/**
 * Site theme — inspired by kaiconn.com
 * Source Han Sans SC (local), light surfaces, kaiconn typography scale.
 */
@font-face {
  font-family: "Source Han Sans SC VF";
  font-style: normal;
  font-weight: 250 900;
  font-display: swap;
  src: url("../fonts/SourceHanSansSC-VF.woff2") format("woff2");
}

@font-face {
  font-family: "Source Han Sans SC";
  font-style: normal;
  font-weight: 250 900;
  font-display: swap;
  src: url("../fonts/SourceHanSansSC-VF.woff2") format("woff2");
}

:root {
  --kc-primary: #00a0e9;
  --kc-primary-deep: #005bd8;
  --kc-primary-bright: #0082fe;
  --kc-primary-soft: rgba(0, 160, 233, 0.12);
  --kc-ink: #151a1d;
  --kc-ink-2: #2b333f;
  --kc-ink-3: #373b3e;
  --kc-muted: #8d9297;
  --kc-line: #e6e9ee;
  --kc-bg: #f5f7f9;
  --kc-bg-soft: #f7f8fa;
  --kc-white: #ffffff;
  --kc-footer: #151a1d;
  --kc-footer-2: #1c2228;
  --kc-radius: 6px;
  --kc-shadow: 0 8px 28px rgba(21, 26, 29, 0.08);
  --kc-shadow-sm: 0 2px 12px rgba(21, 26, 29, 0.06);
  --kc-font: "Source Han Sans SC VF", "Source Han Sans SC", "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;
  --kc-content-width: 72%;
  --kc-nav-text: #34364e;
  --kc-footer-bg: #fbfcfd;
  --kc-footer-bar: #8d9297;
  --kc-nav-height: 80px;
  --kc-fs-body: 16px;
  --kc-fs-sm: 14px;
  --kc-fs-nav: 16px;
  --kc-fs-section: 30px;
  --kc-fs-section-sub: 17px;
  --kc-lh-body: 1.7;
  --kc-lh-footer-title: 1.5;
  --kc-lh-footer-link: 2;
  --kc-lh-footer-bar: 1.5;
  --kc-logo-max-w: 200px;
  --kc-logo-max-h: 48px;
  --kc-section-pad-y: 48px;
  --kc-side-pad: 14%;
}

/* 大屏字号阶梯（避免无效 clamp 导致变量整体失效） */
@media screen and (min-width: 1200px) {
  :root {
    --kc-nav-height: 84px;
    --kc-fs-body: 17px;
    --kc-fs-sm: 15px;
    --kc-fs-nav: 17px;
    --kc-fs-section: 32px;
    --kc-fs-section-sub: 18px;
    --kc-logo-max-w: 210px;
    --kc-logo-max-h: 50px;
    --kc-section-pad-y: 52px;
  }
}

@media screen and (min-width: 1600px) {
  :root {
    --kc-nav-height: 88px;
    --kc-fs-body: 18px;
    --kc-fs-sm: 16px;
    --kc-fs-nav: 18px;
    --kc-fs-section: 34px;
    --kc-fs-section-sub: 19px;
    --kc-logo-max-w: 220px;
    --kc-logo-max-h: 52px;
    --kc-section-pad-y: 56px;
  }
}

@media screen and (min-width: 1920px) {
  :root {
    --kc-nav-height: 92px;
    --kc-fs-body: 19px;
    --kc-fs-sm: 16px;
    --kc-fs-nav: 19px;
    --kc-fs-section: 36px;
    --kc-fs-section-sub: 20px;
    --kc-logo-max-w: 230px;
    --kc-logo-max-h: 54px;
    --kc-section-pad-y: 60px;
  }
}

@media screen and (min-width: 2560px) {
  :root {
    --kc-nav-height: 100px;
    --kc-fs-body: 22px;
    --kc-fs-sm: 18px;
    --kc-fs-nav: 22px;
    --kc-fs-section: 40px;
    --kc-fs-section-sub: 22px;
    --kc-logo-max-w: 260px;
    --kc-logo-max-h: 60px;
    --kc-section-pad-y: 72px;
  }
}

/* 内容区 72% 宽；顶栏/底栏全宽 */
@media screen and (min-width: 769px) {
  .container,
  .kc-content {
    width: var(--kc-content-width) !important;
    max-width: none !important;
    margin-left: auto !important;
    margin-right: auto !important;
    float: none !important;
  }

  .mfoot_box > .container {
    width: 100% !important;
    max-width: none !important;
    padding-left: var(--kc-side-pad) !important;
    padding-right: var(--kc-side-pad) !important;
    box-sizing: border-box;
  }

  .site-footer .footer-top .container,
  .site-footer .footer-bottom .container {
    width: var(--kc-content-width) !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
}

.page-home .container {
  float: none;
}

.page-home > .container,
.page-home .about_bg .container,
.page-home .news_bg .container {
  padding-top: var(--kc-section-pad-y);
  padding-bottom: var(--kc-section-pad-y);
}

html {
  scroll-behavior: smooth;
  font-size: var(--kc-fs-body);
}

body {
  font-family: var(--kc-font) !important;
  font-size: var(--kc-fs-body) !important;
  font-weight: 400;
  line-height: var(--kc-lh-body);
  color: var(--kc-ink-3);
  background: var(--kc-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.navbar.navbar-default,
.site-footer,
.link_box,
.mfoot_box {
  font-family: var(--kc-font) !important;
}

a {
  color: var(--kc-primary-deep);
  transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.navbar-default .navbar-nav a,
.navbar-default .navbar-nav a:hover,
.navbar-default .navbar-nav a:focus {
  color: var(--kc-nav-text) !important;
  text-decoration: none !important;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus,
.navbar-default .navbar-nav > li > a.active,
.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .open > a {
  color: var(--kc-primary-deep) !important;
}

a:hover,
a:focus {
  color: var(--kc-primary);
}

/* —— Header / Nav (kaiconn light bar) —— */
.navbar.navbar-default {
  background: var(--kc-white) !important;
  border: none !important;
  border-bottom: 1px solid #e6e6e6 !important;
  box-shadow: none !important;
}

.navbar-default .navbar-nav > li > a {
  color: var(--kc-nav-text) !important;
  font-weight: 500;
  letter-spacing: 0;
  font-size: var(--kc-fs-nav);
  font-family: var(--kc-font) !important;
  background-color: transparent !important;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus,
.navbar-default .navbar-nav > li > a.active,
.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .open > a,
.navbar-default .navbar-nav > .open > a:hover,
.navbar-default .navbar-nav > .open > a:focus {
  background-color: transparent !important;
  color: var(--kc-primary-deep) !important;
}

.nav_small {
  background: var(--kc-white) !important;
  border: none !important;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1) !important;
  padding: 0 !important;
  border-radius: 0 0 2px 2px !important;
  min-width: 140px;
}

.nav_small > li > a {
  color: var(--kc-nav-text) !important;
  font-size: var(--kc-fs-nav);
  font-weight: 400;
  line-height: 44px;
  padding: 0 16px !important;
  font-family: var(--kc-font) !important;
}

.nav_small > li > a:hover {
  color: var(--kc-primary-deep) !important;
  background-color: #f7f7f7 !important;
}

.navbar-default .navbar-toggle .icon-bar {
  background-color: var(--kc-nav-text) !important;
}

.navbar-default .navbar-toggle:hover,
.navbar-default .navbar-toggle:focus {
  background-color: var(--kc-primary-soft) !important;
}

@media screen and (min-width: 769px) {
  .navbar.navbar-default {
    min-height: var(--kc-nav-height) !important;
  }

  /* 顶栏内层与首页内容同宽居中（72%），左 Logo + 右菜单铺满剩余空间 */
  .navbar.navbar-default > .container.kc-nav-inner,
  .navbar.navbar-default > .container:not(.kc-nav-inner) {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    flex-wrap: nowrap !important;
    width: var(--kc-content-width) !important;
    max-width: none !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    min-height: var(--kc-nav-height);
    box-sizing: border-box;
  }

  .navbar.navbar-default > .container.kc-nav-inner::before,
  .navbar.navbar-default > .container.kc-nav-inner::after,
  .navbar.navbar-default > .container::before,
  .navbar.navbar-default > .container::after {
    display: none !important;
  }

  .navbar-header {
    float: none !important;
    flex: 0 0 auto;
    margin: 0 !important;
    padding: 0 !important;
  }

  .navbar-collapse {
    float: none !important;
    flex: 1 1 auto !important;
    width: auto !important;
    padding: 0 !important;
    border: none !important;
    margin: 0 0 0 40px !important;
  }

  .navbar-collapse.collapse {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
  }

  .navbar-nav {
    float: none !important;
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: space-between !important;
    margin: 0 !important;
    width: 100% !important;
  }

  .navbar-nav > li {
    float: none !important;
    display: flex !important;
    align-items: stretch !important;
    margin: 0 !important;
    position: relative;
    flex: 1 1 0;
    height: var(--kc-nav-height);
    text-align: center;
  }

  .navbar-nav > li.dropdown .app_menudown {
    display: none !important;
  }

  .navbar .logo {
    display: block;
    max-width: var(--kc-logo-max-w) !important;
    max-height: var(--kc-logo-max-h) !important;
    width: auto !important;
    height: auto !important;
    margin: 0 !important;
  }

  .navbar-default .navbar-nav > li > a {
    position: relative !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    float: none !important;
    box-sizing: border-box !important;
    min-height: var(--kc-nav-height) !important;
    height: var(--kc-nav-height) !important;
    line-height: 1.25 !important;
    padding: 0 8px 10px !important;
    font-size: var(--kc-fs-nav) !important;
    font-weight: 500 !important;
    white-space: nowrap !important;
    text-align: center !important;
    background: transparent !important;
    color: var(--kc-nav-text) !important;
    text-decoration: none !important;
    border: none !important;
  }

  /* 蓝线贴在导航项底部，避免穿字 */
  .navbar-default .navbar-nav > li > a:after {
    content: "" !important;
    position: absolute !important;
    left: 18% !important;
    right: 18% !important;
    top: auto !important;
    bottom: 0 !important;
    width: auto !important;
    height: 3px !important;
    margin: 0 !important;
    background: var(--kc-primary-deep) !important;
    border: none !important;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.25s ease;
    pointer-events: none;
  }

  .navbar-default .navbar-nav > li > a:hover:after,
  .navbar-default .navbar-nav > li > a.active:after,
  .navbar-default .navbar-nav > .active > a:after {
    transform: scaleX(1);
  }

  .navbar-default .navbar-nav > .open > .dropdown-menu {
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0;
  }
}

@media screen and (max-width: 768px) {
  .navbar.navbar-default {
    min-height: 50px !important;
  }

  /* 展开面板占满可视高度，避免只能看到部分菜单 */
  .navbar-fixed-top .navbar-collapse {
    max-height: calc(100vh - 50px) !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    background: var(--kc-white) !important;
    border-top: 1px solid #e6e6e6 !important;
    padding-bottom: 70px !important; /* 给底部固定栏留空 */
  }

  .navbar-default .navbar-collapse,
  .navbar-default .navbar-form {
    background: var(--kc-white) !important;
    border-top: 1px solid #e6e6e6 !important;
  }

  .navbar-default .navbar-nav {
    float: none !important;
    display: block !important;
    width: 100% !important;
    margin: 0 !important;
  }

  .navbar-default .navbar-nav > li {
    float: none !important;
    display: block !important;
    flex: none !important;
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
    border-bottom: 1px solid #f0f2f5;
    position: relative;
  }

  .navbar-default .navbar-nav > li > a.nav-link-main,
  .navbar-default .navbar-nav > li > a:not(.app_menudown) {
    display: block !important;
    float: none !important;
    width: auto !important;
    height: auto !important;
    min-height: 0 !important;
    line-height: 48px !important;
    padding: 0 48px 0 16px !important;
    font-size: 16px !important;
    text-align: left !important;
    color: var(--kc-nav-text) !important;
  }

  .navbar-default .navbar-nav > li > a:after {
    display: none !important;
  }

  /* 二级展开箭头 */
  .navbar-default .navbar-nav > li > a.app_menudown {
    position: absolute !important;
    top: 0 !important;
    right: 0 !important;
    width: 48px !important;
    height: 48px !important;
    line-height: 48px !important;
    padding: 0 !important;
    margin: 0 !important;
    text-align: center !important;
    color: var(--kc-nav-text) !important;
    background: transparent !important;
    z-index: 2;
  }

  .navbar-default .navbar-nav > li.open > a.app_menudown {
    color: var(--kc-primary-deep) !important;
  }

  /* 未展开时彻底隐藏二级，避免收回后残留小块 */
  .navbar-nav > li:not(.open) > .dropdown-menu,
  .navbar-nav > li:not(.open) > .nav_small {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    max-height: 0 !important;
    min-height: 0 !important;
    min-width: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border: 0 !important;
    box-shadow: none !important;
    overflow: hidden !important;
    background: transparent !important;
  }

  .navbar-nav > li.open > .dropdown-menu,
  .navbar-nav > li.open > .nav_small {
    display: block !important;
    visibility: visible !important;
    position: static !important;
    float: none !important;
    width: 100% !important;
    min-width: 0 !important;
    height: auto !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 0 0 8px !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: #f7f8fa !important;
    left: auto !important;
    transform: none !important;
  }

  .navbar-default .navbar-nav .open .dropdown-menu > li > a,
  .nav_small > li > a {
    display: block !important;
    font-weight: 400 !important;
    font-size: 15px !important;
    line-height: 42px !important;
    padding: 0 16px 0 28px !important;
    text-align: left !important;
    color: var(--kc-nav-text) !important;
    background: transparent !important;
  }

  .navbar-default .navbar-nav > li > a:hover,
  .navbar-default .navbar-nav > li > a:focus,
  .navbar-default .navbar-nav > .active > a,
  .navbar-default .navbar-nav > .active > a:hover,
  .navbar-default .navbar-nav > .active > a:focus,
  .navbar-default .navbar-nav > .open > a.nav-link-main,
  .navbar-default .navbar-nav .open .dropdown-menu > li > a:hover,
  .app_menudown:hover {
    background-color: #f7f7f7 !important;
    color: var(--kc-primary-deep) !important;
  }

  .logo {
    max-width: 156px !important;
    max-height: 32px !important;
  }

  /* 手机端：导航走顶栏/底栏菜单，页脚只保留联系信息 */
  body {
    padding-bottom: 56px !important;
  }

  .right-bar {
    display: none !important;
  }

  .site-footer {
    margin-top: 24px !important;
  }

  .footer-top {
    padding: 28px 16px 24px !important;
    background: #f7f8fa !important;
  }

  .footer-top .container.kc-content {
    width: 100% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .footer-top-grid {
    flex-direction: column !important;
    gap: 0 !important;
  }

  /* 栏目列表与顶栏菜单重复，手机端隐藏 */
  .footer-nav-group {
    display: none !important;
  }

  .footer-aside {
    width: 100% !important;
    max-width: none !important;
    flex: none !important;
    text-align: center;
    padding: 8px 8px 0;
  }

  .footer-aside-title {
    margin: 0 0 16px !important;
    font-size: 18px !important;
    font-weight: 600 !important;
    text-align: center;
  }

  .footer-qrcodes {
    justify-content: center;
    margin-bottom: 16px !important;
  }

  .footer-qrcode-item img {
    width: 120px !important;
    height: 120px !important;
    margin: 0 auto;
  }

  .footer-qrcode-item span {
    font-size: 13px !important;
    margin-top: 8px !important;
  }

  .footer-service {
    text-align: center;
  }

  .footer-service p {
    font-size: 14px !important;
    line-height: 1.8 !important;
    color: var(--kc-ink-2) !important;
  }

  .footer-contact-btn {
    display: flex !important;
    width: 100% !important;
    max-width: 280px;
    margin: 18px auto 0 !important;
    height: 44px !important;
    font-size: 15px !important;
    border-radius: 22px !important;
  }

  .footer-bottom {
    padding: 16px !important;
    min-height: 0 !important;
    text-align: center;
  }

  .footer-bottom .container,
  .footer-bottom .kc-content {
    width: 100% !important;
    padding: 0 !important;
    text-align: center !important;
  }

  .footer-bottom p,
  .footer-bottom a {
    font-size: 12px !important;
    line-height: 1.7 !important;
  }

  .footer-bottom-address {
    margin-bottom: 4px !important;
  }

  .footer-bottom-meta {
    margin-top: 0 !important;
  }

  .link_box {
    text-align: center !important;
    padding: 12px 16px 68px !important;
    font-size: 12px !important;
  }

  .link_box .container {
    width: 100% !important;
    text-align: center !important;
    padding: 0 !important;
  }

  .link_title,
  .link_box a {
    font-size: 12px !important;
    display: inline-block;
    margin: 2px 6px !important;
    padding: 0 !important;
  }

  /* 底部固定栏 */
  .mfoot_box {
    display: block !important;
    z-index: 1031;
    height: 52px !important;
    min-height: 52px !important;
  }

  .mfoot_box.navbar-default {
    background: #fff !important;
    border-top: 1px solid #e6e6e6 !important;
    box-shadow: 0 -4px 16px rgba(21, 26, 29, 0.08) !important;
  }

  .mfoot_nav {
    height: 52px;
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    font-size: 11px !important;
    color: #666 !important;
  }

  .mfoot_nav a {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #666 !important;
    font-size: 11px !important;
    text-decoration: none !important;
  }

  .mfoot_nav span.glyphicon,
  .mfoot_nav span {
    font-size: 18px !important;
    line-height: 1.2 !important;
    padding: 0 !important;
    margin-bottom: 2px;
  }

  .mfoot_menu_btn {
    cursor: pointer;
  }

  .mfoot_menu_btn:not(.collapsed),
  .mfoot_menu_btn[aria-expanded="true"],
  .mfoot_nav a:active,
  .mfoot_nav:active {
    color: var(--kc-primary-deep) !important;
    background: #f0f7ff !important;
  }
}

/* —— Section titles —— */
.product_head,
.case_head {
  background-image: none !important;
}

.product_head h2,
.advantage_head h2,
.about_head h2,
.case_head h2,
.news_head h2,
.cooperation_head p {
  color: var(--kc-ink) !important;
  font-family: var(--kc-font) !important;
  font-size: var(--kc-fs-section) !important;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.35;
}

.advantage_head p,
.about_head p,
.news_head p {
  color: var(--kc-muted) !important;
  font-size: var(--kc-fs-section-sub) !important;
  font-weight: 400;
  line-height: 1.5;
}

.product_title a,
.case_title a {
  font-family: var(--kc-font) !important;
  font-size: var(--kc-fs-body);
}

.advantage_col p,
.product_title,
.case_title {
  font-size: var(--kc-fs-sm);
  line-height: var(--kc-lh-footer-link);
}

.advantage_head span,
.about_head span,
.news_head span,
.cooperation_head span {
  background: linear-gradient(90deg, var(--kc-primary), var(--kc-primary-bright)) !important;
  background-image: none !important;
  background-color: var(--kc-primary) !important;
  width: 48px !important;
  height: 3px !important;
  border-radius: 2px;
}

.cooperation_head span {
  margin: 12px auto 0;
  display: block;
}

/* —— Home: products / cases —— */
.product_img,
.case_img {
  margin-bottom: 18px;
}

.product_img .img-thumbnail,
.case_img img,
.cooperation_img .img-thumbnail {
  border: 1px solid var(--kc-line) !important;
  border-radius: var(--kc-radius) !important;
  box-shadow: var(--kc-shadow-sm);
  background: var(--kc-white);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.product_img:hover .img-thumbnail,
.case_img:hover img,
.cooperation_img:hover .img-thumbnail {
  transform: translateY(-4px);
  box-shadow: var(--kc-shadow);
  border-color: rgba(0, 160, 233, 0.35) !important;
}

.product_title a,
.case_title a {
  color: var(--kc-ink-2) !important;
}

.product_title a:hover,
.case_title a:hover {
  color: var(--kc-primary) !important;
}

/* —— Home: advantage —— */
.advantage_col {
  padding: 22px 12px 10px;
  border-radius: 12px !important;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.advantage_col:hover {
  background: var(--kc-bg-soft) !important;
  background-image: none !important;
  box-shadow: var(--kc-shadow-sm);
}

.advantage_col a {
  color: var(--kc-ink) !important;
  font-weight: 600;
  font-family: var(--kc-font) !important;
  font-size: var(--kc-fs-body);
}

.advantage_col a:hover {
  color: var(--kc-primary) !important;
}

.advantage_col p {
  color: var(--kc-muted) !important;
}

.advantage_col img {
  width: 96px;
  height: 96px;
  max-width: 96px !important;
  object-fit: contain;
}

.advantage_col img:hover {
  transform: none !important;
}

/* 手机端两列浮动高度不齐时，强制每行起首清浮动，避免第4项错位 */
@media screen and (max-width: 768px) {
  .advantage_col {
    margin-top: 8px;
    margin-bottom: 16px;
    padding: 12px 8px 8px;
    min-height: 210px;
  }

  /* row 内第1个子元素是标题，第2/4项为每行首列 */
  .advantage_col:nth-child(even) {
    clear: left;
  }

  .advantage_col img {
    width: 72px;
    height: 72px;
    max-width: 72px !important;
  }

  .advantage_col a {
    padding-top: 12px;
    font-size: 16px;
  }

  .advantage_col p {
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.5;
  }
}

/* —— Home: about / news bands —— */
.about_bg,
.news_bg {
  background:
    linear-gradient(180deg, rgba(0, 160, 233, 0.04), transparent 40%),
    var(--kc-bg) !important;
}

.about_h3 {
  color: var(--kc-primary) !important;
  font-family: var(--kc-font) !important;
  font-size: var(--kc-fs-section-sub) !important;
  letter-spacing: 0.02em;
}

.about_p {
  color: var(--kc-ink) !important;
  border-bottom-color: var(--kc-line) !important;
  font-size: var(--kc-fs-body) !important;
  line-height: 1.8 !important;
}

.about_content {
  color: var(--kc-ink-3) !important;
  font-size: var(--kc-fs-body) !important;
  line-height: 1.8 !important;
}

.about_btn {
  background: linear-gradient(90deg, var(--kc-primary-deep), var(--kc-primary)) !important;
  border-radius: 24px !important;
  box-shadow: 0 8px 18px rgba(0, 91, 216, 0.28);
  letter-spacing: 0.06em;
}

.about_btn:hover,
.about_btn:focus {
  background: linear-gradient(90deg, var(--kc-primary), var(--kc-primary-bright)) !important;
  width: 140px !important;
  border-radius: 24px !important;
  box-shadow: 0 10px 22px rgba(0, 160, 233, 0.32);
}

.about_video {
  border-radius: var(--kc-radius);
  box-shadow: var(--kc-shadow);
  background: #000;
}

.news_h3 {
  background-image: none !important;
  border-bottom: 2px solid var(--kc-line);
  color: var(--kc-ink);
  position: relative;
  font-size: var(--kc-fs-section-sub) !important;
  font-weight: 600 !important;
}

.news_h3:after {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  background: var(--kc-primary);
  margin-top: 10px;
}

.news_ul li,
.answer_ul li {
  font-size: var(--kc-fs-body) !important;
  line-height: 1.7 !important;
  padding: 12px 0 !important;
}

.news_ul li a,
.answer_ul li a,
.right_new li a {
  color: var(--kc-ink-2) !important;
  font-size: var(--kc-fs-body) !important;
}

.news_img a {
  font-size: var(--kc-fs-body) !important;
  font-weight: 600 !important;
  color: var(--kc-ink) !important;
}

.news_time,
.news_time_p,
.news_des,
.answer_ul li p {
  font-size: var(--kc-fs-sm) !important;
  line-height: 1.7 !important;
}

.right_contents,
.product_con,
.photo_con,
.right_new li,
.bread_nav,
.left_nav_ul > li > a,
.left_snav_ul > li > a {
  font-size: var(--kc-fs-body) !important;
  line-height: 1.7 !important;
}

.right_head h2,
.left_h3,
.product_h1 {
  font-size: var(--kc-fs-section-sub) !important;
}

.news_ul li a:hover,
.answer_ul li a:hover,
.right_new li a:hover,
.right_new li a:focus {
  color: var(--kc-primary) !important;
}

.news_img img {
  border-radius: var(--kc-radius);
  box-shadow: var(--kc-shadow-sm);
}

.answer_ul li a:hover {
  color: var(--kc-primary) !important;
}

/* —— Inner pages —— */
.bread_bg {
  background: var(--kc-bg-soft);
  border-bottom: 1px solid var(--kc-line) !important;
  color: var(--kc-muted) !important;
}

.bread_nav span {
  border-left-color: var(--kc-primary) !important;
}

.bread_nav a {
  color: var(--kc-ink-3) !important;
}

.bread_nav a:hover {
  color: var(--kc-primary) !important;
}

.right_head h2 {
  color: var(--kc-ink) !important;
  border-bottom-color: var(--kc-line) !important;
}

.right_head h2 span {
  border-bottom: 2px solid var(--kc-primary) !important;
  color: var(--kc-ink);
  font-weight: 600;
}

.right_contents,
.product_con,
.photo_con {
  color: var(--kc-ink-3);
}

.right_new li {
  border-bottom-color: var(--kc-line) !important;
}

.left_h3 {
  color: var(--kc-ink) !important;
  border-bottom-color: var(--kc-line) !important;
}

.left_h3 span {
  border-bottom: 2px solid var(--kc-primary) !important;
  font-weight: 600;
}

.left_column ul.left_nav_ul > li {
  border-bottom-color: var(--kc-line) !important;
}

.left_column ul.left_nav_ul > li > a:hover,
.left_column ul.left_nav_ul li a.left_active,
.curr {
  color: var(--kc-primary) !important;
}

.left_nav {
  background: linear-gradient(180deg, var(--kc-primary-deep) 0%, var(--kc-primary) 100%) !important;
  background-image: none !important;
  background-color: var(--kc-primary-deep) !important;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--kc-shadow);
}

.left_nav_bg {
  background: var(--kc-white) !important;
  background-image: none !important;
}

.left_nav_ul > li > a {
  background-color: var(--kc-bg) !important;
  color: var(--kc-ink-2) !important;
  border-radius: var(--kc-radius) !important;
}

.left_nav_ul > li > a:hover,
.left_nav_ul li a.left_active {
  background: linear-gradient(90deg, var(--kc-primary-deep), var(--kc-primary)) !important;
  color: #fff !important;
}

ul.left_snav_ul > li > a {
  background-color: #eef3f8 !important;
  color: var(--kc-ink-3) !important;
}

ul.left_snav_ul > li > a:hover {
  background-color: var(--kc-primary-soft) !important;
  color: var(--kc-primary-deep) !important;
}

.left_nav_tel {
  color: #fff !important;
}

.left_news li a:hover,
.left_news li a:focus {
  color: var(--kc-primary) !important;
}

/* —— Buttons / forms / pager —— */
.btn-info,
.page-btn.btn-info {
  background: linear-gradient(90deg, var(--kc-primary-deep), var(--kc-primary)) !important;
  border-color: transparent !important;
  border-radius: 24px !important;
  box-shadow: 0 6px 16px rgba(0, 91, 216, 0.25);
}

.btn-info:hover,
.btn-info:focus,
.page-btn.btn-info:hover,
.page-btn.btn-info:focus {
  background: linear-gradient(90deg, var(--kc-primary), var(--kc-primary-bright)) !important;
  border-color: transparent !important;
}

.page-btn {
  background-color: var(--kc-primary-deep) !important;
  border-radius: 24px !important;
}

.page-btn:hover,
.page-btn:focus {
  background-color: var(--kc-primary) !important;
}

.btn-danger.page-btn {
  background: linear-gradient(90deg, var(--kc-primary-deep), var(--kc-primary)) !important;
  border: none !important;
}

.btn-danger.page-btn:hover {
  background: linear-gradient(90deg, var(--kc-primary), var(--kc-primary-bright)) !important;
}

.grey-btn {
  border-radius: 24px !important;
  background-color: var(--kc-bg) !important;
  color: var(--kc-ink-3);
}

.form-control {
  border-color: var(--kc-line);
  border-radius: var(--kc-radius);
  box-shadow: none;
}

.form-control:focus {
  border-color: var(--kc-primary);
  box-shadow: 0 0 0 3px var(--kc-primary-soft);
}

.page ul li:hover,
.page ul li.thisclass {
  background: var(--kc-primary) !important;
  border-color: var(--kc-primary) !important;
  color: #fff !important;
}

.pagination a:hover {
  color: var(--kc-primary) !important;
  border-color: var(--kc-primary) !important;
}

.pagination a.page-num-current {
  color: #fff !important;
  background: var(--kc-primary) !important;
  border-color: var(--kc-primary) !important;
}

#pic-page a:hover img,
#pic-page a.active img {
  border-color: var(--kc-primary) !important;
}

.point span.to_prev a,
.point span.to_next a {
  color: var(--kc-primary-deep) !important;
}

.point span.to_prev a:hover,
.point span.to_next a:hover {
  color: var(--kc-primary) !important;
}

.product_h1 {
  color: var(--kc-ink) !important;
  border-bottom-color: var(--kc-line) !important;
}

/* —— Footer / links (kaiconn light top + gray bar) —— */
.site-footer {
  margin-top: 40px;
  font-family: var(--kc-font) !important;
  clear: both;
}

.site-footer p {
  margin: 0;
}

.footer-top {
  background: var(--kc-footer-bg) !important;
  padding: 56px 0 48px;
  width: 100%;
  border-top: 1px solid var(--kc-line);
}

@media screen and (min-width: 1920px) {
  .footer-top { padding: 64px 0 56px; }
}

@media screen and (min-width: 2560px) {
  .footer-top { padding: 80px 0 64px; }
}

.footer-top-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  width: 100%;
}

.footer-nav-group {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 24px 32px;
  flex: 1 1 auto;
  min-width: 0;
}

.footer-nav-col { min-width: 0; }

.footer-nav-title {
  margin: 0 0 16px;
  font-size: var(--kc-fs-body) !important;
  font-weight: 500 !important;
  line-height: 1.4;
  font-family: var(--kc-font) !important;
}

.footer-nav-title a {
  color: var(--kc-ink) !important;
  text-decoration: none !important;
}

.footer-nav-title a:hover {
  color: var(--kc-primary-deep) !important;
}

.footer-nav-link {
  margin: 0 0 8px;
  font-size: var(--kc-fs-sm) !important;
  line-height: 1.8;
  font-weight: 400;
}

.footer-nav-link a {
  color: rgba(21, 26, 29, 0.65) !important;
  font-size: var(--kc-fs-sm) !important;
  font-weight: 400;
  text-decoration: none !important;
}

.footer-nav-link a:hover {
  color: var(--kc-primary-deep) !important;
}

.footer-aside {
  flex: 0 0 260px;
  width: 260px;
  max-width: 30%;
}

@media screen and (min-width: 2560px) {
  .footer-aside {
    flex-basis: 320px;
    width: 320px;
  }
}

.footer-aside-title {
  margin: 0 0 16px;
  font-size: var(--kc-fs-body) !important;
  font-weight: 500 !important;
  color: var(--kc-ink);
  line-height: 1.4;
  font-family: var(--kc-font) !important;
}

.footer-qrcodes {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.footer-qrcode-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-qrcode-item img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--kc-line);
  padding: 4px;
}

@media screen and (min-width: 2560px) {
  .footer-qrcode-item img {
    width: 120px;
    height: 120px;
  }
}

.footer-qrcode-item span {
  margin-top: 8px;
  font-size: var(--kc-fs-sm) !important;
  color: rgba(21, 26, 29, 0.65);
  line-height: 1.5;
  font-weight: 400;
}

.footer-service p {
  margin: 0 0 4px;
  font-size: var(--kc-fs-sm) !important;
  line-height: 1.9;
  color: rgba(21, 26, 29, 0.65);
  font-weight: 400;
}

.footer-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  min-width: 160px;
  height: 40px;
  padding: 0 20px;
  background: var(--kc-primary-deep) !important;
  color: #fff !important;
  font-size: var(--kc-fs-sm) !important;
  font-weight: 400;
  border-radius: 4px;
  text-decoration: none !important;
  transition: background 0.25s ease;
}

.footer-contact-btn:hover,
.footer-contact-btn:focus {
  background: var(--kc-primary) !important;
  color: #fff !important;
}

.footer-bottom {
  background: var(--kc-footer-bar) !important;
  border-top: none;
  min-height: 80px;
  display: flex;
  align-items: center;
  padding: 20px 0;
  width: 100%;
}

.footer-bottom .container { float: none !important; }
.footer-bottom .kc-content { width: 100%; }

.footer-bottom p {
  margin: 0;
  font-size: var(--kc-fs-sm) !important;
  line-height: 1.6;
  color: #fff;
  font-weight: 400;
}

.footer-bottom a {
  color: #fff !important;
  margin-right: 12px;
  font-size: var(--kc-fs-sm) !important;
  font-weight: 400;
}

.footer-bottom-meta { margin-top: 8px !important; }

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.85) !important;
}

footer {
  background: var(--kc-footer-bg) !important;
  color: rgba(21, 26, 29, 0.65) !important;
  margin-top: 0 !important;
  border-top: none;
  padding: 0 !important;
}

.footer_logo_text {
  border-top-color: var(--kc-line) !important;
  color: rgba(21, 26, 29, 0.65);
}

.footer_menu a,
.footer_sitemap,
.footer_contact,
.footer_contact a,
.footer_qrcode_text {
  color: rgba(21, 26, 29, 0.65) !important;
}

.footer_menu a:hover,
.footer_sitemap:hover,
.footer_sitemap:focus,
.footer_contact a:hover {
  color: var(--kc-primary-deep) !important;
}

.footer_menu_first a { color: var(--kc-ink) !important; }

.link_box,
.tags_box,
.translate {
  background-color: #7a7f84 !important;
  color: #fff !important;
  font-size: var(--kc-fs-sm) !important;
  line-height: 1.6;
  padding: 16px 0 !important;
  text-align: left !important;
}

.link_box .container { text-align: left !important; }

.link_box a,
.tags_box a {
  color: rgba(255, 255, 255, 0.9) !important;
  font-size: var(--kc-fs-sm) !important;
  font-weight: 400;
  padding: 0 12px 0 0 !important;
}

.link_box a:hover,
.tags_box a:hover { color: #fff !important; }

.link_title {
  color: #fff !important;
  font-size: var(--kc-fs-sm) !important;
  font-weight: 500;
  margin-right: 8px !important;
}

@media screen and (max-width: 1400px) {
  .footer-nav-group {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media screen and (max-width: 991px) {
  .footer-top-grid {
    flex-direction: column;
    gap: 40px;
  }
  .footer-nav-group {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px 24px;
  }
  .footer-aside {
    width: 100%;
    max-width: none;
    flex-basis: auto;
  }
}

@media screen and (max-width: 768px) {
  :root {
    --kc-fs-section: 24px;
    --kc-fs-section-sub: 16px;
    --kc-fs-nav: 15px;
    --kc-fs-body: 15px;
    --kc-fs-sm: 13px;
  }
  .about_bg,
  .news_bg { background: var(--kc-bg) !important; }
  .about_head span,
  .news_head span {
    background: var(--kc-primary) !important;
    background-image: none !important;
  }
  .news_h3,
  .about_h3 { font-size: var(--kc-fs-body) !important; }
}

/* —— Float bar / mobile foot —— */
.right-bar ul li:hover,
.right-bar ul li.gotop {
  background: var(--kc-primary) !important;
}

.mfoot_box.navbar-default {
  background: var(--kc-white) !important;
  border-top: 1px solid #e6e6e6 !important;
  box-shadow: 0 -2px 12px rgba(21, 26, 29, 0.06);
}

.mfoot_nav a,
.mfoot_nav {
  color: var(--kc-nav-text) !important;
  font-size: var(--kc-fs-sm) !important;
  font-weight: 400;
  line-height: 1.2;
}

.mfoot_nav span {
  font-size: 18px;
}

.mfoot_nav a:hover,
.mfoot_nav:hover {
  color: var(--kc-primary-deep) !important;
}

/* —— Slider polish —— */
.flash {
  position: relative;
}

.bx-wrapper .bx-pager.bx-default-pager a {
  background: rgba(255, 255, 255, 0.55) !important;
}

.bx-wrapper .bx-pager.bx-default-pager a:hover,
.bx-wrapper .bx-pager.bx-default-pager a.active {
  background: var(--kc-primary) !important;
}

/* —— Misc —— */
.opacity_img {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.case_img:hover .opacity_img {
  opacity: 0.92;
}

.file-download {
  color: var(--kc-primary-deep) !important;
}

.search_group .form-control {
  border-radius: 20px 0 0 20px;
}

#search_submit {
  color: var(--kc-primary);
  cursor: pointer;
}