/* 右侧 PRD 阅读面板 */
.prd-reader-shell {
  --prd-panel-width: 380px;
  --prd-panel-offset: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  width: 100%;
  min-height: 100vh;
  box-sizing: border-box;
  background: #eef2f0;
}

.prd-prototype-area {
  position: relative;
  min-width: 0;
  overflow: auto;
}

.prd-panel-toggle {
  position: fixed !important;
  top: 16px !important;
  right: var(--prd-panel-offset, 20px) !important;
  left: auto !important;
  bottom: auto !important;
  z-index: 9999 !important;
  width: auto;
  min-width: 72px;
  height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #9fd0b8 !important;
  background: #ffffff !important;
  color: #147a5a !important;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
  cursor: pointer;
  pointer-events: auto;
}

.prd-panel-toggle[aria-pressed="true"] {
  background: #2f7cff !important;
  border-color: #2f7cff !important;
  color: #fff !important;
}

.prd-markers-toggle {
  position: fixed !important;
  top: 16px !important;
  right: calc(var(--prd-panel-offset, 20px) + 84px) !important;
  left: auto !important;
  bottom: auto !important;
  z-index: 9999 !important;
  width: auto;
  min-width: 72px;
  height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #9fd0b8 !important;
  background: #ffffff !important;
  color: #147a5a !important;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
  cursor: pointer;
  pointer-events: auto;
}

.prd-markers-toggle[aria-pressed="true"] {
  background: #6b7280 !important;
  border-color: #6b7280 !important;
  color: #fff !important;
}

body.req-markers-hidden .req-marker,
body.req-markers-hidden .req-marker-input {
  display: none !important;
}

.prd-side-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
  background: #fbfdfc;
  border-left: 1px solid #d7e8de;
  box-shadow: -8px 0 24px rgba(20, 50, 36, 0.06);
  overflow: hidden;
}

.prd-side-panel[hidden] {
  display: none !important;
}

.prd-panel-resizer {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  cursor: ew-resize;
  z-index: 2;
}

.prd-panel-resizer:hover {
  background: rgba(47, 124, 255, 0.18);
}

.prd-panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 14px 10px;
  border-bottom: 1px solid #e5efe9;
  background: linear-gradient(180deg, #eef8f2 0%, #fbfdfc 100%);
}

.prd-panel-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
  color: #1f3d2e;
}

.prd-panel-sub {
  margin-top: 4px;
  font-size: 12px;
  color: #6f8b7d;
}

.prd-panel-close {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #6b8576;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.prd-panel-toolbar {
  padding: 10px 14px;
  border-bottom: 1px solid #e5efe9;
}

.prd-panel-toolbar label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 700;
  color: #5f7f74;
}

.prd-panel-toolbar select {
  width: 100%;
  height: 34px;
  border: 1px solid #cfe0d6;
  border-radius: 8px;
  padding: 0 10px;
  background: #fff;
  color: #1f3d2e;
  font-size: 13px;
}

.prd-panel-body {
  display: grid;
  grid-template-rows: minmax(0, 42%) minmax(0, 58%);
  min-height: 0;
  flex: 1;
}

.prd-req-list {
  overflow: auto;
  padding: 8px;
  border-bottom: 1px solid #e5efe9;
}

.prd-req-card {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  text-align: left;
  padding: 10px;
  margin-bottom: 6px;
  border: 1px solid #e5efe9;
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

.prd-req-card:hover {
  border-color: #b7d2c3;
}

.prd-req-card.is-active {
  border-color: #2f7cff;
  background: #f3f8ff;
  box-shadow: 0 0 0 1px rgba(47, 124, 255, 0.2);
}

.prd-req-no {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #2f7cff;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.prd-req-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.prd-req-id {
  font-size: 11px;
  font-weight: 700;
  color: #2f7cff;
}

.prd-req-title {
  font-size: 13px;
  font-weight: 700;
  color: #1f3d2e;
  line-height: 1.35;
}

.prd-detail {
  overflow: auto;
  padding: 12px 14px 20px;
}

.prd-detail-placeholder,
.prd-detail-empty {
  color: #8a9a90;
  font-size: 13px;
  line-height: 1.6;
}

.prd-detail-id {
  font-size: 11px;
  font-weight: 700;
  color: #2f7cff;
}

.prd-detail-title {
  margin-top: 4px;
  font-size: 16px;
  font-weight: 800;
  color: #1f3d2e;
}

.prd-detail-meta {
  margin-top: 6px;
  font-size: 12px;
  color: #6f8b7d;
}

.prd-logic-section {
  margin-top: 14px;
}

.prd-logic-section h4 {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 800;
  color: #1f6b58;
}

.prd-logic-section ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.prd-logic-section li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 13px;
  line-height: 1.55;
  color: #33483d;
}

.prd-item-no {
  color: #6f9b84;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.req-review-tag {
  color: #e67e22;
  font-weight: 700;
}

.req-anchor-highlight {
  outline: 2px solid #2f7cff !important;
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(47, 124, 255, 0.18);
  border-radius: 6px;
}