/* AI-Docs 知识库 Web — 移动优先样式 */
:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1f2329;
  --muted: #8a8f99;
  --border: #e5e7eb;
  --primary: #2563eb;
  --new: #ef4444;
  --unread: #f59e0b;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px; line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, select { font: inherit; }

.center-box { display: flex; justify-content: center; align-items: center; min-height: 70vh; }

/* 登录 */
.login-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 32px 28px; width: min(360px, 90vw);
  display: flex; flex-direction: column; gap: 14px;
}
.login-card h1 { margin: 0 0 6px; font-size: 20px; text-align: center; }
.login-card input {
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
}
.login-card button {
  padding: 10px; border: none; border-radius: 8px;
  background: var(--primary); color: #fff;
}
.error { color: var(--new); margin: 0; font-size: 13px; }

/* 顶栏 */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 10px 14px;
}
.topbar-title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
.list-page .topbar-title { flex: 0 0 auto; }
.search {
  flex: 1; min-width: 0; padding: 7px 12px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg);
}
.btn {
  padding: 7px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card); color: var(--text); white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }

/* 状态 tab */
.status-tabs {
  display: flex; gap: 4px; padding: 8px 14px;
  background: var(--card); border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.tab {
  border: none; background: none; padding: 6px 12px; border-radius: 8px;
  color: var(--muted); white-space: nowrap;
}
.tab.active { background: var(--primary); color: #fff; }
.badge {
  display: inline-block; margin-left: 5px; padding: 0 6px;
  background: #c3c8d0; color: #fff; border-radius: 9px;
  font-size: 11px; line-height: 17px;
}
.badge-all { background: var(--primary); }
.badge-new, .badge-unread { background: var(--new); }
.tab.active .badge { background: rgba(255,255,255,.3); }

/* 筛选面板 */
.filter-panel {
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 10px 14px;
}
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.filter-row select, .filter-row input {
  padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg);
}
.tag-group { margin: 6px 0; }
.tag-group-name { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.tag-chip {
  display: inline-block; margin: 2px 4px 2px 0; padding: 2px 10px;
  border: 1px solid var(--border); border-radius: 12px;
  font-size: 13px; color: var(--muted); cursor: pointer; user-select: none;
}
.tag-chip.on { background: var(--primary); border-color: var(--primary); color: #fff; }
.tag-chip.small { padding: 0 8px; font-size: 12px; cursor: default; }
.tag-chip.small.clickable { cursor: pointer; }
.tag-chip.small.clickable:hover { border-color: var(--primary); color: var(--primary); }
.tag-chip.small.clickable.on:hover { color: #fff; }

/* 设置页 */
.settings-body {
  display: flex; flex-direction: column; align-items: center;
  gap: 20px; padding: 40px 14px;
}
.ok-msg { color: #16a34a; margin: 0; font-size: 13px; }
.whoami { color: var(--muted); font-size: 13px; white-space: nowrap; }

/* 密码框显示/隐藏切换 */
.pw-field { position: relative; }
.pw-field input { width: 100%; padding-right: 52px; }
.pw-toggle {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  border: none; background: none; color: var(--muted);
  padding: 4px; display: flex; align-items: center;
}
.pw-toggle svg { width: 17px; height: 17px; display: block; }
/* 覆盖 .login-card button 的蓝底白字按钮样式：图标直接融入输入框背景，无悬停变色 */
.login-card .pw-toggle,
.login-card .pw-toggle:hover {
  background: none; color: var(--muted); padding: 4px; border-radius: 0;
}

/* 账户管理 */
.users-card h1 { margin: 0 0 6px; font-size: 20px; text-align: center; }
.user-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0; border-bottom: 1px solid var(--border);
}
.user-name { font-weight: 500; }
.admin-badge {
  margin-left: 6px; font-size: 11px; color: var(--primary);
  border: 1px solid var(--primary); border-radius: 4px; padding: 0 4px;
}
.add-user { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.add-user input { padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; }
.add-user .pw-field input { padding-right: 52px; }
.admin-check { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.small-btn { padding: 4px 10px; font-size: 13px; }

/* 卡片已读切换 */
.read-toggle {
  margin-left: auto; border: none; background: none;
  color: var(--muted); font-size: 12px; padding: 0 4px;
}
.read-toggle:hover { color: var(--primary); }

/* 文档列表 */
.doc-list { max-width: 860px; margin: 0 auto; padding: 10px 14px 40px; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }
.doc-item {
  display: block; background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; color: var(--text);
}
.doc-item:hover { border-color: var(--primary); }
.doc-item-tags { display: flex; flex-wrap: wrap; align-items: center; }
.doc-item-head { display: flex; align-items: baseline; gap: 6px; }
.doc-title { font-weight: 600; flex: 1; min-width: 0; }
.doc-date { color: var(--muted); font-size: 12px; white-space: nowrap; }
.doc-summary {
  margin: 4px 0; color: var(--muted); font-size: 13px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.dot { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto; align-self: center; }
.dot.new { background: var(--new); }
.dot.unread { background: var(--unread); }
.type-badge {
  font-size: 11px; color: var(--muted); border: 1px solid var(--border);
  border-radius: 4px; padding: 0 5px; margin-right: 4px;
}
.load-more { display: block; margin: 14px auto; }

/* 阅读页 */
.doc-body { max-width: 860px; margin: 0 auto; padding: 14px 14px 60px; }
.doc-meta { margin-bottom: 10px; color: var(--muted); font-size: 13px; }
.dates { margin-left: 6px; }
.markdown-body {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 18px 20px; overflow-wrap: break-word;
}
.markdown-body img { max-width: 100%; }
.markdown-body pre { overflow-x: auto; background: var(--bg); padding: 10px; border-radius: 8px; }
.markdown-body code { font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
.markdown-body table { border-collapse: collapse; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 4px 10px; }
.markdown-body blockquote { margin-left: 0; padding-left: 12px; border-left: 3px solid var(--border); color: var(--muted); }
.wikilink-missing { color: var(--muted); }
.doc-nav {
  display: flex; justify-content: space-between; gap: 10px;
  margin-top: 16px; font-size: 14px;
}
.doc-nav a { max-width: 48%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 章节目录：浮动按钮 + 右侧抽屉 */
.toc-fab {
  position: fixed; right: 16px; bottom: 22px; z-index: 30;
  padding: 9px 16px; border-radius: 20px;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  box-shadow: 0 2px 10px rgba(0,0,0,.12); font-size: 14px;
}
.toc-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.3); z-index: 40; }
.toc-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 50;
  width: min(300px, 82vw); background: var(--card);
  box-shadow: -2px 0 12px rgba(0,0,0,.15);
  transform: translateX(105%); transition: transform .2s ease;
  overflow-y: auto; padding: 14px 16px;
}
.toc-drawer.open { transform: none; }
.toc-head {
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; margin-bottom: 8px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.toc-close { border: none; background: none; font-size: 20px; color: var(--muted); padding: 0 4px; }
.toc-drawer a { display: block; padding: 5px 0; color: var(--text); font-size: 14px; cursor: pointer; }
.toc-drawer a:hover { color: var(--primary); }
.toc-l2 { padding-left: 14px; font-size: 13px; }
.toc-l3 { padding-left: 28px; font-size: 13px; color: var(--muted); }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { scroll-margin-top: 60px; }

@media (max-width: 640px) {
  /* header 始终保持单行：隐藏标题与账户名，压缩按钮 */
  .topbar { flex-wrap: nowrap; gap: 6px; padding: 8px 10px; }
  .list-page .topbar-title, .whoami { display: none; }
  .search { order: 0; flex-basis: auto; padding: 6px 10px; }
  .topbar .btn { padding: 6px 8px; font-size: 13px; }
}