.page-contact {
  --ct-rule: rgba(20, 16, 13, .12);
  --ct-tint: rgba(0, 102, 255, .08);
}

/* ---------- 面包屑 ---------- */
.page-contact .ct-top {
  padding-block: 20px 0;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-block: 20px 0;
}

.page-contact .ct-hero__head {
  display: grid;
  gap: 20px;
  padding-bottom: 26px;
}

.page-contact .ct-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(29px, 7.2vw, 58px);
  line-height: 1.08;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .ct-hero__lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-contact .ct-hero__media {
  margin: 0;
  background: var(--blue-mist);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-contact .ct-hero__media .media__cap {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 区块标题 ---------- */
.page-contact .ct-head {
  max-width: 44em;
}

.page-contact .ct-head h2 {
  margin: 8px 0 0;
  font-size: clamp(22px, 4.8vw, 34px);
  line-height: 1.22;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .ct-head p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 合作类型 ---------- */
.page-contact .ct-types {
  padding-block: 46px 0;
}

.page-contact .ct-types__grid {
  display: grid;
  gap: 24px;
}

.page-contact .ct-sticky {
  border-radius: var(--radius-l);
  padding: 24px 20px;
  color: #fff;
  background-color: var(--ink-blue);
  background-image:
    radial-gradient(circle at 92% 6%, rgba(123, 47, 242, .58), transparent 58%),
    radial-gradient(circle at 6% 96%, rgba(0, 102, 255, .45), transparent 54%);
}

.page-contact .ct-sticky .eyebrow {
  color: rgba(220, 233, 255, .7);
}

.page-contact .ct-sticky__title {
  margin: 8px 0 18px;
  font-size: 20px;
  font-weight: 900;
  font-style: italic;
  color: #fff;
}

.page-contact .ct-sticky__list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-sticky__row {
  display: grid;
  gap: 4px;
  padding-block: 12px;
  border-bottom: 1px dashed rgba(220, 233, 255, .26);
}

.page-contact .ct-sticky__row:first-child {
  padding-top: 0;
}

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

.page-contact .ct-sticky__row dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(220, 233, 255, .72);
}

.page-contact .ct-sticky__row dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  overflow-wrap: anywhere;
}

.page-contact .ct-sticky__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(220, 233, 255, .78);
}

.page-contact .ct-sticky__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-contact .ct-sticky__actions .btn--ghost {
  color: #fff;
  border-color: rgba(220, 233, 255, .42);
  background: transparent;
}

.page-contact .ct-types__list > h2 {
  margin: 8px 0 18px;
  font-size: clamp(22px, 4.8vw, 32px);
  line-height: 1.24;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-contact .ct-files {
  display: grid;
  gap: 12px;
}

.page-contact .ct-file {
  background: var(--panel);
  border: 1px solid var(--ct-rule);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-file[open] {
  box-shadow: var(--shadow-lift);
}

.page-contact .ct-file__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  background: linear-gradient(90deg, var(--ct-tint), transparent 68%);
}

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

.page-contact .ct-file__q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.page-contact .ct-file__num {
  flex: none;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--blue-deep);
  background: var(--blue-mist);
  border-radius: 999px;
  padding: 3px 9px;
}

.page-contact .ct-file__name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--ink);
}

.page-contact .ct-file__toggle {
  flex: none;
  position: relative;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--ct-rule);
  background: #fff;
}

.page-contact .ct-file__toggle::before,
.page-contact .ct-file__toggle::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--blue);
  transform: translateY(-50%);
}

.page-contact .ct-file__toggle::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform var(--dur) var(--ease);
}

.page-contact .ct-file[open] .ct-file__toggle::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-contact .ct-file__body {
  padding: 0 16px 18px;
  border-top: 1px dashed var(--ct-rule);
}

.page-contact .ct-file__fit {
  display: inline-block;
  margin: 14px 0 0;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--orange-sand);
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 700;
}

.page-contact .ct-file__body p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink);
}

.page-contact .ct-file__points {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .ct-file__points li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .ct-file__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--blue);
  transform: rotate(45deg);
}

/* ---------- 流程 ---------- */
.page-contact .ct-flow {
  padding-block: 52px 0;
}

.page-contact .ct-steps {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .ct-step {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--ct-rule);
  border-radius: var(--radius-m);
  padding: 18px 16px 16px;
  box-shadow: var(--shadow-panel);
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--blue), var(--violet));
}

.page-contact .ct-step__num {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 8px;
  font-size: 12px;
  letter-spacing: .06em;
  color: #fff;
  background: var(--blue);
}

.page-contact .ct-step:nth-child(2) .ct-step__num {
  background: var(--violet);
}

.page-contact .ct-step:nth-child(3) .ct-step__num {
  background: var(--orange);
  color: var(--ink);
}

.page-contact .ct-step:nth-child(4) .ct-step__num {
  background: var(--ink-blue);
}

.page-contact .ct-step__name {
  margin: 12px 0 0;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--ink);
}

.page-contact .ct-step__desc {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .ct-step__time {
  margin: 12px 0 0;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--blue-deep);
}

.page-contact .ct-flow__media {
  margin: 26px 0 0;
  background: var(--blue-mist);
}

.page-contact .ct-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 材料清单 ---------- */
.page-contact .ct-kit {
  padding-block: 52px 0;
}

.page-contact .ct-kit__grid {
  display: grid;
  gap: 24px;
}

.page-contact .ct-kit__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .ct-kit__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  background: var(--panel);
  border: 1px solid var(--ct-rule);
  border-left: 4px solid var(--blue-mist);
  border-radius: var(--radius-m);
  padding: 16px;
  transition: border-left-color var(--dur) var(--ease);
}

.page-contact .ct-kit__item:hover {
  border-left-color: var(--orange);
}

.page-contact .ct-kit__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--blue-deep);
}

.page-contact .ct-kit__item h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

.page-contact .ct-kit__item p {
  grid-column: 2;
  grid-row: 2;
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--muted);
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-channels {
  padding-block: 52px 0;
}

.page-contact .ct-channels__grid {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.page-contact .ct-channel {
  display: grid;
  gap: 8px;
  align-content: start;
  background: var(--panel);
  border: 1px solid var(--ct-rule);
  border-radius: var(--radius-m);
  padding: 18px 16px;
  box-shadow: var(--shadow-panel);
}

.page-contact .ct-channel h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--muted);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--blue-deep);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel p {
  margin: 0;
  font-size: 13px;
  line-height: 1.74;
  color: var(--muted);
}

.page-contact .ct-channel--primary {
  color: #fff;
  border-color: transparent;
  background-color: var(--ink-blue);
  background-image: radial-gradient(circle at 96% 4%, rgba(123, 47, 242, .55), transparent 62%);
}

.page-contact .ct-channel--primary h3 {
  color: rgba(220, 233, 255, .74);
}

.page-contact .ct-channel--primary .ct-channel__value {
  font-size: 18px;
  color: #ffb37d;
}

.page-contact .ct-channel--primary p {
  color: rgba(220, 233, 255, .82);
}

.page-contact .ct-channels__foot {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-m);
  background: var(--blue-mist);
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--ink);
}

.page-contact .ct-channels__foot a {
  color: var(--blue-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 线下共建 ---------- */
.page-contact .ct-live {
  padding-block: 52px 0;
}

.page-contact .ct-live__panel {
  border-radius: var(--radius-l);
  padding: 26px 20px;
  color: #fff;
  background-color: var(--ink-blue);
  background-image:
    radial-gradient(circle at 90% 8%, rgba(123, 47, 242, .6), transparent 58%),
    radial-gradient(circle at 2% 96%, rgba(0, 102, 255, .42), transparent 52%);
}

.page-contact .ct-live__panel .eyebrow {
  color: rgba(220, 233, 255, .7);
}

.page-contact .ct-live__panel h2 {
  margin: 10px 0 0;
  font-size: clamp(21px, 4.6vw, 32px);
  line-height: 1.24;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -.012em;
  color: #fff;
}

.page-contact .ct-live__lead {
  margin: 14px 0 0;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(220, 233, 255, .84);
}

.page-contact .ct-live__grid {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.page-contact .ct-live__item {
  padding: 16px;
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(220, 233, 255, .16);
}

.page-contact .ct-live__item h3 {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 800;
  color: #fff;
}

.page-contact .ct-live__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.74;
  color: rgba(220, 233, 255, .82);
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq {
  padding-block: 52px 0;
}

.page-contact .ct-faq__list {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}

.page-contact .ct-faq__list .acc {
  border-radius: var(--radius-m);
  overflow: hidden;
}

/* ---------- 收尾 ---------- */
.page-contact .ct-cta {
  padding-block: 52px 64px;
}

.page-contact .ct-cta__panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-l);
  padding: 28px 22px;
  color: #fff;
  background-image: linear-gradient(135deg, var(--blue) 0%, var(--violet) 100%);
}

.page-contact .ct-cta__panel::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
}

.page-contact .ct-cta__panel .eyebrow {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, .78);
}

.page-contact .ct-cta__panel h2 {
  position: relative;
  z-index: 1;
  margin: 10px 0 0;
  font-size: clamp(22px, 4.8vw, 34px);
  line-height: 1.2;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -.012em;
  color: #fff;
}

.page-contact .ct-cta__panel p {
  position: relative;
  z-index: 1;
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(255, 255, 255, .88);
}

.page-contact .ct-cta__actions {
  position: relative;
  z-index: 1;
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-cta__panel .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, .48);
  background: transparent;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-hero__media img {
    aspect-ratio: 16 / 9;
  }

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

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

  .page-contact .ct-live__panel,
  .page-contact .ct-cta__panel {
    padding: 34px 30px;
  }
}

@media (min-width: 880px) {
  .page-contact .ct-hero {
    padding-block: 28px 0;
  }

  .page-contact .ct-hero__head {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
    gap: 40px;
    padding-bottom: 34px;
  }

  .page-contact .ct-hero__lead {
    font-size: 16px;
  }

  .page-contact .ct-kit__grid {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .ct-file:nth-child(odd) {
    margin-right: 26px;
  }

  .page-contact .ct-file:nth-child(even) {
    margin-left: 26px;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-types {
    padding-block: 58px 0;
  }

  .page-contact .ct-types__grid {
    grid-template-columns: minmax(250px, 306px) minmax(0, 1fr);
    gap: 38px;
    align-items: start;
  }

  .page-contact .ct-sticky {
    position: sticky;
    top: 96px;
    padding: 26px 22px;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .ct-flow__media img {
    aspect-ratio: 21 / 9;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-channel--primary {
    grid-column: span 2;
  }

  .page-contact .ct-cta__panel {
    padding: 44px 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-file,
  .page-contact .ct-file__toggle::after,
  .page-contact .ct-kit__item {
    transition: none;
  }
}