/* Page-local compatibility rules loaded after the legacy site overrides. */
html body.fc-page .fc-main {
  width: min(1920px, calc(100% - 48px));
  max-width: none;
}

html body.fc-page .fc-consult .button.primary,
html body.fc-page .fc-consult .button.primary:link,
html body.fc-page .fc-consult .button.primary:visited {
  background: #fff !important;
  color: #102f2c !important;
  -webkit-text-fill-color: #102f2c !important;
}

html body.fc-page .fc-consult .button.primary:hover,
html body.fc-page .fc-consult .button.primary:focus-visible {
  background: #e8f0ed !important;
  color: #102f2c !important;
  -webkit-text-fill-color: #102f2c !important;
}

html body.fc-page .fc-nav a.is-current,
html body.fc-page .fc-nav a[aria-current="location"] {
  color: #0e5f5a !important;
}

/* Five-color identity: a restrained cue on the opening screen. */
.fc-hero-spectrum {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: -8px;
}

.fc-hero-spectrum span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #53605e;
  font-size: 12px;
  font-weight: 720;
  letter-spacing: .08em;
}

.fc-hero-spectrum i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--fc-tone);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--fc-tone) 13%, transparent);
}

.fc-hero-spectrum .is-warm { --fc-tone: #e0a94c; }
.fc-hero-spectrum .is-humid { --fc-tone: #4c9aca; }
.fc-hero-spectrum .is-air { --fc-tone: #55b7ad; }
.fc-hero-spectrum .is-clean { --fc-tone: #78aa7b; }
.fc-hero-spectrum .is-quiet { --fc-tone: #7c79ae; }

/* Immersive editorial opening: architecture is the canvas, not a side illustration. */
html body.fc-page .fc-hero {
  --fc-hero-height: clamp(720px, calc(100svh - 210px), 920px);
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  min-height: var(--fc-hero-height);
  margin-top: 34px;
  overflow: hidden;
  border-radius: 30px;
  background: #101817;
  box-shadow: 0 32px 90px rgba(13, 28, 27, .2);
}

html body.fc-page .fc-hero-track {
  position: relative;
  min-height: var(--fc-hero-height);
}

html body.fc-page .fc-hero-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr;
  min-height: var(--fc-hero-height);
  opacity: 0;
  visibility: hidden;
  transform: scale(1.015);
  transition: opacity .85s ease, transform 1.4s ease, visibility 0s linear .85s;
}

html body.fc-page .fc-hero-slide.is-active {
  z-index: 2;
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  transition-delay: 0s;
}

html body.fc-page .fc-hero-visual {
  grid-area: 1 / 1;
  min-height: var(--fc-hero-height);
  border-radius: 0;
  box-shadow: none;
}

html body.fc-page .fc-hero-visual::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 15, 15, .88) 0%, rgba(8, 15, 15, .67) 30%, rgba(8, 15, 15, .13) 57%, rgba(8, 15, 15, .04) 100%),
    linear-gradient(180deg, rgba(4, 11, 12, .08), rgba(4, 11, 12, .16));
  pointer-events: none;
}

html body.fc-page .fc-hero-visual::after {
  inset: 64% 0 0;
  background: linear-gradient(180deg, transparent, rgba(5, 13, 13, .55));
}

html body.fc-page .fc-hero-visual img {
  min-height: var(--fc-hero-height);
  object-position: center;
}

html body.fc-page .fc-hero-copy {
  position: relative;
  z-index: 3;
  grid-area: 1 / 1;
  align-self: center;
  width: min(520px, 46%);
  padding: 74px 0 74px 60px;
  color: #fff;
}

html body.fc-page .fc-hero h1 {
  max-width: 7em;
  color: #fff;
  font-size: clamp(58px, 6vw, 86px);
  line-height: 1.02;
  letter-spacing: -.05em;
  text-wrap: balance;
}

html body.fc-page .fc-hero-slide:first-child h1 {
  max-width: none;
  font-size: clamp(52px, 4.7vw, 72px);
  white-space: nowrap;
}

html body.fc-page .fc-hero h2 {
  max-width: 7em;
  margin: 0;
  color: #fff;
  font: 400 clamp(52px, 5.4vw, 78px)/1.08 "Songti SC","STSong",serif;
  letter-spacing: -.045em;
}

html body.fc-page .fc-hero .fc-kicker {
  color: #8ed5cb;
}

html body.fc-page .fc-hero-lead {
  max-width: 16em;
  color: rgba(255,255,255,.94);
  font-size: 22px;
  line-height: 1.62;
}

html body.fc-page .fc-hero-body {
  max-width: 31em;
  color: rgba(255,255,255,.7);
  font-size: 15px;
  line-height: 1.85;
}

html body.fc-page .fc-hero-spectrum span {
  color: rgba(255,255,255,.84);
}

html body.fc-page .fc-hero-spectrum i {
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--fc-tone) 22%, transparent);
}

html body.fc-page .fc-hero .button.primary {
  border-color: #fff;
  background: #fff;
  color: #123b37 !important;
  -webkit-text-fill-color: #123b37 !important;
}

html body.fc-page .fc-hero .button.ghost {
  border-color: rgba(255,255,255,.52);
  background: rgba(255,255,255,.06);
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  backdrop-filter: blur(10px);
}

html body.fc-page .fc-hero-visual figcaption {
  z-index: 3;
  left: auto;
  right: 34px;
  bottom: 30px;
  justify-items: end;
  text-align: right;
}

html body.fc-page .fc-hero-visual figcaption strong {
  font: 500 17px/1.4 inherit;
  letter-spacing: .05em;
}

html body.fc-page .fc-hero-visual figcaption span {
  color: rgba(255,255,255,.65);
  font-size: 10px;
  letter-spacing: .16em;
}

.fc-hero-controls {
  position: absolute;
  z-index: 8;
  right: 34px;
  bottom: 28px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.fc-hero-arrow,
.fc-hero-dots button {
  appearance: none;
  border: 0;
  cursor: pointer;
}

.fc-hero-arrow {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 50%;
  background: rgba(5,15,15,.3);
  color: #fff;
  font-size: 15px;
  backdrop-filter: blur(10px);
}

.fc-hero-dots {
  display: flex;
  gap: 7px;
}

.fc-hero-dots button {
  width: 7px;
  height: 7px;
  padding: 0;
  border-radius: 99px;
  background: rgba(255,255,255,.42);
  transition: width .25s ease, background .25s ease;
}

.fc-hero-dots button.is-active {
  width: 25px;
  background: #8ed5cb;
}

/* Five outcomes as a connected residential climate spectrum. */
html body.fc-page .fc-outcomes {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, calc((100% - 96px) / 5));
  justify-content: space-between;
  width: 100%;
  max-width: none;
  gap: 24px;
  margin-inline: 0;
  padding-right: 0;
  padding-left: 0;
  box-sizing: border-box;
  padding-top: 20px;
}

html body.fc-page .fc-outcomes::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, #e2aa45, #51a6cf 25%, #4bb7ad 50%, #75aa77 75%, #7774ad);
  opacity: .9;
}

html body.fc-page .fc-outcomes article {
  --outcome: #4bb7ad;
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  align-content: start;
  gap: 16px;
  min-height: 350px;
  padding: 22px 18px 20px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--outcome) 22%, white);
  border-radius: 22px;
  background:
    radial-gradient(circle at 84% 13%, color-mix(in srgb, var(--outcome) 19%, transparent), transparent 31%),
    linear-gradient(155deg, color-mix(in srgb, var(--outcome) 8%, white), rgba(255,255,255,.96));
  box-shadow: 0 16px 42px rgba(24, 50, 47, .07);
  transition: transform .25s ease, box-shadow .25s ease;
}

html body.fc-page .fc-outcomes article:nth-child(n) {
  grid-column: auto;
  max-width: none;
}

html body.fc-page .fc-outcomes article:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 58px color-mix(in srgb, var(--outcome) 16%, transparent);
}

html body.fc-page .fc-outcomes .outcome-warm { --outcome: #dfa744; }
html body.fc-page .fc-outcomes .outcome-humid { --outcome: #4f9fcb; }
html body.fc-page .fc-outcomes .outcome-air { --outcome: #4bb7ad; }
html body.fc-page .fc-outcomes .outcome-clean { --outcome: #70a975; }
html body.fc-page .fc-outcomes .outcome-quiet { --outcome: #7774ad; }

html body.fc-page .fc-outcomes img {
  width: 82px;
  height: 82px;
  padding: 7px;
  object-fit: contain;
  border-radius: 26px;
  background: rgba(255,255,255,.74);
  filter: saturate(1.12) contrast(1.03);
  box-shadow: 0 12px 30px color-mix(in srgb, var(--outcome) 18%, transparent);
}

html body.fc-page .fc-outcomes article > div {
  display: grid;
  gap: 10px;
}

html body.fc-page .fc-outcomes strong {
  color: #172927;
  font: 500 29px/1.2 "Songti SC","STSong",serif;
}

html body.fc-page .fc-outcomes p {
  min-height: 6.4em;
  margin: 0;
  color: #52605e;
  font-size: 14px;
  line-height: 1.75;
}

html body.fc-page .fc-outcomes small {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

html body.fc-page .fc-outcomes small b {
  padding: 5px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--outcome) 13%, white);
  color: color-mix(in srgb, var(--outcome) 65%, #1b3532);
  font-size: 10px;
  font-weight: 750;
}

@media (max-width: 1040px) and (min-width: 761px) {
  html body.fc-page .fc-outcomes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  html body.fc-page .fc-outcomes article {
    min-height: 320px;
  }
}

/* Evidence panel: the reading order is title, explanation, then five measurable results. */
html body.fc-page .fc-proof {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 104px;
  padding: 48px 48px 38px;
  border: 1px solid rgba(34, 92, 85, .11);
  border-radius: 26px;
  background:
    radial-gradient(circle at 96% 0%, rgba(82, 172, 161, .13), transparent 28%),
    linear-gradient(135deg, #f3f8f6, #fbfaf5 64%);
}

html body.fc-page .fc-proof > div:first-child {
  display: grid;
  gap: 14px;
  max-width: 780px;
}

html body.fc-page .fc-proof h2 {
  margin-bottom: 0;
}

html body.fc-page .fc-proof-image {
  position: relative;
  margin-top: 34px;
  border-color: rgba(88, 126, 178, .16);
  border-radius: 24px;
  background: #e9eef4;
  box-shadow: 0 26px 72px rgba(57, 77, 112, .13);
}

html body.fc-page .fc-proof-image img {
  aspect-ratio: 16 / 6.7;
  object-position: center 36%;
}

html body.fc-page .fc-proof-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

html body.fc-page .fc-proof-list button {
  --proof-accent: #4faaa0;
  --pulse-x: 50%;
  --pulse-y: 50%;
  position: relative;
  isolation: isolate;
  display: grid;
  align-content: start;
  gap: 8px;
  min-width: 0;
  min-height: 156px;
  padding: 20px 18px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--proof-accent) 24%, white);
  border-radius: 19px;
  background:
    radial-gradient(circle at 90% 5%, color-mix(in srgb, var(--proof-accent) 24%, transparent), transparent 34%),
    rgba(255,255,255,.72);
  box-shadow: 0 16px 32px rgba(26, 67, 62, .07);
  color: #203c38;
  text-align: left;
  cursor: pointer;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}

html body.fc-page .fc-proof-list button:nth-child(2) { --proof-accent: #4f8fbd; }
html body.fc-page .fc-proof-list button:nth-child(3) { --proof-accent: #7a75ad; }
html body.fc-page .fc-proof-list button:nth-child(4) { --proof-accent: #d1a24e; }
html body.fc-page .fc-proof-list button:nth-child(5) { --proof-accent: #6b9d74; }

html body.fc-page .fc-proof-list button::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: auto 0 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--proof-accent), transparent);
  opacity: .5;
}

html body.fc-page .fc-proof-list button::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: var(--pulse-x);
  top: var(--pulse-y);
  width: 12px;
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--proof-accent) 65%, white);
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%, -50%) scale(1);
}

html body.fc-page .fc-proof-list button:hover,
html body.fc-page .fc-proof-list button:focus-visible,
html body.fc-page .fc-proof-list button.is-selected {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--proof-accent) 52%, white);
  box-shadow: 0 22px 42px color-mix(in srgb, var(--proof-accent) 17%, transparent);
  outline: none;
}

html body.fc-page .fc-proof-list button.is-activated::after {
  animation: fc-proof-pulse .72s ease-out;
}

html body.fc-page .fc-proof-list span {
  color: var(--proof-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
}

html body.fc-page .fc-proof-list strong {
  font-size: 17px;
  line-height: 1.4;
}

html body.fc-page .fc-proof-list small {
  color: #62716e;
  font-size: 12px;
  line-height: 1.5;
}

@keyframes fc-proof-pulse {
  0% { opacity: .85; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(24); }
}

html body.fc-page .fc-proof > .fc-note {
  grid-column: auto;
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(14,95,90,.1);
}

/* Bespoke assessment CTA: architectural diagnosis instead of a flat green poster. */
html body.fc-page .fc-consult {
  position: relative;
  isolation: isolate;
  width: 100%;
  min-height: 600px;
  margin-top: 96px;
  padding: 72px 64px;
  overflow: hidden;
  border: 1px solid rgba(99, 177, 167, .2);
  border-radius: 30px;
  background:
    linear-gradient(90deg, rgba(5,12,14,.95) 0%, rgba(5,12,14,.88) 37%, rgba(5,12,14,.42) 59%, rgba(5,12,14,.1) 100%),
    url("../images/residential-climate-assessment-premium-20260718.jpg") center / cover no-repeat;
  box-shadow: 0 34px 84px rgba(7, 19, 21, .22);
  color: #fff;
}

html body.fc-page .fc-consult::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(4,11,13,.5));
  pointer-events: none;
}

html body.fc-page .fc-consult > * {
  width: min(570px, 52%);
}

html body.fc-page .fc-consult .fc-kicker {
  color: #82d1c8;
}

html body.fc-page .fc-consult h2 {
  font-size: clamp(40px, 4vw, 58px);
  line-height: 1.32;
  text-wrap: balance;
}

html body.fc-page .fc-consult > p {
  color: rgba(255,255,255,.72);
}

html body.fc-page .fc-consult-gain {
  border-color: rgba(130, 209, 200, .26);
}

html body.fc-page .fc-consult-gain span {
  color: #82d1c8;
}

/* Reduce the two longest chapters after the visual upgrade. */
html body.fc-page #fc-climate,
html body.fc-page #fc-values {
  gap: 30px;
}

html body.fc-page #fc-climate .fc-four article {
  padding-top: 20px;
  padding-bottom: 20px;
}

html body.fc-page #fc-values {
  padding-top: 50px;
  padding-bottom: 50px;
}

/* Case wall: visual proof of a mature national application network. */
html body.fc-page .fc-case-grid {
  gap: 18px;
  border-top: 0;
}

html body.fc-page .fc-case-grid article {
  gap: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(28, 73, 68, .11);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 18px 46px rgba(21, 48, 45, .08);
}

html body.fc-page .fc-case-grid article + article {
  padding-left: 0;
  border-left: 1px solid rgba(28, 73, 68, .11);
}

html body.fc-page .fc-case-grid figure {
  margin: 0;
  overflow: hidden;
}

html body.fc-page .fc-case-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .5s ease;
}

html body.fc-page .fc-case-grid article:hover img {
  transform: scale(1.025);
}

.fc-case-copy {
  display: grid;
  gap: 14px;
  padding: 24px 24px 26px;
}

html body.fc-page .fc-case-grid h3 {
  font-size: 23px;
  line-height: 1.48;
}

html body.fc-page .fc-case-grid p {
  margin: 0;
  color: rgba(39,50,58,.7);
  font-size: 13px;
  line-height: 1.78;
}

.fc-case-reach {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 25px 30px;
  border-radius: 18px;
  background: linear-gradient(90deg, #153c38, #215d56 58%, #32776d);
  color: #fff;
}

.fc-case-reach span {
  color: #9dd9d1;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
}

.fc-case-reach strong {
  font-size: 17px;
  letter-spacing: .04em;
}

/* Interactive value cards: restrained scan, pulse and selected state. */
html body.fc-page .fc-value-spectrum article {
  --pulse-x: 50%;
  --pulse-y: 50%;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  cursor: pointer;
  outline: none;
  transform: translateY(0);
  transition: transform .28s ease, box-shadow .28s ease, filter .28s ease;
}

html body.fc-page .fc-value-spectrum article::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -45%;
  bottom: -45%;
  left: -42%;
  width: 30%;
  opacity: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.72), transparent);
  transform: skewX(-18deg);
  pointer-events: none;
}

html body.fc-page .fc-value-spectrum article::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: var(--pulse-x);
  top: var(--pulse-y);
  width: 18px;
  height: 18px;
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%,-50%) scale(.3);
  pointer-events: none;
}

html body.fc-page .fc-value-spectrum article:hover,
html body.fc-page .fc-value-spectrum article:focus-visible,
html body.fc-page .fc-value-spectrum article.is-selected {
  transform: translateY(-5px);
  filter: saturate(1.06);
  box-shadow: 0 22px 48px rgba(31, 77, 72, .14);
}

html body.fc-page .fc-value-spectrum article:focus-visible {
  box-shadow: 0 0 0 3px rgba(71, 166, 156, .28), 0 22px 48px rgba(31, 77, 72, .14);
}

html body.fc-page .fc-value-spectrum article.is-activated::before {
  animation: fc-card-scan .72s ease-out;
}

html body.fc-page .fc-value-spectrum article.is-activated::after {
  animation: fc-card-pulse .7s ease-out;
}

html body.fc-page .fc-value-spectrum article.is-activated strong {
  animation: fc-card-title .55s ease-out;
}

html body.fc-page .fc-value-spectrum article.is-activated > span {
  animation: fc-card-index .55s ease-out;
}

@keyframes fc-card-scan {
  0% { left: -42%; opacity: 0; }
  22% { opacity: .8; }
  100% { left: 116%; opacity: 0; }
}

@keyframes fc-card-pulse {
  0% { opacity: .72; transform: translate(-50%,-50%) scale(.35); }
  100% { opacity: 0; transform: translate(-50%,-50%) scale(22); }
}

@keyframes fc-card-title {
  0%,100% { transform: translateX(0); }
  45% { transform: translateX(5px); }
}

@keyframes fc-card-index {
  0%,100% { letter-spacing: .14em; opacity: .72; }
  45% { letter-spacing: .28em; opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html body.fc-page .fc-value-spectrum article,
  html body.fc-page .fc-value-spectrum article::before,
  html body.fc-page .fc-value-spectrum article::after,
  html body.fc-page .fc-value-spectrum article strong,
  html body.fc-page .fc-value-spectrum article > span {
    animation: none !important;
    transition: none !important;
  }
}

/* Delivery workflow: six responsive process cards with technical feedback. */
html body.fc-page .fc-delivery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  border-top: 0;
}

html body.fc-page .fc-delivery article {
  --delivery-tone: #55b7ad;
  --pulse-x: 50%;
  --pulse-y: 50%;
  position: relative;
  isolation: isolate;
  display: grid;
  align-content: start;
  gap: 14px;
  min-height: 240px;
  padding: 26px 28px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--delivery-tone) 23%, white);
  border-radius: 22px;
  background:
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--delivery-tone) 20%, transparent), transparent 30%),
    linear-gradient(150deg, color-mix(in srgb, var(--delivery-tone) 9%, white), rgba(255,255,255,.97));
  cursor: pointer;
  outline: none;
  transition: transform .28s ease, box-shadow .28s ease, filter .28s ease;
}

html body.fc-page .fc-delivery article:nth-child(1) { --delivery-tone: #4eb5ab; }
html body.fc-page .fc-delivery article:nth-child(2) { --delivery-tone: #579fd0; }
html body.fc-page .fc-delivery article:nth-child(3) { --delivery-tone: #817db5; }
html body.fc-page .fc-delivery article:nth-child(4) { --delivery-tone: #d4a44d; }
html body.fc-page .fc-delivery article:nth-child(5) { --delivery-tone: #d98468; }
html body.fc-page .fc-delivery article:nth-child(6) { --delivery-tone: #6d9e74; }

html body.fc-page .fc-delivery article + article {
  padding-left: 28px;
  border-left: 1px solid color-mix(in srgb, var(--delivery-tone) 23%, white);
}

html body.fc-page .fc-delivery article::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -45%;
  bottom: -45%;
  left: -42%;
  width: 30%;
  opacity: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.78), transparent);
  transform: skewX(-18deg);
  pointer-events: none;
}

html body.fc-page .fc-delivery article::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: var(--pulse-x);
  top: var(--pulse-y);
  width: 18px;
  height: 18px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%,-50%) scale(.3);
  pointer-events: none;
}

html body.fc-page .fc-delivery article:hover,
html body.fc-page .fc-delivery article:focus-visible,
html body.fc-page .fc-delivery article.is-selected {
  transform: translateY(-5px);
  filter: saturate(1.06);
  box-shadow: 0 22px 48px color-mix(in srgb, var(--delivery-tone) 18%, transparent);
}

html body.fc-page .fc-delivery article.is-activated::before {
  animation: fc-card-scan .72s ease-out;
}

html body.fc-page .fc-delivery article.is-activated::after {
  animation: fc-card-pulse .7s ease-out;
}

html body.fc-page .fc-delivery article.is-activated strong {
  animation: fc-card-title .55s ease-out;
}

html body.fc-page .fc-delivery article > span {
  color: color-mix(in srgb, var(--delivery-tone) 74%, #173431);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
}

html body.fc-page .fc-delivery article > strong {
  color: #182b29;
  font: 500 28px/1.3 "Songti SC","STSong",serif;
}

html body.fc-page .fc-delivery article > p {
  margin: 0;
  color: rgba(39,50,58,.72);
  font-size: 14px;
  line-height: 1.8;
}

@media (max-width: 760px) {
  html body.fc-page .fc-delivery {
    grid-template-columns: 1fr;
  }
  html body.fc-page .fc-delivery article {
    min-height: 0;
  }
}

/* The technical chapter now reads as two illustrated stories, not empty cards. */
#fc-science {
  position: relative;
  margin-inline: -28px;
  padding: 54px 28px 46px;
  overflow: hidden;
  border-top: 0;
  border-radius: 30px;
  background:
    radial-gradient(circle at 4% 8%, rgba(84, 184, 174, .13), transparent 25%),
    radial-gradient(circle at 94% 92%, rgba(224, 169, 76, .13), transparent 28%),
    linear-gradient(145deg, #f4faf8 0%, #fbfaf5 52%, #f6f8fb 100%);
}

#fc-science .fc-section-head {
  padding-inline: 20px;
}

#fc-science .fc-science-grid {
  gap: 22px;
}

#fc-science .fc-science-grid article {
  gap: 0;
  overflow: hidden;
  border: 1px solid rgba(16, 47, 44, .09);
  border-radius: 22px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 22px 55px rgba(23, 55, 51, .08);
}

#fc-science .fc-science-grid figure {
  border: 0;
  border-radius: 0;
  background: #eef6f4;
}

#fc-science .fc-science-grid img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.fc-science-copy {
  display: grid;
  gap: 12px;
  padding: 25px 28px 28px;
}

.fc-science-index {
  color: #0e746e;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .15em;
}

.science-dewpoint .fc-science-index {
  color: #b26e34;
}

.fc-science-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}

.fc-science-tags span {
  padding: 6px 10px;
  border-radius: 999px;
  background: #e9f5f2;
  color: #176b66;
  font-size: 11px;
  font-weight: 700;
}

.science-dewpoint .fc-science-tags span {
  background: #fbf0df;
  color: #94602f;
}

#fc-science .fc-authority,
#fc-science .fc-note {
  margin-inline: 20px;
}

/* Measurable indoor environment: standards, perception and engineering meaning. */
.fc-system {
  position: relative;
}

.fc-system > * {
  min-width: 0;
}

.fc-air-soul-head {
  max-width: 1120px;
}

.fc-air-soul-head > p:last-child {
  max-width: 980px;
}

.fc-air-soul-image {
  position: relative;
  margin-top: 38px;
  border-color: rgba(96, 130, 174, .16);
  border-radius: 30px;
  box-shadow: 0 30px 82px rgba(55, 74, 105, .15);
}

.fc-air-soul-image::after,
.fc-proof-image::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.24);
}

.fc-air-soul-image img {
  aspect-ratio: 16 / 7.4;
  object-position: center 54%;
}

.fc-air-backbone {
  --air-gap: 18px;
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--air-gap);
  align-items: stretch;
  margin: 48px 0 58px;
  padding: 36px;
  overflow: hidden;
  border-radius: 34px;
  background:
    radial-gradient(circle at 48% 0%, rgba(104, 181, 255, .18), transparent 32%),
    radial-gradient(circle at 92% 86%, rgba(169, 128, 238, .13), transparent 30%),
    linear-gradient(135deg, #f7fbff 0%, #f2f7fb 48%, #faf7ff 100%);
  border: 1px solid rgba(105, 135, 188, .16);
  box-shadow: 0 34px 90px rgba(77, 99, 143, .12);
}

.fc-air-backbone::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .38;
  background-image:
    linear-gradient(rgba(93,126,181,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(93,126,181,.07) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, transparent, #000 25%, #000 75%, transparent);
}

.fc-air-backbone article,
.fc-air-core {
  position: relative;
  z-index: 1;
}

.fc-air-backbone article {
  --air-tone: #d5aa50;
  min-height: 238px;
  padding: 27px 24px 25px;
  border: 1px solid color-mix(in srgb, var(--air-tone) 26%, white);
  border-radius: 24px;
  color: #657086;
  background:
    radial-gradient(circle at 92% 5%, color-mix(in srgb, var(--air-tone) 25%, transparent), transparent 42%),
    rgba(255,255,255,.78);
  backdrop-filter: blur(12px);
  transition: transform .35s ease, border-color .35s ease, background .35s ease;
}

.fc-air-backbone article:hover {
  transform: translateY(-7px);
  border-color: color-mix(in srgb, var(--air-tone) 55%, white);
  background: rgba(255,255,255,.94);
  box-shadow: 0 18px 38px color-mix(in srgb, var(--air-tone) 15%, transparent);
}

.fc-air-backbone article span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 70px;
  height: 32px;
  margin-bottom: 32px;
  border-radius: 999px;
  color: #092421;
  font-size: 14px;
  font-weight: 800;
  background: #c8efeb;
}

.fc-air-backbone article strong {
  display: block;
  color: #222b3e;
  font-size: clamp(17px, 1.25vw, 22px);
  line-height: 1.4;
}

.fc-air-backbone article p {
  margin: 13px 0 0;
  font-size: 14px;
  line-height: 1.75;
}

.fc-air-backbone .air-warm { --air-tone: #d5aa50; }
.fc-air-backbone .air-humid { --air-tone: #58a3cf; }
.fc-air-backbone .air-oxygen { --air-tone: #4aaea5; }
.fc-air-backbone .air-clean { --air-tone: #6ea77a; }
.fc-air-backbone .air-quiet { --air-tone: #817cb9; }
.fc-air-backbone .air-warm span { background: #f7d98d; }
.fc-air-backbone .air-humid span { background: #a7ddf2; }
.fc-air-backbone .air-oxygen span { background: #9ce2d8; }
.fc-air-backbone .air-clean span { background: #bde0bf; }
.fc-air-backbone .air-quiet span { background: #c9c7ed; }

.fc-air-core {
  grid-column: 1 / -1;
  grid-row: 1;
  place-self: center;
  display: none;
}

.fc-doas-intro {
  display: grid;
  grid-template-columns: minmax(360px, .86fr) minmax(0, 1.5fr);
  gap: 42px;
  margin: 0 0 82px;
  padding: 46px 48px;
  border: 1px solid rgba(14, 95, 90, .13);
  border-radius: 30px;
  background:
    radial-gradient(circle at 96% 0%, rgba(67, 203, 194, .15), transparent 34%),
    linear-gradient(135deg, #f7fbfa, #fffdf8);
}

.fc-doas-title h3 {
  margin: 16px 0 20px;
  color: #162521;
  font-size: clamp(34px, 3vw, 54px);
  font-weight: 520;
  line-height: 1.2;
  letter-spacing: -.04em;
}

.fc-doas-title > p:last-child {
  margin: 0;
  color: rgba(31, 46, 43, .72);
  font-size: 16px;
  line-height: 1.9;
}

.fc-doas-title > p strong {
  color: #0c5651;
}

.fc-doas-capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  border-top: 2px solid #163b37;
}

.fc-doas-capabilities article {
  padding: 28px 22px 10px;
}

.fc-doas-capabilities article + article {
  border-left: 1px solid rgba(14, 95, 90, .15);
}

.fc-doas-capabilities span {
  color: #168a82;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
}

.fc-doas-capabilities strong {
  display: block;
  margin: 22px 0 12px;
  color: #172724;
  font-size: 19px;
  line-height: 1.45;
}

.fc-doas-capabilities p {
  margin: 0;
  color: rgba(31, 46, 43, .67);
  font-size: 14px;
  line-height: 1.8;
}

.fc-route-head {
  margin-top: 0;
}

.fc-system-compare {
  display: grid;
  grid-template-columns: minmax(300px, .62fr) minmax(0, 1.38fr);
  gap: 46px;
  margin: -22px 0 84px;
  padding: 46px 48px;
  border: 1px solid rgba(99, 125, 177, .15);
  border-radius: 30px;
  background:
    radial-gradient(circle at 100% 0%, rgba(112, 177, 246, .13), transparent 28%),
    linear-gradient(145deg, #fbfcff, #f5f8fc);
}

.fc-system-compare-head h3,
.fc-operation-boundary h3,
.fc-case-record h3 {
  margin: 15px 0 17px;
  color: #222b3d;
  font: 400 clamp(30px, 2.5vw, 44px)/1.3 "Songti SC","STSong",serif;
}

.fc-system-compare-head > p:last-child,
.fc-operation-boundary > div > p:last-child,
.fc-case-record > div > p:last-child {
  margin: 0;
  color: #687287;
  font-size: 14px;
  line-height: 1.9;
}

.fc-system-compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 2px solid #7885ac;
}

.fc-system-compare-grid article {
  padding: 25px 20px 8px;
}

.fc-system-compare-grid article + article {
  border-left: 1px solid rgba(99, 125, 177, .16);
}

.fc-system-compare-grid span {
  color: #7581a3;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .12em;
}

.fc-system-compare-grid strong,
.fc-system-compare-grid b {
  display: block;
}

.fc-system-compare-grid strong {
  margin: 23px 0 11px;
  color: #20293b;
  font-size: 24px;
}

.fc-system-compare-grid b {
  min-height: 42px;
  color: #53617e;
  font-size: 13px;
  line-height: 1.55;
}

.fc-system-compare-grid p {
  margin: 14px 0 0;
  color: #727b8d;
  font-size: 12px;
  line-height: 1.8;
}

.fc-system-compare-grid .is-doas {
  background: linear-gradient(145deg, rgba(112,177,246,.09), rgba(154,127,227,.07));
  box-shadow: inset 0 3px #758ddd;
}

.fc-operation-boundary {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: minmax(320px, .75fr) minmax(0, 1.25fr);
  gap: 54px;
  margin-top: 18px;
  padding: 46px 48px;
  border: 1px solid rgba(103, 128, 177, .15);
  border-radius: 28px;
  background:
    radial-gradient(circle at 93% 12%, rgba(104, 173, 246, .14), transparent 28%),
    linear-gradient(135deg, #fcfdff, #f4f7fb);
}

.fc-delivery-console {
  display: grid;
  grid-template-columns: minmax(410px, .72fr) minmax(0, 1.28fr);
  gap: 20px;
  padding: 20px;
  border: 1px solid rgba(103, 122, 170, .14);
  border-radius: 30px;
  background:
    radial-gradient(circle at 92% 4%, rgba(117, 174, 255, .12), transparent 26%),
    radial-gradient(circle at 8% 96%, rgba(203, 151, 255, .10), transparent 28%),
    rgba(255,255,255,.78);
  box-shadow: 0 28px 80px rgba(70, 88, 132, .10);
}

.fc-value-console,
.fc-proof-console {
  display: grid;
  grid-template-columns: minmax(430px, .78fr) minmax(0, 1.22fr);
  gap: 20px;
  padding: 20px;
  border: 1px solid rgba(103,122,170,.14);
  border-radius: 30px;
  background:
    radial-gradient(circle at 92% 4%, rgba(117,174,255,.12), transparent 26%),
    radial-gradient(circle at 8% 96%, rgba(203,151,255,.10), transparent 28%),
    rgba(255,255,255,.78);
  box-shadow: 0 28px 80px rgba(70,88,132,.09);
}

html body.fc-page .fc-proof-console {
  margin-top: 22px;
}

.fc-value-console .fc-value-spectrum {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.fc-value-console .fc-value-spectrum article {
  min-height: 142px;
}

html body.fc-page .fc-proof-console .fc-proof-list {
  grid-template-columns: 1fr;
  gap: 9px;
  margin-top: 0;
}

html body.fc-page .fc-proof-console .fc-proof-list button {
  min-height: 76px;
  padding: 14px 17px;
}

.fc-topic-stage {
  position: relative;
  min-height: 430px;
  padding: 44px 46px;
  overflow: hidden;
  border: 1px solid rgba(114,139,194,.18);
  border-radius: 22px;
  color: #20283a;
  background:
    radial-gradient(circle at 88% 8%, rgba(112,174,246,.16), transparent 30%),
    radial-gradient(circle at 12% 92%, rgba(153,126,231,.10), transparent 30%),
    linear-gradient(145deg, rgba(255,255,255,.96), rgba(239,245,253,.90));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.94), 0 20px 50px rgba(79,100,148,.08);
}

.fc-topic-stage::after {
  content: "";
  position: absolute;
  right: -55px;
  bottom: -70px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(114,139,194,.12);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(111,144,213,.035), 0 0 0 84px rgba(143,118,222,.025);
}

.fc-topic-stage > * {
  position: relative;
  z-index: 1;
}

.fc-topic-stage > div > span {
  color: #7187bd;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .15em;
}

.fc-topic-stage h3 {
  max-width: 820px;
  margin: 18px 0 32px;
  color: #222b3f;
  font: 400 clamp(29px, 2.2vw, 42px)/1.34 "Songti SC","STSong",serif;
}

.fc-topic-stage dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding-top: 25px;
  border-top: 1px solid rgba(104,126,176,.16);
}

.fc-topic-stage dl > div {
  padding: 0 20px;
}

.fc-topic-stage dl > div:first-child { padding-left: 0; }
.fc-topic-stage dl > div + div { border-left: 1px solid rgba(104,126,176,.16); }

.fc-topic-stage dt {
  color: #7187bd;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .1em;
}

.fc-topic-stage dd {
  margin: 14px 0 0;
  color: #667186;
  font-size: 13px;
  line-height: 1.82;
}

.fc-topic-stage.is-refreshing > * {
  animation: fc-param-enter .38s ease both;
}

.fc-outcome-stage {
  min-height: 0;
  margin-top: 4px;
  padding-block: 38px;
}

html body.fc-page .fc-outcomes article {
  cursor: pointer;
}

html body.fc-page .fc-outcomes article.is-selected {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--outcome) 55%, white);
  box-shadow: 0 18px 38px color-mix(in srgb, var(--outcome) 16%, transparent);
}

.fc-delivery-console > *,
.fc-delivery-selector > * {
  min-width: 0;
}

.fc-delivery-selector {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.fc-delivery-selector button {
  --delivery-tone: #56aaa1;
  position: relative;
  display: grid;
  align-content: space-between;
  min-height: 142px;
  padding: 19px;
  border: 1px solid color-mix(in srgb, var(--delivery-tone) 30%, white);
  border-radius: 18px;
  color: #222a3c;
  text-align: left;
  background:
    radial-gradient(circle at 90% 8%, color-mix(in srgb, var(--delivery-tone) 32%, transparent), transparent 52%),
    linear-gradient(145deg, color-mix(in srgb, var(--delivery-tone) 16%, white), rgba(247,249,253,.92));
  cursor: pointer;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.fc-delivery-selector button:nth-child(2) { --delivery-tone: #5998ce; }
.fc-delivery-selector button:nth-child(3) { --delivery-tone: #817cb9; }
.fc-delivery-selector button:nth-child(4) { --delivery-tone: #d5aa50; }
.fc-delivery-selector button:nth-child(5) { --delivery-tone: #cf7f70; }
.fc-delivery-selector button:nth-child(6) { --delivery-tone: #72a47d; }

.fc-delivery-selector button:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--delivery-tone) 62%, white);
  box-shadow: 0 13px 28px color-mix(in srgb, var(--delivery-tone) 18%, transparent);
}

.fc-delivery-selector button.is-active {
  border-color: color-mix(in srgb, var(--delivery-tone) 72%, white);
  background:
    radial-gradient(circle at 88% 10%, color-mix(in srgb, var(--delivery-tone) 42%, transparent), transparent 50%),
    linear-gradient(135deg, color-mix(in srgb, var(--delivery-tone) 32%, white), rgba(246,249,255,.94));
  box-shadow:
    0 18px 40px color-mix(in srgb, var(--delivery-tone) 28%, transparent),
    inset 4px 0 0 color-mix(in srgb, var(--delivery-tone) 90%, #7585ef);
}

.fc-delivery-selector span {
  color: color-mix(in srgb, var(--delivery-tone) 88%, #394156);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .14em;
}

.fc-delivery-selector strong {
  align-self: end;
  font-size: 19px;
}

.fc-delivery-selector small {
  color: #5e6980;
  font-size: 10px;
}

.fc-delivery-stage {
  --delivery-stage-tone: #56aaa1;
  position: relative;
  min-height: 446px;
  padding: 44px 46px;
  overflow: hidden;
  border: 1px solid rgba(114, 139, 194, .18);
  border-radius: 22px;
  color: #20283a;
  background:
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--delivery-stage-tone) 20%, transparent), transparent 30%),
    radial-gradient(circle at 12% 92%, rgba(127, 117, 255, .10), transparent 30%),
    linear-gradient(145deg, rgba(255,255,255,.96), rgba(239,245,253,.90));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.94), 0 20px 50px rgba(79,100,148,.09);
}

.fc-delivery-stage::after {
  content: "";
  position: absolute;
  right: -55px;
  bottom: -70px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(114,139,194,.12);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(111,144,213,.035), 0 0 0 84px rgba(143,118,222,.025);
}

.fc-delivery-stage article {
  position: relative;
  z-index: 1;
  animation: fc-param-enter .38s ease both;
}

.fc-delivery-stage article[hidden] { display: none; }

.fc-delivery-stage header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px 20px;
  align-items: end;
}

.fc-delivery-stage header span {
  grid-column: 1 / -1;
  color: color-mix(in srgb, var(--delivery-stage-tone) 72%, #6975cf);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .16em;
}

.fc-delivery-stage header h3 {
  margin: 0;
  font: 400 clamp(32px, 2.6vw, 46px)/1.25 "Songti SC","STSong",serif;
}

.fc-delivery-stage header em {
  color: #717b91;
  font-size: 12px;
  font-style: normal;
}

.fc-delivery-lead {
  max-width: 720px;
  margin: 24px 0 28px;
  color: #5d687e;
  font-size: 14px;
  line-height: 1.85;
}

.fc-delivery-detail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(104,126,176,.16);
}

.fc-delivery-detail > div {
  padding: 25px 20px 0;
}

.fc-delivery-detail > div + div {
  border-left: 1px solid rgba(104,126,176,.16);
}

.fc-delivery-detail small {
  color: color-mix(in srgb, var(--delivery-stage-tone) 72%, #6975cf);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .12em;
}

.fc-delivery-detail strong {
  display: block;
  margin: 15px 0 10px;
  color: #252f44;
  font-size: 16px;
  line-height: 1.5;
}

.fc-delivery-detail p {
  margin: 0;
  color: #687388;
  font-size: 12px;
  line-height: 1.78;
}

.fc-operation-boundary ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(103,128,177,.18);
  border-left: 1px solid rgba(103,128,177,.18);
}

.fc-operation-boundary li {
  display: grid;
  gap: 8px;
  padding: 21px;
  border-right: 1px solid rgba(103,128,177,.18);
  border-bottom: 1px solid rgba(103,128,177,.18);
}

.fc-operation-boundary li span {
  color: #7184b5;
  font-size: 9px;
  font-weight: 850;
  letter-spacing: .14em;
}

.fc-operation-boundary li strong {
  color: #273148;
  font-size: 16px;
}

.fc-operation-boundary li small {
  color: #747e91;
  font-size: 11px;
  line-height: 1.65;
}

.fc-case-record {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: minmax(330px, .72fr) minmax(0, 1.28fr);
  gap: 50px;
  padding: 48px;
  border: 1px solid rgba(104, 129, 177, .15);
  border-radius: 28px;
  background:
    radial-gradient(circle at 96% 5%, rgba(145, 124, 224, .12), transparent 25%),
    linear-gradient(145deg, #fbfcff, #f5f8fc);
}

.fc-case-record-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: center;
}

.fc-case-record-grid span {
  display: flex;
  gap: 12px;
  align-items: center;
  min-height: 68px;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(104,129,177,.15);
  color: #424d65;
  font-size: 13px;
}

.fc-case-record-grid span:nth-child(odd) {
  border-right: 1px solid rgba(104,129,177,.15);
}

.fc-case-record-grid b {
  color: #7a87ab;
  font-size: 10px;
  letter-spacing: .12em;
}

.fc-fit {
  display: grid;
  gap: 42px;
  margin-top: 128px;
  padding: 58px 48px 48px;
  border: 1px solid rgba(102, 126, 176, .15);
  border-radius: 30px;
  background:
    radial-gradient(circle at 94% 5%, rgba(100, 176, 245, .15), transparent 26%),
    radial-gradient(circle at 5% 94%, rgba(202, 153, 239, .10), transparent 27%),
    linear-gradient(145deg, #fbfcff, #f5f8fb);
}

.fc-fit header {
  max-width: 940px;
}

.fc-fit h2 {
  margin: 15px 0 18px;
  color: #20293a;
  font: 400 clamp(36px, 3.2vw, 52px)/1.28 "Songti SC","STSong",serif;
}

.fc-fit header > p:last-child {
  margin: 0;
  color: #687287;
  font-size: 15px;
  line-height: 1.9;
}

.fc-fit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.fc-fit-grid article {
  min-height: 190px;
  padding: 25px 23px;
  border: 1px solid rgba(103, 128, 177, .14);
  border-radius: 19px;
  background: rgba(255,255,255,.72);
  transition: transform .25s ease, box-shadow .25s ease;
}

.fc-fit-grid article:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 35px rgba(75, 96, 143, .10);
}

.fc-fit-grid span {
  color: #7482aa;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
}

.fc-fit-grid strong {
  display: block;
  margin: 22px 0 12px;
  color: #242e43;
  font-size: 19px;
}

.fc-fit-grid p {
  margin: 0;
  color: #727c8f;
  font-size: 12px;
  line-height: 1.78;
}

.fc-fit-note {
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid rgba(103,128,177,.16);
  color: #6e788b;
  font-size: 12px;
}

.fc-parameters-section {
  position: relative;
  margin-inline: -28px;
  padding: 58px 28px 48px;
  overflow: hidden;
  border-top: 0;
  border-radius: 30px;
  background:
    radial-gradient(circle at 90% 8%, rgba(78, 154, 197, .13), transparent 24%),
    radial-gradient(circle at 5% 70%, rgba(224, 169, 76, .12), transparent 25%),
    linear-gradient(145deg, #f3f8f8 0%, #faf9f4 53%, #f4f7fb 100%);
}

.fc-parameters-section > *,
.fc-parameter-console > *,
.fc-parameter-selector > * {
  min-width: 0;
}

.fc-parameters-section .fc-section-head {
  padding-inline: 20px;
}

.fc-parameters-visual {
  position: relative;
  border: 0;
  box-shadow: 0 26px 64px rgba(21, 48, 45, .12);
}

.fc-parameters-visual img {
  aspect-ratio: 16 / 7.2;
  object-fit: cover;
}

.fc-parameters-visual::after {
  content: "";
  position: absolute;
  inset: 52% 0 0;
  background: linear-gradient(180deg, transparent, rgba(8, 22, 22, .58));
  pointer-events: none;
}

.fc-parameters-visual figcaption {
  position: absolute;
  z-index: 2;
  right: 32px;
  bottom: 26px;
  display: grid;
  grid-template-columns: auto auto;
  gap: 0 11px;
  align-items: end;
  color: #fff;
}

.fc-parameters-visual figcaption span {
  grid-row: 1 / 3;
  font: 400 68px/.9 "Songti SC","STSong",serif;
}

.fc-parameters-visual figcaption strong {
  font-size: 18px;
}

.fc-parameters-visual figcaption small {
  color: rgba(255,255,255,.68);
  font-size: 10px;
  letter-spacing: .12em;
}

.fc-parameter-console {
  --param-tone: #d7ad55;
  display: grid;
  grid-template-columns: minmax(420px, .78fr) minmax(0, 1.22fr);
  gap: 20px;
  padding: 20px;
  border: 1px solid rgba(103, 122, 170, .14);
  border-radius: 30px;
  background:
    radial-gradient(circle at 92% 4%, rgba(117, 174, 255, .12), transparent 26%),
    radial-gradient(circle at 8% 96%, rgba(203, 151, 255, .10), transparent 28%),
    rgba(255,255,255,.78);
  box-shadow: 0 28px 80px rgba(70, 88, 132, .10);
  backdrop-filter: blur(22px);
}

.fc-parameter-selector {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.fc-parameter-selector button {
  --button-tone: #d7ad55;
  position: relative;
  display: grid;
  align-content: space-between;
  min-height: 128px;
  padding: 17px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--button-tone) 30%, white);
  border-radius: 18px;
  color: #222a3c;
  text-align: left;
  background:
    radial-gradient(circle at 90% 8%, color-mix(in srgb, var(--button-tone) 32%, transparent), transparent 52%),
    linear-gradient(145deg, color-mix(in srgb, var(--button-tone) 16%, white), rgba(247,249,253,.92));
  cursor: pointer;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.fc-parameter-selector button:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--button-tone) 62%, white);
  box-shadow: 0 13px 28px color-mix(in srgb, var(--button-tone) 18%, transparent);
}

.fc-parameter-selector button.is-active {
  color: #1d2638;
  border-color: color-mix(in srgb, var(--button-tone) 72%, white);
  background:
    radial-gradient(circle at 88% 10%, color-mix(in srgb, var(--button-tone) 42%, transparent), transparent 50%),
    linear-gradient(135deg, color-mix(in srgb, var(--button-tone) 32%, white), rgba(246,249,255,.94));
  box-shadow:
    0 18px 40px color-mix(in srgb, var(--button-tone) 28%, transparent),
    inset 4px 0 0 color-mix(in srgb, var(--button-tone) 90%, #7585ef);
}

.fc-parameter-selector button span {
  color: color-mix(in srgb, var(--button-tone) 88%, #394156);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .14em;
}

.fc-parameter-selector button.is-active span {
  color: color-mix(in srgb, var(--button-tone) 76%, #5863b9);
}

.fc-parameter-selector button.is-active small { color: #657087; }

.fc-parameter-selector button strong {
  align-self: end;
  font-size: 18px;
  line-height: 1.25;
}

.fc-parameter-selector button small {
  color: #5e6980;
  font-size: 10px;
}

.fc-parameter-selector .parameter-humidity { --button-tone: #5597c0; }
.fc-parameter-selector .parameter-dewpoint { --button-tone: #4e9fc1; }
.fc-parameter-selector .parameter-air-speed { --button-tone: #51aaa0; }
.fc-parameter-selector .parameter-co2 { --button-tone: #7774a9; }
.fc-parameter-selector .parameter-pm { --button-tone: #688f9e; }
.fc-parameter-selector .parameter-tvoc { --button-tone: #cf9948; }
.fc-parameter-selector .parameter-radon { --button-tone: #c67665; }
.fc-parameter-selector .parameter-noise { --button-tone: #688b70; }

.fc-parameter-stage {
  position: relative;
  min-height: 404px;
  padding: 44px 46px;
  overflow: hidden;
  border: 1px solid rgba(114, 139, 194, .18);
  border-radius: 22px;
  background:
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--param-tone) 20%, transparent), transparent 30%),
    radial-gradient(circle at 12% 92%, rgba(127, 117, 255, .10), transparent 30%),
    linear-gradient(145deg, rgba(255,255,255,.96), rgba(239,245,253,.90));
  color: #20283a;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.94),
    0 20px 50px rgba(79, 100, 148, .09);
}

.fc-parameter-stage::after {
  content: "";
  position: absolute;
  right: -55px;
  bottom: -70px;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(114, 139, 194, .12);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(111, 144, 213, .035), 0 0 0 84px rgba(143, 118, 222, .025);
}

.fc-parameter-stage::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  left: -32%;
  width: 28%;
  height: 100%;
  opacity: .55;
  background: linear-gradient(90deg, transparent, rgba(125, 183, 255, .14), transparent);
  transform: skewX(-16deg);
  animation: fc-data-scan 6.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes fc-data-scan {
  0%, 20% { left: -32%; opacity: 0; }
  35% { opacity: .55; }
  72%, 100% { left: 112%; opacity: 0; }
}

.fc-parameter-stage article {
  position: relative;
  z-index: 1;
  animation: fc-param-enter .38s ease both;
}

.fc-parameter-stage article[hidden] { display: none; }

@keyframes fc-param-enter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fc-parameter-stage header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px 20px;
  align-items: end;
}

.fc-parameter-stage header span {
  grid-column: 1 / -1;
  color: color-mix(in srgb, var(--param-tone) 72%, #6975cf);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .16em;
}

.fc-parameter-stage header h3 {
  margin: 0;
  font: 400 clamp(30px, 2.4vw, 44px)/1.25 "Songti SC","STSong",serif;
}

.fc-parameter-stage header em {
  color: #717b91;
  font-size: 12px;
  font-style: normal;
}

.fc-param-primary,
.fc-param-bands {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.fc-param-primary b,
.fc-param-bands b {
  padding: 7px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--param-tone) 12%, white);
  color: color-mix(in srgb, var(--param-tone) 72%, #243735);
  font-size: 11px;
  font-weight: 760;
}

.fc-parameter-stage .fc-param-primary,
.fc-parameter-stage .fc-param-bands {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.fc-parameter-stage .fc-param-primary b,
.fc-parameter-stage .fc-param-bands b {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 84px;
  padding: 35px 18px 16px;
  overflow: hidden;
  color: #39445c;
  border: 1px solid color-mix(in srgb, var(--param-tone) 24%, white);
  border-radius: 16px;
  background:
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--param-tone) 26%, transparent), transparent 48%),
    rgba(255,255,255,.72);
  font-size: 14px;
  box-shadow: 0 10px 24px color-mix(in srgb, var(--param-tone) 10%, transparent);
}

.fc-parameter-stage .fc-param-primary b::before,
.fc-parameter-stage .fc-param-bands b::before {
  content: "参考区间";
  position: absolute;
  top: 13px;
  left: 18px;
  color: color-mix(in srgb, var(--param-tone) 72%, #6470ba);
  font-size: 8px;
  font-weight: 850;
  letter-spacing: .14em;
}

.fc-param-scale {
  position: relative;
  height: 8px;
  margin: 2px 0 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, #75b58b 0 40%, #e1b35a 40% 72%, #d37262 72% 100%);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.12);
}

.fc-param-scale i {
  position: absolute;
  left: 43%;
  top: 50%;
  width: 12px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #173a36;
  box-shadow: 0 2px 7px rgba(0,0,0,.26);
  transform: translate(-50%, -50%);
}

.scale-moisture i { left: 48%; }
.scale-dewpoint i { left: 58%; }
.scale-speed i { left: 36%; }
.scale-co2 i { left: 44%; }
.scale-pm i { left: 31%; }
.scale-tvoc i { left: 45%; }
.scale-radon i { left: 28%; }
.scale-noise i { left: 34%; }

.fc-parameter-stage .fc-param-scale {
  display: none;
}

.fc-param-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid rgba(104, 126, 176, .16);
}

.fc-param-copy p {
  margin: 0;
  color: #626d82;
  font-size: 14px;
  line-height: 1.82;
}

.fc-param-copy strong {
  display: block;
  margin-bottom: 7px;
  color: #242d42;
  font-size: 13px;
}

.fc-parameter-reading {
  display: grid;
  grid-template-columns: minmax(220px, .45fr) minmax(0, 1.55fr);
  gap: 28px;
  align-items: center;
  padding: 28px 32px;
  border-radius: 20px;
  border: 1px solid rgba(110, 137, 191, .16);
  background:
    radial-gradient(circle at 88% 20%, rgba(117, 176, 255, .16), transparent 28%),
    linear-gradient(120deg, rgba(250,252,255,.96), rgba(238,242,251,.92));
  color: #222b40;
  box-shadow: 0 18px 45px rgba(74, 96, 145, .08);
}

.fc-parameter-reading strong {
  font: 400 27px/1.35 "Songti SC","STSong",serif;
}

.fc-parameter-reading p {
  margin: 0;
  color: #657086;
  font-size: 13px;
  line-height: 1.85;
}

.fc-parameter-source {
  margin-inline: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(14,95,90,.13);
}

/* A restrained folded corner makes every expandable card legible as an action. */
.fc-click-card {
  --fold-tone: #639f99;
}

html body.fc-page .fc-outcomes .fc-click-card { --fold-tone: var(--outcome); }
html body.fc-page .fc-delivery-selector .fc-click-card { --fold-tone: var(--delivery-tone); }
html body.fc-page .fc-parameter-selector .fc-click-card { --fold-tone: var(--button-tone); }
html body.fc-page .fc-proof-list .fc-click-card { --fold-tone: var(--proof-accent); }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(1) { --fold-tone: #43aaa2; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(2) { --fold-tone: #5797ce; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(3) { --fold-tone: #68aa76; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(4) { --fold-tone: #4f9d76; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(5) { --fold-tone: #7b79b4; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(6) { --fold-tone: #d1a24e; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(7) { --fold-tone: #cd7d70; }
html body.fc-page .fc-value-spectrum .fc-click-card:nth-child(8) { --fold-tone: #b9913e; }

html body.fc-page .fc-click-card > .fc-fold-cue {
  position: absolute;
  z-index: 8;
  top: 0;
  right: 0;
  display: block;
  width: 34px;
  height: 34px;
  margin: 0;
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 0 18px 0 0;
  background:
    linear-gradient(135deg, rgba(255,255,255,.08) 0 48%, rgba(255,255,255,.9) 49% 54%, color-mix(in srgb, var(--fold-tone) 45%, white) 55% 100%);
  box-shadow: -5px 6px 13px color-mix(in srgb, var(--fold-tone) 17%, transparent);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: .84;
  pointer-events: none;
  transform-origin: 100% 0;
  transition: width .3s ease, height .3s ease, opacity .3s ease, filter .3s ease;
}

html body.fc-page .fc-click-card > .fc-fold-cue::before,
html body.fc-page .fc-click-card > .fc-fold-cue::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 10px;
  right: 7px;
  width: 9px;
  height: 1.5px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--fold-tone) 82%, #243548);
  transform-origin: center;
  transition: transform .3s ease, top .3s ease, right .3s ease;
}

html body.fc-page .fc-click-card > .fc-fold-cue::after {
  transform: rotate(90deg);
}

html body.fc-page .fc-click-card:hover > .fc-fold-cue,
html body.fc-page .fc-click-card:focus-visible > .fc-fold-cue {
  width: 42px;
  height: 42px;
  opacity: 1;
  filter: saturate(1.15) drop-shadow(-4px 7px 9px color-mix(in srgb, var(--fold-tone) 24%, transparent));
}

html body.fc-page .fc-click-card:hover > .fc-fold-cue::before,
html body.fc-page .fc-click-card:hover > .fc-fold-cue::after,
html body.fc-page .fc-click-card:focus-visible > .fc-fold-cue::before,
html body.fc-page .fc-click-card:focus-visible > .fc-fold-cue::after {
  top: 12px;
  right: 8px;
}

html body.fc-page .fc-click-card.is-selected > .fc-fold-cue,
html body.fc-page .fc-click-card.is-active > .fc-fold-cue {
  width: 42px;
  height: 42px;
  opacity: 1;
  filter: saturate(1.16);
}

html body.fc-page .fc-click-card.is-selected > .fc-fold-cue::after,
html body.fc-page .fc-click-card.is-active > .fc-fold-cue::after {
  transform: rotate(0deg);
}

html body.fc-page .fc-click-card.is-selected > .fc-fold-cue::before,
html body.fc-page .fc-click-card.is-active > .fc-fold-cue::before {
  transform: rotate(180deg);
}

@media (prefers-reduced-motion: reduce) {
  html body.fc-page .fc-click-card > .fc-fold-cue,
  html body.fc-page .fc-click-card > .fc-fold-cue::before,
  html body.fc-page .fc-click-card > .fc-fold-cue::after {
    transition: none;
  }
}

@media (max-width: 1180px) {
  .fc-system-compare,
  .fc-operation-boundary,
  .fc-case-record {
    grid-template-columns: 1fr;
  }
  .fc-fit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fc-delivery-console { grid-template-columns: 1fr; }
  .fc-delivery-selector { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .fc-delivery-selector button { min-height: 112px; }
  .fc-value-console,
  .fc-proof-console { grid-template-columns: 1fr; }
  .fc-parameter-console { grid-template-columns: 1fr; }
  .fc-parameter-selector { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .fc-parameter-selector button { min-height: 110px; }
}

@media (max-width: 760px) {
  .fc-hero-spectrum { gap: 9px 14px; }
  html body.fc-page .fc-hero { min-height: 720px; margin-top: 18px; border-radius: 22px; }
  html body.fc-page .fc-hero-track,
  html body.fc-page .fc-hero-slide { min-height: 720px; }
  html body.fc-page .fc-hero-visual,
  html body.fc-page .fc-hero-visual img { min-height: 720px; }
  html body.fc-page .fc-hero-visual img { object-position: 61% center; }
  html body.fc-page .fc-hero-visual::before {
    background: linear-gradient(180deg, rgba(7,14,14,.38), rgba(7,14,14,.25) 35%, rgba(7,14,14,.82) 73%, rgba(7,14,14,.94));
  }
  html body.fc-page .fc-hero-copy {
    align-self: end;
    width: auto;
    padding: 46px 24px 48px;
  }
  html body.fc-page .fc-hero h1 { font-size: 50px; }
  html body.fc-page .fc-hero-slide:first-child h1 {
    font-size: 42px;
    white-space: nowrap;
  }
  html body.fc-page .fc-hero h2 { font-size: 46px; }
  html body.fc-page .fc-hero-lead { font-size: 19px; }
  html body.fc-page .fc-hero-visual figcaption { display: none; }
  .fc-hero-controls { right: 22px; bottom: 18px; }
  html body.fc-page .fc-outcomes { grid-template-columns: 1fr; }
  html body.fc-page .fc-outcomes article,
  html body.fc-page .fc-outcomes article:nth-child(n) {
    grid-column: auto;
    min-height: 0;
  }
  html body.fc-page .fc-proof {
    padding: 30px 22px;
  }
  html body.fc-page .fc-proof-list {
    grid-template-columns: 1fr;
  }
  html body.fc-page .fc-proof-list button {
    min-height: 0;
  }
  html body.fc-page .fc-consult {
    min-height: 680px;
    padding: 42px 24px;
    background:
      linear-gradient(180deg, rgba(5,12,14,.38), rgba(5,12,14,.94) 62%),
      url("../images/residential-climate-assessment-premium-20260718.jpg") 68% center / cover no-repeat;
  }
  html body.fc-page .fc-consult > * {
    width: 100%;
  }
  .fc-case-reach {
    display: grid;
    padding: 22px;
  }
  #fc-science {
    margin-inline: -8px;
    padding: 38px 16px 34px;
    border-radius: 22px;
  }
  #fc-science .fc-section-head,
  #fc-science .fc-authority,
  #fc-science .fc-note { margin-inline: 0; padding-inline: 0; }
  .fc-science-copy { padding: 21px 20px 24px; }
  .fc-parameters-section {
    margin-inline: -8px;
    padding: 38px 16px 34px;
    border-radius: 22px;
  }
  .fc-parameters-section .fc-section-head { padding-inline: 0; }
  .fc-parameters-section .fc-section-head h2,
  .fc-parameters-section .fc-section-head > p:last-child {
    width: calc(100vw - 64px);
    max-width: calc(100vw - 64px);
    text-wrap: wrap;
  }
  .fc-parameters-visual img { aspect-ratio: 4 / 3; }
  .fc-parameters-visual figcaption { right: 18px; bottom: 16px; }
  .fc-parameters-visual figcaption span { font-size: 52px; }
  .fc-parameters-visual figcaption small { display: none; }
  .fc-parameter-console { padding: 10px; border-radius: 22px; }
  .fc-parameter-console,
  .fc-parameter-selector,
  .fc-parameter-stage { width: 100%; max-width: 100%; }
  .fc-parameter-selector { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
  .fc-parameter-selector button { min-height: 96px; padding: 12px 10px; border-radius: 14px; }
  .fc-parameter-selector button strong { font-size: 14px; }
  .fc-parameter-selector button small { font-size: 8px; }
  .fc-parameter-selector button small { overflow-wrap: anywhere; }
  .fc-parameter-stage { min-height: 0; padding: 30px 20px; border-radius: 17px; }
  .fc-parameter-stage header h3 { font-size: 28px; }
  .fc-param-copy { grid-template-columns: 1fr; gap: 20px; }
  .fc-parameter-reading { grid-template-columns: 1fr; padding: 24px 22px; }
  .fc-parameter-source { margin-inline: 0; }
  .fc-system-compare,
  .fc-operation-boundary,
  .fc-case-record,
  .fc-fit {
    width: calc(100vw - 48px);
    min-width: 0;
    max-width: calc(100vw - 48px);
    padding: 30px 22px;
    border-radius: 23px;
  }
  .fc-system-compare { margin: -8px 0 58px; }
  .fc-system-compare-grid { grid-template-columns: 1fr; }
  .fc-system-compare-grid article { padding: 24px 14px; }
  .fc-system-compare-grid article + article {
    border-top: 1px solid rgba(99,125,177,.16);
    border-left: 0;
  }
  .fc-operation-boundary ul,
  .fc-case-record-grid,
  .fc-fit-grid { grid-template-columns: 1fr; }
  .fc-case-record-grid span:nth-child(odd) { border-right: 0; }
  .fc-fit { margin-top: 82px; }
  .fc-fit h2 { font-size: 31px; }
  .fc-fit-grid article { min-height: 0; }
  .fc-delivery-console {
    width: calc(100vw - 48px);
    max-width: calc(100vw - 48px);
    padding: 10px;
    border-radius: 22px;
  }
  .fc-delivery-selector { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; }
  .fc-delivery-selector button { min-height: 100px; padding: 13px 11px; border-radius: 14px; }
  .fc-delivery-selector strong { font-size: 15px; }
  .fc-delivery-selector small { font-size: 8px; }
  .fc-delivery-stage { min-height: 0; padding: 30px 20px; border-radius: 17px; }
  .fc-delivery-stage header { grid-template-columns: 1fr; }
  .fc-delivery-stage header h3 { font-size: 30px; }
  .fc-delivery-stage header em { margin-top: 2px; }
  .fc-delivery-detail { grid-template-columns: 1fr; }
  .fc-delivery-detail > div { padding: 22px 0; }
  .fc-delivery-detail > div + div {
    border-top: 1px solid rgba(104,126,176,.16);
    border-left: 0;
  }
  .fc-value-console,
  .fc-proof-console {
    width: calc(100vw - 48px);
    max-width: calc(100vw - 48px);
    padding: 10px;
    border-radius: 22px;
  }
  .fc-value-console .fc-value-spectrum { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fc-value-console .fc-value-spectrum article { min-height: 118px; }
  .fc-topic-stage { min-height: 0; padding: 30px 20px; border-radius: 17px; }
  .fc-topic-stage h3 { font-size: 28px; }
  .fc-topic-stage dl { grid-template-columns: 1fr; }
  .fc-topic-stage dl > div { padding: 20px 0; }
  .fc-topic-stage dl > div + div {
    border-top: 1px solid rgba(104,126,176,.16);
    border-left: 0;
  }
  .fc-outcome-stage {
    width: calc(100vw - 48px);
    max-width: calc(100vw - 48px);
  }
}

@media (max-width: 1180px) {
  .fc-air-backbone {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .fc-doas-intro {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .fc-air-soul-head,
  .fc-air-backbone,
  .fc-doas-intro,
  .fc-route-head {
    width: 100%;
    max-width: 100%;
  }
  .fc-diagram {
    overflow: hidden;
  }
  .fc-diagram img {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
  }
  .fc-air-backbone {
    grid-template-columns: 1fr;
    margin-block: 32px 46px;
    padding: 18px;
    border-radius: 24px;
  }
  .fc-air-backbone article {
    min-height: 0;
    padding: 22px 20px;
  }
  .fc-air-backbone article span {
    margin-bottom: 18px;
  }
  .fc-doas-intro {
    gap: 30px;
    margin-bottom: 58px;
    padding: 30px 22px;
    border-radius: 24px;
  }
  .fc-doas-capabilities {
    grid-template-columns: 1fr;
  }
  .fc-doas-capabilities article {
    padding: 24px 0;
  }
  .fc-doas-capabilities article + article {
    border-top: 1px solid rgba(14, 95, 90, .15);
    border-left: 0;
  }
}