body, html {
	font-family: 'Montserrat', sans-serif;
	text-rendering: optimizeLegibility !important;
	-webkit-font-smoothing: antialiased !important;
	color: #000;
	width: 100% !important;
	height: 100% !important;
}
h2 {
	margin: 0 0 20px 0;
	color: #000;
	text-transform: uppercase;
	letter-spacing: 1px;
	font-weight: 400;
	font-size: 30px;
}
h3, h4 {
	color: #222;
	font-size: 18px;
	font-weight: 300;
	letter-spacing: 1px;
}
h5 {
	text-transform: uppercase;
	font-weight: 700;
	line-height: 20px;
}
p.intro {
	font-size: 16px;
	margin: 12px 0 0;
	line-height: 24px;
}
a {
	color: #555;
}
a:hover, a:focus {
	text-decoration: none;
	color: #000;
}
ul, ol {
	list-style: none;
}
.clearfix:after {
	visibility: hidden;
	display: block;
	font-size: 0;
	content: " ";
	clear: both;
	height: 0;
}
.clearfix {
	display: inline-block;
}
* html .clearfix {
	height: 1%;
}
.clearfix {
	display: block;
}
ul, ol {
	padding: 0;
	webkit-padding: 0;
	moz-padding: 0;
}
hr {
	height: 1px;
	width: 70px;
	text-align: center;
	position: relative;
	background: #666;
	margin: 0 auto;
	margin-bottom: 30px;
	border: 0;
}
.tlinks{text-indent:-9999px;height:0;line-height:0;font-size:0;overflow:hidden;}



#preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #fff;
  z-index: 999999;
}

#status {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%); 
  text-align: center;
}

#status img {
  max-width: 100%;
  max-height: 100%;
  width: 150px;  
  height: auto;
  display: block;
  margin: 0 auto;
}



/* Navigation */
#nav {
	z-index: 9999;
}
#nav.affix {
	position: fixed;
	top: 0;
	width: 100%
}
.navbar .navbar-nav {
	display: inline-block;
	float: none;
	vertical-align: top;
}
.navbar .navbar-collapse {
	text-align: center;
}
.navbar-custom {
	margin-bottom: 0;
	background-color: #f6f6f6;
	border-radius: 0px;
	padding: 10px 0;
	border-bottom: 2px solid #fff;
}
.navbar-custom a {
	color: #555;
}
.navbar-custom .nav li a {
	margin: 0 60px;
	text-transform: uppercase;
	letter-spacing: 2px;
	-webkit-transition: background .3s ease-in-out;
	-moz-transition: background .3s ease-in-out;
	transition: background .3s ease-in-out;
}
.navbar-custom .nav li a:hover {
	outline: 0;
	color: #000;
	background-color: transparent;
}
.navbar-custom .nav li a:focus, .navbar-custom .nav li a:active {
	outline: 0;
	background-color: transparent;
	color: #000;
}
.navbar-custom .nav li.active {
	outline: 0;
}
.navbar-custom .nav li.active a {
	background-color: rgba(255,255,255,.3);
}
.navbar-custom .nav li.active a:hover {
	color: #fff;
}
.btn-default {
	text-transform: uppercase;
	color: #ffffff;
	background-color: transparent;
	border-color: #ffffff;
	padding: 14px 20px;
	margin: 0;
	font-size: 16px;
	border-radius: 0;
	margin-top: 20px;
}
.btn-default:hover, .btn-default:focus, .btn-default.focus, .btn-default:active, .btn-default.active {
	color: #fff;
	background-color: #121d1f;
	border-color: #121d1f;



}
/* Header Section */
.intro {
	display: table;
	width: 100%;
	padding: 0;
	text-align: center;
	color: #ffffff;
	background: url(../img/intro-bg.jpg) no-repeat center top;
	background-color: #e5e5e5;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	background-size: cover;
	-o-background-size: cover;
}
.section-title.center {
	padding: 10px 0 40px 0;
}
.intro h1 {
	font-size: 60px;
	font-weight: 600;
	letter-spacing: 2px;
	text-transform: uppercase;
	margin-bottom: 20px;
	color: #ffffff;
}
.intro p {
	font-size: 20px;
	margin-bottom: 40px;
	margin-top: 20px;
}
header .intro-text {
	padding-top: 200px;
	padding-bottom: 200px;
}





/* TimeLine */

.timeline {
    position: relative;
    width: 80%;
    margin: 50px auto;
    padding: 20px 0;
}

.timeline-con {
    background-color: #1e1e1e;
    color: #ffffff;
    padding: 120px 0;
    margin-top: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px #00f2ea;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 15px 30px;
    background: #fe2e55;
    border-radius: 10px;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-in-out;
    cursor: pointer;
    color: white;
    box-shadow: 0 5px 15px rgba(255, 118, 136, 0.2);
}

.timeline-item:nth-child(odd) {
    left: 0;
    transform: translateX(-20px);
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    transform: translateX(20px);
}

.timeline-dot {
    position: absolute;
    top: 50%;
    left: 100%;
    width: 20px;
    height: 20px;
    background: #ffffff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease-in-out;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: 0;
}

.timeline-content {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.timeline-content h3 {
  text-transform: uppercase;
  font-family: 'Montserrat', sans-serif;
  color: #ffffff;
  font-size: 1.5rem;
  margin: 0;
}


.timeline-content p {
    font-size: 1rem;
    margin: 0;
    opacity: 1;
}

.timeline-item.show {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item:hover {
    background: rgba(255, 118, 136, 1);
    transform: scale(1.05);
}







/* About Section */
#about {
	padding: 120px 0;
}
#about .about-text {
	margin-left: 10px;
	text-align: left;
}
#about img {
	border-radius: 50%;
	width: 160px;
	height: 160px;
	display: inline-block;
}
#about p {
	margin-top: 40px;
	margin-bottom: 30px;
	line-height: 22px;
}






/* Portfolio Section */
#portfolio {
	padding: 120px 0;
	background: #f6f6f6;
}
.categories {
	padding-bottom: 30px;
	text-align: center;
}

.categories {
  padding-bottom: 30px;
  text-align: center;
}

ul.cat {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px 20px; /* 行间距30px，列间距20px */
  padding: 0;
  list-style: none;
  max-width: 1000px;
  margin: 0 auto;
}

ul.cat li {
  flex: 0 1 calc(20% - 20px); /* 一行最多5个 */
  box-sizing: border-box;
}

ul.cat li a {
  display: block;
  border: 1px solid #777;
  color: #555;
  padding: 8px 20px;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: nowrap;
}

ul.cat li a.active,
ul.cat li a:hover {
  background: #222;
  border: 1px solid #222;
  color: #fff;
}


.isotope-item {
	z-index: 2
}
.isotope-hidden.isotope-item {
	z-index: 1
}
.isotope, .isotope .isotope-item {
	/* change duration value to whatever you like */
	-webkit-transition-duration: 0.8s;
	-moz-transition-duration: 0.8s;
	transition-duration: 0.8s;
}
.isotope-item {
	margin-right: -1px;
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
}
.isotope {
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
	-webkit-transition-property: height, width;
	-moz-transition-property: height, width;
	transition-property: height, width;
}
.isotope .isotope-item {
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
	-webkit-transition-property: -webkit-transform, opacity;
	-moz-transition-property: -moz-transform, opacity;
	transition-property: transform, opacity;
}
.portfolio-item {
	margin: 15px 0;
	-webkit-transition: all 0.5s ease-out;
	-moz-transition: all 0.5s ease-out;
	-ms-transition: all 0.5s ease-out;
	-o-transition: all 0.5s ease-out;
	transition: all 0.5s ease-out;
}
.portfolio-item:hover {
	-webkit-transform: scale(1.1);
	-moz-transform: scale(1.1);
	-ms-transform: scale(1.1);
	-o-transform: scale(1.1);
	transform: scale(1.1);
}
.portfolio-item .hover-bg {
	height: 195px;
	overflow: hidden;
	position: relative;
}
.hover-bg .hover-text {
	position: absolute;
	text-align: center;
	margin: 0 auto;
	color: #ffffff;
	background: rgba(0, 0, 0, 0.66);
	padding: 30% 0 0 0;
	height: 100%;
	width: 100%;
	opacity: 0;
	transition: all 0.5s;
}
.hover-bg .hover-text>h4 {
	text-transform: uppercase;
	opacity: 0;
	color: #fff;
	-webkit-transform: translateY(100%);
	transform: translateY(100%);
	transition: all 0.3s;
}
.hover-bg:hover .hover-text>h4 {
	opacity: 1;
	-webkit-backface-visibility: hidden;
	-webkit-transform: translateY(0);
	transform: translateY(0);
}
.hover-bg .hover-text>i {
	opacity: 0;
	-webkit-transform: translateY(0);
	transform: translateY(0);
	transition: all 0.3s;
}
.hover-bg:hover .hover-text>i {
	opacity: 1;
	-webkit-backface-visibility: hidden;
	-webkit-transform: translateY(100%);
	transform: translateY(100%);
}
.hover-bg:hover .hover-text {
	opacity: 1;
}
#portfolio i.fa {
	font-size: 20px;
	padding: 5px;
	color: #E87E04;
}