:root {
  --bg: #fff9e9;
  --surface: #ffffff;
  --surface-alt: #f5efe0;
  --ink: #233d43;
  --ink-muted: #587075;
  --primary: #2b8078;
  --primary-dark: #1e5e58;
  --accent: #ffdfa0;
  --mint: #c3eadb;
  --danger: #b83b3b;
  --danger-bg: #fdeaea;
  --warn: #9a5b13;
  --warn-bg: #fff3d6;
  --ok: #1f6e43;
  --ok-bg: #e3f7ec;
  --border: #233d43;
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
  min-height: 100dvh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 249, 233, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--border);
  padding: 12px 20px;
}

.topbar-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--border);
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 20px;
  box-shadow: 3px 3px 0 var(--mint);
}

.brand-title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0;
}

.brand-sub {
  font-size: 12px;
  color: var(--ink-muted);
  margin: 0;
}

.nav-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab-btn {
  appearance: none;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  border-radius: 12px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease;
}

.tab-btn:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.tab-btn.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 3px 3px 0 var(--border);
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.hero-banner {
  background: var(--surface);
  border: 3px solid var(--border);
  border-radius: 26px;
  padding: 24px 28px;
  box-shadow: 6px 6px 0 var(--mint);
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
}

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

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.kpi-card {
  background: var(--surface-alt);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 12px 16px;
}

.kpi-num {
  font-size: 24px;
  font-weight: 900;
  color: var(--primary-dark);
}

.kpi-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-muted);
}

.toolbar {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.input, .select {
  min-width: 0;
  max-width: 100%;
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 9px 12px;
  font: inherit;
  font-size: 14px;
  background: #fff;
  color: var(--ink);
}

.input {
  flex: 1 1 220px;
}

.btn {
  appearance: none;
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 9px 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 750;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

.btn:hover {
  background: var(--accent);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
}

.layout-split {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

@media (max-width: 960px) {
  .layout-split {
    grid-template-columns: minmax(0, 1fr);
  }
}

.sidebar {
  background: var(--surface);
  border: 3px solid var(--border);
  border-radius: 22px;
  padding: 16px;
  box-shadow: 5px 5px 0 var(--mint);
  max-height: 82dvh;
  overflow-y: auto;
  position: sticky;
  top: 84px;
}

@media (max-width: 960px) {
  .sidebar {
    position: static;
    max-height: none;
  }
}

.area-group {
  margin-bottom: 16px;
}

.area-heading {
  font-size: 13px;
  font-weight: 900;
  color: var(--primary-dark);
  background: var(--accent);
  padding: 6px 10px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  margin-bottom: 8px;
}

.topic-item {
  width: 100%;
  text-align: left;
  border: 1.5px solid transparent;
  background: transparent;
  padding: 9px 10px;
  border-radius: 10px;
  cursor: pointer;
  display: block;
  font: inherit;
  font-size: 13.5px;
  color: var(--ink);
  margin-bottom: 5px;
}

.topic-title {
  display: block;
  line-height: 1.55;
}

.topic-count {
  display: block;
  text-align: right;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--ink-muted);
  margin-top: 2px;
}

.topic-item:hover {
  background: var(--surface-alt);
}

.topic-item.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--border);
  font-weight: 750;
}

.topic-item.active .topic-count {
  color: #d9f6ee;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  border: 1.5px solid var(--border);
  background: var(--accent);
  color: var(--ink);
}

.badge-book {
  background: var(--ok-bg);
  color: var(--ok);
  border-color: var(--ok);
}

.badge-ai {
  background: var(--warn-bg);
  color: var(--warn);
  border-color: var(--warn);
}

.badge-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger);
}

.card {
  background: var(--surface);
  border: 3px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 6px 6px 0 var(--mint);
  margin-bottom: 20px;
}

.card h2, .card h3 {
  margin-top: 0;
}

.section-block {
  background: var(--surface-alt);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
  margin-top: 16px;
}

.section-block h4 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--primary-dark);
}

.exam-alert {
  background: var(--warn-bg);
  border: 3px solid var(--warn);
  border-left: 14px solid var(--warn);
  box-shadow: 4px 4px 0 var(--accent);
}

.exam-alert-title {
  color: var(--warn);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.5px;
}

.exam-alert-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
}

.exam-alert-list li {
  background: var(--surface);
  border: 2px solid var(--warn);
  border-left: 8px solid var(--warn);
  border-radius: 12px;
  padding: 10px 14px;
  margin: 8px 0;
  line-height: 1.7;
}

.keypoint {
  background: #fef08a;
  color: #713f12;
  font-weight: 850;
  padding: 1px 4px;
  border-radius: 3px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.exam-refs {
  margin-top: 6px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.exam-refs-label {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--primary-dark);
}

.exam-ref-chip {
  font: inherit;
  font-size: 11px;
  font-weight: 750;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1.5px solid var(--primary);
  background: var(--mint);
  color: var(--primary-dark);
  cursor: pointer;
}

.exam-ref-chip:hover {
  background: var(--primary);
  color: #fff;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: 14px;
}

.book-fig {
  margin: 0;
}

.book-fig figcaption {
  font-size: 12.5px;
  font-weight: 750;
  color: var(--ink-muted);
  margin-top: 6px;
  line-height: 1.5;
}

.pre-snippet.light {
  background: #fffdf4;
  color: var(--ink);
  font-size: 12.5px;
  border: 2px solid var(--border);
}

.table-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 46fr) minmax(0, 54fr);
  gap: 14px;
  align-items: start;
  margin-top: 10px;
}

@media (max-width: 880px) {
  .table-detail-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.transcript {
  background: #fffdf4;
  border: 2px solid var(--border);
  border-left: 8px solid var(--primary);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.95;
  white-space: pre-wrap;
  overflow-x: auto;
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--mint);
}

.transcript strong {
  color: var(--primary-dark);
  font-weight: 900;
  display: inline-block;
  margin-top: 4px;
}

.book-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  margin-top: 8px;
  background: var(--surface);
}

.book-table th {
  background: var(--primary);
  color: #fff;
  padding: 8px 10px;
  border: 1.5px solid var(--border);
  font-weight: 800;
  text-align: left;
}

.book-table td {
  padding: 7px 10px;
  border: 1.5px solid var(--border);
  line-height: 1.6;
  vertical-align: top;
}

.book-table tr:nth-child(even) td {
  background: var(--surface-alt);
}

.struct-table-wrap {
  margin-top: 10px;
}

.struct-caption {
  margin: 10px 0 6px;
  font-weight: 900;
  font-size: 14.5px;
  color: var(--primary-dark);
}

.struct-scroll {
  overflow-x: auto;
  border-radius: 10px;
}

.struct-note {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.7;
}

.bullet-list {
  margin: 0;
  padding-left: 20px;
}

.bullet-list li {
  margin-bottom: 8px;
}

.option-list {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}

.option-btn {
  width: 100%;
  text-align: left;
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: background 0.12s ease;
}

.option-btn:hover {
  background: var(--surface-alt);
}

.option-btn.correct {
  background: var(--ok-bg);
  border-color: var(--ok);
  font-weight: 750;
}

.option-btn.wrong {
  background: var(--danger-bg);
  border-color: var(--danger);
}

.opt-key {
  min-width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  display: grid;
  place-items: center;
  font-weight: 800;
  background: var(--accent);
  flex-shrink: 0;
}

.explanation-box {
  background: #f9fbf9;
  border: 2px solid var(--primary);
  border-radius: 18px;
  padding: 18px 20px;
  margin-top: 16px;
}

.wrong-opts-grid {
  display: grid;
  gap: 8px;
  margin: 12px 0;
}

.wrong-opt-item {
  background: var(--surface);
  border-left: 4px solid var(--danger);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
}

.ref-list {
  font-size: 13px;
  color: var(--ink-muted);
  background: var(--surface-alt);
  padding: 10px 14px;
  border-radius: 10px;
  margin-top: 10px;
}

.concern-banner {
  background: var(--warn-bg);
  border: 2px solid var(--warn);
  color: var(--warn);
  padding: 10px 14px;
  border-radius: 12px;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 700;
}

.glossary-term {
  border-bottom: 2px dashed #0284c7;
  color: #0369a1;
  font-weight: 750;
  padding: 0 1px;
  cursor: help;
  background: transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.glossary-term:hover {
  color: #0284c7;
  border-bottom-style: solid;
  background: #f0f9ff;
  border-radius: 2px;
}

.popover {
  position: fixed;
  z-index: 100;
  max-width: 340px;
  background: var(--ink);
  color: #fff;
  border: 2px solid var(--accent);
  border-radius: 14px;
  padding: 12px 16px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
  font-size: 13.5px;
}

.popover h5 {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 15px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th, .data-table td {
  border: 1.5px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: var(--accent);
  font-weight: 800;
}

.pre-snippet {
  background: #1e292b;
  color: #e8f2f0;
  padding: 14px;
  border-radius: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
  overflow-x: auto;
  white-space: pre-wrap;
  max-height: 300px;
  overflow-y: auto;
}

.table-page-img {
  display: block;
  width: 100%;
  max-width: 760px;
  border: 2px solid var(--border);
  border-radius: 12px;
  margin-top: 10px;
  background: #fff;
}

/* REQ1 — study content and explanations must never show textbook images.
   Only the locked figure gallery may render book scans (fig-h-*, bqh-*, tbl-*,
   a-*-correction). Recreated tables are HTML <table>, not images. */
.no-book-media img,
.study-surface img,
.explanation-box img {
  display: none !important;
}

.book-media-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 2px 4px 2px 0;
  padding: 4px 10px;
  font-size: 12.5px;
  line-height: 1.35;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-dark);
  cursor: pointer;
  text-decoration: none;
}

.book-media-link:hover {
  background: var(--mint);
}

.table-page-img + .table-page-img {
  margin-top: 8px;
}

.figs-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(35, 61, 67, 0.45);
  display: grid;
  place-items: center;
  padding: 20px;
}

.figs-overlay[hidden] {
  display: none !important;
}

.figs-modal {
  background: var(--surface);
  border: 3px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  width: min(420px, 100%);
  box-shadow: 8px 8px 0 var(--mint);
}

.figs-modal h3 {
  margin: 0 0 8px;
}

.figs-modal p {
  color: var(--ink-muted);
  margin: 0 0 12px;
}

.figs-modal label {
  display: block;
  font-weight: 750;
  margin: 12px 0 8px;
}

.figs-modal input {
  width: 100%;
  border: 2px solid var(--border);
  border-radius: 13px;
  padding: 12px;
  font: inherit;
}

.figs-error {
  color: var(--danger);
  font-size: 13.5px;
  margin: 10px 0 0;
}

.figs-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.figs-actions .btn {
  flex: 1;
}

.figs-modal select, .figs-modal textarea { width: 100%; box-sizing: border-box; border: 2px solid var(--ink, #233d43); border-radius: 12px; padding: 10px; font: inherit; }

/* Keep glossary navigation reachable on small screens and for long definitions. */
.popover { box-sizing: border-box; width: 340px; max-width: calc(100vw - 24px); max-height: calc(100vh - 24px); overflow-y: auto; overflow-wrap: anywhere; overscroll-behavior: contain; }
.glossary-question-links { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; min-width: 120px; max-width: 340px; }
/* Study tools: all assets are served locally under the member session. */
.tool-row {display:flex;flex-wrap:wrap;gap:10px;margin:16px 0;align-items:center}
.tool-row select,.tool-row input {max-width:100%;min-width:0;padding:10px;border:1px solid #a6bfb6;border-radius:8px;background:white;color:#193c36;font:inherit}
.chapter-link {border:0;background:transparent;text-align:left;width:100%;cursor:pointer;font:inherit;font-weight:700}
.mindmap-scroll {overflow:auto;border:1px solid #cfdfd7;border-radius:12px;max-height:68vh;margin:16px 0;background:#f6faf7}
.mindmap {display:block;max-width:none}
.mindmap path {fill:none;stroke:#abc8bc;stroke-width:2}
.mindmap rect {fill:#e0f1e8;stroke:#74a996}
.mindmap text {font:14px sans-serif;fill:#193c36;cursor:pointer}
.mindmap [role=button]:focus {outline:2px solid #187b69}
.flashcard {width:100%;min-height:220px;display:block;border:2px solid #82b6a3;border-radius:18px;background:#f4faf6;color:#193c36;padding:32px;font:600 22px/1.8 sans-serif;text-align:left;white-space:pre-wrap;overflow-wrap:anywhere;cursor:pointer}
.option-btn.selected {outline:3px solid #5582ba;background:#edf4ff}
.study-graph-layout {display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:18px}
#study-graph {display:block;width:100%;height:520px;background:#f7faf8;border:1px solid #bfd6cb;border-radius:12px;touch-action:none;cursor:grab}
#graph-panel {max-height:520px;overflow:auto;overflow-wrap:anywhere}
#graph-panel .btn {display:block;margin:6px 0;max-width:100%;text-align:left}
.mini-graph {display:block;width:100%;height:210px;touch-action:none;background:#f7faf8;border:1px solid #bfd6cb;border-radius:8px}
@media(max-width:700px) {.topbar{position:static}.study-graph-layout{grid-template-columns:minmax(0,1fr)}#study-graph{height:390px}#graph-panel{max-height:none}.tool-row>*{max-width:100%}.flashcard{padding:20px;font-size:19px}.container{min-width:0}.card{min-width:0}.data-table{display:block;overflow:auto;max-width:100%}}
@media(prefers-reduced-motion:reduce) {.mindmap,.flashcard,#study-graph{animation:none;transition:none}}

.mindmap .mindmap-primary {font-weight:600}
.mindmap .mindmap-secondary {font-size:12px;font-weight:400}

.learning-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.learning-topic{border:1px solid var(--border,#ddd);border-radius:12px;padding:16px;min-width:0;overflow-wrap:anywhere}.learning-topic h4{margin:0}.topic-terms{display:flex;flex-wrap:wrap;gap:6px}.topic-terms .exam-ref-chip{white-space:normal;overflow-wrap:anywhere;max-width:100%}.topic-terms details{width:100%}.topic-terms summary{cursor:pointer}.learning-topic .tool-row{flex-wrap:wrap}@media(max-width:600px){.learning-grid{grid-template-columns:minmax(0,1fr)}}

.exam-flashcard {cursor:default;font-size:17px;font-weight:400;white-space:normal}
.exam-flashcard p {white-space:pre-wrap;overflow-wrap:anywhere}
.card-options {display:grid;gap:10px}
.card-options .btn {text-align:left;white-space:normal;overflow-wrap:anywhere}
.card-options [aria-pressed="true"] {outline:3px solid #26775a;background:#dcefe4}
.layout-split > main {min-width:0}
.area-heading.chapter-link.active {background:var(--primary);color:#fff}

/* ===== 三區抽出頁（核心機轉／物種差異／國考重點）＋自繪互動機轉圖 ===== */
.zone-wrap { --zs: 1; }
.zone-head {
  display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: flex-end;
  background: var(--surface); border: 3px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; margin: 0 0 16px;
}
.zone-title { margin: 0 0 4px; font-size: calc(23px * var(--zs)); }
.zone-sub { margin: 0; color: var(--primary-dark); font-weight: 700; font-size: calc(14px * var(--zs)); }
.zone-intro { margin: 8px 0 0; font-size: calc(13.5px * var(--zs)); color: var(--ink-muted); max-width: 62ch; }
.zone-tools { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.zone-select-label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--ink-muted); font-weight: 700; }
.zone-select {
  font: inherit; font-size: 14px; padding: 8px 10px; border: 2px solid var(--border);
  border-radius: 10px; background: var(--surface); color: var(--ink); min-width: 210px; max-width: 46vw;
}
.zone-zoom { display: flex; align-items: center; gap: 4px; }
.zone-zoom-btn { padding: 6px 10px; font-size: 13px; }
.zone-zoom-value { min-width: 48px; text-align: center; font-size: 13px; font-weight: 700; color: var(--primary-dark); }
.zone-body { display: grid; grid-template-columns: minmax(180px, 230px) minmax(0, 1fr); gap: 16px; align-items: start; }
.zone-bookmarks {
  position: sticky; top: 84px; max-height: calc(100dvh - 110px); overflow-y: auto;
  background: var(--surface); border: 3px solid var(--border); border-radius: var(--radius);
  padding: 10px; display: flex; flex-direction: column; gap: 4px;
}
.zone-bm-head { font-size: 12px; font-weight: 800; letter-spacing: .08em; color: var(--ink-muted); padding: 2px 6px 6px; }
.zone-bm {
  display: flex; gap: 8px; align-items: baseline; text-decoration: none; color: var(--ink);
  padding: 6px 8px; border-radius: 10px; border: 2px solid transparent;
  font-size: calc(13.5px * var(--zs)); line-height: 1.35;
}
.zone-bm:hover { background: var(--surface-alt); }
.zone-bm.active { background: var(--mint); border-color: var(--primary-dark); font-weight: 800; }
.zone-bm-no {
  flex: none; min-width: 22px; height: 22px; border-radius: 999px; background: var(--primary);
  color: #fff; font-size: 12px; font-weight: 800; display: inline-flex; align-items: center; justify-content: center;
}
.zone-bm-t { flex: 1 1 auto; }
.zone-main { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.zone-chapter {
  background: var(--surface); border: 3px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; scroll-margin-top: 90px;
}
.zone-chapter-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; border-bottom: 2px dashed var(--mint); padding-bottom: 8px; margin-bottom: 12px; }
.zone-chapter-head h3 { margin: 0; font-size: calc(19px * var(--zs)); }
.zone-count { font-size: calc(12px * var(--zs)); color: var(--ink-muted); }
.zone-lesson + .zone-lesson { margin-top: 14px; border-top: 1px solid var(--surface-alt); padding-top: 12px; }
.zone-lesson h4 { margin: 0; font-size: calc(16px * var(--zs)); color: var(--primary-dark); }
.zone-lesson-en { margin: 2px 0 8px; font-size: calc(12.5px * var(--zs)); color: var(--ink-muted); }
.zone-field h5 { margin: 10px 0 4px; font-size: calc(13.5px * var(--zs)); color: var(--warn); }
.zone-field .bullet-list li { font-size: calc(14.5px * var(--zs)); }
.zone-note {
  margin-top: 14px; background: var(--warn-bg); border: 2px solid var(--accent); border-radius: 14px; padding: 10px 12px;
}
.zone-note-head { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center; font-size: calc(13px * var(--zs)); }
.zone-note-status { font-size: 12px; color: var(--ink-muted); }
.zone-note-status.is-saving { color: var(--warn); }
.zone-note-status.is-ok { color: var(--ok); }
.zone-note-status.is-error { color: var(--danger); }
.zone-note-input {
  width: 100%; margin-top: 8px; padding: 10px; border: 2px solid var(--border); border-radius: 10px;
  background: #fffdf5; color: var(--ink); font: inherit; font-size: calc(14px * var(--zs)); line-height: 1.6; resize: vertical;
}
.zone-note-input:focus { outline: 3px solid var(--mint); outline-offset: 1px; }

/* 自繪互動機轉圖 */
.mech-slot:empty { display: none; }
.mech-fig { margin: 0 0 14px; border: 2px solid var(--primary-dark); border-radius: 14px; background: #fbfffd; padding: 10px 12px; }
.mech-fig-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; font-size: calc(13.5px * var(--zs)); }
.mech-tag { font-size: 11.5px; font-weight: 700; color: var(--primary-dark); background: var(--mint); border-radius: 999px; padding: 2px 8px; }
.mech-actions { display: flex; gap: 6px; }
.mech-btn { padding: 5px 10px; font-size: 12.5px; }
.mech-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 30%); gap: 12px; align-items: start; margin-top: 8px; }
.mech-canvas { min-width: 0; background: #fff; border: 1px solid var(--mint); border-radius: 12px; padding: 6px; }
.mech-canvas svg { display: block; width: 100%; height: auto; max-height: 460px; }
.mech-panel { background: var(--surface-alt); border: 2px solid var(--mint); border-radius: 12px; padding: 10px 12px; min-height: 90px; }
.mech-panel-title { font-weight: 800; font-size: calc(13.5px * var(--zs)); color: var(--primary-dark); margin-bottom: 4px; }
.mech-panel-body { font-size: calc(13px * var(--zs)); line-height: 1.6; }
.mech-caption { margin: 8px 0 0; font-size: 12px; color: var(--ink-muted); }

/* SVG 內部一致的樣式（各章自繪圖共用，避免每張圖各寫一套色） */
.m-box { fill: #ffffff; stroke: #9fc7b8; stroke-width: 2; }
.m-node { cursor: pointer; outline: none; }
.m-node .m-box, .mnode .m-box { transition: fill .18s ease, stroke .18s ease; }
.mnode:hover .m-box, .mnode:focus-visible .m-box { fill: #e3f7ec; stroke: #2f7d5d; }
.mnode.is-active .m-box { fill: #2f7d5d; stroke: #1e5e58; }
.mnode.is-active .m-label { fill: #ffffff; }
.m-label { fill: #233d43; font-size: 13px; font-family: inherit; }
.m-label-sm { fill: #587075; font-size: 11.5px; font-family: inherit; }
.m-title { fill: #1e5e58; font-size: 15px; font-weight: 800; font-family: inherit; }
.m-arrow { fill: none; stroke: #2f7d5d; stroke-width: 2.6; stroke-dasharray: 9 7; animation: mech-dash 1.2s linear infinite; }
.m-arrow.inh { stroke: #c0392b; stroke-dasharray: 2 6; }
.m-arrow.slow { animation-duration: 2.2s; }
.m-divider { stroke: #c3eadb; stroke-width: 2; }
@keyframes mech-dash { to { stroke-dashoffset: -32; } }
@media (prefers-reduced-motion: reduce) { .m-arrow { animation: none; } }
@media (max-width: 900px) {
  .zone-body { grid-template-columns: 1fr; }
  .zone-bookmarks { position: static; max-height: none; flex-direction: row; overflow-x: auto; }
  .zone-bm-head { display: none; }
  .zone-bm { flex: 0 0 auto; }
  .mech-body { grid-template-columns: 1fr; }
}

/* Let the content shrink to a phone width; wide diagrams/tables scroll locally. */
.layout-split > *, .hero-banner > *, .topbar-inner > *,
.figure-grid > *, .table-detail-grid > *, .zone-body > * { min-width: 0; }
.card, .section-block, .hero-banner, .sidebar, .zone-wrap, .zone-chapter,
.mech-fig, .mech-panel, .option-btn, .ref-list { overflow-wrap: anywhere; }
.option-btn > :last-child { min-width: 0; }
.book-media-link, .exam-ref-chip, .badge { max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
.struct-scroll, .mindmap-scroll { max-width: 100%; }
.brand, .brand > * { min-width: 0; }
.account-box { max-width: 100%; overflow-wrap: anywhere; }
.brand-icon { flex: none; }
.mech-actions { flex-wrap: wrap; }
.zone-tools, .zone-select-label { min-width: 0; max-width: 100%; }

@media (max-width: 700px) {
  .topbar { padding: 10px 12px; }
  .topbar-inner { gap: 10px; }
  .brand { gap: 8px; }
  .brand-title { font-size: 18px; }
  .brand-sub { font-size: 11px; }
  .nav-tabs { width: 100%; flex-wrap: nowrap; overflow-x: auto; gap: 6px; padding: 2px 2px 6px; }
  .tab-btn { flex: 0 0 auto; padding: 8px 10px; font-size: 13px; }
  .container { padding: 16px 12px 48px; }
  .card, .hero-banner { padding: 16px; border-radius: 18px; box-shadow: 3px 3px 0 var(--mint); }
  .section-block { padding: 12px; }
  .layout-split { gap: 16px; }
  .sidebar { padding: 12px; }
  .toolbar { padding: 12px; }
  .toolbar .input, .toolbar .select { flex: 1 1 100%; width: 100%; font-size: 16px; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .kpi-card { padding: 10px; }
  .explanation-box { padding: 12px; }
  .option-btn { padding: 10px; gap: 8px; }
  .exam-alert { border-left-width: 7px; }
  .exam-alert-list li { padding: 10px; }
  .zone-head, .zone-chapter { padding: 12px; }
  .zone-select { min-width: 0; max-width: 100%; width: 100%; }
  .zone-tools { width: 100%; }
  .zone-select-label { flex: 1 1 100%; }
  .zone-bookmarks { max-width: 100%; }
  .mech-fig { padding: 10px; }
  .mech-panel { min-width: 0; padding: 10px; }
  .figs-overlay { padding: 12px; }
  .figs-modal { padding: 18px; max-height: calc(100dvh - 24px); overflow-y: auto; }
  .figs-actions { flex-wrap: wrap; }
}

/* Inline terminology remains keyboard/touch accessible within prose. */
.term-inline {display:inline;border:0;border-bottom:2px dotted var(--primary);border-radius:0;background:transparent;padding:0;color:var(--primary-dark);font:inherit;font-weight:750;text-align:inherit;cursor:pointer;overflow-wrap:anywhere;white-space:normal}
.term-inline:focus-visible {outline:3px solid var(--primary);outline-offset:2px}
.mechanism-cue {background:#fff3d6;border-left:6px solid #9a5b13;border-radius:8px;padding:10px 12px;font-weight:800;line-height:1.7}
.mechanism-list {list-style:none;padding:0;counter-reset:mechanism}
.mechanism-list>li {counter-increment:mechanism;border-left:5px solid var(--primary);background:var(--surface);border-radius:10px;padding:12px 14px;margin:12px 0;overflow-wrap:anywhere}
.mechanism-list>li::before {content:'機轉 ' counter(mechanism);display:block;font-size:12px;font-weight:900;color:var(--primary-dark);margin-bottom:6px}
@media (max-width:700px) {
  /* A five-column dictionary becomes readable entries rather than one-letter columns. */
  .glossary-table { display:block; width:100%; overflow:visible; }
  .glossary-table thead { display:none; }
  .glossary-table tbody { display:grid; gap:14px; }
  .glossary-table tr { display:grid; grid-template-columns:minmax(0,1fr); border:2px solid var(--border); border-radius:12px; padding:12px; background:var(--surface); }
  .glossary-table td { display:block; border:0; padding:6px 0; min-width:0; font-size:15px; }
  .glossary-table td::before { content:attr(data-label); display:block; color:var(--ink-muted); font-size:12px; font-weight:800; margin-bottom:3px; }
  .sidebar { max-height:260px; overflow-y:auto; overscroll-behavior:contain; }
}

/* Backdrop filters create a containing block and trap the fixed source sheet. */
@media (max-width:700px) { .topbar { backdrop-filter:none; } }

.daily-drug-close {display:block;margin:0 0 10px auto;border:2px solid var(--border);border-radius:10px;padding:10px 12px;min-height:44px;background:var(--surface);color:var(--ink);font:inherit;font-weight:800;cursor:pointer}

/* Mechanism hints annotate existing words; the sentence itself stays unchanged. */
.mechanism-legend {display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.mechanism-legend>span {padding:2px 8px;border-radius:5px;font-size:13px;border:1px solid currentColor}
.mh-lead {
  font-weight: 850;
  color: #0f5147;
  background: #e6f4f1;
  padding: 1px 7px;
  border-radius: 4px;
  border-left: 3px solid #0d9488;
  display: inline-block;
  margin-bottom: 2px;
}
.mh-target {color:#0e464e;background:#d8f2ef;border-radius:3px;font-weight:850;padding:1px 3px}
.mh-direction {color:#5a3c00;background:#fde047;border-radius:3px;font-weight:850;padding:1px 3px}
.mh-warning {color:#991b1b;background:#fee2e2;border-bottom:2px solid #ef4444;border-radius:3px;font-weight:850;padding:1px 4px}
.glossary-study-links {display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.term-evidence-note {display:block;color:var(--ink-muted);font-size:12px;line-height:1.6;margin-top:6px}
.popover a {color:var(--accent)}
.mechanism-reference-note {background:#fff4df;border:2px solid #a76b1d;border-left:7px solid #a76b1d;border-radius:12px;padding:12px 14px;margin:10px 0;line-height:1.75;overflow-wrap:anywhere}
.term-sources {font-size:12px;line-height:1.65;margin:6px 0;overflow-wrap:anywhere}
.term-sources summary {cursor:pointer;font-weight:800;color:var(--primary-dark)}
.term-sources ul {padding-left:18px}
.popover .term-sources summary,.popover .term-evidence-note {color:var(--mint)}

/* ==========================================================================
   國考速記口訣區 (Mnemonics) & 重製對照表 (Embedded Study Tables)
   ========================================================================== */

/* 1. 口訣區塊容器 */
.mnemonic-section {
  margin: 20px 0;
  padding: 18px 20px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(16, 185, 129, 0.06) 100%);
  border: 2px solid rgba(245, 158, 11, 0.35);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.mnemonic-section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1.5px dashed rgba(245, 158, 11, 0.4);
}

.mnemonic-section-title {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
  color: #92400e;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mnemonic-section-sub {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-muted);
}

/* 2. 口訣卡片列表 */
.mnemonic-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mnemonic-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.mnemonic-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.mnemonic-badge {
  background: #f59e0b;
  color: #fff;
  font-size: 12px;
  font-weight: 850;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

.mnemonic-title {
  font-size: 16px;
  font-weight: 850;
  color: var(--ink);
  flex: 1 1 auto;
}

.mnemonic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.mnemonic-tag {
  font-size: 11px;
  font-weight: 750;
  color: #047857;
  background: #d1fae5;
  padding: 2px 7px;
  border-radius: 6px;
}

/* 3. 口訣字句醒目展示框 */
.mnemonic-phrase-box {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border-left: 5px solid #d97706;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
}

.mnemonic-phrase {
  font-size: 18px;
  font-weight: 900;
  color: #78350f;
  line-height: 1.5;
  letter-spacing: 0.3px;
}

/* 4. 口訣逐項解析 */
.mnemonic-breakdown {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.mnemonic-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.02);
  border-radius: 8px;
}

.mnemonic-key {
  font-weight: 900;
  color: #1e3a8a;
  background: #dbeafe;
  padding: 2px 7px;
  border-radius: 5px;
  white-space: nowrap;
  flex-shrink: 0;
}

.mnemonic-arrow {
  color: #f59e0b;
  font-weight: 900;
  flex-shrink: 0;
}

.mnemonic-val {
  color: var(--ink);
  flex: 1 1 auto;
}

/* 5. 命中解題提示 */
.mnemonic-tip {
  background: #ecfdf5;
  border-left: 4px solid #10b981;
  border-radius: 6px;
  padding: 9px 12px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #065f46;
}

.mnemonic-tip strong {
  color: #047857;
}

/* 6. 重點整理區結構化嵌入表 */
.embedded-tables-container {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1.5px solid var(--border);
}

.embedded-table-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.embedded-table-count {
  font-size: 13px;
  font-weight: 750;
  color: var(--ink-muted);
}

.embedded-table-toggle {
  display: block;
  width: 100%;
  margin-top: 14px;
  padding: 10px 16px;
  min-height: 44px;
  font-size: 14px;
  font-weight: 800;
  color: #065f46;
  background: #ecfdf5;
  border: 1.5px dashed #10b981;
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease-in-out;
}

.embedded-table-toggle:hover {
  background: #d1fae5;
  border-color: #059669;
}

/* 7. 手機端響應式調整 (Mobile & Tablet) */
@media (max-width: 640px) {
  .mnemonic-section {
    padding: 14px 12px;
    margin: 16px 0;
  }

  .mnemonic-section-title {
    font-size: 16.5px;
  }

  .mnemonic-card {
    padding: 12px;
  }

  .mnemonic-phrase {
    font-size: 16px;
    line-height: 1.5;
  }

  .mnemonic-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 8px 10px;
  }

  .mnemonic-arrow {
    display: none;
  }

  .mnemonic-key {
    font-size: 13px;
    margin-bottom: 2px;
  }

  .mnemonic-val {
    font-size: 13.5px;
    line-height: 1.6;
  }

  .struct-scroll {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border);
    border-radius: 8px;
  }

  .book-table {
    font-size: 12.5px;
  }

  .book-table th, .book-table td {
    padding: 6px 8px;
    white-space: normal;
  }
}

/* ==========================================================================
   生動現代化心智圖 (Interactive & Zoomable Mindmap)
   ========================================================================== */

.mindmap-box {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  margin: 18px 0;
  overflow: hidden;
}

.mindmap-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-alt) 100%);
  border-bottom: 1px solid var(--border);
}

.mindmap-tools-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.mindmap-scale-badge {
  display: inline-block;
  min-width: 48px;
  text-align: center;
  font-size: 12px;
  font-weight: 850;
  color: #047857;
  background: #d1fae5;
  padding: 4px 8px;
  border-radius: 6px;
}

.mindmap-scroll {
  overflow: auto;
  max-height: 72vh;
  padding: 24px 20px;
  background-color: var(--surface);
  background-image: radial-gradient(rgba(16, 185, 129, 0.12) 1.5px, transparent 1.5px);
  background-size: 20px 20px;
  -webkit-overflow-scrolling: touch;
  transition: background-color 0.2s;
}

/* 現代貝茲曲線連接線 */
.mindmap path.mindmap-branch {
  fill: none;
  stroke-linecap: round;
  transition: stroke 0.2s ease, stroke-width 0.2s ease;
}
.mindmap path.depth-1 {
  stroke: #059669;
  stroke-width: 2.8;
}
.mindmap path.depth-2 {
  stroke: #0284c7;
  stroke-width: 2.2;
}
.mindmap path.depth-3 {
  stroke: #d97706;
  stroke-width: 1.8;
}
.mindmap path.depth-4 {
  stroke: #7c3aed;
  stroke-width: 1.6;
}

/* 多層級節點視覺設計 */
.mindmap-rect {
  transition: filter 0.2s, stroke-width 0.2s;
}
.mindmap-node-group:hover .mindmap-rect {
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.12));
}

/* Depth 0: 章節根節點 */
.mindmap-rect.depth-0 {
  fill: #065f46;
  stroke: #047857;
  stroke-width: 2.5;
  filter: drop-shadow(0 4px 10px rgba(6, 95, 70, 0.3));
}
.mindmap-node-group.depth-0 .mindmap-primary,
.mindmap-node-group.depth-0 .mindmap-secondary {
  fill: #ffffff !important;
  font-weight: 850;
}

/* Depth 1: 大主題 */
.mindmap-rect.depth-1 {
  fill: #ecfdf5;
  stroke: #10b981;
  stroke-width: 1.8;
  filter: drop-shadow(0 2px 6px rgba(16, 185, 129, 0.15));
}
.mindmap-node-group.depth-1 .mindmap-primary {
  fill: #065f46;
  font-weight: 800;
}
.mindmap-node-group.depth-1 .mindmap-secondary {
  fill: #047857;
}

/* Depth 2: 子概念 */
.mindmap-rect.depth-2 {
  fill: #f0f9ff;
  stroke: #0ea5e9;
  stroke-width: 1.5;
  filter: drop-shadow(0 2px 5px rgba(14, 165, 233, 0.12));
}
.mindmap-node-group.depth-2 .mindmap-primary {
  fill: #0369a1;
  font-weight: 750;
}
.mindmap-node-group.depth-2 .mindmap-secondary {
  fill: #0284c7;
}

/* Depth 3+: 藥物或考點細節 */
.mindmap-rect.depth-3,
.mindmap-rect.depth-4 {
  fill: #fffbeb;
  stroke: #f59e0b;
  stroke-width: 1.4;
  filter: drop-shadow(0 2px 4px rgba(245, 158, 11, 0.1));
}
.mindmap-node-group.depth-3 .mindmap-primary,
.mindmap-node-group.depth-4 .mindmap-primary {
  fill: #78350f;
  font-weight: 700;
}

/* 圓形展開/收合切換按鈕 (穩固無晃動、大感應區) */
.mindmap-toggle-group {
  cursor: pointer;
}
.mindmap-toggle-circle {
  fill: #ffffff;
  stroke: #10b981;
  stroke-width: 2;
  transition: fill 0.15s ease, stroke 0.15s ease;
}
.mindmap-toggle-circle.is-collapsed {
  fill: #f59e0b;
  stroke: #d97706;
}
.mindmap-toggle-circle:hover {
  fill: #d1fae5;
  stroke: #059669;
}
.mindmap-toggle-circle.is-collapsed:hover {
  fill: #fde68a;
  stroke: #b45309;
}
.mindmap-toggle-hit {
  cursor: pointer;
  pointer-events: all;
}
.mindmap-toggle-icon {
  font-size: 13px;
  font-weight: 900;
  fill: #065f46;
  pointer-events: none;
}
.mindmap-toggle-circle.is-collapsed + .mindmap-toggle-icon {
  fill: #ffffff;
}

/* 子節點計數小圓點 (Badge) */
.mindmap-count-badge {
  fill: #ef4444;
  stroke: #ffffff;
  stroke-width: 1.5;
  pointer-events: none;
}
.mindmap-count-num {
  font-size: 9px;
  font-weight: 900;
  fill: #ffffff;
  pointer-events: none;
}

/* ==== 開藥計算機（每日一藥卡片上的小按鈕叫出） ==== */
.dosing-overlay,.dosing-overlay *{box-sizing:border-box}
.dosing-overlay{position:fixed;inset:0;z-index:3000;background:rgba(15,59,77,.55);display:flex;align-items:center;justify-content:center;padding:16px}
.dosing-modal{background:#EAF6F1;color:#0F3B4D;border:2px solid #135D63;border-radius:20px;box-shadow:4px 4px 0 #135D63;width:min(720px,100%);max-height:min(86vh,860px);display:flex;flex-direction:column;font-family:'Noto Sans TC','Microsoft JhengHei',sans-serif;font-size:15px}
.dosing-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid #135D63}
.dosing-title{font-size:17px}
.dosing-close{background:none;border:1px solid #135D63;border-radius:10px;min-width:36px;min-height:36px;font-size:16px;cursor:pointer}
.dosing-body{padding:14px 18px;overflow:auto;overscroll-behavior:contain}
.dosing-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.dosing-search{flex:1 1 100%;width:100%;min-height:42px;padding:9px 13px;border:1px solid #135D63;border-radius:12px;background:#fff;font-size:15px}
.dosing-druglist{display:flex;flex-wrap:wrap;gap:6px;padding:2px 0 10px;margin-bottom:12px;border-bottom:1px dashed #135D63}
.dosing-drug{border:1px solid #135D63;border-radius:999px;background:#fff;padding:5px 12px;font-size:13px;cursor:pointer}

/* ── 開藥計算機：藥物下拉選單（頂端可搜尋）＋整頁分頁 ── */
.dosing-page{padding:20px 22px;margin-bottom:22px}
.dosing-picker-wrap{position:relative;width:100%;flex:1 1 100%}
.dosing-picker{width:100%;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 13px;border:1px solid #135D63;border-radius:12px;background:#fff;font:inherit;font-size:15.5px;color:var(--ink,#0F3B4D);cursor:pointer;text-align:left}
.dosing-picker:hover,.dosing-picker.is-open{background:#F4FBF8}
.dosing-picker-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.dosing-picker-label.is-placeholder{font-weight:400;color:#5F7F84}
.dosing-picker-caret{font-size:13px;color:#135D63;transition:transform .15s}
.dosing-picker.is-open .dosing-picker-caret{transform:rotate(180deg)}
.dosing-menu{position:absolute;z-index:60;top:calc(100% + 6px);left:0;right:0;background:#fff;border:2px solid #135D63;border-radius:14px;box-shadow:4px 4px 0 #135D63;padding:10px;max-height:min(52vh,460px);display:flex;flex-direction:column;gap:8px}
.dosing-menu[hidden]{display:none}
.dosing-menu .dosing-search{position:sticky;top:0;flex:0 0 auto}
.dosing-menu .dosing-druglist{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;max-height:none;margin-bottom:0;padding-bottom:2px;flex-direction:column;flex-wrap:nowrap;align-items:stretch;gap:5px;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.dosing-menu .dosing-drug{width:100%;text-align:left}
.dosing-drug.is-on{background:#135D63;color:#fff;border-color:#135D63}
.dosing-drug.is-on{background:#135D63;color:#fff}
.dosing-drug:disabled{opacity:.45;cursor:not-allowed}
.dosing-species{display:flex;gap:6px}
.dosing-chip{border:1px solid #135D63;border-radius:999px;background:#fff;padding:7px 14px;font-size:14px;cursor:pointer}
.dosing-chip.is-on{background:#135D63;color:#fff}
.dosing-chip.is-none{opacity:.4;cursor:not-allowed}
.dosing-weight{display:flex;align-items:center;gap:8px;margin-left:auto;font-size:14px}
.dosing-weight input{min-height:38px;width:96px;padding:4px 10px;border:1px solid #135D63;border-radius:12px;background:#fff;font-size:15px}
.dosing-result{margin-top:4px}
.dosing-drugname{margin:8px 0;font-size:16px}
.dosing-entry{background:#fff;border:1px solid #135D63;border-radius:14px;padding:10px 12px;margin-bottom:8px}
.dosing-entry-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;font-weight:700}
.dosing-badge{border-radius:999px;padding:2px 8px;font-size:12px;border:1px solid currentColor}
.dosing-badge.is-label{color:#0b6b3a}
.dosing-badge.is-extra{color:#a15c07}
.dosing-indication{margin:6px 0 2px;font-size:14px;font-weight:700}
.dosing-dose{margin:6px 0;font-size:15.5px;line-height:1.7;font-weight:600;color:#0b3b4d}
.dosing-pills{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 0}
.dosing-pill{background:#e3f2ec;border:1px solid #9fc9bd;border-radius:999px;padding:3px 10px;font-size:12.5px;color:#0f4b52;font-weight:700}
.dosing-pill.is-unknown{background:#fff6e6;border-color:#e0b877;color:#8a5a10}
.dosing-meta{margin:2px 0;font-size:13px;color:#2b4f57}
.dosing-note{margin:4px 0 0;font-size:13px;color:#8a4b08}
.dosing-calc{margin:6px 0 0;font-size:14px;font-weight:700;color:#0b5d66}
.dosing-cautions{margin-top:10px;font-size:13px;color:#7a2e1c}
.dosing-src{margin-top:6px;font-size:12px;color:#587075}
.dosing-empty{padding:16px 0;font-size:14px;color:#587075}
.dosing-foot{padding:10px 16px;border-top:1px solid #135D63;font-size:12px;color:#2b4f57}
.dosing-foot p{margin:2px 0}
@media(max-width:760px){.dosing-modal{border-radius:16px;max-height:92vh}.dosing-weight{margin-left:0;width:100%}.dosing-body{padding:12px 13px}.dosing-bar{padding:10px 13px}.dosing-foot{padding:8px 13px;font-size:11.5px}.dosing-drug{padding:6px 11px}}

/* ── 開藥計算機：全螢幕覆蓋層（像是蓋在原頁面上的另一頁）── */
.tab-btn-dosing{border-color:#135D63;background:#135D63;color:#fff}
.tab-btn-dosing:hover{background:#0F4A50}
.dosing-overlay{position:fixed;inset:0;z-index:200;background:rgba(12,40,45,.55);display:flex;align-items:stretch;justify-content:center;padding:0;overflow-y:auto}
.dosing-modal{background:#fff;width:100%;max-width:900px;display:flex;flex-direction:column;min-height:100%;box-shadow:0 24px 60px rgba(0,0,0,.35)}
.dosing-bar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;padding-top:calc(14px + env(safe-area-inset-top));background:#135D63;color:#fff}
.dosing-title{font-size:17px;letter-spacing:.02em}
.dosing-close{width:44px;height:44px;flex:0 0 auto;border:0;border-radius:12px;background:rgba(255,255,255,.22);color:#fff;font-size:20px;line-height:1;cursor:pointer;position:relative;z-index:6;touch-action:manipulation}
.dosing-close:hover{background:rgba(255,255,255,.3)}
.dosing-body{padding:16px 18px 6px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.dosing-foot{margin-top:auto;padding:12px 18px 20px;border-top:1px dashed #CDE7E2;font-size:12.5px;color:#5F7F84;line-height:1.6}
.dosing-foot p{margin:0 0 4px}
@media (min-width:901px){
  .dosing-overlay{padding:28px 18px}
  .dosing-modal{min-height:0;max-height:calc(100vh - 56px);border-radius:16px;overflow:hidden}
  .dosing-body{overflow-y:auto}
}

/* 開藥計算機：指引療程（原文未載明時附國際指引） */
.dosing-pill.is-guide{border-color:#2C7A7B;background:#E6F4F2;color:#14595F}
.dosing-guide{margin-top:10px;padding:10px 12px;border-left:3px solid #2C7A7B;background:#F2FAF9;border-radius:8px}
.dosing-guide p{margin:0 0 6px}
.dosing-guide-head{font-weight:800;color:#14595F;font-size:13px}
.dosing-guide-quote{font-size:12.5px;line-height:1.6;color:#41595E}
.dosing-guide-link{font-size:12px;color:#2C7A7B;text-decoration:none;word-break:break-all}
.dosing-guide-link:hover{text-decoration:underline}