/* ============================================================
   digitalchina 主题样式 —— 神州数码风格企业站（练手演示）
   主色：品牌红 #c60c1a / 科技蓝 #2270b2 / 浅灰底 #f7f9fc
   ============================================================ */
:root {
  --dc-red: #c60c1a;
  --dc-red-dark: #a00a16;
  --dc-blue: #2270b2;
  --dc-blue-dark: #1a5689;
  --dc-bg: #f7f9fc;
  --dc-border: #e6eaf0;
  --dc-text: #333333;
  --dc-text-gray: #777777;
  --dc-white: #ffffff;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px; color: var(--dc-text); background: var(--dc-white);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--dc-text); text-decoration: none; transition: color .2s; }
a:hover { color: var(--dc-red); }
ul, li { list-style: none; }
img { max-width: 100%; display: block; }
.container { width: 1200px; max-width: 100%; margin: 0 auto; padding: 0 16px; }
.clearfix::after { content: ""; display: block; clear: both; }

/* ---------- 顶部条 ---------- */
.dc-topbar {
  background: #2b2f36; color: #b8bec8; font-size: 12px; line-height: 34px;
}
.dc-topbar .container { display: flex; justify-content: space-between; }
.dc-topbar a { color: #b8bec8; margin-left: 16px; }
.dc-topbar a:hover { color: #fff; }
.dc-member-entry { display: flex; align-items: center; }
.dc-member-entry span { margin-left: 16px; color: #8a919c; }
.dc-login-btn {
  border: 1px solid var(--dc-red); color: #fff !important; padding: 2px 14px;
  margin-left: 16px; line-height: 20px;
}
.dc-login-btn:hover { background: var(--dc-red); color: #fff !important; }

/* ---------- 头部 / Logo / 搜索 ---------- */
.dc-header { padding: 22px 0; }
.dc-header .container { display: flex; align-items: center; justify-content: space-between; }
.dc-logo { display: flex; align-items: center; }
.dc-logo-mark {
  width: 46px; height: 46px; border-radius: 6px;
  background: linear-gradient(135deg, var(--dc-red), var(--dc-red-dark));
  color: #fff; font-size: 22px; font-weight: 700; text-align: center; line-height: 46px;
  margin-right: 12px; font-style: italic;
}
.dc-logo-name { font-size: 24px; font-weight: 700; letter-spacing: 1px; color: #222; }
.dc-logo-name span { color: var(--dc-red); }
.dc-logo-slogan { font-size: 12px; color: var(--dc-text-gray); margin-top: 2px; letter-spacing: 2px; }
.dc-search { display: flex; }
.dc-search input {
  width: 260px; height: 38px; border: 2px solid var(--dc-red); border-right: none;
  padding: 0 12px; outline: none; font-size: 14px;
}
.dc-search button {
  width: 80px; height: 38px; border: none; background: var(--dc-red);
  color: #fff; font-size: 14px; cursor: pointer;
}
.dc-search button:hover { background: var(--dc-red-dark); }

/* ---------- 主导航 ---------- */
.dc-nav { background: var(--dc-red); position: relative; z-index: 100; }
.dc-nav .container > ul { display: flex; }
.dc-nav .container > ul > li { position: relative; flex: 1; text-align: center; }
.dc-nav .container > ul > li > a {
  display: block; line-height: 52px; color: #fff; font-size: 16px; font-weight: 500;
}
.dc-nav .container > ul > li:hover > a,
.dc-nav .container > ul > li.active > a { background: var(--dc-red-dark); }
.dc-dropdown {
  display: none; position: absolute; left: 0; top: 52px; min-width: 100%;
  background: #fff; box-shadow: 0 6px 18px rgba(0,0,0,.12); text-align: left;
  padding: 10px 0;
}
.dc-nav li:hover .dc-dropdown { display: block; }
.dc-dropdown li a {
  display: block; padding: 10px 24px; font-size: 14px; color: var(--dc-text);
  white-space: nowrap;
}
.dc-dropdown li a:hover { background: var(--dc-bg); color: var(--dc-red); }
.dc-dropdown .dc-dd-title {
  padding: 8px 24px; font-weight: 600; color: var(--dc-blue); font-size: 14px;
}
.dc-dropdown .dc-dd-children { padding-bottom: 6px; border-bottom: 1px solid var(--dc-border); margin-bottom: 6px; }
.dc-dropdown .dc-dd-children a {
  display: inline-block; padding: 4px 10px 4px 34px; font-size: 13px; color: var(--dc-text-gray);
}

/* ---------- 轮播 ---------- */
.dc-banner { width: 100%; height: 460px; overflow: hidden; position: relative; }
.dc-banner .swiper-slide { height: 460px; position: relative; }
.dc-banner .dc-banner-bg {
  position: absolute; inset: 0;
  background: linear-gradient(120deg, #1a1e28 0%, #23324a 55%, var(--dc-blue) 100%);
}
.dc-banner .dc-banner-bg.dc-banner-bg-2 {
  background: linear-gradient(120deg, #3a0d12 0%, #7d1220 55%, var(--dc-red) 100%);
}
.dc-banner .dc-banner-inner { position: relative; z-index: 2; padding-top: 130px; color: #fff; }
.dc-banner .dc-banner-label {
  display: inline-block; padding: 4px 14px; border: 1px solid rgba(255,255,255,.5);
  border-radius: 20px; font-size: 13px; margin-bottom: 18px;
}
.dc-banner .dc-banner-title { font-size: 42px; font-weight: 700; margin-bottom: 16px; letter-spacing: 1px; }
.dc-banner .dc-banner-sub { font-size: 16px; opacity: .85; margin-bottom: 30px; }
.dc-banner .dc-banner-btn {
  display: inline-block; padding: 12px 36px; background: var(--dc-red);
  color: #fff; font-size: 15px; border-radius: 2px;
}
.dc-banner .dc-banner-btn:hover { background: #fff; color: var(--dc-red); }
.dc-banner img { width: 100%; height: 460px; object-fit: cover; }
.dc-banner .swiper-pagination-bullet { width: 36px; height: 4px; border-radius: 2px; background: rgba(255,255,255,.5); opacity: 1; }
.dc-banner .swiper-pagination-bullet-active { background: #fff; }

/* ---------- 通用区块 ---------- */
.dc-section { padding: 64px 0; }
.dc-section-gray { background: var(--dc-bg); }
.dc-sec-head { text-align: center; margin-bottom: 44px; }
.dc-sec-head h2 { font-size: 30px; font-weight: 700; color: #222; }
.dc-sec-head h2 span { color: var(--dc-red); }
.dc-sec-head p { font-size: 14px; color: var(--dc-text-gray); margin-top: 10px; letter-spacing: 1px; }
.dc-sec-head.dc-sec-head-left { text-align: left; }

/* ---------- 企业实力数据栏 ---------- */
.dc-stats { background: #2b2f36; padding: 44px 0; }
.dc-stats ul { display: flex; }
.dc-stats li { flex: 1; text-align: center; color: #fff; border-right: 1px solid rgba(255,255,255,.12); }
.dc-stats li:last-child { border-right: none; }
.dc-stats .dc-stat-num { font-size: 38px; font-weight: 700; color: #fff; }
.dc-stats .dc-stat-num em { font-style: normal; font-size: 18px; color: var(--dc-red); font-weight: 600; }
.dc-stats .dc-stat-label { font-size: 13px; color: #9aa2ae; margin-top: 8px; }

/* ---------- 卡片栅格 ---------- */
.dc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.dc-grid-4 { grid-template-columns: repeat(4, 1fr); }
.dc-grid-6 { grid-template-columns: repeat(6, 1fr); }
.dc-card {
  background: #fff; border: 1px solid var(--dc-border); border-radius: 4px;
  overflow: hidden; transition: all .25s;
}
.dc-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-4px); }
.dc-card .dc-card-img { height: 160px; background: linear-gradient(135deg, #e8eef5, #d5e0ec); display: flex; align-items: center; justify-content: center; color: var(--dc-blue); font-size: 15px; overflow: hidden;}
.dc-card .dc-card-img img { width: 100%; height: 100%; object-fit: cover; }
.dc-card .dc-card-body { padding: 18px 20px; }
.dc-card .dc-card-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.dc-card .dc-card-desc { font-size: 13px; color: var(--dc-text-gray); line-height: 1.7; height: 44px; overflow: hidden; }

/* 行业入口卡片 */
.dc-industry {
  position: relative; height: 150px; border-radius: 4px; overflow: hidden;
  background: linear-gradient(135deg, #2b3a52, var(--dc-blue));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px; font-weight: 600; transition: all .25s;
}
.dc-industry:hover { background: linear-gradient(135deg, #4a1016, var(--dc-red)); color: #fff; transform: translateY(-4px); }

/* ---------- 合作伙伴 logo 墙 ---------- */
.dc-partner-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.dc-partner-wall .dc-partner-item {
  height: 72px; background: #fff; border: 1px solid var(--dc-border); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--dc-text-gray); font-weight: 600;
}
.dc-partner-wall .dc-partner-item:hover { border-color: var(--dc-red); color: var(--dc-red); }
.dc-partner-wall img { max-height: 48px; width: auto; }

/* ---------- 新闻列表 ---------- */
.dc-news-list li {
  display: flex; justify-content: space-between; padding: 13px 0;
  border-bottom: 1px dashed var(--dc-border); font-size: 14px;
}
.dc-news-list li a { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dc-news-list li a::before { content: "▪"; color: var(--dc-red); margin-right: 8px; }
.dc-news-list li span { color: #a0a6b0; font-size: 13px; margin-left: 20px; }

/* ---------- 页脚 ---------- */
.dc-footer { background: #23262d; color: #9aa2ae; margin-top: 0; }
.dc-footer-main { padding: 50px 0 30px; display: flex; }
.dc-footer-brand { width: 320px; }
.dc-footer-brand .dc-logo-name { color: #fff; }
.dc-footer-brand p { font-size: 13px; line-height: 1.9; margin-top: 14px; }
.dc-footer-cols { flex: 1; display: flex; }
.dc-footer-col { flex: 1; padding-left: 40px; }
.dc-footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.dc-footer-col li { line-height: 2.1; font-size: 13px; }
.dc-footer-col a { color: #9aa2ae; }
.dc-footer-col a:hover { color: #fff; }
.dc-footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; font-size: 12px;
  display: flex; justify-content: space-between;
}

/* ---------- 内页通用 ---------- */
.dc-page-banner {
  height: 220px; background: linear-gradient(120deg, #1a1e28, var(--dc-blue));
  color: #fff; display: flex; align-items: center;
}
.dc-page-banner h1 { font-size: 32px; margin-bottom: 8px; }
.dc-page-banner p { font-size: 14px; opacity: .8; }
.dc-crumbs { font-size: 13px; color: var(--dc-text-gray); padding: 14px 0; }
.dc-crumbs a { color: var(--dc-text-gray); }
.dc-crumbs a:hover { color: var(--dc-red); }
.dc-content-wrap { padding: 30px 0 60px; min-height: 400px; }
.dc-article { max-width: 900px; margin: 0 auto; }
.dc-article h1.dc-article-title { font-size: 26px; text-align: center; margin-bottom: 14px; }
.dc-article .dc-article-meta { text-align: center; color: #a0a6b0; font-size: 13px; padding-bottom: 20px; border-bottom: 1px solid var(--dc-border); margin-bottom: 24px; }
.dc-article .dc-article-body { font-size: 15px; line-height: 2; }
.dc-article .dc-article-body p { margin-bottom: 14px; }
.dc-article .dc-article-body img { margin: 10px auto; }

/* 分页 */
.dc-pages { text-align: center; margin-top: 36px; }
.dc-pages a, .dc-pages span {
  display: inline-block; padding: 7px 14px; border: 1px solid var(--dc-border);
  margin: 0 3px; font-size: 13px; border-radius: 2px;
}
.dc-pages a:hover, .dc-pages .current { background: var(--dc-red); border-color: var(--dc-red); color: #fff; }

/* 占位提示（T01 框架阶段用） */
.dc-placeholder {
  border: 1px dashed #c9d2dd; border-radius: 4px; padding: 34px 20px; text-align: center;
  color: #93a0b0; font-size: 13px; background: #fbfcfe;
}