@charset "UTF-8";

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  padding-top: 70px;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.6;
}

body.body-white { background: #fff; }

a { color: #3399ff; text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; }

.container {
  width: 1170px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 15px;
}

.clearfix { clear: both; }

/* Header / Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(to bottom, #fafafa, #efefef);
  border-bottom: 1px solid #d4d4d4;
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

.header-inner {
  width: 1170px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 15px;
  display: flex;
  align-items: center;
  min-height: 70px;
}

.brand img { height: 50px; width: auto; display: block; }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 22px;
  padding: 4px 10px;
  cursor: pointer;
}

.site-nav { margin-left: auto; }
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav > ul > li { position: relative; }
.site-nav > ul > li > a {
  display: block;
  padding: 25px 14px;
  color: #777;
  font-size: 14px;
  text-decoration: none;
}
.site-nav > ul > li > a:hover,
.site-nav > ul > li.active > a { color: #333; background: rgba(0,0,0,.03); }

.site-nav .caret { font-size: 10px; margin-left: 2px; }

.site-nav .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 0 0 4px 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,.12);
  list-style: none;
  margin: 0;
  padding: 0;
  z-index: 1001;
}

.site-nav .has-dropdown:hover .dropdown,
.site-nav .has-dropdown.open .dropdown { display: block; }

.site-nav .dropdown li a {
  display: block;
  padding: 10px 16px;
  color: #555;
  font-size: 13px;
  white-space: nowrap;
}
.site-nav .dropdown li a:hover { background: #f5f5f5; color: #333; text-decoration: none; }

@media (max-width: 979px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    width: 100%;
    order: 3;
  }
  .site-nav.open { display: block; }
  .header-inner { flex-wrap: wrap; }
  .site-nav ul { flex-direction: column; align-items: stretch; }
  .site-nav > ul > li > a { padding: 12px 10px; border-bottom: 1px solid #eee; }
  .site-nav .dropdown {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    background: #f9f9f9;
  }
  .site-nav .has-dropdown.open .dropdown { display: block; }
}

/* Banner */
.banner-box {
  text-align: center;
  width: 100%;
  background: #ccc;
}

/* Main sections */
.tc-main { margin-top: 20px; margin-bottom: 30px; }
.tc-box {
  background: #fff;
  padding: 5px 20px;
  margin: 10px 0;
}
.tc-box h2 { margin-top: 10px; }

.index-con { padding: 10px 15px; }

.section-title, .title {
  background: #eee;
  border-radius: 5px;
  text-align: center;
  margin: 15px 0;
}
.section-title h1, .title h1 {
  font-size: 18px;
  font-weight: bold;
  color: #39F;
  margin: 0;
  padding: 8px 10px;
}

/* Home products */
.index-pro {
  list-style: none;
  margin: 0;
  padding: 0 0 14px 14px;
  display: flex;
  flex-wrap: wrap;
}
.index-pro li {
  width: calc(25% - 13px);
  margin: 14px 13px 0 0;
  text-align: center;
}
.index-pro li img {
  width: 100%;
  max-width: 270px;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid #eee;
}
.index-pro li h2 { font-size: 16px; line-height: 1.5; font-weight: normal; }

/* Home news / applications preview */
.index-news ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; }
.index-news ul li {
  border-bottom: 1px solid #eee;
  width: 97%;
  margin: 1%;
  min-height: 120px;
}
.index-news ul li .left { float: left; width: 35%; max-height: 110px; overflow: hidden; margin-right: 2%; }
.index-news ul li .right { float: right; width: 63%; }
.index-news h2 { font-size: 16px; line-height: 1; font-weight: bold; margin: 0 0 8px; }
.index-news h3 {
  font-size: 14px;
  line-height: 1.5;
  font-weight: normal;
  color: #666;
  margin: 0;
  max-height: 60px;
  overflow: hidden;
}

.img4-box { overflow: hidden; }
.img4-box img { float: left; width: 25%; display: block; }

/* Product list */
.list_01 {
  list-style: none;
  margin: 0 0 20px;
  padding: 0 0 14px 14px;
  display: flex;
  flex-wrap: wrap;
  background: #fff;
}
.list_01 li {
  width: calc(33.333% - 13px);
  margin: 14px 13px 0 0;
  text-align: center;
}
.list_01 li img {
  width: 100%;
  max-width: 270px;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid #eee;
}
.list_01 li h3 { font-size: 16px; line-height: 1.5; margin: 8px 0 4px; }
.list_01 li span { font-size: 14px; color: #999; display: none; }

/* Product detail */
.pro01-l { float: left; width: 45%; text-align: right; }
.pro01-l img { border: 1px solid #eee; margin-top: 15px; max-width: 100%; }
.pro01-r { float: right; width: 50%; text-align: left; line-height: 2; }
.pro01-r h1 { font-size: 24px; line-height: 1.5; margin-top: 15px; }
.pro01-r h2 { font-size: 16px; color: #999; line-height: 1.5; font-weight: normal; }

.conbox { font-size: 16px; padding: 0 10px 30px; }
.conbox img { max-width: 100%; height: auto !important; }
#article_content img { height: auto !important; max-width: 100%; }
#article_content { min-height: 200px; word-wrap: break-word; }
#article_content table { width: 100%; border-collapse: collapse; margin: 1em 0; }
#article_content table td { vertical-align: top; padding: 8px; }
#article_content ul { padding-left: 1.5em; }

/* Application grid */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding-bottom: 30px;
}
.app-card {
  border: 1px solid #eee;
  background: #fff;
  transition: box-shadow .2s;
}
.app-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.1); }
.app-card a { color: inherit; text-decoration: none; display: block; }
.app-card-img img { width: 100%; display: block; }
.app-card-body { padding: 12px 16px; }
.app-card-body h3 { margin: 0 0 8px; font-size: 16px; }
.app-card-body p { margin: 0; font-size: 14px; color: #666; }

/* Footer */
.footer-rule { border: none; border-top: 1px solid #999 !important; margin: 20px 15px 0; }
#footer {
  margin: 0 10px 20px;
  text-align: center;
  font-size: 13px;
  color: #666;
  padding-bottom: 20px;
}

#backtotop {
  display: none;
  position: fixed;
  bottom: 50px;
  right: 20px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,.5);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  z-index: 9999;
  line-height: 44px;
  text-align: center;
}
#backtotop:hover { background: rgba(0,0,0,.75); }

@media (max-width: 979px) {
  .index-pro li { width: calc(50% - 13px); }
  .index-news ul li { width: 100%; float: none; }
  .img4-box img { width: 50%; }
  .list_01 li { width: calc(50% - 13px); }
  .pro01-l, .pro01-r { float: none; width: 100%; text-align: center; }
}

@media (max-width: 480px) {
  .index-pro li { width: calc(50% - 8px); margin-right: 8px; }
  .list_01 li { width: 100%; }
  .img4-box img { width: 50%; }
}