.page-contact {
  display: block;
  background: var(--white);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 6vw, 76px);
  background: linear-gradient(180deg, var(--snow) 0%, rgba(234, 245, 253, 0) 78%);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-contact .ct-hero-head {
  max-width: 880px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .ct-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--blue);
}

.page-contact .ct-hero-title {
  margin: 0 0 20px;
  font-size: clamp(46px, 9vw, 104px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--navy);
}

.page-contact .ct-hero-lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
  color: var(--gray);
}

.page-contact .ct-hero-media {
  position: relative;
  margin: 0 0 22px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .ct-hero-media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--mist) 42%, rgba(127, 196, 242, 0) 100%);
}

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

.page-contact .ct-hero-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-contact .ct-strip-label {
  color: var(--gray);
}

.page-contact .ct-strip-time {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
}

.page-contact .ct-strip-note {
  flex-basis: 100%;
  color: var(--gray);
}

/* ---------- 联系面板 ---------- */
.page-contact .ct-panel-section {
  padding: clamp(48px, 7vw, 92px) 0 clamp(32px, 5vw, 56px);
  background: var(--white);
}

.page-contact .ct-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: clamp(22px, 4vw, 44px);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, var(--white) 0%, var(--snow) 100%);
}

.page-contact .ct-panel-index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .ct-panel-title {
  position: relative;
  margin: 0 0 22px;
  padding-bottom: 14px;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--navy);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-panel-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 56px;
  height: 2px;
  background: var(--orange);
}

.page-contact .ct-panel-lead {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

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

.page-contact .ct-fact + .ct-fact {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-fact-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--blue);
}

.page-contact .ct-fact-val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-fact-val--mono {
  letter-spacing: 0.02em;
}

.page-contact .ct-fact-note {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-contact .ct-link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 127, 214, 0.35);
  transition: color 160ms ease, border-color 160ms ease;
}

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

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

/* 准备清单折叠组 */
.page-contact .ct-disclosure {
  margin-top: 4px;
  border: 1px solid var(--line);
  background: var(--white);
}

.page-contact .ct-disclosure .disclosure-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  text-align: left;
  cursor: pointer;
}

.page-contact .ct-disc-sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-contact .ct-disc-sign::before,
.page-contact .ct-disc-sign::after {
  content: "";
  position: absolute;
  background: var(--blue);
  transition: transform 180ms ease;
}

.page-contact .ct-disc-sign::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-contact .ct-disc-sign::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-contact .ct-disclosure .disclosure-btn[aria-expanded="true"] .ct-disc-sign::after {
  transform: scaleY(0);
}

.page-contact .disclosure-panel {
  display: block;
}

.page-contact .disclosure-panel[hidden] {
  display: none;
}

.page-contact .ct-checklist {
  margin: 0;
  padding: 2px 16px 18px;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .ct-checklist li {
  position: relative;
  margin-top: 14px;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--gray);
}

.page-contact .ct-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 2px;
  background: var(--blue);
}

.page-contact .ct-template {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange-lt);
  background: var(--navy);
}

.page-contact .ct-template-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .ct-template-pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.95;
  color: var(--white);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.page-contact .ct-panel-visual {
  position: relative;
  margin: clamp(32px, 5vw, 60px) 0 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

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

.page-contact .ct-panel-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 26, 46, 0.42) 0%, rgba(6, 26, 46, 0.06) 58%, rgba(226, 82, 27, 0.22) 100%);
  pointer-events: none;
}

/* ---------- 渠道详解 ---------- */
.page-contact .ct-topic {
  padding: clamp(40px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.page-contact .ct-topic--alt {
  background: var(--snow);
}

.page-contact .ct-topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .ct-topic-num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .ct-topic-title {
  margin: 0;
  font-size: clamp(22px, 2.7vw, 30px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.page-contact .ct-topic-body p {
  max-width: 62ch;
  margin: 0 0 18px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-contact .ct-topic-side {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-side-key {
  margin: 16px 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--blue);
}

.page-contact .ct-side-key:first-child {
  margin-top: 0;
}

.page-contact .ct-side-val {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-contact .ct-side-val--mono {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 尾部入口 ---------- */
.page-contact .ct-tail {
  padding: clamp(48px, 7vw, 96px) 0 clamp(96px, 12vw, 176px);
  background: var(--white);
  border-top: 1px solid var(--line);
}

.page-contact .ct-tail-title {
  margin: 0 0 26px;
  font-size: clamp(20px, 2.3vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.page-contact .ct-tail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-tail-card {
  display: block;
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: var(--white);
  text-decoration: none;
  box-shadow: var(--shadow-s);
  transition: box-shadow 180ms ease, border-color 180ms ease;
}

.page-contact .ct-tail-card:hover,
.page-contact .ct-tail-card:focus-visible {
  border-color: var(--orange);
  box-shadow: inset 0 0 0 1px var(--orange), var(--shadow-m);
}

.page-contact .ct-tail-key {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--blue);
}

.page-contact .ct-tail-desc {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-contact .ct-tail-note {
  margin: 26px 0 0;
  max-width: 68ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .ct-panel {
    grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr);
    gap: 0;
    padding: 0;
  }

  .page-contact .ct-panel-col {
    padding: clamp(30px, 3.6vw, 52px);
  }

  .page-contact .ct-panel-col--right {
    background: rgba(255, 255, 255, 0.72);
  }

  .page-contact .ct-rail {
    display: block;
    position: relative;
    width: 1px;
    background: var(--line);
    justify-self: center;
  }

  .page-contact .ct-rail-tick {
    position: absolute;
    left: 50%;
    padding: 5px 0;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--mist);
    background: var(--white);
    transform: translateX(-50%);
  }

  .page-contact .ct-rail-tick:nth-child(1) { top: 13%; }
  .page-contact .ct-rail-tick:nth-child(2) { top: 38%; }
  .page-contact .ct-rail-tick:nth-child(3) { top: 63%; }
  .page-contact .ct-rail-tick:nth-child(4) { top: 88%; }

  .page-contact .ct-topic-grid {
    grid-template-columns: minmax(0, 216px) minmax(0, 1fr) minmax(0, 248px);
    gap: clamp(28px, 4vw, 60px);
    align-items: start;
  }

  .page-contact .ct-topic-side {
    padding-top: 0;
    padding-left: 20px;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-contact .ct-tail-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-hero-title {
    max-width: 12ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-link,
  .page-contact .ct-disc-sign::before,
  .page-contact .ct-disc-sign::after,
  .page-contact .ct-tail-card {
    transition: none;
  }
}