkit-box-shadow: none;
  box-shadow: none;
  border-bottom: 1px solid white;
}

.form-outline-style-v1 .form-group label {
  font-size: 12px;
  display: block;
  margin-bottom: 0;
  color: #b3b3b3;
  text-transform: uppercase;
  font-weight: 900;
}

.form-outline-style-v1 .form-group.focus {
  background: #fff;
}

.form-outline-style-v1 .form-group.field--not-empty label {
  margin-top: -25px;
}

.form-control {
  border: none;
  background: none;
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.form-control:active, .form-control:focus {
  background: none;
  outline: none;
  -webkit-box-shadow: none;
  box-shadow: none;
  border-bottom: 1px solid white;
}

@media (max-width: 767.98px) {
  .contact-info-v1 {
    text-align: center;
  }
}

.contact-info-v1 > div {
  margin-bottom: 30px;
}

.contact-info-v1 .contact-info-label {
  font-size: 11px;
  letter-spacing: .1rem;
  font-weight: 900;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.contact-info-v1 .contact-info-val {
  font-size: 20px;
  color: #fff;
}
/* 设置单个项目页面中的标题样式和关闭按钮样式。 */
.portfolio-single-inner .heading-portfolio-single-h2 {
  margin-bottom: 40px;
  font-size: 50px;
  font-weight: 900;
}

@media (max-width: 991.98px) {
  .portfolio-single-inner .heading-portfolio-single-h2 {
    font-size: 30px;
  }
}

#portfolio-single-holder .portfolio-single-inner {
  position: relative;
  opacity: 0;
  display: none;
}

.unslate_co--close-portfolio {
  position: absolute;
  top: -10px;
  cursor: pointer;
  z-index: 9;
  padding: 10px 10px 10px 10px;
  right: -10px;
  border: 2px solid transparent;
  background-color: #212121;
  border-radius: 30px;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.unslate_co--close-portfolio .close-portfolio-label {
  font-size: 14px;
  top: 25px;
  right: -10px;
  width: 150px;
  position: absolute;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  opacity: 0;
  visibility: hidden;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.unslate_co--close-portfolio .wrap-icon-close {
  font-size: 30px;
  position: relative;
  -webkit-transition: .3s all ease;
  -o-transition: .3s all ease;
  transition: .3s all ease;
}

.unslate_co--close-portfolio:hover .wrap-icon-close {
  -webkit-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  transform: rotate(90deg);
}

.unslate_co--close-portfolio:hover .close-portfolio-lanel {
  opacity: 1;
  left: -10px;
  visibility: visible;
}

.unslate_co--close-portfolio:hover, .unslate_co--close-portfolio:focus {
  border-color: #333333;
  background-color: #2e2e2e;
}

.unslate_co--close-portfolio:hover .close-portfolio-label, .unslate_co--close-portfolio:focus .close-portfolio-label {
  right: 20px;
  opacity: 1;
  visibility: visible;
}

.close-portfolio--content {
  right: 50%;
  -webkit-transform: translateX(50%);
  -ms-transform: translateX(50%);
  transform: translateX(50%);
}

.close-portfolio--content .close-portfolio-label {
  right: 50% !important;
  -webkit-transform: translateX(50%);
  -ms-transform: translateX(50%);
  transform: translateX(50%);
  top: 50px;
}

.detail-v1 .detail-label {
  display: block;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .1rem;
  color: rgba(255, 255, 255, 0.5);
}

.detail-v1 .detail-val {
  font-size: 16px;
  color: #fff;
}

.detail-v1 .detail-val a {
  color: #fff;
}

.unslate_co--footer {
  text-align: center;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.5);
}

.unslate_co--footer a {
  color: rgba(255, 255, 255, 0.6);
}

.unslate_co--footer a:hover {
  color: #fff;
}

.unslate_co--footer .footer-site-logo {
  margin-bottom: 30px;
}

.unslate_co--footer .footer-site-logo a {
  font-size: 30px;
  font-weight: 900;
  font-family: "Raleway", sans-serif;
  color: #fff;
}

.unslate_co--footer .footer-site-logo a span {
  color: rgb(212,175,55);
}

.unslate_co--footer .footer-site-social {
  padding: 0;
  margin: 0;
  margin-bottom: 30px;
}

.unslate_co--footer .footer-site-social li {
  padding: 0;
  margin: 0;
  list-style: none;
  display: inline-block;
}

@media (max-width: 991.98px) {
  .unslate_co--footer .footer-site-social li {
    display: block;
  }
}

.unslate_co--footer .footer-site-social li a {
  display: inline-block;
  padding-left: 20px;
  padding-right: 20px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: .1rem;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: bold;
}
/* 链接在鼠标悬停或获得焦点时的样式 */
.unslate_co--footer .footer-site-social li a:hover, .unslate_co--footer .footer-site-social li a:focus {
  color: #fff;
}
/* 定义了一个名为.loader-portfolio-wrap的类的样式，用于显示加载器。其中包括了位置定位、透明度、可见性、水平居中等样式。 */
.loader-portfolio-wrap {
  text-align: center;
  display: none;
  opacity: 0;
  visibility: hidden;
  left: 50%;
  top: 0px;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  position: absolute;
}
/* 设置加载器的样式，包括宽度、高度、边距、边框颜色等。 */
.loader-portfolio, .site-loader {
  width: 2rem;
  height: 2rem;
  margin: 2rem auto;
  border-radius: 50%;
  border: 0.3rem solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  -webkit-animation: 1.5s spin infinite linear;
  animation: 1.5s spin infinite linear;
}

.loader-portfolio.dark, .site-loader.dark {
  border: 0.3rem solid rgba(0, 0, 0, 0.3);
  border-top-color: #000;
}

@-webkit-keyframes spin {
  to {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes spin {
  to {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

.jarallax {
  position: relative;
  z-index: 0;
}

.jarallax > .jarallax-img {
  position: absolute;
  -o-object-fit: cover;
  object-fit: cover;
  font-family: 'object-fit: cover;';
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

span.error {
  color: rgba(255, 255, 255, 0.5);
}

#message {
  resize: vertical;
}

#form-message-warning, #form-message-success {
  display: none;
}

#form-message-warning {
  color: #f64b3c;
}

#form-message-success {
  color: #8cba51;
  font-size: 18px;
  font-weight: bold;
}

.submitting {
  float: left;
  width: 100%;
  padding: 10px 0;
  display: none;
  font-weight: bold;
  font-size: 13px;
  letter-spacing: .1rem;
  color: rgba(255, 255, 255, 0.5);
}

.unslate_co--sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 80px;
}

.unslate_co--sticky:after, .unslate_co--sticky:before {
  content: '';
  display: table;
}

.comment-form-wrap {
  clear: both;
}

.comment-list {
  padding: 0;
  margin: 0;
}

.comment-list .children {
  padding: 50px 0 0 40px;
  margin: 0;
  float: left;
  width: 100%;
}

.comment-list li {
  padding: 0;
  margin: 0 0 30px 0;
  float: left;
  width: 100%;
  clear: both;
  list-style: none;
}

.comment-list li .vcard {
  width: 80px;
  float: left;
}

.comment-list li .vcard img {
  width: 50px;
  border-radius: 50%;
}

.comment-list li .comment-body {
  float: right;
  width: calc(100% - 80px);
}

.comment-list li .comment-body h3 {
  font-size: 20px;
}

.comment-list li .comment-body .meta {
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: .1em;
  color: #ccc;
  margin-bottom: 20px;
}

.comment-list li .comment-body .reply {
  padding: 7px 15px;
  background: gray;
  color: #fff;
  text-transform: uppercase;
  border-radius: 30px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .1rem;
}

.comment-list li .comment-body .reply:hover {
  color: #fff;
  background: #8c8c8c;
}

.categories_tags {
  font-weight: bold;
}

.post-single-navigation a {
  line-height: 1.5;
  font-weight: bold;
  padding-top: 2rem;
  padding-bottom: 2rem;
  display: inline-block;
}

.post-single-navigation a span {
  margin-bottom: 10px;
  font-size: 11px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.lines-wrap {
  position: absolute;
  z-index: -1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

@media (max-width: 767.98px) {
  .lines-wrap {
    display: none;
  }
}

.lines-wrap .lines-inner {
  position: absolute;
  width: 1140px;
  left: 50%;
  margin-left: -570px;
  top: 0;
  height: 100%;
  border-left: 1px solid #222;
  border-right: 1px solid #222;
}

.lines-wrap .lines-inner .lines {
  position: absolute;
  left: 33.333333%;
  right: 33.333333%;
  height: 100%;
  border-left: 1px solid #222;
  border-right: 1px solid #222;
}
/* 定义了使用GSAP动画库的gsap-reveal类的样式 */
.gsap-reveal {
  position: relative;
  display: inline-block;
  overflow: hidden;
}
/* 当视口宽度小于或等于991.98像素时，overflow 属性将被设置为 visible，这将允许元素的内容溢出其边界。 */
@media (max-width: 991.98px) {
  .gsap-reveal.gsap-reveal-filter {
    overflow: visible !important;
  }
}
/* 定义了.gsap-reveal类中.cover元素的样式，该元素将覆盖其父元素的整个区域，并有一个黑色的背景。 */
.gsap-reveal .cover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: black;
}

.gsap-reveal-hero {
  line-height: 0;
}
/* 定义了.gsap-reveal-hero类及其内部.reveal-wrap元素的样式，通常用于文本内容的动画效果 */
.gsap-reveal-hero .reveal-wrap {
  position: relative;
  overflow: hidden;
  display: inline-block;
}

.gsap-reveal-hero .reveal-wrap .cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:  rgb(212,175,55);
  margin-left: -100%;
  z-index: 2;
}

.gsap-reveal-hero .reveal-wrap .reveal-content {
  line-height: 1.5;
  z-index: 1;
  display: inline-block;
  -webkit-transform: translateX(-100%);
  -ms-transform: translateX(-100%);
  transform: translateX(-100%);
}
/* 以上的意思是.cover 有一个黄色背景，并且初始时完全覆盖其父元素。
.reveal-content 初始时不在视图中（通过向左移动100%实现），随着动画效果，它将进入视图。 */


.gsap-reveal-img {
  line-height: 0;
}

.gsap-reveal-img .reveal-wrap {
  position: relative;
  overflow: hidden;
}

.gsap-reveal-img .reveal-wrap .cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:  rgb(212,175,55);
  margin-left: -100%;
  z-index: 9;
}

.gsap-reveal-img .reveal-wrap .reveal-content {
  opacity: 0;
  visibility: hidden;
}

.gsap-reveal-img .reveal-wrap .reveal-content .portfolio-item-content h3 {
  margin-bottom: 10px;
}
/* 用于图片内容的动画效果
.cover 同样有黄色背景，初始时覆盖整个元素。
.reveal-content 初始时不可见（opacity设为0，visibility设为hidden），随着动画效果，它将变得可见。 */