.page-contact {
  --ct-accent: var(--phantom);
  --ct-accent-soft: rgba(122, 77, 255, .22);
}

/* ==================== 首屏斜切色带 ==================== */
.page-contact .ct-band {
  position: relative;
  overflow: hidden;
  background: var(--night);
  padding: clamp(2.75rem, 7vw, 5.5rem) 0 clamp(3.25rem, 8vw, 6rem);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-band::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(880px, 88vw);
  height: min(580px, 64vw);
  background: linear-gradient(148deg, var(--phantom) 0%, var(--shadow-purple) 56%, transparent 82%);
  transform: rotate(-12deg);
  opacity: .76;
  pointer-events: none;
}

.page-contact .ct-band::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(122, 77, 255, .7), transparent);
  pointer-events: none;
}

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

.page-contact .ct-band .gs-title {
  font-size: clamp(1.9rem, 5.2vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 15em;
  margin: .5rem 0 1.15rem;
}

.page-contact .ct-band .gs-lede {
  max-width: 46em;
}

.page-contact .ct-band .gs-breadcrumb {
  margin-bottom: 1.5rem;
}

.page-contact .ct-band .gs-row {
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

/* ==================== 通用板块头部 ==================== */
.page-contact .ct-head {
  max-width: 46rem;
}

.page-contact .ct-head .gs-title {
  margin: .4rem 0 .9rem;
}

.page-contact .ct-panel__title {
  font-family: var(--font-body);
  font-size: clamp(1.25rem, 3.6vw, 1.75rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -.015em;
  margin: .45rem 0 .9rem;
  color: var(--ink);
}

.page-contact .ct-panel__text {
  font-size: 1rem;
  line-height: 1.75;
  color: #4a4140;
  margin: 0;
}

/* ==================== 渠道台：卡片 + 视觉 ==================== */
.page-contact .ct-desk {
  display: grid;
  gap: 1.75rem;
  margin-top: clamp(1.75rem, 4.5vw, 3rem);
}

.page-contact .ct-channels {
  display: grid;
  gap: 1rem;
}

.page-contact .ct-channel {
  padding: 1.4rem 1.5rem 1.5rem;
  border-radius: var(--radius);
  display: grid;
  gap: .55rem;
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-channel:hover {
  transform: translateY(-4px);
  border-color: var(--phantom);
}

.page-contact .ct-channel__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(.98rem, 2.6vw, 1.16rem);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--lime);
  word-break: break-all;
  margin: .1rem 0 .5rem;
}

.page-contact .ct-channel__value--addr {
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--mist);
  word-break: normal;
}

.page-contact .ct-channel__use {
  font-size: .95rem;
  line-height: 1.72;
  color: var(--mist);
  opacity: .84;
  margin: 0;
}

.page-contact .ct-channel__meta {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .01em;
  color: var(--steel);
  margin: .35rem 0 0;
  padding-top: .75rem;
  border-top: 1px dashed var(--line);
}

/* 右侧视觉 */
.page-contact .ct-visual {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

.page-contact .ct-visual .gs-media {
  aspect-ratio: 3 / 2;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-contact .ct-visual__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-contact .ct-visual__list li {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  align-items: baseline;
  gap: .75rem;
  font-size: .93rem;
  line-height: 1.6;
  color: var(--mist);
  opacity: .86;
}

.page-contact .ct-visual__list .gs-mono {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--lime);
  text-align: right;
}

/* ==================== 安装 / 数据 双栏 ==================== */
.page-contact .ct-split {
  display: grid;
  gap: 1.5rem;
}

.page-contact .ct-panel {
  position: relative;
  background: #fff;
  border: 1px solid rgba(34, 27, 26, .13);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4.2vw, 2.4rem) clamp(1.35rem, 4vw, 2.25rem);
  overflow: hidden;
}

.page-contact .ct-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--phantom);
}

.page-contact .ct-panel--data::before {
  background: var(--shadow-purple);
}

.page-contact .ct-material {
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-contact .ct-material li {
  position: relative;
  padding-left: 1.45rem;
  font-size: .96rem;
  line-height: 1.72;
  color: #4a4140;
}

.page-contact .ct-material li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: .5rem;
  height: .5rem;
  border-radius: 2px;
  background: var(--phantom);
  transform: rotate(45deg);
}

.page-contact .ct-material li strong {
  color: var(--ink);
  font-weight: 800;
}

.page-contact .ct-material--dark li {
  color: var(--mist);
  opacity: .86;
}

.page-contact .ct-material--dark li::before {
  background: var(--lime);
}

.page-contact .ct-material--dark li strong {
  color: var(--lime);
}

.page-contact .ct-panel .gs-note {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed rgba(34, 27, 26, .16);
}

/* ==================== 登记流程 ==================== */
.page-contact .ct-flow-visual {
  margin: clamp(1.75rem, 4.5vw, 2.75rem) 0 clamp(2rem, 5vw, 3.25rem);
}

.page-contact .ct-flow-visual .gs-media {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-contact .ct-steps {
  position: relative;
  display: grid;
  gap: 0;
}

.page-contact .ct-step {
  position: relative;
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: 1.1rem;
  padding-bottom: 2.25rem;
}

.page-contact .ct-step:last-child {
  padding-bottom: 0;
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: calc(1.375rem - 1px);
  top: 3.1rem;
  bottom: .4rem;
  width: 2px;
  background-image: linear-gradient(to bottom, rgba(198, 255, 74, .45) 0 6px, transparent 6px 12px);
  background-size: 2px 12px;
}

.page-contact .ct-step:last-child::before {
  display: none;
}

.page-contact .ct-step__num {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .84rem;
  font-weight: 700;
  color: var(--night);
  background: var(--lime);
  position: relative;
  z-index: 1;
}

.page-contact .ct-step__body {
  padding-top: .35rem;
  min-width: 0;
}

.page-contact .ct-step__head {
  font-family: var(--font-body);
  font-size: clamp(1.08rem, 2.9vw, 1.32rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--mist);
  margin: 0 0 .55rem;
}

.page-contact .ct-step__body p {
  font-size: .96rem;
  line-height: 1.75;
  color: var(--mist);
  opacity: .82;
  margin: 0;
}

.page-contact .ct-step__body .gs-collapse {
  margin-top: 1rem;
}

/* ==================== 合作与媒体 ==================== */
.page-contact .ct-partner {
  display: grid;
  gap: 2rem;
}

.page-contact .ct-partner__main .ct-panel__title {
  margin-top: .4rem;
}

.page-contact .ct-partner__main .gs-note {
  margin-top: 1.4rem;
}

.page-contact .ct-partner__side {
  border-left: 3px solid var(--phantom);
  padding: .25rem 0 .25rem 1.25rem;
}

.page-contact .ct-side__label {
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--steel);
  margin: 0 0 1.1rem;
}

.page-contact .ct-side__facts {
  margin: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .ct-side__facts dt {
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--phantom);
  margin-bottom: .3rem;
}

.page-contact .ct-side__facts dd {
  margin: 0;
  font-size: .93rem;
  line-height: 1.7;
  color: #4a4140;
}

/* ==================== 相关页面 ==================== */
.page-contact .ct-more__list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
}

.page-contact .ct-more__list li {
  display: grid;
  gap: .25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-more__list li:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .ct-more__list .gs-link {
  font-weight: 700;
  font-size: 1.02rem;
}

.page-contact .ct-more__list span {
  font-size: .92rem;
  line-height: 1.65;
  color: var(--mist);
  opacity: .74;
}

/* ==================== 响应式 ==================== */
@media (min-width: 700px) {
  .page-contact .ct-more__list li {
    grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-desk {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(2rem, 3.5vw, 3.25rem);
    align-items: start;
  }

  .page-contact .ct-channel {
    padding: 1.5rem 1.6rem 1.6rem;
  }

  .page-contact .ct-partner {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(1.75rem, 3.5vw, 2.75rem);
    align-items: start;
  }

  .page-contact .ct-panel--data {
    margin-top: 3.25rem;
  }
}

@media (max-width: 560px) {
  .page-contact .ct-band::before {
    top: -8%;
    right: -34%;
    width: 118vw;
    height: 62vw;
    opacity: .6;
  }

  .page-contact .ct-channel__value {
    font-size: .92rem;
  }

  .page-contact .ct-step {
    grid-template-columns: 2.25rem minmax(0, 1fr);
    gap: .9rem;
  }

  .page-contact .ct-step__num {
    width: 2.25rem;
    height: 2.25rem;
    font-size: .76rem;
  }

  .page-contact .ct-step::before {
    left: calc(1.125rem - 1px);
    top: 2.6rem;
  }

  .page-contact .ct-partner__side {
    padding-left: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-channel:hover {
    transform: none;
    transition: none;
  }
}