.page-contact {
  --ct-line: rgba(174, 188, 198, .22);
  --ct-line-strong: rgba(174, 188, 198, .42);
  --ct-glass: rgba(16, 42, 50, .62);
  position: relative;
  background:
    radial-gradient(110% 78% at 92% -8%, rgba(59, 224, 138, .09), transparent 58%),
    radial-gradient(80% 58% at 4% 2%, rgba(255, 140, 66, .07), transparent 60%),
    var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  padding-block: 1.25rem 3.5rem;
  overflow-x: hidden;
}

.page-contact .ct-open {
  padding-block: 1.5rem 3rem;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-open-grid {
  display: grid;
  gap: 1.75rem;
}

.page-contact .ct-eyebrow {
  margin: 0 0 .9rem;
  padding-left: .7rem;
  border-left: 3px solid var(--orange);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .ct-h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 7.6vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-lede {
  margin: 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .ct-open-aside {
  border: 1px solid var(--ct-line-strong);
  background: var(--ct-glass);
  padding: 1.05rem 1.1rem 1.15rem;
}

.page-contact .ct-aside-title {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--green);
}

.page-contact .ct-aside-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .1rem;
}

.page-contact .ct-aside-link {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .6rem .2rem;
  border-bottom: 1px solid var(--ct-line);
  color: var(--paper);
  text-decoration: none;
  font-size: .94rem;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .ct-aside-list li:last-child .ct-aside-link {
  border-bottom: 0;
}

.page-contact .ct-aside-link:hover,
.page-contact .ct-aside-link:focus-visible {
  color: var(--green);
  border-bottom-color: var(--green);
}

.page-contact .ct-aside-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

.page-contact .ct-section {
  padding-block: clamp(2.25rem, 6vw, 3.5rem);
}

.page-contact .ct-section + .ct-section {
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-head {
  display: grid;
  gap: .55rem;
  margin-bottom: 1.75rem;
}

.page-contact .ct-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--green);
}

.page-contact .ct-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 5vw, 2.15rem);
  line-height: 1.16;
  color: var(--paper);
}

.page-contact .ct-sub {
  margin: 0;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--mist);
}

/* 联系渠道 */
.page-contact .ct-channels-grid {
  display: grid;
  gap: 1.5rem;
}

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

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

.page-contact .ct-figure .media-caption {
  padding: .7rem .9rem;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-channel-list {
  display: grid;
  gap: .75rem;
}

.page-contact .ct-channel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--ct-line);
  border-left: 3px solid var(--green);
  padding: 1rem 1.05rem 1.1rem;
  display: grid;
  gap: .35rem;
}

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

.page-contact .ct-channel--addr {
  border-left-color: var(--silver);
}

.page-contact .ct-channel-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 3.4vw, 1.1rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel--mail .ct-channel-value {
  color: var(--green);
}

.page-contact .ct-channel--tel .ct-channel-value {
  color: var(--orange);
}

.page-contact .ct-channel-note {
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--mist);
}

/* 反馈流转轨道 */
.page-contact .ct-track-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.4rem;
}

.page-contact .ct-track-list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: .5rem;
  bottom: .5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--green), rgba(59, 224, 138, .35) 55%, rgba(174, 188, 198, .12));
}

.page-contact .ct-step {
  position: relative;
  padding-left: 2.5rem;
  display: grid;
  gap: .3rem;
}

.page-contact .ct-step-dot {
  position: absolute;
  left: 0;
  top: .28rem;
  width: 15px;
  height: 15px;
  border: 1px solid var(--green);
  background: var(--ink-900);
  transform: rotate(45deg);
}

.page-contact .ct-step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--green);
}

.page-contact .ct-step-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .ct-step-text {
  margin: 0;
  max-width: 56ch;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .ct-step-time {
  justify-self: start;
  margin-top: .2rem;
  padding: .18rem .5rem;
  border: 1px solid var(--ct-line-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* 提交字段 */
.page-contact .ct-submit-grid {
  display: grid;
  gap: 1.5rem;
}

.page-contact .ct-fields {
  display: grid;
  gap: .7rem;
}

.page-contact .ct-field {
  background: var(--panel);
  border: 1px solid var(--ct-line);
  border-top: 1px solid var(--ct-line-strong);
  padding: .85rem .95rem;
  display: grid;
  gap: .28rem;
}

.page-contact .ct-field-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-contact .ct-field-desc {
  margin: 0;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .ct-field--wide {
  border-left: 3px solid var(--board);
}

/* 响应节奏 */
.page-contact .ct-sla-grid {
  display: grid;
  gap: 1px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-sla {
  background: var(--panel);
  padding: 1.25rem 1.1rem 1.3rem;
  display: grid;
  gap: .3rem;
}

.page-contact .ct-sla-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5.6vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--orange);
}

.page-contact .ct-sla-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-sla-text {
  margin: .35rem 0 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--silver);
}

/* 内容与合作 */
.page-contact .ct-partner-grid {
  display: grid;
  gap: 1rem;
}

.page-contact .ct-partner {
  position: relative;
  background: linear-gradient(160deg, var(--turf) 0%, var(--panel) 62%);
  border: 1px solid var(--ct-line);
  padding: 1.2rem 1.15rem 1.3rem;
  display: grid;
  gap: .7rem;
  align-content: start;
}

.page-contact .ct-partner-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .ct-partner-text {
  margin: 0;
  font-size: .91rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .ct-partner .btn {
  justify-self: start;
}

.page-contact .ct-tail {
  margin-top: 1.5rem;
  padding: 1.2rem 1.15rem;
  border: 1px solid var(--ct-line-strong);
  background: var(--ct-glass);
  display: grid;
  gap: .9rem;
}

.page-contact .ct-tail-text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .ct-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

@media (min-width: 720px) {
  .page-contact .ct-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-field--wide {
    grid-column: 1 / -1;
  }

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

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

@media (min-width: 900px) {
  .page-contact {
    padding-block: 1.75rem 5rem;
  }

  .page-contact .ct-open {
    padding-block: 2.25rem 3.75rem;
  }

  .page-contact .ct-open-grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .68fr);
    gap: 3rem;
    align-items: end;
  }

  .page-contact .ct-channels-grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-contact .ct-submit-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 2.25rem;
    align-items: start;
  }

  .page-contact .ct-track-list {
    gap: 1.75rem;
  }

  .page-contact .ct-step {
    padding-left: 3.25rem;
  }

  .page-contact .ct-step-dot {
    left: .1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-aside-link {
    transition: none;
  }
}