/* =====================================================================
   trauma-skills-cases-visual-v2 · design layer
   纸白 paper / 青绿 teal-green / 金色 gold —— 沿用站点现有 token
   视觉优先：留白 whitespace、柔和投影 soft shadow、紧凑导航
   teacher-review draft · 待临床教师复核
   ===================================================================== */

:root {
  --v2-paper: #f6f1e8;          /* 纸白 */
  --v2-panel: #fffdf8;          /* 卡片底 */
  --v2-ink: #1f2937;
  --v2-muted: #64717f;
  --v2-line: #ded4c3;
  --v2-teal: #1f6f78;           /* 青绿主色 */
  --v2-teal-deep: #17565d;
  --v2-teal-soft: #e7f0ee;      /* 浅青绿底 */
  --v2-gold: #a96d16;           /* 金色点缀 */
  --v2-gold-soft: #f7ecd4;      /* 浅金底 */
  --v2-shadow: 0 16px 40px rgba(31, 42, 55, 0.08);
  --v2-shadow-sm: 0 6px 18px rgba(31, 42, 55, 0.07);
  --v2-radius: 14px;
  --v2-gap: 1.75rem;            /* 留白基线 */
}

/* ---------- 技能：紧凑五节点导航 ---------- */
.v2-skillnav {
  background: var(--v2-panel);
  border: 1px solid var(--v2-line);
  border-radius: var(--v2-radius);
  box-shadow: var(--v2-shadow);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  margin: var(--v2-gap) 0;
}

.v2-nodes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}

.v2-node-tab {
  appearance: none;
  border: 1px solid var(--v2-line);
  background: var(--v2-paper);
  color: var(--v2-ink);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.v2-node-tab .v2-num {
  display: inline-grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--v2-teal-soft);
  color: var(--v2-teal-deep);
  font-weight: 700;
  font-size: 0.8rem;
}

.v2-node-tab[aria-selected="true"] {
  background: var(--v2-teal);
  border-color: var(--v2-teal);
  color: #fff;
  box-shadow: var(--v2-shadow-sm);
}

.v2-node-tab[aria-selected="true"] .v2-num {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.v2-node-tab:hover { border-color: var(--v2-teal); }

/* 当前节点面板：单视觉 + 三短重点 */
.v2-stage { margin-top: 0.25rem; }

.v2-panel {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}

@media (max-width: 860px) {
  .v2-panel { grid-template-columns: 1fr; }
}

.v2-visual {
  margin: 0;
  background: var(--v2-paper);
  border: 1px solid var(--v2-line);
  border-radius: var(--v2-radius);
  overflow: hidden;
  box-shadow: var(--v2-shadow-sm);
}

.v2-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.v2-visual figcaption {
  padding: 0.9rem 1.1rem 1.1rem;
  font-size: 0.88rem;
  color: var(--v2-muted);
  border-top: 1px solid var(--v2-line);
}

.v2-visual .v2-credit {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8rem;
}

/* 三条短重点：金色左沿卡片 */
.v2-points {  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.v2-points li {
  background: var(--v2-paper);
  border: 1px solid var(--v2-line);
  border-left: 4px solid var(--v2-gold);
  border-radius: 0 10px 10px 0;
  padding: 0.8rem 1rem;
  box-shadow: var(--v2-shadow-sm);
}

.v2-points .zh { display: block; font-weight: 600; color: var(--v2-ink); }
.v2-points .en { display: block; margin-top: 0.25rem; font-size: 0.88rem; color: var(--v2-muted); }

/* 准备 / 解释 / 证据：details 展开 */
.v2-fold {
  border: 1px solid var(--v2-line);
  border-radius: 10px;
  background: var(--v2-paper);
  margin-bottom: 0.7rem;
  overflow: hidden;
}

.v2-fold summary {
  cursor: pointer;
  padding: 0.8rem 1rem;
  font-weight: 600;
  color: var(--v2-teal-deep);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.v2-fold summary::-webkit-details-marker { display: none; }

.v2-fold summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--v2-teal-soft);
  color: var(--v2-teal-deep);
  font-weight: 700;
  flex: none;
}

.v2-fold[open] summary::before { content: "–"; }

.v2-fold .v2-fold-body {
  padding: 0 1.1rem 1.1rem;
  color: var(--v2-ink);
}

.v2-fold .v2-fold-body .en {
  display: block;
  margin-top: 0.4rem;
  color: var(--v2-muted);
  font-size: 0.9rem;
}

.v2-reassess {
  margin-top: 1rem;
  background: var(--v2-teal-soft);
  border: 1px solid var(--v2-teal);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
}

.v2-reassess strong { color: var(--v2-teal-deep); }
.v2-reassess .en { display: block; margin-top: 0.3rem; color: var(--v2-muted); font-size: 0.9rem; }

/* 无真实操作图：准确 HTML 任务流程（文字流程） */
.v2-taskflow {
  margin: 0;
  padding: 1.1rem 1.1rem 1.1rem 0.6rem;
  list-style: none;
  counter-reset: v2step;
  display: grid;
  gap: 0.7rem;
}

.v2-taskflow li {
  counter-increment: v2step;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.7rem;
  align-items: start;
  background: var(--v2-paper);
  border: 1px dashed var(--v2-teal);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
}

.v2-taskflow li::before {
  content: counter(v2step);
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--v2-teal);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}

.v2-taskflow .zh { font-weight: 600; }
.v2-taskflow .en { display: block; margin-top: 0.2rem; font-size: 0.86rem; color: var(--v2-muted); }

.v2-taskflow-note {
  margin: 0.9rem 1.1rem 1.1rem;
  font-size: 0.85rem;
  color: var(--v2-muted);
  border-top: 1px solid var(--v2-line);
  padding-top: 0.8rem;
}

/* 官方视频卡 */
.v2-videocard {
  padding: 1.4rem 1.2rem;
  text-align: left;
}

.v2-videocard .v2-play {
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--v2-teal);
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
}

.v2-videocard strong { display: block; margin-bottom: 0.4rem; }
.v2-videocard p { margin: 0 0 0.9rem; color: var(--v2-ink); }
.v2-videocard .en { display: block; margin-top: 0.3rem; color: var(--v2-muted); font-size: 0.88rem; }

.v2-button {
  display: inline-block;
  background: var(--v2-teal);
  color: #fff;
  border-radius: 999px;
  padding: 0.6rem 1.3rem;
  text-decoration: none;
  font-weight: 600;
}

.v2-button:hover { background: var(--v2-teal-deep); color: #fff; }

.v2-videocard small { display: block; margin-top: 0.7rem; color: var(--v2-muted); font-size: 0.82rem; }

/* ---------- 病例：后半段逐轮卡片 ---------- */
.v2-rounds {
  display: grid;
  gap: var(--v2-gap);
  margin: var(--v2-gap) 0;
}

.v2-round {
  background: var(--v2-panel);
  border: 1px solid var(--v2-line);
  border-radius: var(--v2-radius);
  box-shadow: var(--v2-shadow);
  padding: clamp(1.25rem, 3vw, 2.25rem);
}

.v2-round > header {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.9rem;
  border-bottom: 2px solid var(--v2-gold-soft);
}

.v2-round-num {
  flex: none;
  background: var(--v2-teal);
  color: #fff;
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.v2-round h3 { margin: 0; font-size: 1.15rem; }
.v2-round h3 .en { display: block; font-size: 0.9rem; font-weight: 400; color: var(--v2-muted); margin-top: 0.2rem; }

.v2-q {
  background: var(--v2-gold-soft);
  border-left: 4px solid var(--v2-gold);
  border-radius: 0 10px 10px 0;
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.1rem;
}

.v2-q > strong { color: var(--v2-gold); display: block; margin-bottom: 0.35rem; font-size: 0.9rem; }
.v2-q p { margin: 0; font-size: 1.05rem; font-weight: 600; }
.v2-q .en { display: block; margin-top: 0.3rem; font-weight: 400; font-size: 0.9rem; color: var(--v2-muted); }

.v2-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 1.1rem;
}

@media (max-width: 700px) {
  .v2-compare { grid-template-columns: 1fr; }
}

.v2-before, .v2-after {
  border: 1px solid var(--v2-line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  background: var(--v2-paper);
}

.v2-after { border-color: var(--v2-teal); background: var(--v2-teal-soft); }

.v2-before > span, .v2-after > span {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
  color: var(--v2-muted);
}

.v2-after > span { color: var(--v2-teal-deep); }

.v2-before p, .v2-after p { margin: 0; }
.v2-before .en, .v2-after .en { display: block; margin-top: 0.3rem; font-size: 0.88rem; color: var(--v2-muted); }

.v2-judge {
  border: 1px dashed var(--v2-teal);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  margin-bottom: 1rem;
}

.v2-judge > strong { color: var(--v2-teal-deep); display: block; margin-bottom: 0.35rem; }
.v2-judge p { margin: 0; }
.v2-judge .en { display: block; margin-top: 0.3rem; font-size: 0.9rem; color: var(--v2-muted); }

/* 长教师解说折叠 */
.v2-teacher {
  border: 1px solid var(--v2-line);
  border-radius: 10px;
  background: var(--v2-paper);
}

.v2-teacher summary {
  cursor: pointer;
  padding: 0.75rem 1rem;
  font-weight: 600;
  color: var(--v2-teal-deep);
  list-style: none;
}

.v2-teacher summary::-webkit-details-marker { display: none; }

.v2-teacher summary::before {
  content: "▸ ";
  color: var(--v2-gold);
}

.v2-teacher[open] summary::before { content: "▾ "; }

.v2-teacher .v2-teacher-body { padding: 0 1.1rem 1.1rem; }
.v2-teacher .v2-teacher-body .en { display: block; margin-top: 0.35rem; color: var(--v2-muted); font-size: 0.9rem; }

/* 外部图与原病例严格分开：金色分隔线 */
.v2-source-separator {
  border: 0;
  border-top: 3px double var(--v2-gold);
  margin: calc(var(--v2-gap) * 1.25) 0;
  position: relative;
}

.v2-source-separator-label {
  display: inline-block;
  background: var(--v2-gold-soft);
  border: 1px solid var(--v2-gold);
  color: var(--v2-gold);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  margin: -1.4rem 0 1.5rem;
  position: relative;
  top: -0.4rem;
}

/* 教学假设标注 */
.v2-assumption {
  font-size: 0.88rem;
  color: var(--v2-muted);
  border-top: 1px solid var(--v2-line);
  padding-top: 1rem;
  margin-top: 0.5rem;
}

/* 节点面板眉题与场景行 */
.v2-node-kicker {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--v2-teal);
}

.v2-panel-copy h3 { margin: 0 0 0.6rem; font-size: 1.25rem; }
.v2-panel-copy h3 .en { display: block; font-size: 0.92rem; font-weight: 400; color: var(--v2-muted); margin-top: 0.2rem; }

.v2-scene {
  margin: 0 0 1.1rem;
  color: var(--v2-ink);
  line-height: 1.65;
}

.v2-scene .en { display: block; margin-top: 0.3rem; color: var(--v2-muted); font-size: 0.92rem; }

.v2-reassess p { margin: 0.4rem 0 0; }
/* Preserve reversible site language toggle; Muse's block rules must not expose both languages. */
body[data-lang="zh"] .en {display:none!important;}
body[data-lang="en"] .zh {display:none!important;}
.v2-visual img {object-fit:contain;max-height:420px;}
.v2-round {margin-bottom:32px;}
.v2-panel-copy .v2-points li {font-size:17px;line-height:1.6;}
.v2-panel-copy .v2-points li:last-child {background:#f7ecd4;}