/* ==========================================================
   黑龙江优迅科技有限公司 官网 —— 内容页（知识库）样式
   设计令牌完全沿用 assets/css/style.css，仅补充长文排版组件
   主色：深蓝 #14418F / 青 #12C2E9
   ========================================================== */

/* ---------- 内容页骨架 ---------- */
.kb-wrap { padding: 72px 0 96px; background: #fff; }
.kb-wrap.alt { background: var(--c-bg-light); }
.kb-layout { display: grid; grid-template-columns: 258px 1fr; gap: 54px; align-items: start; }
.kb-layout.wide { grid-template-columns: 1fr; max-width: 1000px; margin: 0 auto; }

/* ---------- 侧栏 ---------- */
.kb-side { position: sticky; top: calc(var(--header-h) + 22px); }
.kb-side .sb-card {
  border: 1px solid var(--c-border); border-radius: 14px; padding: 22px 24px;
  margin-bottom: 18px; background: #fff; box-shadow: 0 4px 18px rgba(20, 65, 143, .05);
}
.kb-side h4 { font-size: 15px; color: var(--c-primary); margin-bottom: 12px; letter-spacing: 1px; }
.kb-side ul { margin: 0; }
.kb-side ul li a {
  display: block; padding: 8px 0; font-size: 14.5px; color: var(--c-text-sub);
  border-bottom: 1px dashed var(--c-border);
}
.kb-side ul li:last-child a { border-bottom: 0; }
.kb-side ul li a:hover, .kb-side ul li a.on { color: var(--c-cyan); padding-left: 6px; }
.kb-side .sb-cta { background: var(--grad); border: 0; color: #fff; }
.kb-side .sb-cta h4 { color: rgba(255, 255, 255, .8); }
.kb-side .sb-cta b { display: block; font-size: 21px; margin: 4px 0 10px; letter-spacing: .5px; }
.kb-side .sb-cta a.btn-mini {
  display: inline-block; padding: 9px 20px; border-radius: 40px; background: #fff;
  color: var(--c-primary); font-size: 14px; font-weight: 600;
}

/* ---------- 正文排版 ---------- */
.kb-body { min-width: 0; font-size: 16.5px; line-height: 1.9; color: var(--c-text); }
.kb-body > *:first-child { margin-top: 0; }
.kb-body h2 {
  font-size: 27px; font-weight: 700; margin: 56px 0 20px; padding-left: 16px;
  border-left: 5px solid var(--c-cyan); line-height: 1.45;
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.kb-body h2:first-child { margin-top: 0; }
.kb-body h3 {
  font-size: 20px; font-weight: 700; margin: 34px 0 12px; color: var(--c-primary);
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.kb-body h4 { font-size: 17px; font-weight: 600; margin: 24px 0 8px; }
.kb-body p { margin: 15px 0; }
.kb-body ul, .kb-body ol { margin: 15px 0 15px 4px; }
.kb-body ul { list-style: none; }
.kb-body ul li { position: relative; padding-left: 22px; margin: 9px 0; }
.kb-body ul li::before {
  content: ""; position: absolute; left: 3px; top: 13px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--c-cyan);
}
.kb-body ol { list-style: decimal; padding-left: 22px; }
.kb-body ol li { margin: 9px 0; padding-left: 4px; }
.kb-body ol li::marker { color: var(--c-primary); font-weight: 700; }
.kb-body strong { color: var(--c-primary-dark); font-weight: 700; }
.kb-body em { font-style: normal; color: var(--c-primary); }
.kb-body a { color: var(--c-primary); border-bottom: 1px solid rgba(18, 194, 233, .5); }
.kb-body a:hover { color: var(--c-cyan); }
.kb-body hr { border: 0; height: 1px; background: var(--c-border); margin: 44px 0; }
.kb-body blockquote {
  margin: 24px 0; padding: 18px 24px; background: var(--c-bg-light);
  border-left: 4px solid var(--c-primary); border-radius: 0 10px 10px 0;
  color: var(--c-text-sub); font-size: 15.5px;
}
.kb-body blockquote p { margin: 6px 0; }
.kb-body code {
  background: var(--c-bg-light); border: 1px solid var(--c-border); border-radius: 5px;
  padding: 2px 7px; font-size: 14.5px; color: var(--c-primary-dark);
}
.kb-body pre {
  background: var(--c-bg-dark); color: #d8e6f5; padding: 20px 24px; border-radius: 12px;
  overflow-x: auto; margin: 22px 0; font-size: 14px; line-height: 1.75;
}

/* ---------- 表格 ---------- */
.kb-body .table-wrap { overflow-x: auto; margin: 24px 0; border-radius: 12px; border: 1px solid var(--c-border); }
.kb-body table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 620px; }
.kb-body thead th {
  background: var(--c-primary); color: #fff; font-weight: 600;
  padding: 13px 16px; text-align: left; white-space: nowrap; font-size: 15px;
}
.kb-body td { padding: 13px 16px; border-bottom: 1px solid var(--c-border); vertical-align: top; }
.kb-body tbody tr:nth-child(even) { background: var(--c-bg-light); }
.kb-body tbody tr:last-child td { border-bottom: 0; }

/* ---------- 卡片网格（能力 / 亮点） ---------- */
.kb-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 26px 0; }
.kb-cards.c2 { grid-template-columns: repeat(2, 1fr); }
.kb-card {
  border: 1px solid var(--c-border); border-radius: 14px; padding: 24px 24px 22px;
  background: #fff; transition: all .35s; box-shadow: 0 4px 18px rgba(20, 65, 143, .04);
}
.kb-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: rgba(18, 194, 233, .5); }
.kb-card .no { font-size: 13px; font-weight: 700; color: var(--c-cyan); letter-spacing: 2px; }
.kb-card h4 { margin: 8px 0 10px; font-size: 17.5px; color: var(--c-text); }
.kb-card p { font-size: 15px; color: var(--c-text-sub); margin: 0; line-height: 1.8; }

/* ---------- FAQ 手风琴 ---------- */
.kb-faq { margin: 26px 0; }
.faq-item { border: 1px solid var(--c-border); border-radius: 12px; margin-bottom: 12px; background: #fff; overflow: hidden; }
.faq-item .q {
  display: flex; gap: 14px; align-items: flex-start; cursor: pointer;
  padding: 18px 22px; font-size: 17px; font-weight: 600; color: var(--c-text);
  transition: background .25s;
}
.faq-item .q:hover { background: var(--c-bg-light); }
.faq-item .q .mark {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 6px; background: var(--c-primary);
  color: #fff; font-size: 13px; font-weight: 700; display: flex; align-items: center;
  justify-content: center; margin-top: 2px;
}
.faq-item .q .txt { flex: 1; }
.faq-item .q .arw { flex: 0 0 auto; transition: transform .3s; color: var(--c-text-sub); font-size: 13px; margin-top: 5px; }
.faq-item.open .q .arw { transform: rotate(180deg); }
.faq-item .a { display: none; padding: 2px 22px 20px 60px; color: var(--c-text-sub); font-size: 15.5px; line-height: 1.85; }
.faq-item .a > *:first-child { margin-top: 0; }
.faq-item.open .a { display: block; }
.faq-cat { font-size: 20px; font-weight: 700; color: var(--c-primary); margin: 40px 0 16px; padding-left: 14px; border-left: 4px solid var(--c-cyan); }

/* ---------- 行业表格 ---------- */
.ind-group { margin: 42px 0 0; }
.ind-group h3 { font-size: 20px; margin: 0 0 6px; }
.ind-group .gdesc { color: var(--c-text-sub); font-size: 15px; margin-bottom: 16px; }
.ind-table td:first-child { font-weight: 600; color: var(--c-primary-dark); white-space: nowrap; }

/* ---------- 首页服务入口卡（新增，沿用 service-card 视觉） ---------- */
.entry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.entry-card {
  display: block; border: 1px solid var(--c-border); border-radius: 16px; padding: 28px 26px;
  background: #fff; transition: all .35s; box-shadow: 0 4px 18px rgba(20, 65, 143, .04);
}
.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); border-color: transparent; }
.entry-card .ei {
  width: 54px; height: 54px; border-radius: 14px; background: var(--grad);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.entry-card .ei svg { width: 27px; height: 27px; stroke: #fff; fill: none; }
.entry-card h3 { font-size: 18.5px; margin-bottom: 8px; }
.entry-card p { font-size: 14.5px; color: var(--c-text-sub); line-height: 1.8; }
.entry-card .go { display: inline-block; margin-top: 14px; font-size: 14px; color: var(--c-cyan); font-weight: 600; }

/* ---------- 页内锚点导航 ---------- */
.anchor-nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 34px; }
.anchor-nav a {
  padding: 8px 18px; border-radius: 40px; border: 1px solid var(--c-border);
  font-size: 14.5px; color: var(--c-text-sub); background: #fff;
}
.anchor-nav a:hover { border-color: var(--c-cyan); color: var(--c-cyan); background: rgba(18, 194, 233, .06); }

/* ---------- 提示条 ---------- */
.kb-note {
  margin: 24px 0; padding: 18px 22px; border-radius: 12px;
  background: rgba(18, 194, 233, .08); border: 1px solid rgba(18, 194, 233, .3);
  font-size: 15px; color: var(--c-primary-dark);
}
.kb-note b { color: var(--c-primary); }

/* ---------- 首页六大服务卡 ---------- */
.svc-six .service-grid .service-card { width: calc((100% - 60px) / 3); padding: 40px 32px 36px; }
.service-card .more { display: inline-block; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--c-cyan); }
.service-card:hover .more { color: var(--c-primary); }
.svc-info .more { display: inline-block; margin-top: 18px; font-size: 14.5px; font-weight: 600; color: var(--c-cyan); }
.svc-info .more:hover { color: var(--c-primary); }

/* ---------- 首页行业覆盖标签 ---------- */
.kb-industries .ind-tags { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; max-width: 1180px; margin: 0 auto; }
.kb-industries .ind-tags a {
  display: inline-block; padding: 10px 20px; border-radius: 40px; background: #fff;
  border: 1px solid var(--c-border); font-size: 15px; color: var(--c-text-sub);
  transition: all .3s;
}
.kb-industries .ind-tags a:hover {
  border-color: transparent; background: var(--grad); color: #fff;
  transform: translateY(-2px); box-shadow: 0 8px 20px rgba(20, 65, 143, .18);
}

/* ---------- 页脚备案 ---------- */
.footer-bottom .f-beian { color: rgba(255, 255, 255, .55); }
.footer-bottom .f-beian a { color: rgba(255, 255, 255, .65); }
.footer-bottom .f-beian a:hover { color: var(--c-cyan); }

/* ---------- 响应式 ---------- */
/* 导航增至 8 项后，窄屏适当收紧，避免与 LOGO / 电话挤在一起 */
@media (max-width: 1360px) and (min-width: 993px) {
  .header .nav a { padding: 10px 14px; font-size: 16px; }
}
@media (max-width: 1200px) {
  .svc-six .service-grid .service-card { width: calc((100% - 30px) / 2); }
  .kb-layout { grid-template-columns: 220px 1fr; gap: 34px; }
  .kb-cards { grid-template-columns: repeat(2, 1fr); }
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .kb-layout { grid-template-columns: 1fr; }
  .kb-side { position: static; margin-bottom: 8px; }
  .kb-side .sb-card { display: inline-block; vertical-align: top; margin-right: 14px; }
}
@media (max-width: 768px) {
  .svc-six .service-grid .service-card { width: 100%; padding: 34px 24px 30px; }
  .kb-wrap { padding: 46px 0 64px; }
  .kb-body { font-size: 16px; }
  .kb-body h2 { font-size: 22px; margin: 40px 0 16px; }
  .kb-body h3 { font-size: 18px; }
  .kb-cards, .kb-cards.c2 { grid-template-columns: 1fr; }
  .entry-grid { grid-template-columns: 1fr; }
  .faq-item .a { padding-left: 22px; }
  .kb-side .sb-card { display: block; margin-right: 0; }
}

/* ================= 资讯文章正文补充（2026-10-16，配合 article.php 服务端渲染） ================= */
/* 文章正文含对照表 / 有序列表 / 行内代码，原站 .article-body 未覆盖这些元素 */
.article-body { overflow-x: auto; }
.article-body table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 24px 0; min-width: 560px; }
.article-body thead th {
  background: var(--c-primary); color: #fff; font-weight: 600;
  padding: 13px 16px; text-align: left; font-size: 15px;
}
.article-body td { padding: 13px 16px; border-bottom: 1px solid var(--c-border); vertical-align: top; }
.article-body tbody tr:nth-child(even) { background: var(--c-bg-light); }
.article-body tbody tr:last-child td { border-bottom: 0; }
.article-body ol { margin: 0 0 20px; padding-left: 24px; }
.article-body ol li { font-size: 17px; color: var(--c-text-sub); margin-bottom: 12px; }
.article-body strong { color: var(--c-text); font-weight: 700; }
.article-body code {
  padding: 2px 7px; border-radius: 6px; background: rgba(20, 65, 143, .07);
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 15px; color: var(--c-primary);
}

/* ===================== AI 生成内容显式标识（S2 / 7.4） ===================== */
.ai-notice {
  margin: 0 0 22px; padding: 14px 18px; border-radius: 10px;
  background: rgba(20, 65, 143, .05); border: 1px solid rgba(20, 65, 143, .16);
  border-left: 4px solid var(--c-primary);
}
.ai-notice b { display: block; font-size: 14px; color: var(--c-primary); margin-bottom: 6px; }
.ai-notice p { margin: 0; font-size: 13.5px; line-height: 1.75; color: var(--c-sub); }

/* ===================== 隐私政策页 ===================== */
.privacy-body h2 { margin: 30px 0 12px; font-size: 19px; }
.privacy-body h3 { margin: 22px 0 10px; font-size: 16px; }
.privacy-body ul { padding-left: 22px; }
.privacy-body table { min-width: 520px; }

/* ===================== 表单同意勾选 ===================== */
.consent-row {
  display: flex; align-items: flex-start; gap: 9px;
  margin: 14px 0 18px; font-size: 13.5px; line-height: 1.7; color: var(--c-sub);
}
.consent-row input[type="checkbox"] { margin-top: 3px; flex: none; width: 15px; height: 15px; }
.consent-row a { color: var(--c-primary); text-decoration: underline; }