/* ============================================================
   企业官网样式模板（蓝色系，CSS 变量可换肤）
   ------------------------------------------------------------
   说明：
   · 所有颜色收敛到下方 :root 变量，后续换肤只改这里即可。
   · 图片统一放在 images/ 目录，当前为占位图，直接替换同名文件即可。
   · 主容器宽度 1170px，头部/轮播为通栏。
   ============================================================ */

/* ---------- 设计变量 (整体换肤入口) ---------- */
:root {
  --c-primary:      #0072b9;   /* 主蓝：footer 背景 */
  --c-primary-dark: #366ca0;   /* 深蓝：导航 hover / 导航下边条 */
  --c-blue:         #0075c1;   /* 链接蓝 */
  --c-blue-2:       #0075c2;   /* 强调蓝 */
  --c-red:          #e50211;   /* 强调红：列表 hover */
  --c-text:         #333333;   /* 正文 */
  --c-text-2:       #474747;   /* 次级正文 */
  --c-muted:        #999999;   /* 弱化文字 */
  --c-bg:           #f0f1f2;   /* 页面背景灰 */
  --c-line:         #e8e8e9;   /* 卡片描边 */
  --c-line-2:       #e3e1e1;   /* 分隔线 */
  --c-line-3:       #d7d7d7;   /* 深分隔线 */
  --font: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 重置 ---------- */
html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6,
p, a, img, dl, dt, dd, ol, ul, li, form, table, label, input {
  margin: 0; padding: 0; border: 0; list-style: none;
}
* { box-sizing: border-box; }
input, select, textarea { outline: none; }
em, i { font-style: normal; }
a { text-decoration: none; color: inherit; }
a:hover { text-decoration: none; }
img { display: block; max-width: 100%; }

body {
  background: var(--c-bg);
  font-size: 14px;
  color: var(--c-text);
  font-family: var(--font);
  overflow-x: hidden;
}

.clearfix::after { content: ""; display: block; clear: both; }
.fl { float: left; }
.fr { float: right; }
.width1170 { width: 1170px; margin: 0 auto; }

/* ============================================================
   头部
   ============================================================ */
.site-header { background: #fff; }
.header-inner { width: 1170px; margin: 0 auto; }

/* 顶栏：logo + 语言/搜索 */
.header-top { padding-top: 14px; height: 79px; position: relative; }
.logo { float: left; }
.logo a { display: flex; align-items: center; }
.logo .logo-icon { height: 50px; width: auto; margin-right: 12px; }
.logo .logo-text { line-height: 1.25; }
.logo .logo-text strong { display: block; font-size: 20px; color: #0a5c9e; font-weight: bold; }
.logo .logo-text small { display: block; font-size: 9px; color: #5b7488; letter-spacing: 0.5px; }

.search { float: right; width: 370px; text-align: right; padding-top: 6px; }
.search .lang { font-size: 14px; color: var(--c-muted); }
.search .lang a { color: var(--c-muted); }
.search .lang a:hover { color: var(--c-blue); }
.search-form { margin-top: 10px; position: relative; display: inline-block; }
.search-form .text {
  width: 212px; height: 36px; line-height: 36px;
  border: 1px solid #ccc; border-radius: 2px;
  padding: 0 34px 0 14px;
  font-size: 14px; color: var(--c-muted);
  font-family: var(--font);
}
.search-form .text:focus { border-color: var(--c-blue); color: var(--c-text); }
.search-form .button {
  position: absolute; right: 6px; top: 50%;
  transform: translateY(-50%);
  width: 22px; height: 22px; border: none; background: none; cursor: pointer;
  padding: 0;
}
.search-form .button svg { width: 18px; height: 18px; fill: #999; }
.search-form .button:hover svg { fill: var(--c-blue); }

/* 搜索页 */
.search-page { padding: 30px 0 60px; }
.search-page-head h2 { font-size: 24px; color: var(--c-primary); margin-bottom: 20px; }
.search-page-box { display: flex; }
.search-page-box input {
  flex: 1; height: 44px; line-height: 44px; padding: 0 16px;
  border: 2px solid var(--c-primary); border-radius: 4px 0 0 4px;
  font-size: 16px; font-family: var(--font);
}
.search-page-box button {
  height: 44px; padding: 0 28px; border: none; background: var(--c-primary);
  color: #fff; font-size: 16px; cursor: pointer; border-radius: 0 4px 4px 0;
}
.search-page-box button:hover { background: var(--c-primary-dark); }
.search-page-info { margin: 16px 0; color: var(--c-muted); font-size: 14px; }
.search-page-results { border-top: 1px solid var(--c-line-3); }
.sp-item { display: block; padding: 16px 8px; border-bottom: 1px dashed var(--c-line-3); }
.sp-item:hover { background: #f6fafd; }
.sp-title { display: block; font-size: 16px; color: var(--c-blue); margin-bottom: 6px; }
.sp-item:hover .sp-title { color: var(--c-red); }
.sp-desc { display: block; font-size: 14px; color: var(--c-muted); }
.sp-empty { padding: 40px 0; text-align: center; color: var(--c-muted); }

/* 主导航 */
.nav { height: 52px; position: relative; z-index: 999; }
.nav_c { height: 52px; display: flex; align-items: center; }
.nav_c a {
  position: relative; height: 52px; line-height: 52px; white-space: nowrap;
  padding: 0 24px; font-size: 16px; color: var(--c-text);
  flex-shrink: 0;
}
.nav_c a strong { font-weight: 700; }
.nav_c a:hover, .nav_c a.on { color: var(--c-primary); }
.nav_c a:hover::after, .nav_c a.on::after {
  content: ""; position: absolute; left: 22px; right: 22px; bottom: 0;
  height: 3px; background: var(--c-primary);
}

/* 下拉子菜单 */
.sub_nav { position: absolute; top: 52px; left: 0; z-index: 1; }
.sub_nav_c { display: none; }
.sub_nav ul {
  background: #fff;
  border-top: 1px dashed #ddd; border-bottom: 1px dashed #ddd;
  padding: 18px 14px;
  box-shadow: 0 6px 16px rgba(0,0,0,.08);
  width: max-content;      /* 白色块自适应内容宽度，文字不再溢出 */
  white-space: nowrap;
}
.sub_nav ul li { display: inline-block; height: 35px; line-height: 35px; margin: 0 20px; white-space: nowrap; }
.sub_nav ul li a { font-size: 15px; font-weight: 400; color: var(--c-blue); }
.sub_nav ul li a:hover { text-decoration: underline; color: var(--c-blue); }
/* 下拉菜单水平定位：对齐到对应导航项起点（8 栏目） */
.fl_1 { margin-left: 0; }      .fl_2 { margin-left: 80px; }
.fl_3 { margin-left: 192px; }  .fl_4 { margin-left: 304px; }
.fl_5 { margin-left: 416px; }  .fl_6 { margin-left: 528px; }
.fl_7 { margin-left: 640px; }  .fl_8 { margin-left: 752px; }

/* 导航下蓝色边条 */
.nav-border { height: 5px; background: var(--c-primary-dark); }

/* ============================================================
   轮播 Banner (SuperSlide)
   ============================================================ */
.slideBox {
  width: 100%; height: 450px; overflow: hidden; position: relative;
  border-top: 5px solid #1c74b2;
}
.slideBox .bd { position: relative; height: 100%; z-index: 0; overflow: hidden; }
/* 每屏宽度必须跟随容器，不能写死像素。
   原来写的是 width:1920px，SuperSlide 的 leftLoop 是按 li 实测宽度横向平移的，
   在比 1920 窄的屏幕上位移和可视区域对不上，动画就表现为"瞬间换图"。 */
.slideBox .bd li { list-style: none; width: 100%; }
.slideBox .bd img { width: 100%; height: 450px; display: block; object-fit: cover; }
.slideBox .hd {
  height: 16px; overflow: hidden; position: absolute;
  left: 50%; bottom: 12px; margin-left: -56px; z-index: 2;
}
.slideBox .hd ul { overflow: hidden; float: left; }
.slideBox .hd ul li {
  float: left; width: 13px; height: 16px; margin-left: 7px;
  background: rgba(255,255,255,.5); border-radius: 8px; cursor: pointer;
}
.slideBox .hd ul li.on { width: 16px; height: 16px; background: #fff; }
.slideBox .prev, .slideBox .next {
  position: absolute; left: 8%; top: 50%; margin-top: -25px; z-index: 2;
  display: block; width: 32px; height: 40px; opacity: .5;
  background: rgba(0,0,0,.3); color: #fff; text-align: center; line-height: 40px; font-size: 22px;
}
.slideBox .next { left: auto; right: 8%; }
.slideBox .prev:hover, .slideBox .next:hover { opacity: 1; }

/* ============================================================
   首页主体
   ============================================================ */
.gu_bgwhite {
  background: #fff; border: 1px solid var(--c-line);
  box-shadow: 1px 1px 1px #e6e6e6;
}

/* 第一屏：焦点图 + 新闻列表 */
.gu_main1 { padding-top: 30px; }
.gu_focus { width: 585px; height: 365px; position: relative; overflow: hidden; }
.gu_focus .bd { width: 585px; height: 365px; }
.gu_focus .bd ul li { position: relative; width: 585px; height: 365px; overflow: hidden; }
.gu_focus .bd ul li img { width: 585px; height: 365px; object-fit: cover; }
.gu_focus .bd ul li p {
  position: absolute; left: 0; bottom: 0; width: 585px; height: 52px;
  line-height: 52px; padding: 0 15px;
  background: rgba(0,0,0,.7); color: #fff; font-size: 16px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.gu_focus .hd { position: absolute; bottom: 16px; right: 15px; z-index: 20; overflow: hidden; }
.gu_focus .hd ul li {
  float: left; width: 16px; height: 16px; margin-right: 5px;
  background: rgba(255,255,255,.5); border-radius: 50%; cursor: pointer;
}
.gu_focus .hd ul li.on { background: #fff; }
.gu_focus .prev, .gu_focus .next {
  position: absolute; z-index: 10; top: 50%; margin-top: -25px;
  width: 30px; height: 49px; line-height: 49px; text-align: center;
  background: rgba(0,0,0,.35); color: #fff; font-size: 22px; cursor: pointer;
}
.gu_focus .prev { left: 0; }
.gu_focus .next { right: 0; }

.gu_shownews { width: 583px; height: 363px; }
.gu_titlebox {
  border-bottom: 1px solid var(--c-line-2); line-height: 40px;
  padding: 10px 18px 0; font-size: 18px; font-weight: bold; color: var(--c-text);
}
.gu_title { float: left; }
.gu_title ul li { float: left; margin-right: 30px; }
.gu_title ul li a { color: var(--c-text); }
.gu_title ul li.on a, .gu_title ul li a:hover { color: var(--c-red); }
.gu_titlemore { float: right; }
.gu_titlemore a {
  display: none; font-size: 14px; font-weight: 400; line-height: 40px; color: var(--c-text);
}
.gu_titlemore a:first-child { display: block; }
.gu_titlemore a:hover { text-decoration: underline; color: var(--c-blue); }
.gu_shownews .gu_titlemore a:hover { color: var(--c-red); }

.gu_showlist { padding: 10px 18px 0; }
.gu_showlist ul li { height: 36px; line-height: 36px; color: var(--c-text-2); }
.gu_showlist ul li a {
  display: block; float: left; width: 430px; height: 36px; line-height: 36px;
  overflow: hidden; color: var(--c-text-2); white-space: nowrap; text-overflow: ellipsis;
}
.gu_showlist ul li a:hover { color: var(--c-red); }
.gu_showlist ul li span { float: right; color: var(--c-muted); }

/* 第二屏：业务领域 + 社会责任 */
.gu_main2 { padding-top: 30px; padding-bottom: 40px; }
.gu_main2 .gu_main2_col1, .gu_main2 .gu_main2_col2 { height: 374px; }
.gu_main2_col1 { width: 770px; }
.gu_main2_col2 { width: 370px; }

.gu_busine { width: 110px; float: left; }
.gu_busine ul li { text-align: center; }
.gu_busine ul li a {
  display: block; width: 109px; height: 58px; line-height: 17px;
  padding: 50px 4px 0; border-bottom: 1px solid var(--c-line-2);
  border-right: 1px solid var(--c-line-2); color: var(--c-text);
  position: relative;
}
.gu_busine ul li:last-child a { border-bottom: none; }
.gu_busine ul li.on a, .gu_busine ul li a:hover {
  border-right: none; color: var(--c-blue-2);
}
.gu_busine ul li a .ico {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 34px; height: 34px;
}
.gu_busine ul li a .ico svg { width: 34px; height: 34px; stroke: #8a98a5; }
.gu_busine ul li.on a .ico svg, .gu_busine ul li a:hover .ico svg { stroke: var(--c-blue-2); }

.gu_busine_con { float: right; width: 618px; padding: 15px 20px; overflow: hidden; }
.gu_busine_con h5 { font-size: 14px; line-height: 30px; }
.gu_p_busine { line-height: 30px; }
.gu_p_busine img { float: left; width: 262px; height: 193px; object-fit: cover; padding-right: 20px; padding-top: 5px; }

.gu_ad { padding: 20px 20px 0; }
.gu_ad img { width: 100%; height: 170px; object-fit: cover; }
.gu_info { padding: 10px 20px; }
.gu_info p { line-height: 28px; color: var(--c-text-2); }

.js_tab_c1 { display: none; }

/* ============================================================
   尾部
   ============================================================ */
.footer { height: 195px; background: var(--c-primary); color: #fff; }
.footer_cen { padding-top: 25px; }
.footer a { color: #fff; }
.footer p { color: #fff; line-height: 30px; }
.footer .fl p a { margin: 0 18px 0 16px; }
.footer .fl p a:first-child { margin-left: 0; }
.footer .beian { color: #fff; }
.footer .beian a { color: #fff; }
.footer .beian a + a { margin: 0 30px; }
.footer_r { text-align: center; }
.footer_r > div { margin-left: 45px; }
.footer_r img { width: 98px; height: 98px; }
.footer_r p { line-height: 24px; }

/* ============================================================
   二级页面通用组件
   ============================================================ */

/* 当前位置面包屑 */
.current_w { width: 100%; height: 36px; overflow: hidden; }
.current { width: 1170px; height: 36px; margin: 0 auto; }
.current ul li { float: left; height: 36px; line-height: 36px; }
.current ul li a { padding: 0 9px; color: var(--c-muted); }
.current ul li.now a, .current ul li a:hover { color: #1878b7; }

/* 左侧菜单 */
.sidebar_left { width: 270px; float: left; margin-top: 30px; padding-bottom: 30px; }
.menu { border-top: 1px solid var(--c-bg); padding-top: 5px; }
.menu > li > a {
  display: block; line-height: 40px; font-size: 18px; color: var(--c-text);
  border-bottom: 1px solid var(--c-bg); padding-left: 23px;
}
.menu > li > a.on, .menu > li > a:hover { color: #0075c3; font-weight: bold; }
.menu li ul { padding-top: 5px; display: none; }
.menu li ul li a {
  display: block; line-height: 32px; font-size: 15px; border: none;
  padding-left: 55px; color: #666;
}
.menu li ul li a.on, .menu li ul li a:hover {
  background: var(--c-blue-2); color: #fff; padding-left: 55px;
}

/* 右侧内容区 */
.sidebar_right { width: 870px; float: right; padding-bottom: 40px; margin-top: 25px; }
.sidebar_right h2 { font-size: 36px; padding-bottom: 20px; height: 47px; }

/* 新闻列表（二级页） */
.gu_news ul li { padding: 20px 0; border-bottom: 1px solid var(--c-line-3); overflow: hidden; line-height: 25px; }
.gu_news ul li img { width: 220px; height: 154px; object-fit: cover; float: left; margin-right: 15px; }
.gu_news h4 { font-size: 18px; height: 20px; line-height: 20px; overflow: hidden; margin-bottom: 30px; font-weight: 400; }
.gu_news ul li a { color: var(--c-text); }
.gu_news ul li a:hover { color: var(--c-red); }
.gu_news p { height: 50px; overflow: hidden; text-overflow: ellipsis; margin-bottom: 15px; }

/* 分页 */
.gu_page { font-size: 12px; height: 26px; line-height: 26px; overflow: hidden; color: var(--c-text); }
.gu_page a, .gu_page span {
  display: block; float: left; height: 24px; line-height: 24px; padding: 0 12px;
  border: 1px solid #d9d9d9; background: #fff; margin-right: 4px; color: #000;
}
.gu_page a.on, .gu_page a:hover { background: #1d78aa; color: #fff; border-color: #1d78aa; }

/* 占位图（图片未到位时的通用样式） */
.ph {
  background: linear-gradient(135deg, #dce2e9 0%, #eef1f4 100%);
  color: #8a97a4; display: flex; align-items: center; justify-content: center;
  text-align: center; font-size: 14px; letter-spacing: 1px;
  border: 1px dashed #b9c4cf;
}

/* ============================================================
   二级页面：栏目 Banner + 标题条
   ============================================================ */
.ky_baner { height: 290px; min-width: 1170px; }
.ky_baner img { width: 100%; height: 290px; object-fit: cover; }
.ky_opic {
  width: 100%; height: 60px; margin-top: -60px; position: relative;
  background: rgba(0, 0, 0, .55);
}
.ky_opic h2 {
  font-size: 24px; line-height: 60px; color: #fff; font-weight: normal;
  padding-left: 20px; width: 1150px;
}

/* ============================================================
   二级页面：栏目入口页（六宫格卡片）
   ============================================================ */
.gu_subnews_2col { padding: 30px 0 40px; }
.gu_imagetext { width: 370px; margin-right: 30px; float: left; }
.gu_imagetext.mr0 { margin-right: 0; }
.gu_imagetext > img { width: 100%; height: 169px; object-fit: cover; display: block; }
.gu_txt { padding: 15px 19px; }
.gu_shadow1 { box-shadow: -1px 2px 1px #e6e6e6; border: 1px solid #e3e3e3; }
.gu_imagetext h6 { font-size: 14px; height: 21px; line-height: 21px; overflow: hidden; }
.gu_imagetext .gu_txt p { line-height: 25px; height: 75px; margin-top: 10px; overflow: hidden; color: var(--c-text-2); }
.gu_imagetext .gu_txt a {
  display: block; float: right; color: var(--c-text); line-height: 25px; margin-top: 15px;
}
.gu_imagetext .gu_txt a:hover { text-decoration: underline; color: var(--c-red); }

/* ============================================================
   二级页面：正文内容
   ============================================================ */
.content-text { line-height: 28px; color: var(--c-text); }
.content-text p { text-indent: 2em; line-height: 28px; margin-bottom: 14px; }
.content-text h3 { font-size: 18px; line-height: 34px; color: var(--c-blue); font-weight: bold; margin: 8px 0 4px; }
.content-text img { display: block; margin: 20px auto; max-width: 100%; max-height: 420px; object-fit: cover; }
.content-text table { border-collapse: collapse; margin: 15px auto; max-width: 100%; }
.content-text table td, .content-text table th { border: 1px solid #ccc; padding: 8px 12px; line-height: 24px; }

/* 新闻详情页：来源/发布时间 */
.news-meta {
  font-size: 14px; color: var(--c-muted); text-align: center;
  padding: 8px 0 20px; border-bottom: 1px solid var(--c-line-3); margin-bottom: 20px;
}

/* ============================================================
   首页板块式布局（纵向分区，每个板块带自己的标题栏）
   ============================================================ */
.home-section { padding-top: 30px; }

/* 板块标题栏 */
.sec-head {
  height: 40px; line-height: 40px; border-bottom: 2px solid var(--c-primary);
  margin-bottom: 20px;
}
.sec-head h3 {
  float: left; height: 40px; line-height: 40px;
  font-size: 20px; font-weight: bold; color: var(--c-primary);
  padding-left: 12px; border-left: 5px solid var(--c-primary);
}
.sec-head .more { float: right; font-size: 14px; color: var(--c-muted); }
.sec-head .more:hover { color: var(--c-red); }

/* 新闻中心板块 */
.hn-main { width: 585px; height: 350px; position: relative; overflow: hidden; }
.hn-main img { width: 585px; height: 350px; object-fit: cover; }
.hn-main p {
  position: absolute; left: 0; bottom: 0; width: 100%; height: 52px; line-height: 52px;
  padding: 0 15px; background: rgba(0,0,0,.7); color: #fff; font-size: 16px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
/* 新闻中心轮播 */
.hn-main .bd { width: 585px; height: 350px; }
.hn-main .bd ul li { position: relative; width: 585px; height: 350px; }
.hn-main .bd ul li img { width: 585px; height: 350px; object-fit: cover; }
.hn-main .hd { position: absolute; bottom: 16px; right: 15px; z-index: 20; overflow: hidden; }
.hn-main .hd ul li { float: left; width: 14px; height: 14px; margin-left: 6px; background: rgba(255,255,255,.5); border-radius: 50%; cursor: pointer; }
.hn-main .hd ul li.on { background: #fff; }
.hn-list { width: 555px; }
.hn-list ul li {
  height: 44px; line-height: 44px; border-bottom: 1px dashed var(--c-line-3);
  font-size: 14px;
}
.hn-list ul li a {
  display: inline-block; max-width: 430px; color: var(--c-text-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; vertical-align: middle;
}
.hn-list ul li a:hover { color: var(--c-red); }
.hn-list ul li span { float: right; color: var(--c-muted); }

/* 核心业务卡片 */
.biz-card {
  float: left; width: 370px; height: 210px; margin-right: 30px;
  background: #fff; border: 1px solid var(--c-line);
  padding: 26px 24px; position: relative;
  box-shadow: 1px 1px 2px #e6e6e6;
}
.biz-card.mr0 { margin-right: 0; }
.biz-card h4 { font-size: 18px; color: var(--c-text); margin-bottom: 10px; }
.biz-card p { font-size: 14px; line-height: 24px; color: var(--c-text-2); height: 72px; overflow: hidden; }
.biz-card .more { position: absolute; right: 24px; bottom: 18px; font-size: 13px; color: var(--c-primary); }
.biz-card .more:hover { text-decoration: underline; }

/* 项目概况 / 社会责任 图文板块 */
.home-intro { background: #fff; border: 1px solid var(--c-line); padding: 24px; }
.home-intro .intro-img { width: 480px; height: 270px; object-fit: cover; }
.home-intro .intro-text { width: 600px; padding: 8px 0; }
.home-intro .intro-text h4 { font-size: 20px; color: var(--c-primary); margin-bottom: 16px; }
.home-intro .intro-text p { font-size: 14px; line-height: 28px; color: var(--c-text-2); margin-bottom: 18px; }
.home-intro .intro-text a { font-size: 14px; color: var(--c-primary); }
.home-intro .intro-text a:hover { text-decoration: underline; }