.page-contact {
  --pc-gap: clamp(20px, 3vw, 40px);
  --pc-rail-w: 236px;
  padding-top: clamp(18px, 2.6vw, 30px);
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.4vw, 46px);
  border-radius: var(--radius);
  background-image:
    radial-gradient(circle at 88% 8%, rgba(33, 230, 210, 0.14), transparent 46%),
    radial-gradient(circle at 4% 96%, rgba(122, 92, 255, 0.16), transparent 44%);
  background-color: var(--deep);
}

.page-contact .contact-hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

.page-contact .contact-hero .index-num {
  color: var(--orange);
  font-weight: 700;
}

.page-contact .contact-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--cream-warm);
  max-width: 20em;
}

.page-contact .contact-lead {
  margin: 0;
  max-width: var(--measure);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-contact .channel-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(12px, 1.6vw, 18px);
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-top-width: 2px;
  border-radius: var(--radius);
  background: var(--glass);
  min-width: 0;
}

.page-contact .channel-block--mail { border-top-color: var(--cyan); }
.page-contact .channel-block--phone { border-top-color: var(--orange); }
.page-contact .channel-block--visit { border-top-color: var(--mint); }

.page-contact .channel-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.page-contact .channel-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.page-contact .channel-block--mail .channel-tag { color: var(--cyan); }
.page-contact .channel-block--phone .channel-tag { color: var(--orange); }
.page-contact .channel-block--visit .channel-tag { color: var(--mint); }

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 19px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--cream-warm);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-block--visit .channel-value {
  font-size: 15px;
  line-height: 1.65;
}

.page-contact .channel-use {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .channel-meta {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

/* ---------- 主体两栏 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(34px, 5vw, 68px);
}

.page-contact .contact-canvas {
  min-width: 0;
}

.page-contact .rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

.page-contact .rail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .rail-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--glass);
  font-size: 14px;
  text-decoration: none;
  color: var(--ink-dim);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .rail-list a:hover,
.page-contact .rail-list a:focus-visible {
  color: var(--cyan);
  border-color: rgba(33, 230, 210, 0.55);
}

.page-contact .rail-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}

.page-contact .rail-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-faint);
}

.page-contact .rail-note a,
.page-contact .inline-note a,
.page-contact .contact-lead a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(33, 230, 210, 0.4);
  text-underline-offset: 3px;
}

.page-contact .rail-note a:hover,
.page-contact .inline-note a:hover {
  color: var(--cream-warm);
}

/* ---------- 章节 ---------- */
.page-contact .contact-section {
  margin-top: clamp(30px, 4vw, 54px);
  padding-top: clamp(30px, 4vw, 54px);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-contact .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 22px);
  align-items: start;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-contact .section-num {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-contact .section-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 33px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--cream-warm);
}

.page-contact .section-sub {
  margin: 0;
  max-width: var(--measure);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-contact .contact-section .media-frame {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .inline-note {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  padding-left: 14px;
  border-left: 2px solid rgba(33, 230, 210, 0.4);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-dim);
}

/* ---------- 渠道对照表 ---------- */
.page-contact .route-table {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--glass);
}

.page-contact .route-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 16px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .route-row:first-child {
  border-top: 0;
}

.page-contact .route-row--head {
  display: none;
  background: var(--glass-strong);
}

.page-contact .route-row--head span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.page-contact .route-type {
  font-size: 15px;
  font-weight: 600;
  color: var(--cream-warm);
}

.page-contact .route-ch {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
}

.page-contact .route-need {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-dim);
}

/* ---------- 反馈要点：奶油实色面板 ---------- */
.page-contact .contact-steps {
  counter-reset: st;
  margin: 0;
  padding: clamp(18px, 2.4vw, 30px);
  list-style: none;
  display: grid;
  gap: 16px;
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--brown);
  box-shadow: var(--shadow-deep);
}

.page-contact .contact-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-contact .contact-steps li::before {
  counter-increment: st;
  content: counter(st, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 24px;
  border-radius: 4px;
  background: var(--orange);
  color: var(--brown);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-contact .step-body strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--brown);
}

.page-contact .step-body span {
  display: block;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(36, 28, 24, 0.78);
}

/* ---------- 时效刻度 ---------- */
.page-contact .sla-track {
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-contact .sla-node {
  position: relative;
  padding-left: 34px;
}

.page-contact .sla-node::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(33, 230, 210, 0.14);
}

.page-contact .sla-node::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: -20px;
  width: 2px;
  background: linear-gradient(var(--steel), rgba(58, 74, 107, 0));
}

.page-contact .sla-node:last-child::after {
  display: none;
}

.page-contact .sla-tag {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .sla-node p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 合作对接 ---------- */
.page-contact .coop-list {
  margin: 0;
  padding: 0 0 0 clamp(14px, 2vw, 22px);
  list-style: none;
  display: grid;
  gap: 18px;
  border-left: 2px solid rgba(122, 92, 255, 0.55);
}

.page-contact .coop-list strong {
  display: block;
  margin-bottom: 5px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--cream-warm);
}

.page-contact .coop-list span {
  display: block;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 到访折叠 ---------- */
.page-contact .contact-fold {
  position: relative;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background-color: var(--deep);
  background-image: repeating-linear-gradient(
    135deg,
    rgba(33, 230, 210, 0.045) 0 2px,
    transparent 2px 12px
  );
  overflow: hidden;
}

.page-contact .contact-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--cyan);
}

.page-contact .contact-fold summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-fold summary::after {
  content: "+";
  flex: none;
  font-size: 18px;
  line-height: 1;
  color: var(--ink-faint);
}

.page-contact .contact-fold[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-contact .contact-fold summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-contact .fold-body {
  padding: 0 20px 22px;
}

.page-contact .visit-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-contact .visit-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.page-contact .visit-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.page-contact .visit-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-dim);
  overflow-wrap: anywhere;
}

.page-contact .contact-foot-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-faint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .route-row {
    grid-template-columns: 1.1fr 0.75fr 1.5fr;
    align-items: baseline;
    gap: 18px;
    padding: 15px 20px;
  }

  .page-contact .route-row--head {
    display: grid;
  }

  .page-contact .visit-list li {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 16px;
  }

  .page-contact .visit-tag {
    padding-top: 3px;
  }
}

@media (min-width: 900px) {
  .page-contact .sla-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(16px, 2.5vw, 28px);
  }

  .page-contact .sla-node {
    padding-left: 0;
    padding-top: 34px;
  }

  .page-contact .sla-node::before {
    left: 0;
    top: 4px;
    width: 14px;
    height: 14px;
  }

  .page-contact .sla-node::after {
    left: 22px;
    right: calc(clamp(16px, 2.5vw, 28px) * -1);
    top: 10px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, var(--steel), rgba(58, 74, 107, 0));
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--pc-rail-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .page-contact .rail-list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-contact .rail-list a {
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
  }

  .page-contact .rail-list a:hover,
  .page-contact .rail-list a:focus-visible {
    border-left-color: var(--orange);
    background: rgba(15, 23, 51, 0.55);
  }
}
<<<END>>>