/**
 * 制作台 · 候选草稿台 / 沉浸阅读 / 孪生对照 / 关系图坞（P-css-i：从 shot-layout 切出）
 */

/* —— 候选草稿台 · 分区 / 色调 / 图标按钮（v1.0.61+） —— */
:root {
  --igs-cand-amber: #9a6b2f;
  --igs-cand-amber-soft: #f7f0e4;
  --igs-cand-ink: #1c2420;
  --igs-cand-moss: #1a6b52;
}
.igs-nv-cands.is-desk {
  --igs-cand-amber: #9a6b2f;
}
.igs-nv-cands__chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem;
  flex: 0 0 auto;
  padding: 0.5rem 0.6rem 0.42rem;
  border-bottom: 1px solid rgba(90, 70, 40, 0.1);
  background: linear-gradient(180deg, #faf6ef, rgba(255, 252, 247, 0.4));
}
.igs-nv-cands__chrome-main {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}
.igs-nv-cands__chrome-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.5rem;
  background: color-mix(in srgb, var(--igs-cand-amber) 16%, #fff);
  color: var(--igs-cand-amber);
  flex: 0 0 auto;
}
.igs-nv-cands__chrome h3 {
  margin: 0;
  font-size: 0.92rem;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 700;
  color: var(--igs-cand-ink);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}
.igs-nv-cands__chrome p {
  margin: 0.08rem 0 0;
  font-size: 0.68rem;
  color: #7a6a58;
}
.igs-nv-cands__chrome p b {
  color: var(--igs-cand-moss);
  font-weight: 750;
}
.igs-nv-cands__scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 0.4rem 0.55rem 0.55rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.igs-nv-cands__dock {
  flex: 0 0 auto;
  min-height: 0;
}
.igs-nv-cand-ico-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.22rem;
  border: 1px solid rgba(26, 50, 40, 0.12);
  background: #fff;
  color: #2a3832;
  font: inherit;
  font-size: 0.7rem;
  font-weight: 650;
  line-height: 1.15;
  padding: 0.28rem 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.igs-nv-cand-ico-btn .igs-ws-ico {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}
.igs-nv-cand-ico-btn:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--igs-cand-moss) 40%, transparent);
  background: #f3faf6;
}
.igs-nv-cand-ico-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.igs-nv-cand-ico-btn.is-ghost {
  background: transparent;
  border-color: transparent;
  color: #4a5a52;
}
.igs-nv-cand-ico-btn.is-ghost:hover:not(:disabled) {
  background: rgba(26, 50, 40, 0.05);
  border-color: transparent;
}
.igs-nv-cand-ico-btn.is-primary {
  background: linear-gradient(160deg, #1f7a5e, #145a45);
  border-color: #145a45;
  color: #f3faf6;
}
.igs-nv-cand-ico-btn.is-primary:hover:not(:disabled) {
  filter: brightness(1.05);
  background: linear-gradient(160deg, #218a68, #16634c);
}
.igs-nv-cand-ico-btn.is-lg {
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
}
.igs-nv-cand-ico-btn.is-on {
  border-color: color-mix(in srgb, var(--igs-cand-moss) 45%, transparent);
  background: #eef8f2;
  color: #145a45;
}
.igs-nv-cands.is-desk .igs-nv-cand-filters {
  margin: 0;
  gap: 0.25rem;
}
.igs-nv-cands.is-desk .igs-nv-cand-filter {
  background: rgba(255, 255, 255, 0.75);
  border-color: rgba(90, 70, 40, 0.12);
  color: #5a5040;
}
.igs-nv-cands.is-desk .igs-nv-cand-filter.is-on {
  border-color: color-mix(in srgb, var(--igs-cand-amber) 40%, transparent);
  background: var(--igs-cand-amber-soft);
  color: #6a4a22;
}
.igs-nv-cands.is-desk .igs-nv-cand-toolbar {
  margin: 0;
  gap: 0.28rem;
}
.igs-nv-cands.is-desk .igs-nv-cand-list {
  margin: 0;
  gap: 0.35rem;
}
.igs-nv-cands.is-desk .igs-nv-cand-item {
  align-items: stretch;
  padding: 0.4rem 0.4rem 0.4rem 0.2rem;
  border-radius: 0.65rem;
  border-color: rgba(90, 70, 40, 0.1);
  background: #fff;
  gap: 0.35rem;
}
.igs-nv-cands.is-desk .igs-nv-cand-item.is-on {
  border-color: color-mix(in srgb, var(--igs-cand-moss) 42%, transparent);
  background: linear-gradient(90deg, rgba(26, 107, 82, 0.07), #fff 40%);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--igs-cand-moss) 10%, transparent);
}
.igs-nv-cands.is-desk .igs-nv-cand-item.is-latest {
  border-color: color-mix(in srgb, var(--igs-cand-amber) 45%, transparent);
}
.igs-nv-cand-item__dot {
  width: 0.42rem;
  align-self: stretch;
  border-radius: 999px;
  background: #c5b8a4;
  flex: 0 0 auto;
  margin: 0.15rem 0 0.15rem 0.15rem;
}
.igs-nv-cand-item.is-st-pending .igs-nv-cand-item__dot {
  background: var(--igs-cand-moss);
}
.igs-nv-cand-item.is-st-adopted .igs-nv-cand-item__dot {
  background: #5b7c99;
}
.igs-nv-cand-item.is-st-discarded .igs-nv-cand-item__dot {
  background: #b0a498;
}
.igs-nv-cand-pick {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}
.igs-nv-cand-item__body {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  min-width: 0;
  flex: 1 1 auto;
}
.igs-nv-cand-item__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.22rem;
  align-items: center;
  justify-content: flex-end;
}
.igs-nv-cands.is-desk .igs-nv-cand-focus {
  margin-top: 0.15rem;
  padding: 0.55rem 0.6rem 0.65rem;
  border-radius: 0.7rem;
  border: 1px solid rgba(26, 50, 40, 0.1);
  background: #fffcf7;
}
.igs-nv-cand-focus__head {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-bottom: 0.35rem;
}
.igs-nv-cand-focus__titles strong {
  font-size: 0.92rem;
  color: var(--igs-cand-ink);
}
.igs-nv-cand-focus__primary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.35rem 0 0.45rem;
}
.igs-nv-cand-focus__more {
  margin: 0 0 0.45rem;
  border: 1px dashed rgba(90, 70, 40, 0.18);
  border-radius: 0.55rem;
  padding: 0.15rem 0.45rem 0.35rem;
  background: rgba(247, 240, 228, 0.35);
}
.igs-nv-cand-focus__more > summary {
  list-style: none;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 650;
  color: #5a5040;
  padding: 0.35rem 0.1rem;
  display: flex;
  align-items: center;
  gap: 0.28rem;
}
.igs-nv-cand-focus__more > summary::-webkit-details-marker { display: none; }
.igs-nv-cand-focus__more .igs-nv-cand-meta {
  margin: 0.2rem 0 0.35rem;
}
.igs-ws-result-acts.is-cand-secondary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.28rem;
}
.igs-ws-latest-cand.is-compact {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0.4rem 0.5rem;
  border-radius: 0.55rem;
  border: 1px solid color-mix(in srgb, var(--igs-cand-amber) 22%, transparent);
  background: linear-gradient(90deg, rgba(154, 107, 47, 0.08), #fff 55%);
}
.igs-ws-latest-cand.is-compact.is-empty {
  border-style: dashed;
  background: rgba(255, 255, 255, 0.55);
  color: #7a6a58;
  font-size: 0.72rem;
}
.igs-ws-latest-cand__ico {
  display: inline-flex;
  color: var(--igs-cand-amber);
  flex: 0 0 auto;
}
.igs-ws-latest-cand.is-compact .igs-ws-latest-cand__main {
  flex: 1 1 auto;
  min-width: 0;
}
.igs-ws-latest-cand.is-compact .igs-ws-latest-cand__main b {
  display: block;
  font-size: 0.66rem;
  color: var(--igs-cand-amber);
  letter-spacing: 0.02em;
}
.igs-ws-latest-cand.is-compact .igs-ws-latest-cand__main strong {
  display: block;
  font-size: 0.8rem;
  color: var(--igs-cand-ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.igs-ws-latest-cand.is-compact .igs-ws-latest-cand__main span {
  font-size: 0.66rem;
  color: #7a6a58;
}
.igs-ws-latest-cand.is-compact .igs-ws-latest-cand__acts {
  flex: 0 0 auto;
}
.igs-nv-ai-empty.is-cands-empty {
  padding: 0.75rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.igs-nv-ai-empty__hero {
  text-align: center;
  padding: 0.65rem 0.5rem 0.35rem;
}
.igs-nv-ai-empty__ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.7rem;
  background: color-mix(in srgb, var(--igs-cand-amber) 14%, #fff);
  color: var(--igs-cand-amber);
  margin-bottom: 0.35rem;
}
.igs-nv-ai-empty__ico .igs-ws-ico {
  width: 22px;
  height: 22px;
}
.igs-nv-ai-empty__hero h4 {
  margin: 0 0 0.2rem;
  font-family: "Noto Serif SC", serif;
  font-size: 1rem;
  color: var(--igs-cand-ink);
}
.igs-nv-ai-empty__hero p {
  margin: 0;
  font-size: 0.72rem;
  color: #7a6a58;
}
.igs-nv-cand-empty-box.is-hero {
  text-align: center;
  padding: 1rem 0.85rem;
}
.igs-nv-cand-empty-box__ico {
  display: inline-flex;
  color: var(--igs-cand-amber);
  margin-bottom: 0.35rem;
}
.igs-nv-cand-empty-box__ico .igs-ws-ico {
  width: 22px;
  height: 22px;
}
.igs-nv-cand-twin-hint {
  display: flex;
  align-items: flex-start;
  gap: 0.3rem;
  margin: 0;
  padding: 0.35rem 0.45rem;
  font-size: 0.7rem;
  color: #5a4630;
  background: rgba(154, 107, 47, 0.08);
  border-radius: 0.45rem;
}
.igs-nv-cand-dlg {
  border: 1px solid var(--igs-line);
  border-radius: 14px;
  padding: 0;
  max-width: min(92vw, 36rem);
  background: var(--igs-shell);
}
.igs-nv-cand-dlg__form { padding: 1rem 1.1rem 1.15rem; display: flex; flex-direction: column; gap: 0.55rem; }
.igs-nv-cand-dlg__form h4 { margin: 0; font-family: "Noto Serif SC", serif; }
.igs-nv-cand-dlg__form textarea {
  width: 100%; border: 1px solid var(--igs-line); border-radius: 10px;
  padding: 0.55rem 0.65rem; font: inherit; resize: vertical; min-height: 12rem;
  box-sizing: border-box;
}
@media (max-width: 860px) {
  .igs-nv-cand-compare { grid-template-columns: 1fr; }
}
.igs-novel-ep-card {
  display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin: 0.35rem 0 0.75rem;
}
.igs-nv-sort {
  display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center;
  margin: 0 0 0.75rem; flex: 0 0 auto;
}
.igs-nv-sort__lab {
  font-size: 0.78rem; color: var(--igs-muted); margin-right: 0.15rem;
}
.igs-nv-sort__btn {
  border: 1px solid var(--igs-line); background: var(--igs-shell); color: #3d453e;
  border-radius: 999px; padding: 0.22rem 0.7rem; font: inherit; font-size: 0.78rem;
  cursor: pointer;
}
.igs-nv-sort__btn:hover { border-color: color-mix(in srgb, var(--igs-accent) 45%, transparent); }
.igs-nv-sort__btn.is-active {
  background: var(--igs-accent); color: var(--igs-on-accent, #142028); border-color: var(--igs-accent); font-weight: 700;
}
.igs-nv-ch-panel {
  min-height: 0; max-height: 78vh; overflow: auto; overscroll-behavior: contain;
  border: 1px solid var(--igs-line); border-radius: 0.85rem; padding: 0.85rem;
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--igs-elev) 94%, var(--igs-accent)) 0%,
    color-mix(in srgb, var(--igs-paper) 82%, var(--igs-mist)) 100%
  );
  color: var(--igs-ink);
}
.igs-nv-ch-panel__head {
  display: flex; justify-content: space-between; gap: 0.5rem; align-items: baseline;
  margin-bottom: 0.65rem;
}
.igs-nv-ch-panel__head h3 { margin: 0; font-size: 0.95rem; font-family: "Noto Serif SC", serif; color: var(--igs-ink); }
.igs-novel-layout--cards:not(.has-reader) .igs-nv-ch-panel {
  max-height: none;
}

/* 单元壳 · 按单元分组的章节目录 */
.igs-nv-ch-toc.is-unit-shell {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.igs-nv-ch-toc.is-volume-shell,
.igs-nv-ch-vol-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.igs-nv-ch-vol-stack.is-nested {
  gap: 0.5rem;
  padding: 0 0.15rem 0.15rem;
}
.igs-nv-ch-unit-group {
  border: 1px solid color-mix(in srgb, #3d9a7a 22%, var(--igs-line));
  border-radius: 0.85rem;
  background: linear-gradient(165deg, #f4faf6 0%, color-mix(in srgb, var(--igs-elev) 94%, #efe6d8) 100%);
  padding: 0.55rem 0.55rem 0.7rem;
}
.igs-nv-ch-vol-group {
  border: 1px solid color-mix(in srgb, #8a6b3d 18%, var(--igs-line));
  border-radius: 0.7rem;
  background: color-mix(in srgb, var(--igs-elev) 92%, #f3ebe0);
  padding: 0.45rem 0.45rem 0.55rem;
}
.igs-nv-ch-vol-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 0.65rem;
  padding: 0.1rem 0.3rem 0.4rem;
}
.igs-nv-ch-vol-group__head strong {
  font-family: "Noto Serif SC", serif;
  font-size: 0.86rem;
  color: #4a3820;
}
.igs-nv-ch-unit-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
  padding: 0.2rem 0.35rem 0.55rem;
}
.igs-nv-ch-unit-group__head strong {
  font-family: "Noto Serif SC", serif;
  font-size: 0.92rem;
  color: #1a4a38;
}
.igs-nv-ch-unit-group .igs-nv-ch-cards,
.igs-nv-ch-vol-group .igs-nv-ch-cards {
  gap: 0.45rem;
}

/* 官方概念 · 书壳 / 单元分组 */
.igs-nv-concept-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed color-mix(in srgb, var(--igs-line) 80%, #9bb8a6);
}
.igs-nv-concept-group:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}
.igs-nv-concept-group__lab {
  margin: 0 0 0.15rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #1a4a38;
}
.igs-nv-concept-group[data-scope="book"] .igs-nv-concept-group__lab {
  color: #5a3d28;
}
.igs-nv-concept-scope {
  display: inline-flex;
  align-items: center;
  padding: 0.08rem 0.4rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  font-style: normal;
}
.igs-nv-concept-scope.is-book {
  color: #6a4028;
  background: #f6ebe0;
  border: 1px solid #e0c4a8;
}
.igs-nv-concept-scope.is-unit {
  color: #1a4a38;
  background: #e8f6ee;
  border: 1px solid #9fd0b8;
}
.igs-nv-concept-split-hint {
  margin: 0.35rem 0 0;
  font-size: 0.75rem;
  color: #1a4a38;
  background: #e8f6ee;
  border-radius: 0.45rem;
  padding: 0.35rem 0.5rem;
}

/* —— 阅读沉浸：收起多层顶栏，把高度还给正文 —— */
body.igs-nv-reading-lean .igs-novel-subnav {
  display: none !important;
}
body.igs-nv-reading-lean .igs-shell-station-context {
  display: none !important;
}
body.igs-nv-reading-lean .igs-ux3-law-gate-host {
  display: none !important;
}
body.igs-nv-reading-lean .igs-ux3-law-gate {
  display: none !important;
}
body.igs-nv-reading-lean .igs-nv-studio.is-reading-lean {
  gap: 0;
}
.igs-nv-chrome.is-reading-lean {
  padding: 0.28rem 0.35rem;
  gap: 0.35rem 0.55rem;
  position: sticky;
  top: 0;
  z-index: 8;
}
.igs-nv-chrome.is-reading-lean .igs-nv-chrome__mark {
  display: none;
}
.igs-nv-chrome.is-reading-lean .igs-nv-chrome__titles strong {
  font-size: 0.92rem;
}
.igs-nv-chrome.is-reading-lean .igs-nv-chrome__views.is-compact {
  padding: 0.08rem;
}
.igs-nv-chrome.is-reading-lean .igs-nv-chrome__view {
  padding: 0.22rem 0.5rem;
  font-size: 0.76rem;
}
.igs-nv-read-lean-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.65rem;
  padding: 0.28rem 0.45rem;
  border-bottom: 1px solid color-mix(in srgb, var(--igs-line) 85%, #9bb8a6);
  background: color-mix(in srgb, var(--igs-elev) 92%, #e8f4ec);
  position: sticky;
  top: 2.4rem;
  z-index: 7;
}
.igs-nv-read-lean-bar__locus {
  flex: 1 1 10rem;
  min-width: 0;
  font-size: 0.78rem;
  color: var(--igs-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.igs-nv-read-lean-bar__locus em {
  font-style: normal;
  color: var(--igs-ink);
  margin-left: 0.25rem;
}
.igs-nv-read-lean-bar__acts {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.igs-nv-read-lean-bar__expand {
  font-weight: 700;
  color: #1a4a38 !important;
}

/* 沉浸阅读 ≠ 沉浸写作 · 双入口 */
.igs-nv-immerse-dock {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0.35rem 0.45rem 0.15rem;
}
.igs-nv-immerse-switch {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem;
  border-radius: 0.55rem;
  border: 1px solid color-mix(in srgb, var(--igs-line) 88%, #7a9e8c);
  background: color-mix(in srgb, var(--igs-elev) 94%, #eef6f1);
}
.igs-nv-immerse-switch.is-read-on {
  border-color: #6bb89a;
  background: linear-gradient(120deg, #e7f7ef, #f4fbf7);
}
.igs-nv-immerse-switch.is-write-on {
  border-color: #c4a574;
  background: linear-gradient(120deg, #fbf4e8, #fffaf2);
}
.igs-nv-immerse-switch__btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 0.4rem;
  padding: 0.28rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--igs-ink);
  line-height: 1.2;
}
.igs-nv-immerse-switch__btn:hover {
  background: rgba(255,255,255,0.75);
}
.igs-nv-immerse-switch__btn.is-read.is-on,
.igs-nv-immerse-switch__btn.is-read:hover {
  color: #145c45;
  border-color: #8dceb4;
  background: #fff;
}
.igs-nv-immerse-switch__btn.is-write {
  color: #6b4a1e;
}
.igs-nv-immerse-switch__btn.is-write:hover {
  border-color: #e0c089;
  background: #fff;
}
.igs-nv-immerse-switch__btn i {
  font-style: normal;
  margin-left: 0.15rem;
  font-weight: 800;
  opacity: 0.75;
}
.igs-nv-immerse-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.igs-nv-immerse-badge.is-read {
  color: #145c45;
  background: #d8f3e6;
  border: 1px solid #8dceb4;
}
.igs-nv-immerse-badge.is-write {
  color: #6b4a1e;
  background: #f8e8c8;
  border: 1px solid #e0c089;
}
.igs-nv-read-lean-bar .igs-nv-immerse-switch {
  flex: 0 1 auto;
}
.igs-novel-reader-head__actions .igs-nv-immerse-switch {
  order: -1;
}

.igs-nv-reading-lean-hint {
  align-self: flex-start;
  margin: 0.2rem 0.35rem;
  font-size: 0.75rem;
}
body.igs-nv-reading-lean .igs-nv-studio.is-reading-lean .igs-nv-mseg {
  display: none;
}
body.igs-nv-reading-lean .igs-nv-studio.is-reading-lean .igs-nv-reader-wrap {
  min-height: 0;
  flex: 1;
}
body.igs-nv-reading-lean .igs-nv-studio.is-reading-lean .igs-novel-reader {
  max-height: none;
}
body.igs-nv-reading-lean .igs-nv-studio__body {
  min-height: 0;
  flex: 1;
}
@media (min-width: 901px) {
  body.igs-nv-reading-lean .igs-nv-studio.is-reading-lean .igs-novel-layout--cards.has-reader.is-toc-collapsed .igs-novel-reader {
    min-height: calc(100vh - 9.5rem);
  }
}

.igs-nv-story-strip.is-shape-unit-shell-chapters {
  border-color: color-mix(in srgb, #2f7a5c 32%, var(--igs-line));
}
.igs-nv-chip.is-shell {
  background: linear-gradient(120deg, #e8f6ee, #f6ebe0);
  border-color: #9fd0b8;
}

.igs-nv-ch-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
}
.igs-nv-unit-head {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
  margin: 0.35rem 0 0;
  padding: 0.35rem 0.2rem 0.45rem;
  border-bottom: 1px dashed color-mix(in srgb, var(--igs-line) 80%, #9bb8a6);
  font-family: "Noto Serif SC", serif;
}
.igs-nv-unit-head:first-child {
  margin-top: 0;
}
.igs-nv-unit-head strong {
  font-size: 0.92rem;
  color: #1a4a38;
}
.igs-nv-ch-badge.is-unit {
  background: color-mix(in srgb, var(--igs-accent) 16%, transparent);
}
.igs-novel-layout--cards:not(.has-reader) .igs-nv-ch-cards {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}
.igs-nv-ch-card {
  display: flex; flex-direction: column; gap: 0.35rem;
  text-align: left; width: 100%;
  border: 1px solid var(--igs-line); border-radius: 0.7rem;
  background: color-mix(in srgb, var(--igs-elev) 96%, var(--igs-mist));
  padding: 0.7rem 0.8rem;
  cursor: pointer; font: inherit; color: var(--igs-ink);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.12s;
}
.igs-nv-ch-card:hover {
  border-color: color-mix(in srgb, var(--igs-accent) 40%, var(--igs-line));
  background: color-mix(in srgb, var(--igs-accent) 8%, var(--igs-elev));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--igs-ink) 8%, transparent);
  transform: translateY(-1px);
}
.igs-nv-ch-card.is-active {
  border-color: var(--igs-accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--igs-accent) 18%, transparent);
  background: color-mix(in srgb, var(--igs-accent) 10%, var(--igs-elev));
}
.igs-nv-ch-card__head {
  display: flex; justify-content: space-between; gap: 0.4rem; align-items: center;
}
.igs-nv-ch-card__id {
  display: inline-flex; align-items: center; gap: 0.35rem; flex-wrap: wrap;
  font-size: 0.72rem; font-weight: 700; color: var(--igs-accent); letter-spacing: 0.02em;
}
.igs-nv-ch-badge {
  display: inline-block; font-style: normal; font-weight: 800;
  font-size: 0.65rem; letter-spacing: 0.06em;
  padding: 0.08rem 0.35rem; border-radius: 4px;
  background: var(--igs-accent-2); color: var(--igs-on-accent, #fff8f0); vertical-align: middle;
}
.igs-nv-ch-badge.is-twin {
  background: var(--igs-accent);
  color: var(--igs-on-accent, #f3faf6);
}
.igs-nv-ch-badge.is-know-ready {
  background: color-mix(in srgb, #2f7a4b 78%, var(--igs-elev));
  color: #f4fff8;
}
.igs-nv-ch-badge.is-know-draft {
  background: color-mix(in srgb, #b07a22 72%, var(--igs-elev));
  color: #fff8ec;
}
.igs-nv-ch-badge.is-know-pending {
  background: color-mix(in srgb, var(--igs-muted) 28%, var(--igs-elev));
  color: var(--igs-ink, #3a403c);
  font-weight: 700;
}
.igs-nv-ch-card.is-twin {
  border-color: color-mix(in srgb, var(--igs-accent) 35%, var(--igs-line));
}
.igs-nv-ch-card.is-test {
  border-style: dashed;
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--igs-warn) 8%, var(--igs-elev)) 0%,
    color-mix(in srgb, var(--igs-warn) 14%, var(--igs-paper)) 100%
  );
}

/* —— 孪生对照阅读（原史 A | 穿越 B）· 改写同屏（原小说 A | 改后 B） —— */
.igs-nv-twin-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0.55rem;
  padding: 0.35rem 0.15rem;
  flex: 0 0 auto;
}
.igs-nv-twin-bar__lab {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--igs-muted);
  letter-spacing: 0.06em;
}
.igs-nv-twin-bar__btn {
  border: 1px solid var(--igs-line);
  background: var(--igs-shell);
  color: #3d453e;
  border-radius: 999px;
  padding: 0.22rem 0.7rem;
  font: inherit;
  font-size: 0.76rem;
  cursor: pointer;
}
.igs-nv-twin-bar__btn:hover { border-color: color-mix(in srgb, var(--igs-accent) 45%, transparent); }
.igs-nv-twin-bar__btn.is-active,
.igs-nv-twin-bar__btn.is-on {
  background: linear-gradient(135deg, var(--igs-accent), var(--igs-color-cta, var(--igs-accent-2)));
  color: var(--igs-on-accent, #142028);
  border-color: transparent;
  font-weight: 700;
}
.igs-nv-twin-bar__hint {
  margin-left: auto;
  font-size: 0.7rem;
}
.igs-novel-reader:has(.igs-nv-twin),
.igs-novel-reader:has(.igs-nv-twin-solo) {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}
.igs-novel-reader:has(.igs-nv-twin) > .igs-novel-reader-head,
.igs-novel-reader:has(.igs-nv-twin) > .igs-novel-meta,
.igs-novel-reader:has(.igs-nv-twin) > .igs-nv-twin-bar,
.igs-novel-reader:has(.igs-nv-twin) > .igs-nv-draft-banner,
.igs-novel-reader:has(.igs-nv-twin) > .igs-nv-ch-nav,
.igs-novel-reader:has(.igs-nv-twin) > .igs-nv-comments,
.igs-novel-reader:has(.igs-nv-twin-solo) > .igs-novel-reader-head,
.igs-novel-reader:has(.igs-nv-twin-solo) > .igs-novel-meta,
.igs-novel-reader:has(.igs-nv-twin-solo) > .igs-nv-twin-bar,
.igs-novel-reader:has(.igs-nv-twin-solo) > .igs-nv-draft-banner,
.igs-novel-reader:has(.igs-nv-twin-solo) > .igs-nv-ch-nav,
.igs-novel-reader:has(.igs-nv-twin-solo) > .igs-nv-comments {
  flex: 0 0 auto;
}
.igs-novel-reader:has(.igs-nv-twin) .igs-nv-comments,
.igs-novel-reader:has(.igs-nv-twin) .igs-nv-cands,
.igs-novel-reader:has(.igs-nv-twin) .igs-nv-ch-nav {
  max-height: 28vh;
  overflow: auto;
}
.igs-novel-reader:has(.igs-nv-twin) .igs-nv-cands {
  max-height: 36vh;
}
.igs-nv-cand-twin-hint {
  margin: 0 0 0.55rem;
  font-size: 0.8rem;
  color: #6a4a28;
}
.igs-nv-twin {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.65rem;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  align-self: stretch;
}
.igs-nv-twin--rewrite .igs-nv-twin-col.is-a .igs-nv-twin-col__hd em {
  background: #8a5a2b;
}
.igs-nv-twin-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  border: 1px solid var(--igs-line);
  border-radius: 0.75rem;
  background: color-mix(in srgb, var(--igs-elev) 94%, var(--igs-mist));
  color: var(--igs-ink);
  overflow: hidden;
}
.igs-nv-twin-col.is-a {
  border-color: color-mix(in srgb, var(--igs-accent-2) 40%, var(--igs-line));
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--igs-accent-2) 8%, var(--igs-elev)) 0%,
    color-mix(in srgb, var(--igs-paper) 85%, var(--igs-mist)) 100%
  );
}
.igs-nv-twin-col.is-b {
  border-color: color-mix(in srgb, var(--igs-accent) 40%, var(--igs-line));
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--igs-accent) 8%, var(--igs-elev)) 0%,
    color-mix(in srgb, var(--igs-paper) 85%, var(--igs-mist)) 100%
  );
}
.igs-nv-twin-col__hd {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.55rem;
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid rgba(40, 36, 30, 0.08);
  flex: 0 0 auto;
  position: sticky;
  top: 0;
  z-index: 2;
  backdrop-filter: blur(8px);
}
.igs-nv-twin-col__hd em {
  font-style: normal;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  color: #fff;
}
.igs-nv-twin-col__hd.is-a em,
.igs-nv-twin-col.is-a > .igs-nv-twin-col__hd em {
  background: var(--igs-accent-2);
  color: var(--igs-on-accent, #fff);
}
.igs-nv-twin-col__hd.is-b em,
.igs-nv-twin-col.is-b > .igs-nv-twin-col__hd em {
  background: var(--igs-accent);
  color: var(--igs-on-accent, #fff);
}
.igs-nv-twin-col__hd strong {
  font-family: "Noto Serif SC", serif;
  font-size: 0.92rem;
  color: var(--igs-ink);
  flex: 1 1 auto;
  min-width: 0;
}
.igs-nv-twin-col__hd span {
  font-size: 0.68rem;
  color: var(--igs-muted);
}
.igs-nv-twin-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 0.75rem 0.85rem 1.25rem;
  font-size: 0.98rem;
  line-height: 1.85;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.igs-nv-twin-solo {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}
.igs-nv-twin-solo .igs-nv-twin-col__hd {
  margin: 0 0 0.55rem;
  border: 1px solid var(--igs-line);
  border-radius: 0.55rem;
  background: color-mix(in srgb, var(--igs-elev) 92%, var(--igs-mist));
}
.igs-nv-twin-solo .igs-nv-twin-scroll {
  flex: 1 1 auto;
}
.igs-nv-twin-miss {
  margin: 0.5rem 0 0;
  padding: 0.45rem 0.6rem;
  border-radius: 0.45rem;
  background: rgba(196, 92, 40, 0.08);
  flex: 0 0 auto;
}
@media (max-width: 1100px) {
  .igs-nv-studio.is-ai-open .igs-nv-twin {
    /* AI 侧栏开时仍尽量左右分窗，列过窄时交给下方断点 */
    gap: 0.45rem;
  }
}
@media (max-width: 900px) {
  .igs-nv-twin {
    grid-template-columns: 1fr;
    overflow: auto;
    gap: 0.55rem;
  }
  .igs-nv-twin-col {
    min-height: 16rem;
    max-height: min(48vh, 28rem);
    height: auto;
  }
  .igs-nv-twin-bar__hint { display: none; }
}
.igs-nv-add-ch {
  margin-top: 0.85rem; border-top: 1px dashed rgba(0,0,0,0.08); padding-top: 0.65rem;
}
.igs-nv-add-ch > summary {
  cursor: pointer; font-size: 0.86rem; font-weight: 700; color: var(--igs-accent);
  list-style: none;
}
.igs-nv-add-ch > summary::-webkit-details-marker { display: none; }
.igs-nv-add-ch__form {
  display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.55rem;
}
.igs-nv-add-ch__form label {
  display: flex; flex-direction: column; gap: 0.25rem;
  font-size: 0.78rem; color: var(--igs-muted);
}
.igs-nv-add-ch__form input,
.igs-nv-add-ch__form textarea {
  width: 100%; box-sizing: border-box; border: 1px solid var(--igs-line);
  border-radius: 0.5rem; padding: 0.45rem 0.6rem; font: inherit;
  background: var(--igs-shell); color: #243028;
}
.igs-nv-add-ch__form textarea,
.igs-nv-add-ch__body {
  resize: vertical;
  min-height: 18rem;
  font-size: 0.95rem;
  line-height: 1.7;
  font-family: "Noto Serif SC", "Songti SC", serif;
}
.igs-nv-add-ch__actions {
  display: flex; justify-content: flex-end; gap: 0.4rem; flex-wrap: wrap;
}
.igs-nv-add-ch__drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.35rem; padding: 0.75rem 0.65rem; margin-top: 0.15rem;
  border: 1.5px dashed color-mix(in srgb, var(--igs-accent) 35%, transparent); border-radius: 0.65rem;
  background: color-mix(in srgb, var(--igs-accent) 4%, transparent); text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.igs-nv-add-ch__drop.is-drag {
  border-color: var(--igs-accent);
  background: color-mix(in srgb, var(--igs-accent) 10%, transparent);
}
.igs-nv-add-ch__drop > b { font-size: 0.86rem; color: var(--igs-accent); }
.igs-nv-add-ch__pick { font-size: 0.78rem; }
.igs-nv-add-ch__stats { margin: 0; font-size: 0.72rem; }
.igs-nv-add-ch__drop.is-busy {
  border-color: var(--igs-accent);
  background: color-mix(in srgb, var(--igs-accent) 8%, transparent);
  pointer-events: none;
}
.igs-nv-add-ch__busy {
  font-size: 0.82rem;
  color: var(--igs-accent);
  font-weight: 600;
}
.igs-nv-ch-panel__head .igs-nv-add-ch-quick {
  font-size: 0.78rem;
  padding: 0.28rem 0.55rem;
  flex-shrink: 0;
}
.igs-nv-reader-wrap.is-page-drag-ch {
  outline: 2px dashed color-mix(in srgb, var(--igs-accent) 45%, transparent);
  outline-offset: -4px;
  background: color-mix(in srgb, var(--igs-accent) 4%, transparent);
}
.igs-nv-add-ch__drop--hint {
  margin: 0.5rem 0 0;
}
.igs-nv-add-ch__drop--hint.is-compact {
  margin: 0.35rem 0 0;
  padding: 0.55rem 0.5rem;
}
.igs-nv-ch-empty .igs-nv-add-ch__drop--hint {
  max-width: 18rem;
  margin-left: auto;
  margin-right: auto;
}
.igs-nv-pick-empty .igs-nv-add-ch__drop--hint {
  max-width: 22rem;
  margin: 0.75rem auto 0;
}
.igs-nv-add-ch__draft-hint {
  margin: 0;
  font-size: 0.74rem;
}
.igs-nv-add-ch__draft-hint button {
  font-size: 0.74rem;
  padding: 0.1rem 0.35rem;
}
.igs-nv-ch-del {
  margin: -0.15rem 0 0.35rem 0.55rem;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  align-self: flex-start;
}
.igs-nv-test-quota { font-variant-numeric: tabular-nums; }
.igs-nv-ch-mine {
  color: var(--igs-accent); font-weight: 700;
}
.igs-nv-ch-card__heat {
  font-size: 0.72rem; color: var(--igs-accent-2); white-space: nowrap;
}
.igs-nv-ch-card__title {
  margin: 0; font-size: 0.95rem; font-family: "Noto Serif SC", serif;
  line-height: 1.35; color: var(--igs-ink);
}
.igs-nv-ch-card__meta {
  display: flex; flex-wrap: wrap; gap: 0.45rem 0.65rem;
  font-size: 0.72rem; color: var(--igs-muted);
}
.igs-nv-pick-empty { padding: 2.5rem 1rem; text-align: center; }
.igs-nv-pick-empty h2 { font-family: "Noto Serif SC", serif; }
.igs-nv-pick-actions {
  display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin-top: 1rem;
}

/* 小说配套概念设计 */
.igs-nv-concept {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  flex: 1 1 auto;
  min-height: 0;
  align-items: stretch;
}
body.igs-on-workspace .igs-nv-concept {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}
/* 挂图 Tab：概念壳交给挂图面板自己滚，避免整页假滚动条 */
body.igs-on-workspace .igs-nv-concept:has(.igs-hz-art) {
  overflow: hidden;
}
body.igs-on-workspace .igs-nv-concept:has(.igs-hz-art) > .igs-nv-concept-tabs {
  flex: 0 0 auto;
}
.igs-nv-concept-nav {
  min-height: 0;
  max-height: 78vh;
  overflow: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
body.igs-on-workspace .igs-nv-concept-nav {
  max-height: none;
}
.igs-nv-concept-nav__head h3 {
  margin: 0 0 0.25rem;
  font-family: "Noto Serif SC", serif;
  font-size: 1.05rem;
}
.igs-nv-concept-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.igs-nv-concept-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  text-align: left;
  width: 100%;
  border: 1px solid var(--igs-line);
  border-radius: 0.65rem;
  background: rgba(255, 253, 248, 0.92);
  padding: 0.65rem 0.75rem;
  cursor: pointer;
  font: inherit;
  color: inherit;
}
.igs-nv-concept-item:hover {
  border-color: color-mix(in srgb, var(--igs-accent) 40%, transparent);
}
.igs-nv-concept-item.is-active {
  border-color: var(--igs-accent);
  background: color-mix(in srgb, var(--igs-accent) 10%, transparent);
  box-shadow: inset 3px 0 0 var(--igs-accent);
}
.igs-nv-concept-item.is-miss { opacity: 0.5; cursor: not-allowed; }
.igs-nv-concept-item__title {
  display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center;
}
.igs-nv-concept-item__title b { font-size: 0.9rem; }
.igs-nv-concept-item__when {
  font-size: 0.75rem; color: var(--igs-muted); line-height: 1.35;
}
.igs-nv-concept-reader {
  min-height: 0;
  max-height: 78vh;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  background: linear-gradient(180deg, #fffdf8 0%, #f7f1e4 100%);
  border: 1px solid var(--igs-line);
  border-radius: 0.85rem;
  padding: 1.15rem 1.35rem;
}
body.igs-on-workspace .igs-nv-concept-reader {
  max-height: none;
}
.igs-md-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0.75rem 0 1rem;
  border-radius: 0.55rem;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: #fff;
}
.igs-nv-concept-reader .igs-md {
  font-size: calc(0.98rem * var(--igs-std-fs, 1));
  line-height: 1.75;
}
.igs-ws-write-pipe--concept {
  border-color: color-mix(in srgb, var(--igs-accent) 35%, transparent);
  background: linear-gradient(135deg, #f3faf6 0%, #fff9f0 100%);
}
.igs-ws-msg.is-concept-draft {
  outline: 1px solid color-mix(in srgb, var(--igs-accent) 35%, transparent);
}
.igs-ws-msg__cand-acts--concept {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.45rem;
}

.igs-nv-concept-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 0.75rem;
}

/* 概念包 · 简约：地图 + 摘要 + 版本 pill · 禁止常驻堆砌 */
.igs-nv-concept-flow.is-lean {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.75rem;
  margin: 0 0 0.65rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid #e2d8c8;
  border-radius: 0.65rem;
  background: var(--igs-shell);
  box-shadow: none;
}
.igs-nv-concept-flow.is-fold {
  display: block;
  margin: 0 0 0.65rem;
  padding: 0;
  border: 1px solid #e2d8c8;
  border-radius: 0.65rem;
  background: var(--igs-shell);
  box-shadow: none;
}
.igs-nv-concept-flow.is-fold > summary {
  cursor: pointer;
  list-style: none;
  padding: 0.5rem 0.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
}
.igs-nv-concept-flow.is-fold > summary::-webkit-details-marker { display: none; }
.igs-nv-concept-flow.is-fold > summary strong { font-size: 0.88rem; color: #1f3d34; }
.igs-nv-concept-flow__body {
  padding: 0 0.75rem 0.7rem;
  border-top: 1px dashed #e5dccf;
}
.igs-nv-concept-flow__body .igs-muted-sm { margin: 0.45rem 0 0.55rem; }
.igs-nv-concept-official.is-lean { display: flex; flex-direction: column; gap: 0.65rem; min-height: 0; }
.igs-nv-concept-map {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid #e2d8c8;
  border-radius: 0.75rem;
  background: linear-gradient(180deg, #fffaf2, #f7f3ea);
}
.igs-nv-concept-map__row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem; }
.igs-nv-concept-map__lab {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: #7a6f62;
  text-transform: none;
  min-width: 2.2rem;
}
.igs-nv-concept-map__chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.igs-nv-concept-map__chip {
  border: 1px solid #d4c8b4;
  background: #fff;
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
  color: #3a3228;
}
.igs-nv-concept-map__chip b { font-weight: 650; }
.igs-nv-concept-map__chip em {
  font-style: normal;
  margin-left: 0.3rem;
  font-size: 0.68rem;
  color: var(--igs-accent);
}
.igs-nv-concept-map__chip.is-on {
  border-color: var(--igs-accent);
  background: var(--igs-accent);
  color: #fff;
}
.igs-nv-concept-map__chip.is-on em { color: rgba(255,255,255,0.85); }
.igs-nv-concept-map__chip.is-miss { opacity: 0.45; cursor: not-allowed; }
.igs-nv-concept-map__more { margin: 0; }
.igs-nv-concept-map__more > summary {
  cursor: pointer;
  font-size: 0.76rem;
  color: #6a6258;
  list-style: none;
  padding: 0.15rem 0;
}
.igs-nv-concept-map__more > summary::-webkit-details-marker { display: none; }
.igs-nv-concept-nav-more {
  margin: 0.25rem 0 0.45rem;
  padding: 0 0.15rem;
}
.igs-nv-concept-nav-more > summary {
  cursor: pointer;
  font-size: 0.76rem;
  color: #6a6258;
  list-style: none;
}
.igs-nv-concept-nav-more > summary::-webkit-details-marker { display: none; }
.igs-nv-concept-reader-hero {
  margin-bottom: 0.55rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid #ebe3d6;
}
.igs-nv-concept-reader-hero__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.55rem 0.85rem;
  align-items: flex-start;
}
.igs-nv-concept-reader-hero h2 { margin: 0 0 0.2rem; font-size: 1.15rem; }
.igs-nv-concept-reader-hero .path { margin: 0; font-size: 0.78rem; color: #7a6f62; }
.igs-nv-concept-reader-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}
.igs-nv-concept-hero-ver {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.igs-nv-concept-hero-ver__pill {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  border: 1px solid #d4c8b4;
  background: #fff;
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  font: inherit;
  cursor: pointer;
  color: #3a3228;
}
.igs-nv-concept-hero-ver__pill strong { font-size: 0.85rem; color: var(--igs-accent); }
.igs-nv-concept-hero-ver__pill span { font-size: 0.72rem; color: #7a6f62; }
.igs-nv-concept-brief {
  margin: 0.55rem 0 0;
  padding: 0.55rem 0.7rem;
  border-left: 3px solid var(--igs-accent);
  background: #f4f8f6;
  border-radius: 0 0.45rem 0.45rem 0;
  font-size: 0.84rem;
  line-height: 1.5;
  color: #3a463f;
}
.igs-nv-concept-body-fold { margin: 0; }
.igs-nv-concept-body-fold > summary {
  cursor: pointer;
  list-style: none;
  font-size: 0.8rem;
  color: #6a6258;
  margin-bottom: 0.35rem;
}
.igs-nv-concept-body-fold > summary::-webkit-details-marker { display: none; }
.igs-nv-concept-actions.is-lean { gap: 0.4rem; align-items: center; }
.igs-nv-concept-more .igs-nv-chrome__menu { min-width: 10rem; }

.igs-nv-concept-flow {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr) auto;
  gap: 0.75rem 1rem;
  align-items: center;
  margin: 0 0 0.85rem;
  padding: 0.75rem 0.95rem;
  border: 1px solid #d8cfc0;
  border-radius: 0.85rem;
  background: linear-gradient(135deg, #fff9f0 0%, #f3f7f4 55%, #eef6f2 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset;
}
.igs-nv-concept-flow__copy strong {
  display: block;
  font-size: 0.95rem;
  color: #1f3d34;
  margin-bottom: 0.2rem;
}
.igs-nv-concept-flow__copy p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.45;
  color: #5a5248;
}
.igs-nv-concept-flow__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.igs-nv-concept-flow__steps li {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  border: 1px solid #d4c8b4;
  background: #fff;
  color: #6a6258;
  font-size: 0.72rem;
}
.igs-nv-concept-flow__steps li em {
  font-style: normal;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: #ebe4d8;
  color: #4a433a;
  font-size: 0.68rem;
}
.igs-nv-concept-flow__steps li.is-done {
  border-color: #9cb8ae;
  color: #2f5c4e;
  background: #eef6f2;
}
.igs-nv-concept-flow__steps li.is-on {
  border-color: var(--igs-accent);
  background: var(--igs-accent);
  color: #fff;
  font-weight: 600;
}
.igs-nv-concept-flow__steps li.is-on em {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}
.igs-nv-concept-flow__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: flex-end;
}
@media (max-width: 980px) {
  .igs-nv-concept-flow {
    grid-template-columns: 1fr;
  }
  .igs-nv-concept-flow__acts {
    justify-content: flex-start;
  }
}
.igs-nv-concept-tab {
  border: 1px solid #d4c8b4;
  background: #fff;
  color: #3a3228;
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}
.igs-nv-concept-tab.on {
  border-color: var(--igs-accent);
  background: var(--igs-accent);
  color: #fff;
}
.igs-nv-concept-split,
.igs-nv-concept-mine-board {
  display: grid;
  grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
  gap: 0.85rem;
  min-height: 0;
}
@media (max-width: 900px) {
  .igs-nv-concept-split,
  .igs-nv-concept-mine-board { grid-template-columns: 1fr; }
}
.igs-nv-concept-mine {
  border: 1px solid var(--igs-line);
  border-radius: 0.85rem;
  background: var(--igs-shell);
  padding: 0.9rem 1rem 1.1rem;
}
.igs-nv-concept-mine__head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.65rem;
}
.igs-nv-concept-mine__head h3 { margin: 0 0 0.25rem; font-size: 1.05rem; }
.igs-nv-concept-draft {
  width: 100%;
  min-height: min(42vh, 22rem);
  resize: vertical;
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.55;
  padding: 0.75rem 0.85rem;
  border: 1px solid #d4c8b4;
  border-radius: 0.55rem;
  background: #fffcf6;
  box-sizing: border-box;
}
.igs-nv-concept-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.65rem 0;
}
.igs-nv-concept-busy {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin: 0.55rem 0 0.35rem;
  padding: 0.65rem 0.85rem;
  border-radius: 0.7rem;
  border: 1px solid rgba(196, 120, 40, 0.35);
  background: linear-gradient(180deg, #fff8eb, #fff3dc);
  color: #5a3a12;
  font-size: 0.82rem;
  line-height: 1.4;
}
.igs-nv-concept-busy strong {
  font-size: 0.9rem;
  color: #8a4b12;
}
.igs-nv-concept-busy em {
  font-style: normal;
  opacity: 0.85;
  font-size: 0.76rem;
}
.igs-nv-concept-actions .igs-btn.is-busy,
.igs-nv-concept-actions .igs-btn:disabled {
  opacity: 0.72;
  cursor: wait;
}
.igs-nv-concept-instr,
.igs-nv-concept-author {
  display: block;
  margin: 0.5rem 0;
  font-size: 0.82rem;
  color: #3a3228;
}
.igs-nv-concept-instr input,
.igs-nv-concept-author input {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid #d4c8b4;
  border-radius: 0.4rem;
  font: inherit;
  box-sizing: border-box;
}
.igs-nv-concept-cand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 0.45rem;
  padding: 0.45rem 0.5rem;
  cursor: pointer;
  font: inherit;
  margin-bottom: 0.25rem;
}
.igs-nv-concept-cand:hover { background: color-mix(in srgb, var(--igs-accent) 6%, transparent); }
.igs-nv-concept-cand.on {
  border-color: color-mix(in srgb, var(--igs-accent) 35%, transparent);
  background: color-mix(in srgb, var(--igs-accent) 10%, transparent);
}
.igs-nv-concept-cand b { font-size: 0.84rem; }
.igs-nv-concept-cand span { font-size: 0.72rem; color: var(--igs-muted); }
.igs-nv-concept-focus header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  align-items: baseline;
  margin-bottom: 0.35rem;
}
.igs-nv-concept-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
@media (max-width: 900px) {
  .igs-nv-concept-compare { grid-template-columns: 1fr; }
}
.igs-nv-concept-compare h4 { margin: 0 0 0.35rem; font-size: 0.88rem; }
.igs-nv-concept-md {
  font-size: calc(0.95rem * var(--igs-std-fs, 1));
  line-height: 1.7;
}
@media (max-width: 900px) {
  .igs-nv-concept { grid-template-columns: 1fr; }
  .igs-nv-mobile-concept .igs-nv-concept-nav { max-height: 40vh; }
  .igs-nv-mobile-concept .igs-nv-concept-reader { max-height: 55vh; }
}
.igs-nv-ch-nav {
  display: flex; flex-wrap: wrap; gap: 0.45rem; justify-content: space-between;
  align-items: center; margin: 0.5rem 0 1.25rem; padding-top: 0.85rem;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.igs-nv-ch-nav button { flex: 1 1 8rem; min-width: 0; }
.igs-nv-ch-nav button:disabled { opacity: 0.45; cursor: not-allowed; }
.igs-nv-comments {
  margin-top: 0.5rem; padding-top: 1rem;
  border-top: 1px dashed color-mix(in srgb, var(--igs-accent) 28%, transparent);
  flex: 0 0 auto;
}
.igs-nv-comments__head {
  display: flex; flex-wrap: wrap; gap: 0.35rem 0.75rem;
  justify-content: space-between; align-items: center; margin-bottom: 0.75rem;
}
.igs-nv-comments__toggle {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  width: 100%; border: 1px solid color-mix(in srgb, var(--igs-accent) 22%, transparent); border-radius: 0.65rem;
  background: rgba(255,253,248,0.92); padding: 0.55rem 0.75rem; cursor: pointer;
  font: inherit; color: inherit; text-align: left;
}
.igs-nv-comments__toggle:hover {
  border-color: color-mix(in srgb, var(--igs-accent) 45%, transparent);
  background: #fff;
}
.igs-nv-comments__chev {
  font-style: normal; font-size: 0.78rem; font-weight: 700; color: var(--igs-accent);
  flex-shrink: 0;
}
.igs-nv-comments.is-collapsed {
  margin-top: 0.35rem; padding-top: 0.55rem;
}
.igs-nv-comments.is-collapsed .igs-nv-comments__head {
  margin-bottom: 0;
}
.igs-nv-comments.is-collapsed .igs-nv-comments__body {
  display: none !important;
}
.igs-nv-comments.is-collapsed .igs-nv-comments__toggle {
  background: linear-gradient(180deg, color-mix(in srgb, var(--igs-accent) 6%, transparent), rgba(255,253,248,0.95));
}
.igs-nv-comments__head h3 {
  margin: 0; font-size: 1.05rem; font-family: "Noto Serif SC", serif;
}
.igs-nv-comments__head h3 span {
  font-size: 0.85rem; color: var(--igs-accent); font-weight: 700; margin-left: 0.25rem;
}
.igs-nv-cmt-empty {
  margin: 0 0 0.85rem; padding: 0.85rem; border-radius: 0.55rem;
  background: color-mix(in srgb, var(--igs-accent) 6%, transparent); color: var(--igs-muted); font-size: 0.88rem;
}
.igs-nv-cmt-list {
  list-style: none; margin: 0 0 1rem; padding: 0;
  display: flex; flex-direction: column; gap: 0.65rem;
}
.igs-nv-cmt-item {
  border: 1px solid var(--igs-line); border-radius: 0.6rem;
  background: rgba(255,255,255,0.72); padding: 0.65rem 0.8rem;
}
.igs-nv-cmt-item header {
  display: flex; justify-content: space-between; gap: 0.5rem;
  margin-bottom: 0.3rem; font-size: 0.78rem;
}
.igs-nv-cmt-item header b { color: var(--igs-accent); }
.igs-nv-cmt-item header time { color: var(--igs-muted); }
.igs-nv-cmt-item p {
  margin: 0; font-size: 0.92rem; line-height: 1.55; white-space: pre-wrap; color: #243028;
}
.igs-nv-cmt-form {
  display: flex; flex-direction: column; gap: 0.55rem;
  position: sticky; bottom: 0; padding: 0.75rem 0 0.15rem;
  background: linear-gradient(180deg, rgba(247,241,228,0) 0%, #f7f1e4 28%);
}
.igs-nv-cmt-form__author {
  display: flex; flex-direction: column; gap: 0.25rem;
  font-size: 0.78rem; color: var(--igs-muted);
}
.igs-nv-cmt-form input,
.igs-nv-cmt-form textarea {
  width: 100%; box-sizing: border-box; border: 1px solid var(--igs-line);
  border-radius: 0.5rem; padding: 0.5rem 0.65rem; font: inherit;
  background: var(--igs-shell); color: #243028;
}
.igs-nv-cmt-form textarea { resize: vertical; min-height: 4.5rem; }
.igs-nv-cmt-form__actions { display: flex; justify-content: flex-end; }

/* —— 关系图 —— */
.igs-rel-page {
  display: grid; grid-template-columns: 220px 1fr; gap: 0.75rem; align-items: start;
}
@media (max-width: 1100px) { .igs-rel-page { grid-template-columns: 1fr; } }
.igs-rel-nav { max-height: min(78vh, 720px); overflow: auto; position: sticky; top: 0.5rem; }
.igs-rel-nav h3 { margin: 0 0 0.35rem; font-size: 0.95rem; }
.igs-rel-nav .tip { font-size: 0.72rem; color: var(--igs-muted); margin: 0 0 0.65rem; line-height: 1.45; }
.igs-rel-nav-group { margin-bottom: 0.75rem; }
.igs-rel-nav-group .g-title {
  font-size: 0.72rem; font-weight: 700; color: var(--igs-muted);
  letter-spacing: 0.04em; margin-bottom: 0.3rem; text-transform: uppercase;
}
.igs-rel-nav-item {
  display: block; width: 100%; text-align: left; border: 1px solid transparent;
  background: transparent; border-radius: 0.5rem; padding: 0.45rem 0.5rem;
  cursor: pointer; font: inherit; margin-bottom: 0.2rem;
}
.igs-rel-nav-item:hover { background: rgba(47,107,90,0.07); }
.igs-rel-nav-item.active {
  background: rgba(196,92,40,0.08); border-color: rgba(196,92,40,0.35);
}
.igs-rel-nav-item b { display: block; font-size: 0.84rem; }
.igs-rel-nav-item small { color: var(--igs-muted); font-size: 0.7rem; }
.igs-rel-head {
  display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: space-between;
  align-items: flex-start; margin-bottom: 0.55rem;
}
.igs-rel-shell { display: grid; grid-template-columns: 1fr 300px; gap: 0.85rem; }
@media (max-width: 980px) { .igs-rel-shell { grid-template-columns: 1fr; } }
.igs-node.dim { opacity: 0.38; filter: grayscale(0.2); }
.igs-rel-toolbar {
  display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin-bottom: 0.55rem;
}
.igs-rel-toolbar .mode-btn.active {
  background: var(--igs-accent); color: #fff; border-color: var(--igs-accent);
}
.igs-rel-canvas {
  position: relative; height: min(72vh, 640px); border: 1px solid var(--igs-line);
  border-radius: 0.85rem; background: #efe9dc;
  overflow: auto; touch-action: none;
  cursor: grab;
  overscroll-behavior: contain;
}
.igs-rel-canvas.is-pan-ready,
.igs-rel-canvas.is-panning {
  cursor: grabbing;
}
.igs-rel-canvas.is-panning {
  user-select: none;
}
.igs-rel-zoom-space {
  position: relative;
  min-width: 100%;
  min-height: 100%;
}
.igs-rel-board-empty {
  position: absolute;
  left: 50%;
  top: 40%;
  transform: translate(-50%, -50%);
  z-index: 3;
  max-width: 26rem;
  padding: 1rem 1.15rem;
  border-radius: 0.65rem;
  background: rgba(255, 252, 245, 0.96);
  border: 1px dashed #c5a882;
  box-shadow: 0 10px 28px rgba(40, 30, 20, 0.08);
  text-align: left;
}
.igs-rel-board-empty b {
  display: block;
  font-size: 0.95rem;
  color: #16352c;
  margin-bottom: 0.35rem;
}
.igs-rel-board-empty p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--igs-muted);
}
.igs-rel-empty {
  max-width: 36rem;
  margin: 1.5rem auto;
  padding: 1.25rem;
}
.igs-rel-empty h3 { margin-top: 0; }
.igs-rel-zoom-tools {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.1rem 0.25rem;
  border-radius: 0.45rem;
  background: rgba(255,255,255,0.65);
  border: 1px solid var(--igs-line);
}
.igs-rel-zoom-tools b {
  min-width: 2.6rem;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--igs-accent);
}
.igs-rel-zoom-tools .igs-btn-ghost {
  min-width: 1.7rem;
  padding: 0.15rem 0.35rem;
}
.igs-rel-board {
  position: relative;
  width: 1600px;
  height: 1000px;
  min-width: 1600px;
  min-height: 1000px;
  will-change: transform;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(196,92,40,0.07), transparent 45%),
    radial-gradient(ellipse at 80% 80%, rgba(47,107,90,0.08), transparent 40%),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px) 0 0 / 40px 40px,
    #f8f4eb;
}
.igs-rel-svg {
  position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1;
  pointer-events: none; /* 空白穿透，方便拖动画布 */
}
.igs-rel-svg .edge-hit {
  pointer-events: auto;
  cursor: pointer;
}
.igs-rel-svg .edge-path { pointer-events: stroke; cursor: pointer; }
.igs-node {
  position: absolute; min-width: 108px; max-width: 140px; padding: 0.55rem 0.7rem; text-align: center;
  background: linear-gradient(180deg, #fffef9, #f5efe3); border: 2px solid #2f6b5a;
  border-radius: 0.85rem; cursor: grab; font-size: 0.84rem; font-weight: 700; user-select: none; z-index: 2;
  box-shadow: 0 10px 24px rgba(31, 42, 36, 0.08);
  /* 勿对 left/top 做 transition，否则拖拽发飘/像拖不动 */
  transition: box-shadow 0.15s;
}
.igs-node small { display: block; font-weight: 500; color: var(--igs-muted); font-size: 0.68rem; margin-top: 0.15rem; }
.igs-node .role { display: block; font-weight: 500; font-size: 0.7rem; color: #5c5348; margin-top: 0.2rem; line-height: 1.3; }
.igs-node.lead { border-color: #c45c28; background: linear-gradient(180deg, #fff8f2, #f8ebe0); }
.igs-node.support { border-color: #8a7a62; }
.igs-node.selected { box-shadow: 0 0 0 3px rgba(196,92,40,0.4); transform: translateY(-1px); }
.igs-node.link-from { box-shadow: 0 0 0 3px rgba(47,107,90,0.45); }
.igs-node.dragging { cursor: grabbing; opacity: 0.95; z-index: 5; }
.igs-edge-legend { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.4rem 0 0.6rem; }
.igs-edge-legend span {
  font-size: 0.7rem; padding: 0.15rem 0.4rem; border-radius: 999px; border: 1px solid currentColor; opacity: 0.9;
}
.igs-edge-item {
  margin: 0.4rem 0; padding: 0.5rem 0.55rem; border-radius: 0.5rem; border: 1px solid var(--igs-line);
  background: #fff; cursor: pointer;
}
.igs-edge-item.active { border-color: var(--igs-accent); background: rgba(196,92,40,0.06); }
.igs-edge-item .swatch { display: inline-block; width: 0.55rem; height: 0.55rem; border-radius: 50%; margin-right: 0.3rem; }
.igs-form label { display: block; font-size: 0.8rem; color: var(--igs-muted); margin-top: 0.4rem; }
.igs-form input, .igs-form select, .igs-form textarea {
  width: 100%; border: 1px solid var(--igs-line); border-radius: 0.4rem;
  padding: 0.4rem 0.5rem; margin-top: 0.2rem; background: #fff;
}
.igs-asset-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
.igs-asset-slot { border: 1px dashed var(--igs-line); border-radius: 0.5rem; padding: 0.45rem; text-align: center; }
.igs-asset-slot img { width: 100%; aspect-ratio: 2/3; object-fit: cover; border-radius: 0.35rem; background: var(--igs-mist); }

/* —— 复制坞（加高 · 视频词易点） —— */
.igs-dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; justify-content: space-between; align-items: stretch;
  min-height: var(--igs-dock-h);
  padding: 0.75rem 1.25rem 0.85rem;
  background: rgba(20, 32, 28, 0.96);
  color: #f4f0e6;
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 -8px 28px rgba(0,0,0,0.18);
}
.igs-dock--tall {
  align-items: flex-start;
}
.igs-dock[hidden] { display: none !important; }
.igs-dock-meta {
  min-width: 0;
  flex: 1 1 280px;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  max-width: min(52vw, 560px);
}
.igs-dock-meta-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.55rem;
}
.igs-dock-meta strong { font-family: var(--igs-serif); font-size: 1.05rem; }
.igs-dock-hint { display: block; font-size: 0.72rem; opacity: 0.72; }
.igs-dock-hint.warn { color: #ffb48a; opacity: 1; }
.igs-dock-video-preview {
  margin: 0.15rem 0 0;
  padding: 0.35rem 0.5rem;
  border-radius: 0.4rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
  line-height: 1.35;
  max-height: 2.7em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  opacity: 0.92;
  cursor: default;
  white-space: normal;
  word-break: break-word;
}
.igs-dock-video-preview.empty { opacity: 0.55; font-style: italic; }
.igs-dock-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.55rem;
  flex: 1 1 320px;
  justify-content: flex-end;
}
.igs-dock-nav,
.igs-dock-copy-row,
.igs-dock-extra {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}
.igs-dock .igs-btn, .igs-dock .igs-btn-ghost {
  background: #2a8a70; border-color: transparent;
  min-height: 2.35rem;
  padding: 0.45rem 0.75rem;
  font-size: 0.88rem;
}
.igs-dock .igs-btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,0.35); color: #fff; }
.igs-dock-video-btn {
  background: #c45c28 !important;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(196, 92, 40, 0.35);
}
.igs-dock-video-btn:hover {
  filter: brightness(1.08);
}
.igs-dock-screen-btn {
  background: #1d4f91 !important;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(29, 79, 145, 0.35);
}
.igs-dock-screen-btn:hover {
  filter: brightness(1.08);
}
.igs-dock-screen-btn.is-over {
  background: #c62828 !important;
  box-shadow: 0 2px 12px rgba(198, 40, 40, 0.45);
}
@media (max-width: 900px) {
  :root {
    --igs-dock-h: 9.5rem;
    --igs-dock-safe: calc(var(--igs-dock-h) + 2.5rem);
  }
  .igs-dock-meta { max-width: none; }
  .igs-dock-actions { justify-content: flex-start; }
}

/* —— 搜索弹出 —— */
.igs-search-pop {
  position: fixed; top: 4.2rem; right: 1.25rem; width: min(420px, 92vw);
  max-height: 60vh; overflow: auto; z-index: 45;
  background: #fffcf5; border: 1px solid var(--igs-line); border-radius: 0.75rem;
  box-shadow: 0 16px 40px rgba(0,0,0,0.12); padding: 0.5rem;
}
.igs-search-pop[hidden] { display: none !important; }
.igs-search-item {
  display: block; width: 100%; text-align: left; border: 0; background: transparent;
  padding: 0.55rem 0.65rem; border-radius: 0.45rem; cursor: pointer; font-size: 0.85rem;
}
.igs-search-item:hover { background: #eef7f3; }
.igs-search-item small { display: block; color: var(--igs-muted); margin-top: 0.15rem; }

.igs-toast {
  position: fixed; bottom: calc(var(--igs-dock-h) + 1rem); left: 50%; transform: translateX(-50%);
  background: var(--igs-ink); color: #fff; padding: 0.7rem 1.15rem; border-radius: 0.55rem; z-index: 50;
  font-weight: 600; box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}