:root {
  --concept-red: #ef2d2f;
  --concept-dark: #111317;
  --concept-text: #171a20;
  --concept-muted: #5d6572;
  --concept-line: #e5e8ed;
  --concept-soft: #f4f6f8;
  --concept-shell: min(1160px, calc(100% - 32px));
}

body.as69-service-concept-page {
  background: #fff;
  color: var(--concept-text);
}

.as69-service-concept {
  overflow: hidden;
  background: #fff;
  font-family: inherit;
}

.concept-shell {
  width: var(--concept-shell);
  margin: 0 auto;
}

.concept-hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: stretch;
  color: #fff;
  isolation: isolate;
  overflow: hidden;
  background: #0d0f14 var(--concept-bg) center / cover no-repeat;
}

.concept-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: rgba(7, 10, 16, .12);
  pointer-events: none;
}

.concept-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: 0;
  height: 56px;
  background: rgba(239, 45, 47, .05);
  opacity: 1;
}

.concept-hero .concept-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 70px 0 86px;
}

.concept-breadcrumb {
  position: absolute;
  top: 28px;
  left: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
}

.concept-breadcrumb a {
  color: rgba(255, 255, 255, .86);
  text-decoration: none;
}

.concept-breadcrumb a:hover {
  color: #fff;
}

.concept-hero__content {
  max-width: 1040px;
}

.concept-kicker,
.concept-section-tag {
  margin: 0 0 14px;
  color: var(--concept-red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.concept-hero h1 {
  margin: 0;
  max-width: 1040px;
  color: #fff;
  font-size: clamp(44px, 6.2vw, 78px);
  line-height: .98;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.concept-hero h1 span,
.concept-intro h2 span {
  color: var(--concept-red);
}

.concept-hero__lead {
  max-width: 690px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, .9);
  font-size: 18px;
  line-height: 1.7;
}

.concept-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 760px;
  margin-top: 42px;
}

.concept-hero__facts span {
  position: relative;
  padding-left: 18px;
  color: rgba(255, 255, 255, .92);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.concept-hero__facts span::before {
  content: "";
  position: absolute;
  left: 0;
  top: .52em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--concept-red);
}

.concept-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.concept-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 900;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
}

.concept-btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

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

.concept-btn--primary:hover {
  background: #d91e20;
  color: #fff;
}

.concept-btn--ghost {
  border-color: rgba(255, 255, 255, .44);
  color: #fff;
  background: rgba(255, 255, 255, .08);
}

.concept-btn--ghost:hover {
  border-color: #fff;
  color: #fff;
}

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

.concept-btn--phone {
  border-color: #fff;
  background: #fff;
  color: #111317;
  box-shadow: 0 14px 28px rgba(255, 255, 255, .12);
}

.concept-btn--phone:hover {
  border-color: #fff;
  background: #fff;
  color: #111317;
}

.concept-intro,
.concept-services,
.concept-symptoms,
.concept-price,
.concept-cta {
  padding: 72px 0;
}

.concept-intro {
  background: #fff;
}

.concept-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(360px, 1fr);
  gap: 56px;
  align-items: center;
}

.concept-intro__copy h2,
.concept-section-head h2,
.concept-symptoms h2,
.concept-cta h2 {
  margin: 0;
  color: var(--concept-text);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.concept-intro__copy p:not(.concept-section-tag),
.concept-symptoms p,
.concept-cta p {
  margin: 22px 0 0;
  color: var(--concept-muted);
  font-size: 16px;
  line-height: 1.75;
}

.concept-intro__media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 6px;
  background: #d8dde3;
}

.concept-intro__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.concept-feature-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 36px;
  border: 1px solid var(--concept-line);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
}

.concept-feature {
  min-height: 148px;
  padding: 24px;
  border-right: 1px solid var(--concept-line);
}

.concept-feature:last-child {
  border-right: 0;
}

.concept-feature h3 {
  margin: 0 0 12px;
  color: var(--concept-text);
  font-size: 14px;
  line-height: 1.25;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-feature p {
  margin: 0;
  color: var(--concept-muted);
  font-size: 13px;
  line-height: 1.6;
}

.concept-services,
.concept-price {
  background: var(--concept-soft);
}

.concept-section-head {
  max-width: 830px;
  margin-bottom: 34px;
}

.concept-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--concept-line);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
}

.concept-service-card {
  min-height: 286px;
  padding: 30px;
  border-right: 1px solid var(--concept-line);
  border-bottom: 1px solid var(--concept-line);
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.concept-service-card:nth-child(3n) {
  border-right: 0;
}

.concept-service-card:nth-last-child(-n+3) {
  border-bottom: 0;
}

.concept-service-card--photo {
  color: #fff;
  background:
    linear-gradient(180deg, rgba(14, 16, 20, .42), rgba(14, 16, 20, .92)),
    var(--card-photo) center / cover no-repeat;
}

.concept-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 38px;
  margin-bottom: 20px;
  color: var(--concept-red);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.concept-service-card h3 {
  margin: 0 0 13px;
  color: var(--concept-text);
  font-size: 16px;
  line-height: 1.25;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-service-card p {
  margin: 0;
  color: var(--concept-muted);
  font-size: 14px;
  line-height: 1.65;
}

.concept-service-card--photo h3,
.concept-service-card--photo p {
  color: #fff;
}

.concept-service-card--contact {
  background: #111317;
  color: #fff;
}

.concept-service-card--contact h3,
.concept-service-card--contact p {
  color: #fff;
}

.concept-contact-mini {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.concept-contact-mini li {
  position: relative;
  padding-left: 16px !important;
  color: rgba(255, 255, 255, .82);
  font-size: 13px;
  line-height: 1.45;
  list-style: none !important;
  background: none !important;
  text-transform: none;
}

.concept-contact-mini li::marker {
  content: "" !important;
}

.concept-contact-mini li::before {
  content: "" !important;
  position: absolute !important;
  left: 0 !important;
  top: .58em !important;
  width: 6px !important;
  height: 6px !important;
  border-radius: 50% !important;
  background: var(--concept-red) !important;
}

.concept-contact-mini li::after {
  content: none !important;
  display: none !important;
}

.concept-contact-mini strong {
  color: #fff;
}

.concept-contact-mini a {
  color: #fff;
  text-decoration: none;
}

.concept-service-card .concept-card-action {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  margin-top: 26px;
  padding: 0 16px;
  border-radius: 4px;
  background: var(--concept-red);
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  text-decoration: none;
}

.concept-symptoms {
  background: #fff;
}

.concept-symptoms__grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, 1fr);
  gap: 54px;
  align-items: start;
}

.concept-note-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0 !important;
  overflow: hidden;
  list-style: none !important;
}

.concept-note-list li {
  position: relative;
  min-height: 58px;
  padding: 17px 20px 17px 46px;
  border: 1px solid var(--concept-line);
  border-radius: 6px;
  background: #fff;
  color: var(--concept-text);
  font-size: 15px;
  line-height: 1.45;
  overflow: hidden;
  list-style: none !important;
  background-image: none !important;
}

.concept-note-list li::marker {
  content: "" !important;
}

.concept-note-list li::before {
  content: "" !important;
  position: absolute;
  left: 20px;
  top: 25px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--concept-red);
}

.concept-note-list li::after {
  content: none !important;
  display: none !important;
}

.concept-price-table {
  display: grid;
  grid-template-columns: minmax(260px, 1.05fr) minmax(210px, .55fr) minmax(320px, 1.35fr);
  overflow: hidden;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
}

.concept-price-row {
  display: contents;
}

.concept-price-group {
  grid-column: 1 / -1;
  padding: 17px 22px;
  background: #101114;
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.3;
}

.concept-price-cell {
  min-width: 0;
  min-height: 64px;
  padding: 18px 22px;
  border-top: 1px solid var(--concept-line);
  display: flex;
  align-items: center;
  color: var(--concept-text);
  font-size: 15px;
  line-height: 1.45;
}

.concept-price-group + .concept-price-cell {
  border-top: 0;
}

.concept-price-cell--label {
  font-weight: 700;
}

.concept-price-cell--price {
  color: var(--concept-red);
  font-weight: 900;
  white-space: normal;
  overflow-wrap: anywhere;
}

.concept-price-cell--note {
  color: var(--concept-muted);
  min-width: 0;
  overflow-wrap: anywhere;
}


@media (max-width: 991px) {
  .concept-price-table {
    display: block;
  }

  .concept-price-row {
    display: block;
  }

  .concept-price-cell {
    min-height: 0;
    padding: 7px 18px;
    border-top: 0;
    display: block;
  }

  .concept-price-cell--label {
    padding-top: 18px;
    font-size: 16px;
  }

  .concept-price-cell--price {
    font-size: 17px;
  }

  .concept-price-cell--note {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--concept-line);
  }
}

.concept-price-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: -10px 0 24px;
}

.concept-price-tabs button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 20px;
  border: 1px solid var(--concept-line);
  border-radius: 999px;
  background: #fff;
  color: var(--concept-text);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-price-tabs .is-active {
  border-color: var(--concept-red);
  background: var(--concept-red);
  color: #fff;
}

.concept-price-tabs button:focus-visible {
  outline: 3px solid rgba(239, 45, 47, .28);
  outline-offset: 2px;
}

.concept-price-row.is-hidden {
  display: none !important;
}

.concept-faq {
  padding: 72px 0;
  background: #fff;
}

.concept-faq__panel {
  padding: 40px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 82% 10%, rgba(239, 45, 47, .26), transparent 32%),
    linear-gradient(110deg, #111317 0%, #101114 58%, #3d080b 100%);
  color: #fff;
}

.concept-faq__head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.concept-faq__head h2 {
  max-width: 720px;
  margin: 0;
  color: #fff;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.05;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-faq__head > span {
  color: rgba(255, 255, 255, .5);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .12em;
}

.concept-faq__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.concept-faq details {
  border-radius: 8px;
  background: #fff;
  color: var(--concept-text);
  overflow: hidden;
}

.concept-faq summary {
  position: relative;
  min-height: 72px;
  display: flex;
  align-items: center;
  padding: 18px 74px 18px 22px;
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.25;
  text-transform: uppercase;
  list-style: none;
}

.concept-faq summary::-webkit-details-marker {
  display: none;
}

.concept-faq summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 42px;
  height: 42px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: #101114;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  line-height: 1;
}

.concept-faq details[open] summary::after {
  content: "-";
}

.concept-faq details p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--concept-muted);
  font-size: 15px;
  line-height: 1.65;
}

.concept-cta {
  background: var(--concept-dark);
  color: #fff;
}

.concept-cta__inner {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  align-items: center;
}

.concept-cta h2,
.concept-cta p {
  color: #fff;
}

.concept-cta p {
  max-width: 760px;
  color: rgba(255, 255, 255, .78);
}

.concept-cta .concept-actions {
  flex: 0 0 auto;
  margin-top: 0;
}

.concept-related {
  padding: 72px 0;
  background: #fff;
}

.concept-related--services {
  background: #fff;
}

.concept-related--articles {
  padding-top: 64px;
  padding-bottom: 82px;
  background: #fff;
}

.concept-section-head p:not(.concept-section-tag) {
  max-width: 860px;
  margin: 18px 0 0;
  color: var(--concept-muted);
  font-size: 16px;
  line-height: 1.7;
}

.concept-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.concept-link-grid--articles {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.concept-link-card {
  min-height: 140px;
  padding: 24px;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
  color: var(--concept-text);
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(16, 18, 22, .04);
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.concept-link-card:hover {
  transform: translateY(-2px);
  border-color: rgba(239, 45, 47, .42);
  color: var(--concept-text);
  text-decoration: none;
  box-shadow: 0 16px 34px rgba(16, 18, 22, .08);
}

.concept-link-card h3 {
  margin: 0 0 12px;
  color: var(--concept-text);
  font-size: 17px;
  line-height: 1.35;
  font-weight: 900;
}

.concept-link-card p {
  margin: 0;
  color: var(--concept-muted);
  font-size: 15px;
  line-height: 1.6;
}

@media (max-width: 991px) {
  .concept-hero {
    min-height: 590px;
    background: #0d0f14 var(--concept-bg) center / cover no-repeat;
  }

  .concept-hero__facts,
  .concept-feature-strip,
  .concept-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .concept-intro__grid,
  .concept-symptoms__grid {
    grid-template-columns: 1fr;
  }

  .concept-service-card:nth-child(3n) {
    border-right: 1px solid var(--concept-line);
  }

  .concept-service-card:nth-child(2n) {
    border-right: 0;
  }

  .concept-service-card:nth-last-child(-n+3) {
    border-bottom: 1px solid var(--concept-line);
  }

  .concept-service-card:nth-last-child(-n+2) {
    border-bottom: 0;
  }

  .concept-cta__inner {
    display: block;
  }

  .concept-cta .concept-actions {
    margin-top: 26px;
  }

  .concept-faq__grid,
  .concept-link-grid,
  .concept-link-grid--articles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --concept-shell: min(100% - 24px, 1160px);
  }

  .concept-hero {
    min-height: auto;
  }

  .concept-hero .concept-shell {
    padding: 86px 0 82px;
  }

  .concept-breadcrumb {
    top: 20px;
    font-size: 12px;
  }

  .concept-hero h1 {
    font-size: clamp(25px, 7vw, 28px);
  }

  .concept-hero h1 span {
    display: block;
  }

  .concept-hero__lead {
    margin-top: 20px;
    font-size: 15px;
    line-height: 1.65;
  }

  .concept-hero__facts,
  .concept-feature-strip,
  .concept-card-grid {
    grid-template-columns: 1fr;
  }

  .concept-hero__facts {
    gap: 10px;
    margin-top: 28px;
  }

  .concept-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .concept-btn {
    width: 100%;
  }

  .concept-intro,
  .concept-services,
  .concept-symptoms,
  .concept-price,
  .concept-faq,
  .concept-related,
  .concept-cta {
    padding: 48px 0;
  }

  .concept-intro__copy h2,
  .concept-section-head h2,
  .concept-symptoms h2,
  .concept-cta h2 {
    font-size: 29px;
  }

  .concept-feature,
  .concept-service-card {
    border-right: 0;
  }

  .concept-feature {
    min-height: auto;
    border-bottom: 1px solid var(--concept-line);
  }

  .concept-feature:last-child {
    border-bottom: 0;
  }

  .concept-service-card,
  .concept-service-card:nth-child(2n),
  .concept-service-card:nth-child(3n),
  .concept-service-card:nth-last-child(-n+2),
  .concept-service-card:nth-last-child(-n+3) {
    min-height: 246px;
    border-right: 0;
    border-bottom: 1px solid var(--concept-line);
  }

  .concept-service-card:last-child {
    border-bottom: 0;
  }

  .concept-price-table {
    display: block;
  }

  .concept-price-row {
    display: block;
  }

  .concept-price-group {
    padding: 15px 18px;
    font-size: 13px;
  }

  .concept-price-cell {
    min-height: 0;
    padding: 7px 18px;
    border-top: 0;
    display: block;
  }

  .concept-price-cell--label {
    padding-top: 18px;
    font-size: 16px;
  }

  .concept-price-cell--price {
    font-size: 17px;
  }

  .concept-price-cell--note {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--concept-line);
  }

  .concept-faq__panel {
    padding: 24px 16px;
  }

  .concept-faq__head {
    display: block;
    margin-bottom: 20px;
  }

  .concept-faq__head > span {
    display: none;
  }

  .concept-faq__head h2 {
    font-size: 27px;
  }

  .concept-faq__grid,
  .concept-link-grid,
  .concept-link-grid--articles {
    grid-template-columns: 1fr;
  }

  .concept-faq summary {
    min-height: 64px;
    padding: 16px 64px 16px 18px;
    font-size: 15px;
  }

  .concept-faq summary::after {
    right: 16px;
    width: 36px;
    height: 36px;
    font-size: 24px;
  }

  .concept-link-card {
    min-height: auto;
    padding: 20px;
  }
}

/* Collapse concept page additions */
.concept-related--quick {
  padding-top: 64px;
  padding-bottom: 64px;
  background: #fff;
}

.concept-content {
  padding: 72px 0;
  background: #fff;
}

.concept-content-flow {
  display: grid;
  gap: 14px;
  max-width: 980px;
}

.concept-content-title {
  margin: 22px 0 0;
  color: var(--concept-text);
  font-size: 26px;
  line-height: 1.15;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-content-title:first-child {
  margin-top: 0;
}

.concept-content-text {
  margin: 0;
  color: var(--concept-muted);
  font-size: 16px;
  line-height: 1.75;
}

.concept-content-bullet {
  position: relative;
  min-height: 48px;
  padding: 14px 18px 14px 44px;
  border: 1px solid var(--concept-line);
  border-radius: 6px;
  background: #fff;
  color: var(--concept-text);
  font-size: 15px;
  line-height: 1.55;
}

.concept-content-bullet::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--concept-red);
}

.concept-content-figure {
  margin: 6px 0 0;
}

.concept-content-figure img,
.concept-gallery-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.concept-content-figure img {
  max-height: 430px;
  border-radius: 6px;
}

.concept-content-figure figcaption,
.concept-gallery-card figcaption {
  margin-top: 10px;
  color: var(--concept-muted);
  font-size: 13px;
  line-height: 1.5;
}

.concept-gallery {
  padding: 72px 0;
  background: #fff;
}

.concept-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.concept-gallery-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
}

.concept-gallery-card img {
  aspect-ratio: 16 / 10;
}

.concept-gallery-card figcaption {
  padding: 0 18px 18px;
}

@media (max-width: 991px) {
  .concept-gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .concept-content,
  .concept-gallery,
  .concept-related--quick {
    padding: 48px 0;
  }

  .concept-content-title {
    font-size: 22px;
  }

  .concept-gallery-grid {
    grid-template-columns: 1fr;
  }
}

/* Engine diagnostics concept page additions */
.concept-steps,
.concept-content,
.concept-gallery {
  padding: 72px 0;
  background: #fff;
}

.concept-steps {
  background: var(--concept-soft);
}

.concept-step-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.concept-step-card {
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
}

.concept-step-card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 36px;
  margin-bottom: 22px;
  border-radius: 4px;
  background: var(--concept-red);
  color: #fff;
  font-size: 14px;
  font-weight: 900;
}

.concept-step-card h3,
.concept-case-card h3,
.concept-content-title {
  margin: 0 0 12px;
  color: var(--concept-text);
  font-size: 18px;
  line-height: 1.25;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-step-card p,
.concept-case-card p,
.concept-content-text {
  margin: 0;
  color: var(--concept-muted);
  font-size: 14px;
  line-height: 1.65;
}

.concept-content-flow {
  display: grid;
  gap: 14px;
  max-width: 980px;
}

.concept-content-title {
  margin-top: 22px;
  font-size: 26px;
}

.concept-content-title:first-child {
  margin-top: 0;
}

.concept-content-text {
  font-size: 16px;
  line-height: 1.75;
}

.concept-content-bullet {
  position: relative;
  min-height: 48px;
  padding: 14px 18px 14px 44px;
  border: 1px solid var(--concept-line);
  border-radius: 6px;
  background: #fff;
  color: var(--concept-text);
  font-size: 15px;
  line-height: 1.55;
}

.concept-content-bullet::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--concept-red);
}

.concept-cases {
  padding: 72px 0;
  background: var(--concept-soft);
}

.concept-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.concept-case-card {
  padding: 26px;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 26px rgba(16, 18, 22, .04);
}

.concept-case-field {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--concept-line);
}

.concept-case-field strong {
  display: block;
  margin-bottom: 6px;
  color: var(--concept-red);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.concept-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.concept-gallery-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
}

.concept-gallery-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.concept-gallery-card figcaption {
  padding: 14px 18px 18px;
  color: var(--concept-muted);
  font-size: 13px;
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .concept-step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 991px) {
  .concept-case-grid,
  .concept-gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .concept-steps,
  .concept-content,
  .concept-cases,
  .concept-gallery {
    padding: 48px 0;
  }

  .concept-step-grid,
  .concept-case-grid,
  .concept-gallery-grid {
    grid-template-columns: 1fr;
  }

  .concept-step-card {
    min-height: auto;
  }

  .concept-content-title {
    font-size: 22px;
  }
}

/* Compact service details UI, 2026-05-20 */
.concept-content-flow.is-packed {
  display: block;
  max-width: none;
}

.concept-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.concept-detail-card {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--concept-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(20, 24, 35, 0.06);
}

.concept-detail-card .concept-content-title {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.25;
  text-transform: none;
}

.concept-detail-card .concept-content-text {
  font-size: 15px;
  line-height: 1.65;
}

.concept-detail-card .concept-content-text + .concept-content-text {
  margin-top: 10px;
}

.concept-detail-card .concept-content-bullet {
  min-height: 0;
  padding: 10px 12px 10px 34px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1.45;
}

.concept-detail-card .concept-content-bullet + .concept-content-bullet {
  margin-top: 8px;
}

.concept-detail-card .concept-content-bullet::before {
  left: 15px;
  top: 17px;
  width: 7px;
  height: 7px;
}

.concept-detail-accordion-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.concept-detail-card--accordion {
  padding: 0;
  overflow: hidden;
}

.concept-detail-card--accordion > summary {
  position: relative;
  display: block;
  min-height: 58px;
  padding: 18px 54px 18px 22px;
  color: var(--concept-text);
  font-size: 18px;
  line-height: 1.25;
  font-weight: 900;
  cursor: pointer;
  list-style: none;
}

.concept-detail-card--accordion > summary::-webkit-details-marker {
  display: none;
}

.concept-detail-card--accordion > summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 28px;
  height: 28px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--concept-soft);
  color: var(--concept-red);
  font-size: 20px;
  line-height: 28px;
  text-align: center;
}

.concept-detail-card--accordion[open] > summary::after {
  content: "-";
}

.concept-detail-body {
  display: grid;
  gap: 8px;
  padding: 0 22px 22px;
}

.concept-detail-body .concept-content-text {
  margin-bottom: 6px;
}

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

@media (max-width: 640px) {
  .concept-detail-card {
    padding: 18px;
  }

  .concept-detail-card--accordion {
    padding: 0;
  }

  .concept-detail-card--accordion > summary {
    padding: 16px 50px 16px 18px;
    font-size: 16px;
  }

  .concept-detail-body {
    padding: 0 18px 18px;
  }
}