.page-contact {
  --ct-radius: 14px;
  --ct-surface: rgba(30, 74, 58, .34);
  padding-bottom: 64px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: 26px 0 10px;
  max-width: 62ch;
}

.page-contact .ct-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 7.4vw, 4.1rem);
  line-height: 1.03;
  letter-spacing: -.012em;
  font-weight: 700;
  color: var(--white);
  margin: 12px 0 18px;
}

.page-contact .ct-hero__lede {
  color: rgba(244, 246, 242, .82);
  max-width: 50ch;
}

.page-contact .ct-hero__mail {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 0 6px 20px;
  border-left: 3px solid var(--lime);
  max-width: 100%;
}

.page-contact .ct-hero__mail-label {
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-contact .ct-hero__mail-addr {
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 4.6vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--lime);
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .ct-hero__mail-hint {
  font-size: 12px;
  color: var(--fog);
  letter-spacing: .04em;
}

/* ---------- 顶部横幅图 ---------- */
.page-contact .ct-banner {
  margin: 22px 0 4px;
  border-radius: var(--ct-radius);
  overflow: hidden;
}

.page-contact .ct-banner .figure__media {
  display: block;
  width: 100%;
  height: clamp(170px, 28vw, 320px);
  object-fit: cover;
  max-width: 100%;
}

/* ---------- 问题类型选择器 ---------- */
.page-contact .ct-picker-section {
  padding-top: 52px;
}

.page-contact .ct-picker__input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .ct-picker__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.page-contact .ct-picker__tab {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 18, 32, .55);
  color: var(--fog);
  font-size: 13px;
  letter-spacing: .08em;
  line-height: 1;
  white-space: nowrap;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease, transform .18s ease;
}

.page-contact .ct-picker__tab:hover {
  color: var(--white);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact .ct-picker__input:nth-child(1):checked ~ .ct-picker__tabs > .ct-picker__tab:nth-child(1),
.page-contact .ct-picker__input:nth-child(2):checked ~ .ct-picker__tabs > .ct-picker__tab:nth-child(2),
.page-contact .ct-picker__input:nth-child(3):checked ~ .ct-picker__tabs > .ct-picker__tab:nth-child(3),
.page-contact .ct-picker__input:nth-child(4):checked ~ .ct-picker__tabs > .ct-picker__tab:nth-child(4),
.page-contact .ct-picker__input:nth-child(5):checked ~ .ct-picker__tabs > .ct-picker__tab:nth-child(5) {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-900);
  font-weight: 700;
}

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

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

.page-contact .ct-picker__input:nth-child(1):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(1),
.page-contact .ct-picker__input:nth-child(2):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(2),
.page-contact .ct-picker__input:nth-child(3):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(3),
.page-contact .ct-picker__input:nth-child(4):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(4),
.page-contact .ct-picker__input:nth-child(5):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(5) {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  animation: ct-panel-in .22s ease both;
}

@keyframes ct-panel-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.page-contact .ct-panel__block {
  background: var(--ct-surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.page-contact .ct-panel__title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--white);
  margin: 0 0 10px;
}

.page-contact .ct-panel__block p {
  color: rgba(244, 246, 242, .8);
  margin: 0;
}

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

.page-contact .ct-list > li {
  position: relative;
  padding-left: 18px;
  color: rgba(244, 246, 242, .8);
  line-height: 1.6;
}

.page-contact .ct-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 电话与地址 ---------- */
.page-contact .ct-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .ct-reach__card {
  border-radius: var(--ct-radius);
  padding: 24px 22px;
}

.page-contact .ct-reach__value {
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 6vw, 2.05rem);
  line-height: 1.15;
  letter-spacing: .02em;
  color: var(--lime);
  margin: 14px 0 12px;
  user-select: all;
  overflow-wrap: anywhere;
}

.page-contact .ct-reach__value--text {
  font-family: var(--font-body);
  font-size: clamp(1rem, 4vw, 1.24rem);
  font-weight: 600;
  color: var(--white);
  letter-spacing: .01em;
}

.page-contact .ct-reach__desc {
  color: rgba(244, 246, 242, .78);
  margin: 0 0 14px;
}

.page-contact .ct-reach__meta {
  display: inline-block;
  margin: 0;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--fog);
}

.page-contact .ct-map {
  margin-top: 16px;
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.page-contact .ct-map svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 340px;
}

/* ---------- 反馈清单 ---------- */
.page-contact .ct-what__grid {
  align-items: start;
}

.page-contact .ct-what__body {
  max-width: 60ch;
}

.page-contact .ct-what__lede {
  color: rgba(244, 246, 242, .8);
  margin: 12px 0 0;
}

.page-contact .ct-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-contact .ct-steps > li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
  color: rgba(244, 246, 242, .84);
  line-height: 1.6;
}

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

.page-contact .ct-steps .num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--lime);
  padding-top: 4px;
}

.page-contact .ct-what__figure {
  border-radius: var(--ct-radius);
  overflow: hidden;
  margin: 26px 0 0;
}

.page-contact .ct-what__figure .figure__media {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 纠错与选题 ---------- */
.page-contact .ct-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .ct-fix__card {
  border-top: 2px solid var(--line);
  padding: 22px 0 0;
}

.page-contact .ct-fix__card:first-child {
  border-top-color: var(--red);
}

.page-contact .ct-fix__card:last-child {
  border-top-color: var(--cyan);
}

.page-contact .ct-fix__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 4.2vw, 1.5rem);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
  margin: 14px 0 12px;
}

.page-contact .ct-fix__card p {
  color: rgba(244, 246, 242, .8);
  margin: 0 0 12px;
}

.page-contact .ct-fix__card p:last-child {
  margin-bottom: 0;
}

/* ---------- 合作 ---------- */
.page-contact .ct-coop__inner {
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  padding: 30px 22px;
  display: grid;
  gap: 24px;
  background:
    radial-gradient(130% 150% at 100% 0%, rgba(200, 240, 74, .13), transparent 56%),
    rgba(12, 22, 20, .78);
}

.page-contact .ct-coop__lead .lede {
  margin-top: 12px;
  color: rgba(244, 246, 242, .8);
}

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

.page-contact .ct-coop__list > li {
  padding-left: 16px;
  border-left: 2px solid var(--green-800);
  color: rgba(244, 246, 242, .82);
  line-height: 1.7;
}

.page-contact .ct-coop__list strong {
  display: block;
  color: var(--lime);
  font-size: .84rem;
  letter-spacing: .14em;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-contact .ct-coop__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact :is(a) {
  color: var(--cyan);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-hero {
    padding-top: 36px;
  }

  .page-contact .ct-picker__input:nth-child(1):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(1),
  .page-contact .ct-picker__input:nth-child(2):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(2),
  .page-contact .ct-picker__input:nth-child(3):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(3),
  .page-contact .ct-picker__input:nth-child(4):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(4),
  .page-contact .ct-picker__input:nth-child(5):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(5) {
    grid-template-columns: 1.15fr 1fr;
    gap: 20px;
  }

  .page-contact .ct-reach__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .ct-fix__grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

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

  .page-contact .ct-coop__inner {
    grid-template-columns: 1.2fr 1fr;
    grid-template-areas:
      "lead list"
      "actions list";
    align-items: start;
    padding: 36px 32px;
  }

  .page-contact .ct-coop__lead { grid-area: lead; }
  .page-contact .ct-coop__list { grid-area: list; }
  .page-contact .ct-coop__actions { grid-area: actions; }
}

@media (min-width: 1080px) {
  .page-contact .ct-hero__mail {
    margin-top: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-picker__tab,
  .page-contact .ct-picker__input:nth-child(1):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(1),
  .page-contact .ct-picker__input:nth-child(2):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(2),
  .page-contact .ct-picker__input:nth-child(3):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(3),
  .page-contact .ct-picker__input:nth-child(4):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(4),
  .page-contact .ct-picker__input:nth-child(5):checked ~ .ct-picker__panels > .ct-picker__panel:nth-child(5) {
    animation: none;
    transition: none;
    transform: none;
  }
}
<<<END>>>