.page-contact {
  --ct-pad: clamp(18px, 3.2vw, 34px);
  --ct-line-strong: rgba(167, 180, 174, .3);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact .ct-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.2vw, 74px);
  line-height: 1.02;
  letter-spacing: -.025em;
  color: var(--paper);
}

.page-contact .ct-h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .ct-lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .ct-lead-sm {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .ct-body {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .btn-solid {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--coal);
}

.page-contact .btn-ghost {
  border-color: var(--ct-line-strong);
  color: var(--paper);
}

.page-contact .btn-outline {
  border-color: var(--line-lime);
  color: var(--paper);
}

.page-contact .btn-outline:hover {
  background: rgba(200, 255, 61, .1);
}

/* ---------- hero ---------- */

.page-contact .ct-hero {
  position: relative;
  padding: clamp(26px, 5vw, 60px) 0 clamp(34px, 6vw, 72px);
  border-bottom: 2px solid var(--ct-line-strong);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(102, 217, 200, .13), transparent 62%),
    linear-gradient(135deg, rgba(200, 255, 61, .055), transparent 46%);
}

.page-contact .ct-hero-inner {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .ct-mailbox {
  position: relative;
  margin-top: clamp(24px, 3.4vw, 34px);
  padding: var(--ct-pad);
  border: 2px solid var(--line-lime);
  background: linear-gradient(160deg, rgba(14, 42, 34, .94), rgba(5, 8, 7, .74));
  box-shadow: var(--shadow-panel);
}

.page-contact .ct-mailbox::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  width: 68px;
  height: 2px;
  background: var(--lime);
}

.page-contact .ct-mailbox-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--teal);
  text-transform: uppercase;
}

.page-contact .ct-mail {
  display: block;
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.6vw, 26px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--lime);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .ct-mail:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

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

.page-contact .ct-mail-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .ct-facts {
  margin: clamp(22px, 3vw, 30px) 0 0;
}

.page-contact .ct-fact {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .ct-fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-contact .ct-fact dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .ct-fact dd a {
  color: var(--paper);
  text-decoration: underline;
  text-decoration-color: var(--line-lime);
  text-underline-offset: 4px;
}

.page-contact .ct-figure {
  margin: 0;
  border: 2px solid var(--ct-line-strong);
  background: var(--panel);
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06);
}

.page-contact .ct-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--silver);
}

.page-contact .ct-prep-figure img {
  aspect-ratio: 10 / 7;
}

/* ---------- 类型切换 ---------- */

.page-contact .ct-types {
  padding: clamp(40px, 7vw, 86px) 0;
  border-bottom: 2px solid var(--ct-line-strong);
}

.page-contact .ct-types-head {
  max-width: 62ch;
}

.page-contact .ct-switch {
  margin-top: clamp(24px, 4vw, 44px);
  border-top: 2px solid var(--ct-line-strong);
}

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

.page-contact .ct-tab {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 14px 14px 18px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.page-contact .ct-tab:nth-child(even) {
  border-left: 1px solid var(--line);
}

.page-contact .ct-tab::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.page-contact .ct-tab-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--silver);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-tab-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-tab-sub {
  font-size: 12px;
  line-height: 1.5;
  color: var(--silver);
}

.page-contact .ct-tab:has(.ct-radio:checked) {
  background: rgba(255, 106, 42, .1);
}

.page-contact .ct-tab:has(.ct-radio:checked)::after {
  background: var(--orange);
}

.page-contact .ct-tab:has(.ct-radio:checked) .ct-tab-index {
  color: var(--orange);
}

.page-contact .ct-tab:has(.ct-radio:focus-visible) {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

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

.page-contact .ct-panels {
  padding: clamp(22px, 3.4vw, 34px) 0 0;
}

.page-contact .ct-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

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

.page-contact .ct-panel h3 {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-panel-text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .ct-panel-text a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-contact .ct-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 2px;
  background: var(--lime);
}

.page-contact .ct-panel-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 4px;
}

.page-contact .ct-inline-link {
  font-size: 14px;
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@supports selector(:has(*)) {
  .page-contact .ct-panel {
    display: none;
  }

  .page-contact .ct-switch:has(#ct-type-content:checked) .ct-panel--content,
  .page-contact .ct-switch:has(#ct-type-team:checked) .ct-panel--team,
  .page-contact .ct-switch:has(#ct-type-tech:checked) .ct-panel--tech,
  .page-contact .ct-switch:has(#ct-type-partner:checked) .ct-panel--partner {
    display: grid;
  }
}

/* ---------- 提交清单 ---------- */

.page-contact .ct-prep {
  padding: clamp(40px, 7vw, 84px) 0;
  border-bottom: 2px solid var(--ct-line-strong);
  background: linear-gradient(180deg, rgba(14, 42, 34, .62), rgba(7, 28, 22, 0));
}

.page-contact .ct-prep-inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .ct-check {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-check label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 13px 15px;
  border: 1px solid var(--line);
  background: rgba(14, 42, 34, .55);
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .ct-check label:hover {
  border-color: var(--line-lime);
}

.page-contact .ct-check input {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--lime);
  cursor: pointer;
}

.page-contact .ct-check label:has(input:checked) {
  border-color: var(--line-lime);
  background: rgba(200, 255, 61, .07);
}

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

.page-contact .ct-hint {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 纠错行 ---------- */

.page-contact .ct-fix {
  padding: clamp(40px, 7vw, 84px) 0;
  border-bottom: 2px solid var(--ct-line-strong);
}

.page-contact .ct-rows {
  margin-top: clamp(22px, 3.4vw, 36px);
  border-top: 1px solid var(--line);
}

.page-contact .ct-row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-row-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .ct-row-title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-row-text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .ct-row-text a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .ct-fix-cta {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
}

/* ---------- 结尾 ---------- */

.page-contact .ct-close {
  padding: clamp(40px, 7vw, 84px) 0 clamp(48px, 8vw, 96px);
  background:
    linear-gradient(150deg, rgba(200, 255, 61, .075), transparent 55%),
    linear-gradient(0deg, rgba(102, 217, 200, .05), transparent 42%);
}

.page-contact .ct-close-inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .ct-close-card {
  padding: var(--ct-pad);
  border: 2px solid var(--line-lime);
  background: rgba(5, 8, 7, .58);
}

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

.page-contact .ct-close-mail {
  display: block;
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.2vw, 22px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--lime);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .ct-close-mail:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.page-contact .ct-close-time {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--silver);
}

.page-contact .ct-close-card .btn {
  margin-top: 18px;
}

.page-contact .ct-close-small {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .ct-close-small a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌面 ---------- */

@media (min-width: 900px) {
  .page-contact .ct-hero-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-contact .ct-switch {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .page-contact .ct-tabs {
    grid-template-columns: 1fr;
    border-right: 1px solid var(--line);
  }

  .page-contact .ct-tab {
    padding: 18px 18px 20px;
  }

  .page-contact .ct-tab:nth-child(even) {
    border-left: 0;
  }

  .page-contact .ct-tab::after {
    left: 0;
    right: auto;
    top: 0;
    bottom: 0;
    width: 3px;
    height: auto;
  }

  .page-contact .ct-panels {
    padding: clamp(20px, 3vw, 34px) 0 clamp(20px, 3vw, 34px) clamp(24px, 3.4vw, 46px);
  }

  .page-contact .ct-prep-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .ct-row {
    grid-template-columns: 56px minmax(0, 220px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-contact .ct-close-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-tab,
  .page-contact .ct-tab::after,
  .page-contact .ct-tab-index,
  .page-contact .ct-check label {
    transition: none;
  }
}
<<<END>>>