@charset "utf-8";
/* ============================================================
   四川龙邦机电设备有限公司 — PbootCMS 模板样式
   ------------------------------------------------------------
   视觉还原自老站（SupeSite 7.5 + weballa.css），主色取自
   老站背景图的真实像素值：

     导航条   #CB161F   底部描边 #971014
     标题栏   #D4000C   底部描边 #BC0001
     强调红   #CC0000
     正文     #333333   次要文字 #666666

   改造要点：
     1. 老站固定 1000px 宽 → 改为响应式（桌面 / 平板 / 手机）
     2. 老站正文 12px 宋体 → 提到 14px，手机端 16px
     3. 老站 float 布局 → Flex / Grid
     4. 手机端导航折叠为汉堡菜单
   ============================================================ */

:root {
  --red-nav: #CB161F;
  --red-nav-dark: #971014;
  --red-title: #D4000C;
  --red-title-dark: #BC0001;
  --red: #CC0000;
  --text: #333333;
  --text-mute: #666666;
  --border: #CCCCCC;
  --border-light: #E4E4E4;
  --bg-soft: #F8F8F8;
  --container: 1000px;
  --gap: 12px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont,
               "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
  background: #fff;
  text-align: left;
}

a { color: var(--text); text-decoration: none; transition: color .2s; }
a:hover { color: var(--red); }
img { max-width: 100%; height: auto; border: 0; vertical-align: middle; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 500; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 12px;
}

/* ---------------- 头部 ---------------- */
.site-header { padding: 14px 0; }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.logo { display: block; flex: 0 0 auto; }
.logo img { height: 68px; width: auto; }

.header-contact {
  text-align: right;
  color: var(--red);
  font-size: 14px;
  line-height: 1.65;
}
.header-contact p { margin: 0; }
.header-contact strong { font-size: 19px; letter-spacing: .5px; }

/* ---------------- 导航 ---------------- */
.site-nav {
  background: var(--red-nav);
  border-bottom: 2px solid var(--red-nav-dark);
}

.nav-toggle {
  display: none;
  width: 100%;
  padding: 12px 4px;
  background: none;
  border: 0;
  color: #fff;
  font-size: 16px;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}
.nav-toggle::after {
  content: "";
  float: right;
  margin-top: 9px;
  border: 5px solid transparent;
  border-top-color: #fff;
}

.nav-list { display: flex; flex-wrap: wrap; }

.nav-list > li { flex: 0 0 auto; }

.nav-list > li > a {
  display: block;
  padding: 0 20px;
  height: 36px;
  line-height: 36px;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}
.nav-list > li > a:hover,
.nav-list > li.active > a { background: var(--red-nav-dark); color: #fff; }

/* ---------------- 主体骨架 ---------------- */
.main-wrap {
  display: flex;
  gap: 26px;
  align-items: flex-start;
  padding-top: 14px;
  padding-bottom: 24px;
}

.sidebar { flex: 0 0 214px; width: 214px; }
.main-col { flex: 1 1 auto; min-width: 0; }

/* ---------------- 侧栏 ---------------- */
.side-block { margin-bottom: 16px; }

.side-title,
.block-title {
  display: flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  background: linear-gradient(180deg, #E10010 0%, var(--red-title) 55%, var(--red-title-dark) 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-radius: 3px 3px 0 0;
}

.side-list { border: 1px solid var(--border-light); border-top: 0; }

.side-list a {
  display: block;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
  background: #fff;
}
.side-list li:last-child a { border-bottom: 0; }
.side-list a:hover { background: var(--bg-soft); color: var(--red); }

.side-contact {
  border: 1px solid var(--border-light);
  border-top: 0;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 2;
}
.side-contact span { color: var(--text-mute); }

/* ---------------- 内容块 ---------------- */
.block { margin-bottom: 20px; }

.block-body {
  border: 1px solid var(--border-light);
  border-top: 0;
  padding: 14px;
}

/* 图文摘要 */
.intro-text { font-size: 14px; line-height: 1.95; color: var(--text); }
.intro-text p { margin: 0 0 10px; text-indent: 2em; }

/* 缩略图网格 */
.pic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.pic-grid a { display: block; }

.pic-grid .thumb {
  display: block;
  border: 1px solid var(--border-light);
  padding: 3px;
  background: #fff;
}
.pic-grid .thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
}
.pic-grid .cap {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  text-align: center;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pic-grid a:hover .cap { color: var(--red); }

/* 文字列表（带日期） */
.news-list li {
  position: relative;
  padding: 7px 0 7px 15px;
  border-bottom: 1px dashed var(--border-light);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-list li:last-child { border-bottom: 0; }
.news-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 0;
  height: 0;
  border: 4px solid transparent;
  border-left-color: var(--red);
}
.news-list .date { float: right; color: var(--text-mute); font-size: 13px; padding-left: 10px; }

/* 四列资讯区 */
.info-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.info-cols .col .block-title { font-size: 14px; }

/* ---------------- 轮播 ---------------- */
.slider-wrap {
  position: relative;
  margin-bottom: 20px;
  border: 1px solid var(--border-light);
  border-radius: 3px;
  overflow: hidden;
}

.slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.slider::-webkit-scrollbar { display: none; }

.slider > a { flex: 0 0 100%; scroll-snap-align: start; display: block; }
.slider img { display: block; width: 100%; aspect-ratio: 1000 / 294; object-fit: cover; }

/* ---------------- 列表页 / 内容页 ---------------- */
.crumb {
  padding: 9px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  font-size: 14px;
  margin-bottom: 14px;
}
.crumb a { color: var(--text-mute); }
.crumb a:hover { color: var(--red); }

.article-title {
  padding: 0 0 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
  text-align: center;
  font-size: 21px;
  font-weight: 500;
  line-height: 1.5;
}

.article-meta {
  text-align: center;
  color: var(--text-mute);
  font-size: 13px;
  margin: -8px 0 18px;
}

.article-body { font-size: 15px; line-height: 2; }
.article-body p { margin: 0 0 14px; }
.article-body img { display: block; margin: 14px auto; }
.article-body table { max-width: 100%; border-collapse: collapse; }
.article-body td, .article-body th { border: 1px solid var(--border-light); padding: 6px 10px; }

/* 分页 */
.pager { text-align: center; padding: 20px 0 6px; font-size: 14px; }
.pager a, .pager span {
  display: inline-block;
  min-width: 32px;
  padding: 5px 9px;
  margin: 0 3px;
  border: 1px solid var(--border-light);
  color: var(--red);
}
.pager span.current, .pager span:hover { background: var(--red); color: #fff; border-color: var(--red); }

/* 上一篇 / 下一篇 */
.article-nav {
  margin-top: 26px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
  font-size: 14px;
  color: var(--text-mute);
}
.article-nav p {
  margin: 5px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.article-nav a { color: var(--text); }

/* 搜索框 */
.search-form {
  display: flex;
  gap: 8px;
  max-width: 460px;
  margin: 6px auto 4px;
}
.search-form input {
  flex: 1 1 auto;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 15px;
  font-family: inherit;
}
.search-form input:focus { outline: 0; border-color: var(--red-nav); }
.search-form button {
  flex: 0 0 auto;
  height: 40px;
  padding: 0 24px;
  border: 0;
  border-radius: 3px;
  background: var(--red-nav);
  color: #fff;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
}
.search-form button:hover { background: var(--red-nav-dark); }

/* ---------------- 页脚 ---------------- */
.site-footer {
  border-top: 3px solid var(--red-nav);
  background: var(--bg-soft);
  padding: 20px 0;
  text-align: center;
  font-size: 14px;
  line-height: 2;
  color: var(--text-mute);
}
.footer-links { margin-bottom: 8px; }
.footer-links a { color: var(--text-mute); padding: 0 6px; }
.footer-links a:hover { color: var(--red); }
.site-footer .company { color: var(--text); font-size: 15px; }
.site-footer strong { color: var(--red); }

/* 备案号（工信部 / 公安）：空值自动隐藏，不留空链接 */
.site-license { margin: 2px 0 0; }
.site-license a { color: var(--text-mute); padding: 0 9px; white-space: nowrap; }
.site-license a:hover { color: var(--red); }
.site-license a:empty { display: none; }

/* 返回顶部 */
.to-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--red-nav);
  color: #fff;
  font-size: 20px;
  line-height: 44px;
  text-align: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
  z-index: 50;
  border: 0;
}
.to-top.show { opacity: .9; visibility: visible; }
.to-top:hover { opacity: 1; }

/* ============================================================
   响应式
   ============================================================ */

/* 平板：左右栏堆叠 */
@media (max-width: 999px) {
  .main-wrap { flex-direction: column; gap: 16px; }
  .sidebar { width: 100%; flex: 1 1 auto; }
  .side-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .side-list li:last-child a { border-bottom: 1px solid var(--border-light); }
  .side-list a { border-right: 1px solid var(--border-light); }
  .info-cols { grid-template-columns: repeat(2, 1fr); }
}

/* 手机 */
@media (max-width: 767px) {
  body { font-size: 16px; line-height: 1.8; }

  .container { padding: 0 14px; }

  /* 头部改为纵向 */
  .site-header { padding: 12px 0; }
  .header-inner { flex-direction: column; align-items: center; text-align: center; }
  .logo img { height: 56px; }
  .header-contact { text-align: center; font-size: 15px; }
  .header-contact strong { font-size: 20px; }

  /* 导航折叠 */
  .nav-toggle { display: block; }
  .nav-list { display: none; flex-direction: column; padding-bottom: 6px; }
  .nav-list.open { display: flex; }
  .nav-list > li > a {
    height: 44px;
    line-height: 44px;
    padding: 0 6px;
    border-top: 1px solid rgba(255, 255, 255, .16);
    font-size: 16px;
  }

  /* 字号提升，保证手机可读 */
  .side-title, .block-title { height: 40px; font-size: 16px; }
  .side-list a { padding: 11px 14px; font-size: 15px; }
  .side-contact { font-size: 15px; line-height: 2.1; }
  .block-body { padding: 14px 12px; }
  .intro-text { font-size: 16px; line-height: 2; }
  .news-list li { font-size: 16px; white-space: normal; padding: 9px 0 9px 16px; }
  .news-list li::before { top: 18px; }
  .news-list .date { float: none; display: block; padding-left: 0; }
  .pic-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .pic-grid .cap { font-size: 14px; white-space: normal; }
  .info-cols { grid-template-columns: 1fr; gap: 14px; }
  .slider img { aspect-ratio: 2 / 1; }
  .article-title { font-size: 19px; }
  .article-body { font-size: 16px; line-height: 2.05; }
  .pager a, .pager span { min-width: 38px; padding: 8px 11px; }
  .site-footer { font-size: 14px; }
  .footer-links a { display: inline-block; padding: 3px 7px; }
}

/* 打印 */
@media print {
  .site-nav, .sidebar, .to-top, .pager, .site-footer { display: none !important; }
  .main-wrap { display: block; }
  body { font-size: 12pt; }
  a { color: #000; }
}