.page-contact {
  --ct-pad: clamp(56px, 8vw, 112px);
  --ct-line: rgba(127, 240, 226, 0.24);
  --ct-line-solid: rgba(255, 255, 255, 0.14);
  background: var(--deep);
  color: var(--paper);
}

.page-contact .ct-section {
  padding: var(--ct-pad) 0;
}

/* ---------- 首屏海报带 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 95% at 86% 6%, rgba(20, 224, 200, 0.2), transparent 60%),
    linear-gradient(113deg, transparent 46%, rgba(122, 31, 61, 0.5) 46.2%, rgba(59, 42, 107, 0.34) 73%, transparent 73.2%);
}

.page-contact .ct-hero__shell {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero__eyebrow {
  margin: 24px 0 0;
  color: var(--cyan);
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
}

.page-contact .ct-hero__lede {
  margin: 22px 0 0;
  max-width: 46ch;
  color: rgba(245, 248, 251, 0.8);
}

.page-contact .ct-hero__stats {
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-hero__num {
  font-size: 28px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-contact .ct-hero__label {
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 通用栏目标题 ---------- */
.page-contact .ct-sechead {
  max-width: 780px;
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-contact .ct-sechead__note {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(245, 248, 251, 0.72);
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-dir__figure {
  margin: 0 0 clamp(28px, 4vw, 44px);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-dir__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .ct-track {
  border: 1px solid var(--ct-line);
  border-top: 2px solid var(--cyan);
  background: var(--navy);
}

.page-contact .ct-track--venue {
  border-top-color: var(--sand);
  background: linear-gradient(172deg, var(--wine) 0%, #4b1226 100%);
}

.page-contact .ct-track--brand {
  border-top-color: var(--mist);
  background: linear-gradient(172deg, var(--indigo) 0%, #241a45 100%);
}

.page-contact .ct-track__head {
  display: block;
  position: relative;
  padding: 22px 54px 22px 22px;
  cursor: pointer;
  list-style: none;
}

.page-contact .ct-track__head::-webkit-details-marker {
  display: none;
}

.page-contact .ct-track__head::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .ct-track[open] .ct-track__head::after {
  content: "–";
}

.page-contact .ct-track__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .ct-track__title {
  margin: 10px 0 0;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .ct-track__sub {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 248, 251, 0.7);
}

.page-contact .ct-track__body {
  padding: 18px 22px 26px;
  border-top: 1px solid var(--ct-line-solid);
}

.page-contact .ct-track__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(245, 248, 251, 0.84);
}

.page-contact .ct-track__body strong {
  color: var(--mist);
  font-weight: 700;
}

.page-contact .ct-track__link {
  display: inline-block;
  margin-top: 4px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 200, 0.5);
}

.page-contact .ct-track__link:hover,
.page-contact .ct-track__link:focus-visible {
  color: var(--sand);
  border-bottom-color: var(--sand);
}

/* ---------- 流程带 ---------- */
.page-contact .ct-flow {
  background: linear-gradient(180deg, var(--deep) 0%, #08203c 55%, var(--deep) 100%);
}

.page-contact .ct-flow__stage {
  position: relative;
}

.page-contact .ct-flow__path {
  display: none;
}

.page-contact .ct-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-step {
  position: relative;
  padding: 22px 20px 24px;
  background: rgba(14, 42, 77, 0.72);
  border: 1px solid var(--ct-line);
  border-left: 3px solid var(--cyan);
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.page-contact .ct-step:hover {
  transform: translateY(-4px);
  background: rgba(14, 42, 77, 0.96);
  border-color: var(--cyan);
}

.page-contact .ct-step__num {
  display: inline-block;
  padding: 3px 9px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--deep);
  background: var(--cyan);
}

.page-contact .ct-step__title {
  margin: 14px 0 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-step__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(245, 248, 251, 0.78);
}

.page-contact .ct-step__time {
  display: block;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--ct-line);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-contact .ct-flow__figure {
  margin: clamp(36px, 5vw, 60px) 0 0;
  border: 1px solid var(--ct-line);
}

/* ---------- 资料清单 ---------- */
.page-contact .ct-kit {
  background: var(--paper);
  color: var(--deep);
}

.page-contact .ct-kit .eyebrow {
  color: var(--wine);
}

.page-contact .ct-kit .section-title {
  color: var(--deep);
}

.page-contact .ct-kit .ct-sechead__note {
  color: var(--graphite);
}

.page-contact .ct-kit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .ct-kit__col {
  background: #ffffff;
  border: 1px solid var(--grid);
  padding: 24px 22px 26px;
}

.page-contact .ct-kit__col-title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--deep);
  border-bottom: 2px solid var(--cyan);
}

.page-contact .ct-kit__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-kit__list li {
  position: relative;
  padding: 10px 0 10px 30px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--graphite);
  border-bottom: 1px solid #e6ecf2;
}

.page-contact .ct-kit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--grid);
  background: var(--paper);
}

.page-contact .ct-kit__list li:last-child {
  border-bottom: 0;
}

.page-contact .ct-kit__foot {
  margin: 26px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

/* ---------- 合作方与共创 ---------- */
.page-contact .ct-partners {
  background: linear-gradient(158deg, var(--indigo) 0%, #1c1444 40%, var(--deep) 100%);
}

.page-contact .ct-partners__grid {
  column-gap: 28px;
}

.page-contact .ct-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .ct-partner {
  padding: 20px 20px 22px;
  background: rgba(6, 26, 51, 0.62);
  border: 1px solid var(--ct-line);
  border-left: 3px solid var(--mist);
}

.page-contact .ct-partner__tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--deep);
  background: var(--mist);
}

.page-contact .ct-partner__title {
  margin: 14px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .ct-partner__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(245, 248, 251, 0.78);
}

.page-contact .ct-cases {
  margin-top: 22px;
  padding: 22px 20px 24px;
  background: rgba(255, 106, 31, 0.08);
  border: 1px solid rgba(255, 178, 122, 0.36);
}

.page-contact .ct-cases__title {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 700;
  color: var(--sand);
}

.page-contact .ct-cases__list {
  margin: 0;
  padding: 0;
}

.page-contact .ct-cases__list dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .ct-cases__list dd {
  margin: 8px 0 18px;
  padding-left: 12px;
  border-left: 1px solid var(--ct-line);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 248, 251, 0.8);
}

.page-contact .ct-cases__list dd:last-of-type {
  margin-bottom: 20px;
}

.page-contact .ct-cases__btn {
  width: 100%;
  text-align: center;
}

/* ---------- 联系方式 ---------- */
.page-contact .ct-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .ct-reach__card {
  padding: 24px 22px 26px;
  background: var(--paper);
  color: var(--deep);
  border-left: 4px solid var(--orange);
}

.page-contact .ct-reach__key {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--wine);
}

.page-contact .ct-reach__value {
  margin: 12px 0 0;
  font-size: clamp(15px, 2vw, 19px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--deep);
  word-break: break-word;
}

.page-contact .ct-reach__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 站点信息与备案 ---------- */
.page-contact .ct-meta {
  background: #04101f;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-meta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-contact .ct-meta__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-meta__text {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 248, 251, 0.74);
}

.page-contact .ct-meta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-contact .ct-meta__icp {
  display: inline-block;
  padding: 14px 18px;
  border: 1px solid var(--ct-line);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-hero__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .ct-hero__stat {
    flex-direction: column;
    gap: 6px;
    padding: 20px 22px 4px;
    border-bottom: 0;
    border-left: 1px solid var(--ct-line);
  }

  .page-contact .ct-hero__stat:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .ct-kit__grid,
  .page-contact .ct-reach__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .page-contact .ct-dir__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-contact .ct-flow__path {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
  }

  .page-contact .ct-flow__path path {
    stroke: var(--cyan);
    stroke-width: 2;
    stroke-dasharray: 7 9;
    vector-effect: non-scaling-stroke;
    opacity: 0.5;
  }

  .page-contact .ct-flow__steps {
    position: relative;
    z-index: 1;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .page-contact .ct-flow__steps > li:nth-child(2) {
    margin-top: 34px;
  }

  .page-contact .ct-flow__steps > li:nth-child(3) {
    margin-top: 68px;
  }

  .page-contact .ct-flow__steps > li:nth-child(4) {
    margin-top: 102px;
  }

  .page-contact .ct-cases {
    margin-top: 0;
  }

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

  .page-contact .ct-meta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-step {
    transition: none;
  }

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