.page-contact {
  background: var(--space-blue);
  color: var(--cream);
  overflow-x: clip;
}

.page-contact .ct-hero {
  position: relative;
  padding: clamp(22px, 4vw, 46px) 0 clamp(36px, 5.5vw, 68px);
  isolation: isolate;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: -16%;
  right: -8%;
  width: clamp(240px, 48vw, 640px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(140deg, rgba(62, 231, 209, 0.17), rgba(62, 231, 209, 0) 62%);
  clip-path: polygon(100% 0, 12% 0, 100% 88%);
  pointer-events: none;
  z-index: -1;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(34%, 380px);
  height: 3px;
  background: linear-gradient(90deg, var(--amber), rgba(255, 166, 61, 0));
  pointer-events: none;
}

.page-contact .ct-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 44px);
  align-items: start;
}

.page-contact .ct-hero h1 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-size: clamp(27px, 4.6vw, 50px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--cream);
}

.page-contact .ct-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-contact .ct-hero .lede {
  margin: 0;
  max-width: 46ch;
  color: var(--cream);
}

.page-contact .ct-brief {
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--radius-xl);
  background: linear-gradient(155deg, rgba(14, 23, 48, 0.96), rgba(6, 11, 26, 0.92));
  border: 1px solid var(--line-blue);
}

.page-contact .ct-brief-tag {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .ct-brief-hours {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 14px;
  flex-wrap: wrap;
}

.page-contact .ct-brief-dash {
  color: var(--slate);
  font-size: 18px;
  line-height: 1;
}

.page-contact .ct-brief-note {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .ct-brief-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line-blue);
  padding-top: 14px;
}

.page-contact .ct-brief-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

.page-contact .ct-brief-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--cyan);
}

/* ---------- 01 合作方向 ---------- */

.page-contact .ct-tracks-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: end;
}

.page-contact .ct-tracks-head .section-note {
  max-width: 46ch;
}

.page-contact .ct-tracks-figure {
  margin: 0;
}

.page-contact .ct-tracks-figure .figure-frame {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
}

.page-contact .ct-track-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(24px, 3.5vw, 42px);
}

.page-contact .ct-track {
  --ct-accent: var(--cyan);
  position: relative;
  padding: clamp(20px, 2.4vw, 28px);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(14, 23, 48, 0.95), rgba(6, 11, 26, 0.9));
  border: 1px solid var(--line-blue);
  border-top: 3px solid var(--ct-accent);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .ct-track-amber {
  --ct-accent: var(--amber);
}

.page-contact .ct-track-clay {
  --ct-accent: var(--clay);
}

.page-contact .ct-track-no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ct-accent);
}

.page-contact .ct-track-title {
  margin: 0 0 12px;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .ct-track-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .ct-track-how {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-blue);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan-glow);
  max-height: 240px;
  overflow: hidden;
  opacity: 1;
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease),
    margin-top var(--dur) var(--ease), padding-top var(--dur) var(--ease);
}

/* ---------- 02 直接联系 ---------- */

.page-contact .ct-reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .ct-card {
  --ct-edge: var(--line-blue);
  padding: clamp(20px, 2.4vw, 28px);
  border-radius: var(--radius-xl);
  background: var(--hull-blue);
  border: 1.5px solid var(--ct-edge);
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-card-cyan {
  --ct-edge: rgba(62, 231, 209, 0.72);
}

.page-contact .ct-card-amber {
  --ct-edge: rgba(255, 166, 61, 0.72);
}

.page-contact .ct-card-clay {
  --ct-edge: rgba(201, 123, 90, 0.78);
}

.page-contact .ct-card:hover {
  background: rgba(14, 23, 48, 0.86);
}

.page-contact .ct-card-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-contact .ct-card-value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--cream);
  line-height: 1.45;
  word-break: break-word;
}

.page-contact .ct-card-mail {
  font-size: clamp(14px, 1.8vw, 17px);
  word-break: break-all;
}

.page-contact .ct-card-tel {
  font-size: clamp(24px, 3.4vw, 34px);
  color: var(--amber);
  letter-spacing: -0.01em;
}

.page-contact .ct-card-addr {
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.7;
}

.page-contact .ct-card-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 03 属地 ---------- */

.page-contact .ct-place-figure {
  margin: clamp(22px, 3vw, 34px) 0 clamp(20px, 2.6vw, 30px);
}

.page-contact .ct-place-figure .figure-frame {
  aspect-ratio: 8 / 3;
  border-radius: var(--radius-lg);
}

.page-contact .ct-place-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--line-blue);
  border: 1px solid var(--line-blue);
}

.page-contact .ct-place-item {
  padding: clamp(16px, 2vw, 22px);
  background: var(--hull-blue);
}

.page-contact .ct-place-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-contact .ct-place-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.45;
  color: var(--cream);
}

/* ---------- 备案色带 ---------- */

.page-contact .ct-legal {
  margin-top: clamp(38px, 5.5vw, 72px);
  padding: clamp(18px, 2.4vw, 26px) 0;
  background: var(--hull-blue);
  border-top: 1px solid var(--line-blue);
  border-bottom: 1px solid var(--line-blue);
}

.page-contact .ct-legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
}

.page-contact .ct-legal-label {
  margin: 0;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-blue);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .ct-legal-icp {
  position: relative;
  margin: 0;
  cursor: help;
  outline-offset: 4px;
}

.page-contact .ct-legal-num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--cream);
  border-bottom: 1px dashed var(--line-blue);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-legal-icp:hover .ct-legal-num,
.page-contact .ct-legal-icp:focus .ct-legal-num {
  color: var(--cyan-glow);
  border-color: var(--cyan);
}

.page-contact .ct-legal-tip {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: max-content;
  max-width: min(280px, 74vw);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--space-blue);
  border: 1px solid var(--cyan);
  color: var(--cyan-glow);
  font-size: 12px;
  line-height: 1.6;
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-legal-icp:hover .ct-legal-tip,
.page-contact .ct-legal-icp:focus .ct-legal-tip {
  opacity: 1;
  transform: translateY(0);
}

.page-contact .ct-legal-meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 04 延伸阅读 ---------- */

.page-contact .ct-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 18px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .ct-next-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.2vw, 24px) clamp(18px, 2.2vw, 26px);
  padding-right: 52px;
  border-radius: var(--radius-lg);
  background: rgba(14, 23, 48, 0.6);
  border: 1px solid var(--line-blue);
  text-decoration: none;
  color: var(--cream);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-contact .ct-next-card:hover,
.page-contact .ct-next-card:focus-visible {
  border-color: var(--cyan);
  background: rgba(14, 23, 48, 0.95);
  transform: translateY(-2px);
}

.page-contact .ct-next-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .ct-next-tag {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .ct-next-title {
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.4;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .ct-next-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .ct-next-go {
  position: absolute;
  right: clamp(18px, 2.2vw, 26px);
  top: clamp(18px, 2.2vw, 24px);
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--amber);
  transition: transform var(--dur) var(--ease);
}

.page-contact .ct-next-card:hover .ct-next-go {
  transform: translateX(4px);
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-contact .ct-reach-grid,
  .page-contact .ct-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-place-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-contact .ct-track-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero-inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }

  .page-contact .ct-tracks-head {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .ct-reach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-place-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 780px) and (hover: hover) {
  .page-contact .ct-track-how {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
  }

  .page-contact .ct-track:hover .ct-track-how,
  .page-contact .ct-track:focus-within .ct-track-how {
    max-height: 240px;
    opacity: 1;
    margin-top: 14px;
    padding-top: 14px;
    border-top-color: var(--line-blue);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-next-card,
  .page-contact .ct-next-go,
  .page-contact .ct-legal-tip,
  .page-contact .ct-track-how {
    transition: none;
  }

  .page-contact .ct-next-card:hover {
    transform: none;
  }
}