/* root */
@media (max-width: 1599.98px) {
  :root {
    font-size: 14px;
  }
}

@media (max-width: 1279.98px) {
  :root {
    font-size: 12px;
  }
}

/* body */
body {
  background: #2f3335;
  /*background: url(../images/bg_dark.jpg) 0 0 fixed;*/
  letter-spacing: 1px;
}

/* container */
@media (min-width: 1280px) {
  .container-xl {
    max-width: 1400px !important;
  }
}

/* spacing */
.default-x-spacing {
  padding-right: 3rem;
  padding-left: 3rem;
}

@media (min-width: 768px) {
  .default-x-spacing {
    padding-right: 4.5rem;
    padding-left: 4.5rem;
  }
}

@media (min-width: 992px) {
  .default-x-spacing {
    padding-right: 6rem;
    padding-left: 6rem;
  }
}

.default-y-spacing {
  margin-top: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .default-y-spacing {
    margin-top: 4.5rem;
    margin-bottom: 4.5rem;
  }
}
@media (min-width: 992px) {
  .default-y-spacing {
    margin-top: 6rem;
    margin-bottom: 6rem;
  }
}

/* icon */
img.icon-sm {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  margin-right: .5rem;
}
img.icon-lg {
  display: inline-block;
  width: 6rem;
  height: auto;
}
img.icon-r {
  margin-left: .5rem;
  margin-right: 0;
}
.fa-2x {
  font-size: 1.25em !important;
}

/* btn */
.btn-primary {
  color: #fff;
}

/* carousel */
@media (min-width: 992px) {
  .carousel-indicators {
    bottom: -3rem;
    margin-bottom: 0;
  }
}

/* card */
.overlay .card-img-overlay {
  background-color: rgba(47, 51, 53, .5);
}

/* headline */
.headline hr {
  width: 4rem;
  height: 2px;
  margin: 2rem 0 0;
  color: #e8440a;
}
.display-2 {
  margin-bottom: 1rem;
  font-weight: 200;
  line-height: 0.9;
  text-transform: uppercase;
}
.display-3 {
  letter-spacing: 0;
}
.display-6 {
  opacity: .6;
}
.article h2::after {
  content: "";
  display: block;
  border-top: 1px solid rgba(0,0,0,.5);;  
  margin-top: 2rem;
  width: 3rem;
}
.article h2.reverse::after {
  border-color: rgba(255,255,255,.5);
}
.lh-lg h3 {
  line-height: 1.5;
}

/* typography */
p:last-child {
  margin-bottom: 0;
}
span.number {
  font-weight: 200;
  letter-spacing: -1px;
}

/* headrroom */
.headroom .navbar {
  transition: .15s ease-in-out;
}
  .headroom--unpinned .navbar {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
  }

/* nav */
.navbar-brand img {
  width: auto;
  height: 1.5rem;
}

@media (max-width: 991.98px) {
  .navbar-collapse {
    font-size: 18px;
    line-height: 2;
  }
}

@media (min-width: 992px) {
  .navbar-brand img {
    height: 1.75rem;
  }
    .navbar-nav .nav-link {
      position: relative;
    }
      .navbar-nav .nav-link.active::after {
        content: "";
        position: absolute;
        left: 50%;
        top: 100%;
        width: 6px;
        height: 6px;
        margin-left: -3px;
        border-radius: 50%;
        background: #e8440a;
      }
}

@media (min-width: 1600px) {
  .navbar-brand img {
    height: 2rem;
  }
}

/* nav-tabs */
.nav-tabs .nav-link.active {
  box-shadow: 0 0.5rem 1rem rgb(0 0 0 / 15%);
}

/* video, service */
.video {
  margin-top: -5rem;
}

@media (min-width: 768px) {
  .service {
    margin-top: -7rem;
  }
}

@media (min-width: 992px) {
  .video {
    margin-top: -8rem;
  }
}

@media (min-width: 1280px) {
  .video {
    margin-top: -12rem;
  }
}

/* cases */
.cases .row ~ .row {
  margin-top: 3rem;
}
  .cases .bg-dark {
    background-color: #242729 !important;
  }
    .cases p {
      opacity: .6;
    }

@media (max-width: 1279.98px) {
  .cases .w-50 {
    width: 65% !important;
  }
    .cases p {
      display: -webkit-box; 
      overflow: hidden;
      word-break: break-all;
      text-overflow: ellipsis;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 4;
    }
}

@media (max-width: 991.98px) {
  .cases .w-50 {
    width: 100% !important;
  }
}

@media (min-width: 768px) {
  .cases .row ~ .row {
    margin-top: 4rem;
  } 

}

@media (min-width: 992px) {
  .cases .row ~ .row {
    margin-top: 9rem;
  }
  .cases .row {
    position: relative;
  }
    .cases .row .col-12 {
      z-index: 1;
    }
    .cases .row .bg-dark {
      position: absolute;
      left: calc(50% - 4.5rem);
      margin-top: 4.5rem;
      width: calc(50% + 4.5rem);
      height: 100%;
      z-index: 0;
    }
    .cases .row .bg-dark.offset {
      left: 0;
    }
}

/* showcase */
.maintext h2 {
  opacity: .6;
}
.maintext img {
  display: block;
  width: 100%;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
  box-shadow: 0 1rem 3rem rgb(0 0 0 / 50%);
}
.maintext img:first-child {
  margin-top: 0;
}

@media (max-width: 767.98px) {
  .showcase .w-50 {
    width: 100% !important;
  }
  .maintext img {
    width: calc(100% + 6rem);
    margin-right: -3rem;
    margin-left: -3rem;
  }
}

/* timeline */
.timeline:nth-child(odd) {
  background-color: #242729;
}
  .timeline .text-md-end {
    position: relative;
    border-right: 1px solid #969696;
  }
    .timeline .h1 {
      margin-bottom: .5rem;
      font-weight: 200;
    }
    .timeline .lead {
      margin-top: .5rem;
      margin-bottom: 1.5rem;
    }
      .timeline .h1::before {
        content: '';
        display: block;
        top: 6rem;
        right: 0;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background-color: #969696;
        position: absolute;
        transform: translate(50%, -50%);
        z-index: 2;
      }

@media (max-width: 767.98px) {
  .timeline .col-12 {
    border-left: 1px solid #969696;
    border-right: none;
  }
    .timeline .h1::before {
      top: 4.5rem;
      right: 100%;
    }

    h2.h2.text-primary {
      display: none;
  }
  
}

/* contact */
.contact .col-12 > div {
  background-color: #242729;
}

/* share */
.share span {
  cursor: pointer;
}

/* modal */
.modal .btn-close {
  position: absolute;
  top: .5rem;
  right: .5rem;
  z-index: 999;
}

/* footer */
footer {
  background-color: #242729;
}
footer .logo {
  width: 10rem;
}

/**
 * 分页
 */
.pages{
  width: 100%;
  text-align: center;
}  
.pages ul{
  display: inline-block;
  vertical-align: bottom;
  margin: 2rem auto;
  padding: 0;
}
.pages li{
  float: left;
}
.pages li a{
  display: block;
  font-size: 14px;
  color: #ffffff;
  border: 1px solid #ffffff;
  /*background: #FFFFFF;*/
  line-height: 28px;
  padding: 0 10px;
  margin: 0 3px;
}
.pages li.active a,.pages li:hover a{
  color: #2f3335!important;
  background: #ffffff;
  border: 1px solid #ffffff;
}
.pages span{
  display: inline-block;
  line-height: 30px;
  margin-left: 5px;
  margin-top: 5px;
  margin-bottom: 5px;

}
.pages span input{
  width: 30px;
  height: 30px;
  border: 1px solid #ababab;
  font-size: 12px;
  color: #7c7c7c;
  text-align: center;
  margin: 0 5px;
}
.pages li{
  float: none;
  list-style: none;
  display: inline-block;
}