/* ================================================================
   开张 · 知识卡片正文（Markdown）排版
   严格遵循 IDE 工具感：紧凑、文本为主、Mermaid 代替插画
   ================================================================ */

.prose {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-1);
}

.prose .card-meta-bar {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-size: 11px; color: var(--text-3);
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.prose .card-meta-bar .mb {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 6px;
  background: var(--panel-2); border: 1px solid var(--border);
}
.prose .card-meta-bar .mb.diff { color: var(--warn); }
.prose .card-meta-bar .mb.ok   { color: var(--ok); }
.prose .card-meta-bar .mb.date { color: var(--text-3); }

.prose h1 {
  font-size: 24px; font-weight: 600;
  margin: 0 0 18px;
  letter-spacing: -.01em;
  color: var(--text-1);
}
.prose h2 {
  font-size: 15.5px; font-weight: 600;
  margin: 28px 0 10px;
  padding-left: 10px;
  border-left: 3px solid var(--primary);
  color: var(--text-1);
}
.prose h3 {
  font-size: 14px; font-weight: 600;
  margin: 20px 0 8px;
  color: var(--text-1);
}
.prose h4 { font-size: 13.5px; font-weight: 600; margin: 16px 0 6px; }
.prose p { margin: 8px 0; color: var(--text-1); }
.prose blockquote {
  margin: 12px 0;
  padding: 10px 14px;
  background: var(--panel-2);
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
  color: var(--text-2);
  font-size: 13px;
}
.prose ul, .prose ol { padding-left: 22px; margin: 8px 0; }
.prose li { margin: 4px 0; color: var(--text-2); }
.prose li::marker { color: var(--text-3); }

.prose strong { color: var(--text-1); font-weight: 600; }
.prose em { color: var(--text-2); }

.prose code {
  background: rgba(255,255,255,.06);
  color: #e6e2dc;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: .92em;
}
body.theme-light .prose code { background: rgba(0,0,0,.06); color: #2a1d10; }

.prose pre {
  margin: 12px 0;
  padding: 12px 14px;
  background: #0d0f13;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.65;
}
.prose pre code { background: transparent; padding: 0; color: #d6e0d0; }

.prose hr {
  border: 0; border-top: 1px solid var(--border);
  margin: 24px 0;
}

/* Tables */
.prose table {
  width: 100%; border-collapse: collapse;
  font-size: 12.5px; margin: 12px 0;
  border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden;
}
.prose th, .prose td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
.prose th:last-child, .prose td:last-child { border-right: 0; }
.prose tr:last-child td { border-bottom: 0; }
.prose th {
  background: var(--panel-2);
  color: var(--text-1);
  font-weight: 600;
  font-size: 12px;
}
.prose tbody tr:nth-child(even) { background: rgba(255,255,255,.015); }

/* Front matter highlight box */
.prose .frontmatter {
  background: linear-gradient(180deg, rgba(59,130,246,.05), transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin: 8px 0 20px;
  font-size: 12px;
  color: var(--text-2);
}

/* Mermaid */
.prose .mermaid {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin: 14px 0;
  text-align: center;
  overflow-x: auto;
}

/* 七段式分节卡片化（更视觉化的卡片) */
.prose .seven-section h2 + p,
.prose h2 + p {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}

/* card foot */
.prose .card-foot {
  margin-top: 28px; padding: 12px 14px;
  border-top: 1px dashed var(--border);
  display: flex; flex-wrap: wrap; gap: 8px;
  color: var(--text-3); font-size: 11px;
}

.prose .ask-ai-quote {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px; margin: 12px 0;
  background: rgba(59,130,246,.08);
  border: 1px solid rgba(59,130,246,.25);
  border-radius: 10px;
  color: var(--primary-2);
  cursor: pointer;
}
.prose .ask-ai-quote:hover { background: rgba(59,130,246,.16); }
.prose .ask-ai-quote::before {
  content: "→"; font-weight: 600;
}

/* External link */
.prose a[href^="http"]::after {
  content: " ↗"; color: var(--text-3); font-size: .85em;
}

/* phase header inside center */
.phase-header {
  padding: 24px clamp(20px, 4vw, 40px) 12px;
}
.phase-header .px-large {
  font-size: 11px; color: var(--text-3); letter-spacing: .12em;
}
.phase-header h2 {
  margin: 6px 0 4px; font-size: 22px; font-weight: 600;
  display: flex; align-items: center; gap: 10px; border: 0; padding: 0;
}
.phase-header .goal {
  color: var(--text-2); font-size: 13px;
  padding: 10px 12px; margin: 12px 0;
  background: var(--panel-2);
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
}
.phase-header h3 { margin: 18px 0 8px; font-size: 13.5px; color: var(--text-2); font-weight: 500; letter-spacing: .04em; }
.phase-card-list { padding: 0 clamp(20px, 4vw, 40px); }
.phase-card-list .pcli {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; margin: 6px 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all .12s var(--easing);
}
.phase-card-list .pcli:hover { border-color: var(--border-strong); transform: translateX(2px); }
.phase-card-list .pcli .num { color: var(--text-3); font-size: 11px; font-variant-numeric: tabular-nums; width: 36px; flex-shrink: 0; }
.phase-card-list .pcli .pct { flex: 1; font-size: 13px; }
.phase-card-list .pcli .pd { color: var(--text-3); font-size: 11px; }
.phase-card-list .pcli .pdone { color: var(--ok); font-size: 11px; }