/* Chaoling project detail — editorial system page */

.cl-case {
  --cl-paper: #f4f2ed;
  --cl-ink: #141311;
  --cl-mute: rgba(20, 19, 17, 0.45);
  --cl-line: rgba(20, 19, 17, 0.12);
  background: var(--cl-paper);
  color: var(--cl-ink);
  overflow-x: clip;
}

.cl-case .nav-contact {
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: inherit;
  cursor: pointer;
}

.cl-wrap {
  width: min(1180px, calc(100% - 2 * clamp(1.25rem, 4vw, 3.25rem)));
  margin: 0 auto;
}

.cl-eyebrow {
  margin: 0 0 0.85rem;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cl-mute);
}

.cl-title {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
}

.cl-type {
  margin: 0.85rem 0 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cl-mute);
}

.cl-lead {
  margin: 1.25rem 0 0;
  max-width: 18em;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.45;
  font-weight: 520;
}

.cl-h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 560;
  letter-spacing: -0.015em;
}

.cl-hero {
  padding: clamp(5.5rem, 12vh, 7.5rem) 0 clamp(2.5rem, 5vh, 3.5rem);
}

.cl-hero__visual {
  margin: 2.25rem 0 0;
}

/* Unified shot frame system */
.cl-shot {
  margin: 0;
  overflow: hidden;
  border-radius: 10px;
  background: #ebe8e2;
  border: 1px solid rgba(20, 19, 17, 0.08);
  box-shadow: 0 16px 40px rgba(14, 13, 12, 0.08), 0 2px 8px rgba(14, 13, 12, 0.04);
}

.cl-shot img,
.cl-shot picture,
.cl-shot picture img {
  display: block;
  width: 100%;
  height: auto;
}

.cl-shot--phone {
  border-radius: 16px;
}

.cl-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
}

.cl-section {
  padding: clamp(3rem, 7vh, 4.5rem) 0;
  border-top: 1px solid var(--cl-line);
}

.cl-split__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
}

.cl-split__grid p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(20, 19, 17, 0.78);
  max-width: 28em;
}

/* Service flow */
.cl-flow__track {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.cl-flow__track li {
  flex: 1 1 7.5rem;
  min-width: 7.2rem;
  padding: 1rem 0.95rem;
  background: #fff;
  border: 1px solid var(--cl-line);
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
}

.cl-flow__track li span {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--cl-mute);
}

/* Xiaoling */
.cl-xiaoling__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.cl-xiaoling__card img {
  display: block;
  width: 100%;
  height: auto;
}

.cl-xiaoling__list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  border-top: 1px solid var(--cl-line);
}

.cl-xiaoling__list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--cl-line);
  font-size: 1.05rem;
}

/* Multi-device */
.cl-devices__stage {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 0.55fr));
  gap: 1.15rem 1.25rem;
  align-items: end;
}

.cl-devices__web,
.cl-devices__phone {
  margin: 0;
}

.cl-devices__web figcaption,
.cl-devices__phone figcaption {
  margin-top: 0.7rem;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cl-mute);
}

/* CTA */
.cl-cta__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  align-items: center;
}

.cl-btn {
  display: inline-flex;
  align-items: center;
  border: 0;
  background: var(--cl-ink);
  color: #f4f2ed;
  padding: 0.9rem 1.35rem;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.cl-btn:hover {
  opacity: 0.85;
}

.cl-next {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--cl-ink);
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.15rem;
}

.cl-next:hover {
  opacity: 0.65;
}

@media (max-width: 900px) {
  .cl-split__grid,
  .cl-xiaoling__grid,
  .cl-devices__stage {
    grid-template-columns: 1fr;
  }

  .cl-devices__stage {
    grid-template-columns: 1fr 1fr;
  }

  .cl-devices__web {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .cl-split__grid p,
  .cl-xiaoling__list li,
  .cl-flow__track li {
    font-size: 1.02rem;
  }

  .cl-devices__stage {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .cl-cta__inner {
    flex-direction: column;
    align-items: stretch;
  }

  .cl-btn {
    justify-content: center;
  }
}