:root {
  --bg: #f3f3f3;
  --ink: #333333;
  --muted: #666666;
  --line: #d9d9d9;
  --panel: #ffffff;
  --accent: #990000;
  --accent-dark: #790000;
  --switch-on: #208a4a;
  --switch-off: #990000;
  --rail: #555555;
  --focus: #990000;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: "Gill Sans Nova", "Gill Sans", "Noto Sans SC", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: 28px;
}

.workspace {
  max-width: 1220px;
  margin: 0 auto;
}

.brand-strip {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 5px solid var(--accent);
}

.brand-strip strong {
  color: var(--accent);
  font-size: 42px;
  line-height: 0.95;
  letter-spacing: 0;
}

.brand-strip span {
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.topbar {
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 34px;
  line-height: 1.15;
  font-weight: 700;
}

h2 {
  font-size: 18px;
}

.carrier-two-section.is-disabled .carrier-title {
  color: #9a9a9a;
}

.model-card,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.model-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 12px;
  align-items: center;
  padding: 16px;
  border-radius: 8px;
}

.model-card strong {
  grid-column: 1 / 2;
  font-family: "Gill Sans Nova", "Gill Sans", "Noto Sans SC", sans-serif;
  font-size: 23px;
  line-height: 1.2;
  color: var(--accent);
  overflow-wrap: anywhere;
  white-space: pre-line;
}

.model-card strong.is-error {
  color: var(--accent);
}

.icon-button {
  position: relative;
  grid-column: 2 / 3;
  display: grid;
  place-items: center;
  min-width: 46px;
  min-height: 44px;
  border: 0;
  border-radius: 4px;
  color: white;
  background: var(--accent);
  cursor: pointer;
}

.icon-button:hover {
  background: var(--accent-dark);
}

.icon-button::before,
.icon-button::after {
  content: "";
  position: absolute;
  width: 13px;
  height: 13px;
  border: 2px solid #ffffff;
  border-radius: 2px;
}

.icon-button::before {
  transform: translate(-3px, 3px);
}

.icon-button::after {
  transform: translate(3px, -3px);
  background: var(--accent);
}

.tool-grid {
  display: grid;
  grid-template-columns: minmax(320px, 430px) 1fr;
  gap: 18px;
}

.config-column {
  display: grid;
  gap: 18px;
  align-content: start;
}

.panel {
  border-radius: 4px;
}

.controls {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.control-section {
  display: grid;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.control-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.section-title {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
}

.field {
  display: grid;
  gap: 7px;
}

.inline-field {
  grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 12px;
}

.field > span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid #cfcfcf;
  border-radius: 4px;
  color: var(--ink);
  background: #ffffff;
  padding: 0 12px;
  font-size: 15px;
  font-weight: 500;
}

input::placeholder {
  color: var(--muted);
  opacity: 1;
  font-weight: 500;
}

select.is-placeholder {
  color: var(--muted);
  font-weight: 500;
}

input:focus,
select:focus,
button:focus-visible,
.choice-current:focus-visible {
  outline: 3px solid rgba(153, 0, 0, 0.18);
  border-color: var(--focus);
}

input:disabled {
  color: #78838f;
  background: #eeeeee;
}

input[aria-invalid="true"] {
  border-color: #b85b00;
  background: #fff8ef;
}

.native-select {
  display: none;
}

.inline-input {
  position: relative;
}

.inline-input input {
  padding-right: 52px;
}

.inline-input em {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-style: normal;
  font-size: 13px;
}

.field-error {
  min-height: 18px;
  color: #b85b00;
  font-size: 13px;
  font-weight: 700;
}

.field-error:empty {
  display: none;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.carrier-options {
  display: grid;
  gap: 12px;
}

.robot-picker,
.choice-picker {
  position: relative;
}

.robot-picker-current,
.choice-current {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  min-height: 42px;
  border: 1px solid #cfcfcf;
  border-radius: 4px;
  color: var(--ink);
  background: #ffffff;
  padding: 0 12px;
  cursor: pointer;
  text-align: left;
  font-size: 15px;
  font-weight: 500;
}

.choice-current {
  appearance: none;
}

.robot-picker-current span,
.choice-current {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.robot-picker-current span.is-placeholder,
.choice-current.is-placeholder {
  color: var(--muted);
  font-weight: 500;
}

.choice-current.is-invalid {
  color: #ffffff;
  border-color: var(--switch-off);
  background: var(--switch-off);
}

.robot-picker-current b,
.choice-current::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg) translateY(-2px);
}

.choice-current.is-invalid::after {
  border-color: #ffffff;
}

.robot-picker-current[aria-expanded="true"] b,
.choice-current[aria-expanded="true"]::after {
  transform: rotate(225deg) translate(-2px, -1px);
}

.robot-picker-panel,
.choice-panel {
  position: absolute;
  z-index: 10;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 340px;
  overflow: auto;
  border: 1px solid #cfcfcf;
  border-radius: 4px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.14);
  padding: 8px;
}

.choice-panel {
  display: grid;
  gap: 2px;
  max-height: 260px;
}

.robot-brand,
.robot-series {
  border-bottom: 1px solid #eeeeee;
}

.robot-brand:last-child,
.robot-series:last-child {
  border-bottom: 0;
}

.robot-brand > summary,
.robot-series > summary {
  cursor: pointer;
  list-style: none;
  min-height: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

.robot-brand > summary::-webkit-details-marker,
.robot-series > summary::-webkit-details-marker {
  display: none;
}

.robot-brand > summary::before,
.robot-series > summary::before {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(-45deg);
}

.robot-brand[open] > summary::before,
.robot-series[open] > summary::before {
  transform: rotate(45deg) translateY(-2px);
}

.robot-series {
  margin-left: 14px;
}

.robot-series > summary {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.robot-model-list {
  display: grid;
  gap: 2px;
  margin: 0 0 8px 18px;
}

.robot-model-list button,
.choice-option {
  min-height: 30px;
  border: 0;
  border-radius: 4px;
  color: var(--ink);
  background: transparent;
  padding: 5px 8px;
  text-align: left;
  cursor: pointer;
}

.robot-model-list button:hover,
.robot-model-list button:focus-visible,
.choice-option:hover,
.choice-option:focus-visible {
  color: var(--accent);
  background: #f6e8e8;
}

.robot-model-list button.is-disabled,
.choice-option.is-disabled {
  color: #a4a4a4;
  background: #f3f3f3;
  cursor: not-allowed;
}

.robot-model-list button.is-disabled:hover,
.robot-model-list button.is-disabled:focus-visible,
.choice-option.is-disabled:hover,
.choice-option.is-disabled:focus-visible {
  color: #a4a4a4;
  background: #f3f3f3;
}

.choice-option.is-selected {
  color: var(--accent);
  background: #f6e8e8;
  font-weight: 800;
}

.switch-field {
  position: relative;
  display: inline-block;
  width: 58px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  background: var(--switch-on);
  cursor: pointer;
  transition: background 0.18s ease;
}

.switch-field input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-field span {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 2px 7px rgba(0, 0, 0, 0.26);
  transition: transform 0.18s ease, right 0.18s ease;
}

.switch-field:has(input:not(:checked)) {
  background: var(--switch-off);
}

.switch-field:has(input:not(:checked)) span {
  right: 32px;
}

.segmented {
  display: grid;
  grid-template-columns: auto repeat(2, 1fr);
  gap: 8px;
  align-items: center;
}

.segmented > span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.segmented label {
  position: relative;
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented b {
  display: grid;
  place-items: center;
  min-height: 38px;
  border: 1px solid #cfcfcf;
  border-radius: 4px;
  color: #444444;
  background: #ffffff;
  cursor: pointer;
  font-size: 14px;
}

.segmented input:checked + b {
  color: white;
  border-color: var(--accent);
  background: var(--accent);
}

.preview-column {
  display: grid;
  gap: 18px;
  align-content: start;
}

.rail-preview,
.spec-panel {
  padding: 18px;
}

.rail-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

#toast {
  min-width: 96px;
  color: var(--accent);
  font-size: 13px;
  text-align: right;
}

.rule-dialog {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.32);
}

.rule-dialog-box {
  width: min(360px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  padding: 22px;
}

.rule-dialog-box p {
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
}

.rule-dialog-box button {
  width: 100%;
  min-height: 40px;
  margin-top: 18px;
  border: 0;
  border-radius: 4px;
  color: #ffffff;
  background: var(--accent);
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
}

.rule-dialog-box button:hover {
  background: var(--accent-dark);
}

.diagram-stage {
  position: relative;
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 22px;
  min-height: clamp(720px, 68vw, 850px);
  margin-top: 18px;
  padding: 38px 26px 24px 44px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background-color: #ffffff;
  background-image:
    linear-gradient(rgba(153, 0, 0, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(153, 0, 0, 0.16) 1px, transparent 1px),
    linear-gradient(rgba(0, 0, 0, 0.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.075) 1px, transparent 1px);
  background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
  overflow: visible;
}

.diagram-stage::before,
.diagram-stage::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.diagram-stage::before {
  left: 44px;
  right: 0;
  top: 0;
  height: 24px;
  background:
    repeating-linear-gradient(90deg, rgba(51, 51, 51, 0.45) 0 1px, transparent 1px 20px),
    repeating-linear-gradient(90deg, rgba(153, 0, 0, 0.55) 0 2px, transparent 2px 100px);
}

.diagram-stage::after {
  left: 0;
  top: 38px;
  bottom: 0;
  width: 28px;
  background:
    repeating-linear-gradient(0deg, rgba(51, 51, 51, 0.45) 0 1px, transparent 1px 20px),
    repeating-linear-gradient(0deg, rgba(153, 0, 0, 0.55) 0 2px, transparent 2px 100px);
}

.diagram-scale {
  position: absolute;
  z-index: 1;
  color: rgba(51, 51, 51, 0.62);
  font-size: 10px;
  font-weight: 700;
  pointer-events: none;
}

.scale-x {
  top: 24px;
  left: 50px;
}

.scale-x::before {
  content: "20 px / 100 px";
}

.scale-y {
  left: 7px;
  top: 42px;
  writing-mode: vertical-rl;
}

.scale-y::before {
  content: "20 px / 100 px";
}

.diagram-layer {
  --carrier-top-width: 51.393%;
  --carrier-side-width: 41.216%;
  --riser-top-width: 37.296%;
  --riser-side-width: 24.215%;
  position: relative;
  z-index: 2;
  display: block;
  align-self: start;
  width: min(68%, 482px);
  margin-inline: auto;
  min-height: 0;
}

.diagram-top {
  transform: translateY(120px);
}

.diagram-side {
  transform: translateY(220px);
}

.diagram-layer img {
  display: block;
  height: auto;
  max-width: none;
  object-fit: contain;
  user-select: none;
}

.dimension-line {
  position: absolute;
  left: var(--dimension-left);
  right: calc(100% - var(--dimension-right));
  z-index: 1;
  height: 34px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  pointer-events: none;
}

.dimension-top {
  --dimension-left: 0%;
  --dimension-right: 100%;
  top: -94px;
}

.dimension-bottom {
  --dimension-left: 0%;
  --dimension-right: 100%;
  top: 102px;
}

.dimension-rule {
  position: absolute;
  left: 0;
  right: 0;
  top: 16px;
  height: 1px;
  background: currentColor;
}

.dimension-rule::before,
.dimension-rule::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  transform: translateY(-50%);
}

.dimension-rule::before {
  left: 0;
  border-right: 9px solid currentColor;
}

.dimension-rule::after {
  right: 0;
  border-left: 9px solid currentColor;
}

.dimension-ext {
  position: absolute;
  border-left: 1px solid currentColor;
}

.dimension-top .dimension-ext {
  top: 16px;
  height: 150px;
}

.dimension-bottom .dimension-ext {
  top: -34px;
  height: 50px;
}

.dimension-ext-start {
  left: 0;
}

.dimension-ext-end {
  right: 0;
}

.dimension-text {
  position: absolute;
  left: 50%;
  top: 0;
  padding: 0 6px;
  background: #ffffff;
  transform: translateX(-50%);
  white-space: nowrap;
}

.diagram-top .diagram-beam {
  position: relative;
  z-index: 2;
  pointer-events: none;
  width: calc(102.5% * 1351 / 1189);
  transform: translateX(calc(-100% * 60 / 1351));
}

.diagram-side .diagram-beam {
  position: relative;
  z-index: 2;
  pointer-events: none;
  width: calc(102.5% * 1362 / 1231);
  transform: translateX(calc(-100% * 58 / 1362));
}

.diagram-carrier {
  position: absolute;
  z-index: 3;
  height: auto;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.diagram-carrier.is-position-adjustable {
  cursor: ew-resize;
  pointer-events: auto;
}

.diagram-carrier.is-position-adjustable.is-selected,
.diagram-carrier.is-position-adjustable:focus-visible {
  outline: 1px dashed var(--accent);
  outline-offset: 3px;
}

.adjust-position-label {
  position: absolute;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 6px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  transform: translateY(-100%);
  cursor: ns-resize;
  pointer-events: auto;
  user-select: none;
}

.adjust-position-text {
  pointer-events: none;
}

.adjust-scale-handle {
  display: inline-flex;
  align-items: center;
  min-height: 12px;
  padding-left: 5px;
  border-left: 1px solid var(--line);
  color: var(--accent);
  cursor: ew-resize;
  font-size: 9px;
  letter-spacing: 0;
  text-transform: uppercase;
}

.diagram-riser {
  position: absolute;
  z-index: 4;
  height: auto;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.diagram-robot {
  position: absolute;
  z-index: 5;
  inset: 0;
  margin: 0;
  transform: rotate(var(--robot-angle, 0deg));
  transform-origin: var(--robot-pivot-x) var(--robot-pivot-y);
  pointer-events: none;
}

.diagram-robot img {
  position: absolute;
  left: var(--robot-image-x);
  top: var(--robot-image-y);
  width: 42%;
  transform: translate(-50%, -50%);
}

.diagram-robot.robot-1 {
  --robot-pivot-x: 87.59%;
  --robot-pivot-y: 46.71%;
  --robot-image-x: 73.59%;
  --robot-image-y: 46.71%;
}

.diagram-robot.robot-2 {
  --robot-pivot-x: 14.81%;
  --robot-pivot-y: 46.71%;
  --robot-image-x: 0.81%;
  --robot-image-y: 46.71%;
}

.diagram-side-robot {
  position: absolute;
  z-index: 7;
  left: var(--side-robot-center-x);
  top: var(--side-robot-base-y, 30.65%);
  width: var(--side-robot-width);
  margin: 0;
  transform: translate(calc(var(--side-robot-anchor-x) * -1), calc(var(--side-robot-anchor-y) * -1));
  pointer-events: none;
}

.diagram-side-robot[data-carrier="1"] {
  --side-robot-center-x: 87.59%;
}

.diagram-side-robot[data-carrier="2"] {
  --side-robot-center-x: 14.81%;
}

.diagram-side-robot img {
  width: 100%;
  height: auto;
}

.side-robot-kuka {
  --side-robot-width: 49.662%;
  --side-robot-anchor-x: 69.146%;
  --side-robot-anchor-y: 92.919%;
}

.side-robot-fanuc {
  --side-robot-width: 49.446%;
  --side-robot-anchor-x: 70.954%;
  --side-robot-anchor-y: 91.150%;
}

.side-robot-abb {
  --side-robot-width: 48.708%;
  --side-robot-anchor-x: 74.017%;
  --side-robot-anchor-y: 87.818%;
}

.side-robot-yaskawa {
  --side-robot-width: 40.500%;
  --side-robot-anchor-x: 72.128%;
  --side-robot-anchor-y: 90.413%;
}

.chain-layout {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.chain-top-layout {
  inset: 0;
}

.chain-side-layout {
  inset: 0;
  z-index: auto;
}

.chain-side-layout .chain-lf,
.chain-side-layout .chain-lr {
  z-index: 1;
}

.chain-side-layout .chain-rf,
.chain-side-layout .chain-rr {
  z-index: 6;
}

.center-chain-layout {
  z-index: 2;
}

.diagram-chain {
  position: absolute;
  width: 64.297%;
  margin: 0;
  transform: translate(-50%, -50%);
}

.diagram-chain.is-position-adjustable {
  cursor: ew-resize;
  pointer-events: auto;
}

.diagram-chain.is-position-adjustable[data-adjust-axis="y"] {
  cursor: ns-resize;
}

.adjust-position-label[data-adjust-axis="x"] {
  cursor: ew-resize;
}

.diagram-chain.is-position-adjustable[data-adjust-axis="none"],
.adjust-position-label[data-adjust-axis="none"] {
  cursor: default;
}

.diagram-chain.is-position-adjustable[data-adjust-axis="xy"],
.adjust-position-label[data-adjust-axis="xy"] {
  cursor: move;
}

.diagram-chain.is-position-adjustable.is-selected,
.diagram-chain.is-position-adjustable:focus-visible {
  outline: 1px dashed var(--accent);
  outline-offset: 3px;
}

.diagram-chain.is-adjustable {
  cursor: ns-resize;
  pointer-events: auto;
}

.diagram-chain.is-adjustable::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px dashed transparent;
}

.diagram-chain.is-adjustable::before {
  content: attr(data-position-label);
  position: absolute;
  left: -6px;
  top: -22px;
  z-index: 6;
  padding: 3px 6px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  transform: translateX(-100%);
}

.diagram-chain.is-adjustable.is-selected::after,
.diagram-chain.is-adjustable:focus-visible::after {
  border-color: var(--accent);
}

.diagram-chain img {
  display: block;
  width: auto;
  height: auto;
  max-width: none;
}

.diagram-chain figcaption {
  display: none;
}

.chain-top-layout .chain-lf {
  left: 67.31%;
  top: 29.15%;
}

.chain-top-layout .chain-lr {
  left: 67.31%;
  top: 26.46%;
}

.chain-top-layout .chain-rf {
  left: 67.31%;
  top: 67.57%;
}

.chain-top-layout .chain-rr {
  left: 67.31%;
  top: 67.36%;
}

.carrier2-chain-top-layout .chain-lf {
  left: 35.19%;
  top: 26.45%;
}

.carrier2-chain-top-layout .chain-lr {
  left: 35.19%;
  top: 29.05%;
}

.carrier2-chain-top-layout .chain-rf {
  left: 35.19%;
  top: 67.36%;
}

.carrier2-chain-top-layout .chain-rr {
  left: 35.19%;
  top: 67.51%;
}

.carrier1-center-chain-layout .chain-cf {
  left: 57.8%;
  top: 46.82%;
}

.carrier1-center-chain-layout .chain-cr {
  left: 94.02%;
  top: 44.28%;
}

.carrier2-center-chain-top-layout .chain-cf {
  left: 11.95%;
  top: 44.23%;
}

.carrier2-chain-top-layout .diagram-chain.is-position-adjustable {
  z-index: 8;
}

.carrier2-chain-top-layout .chain-rf.is-position-adjustable {
  z-index: 12;
}

.carrier2-chain-side-layout .diagram-chain.is-position-adjustable {
  z-index: 12;
}

.chain-side-layout .chain-lf {
  left: 67.31%;
  top: 45.03%;
}

.chain-side-layout .chain-lr {
  left: 67.31%;
  top: 41.25%;
}

.chain-side-layout .chain-rf {
  left: 67.31%;
  top: 34.68%;
}

.chain-side-layout .chain-rr {
  left: 67.31%;
  top: 40.71%;
}

.carrier2-chain-side-layout .chain-lf {
  left: 35.19%;
  top: 41.74%;
}

.carrier2-chain-side-layout .chain-lr {
  left: 35.19%;
  top: 45.45%;
}

.carrier2-chain-side-layout .chain-rf {
  left: 35.19%;
  top: 40.59%;
}

.carrier2-chain-side-layout .chain-rr {
  left: 35.19%;
  top: 34.66%;
}

.carrier1-center-chain-side-layout .chain-cf {
  left: 57.8%;
  top: 35.05%;
}

.carrier1-center-chain-side-layout .chain-cr {
  left: 94.02%;
  top: 30.07%;
}

.carrier2-center-chain-side-layout .chain-cf {
  left: 11.95%;
  top: 30.07%;
}

.carrier2-center-chain-side-layout .chain-cr {
  left: 35.19%;
  top: 48%;
}

.chain-top-layout .chain-cf img {
  width: calc(100% * 721 / 644);
  transform: translateX(calc(-100% * 33 / 721));
}

.chain-top-layout .chain-cr img {
  width: calc(100% * 647 / 499);
  transform: translateX(calc(-100% * 77 / 647));
}

.chain-top-layout .chain-lf img {
  width: calc(100% * 892 / 776);
  transform: translateX(calc(-100% * 85 / 892));
}

.chain-top-layout .chain-lr img {
  width: calc(100% * 901 / 749);
  transform: translateX(calc(-100% * 70 / 901));
}

.chain-top-layout .chain-rf img {
  width: calc(100% * 977 / 792);
  transform: translateX(calc(-100% * 77 / 977));
}

.chain-top-layout .chain-rr img {
  width: calc(100% * 1036 / 776);
  transform: translateX(calc(-100% * 88 / 1036));
}

.carrier2-chain-top-layout .chain-lf img {
  width: calc(100% * 901 / 749);
  transform: translateX(calc(-100% * 82 / 901));
}

.carrier2-chain-top-layout .chain-lr img {
  width: calc(100% * 892 / 776);
  transform: translateX(calc(-100% * 31 / 892));
}

.carrier2-chain-top-layout .chain-rf img {
  width: calc(100% * 1036 / 776);
  transform: translateX(calc(-100% * 172 / 1036));
}

.carrier2-chain-top-layout .chain-rr img {
  width: calc(100% * 977 / 792);
  transform: translateX(calc(-100% * 108 / 977));
}

.carrier1-center-chain-layout .chain-cf img {
  width: calc(100% * 792 / 644);
  transform: translateX(calc(-100% * 73 / 792));
}

.carrier1-center-chain-layout .chain-cr img {
  width: calc(100% * 626 / 499);
  transform: translateX(calc(-100% * 46 / 626));
}

.carrier2-center-chain-top-layout .chain-cf img {
  width: calc(100% * 626 / 499);
  transform: translateX(calc(-100% * 81 / 626));
}

.carrier2-center-chain-top-layout .chain-cr img {
  width: calc(100% * 792 / 644);
  transform: translateX(calc(-100% * 75 / 792));
}

.chain-side-layout .chain-lf img {
  width: calc(100% * 925 / 749);
  transform: translateX(calc(-100% * 90 / 925));
}

.chain-side-layout .chain-lr img {
  width: calc(100% * 887 / 749);
  transform: translateX(calc(-100% * 53 / 887));
}

.chain-side-layout .chain-rf img {
  width: calc(100% * 967 / 792);
  transform: translateX(calc(-100% * 87 / 967));
}

.chain-side-layout .chain-rr img {
  width: calc(100% * 942 / 792);
  transform: translateX(calc(-100% * 59 / 942));
}

.carrier2-chain-side-layout .chain-lf img {
  width: calc(100% * 887 / 749);
  transform: translateX(calc(-100% * 85 / 887));
}

.carrier2-chain-side-layout .chain-lr img {
  width: calc(100% * 925 / 749);
  transform: translateX(calc(-100% * 86 / 925));
}

.carrier2-chain-side-layout .chain-rf img {
  width: calc(100% * 942 / 792);
  transform: translateX(calc(-100% * 91 / 942));
}

.carrier2-chain-side-layout .chain-rr img {
  width: calc(100% * 967 / 792);
  transform: translateX(calc(-100% * 88 / 967));
}

.carrier1-center-chain-side-layout .chain-cf img {
  width: calc(100% * 721 / 644);
  transform: translateX(calc(-100% * 33 / 721));
}

.carrier1-center-chain-side-layout .chain-cr img {
  width: calc(100% * 647 / 499);
  transform: translateX(calc(-100% * 77 / 647));
}

.carrier2-center-chain-side-layout .chain-cf img {
  width: calc(100% * 647 / 499);
  transform: translateX(calc(-100% * 71 / 647));
}

.carrier2-center-chain-side-layout .chain-cr img {
  width: calc(100% * 721 / 644);
  transform: translateX(calc(-100% * 44 / 721));
}

.diagram-top .carrier-1 {
  left: 85.83%;
  top: 48.31%;
  width: var(--carrier-top-width);
}

.diagram-side .carrier-1 {
  left: 86.65%;
  top: 37.44%;
  width: var(--carrier-side-width);
}

.diagram-top .carrier-2 {
  left: 13.05%;
  top: 48.31%;
  width: var(--carrier-top-width);
}

.diagram-side .carrier-2 {
  left: 13.90%;
  top: 37.44%;
  width: var(--carrier-side-width);
}

.diagram-top .riser-1 {
  left: 87.61%;
  top: 47.11%;
  width: var(--riser-top-width);
}

.diagram-top .riser-2 {
  left: 14.83%;
  top: 47.11%;
  width: var(--riser-top-width);
}

.diagram-side .riser-1 {
  left: 87.42%;
  top: 30.09%;
  width: var(--riser-side-width);
}

.diagram-side .riser-2 {
  left: 14.67%;
  top: 30.09%;
  width: var(--riser-side-width);
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0 0;
}

.spec-item {
  min-height: 74px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #ffffff;
}

.spec-item dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.spec-item dd {
  margin: 7px 0 0;
  font-weight: 800;
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .app-shell {
    padding: 18px;
  }

  .topbar,
  .tool-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 28px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 12px;
  }

  .model-card {
    grid-template-columns: 1fr;
  }

  .icon-button {
    grid-column: auto;
  }

  .segmented,
  .spec-list {
    grid-template-columns: 1fr 1fr;
  }

  .inline-field,
  .field-row {
    grid-template-columns: 1fr;
  }

  .segmented > span {
    grid-column: 1 / -1;
  }

  .diagram-stage {
    min-height: 630px;
    padding: 34px 14px 18px 32px;
  }

  .diagram-layer {
    min-height: 0;
  }
}