/* 云用户帮助中心 — JmCloud 浅色品牌 */
:root {
  --bg: #F5F7FA;
  --panel: #FFFFFF;
  --text: #2C2E35;
  --muted: #6B7280;
  --accent: #00AEEF;
  --accent-soft: #E6F7FD;
  --ok: #16A34A;
  --warn: #D97706;
  --err: #DC2626;
  --border: #E5E9F0;
  --callout: #DC2626;
  --shadow: 0 1px 2px rgba(44, 46, 53, 0.06);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: #0098D4; text-decoration: underline; }

.help-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 20;
}
.help-top .brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: inherit;
}
.help-top .brand-mark img {
  height: 28px;
  width: auto;
}
.help-top .brand-mark .brand-suffix {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
}
.help-top .actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
}
.btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }

.help-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - 52px);
}
.help-nav {
  border-right: 1px solid var(--border);
  background: var(--panel);
  padding: 1rem 0.75rem;
  overflow: auto;
  position: sticky;
  top: 52px;
  height: calc(100vh - 52px);
}
.help-nav h3 {
  margin: 0 0 0.75rem 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.help-nav a {
  display: block;
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.92rem;
  margin-bottom: 0.15rem;
}
.help-nav a:hover { background: var(--accent-soft); text-decoration: none; }
.help-nav a.active {
  background: var(--accent-soft);
  color: var(--text);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--accent);
}

.help-main {
  padding: 1.25rem 1.5rem 3rem;
  max-width: 920px;
}
.help-main h1 { margin: 0 0 0.5rem; font-size: 1.55rem; }
.help-main h2 {
  margin: 1.75rem 0 0.65rem;
  font-size: 1.15rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.35rem;
}
.help-main h3 { margin: 1.15rem 0 0.45rem; font-size: 1.02rem; }
.help-main p, .help-main li { line-height: 1.65; color: var(--text); }
.help-main .lead { color: var(--muted); margin-bottom: 1.25rem; }
.help-main ol, .help-main ul { padding-left: 1.35rem; }
.help-main li { margin: 0.35rem 0; }

.note, .warn, .danger {
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 1rem 0;
  border: 1px solid var(--border);
  font-size: 0.92rem;
  line-height: 1.55;
}
.note { background: var(--accent-soft); border-color: rgba(0, 174, 239, 0.35); }
.warn { background: rgba(217, 119, 6, 0.08); border-color: rgba(217, 119, 6, 0.35); }
.danger { background: rgba(220, 38, 38, 0.06); border-color: rgba(220, 38, 38, 0.35); }
.note strong, .warn strong, .danger strong { display: block; margin-bottom: 0.25rem; }

.cmd-block {
  margin: 0.75rem 0 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #F8FAFC;
}
.cmd-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0.65rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}
.cmd-block pre {
  margin: 0;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.88rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
}
.cmd-block .copy-btn {
  font-size: 0.78rem;
  padding: 0.2rem 0.5rem;
}

.expect {
  margin: 0.35rem 0 1rem;
  padding: 0.55rem 0.75rem;
  background: rgba(22, 163, 74, 0.08);
  border-left: 3px solid var(--ok);
  font-size: 0.88rem;
  color: var(--muted);
}
.expect b { color: var(--ok); }

table.help-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 1rem;
  font-size: 0.9rem;
}
table.help-table th, table.help-table td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
table.help-table th { background: var(--bg); color: var(--muted); font-weight: 600; }

.ui-shot {
  margin: 1rem 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.ui-shot figcaption {
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.ui-mock {
  position: relative;
  padding: 0.85rem;
  min-height: 120px;
}
.ui-mock .bar {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
  padding: 0.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
}
.ui-mock .pill {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}
.ui-mock .pill.hi {
  border-color: var(--callout);
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.2);
  position: relative;
}
.ui-mock .pill.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.ui-mock .tag {
  position: absolute;
  background: var(--callout);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.ui-mock .row-line {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 2.2fr;
  gap: 0.35rem;
  padding: 0.45rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.78rem;
  background: var(--bg);
  align-items: center;
}
.ui-mock .modal-box {
  max-width: 360px;
  margin: 0.5rem auto;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  font-size: 0.85rem;
}
.ui-mock .modal-box label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin: 0.45rem 0 0.2rem;
}
.ui-mock .modal-box .field {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  background: var(--panel);
}
.ui-mock .modal-box .field.hi {
  border-color: var(--callout);
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.2);
}
.toc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}
.toc-cards a {
  display: block;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow);
}
.toc-cards a:hover { border-color: var(--accent); text-decoration: none; }
.toc-cards a strong { display: block; color: var(--accent); margin-bottom: 0.25rem; }
.toc-cards a span { font-size: 0.85rem; color: var(--muted); }

@media (max-width: 800px) {
  .help-shell { grid-template-columns: 1fr; }
  .help-nav {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}