/* =============================================================
   Moges PMS5 知识库 前台样式
   GEO 友好：高可读性、语义化排版、移动端适配
   ============================================================= */
:root {
  --primary: #1a5eff;
  --primary-dark: #1247c9;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --text: #1f2733;
  --text-soft: #5c6b7f;
  --border: #e5eaf1;
  --radius: 10px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ── 头部 ─────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 10;
}
.header-inner {
  display: flex; align-items: center; gap: 24px;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-logo { width: 32px; height: 32px; border-radius: 8px; object-fit: contain; }
.brand-text { font-weight: 700; font-size: 17px; white-space: nowrap; }
.main-nav { display: flex; gap: 4px; flex: 1; }
.main-nav a {
  padding: 6px 12px; border-radius: 8px; color: var(--text-soft); font-size: 15px;
}
.main-nav a:hover { color: var(--primary); text-decoration: none; background: var(--bg-soft); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-form { display: flex; }
.search-form input {
  border: 1px solid var(--border); border-right: none; border-radius: 8px 0 0 8px;
  padding: 7px 12px; width: 200px; font-size: 14px; outline: none;
}
.search-form input:focus { border-color: var(--primary); }
.search-form button {
  border: 1px solid var(--border); border-left: none; border-radius: 0 8px 8px 0;
  background: var(--bg-soft); color: var(--text); padding: 7px 14px; cursor: pointer;
}
.search-form button:hover { color: var(--primary); }

.btn {
  display: inline-block; padding: 9px 20px; border-radius: 8px;
  font-size: 15px; font-weight: 500; cursor: pointer; border: none;
}
.btn-primary { background: var(--primary); color: #fff !important; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; }
.btn-outline { border: 1px solid var(--primary); color: var(--primary) !important; background: transparent; }
.btn-outline:hover { background: var(--bg-soft); text-decoration: none; }
.btn-ghost { color: var(--text-soft) !important; }
.btn-ghost:hover { color: var(--primary) !important; text-decoration: none; }
.btn-block { width: 100%; text-align: center; }

/* 汉堡按钮（默认隐藏，移动端显示）*/
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  flex-direction: column;
  width: 40px; height: 40px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--bg); cursor: pointer; gap: 4px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px; background: var(--text);
  border-radius: 2px; transition: transform .2s ease, opacity .2s ease;
}

/* ── 主体 ─────────────────────────────── */
.main { padding: 28px 20px 60px; min-height: 60vh; }

/* 面包屑 */
.breadcrumb { font-size: 14px; color: var(--text-soft); margin-bottom: 18px; }
.breadcrumb a { color: var(--text-soft); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

.page-title { font-size: 30px; font-weight: 700; margin-bottom: 8px; }
.page-desc { color: var(--text-soft); font-size: 16px; margin-bottom: 28px; }

/* Hero */
.hero { background: linear-gradient(135deg, #f0f5ff 0%, #e8efff 100%); border-radius: 16px; padding: 52px 40px; margin-bottom: 40px; }
.hero-title { font-size: 34px; font-weight: 800; margin-bottom: 12px; }
.hero-sub { font-size: 17px; color: var(--text-soft); max-width: 680px; margin-bottom: 24px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 20px; font-size: 13px; color: var(--text-soft); }

/* 区块 */
.block { margin-bottom: 44px; }
.block-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 16px; }
.block-head h2 { font-size: 22px; font-weight: 700; }
.block-head .more { font-size: 14px; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card {
  display: block; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; color: var(--text); transition: box-shadow .15s, transform .15s;
  background: var(--bg);
}
.card:hover { text-decoration: none; box-shadow: 0 6px 20px rgba(20,40,80,.08); transform: translateY(-2px); }
.card h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.card p { color: var(--text-soft); font-size: 14px; margin-bottom: 8px; }
.card-tag {
  display: inline-block; font-size: 12px; color: var(--primary);
  background: #eef3ff; border-radius: 4px; padding: 1px 8px; margin-bottom: 8px;
}
.card-date { font-size: 12px; color: #9aa7b8; }

.link-list { list-style: none; }
.link-list li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 11px 4px; border-bottom: 1px solid var(--border);
}
.link-list li:last-child { border-bottom: none; }
.link-list a { font-size: 15px; }
.list-date { font-size: 12px; color: #9aa7b8; white-space: nowrap; }

/* FAQ 内联 */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg);
}
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: 16px;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "Q"; color: var(--primary); font-weight: 800; margin-right: 4px; }
.faq-meta { font-size: 12px; color: #9aa7b8; font-weight: 400; }
.faq-a { padding: 0 20px 18px 44px; }
.faq-more { margin-top: 10px; font-size: 14px; }
.faq-preview { list-style: none; columns: 2; gap: 24px; }
.faq-preview li { padding: 8px 0; border-bottom: 1px dashed var(--border); break-inside: avoid; }
.faq-preview a { font-size: 15px; }
@media (max-width: 720px) { .faq-preview { columns: 1; } }

/* 文章详情 */
.article { max-width: 820px; }
.article-head { margin-bottom: 24px; }
.article-title { font-size: 30px; font-weight: 800; line-height: 1.35; margin-bottom: 10px; }
.article-meta { display: flex; gap: 14px; align-items: center; color: var(--text-soft); font-size: 13px; }
.article-meta time { color: var(--text-soft); }
.article-tags { margin-top: 24px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag { font-size: 13px; color: var(--text-soft); background: var(--bg-soft); padding: 2px 10px; border-radius: 20px; }

/* Markdown 正文 */
.markdown-body { font-size: 16px; color: var(--text); }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  margin: 28px 0 12px; font-weight: 700; line-height: 1.4;
}
.markdown-body h1 { font-size: 26px; }
.markdown-body h2 { font-size: 22px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.markdown-body h3 { font-size: 18px; }
.markdown-body p { margin-bottom: 14px; }
.markdown-body ul, .markdown-body ol { margin: 0 0 14px 22px; }
.markdown-body li { margin-bottom: 4px; }
.markdown-body blockquote {
  border-left: 4px solid var(--primary); background: var(--bg-soft);
  padding: 12px 16px; margin: 0 0 14px; border-radius: 0 8px 8px 0; color: var(--text-soft);
}
.markdown-body code {
  background: #eef1f6; padding: 2px 6px; border-radius: 4px;
  font-size: .9em; font-family: "SFMono-Regular", Consolas, monospace;
}
.markdown-body pre {
  background: #0f172a; color: #e2e8f0; padding: 16px 18px; border-radius: 10px;
  overflow-x: auto; margin: 0 0 16px;
}
.markdown-body pre code { background: none; color: inherit; padding: 0; }
.table-wrap { overflow-x: auto; margin: 0 0 16px; }
.markdown-body table { border-collapse: collapse; width: 100%; font-size: 15px; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.markdown-body th { background: var(--bg-soft); font-weight: 600; }
.markdown-body hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.markdown-body img { border-radius: 8px; }

/* 搜索页 */
.search-box { display: flex; max-width: 560px; margin-bottom: 28px; }
.search-box input {
  flex: 1; border: 1px solid var(--border); border-radius: 8px 0 0 8px;
  padding: 10px 14px; font-size: 15px; outline: none;
}
.search-box input:focus { border-color: var(--primary); }
.search-box button {
  border-radius: 0 8px 8px 0; border: 1px solid var(--primary);
  background: var(--primary); color: #fff; padding: 10px 22px; cursor: pointer;
}

/* CTA */
.cta {
  margin-top: 44px; background: var(--bg-soft); border-radius: 14px;
  padding: 32px; text-align: center;
}
.cta h2 { font-size: 20px; margin-bottom: 6px; }
.cta p { color: var(--text-soft); margin-bottom: 16px; }

/* 404 */
.notfound { text-align: center; padding: 60px 20px; }
.notfound h1 { font-size: 64px; color: var(--primary); }
.notfound p { color: var(--text-soft); margin-bottom: 20px; }

/* 空状态 */
.empty { color: #9aa7b8; text-align: center; padding: 24px 0; }
.muted { color: #9aa7b8; }

/* ── 页脚 ─────────────────────────────── */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); padding: 36px 0 20px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; margin-bottom: 24px; }
.footer-col h4 { font-size: 15px; margin-bottom: 10px; }
.footer-col p { font-size: 13px; color: var(--text-soft); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 6px; }
.footer-col a { font-size: 14px; color: var(--text-soft); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  border-top: 1px solid var(--border); padding-top: 16px;
  font-size: 12px; color: #9aa7b8;
}
@media (max-width: 720px) {
  .container, .main { padding-left: 16px; padding-right: 16px; }

  /* 头部：品牌 + 汉堡一行，菜单/搜索收进可展开面板 */
  .header-inner {
    display: grid; grid-template-columns: 1fr auto;
    align-items: center; gap: 8px 12px;
    height: auto; padding: 8px 0;
  }
  .nav-toggle { display: inline-flex; }
  .brand-text { font-size: 16px; }
  .main-nav {
    grid-column: 1 / -1; display: none; flex: none;
    flex-direction: column; width: 100%; gap: 2px;
    border-top: 1px solid var(--border); margin-top: 4px; padding-top: 8px;
  }
  .main-nav a { padding: 10px 6px; font-size: 15px; border-radius: 8px; }
  .header-actions {
    grid-column: 1 / -1; display: none; width: 100%;
    flex-direction: column; gap: 10px; padding: 10px 0 6px;
  }
  .search-form { width: 100%; }
  .search-form input { flex: 1; width: 100%; min-width: 0; }
  .site-header.nav-open .main-nav { display: flex; }
  .site-header.nav-open .header-actions { display: flex; }

  /* 汉堡 → 关闭叉 */
  .nav-toggle.on span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle.on span:nth-child(2) { opacity: 0; }
  .nav-toggle.on span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  /* 排版缩放 */
  .page-title { font-size: 24px; }
  .page-desc { font-size: 15px; }
  .hero { padding: 28px 20px; margin-bottom: 28px; }
  .hero-title { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .block-head h2 { font-size: 19px; }
  .card-grid { grid-template-columns: 1fr; }
  .article-title { font-size: 24px; }
  .article-meta { flex-wrap: wrap; gap: 8px 14px; }
  .faq-item summary { padding: 14px 16px; font-size: 15px; }
  .faq-a { padding: 0 16px 16px 34px; }
  .link-list li { flex-wrap: wrap; gap: 4px; }
  .breadcrumb { overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .search-box { max-width: none; }
  .cta { padding: 24px 18px; }
  .notfound h1 { font-size: 46px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .main { padding-top: 20px; padding-bottom: 48px; }
}