:root {
            --primary-color: #6f42c1;
            --secondary-color: #f8f9fa;
            --text-color: #333;
            --text-muted: #6c757d;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: var(--text-color);
            background-color: var(--secondary-color);
        }
        
        /* 头部导航 */
        .header {
            background-color: #fff;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            padding: 1rem 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
        }
        
        .header-logo {
            display: flex;
            align-items: center;
            font-size: 1.25rem;
            font-weight: bold;
            color: var(--primary-color);
            text-decoration: none;
        }
        
        .header-logo i {
            font-size: 1.5rem;
            margin-right: 0.5rem;
        }
        
        .header-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        
        .header-nav a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .header-nav a:hover {
            color: var(--primary-color);
        }
        
        .header-nav a.active {
            color: var(--primary-color);
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 0.25rem;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .btn-login {
            background: transparent;
            color: var(--text-muted);
            border: 1px solid var(--text-muted);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .btn-login:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        
        .btn-register {
            background-color: var(--primary-color);
            color: white;
            border: 1px solid var(--primary-color);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .btn-register:hover {
            background-color: #5a37a0;
            border-color: #5a37a0;
        }
        
        /* 主内容区域 */
        .main-section {
            margin-top: 6rem;
        }
        
        
        /* 侧边栏 */
        .sidebar {
            background: #ffffff;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            padding: 0;
            height: auto;
            position: static;
            overflow-y: visible;
            width: 100%;
            border: 1px solid #e8e8e8;
        }
        
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .sidebar li {
            margin: 0;
        }
        
        .sidebar a {
            color: #333333;
            text-decoration: none;
            transition: all 0.2s ease;
            display: block;
            padding: 0.8rem 1.5rem;
            position: relative;
            font-size: 0.9rem;
            font-weight: 400;
            border-left: 3px solid transparent;
        }
        
        .sidebar a:hover {
            color: #1890ff;
            background-color: #f0f7ff;
        }
        
        .sidebar a.active {
            color: #1890ff;
            background-color: #e6f7ff;
            border-left-color: #1890ff;
            font-weight: 500;
        }
        
        /* 下拉菜单 */
        .sidebar .dropdown {
            position: relative;
        }
        
        .sidebar .dropdown-toggle {
            cursor: pointer;
            font-weight: 1000;
            position: relative;
            display: block;
        }
        
        /* 小三角箭头 */
        .sidebar .dropdown-toggle::after {
            content: '';
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid #999;
            transition: all 0.2s ease;
        }
        
        .sidebar .dropdown-toggle.collapsed::after {
            transform: translateY(-50%) rotate(-90deg);
        }
        
        .sidebar .dropdown-menu {
            list-style: none;
            padding: 0;
            margin: 0;
            background-color: #ffffff;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-in-out;
            border: none;
            position: static;
            width: 100%;
        }
        
        .sidebar .dropdown-menu.show {
            max-height: 500px;
        }
        
        /* 确保子菜单项没有箭头 */
        .sidebar .dropdown-menu li a {
            padding: 0.6rem 1.5rem 0.6rem 2rem;
            font-size: 0.85rem;
            font-weight: 400;
            background-color: transparent;
            border-left: none;
        }
        
        .sidebar .dropdown-menu li a:hover {
            background-color: #f0f7ff;
        }
        
        .sidebar .dropdown-menu li a.active {
            background-color: #e6f7ff;
            border-left: none;
        }
        
        /* 确保只有下拉菜单项显示箭头 */
        .sidebar .dropdown-menu li::after {
            display: none;
        }
        
        /* 侧边栏标题 */
        .sidebar-header {
            padding: 1.2rem 1.5rem;
            background-color: #fafafa;
            color: #333333;
            font-weight: 600;
            font-size: 0.9rem;
            border-bottom: 1px solid #e8e8e8;
        }
        
        /* 内容区域 */
        .content-area {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
            padding: 1.5rem;
        }
        
        .content-header {
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #e9ecef;
        }
        
        .content-header h2 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        
        .content-header p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        /* 表格样式 */
        .table {
            margin-bottom: 0;
            font-size: 0.85rem;
        }
        
        .table th {
            background-color: #f8f9fa;
            font-weight: 600;
            color: var(--primary-color);
            font-size: 0.8rem;
        }
        
        .table td {
            vertical-align: middle;
            font-size: 0.85rem;
        }
        
        .price {
            color: #dc3545;
            font-weight: 600;
        }
        
        /* 按钮样式 */
        .btn-sm {
            font-size: 0.75rem;
            padding: 0.25rem 0.5rem;
        }
        
        /* 侧边栏文字大小 */
        .sidebar a {
            font-size: 0.85rem;
            font-weight: 1000;
        }
        
        .sidebar .dropdown-menu li a {
            font-size: 0.75rem;
        }
        
        /* 侧边栏选中状态 */
        .sidebar a.active {
            color: #007bff !important;
            font-weight: 700;
            background-color: rgba(0, 123, 255, 0.1);
            border-left: 3px solid #007bff;
        }
        
        .sidebar-header {
            font-size: 0.85rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            
            .hero-content h1 {
                font-size: 1.75rem;
            }
            
            .sidebar {
                position: static;
                margin-bottom: 1.5rem;
            }
        }
        
        /* 底部 */
        #footer {
            background-color: #f8f9fa;
            padding: 3rem 0;
            border-top: 1px solid #dee2e6;
            margin-top: 2rem;
        }
        
        .footer-about {
            margin-bottom: 2rem;
        }
        
        .footer-about h4,
        .footer-links h4,
        .footer-techs h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
        }
        
        .footer-links ul {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        
        .copy-right {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #dee2e6;
            color: var(--text-muted);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }
            
            .hero-content h1 {
                font-size: 2rem;
            }
            
            .stats {
                flex-direction: column;
                gap: 1rem;
            }
            
            .api-header h2 {
                font-size: 1.75rem;
            }
        }

/* Small devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .config-wrapper {
    display: none;
  }
  .header {
    height: inherit;
  }
  .header.scrolled {
    height: auto;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
  }
  .header.scrolled .main-nav .nav .nav-item a {
    color: #ec6952;
    -webkit-opacity: 1;
    -moz-opacity: 1;
    opacity: 1;
  }
  .header.scrolled .main-nav .nav .nav-item.nav-item-cta a.btn-cta-secondary {
    background: inherit;
    border-color: inherit;
  }
  .header.scrolled .main-nav .nav .dropdown-menu a {
    color: #fff;
  }
  .header.navbar-fixed-top {
    position: relative;
  }
  .blog-slider {
    margin-top: 0;
  }
  .blog {
    margin-top: 0;
  }
  .header h1.logo {
    float: none;
    text-align: center;
  }
  .header h1.logo a {
    margin: 0 auto;
	
  }
  .header .main-nav .nav .nav-item {
    margin-right: 10px;
  }
  .main-nav.navbar-right {
    float: none !important;
  }
  .blog-page .main-nav.navbar-right {
    float: right !important;
  }
  .navbar-collapse.collapse {
    text-align: center;
  }
  .navbar-collapse.collapse .navbar-nav {
    float: none;
    margin: 0 auto;
    display: inline-block;
  }
  .blog-page .header-blog {
    position: relative;
  }
  .blog-page .header h1.logo {
    float: left;
    margin: inherit;
  }
  .promo {
    height: 420px;
    padding-top: 80px;
  }
  .promo.section .intro {
    margin-bottom: 30px;
  }
  .promo .btn-link {
    margin-top: 15px;
  }
  .why .item .content {
    margin-bottom: 60px;
  }
  .why .control {
    top: 128px;
    margin-left: -45px;
  }
  .why .item .title {
    margin-bottom: 30px;
    text-align: center;
  }
  .apps-section .phone-holder {
    -webkit-background-size: 280px auto;
    -moz-background-size: 280px auto;
    -o-background-size: 280px auto;
    background-size: 280px auto;
  }
  .apps-section .phone-holder .screenshot {
    width: 242px;
    top: 66px;
  }
  .footer-col {
    margin-bottom: 30px;
  }
  .modal.modal-video .modal-dialog {
    width: auto;
    padding-left: 15px;
    padding-right: 15px;
  }
  .access-page .navbar-collapse.collapse .navbar-nav {
    display: none;
  }
  .features-video {
    padding-top: 90px;
  }
  .pricing {
    padding-top: 90px;
  }
  .apps-section {
    padding-top: 80px;
  }
  .story-section {
    padding-top: 90px;
  }
  .contact-section {
    padding-top: 45px;
  }
}


/* Medium devices (desktops, 992px and up) */

  .header {
    height: 80px;
  }
  .header.navbar-fixed-top {
    position: fixed;
  }
  .header.scrolled {
    background: #fff;
    z-index: 1000;
    height: 80px;
    top: 0;
    -webkit-box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
    -moz-box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
  }
  .header.scrolled h1.logo a {
    -webkit-border-radius: 0;
    -moz-border-radius: 0;
    -ms-border-radius: 0;
    -o-border-radius: 0;
    border-radius: 0;
    -moz-background-clip: padding;
    -webkit-background-clip: padding-box;
    background-clip: padding-box;
    color: #ec6952;
    background: #fff;
    padding-left: 0;
    padding-top: 15px;
  }
  .header.scrolled .main-nav .nav .nav-item a {
    -webkit-opacity: 1;
    -moz-opacity: 1;
    opacity: 1;
  }
  .header.scrolled .main-nav .nav .nav-item.nav-item-cta a.btn-cta-secondary {
    background: #ec6952;
    border-color: #ec6952;
  }
  .header.scrolled .main-nav .nav .dropdown-menu a {
    color: #fff;
  }
  .main-nav {
    float: right !important;
  }
  .navbar-form .form-control {
    width: 280px;
  }
  .header h1.logo {
    float: left;
    margin: inherit;
  }
  .header .main-nav .nav .nav-item {
    margin-right: 15px;
  }
  .main-nav.navbar-right {
    float: right !important;
  }
  .promo {
    height: 620px;
    padding-top: 200px;
  }
  .promo.section .intro {
    margin-bottom: 45px;
  }
  .promo .btn-link {
    margin-top: 15px;
  }
  .why .item .content {
    margin-bottom: inherit;
  }
  .why .control {
    top: 128px;
    margin-left: -28px;
  }
  .modal.modal-video .modal-dialog {
    width: 760px;
    padding-left: 0;
    padding-right: 0;
  }
  .access-page .navbar-collapse.collapse .navbar-nav {
    display: none;
  }
  .access-section .divider {
    text-align: center;
    margin-bottom: 30px;
    color: #999;
    text-transform: uppercase;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
  }
  .access-section .divider span {
    background: #fff;
    display: inline-block;
    padding: 10px 0;
    position: relative;
    top: 80px;
    margin-left: -10px;
  }
  .access-section .divider:before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    background: #e5e5e5;
    height: 100%;
    width: 1px;
  }
  .access-section .social-btns {
    padding-left: 65px;
  }
  .access-section .social-btns .note {
    text-align: left;
  }
  .blog-slider {
    margin-top: 80px;
  }
  .why .item .title {
    margin-bottom: 15px;
    text-align: left;
  }
  .why .figure {
    text-align: left;
  }
  .blog-page .header-blog {
    position: fixed;
  }
  .blog-page .blog-category,
  .blog-page .blog-archive {
    margin-top: 80px;
  }
  .blog-entry-wrapper {
    margin-top: 80px;
  }
  
.fn_footer{
	
	margin-top:50px;
	background-color: #2c343f;} 
  
.footer_bottom{
	border-top: 1px solid rgba(255,255,255,.1);
	padding: 31px 0 28px;
}
.fb_in{
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	justify-content: space-between;
	-ms-align-items: center;
	align-items: center;
}
.fb_left p{
	margin: 0;
	padding: 0;
	font-size: 16px;
	font-family: var(--hff);
	color: #c1c1c1;
}
.fb_left p a{
	text-decoration: none;
	color: #eee;
}
.fb_left p a:hover{
	color: #fff;
}
.fb_right ul{
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	list-style-type: none;
	margin: 0;
	padding: 0;
	flex-wrap: wrap;
	margin-left: -30px;
	margin-right: 3.25rem;
}
.fb_right li{
	padding-left: 30px;
	margin: 5px 0;
}
.fb_right a{
	display: block;
	text-decoration: none;
	font-size: 16px;
	color: #fff;
	font-family: var(--hff);
}
.fb_right a:hover{
	color: var(--hc);
}

.fs-5{font-size: 1rem !important}

.mt-5{margin-top: 1rem !important;}

.row>*{padding-left: calc(var(--bs-gutter-x) * .9);}

.service_box{ position:fixed;  z-index:1000;right:-147px;top:50%;margin-top:100px;width:146px;border:1px solid #ece8e5; background:#fff; font:12px Arial, Helvetica, sans-serif; }
.service_box .tab_nav{ position:absolute;left:-42px;top:5px;}
.service_box .tab_nav > li {background:#ece8e5;border-bottom:1px solid #dfdbd9;}
.service_box .tab_nav > li.active{ background:#ff6b09;}
.service_box .tab_nav > li:first-child{border-radius:8px 0 0;}
.service_box .tab_nav > li:last-child{ border-bottom:none; border-radius:0 0 0 8px;}
.service_box .tab_nav > li > a{ display:block; width:42px;padding:12px 6px 12px 8px; line-height:14px; text-align:center;color:#2c2c2c; text-decoration:none;}
.service_box .tab_nav > li.active > a{ color:#fff;}
.service_box .tab_nav .icon{ display:block; height:28px;width:28px; background:url(../images/bg_online_service_new.gif) no-repeat; overflow:hidden;margin:3px 0;*margin:6px 0;}
.service_box .tab_nav .icon_1{ background-position:0 0 ;}
.service_box .tab_nav .icon_2{ background-position:-28px 0 ;}
.service_box .tab_nav .icon_3{ background-position:-56px 0 ;}
.service_box .tab_nav .active .icon_1{ background-position:0 -28px ;}
.service_box .tab_nav .active .icon_2{ background-position:-28px -28px ;}
.service_box .tab_nav .active .icon_3{ background-position:-56px -28px ;}
.service_box .tab_content{position:relative;}
.service_box .tab_plan{ display:none; text-align:center;}
.service_box .tab_plan p{color:#333;}








.collapse.in {
    display: block;
    visibility: visible;
}