.page-contact {
  --ct-gap: clamp(16px, 2.6vw, 28px);
  --ct-pad: clamp(18px, 2.6vw, 30px);
  display: block;
  color: var(--paper);
  background: var(--ink-900);
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .shell {
  width: 100%;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(26px, 4vw, 52px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-bottom: clamp(52px, 8vw, 104px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 80% at 8% 0%, rgba(124, 255, 79, 0.08) 0%, rgba(7, 9, 12, 0) 52%),
    var(--ink-900);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  font-size: clamp(34px, 8.2vw, 76px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.page-contact .ct-hero__lede {
  margin: 18px 0 0;
  max-width: 42ch;
  font-size: clamp(16px, 1.7vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-lines {
  margin-top: clamp(26px, 3.4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .ct-line {
  position: relative;
  padding: var(--ct-pad);
  padding-left: calc(var(--ct-pad) + 8px);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .ct-line::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: var(--green);
}

.page-contact .ct-line__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-line__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.5vw, 22px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--green);
  overflow-wrap: anywhere;
  word-break: break-word;
}

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

.page-contact .ct-hero__hours {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .ct-hero__hours .status-dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(124, 255, 79, 0.14);
}

.page-contact .ct-hero__media {
  position: relative;
  margin: 0;
  min-height: 240px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 9, 12, 0) 42%, rgba(7, 9, 12, 0.74) 100%);
}

.page-contact .ct-hero__tag {
  position: absolute;
  z-index: 1;
  right: 14px;
  bottom: 14px;
}

/* ---------- 章节通用 ---------- */
.page-contact .ct-section {
  position: relative;
  padding-block: clamp(56px, 8vw, 118px);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-head {
  max-width: 720px;
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-contact .ct-head__title {
  margin: 14px 0 0;
  font-size: clamp(27px, 4.6vw, 50px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-contact .ct-head__lede {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 01 渠道选择 ---------- */
.page-contact .ct-channel__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 42px);
}

.page-contact .ct-channel__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .ct-channel__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-contact .ct-way {
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  padding: var(--ct-pad);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-left-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .ct-way:hover,
.page-contact .ct-way:focus-within {
  border-left-color: var(--green);
  background: #121A26;
}

.page-contact .ct-way__idx {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--green);
}

.page-contact .ct-way__body {
  min-width: 0;
}

.page-contact .ct-way__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .ct-way__text {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 02 咨询范围 ---------- */
.page-contact .ct-topics__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.6vw, 18px);
}

.page-contact .ct-topic {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: var(--ct-pad);
  border-top: 2px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 22, 32, 0.96), rgba(10, 14, 20, 0.96));
  transition: border-top-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-topic:hover,
.page-contact .ct-topic:focus-within {
  border-top-color: var(--green);
  transform: translateY(-3px);
}

.page-contact .ct-topic__no {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .ct-topic:nth-child(1) .ct-topic__no { color: var(--green); }
.page-contact .ct-topic:nth-child(2) .ct-topic__no { color: var(--blue); }
.page-contact .ct-topic:nth-child(3) .ct-topic__no { color: var(--amber); }
.page-contact .ct-topic:nth-child(4) .ct-topic__no { color: var(--red); }

.page-contact .ct-topic__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .ct-topic__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 03 沟通准备 ---------- */
.page-contact .ct-prepare {
  background:
    linear-gradient(90deg, rgba(14, 42, 22, 0.55) 0%, rgba(7, 9, 12, 0) 62%);
}

.page-contact .ct-prepare__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 56px);
}

.page-contact .ct-prepare__intro .ct-head__lede {
  max-width: 38ch;
}

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

.page-contact .ct-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  align-items: start;
  padding: var(--ct-pad);
  border: 1px solid var(--line);
  background: rgba(16, 22, 32, 0.82);
}

.page-contact .ct-step__no {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--green);
  background: var(--ink-900);
  border: 1px solid var(--line);
}

.page-contact .ct-step__body {
  min-width: 0;
}

.page-contact .ct-step__title {
  margin: 4px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-contact .ct-step__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 04 团队位置 ---------- */
.page-contact .ct-place__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 48px);
}

.page-contact .ct-place__info .ct-head__lede {
  max-width: 42ch;
}

.page-contact .ct-place__list {
  margin: clamp(24px, 3vw, 34px) 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-place__list > div {
  padding: clamp(16px, 2vw, 22px);
  background: var(--ink-800);
}

.page-contact .ct-place__list dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-place__list dd {
  margin: 9px 0 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-diagram {
  margin: 0;
}

.page-contact .ct-diagram svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #0B111A;
}

.page-contact .ct-diagram__caption {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 05 合作与反馈 ---------- */
.page-contact .ct-collab__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 20px);
}

.page-contact .ct-collab__card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .ct-collab__card::before {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  background: var(--green);
}

.page-contact .ct-collab__card:nth-child(2)::before { background: var(--blue); }
.page-contact .ct-collab__card:nth-child(3)::before { background: var(--amber); }

.page-contact .ct-collab__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .ct-collab__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 下一步 ---------- */
.page-contact .ct-cta .shell {
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-contact .ct-cta {
  border-bottom: 0;
}

.page-contact .ct-cta__inner {
  padding: clamp(28px, 4vw, 56px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  background: linear-gradient(118deg, rgba(14, 42, 22, 0.78) 0%, rgba(16, 22, 32, 0.96) 58%);
}

.page-contact .ct-cta__inner .ct-head__lede {
  max-width: 46ch;
}

.page-contact .ct-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .ct-cta__links .btn {
  flex: 0 1 auto;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(26px, 3vw, 46px);
    align-items: stretch;
  }

  .page-contact .ct-channel__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

  .page-contact .ct-prepare__grid {
    grid-template-columns: minmax(0, 0.74fr) minmax(0, 1.26fr);
    align-items: start;
  }

  .page-contact .ct-place__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

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

@media (min-width: 1080px) {
  .page-contact .ct-topics__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page-contact .ct-way {
    gap: 12px;
  }

  .page-contact .ct-way__idx {
    font-size: 12px;
  }

  .page-contact .ct-cta__links {
    flex-direction: column;
    align-items: stretch;
  }

  .page-contact .ct-cta__links .btn {
    width: 100%;
    justify-content: space-between;
  }
}

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

  .page-contact .ct-topic:hover,
  .page-contact .ct-topic:focus-within {
    transform: none;
  }
}