.page-contact {
  --pc-rule: rgba(127, 169, 160, 0.32);
  --pc-grid: rgba(127, 169, 160, 0.14);
  background: var(--c-cream);
  color: var(--c-stone);
  font-family: var(--font-body);
  font-size: var(--fs-17);
  line-height: 1.85;
  overflow-x: hidden;
}

.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.32;
  color: var(--c-ink);
  margin: 0 0 14px;
}

.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--c-ink);
  margin: 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-breadcrumb {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px var(--gutter) 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--c-mist);
}

.page-contact .contact-breadcrumb a {
  color: var(--c-moss);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .contact-breadcrumb a:hover {
  border-bottom-color: var(--c-gold);
  color: var(--c-grass);
}

.page-contact .contact-breadcrumb span[aria-hidden] {
  color: var(--c-mist);
}

/* ---------- 区块标记 ---------- */
.page-contact .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--c-clay);
}

.page-contact .kicker::before {
  content: "";
  flex: none;
  width: 28px;
  height: 2px;
  background: var(--c-mist);
}

.page-contact .kicker__coord {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c-gold);
  color: var(--c-ink);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(26px, 5vw, 54px) var(--gutter) clamp(30px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.24;
  color: var(--c-ink);
  margin: 14px 0 18px;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 48ch;
  font-size: var(--fs-17);
}

.page-contact .contact-shot {
  margin: 0;
  position: relative;
}

.page-contact .contact-shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--c-mist);
  border-radius: var(--r-c);
  background: var(--c-sand);
}

.page-contact .contact-shot figcaption {
  margin-top: 10px;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--c-mist);
  letter-spacing: 0.04em;
}

/* ---------- 渠道节点（图谱型 tab） ---------- */
.page-contact .channel-nodes {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .channel-node {
  display: grid;
  grid-template-columns: 22px 1fr;
  column-gap: 14px;
  align-items: start;
  width: 100%;
  padding: 20px 4px 20px 0;
  border: 0;
  border-top: 1px dashed var(--pc-rule);
  background: none;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color 180ms var(--ease);
}

.page-contact .channel-node:last-child {
  border-bottom: 1px dashed var(--pc-rule);
}

.page-contact .channel-node:hover {
  background: rgba(242, 217, 166, 0.36);
}

.page-contact .channel-node__dot {
  grid-row: 1 / span 3;
  width: 16px;
  height: 16px;
  margin-top: 9px;
  border-radius: 50%;
  border: 2px solid var(--c-mist);
  background: var(--c-cream);
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease),
    box-shadow 180ms var(--ease);
}

.page-contact .channel-node:hover .channel-node__dot,
.page-contact .channel-node[aria-selected="true"] .channel-node__dot {
  background: var(--c-gold);
  border-color: var(--c-gold);
  box-shadow: 0 0 0 5px rgba(201, 138, 46, 0.16);
}

.page-contact .channel-node__no {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--c-clay);
}

.page-contact .channel-node__label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-22);
  line-height: 1.42;
  color: var(--c-ink);
}

.page-contact .channel-node__value {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-moss);
  word-break: break-word;
}

/* ---------- 渠道详情面板 ---------- */
.page-contact .channel-panels {
  max-width: var(--wrap);
  margin: clamp(24px, 4vw, 42px) auto 0;
  padding: 0 var(--gutter) clamp(48px, 7vw, 84px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-contact .channel-panel {
  position: relative;
  padding: clamp(20px, 2.6vw, 30px);
  border: 2px solid var(--line);
  border-radius: var(--r-a);
  background: var(--c-sand);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease),
    box-shadow 180ms var(--ease);
}

.page-contact .channel-panel:hover {
  border-color: var(--c-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-contact .channel-panel:focus-visible {
  outline: 3px solid var(--c-gold);
  outline-offset: 3px;
}

.page-contact .channel-panel__title {
  font-size: var(--fs-22);
  margin: 0 0 12px;
}

.page-contact .channel-panel__main {
  margin: 0 0 16px;
  padding: 11px 15px;
  background: var(--c-cream);
  border-left: 3px solid var(--c-gold);
  border-radius: 0 14px 14px 0;
  font-family: var(--font-mono);
  font-size: var(--fs-17);
  line-height: 1.7;
  color: var(--c-grass);
  word-break: break-word;
}

.page-contact .channel-panel__list {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-contact .channel-panel__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 6px;
  font-size: var(--fs-14);
  line-height: 1.8;
}

.page-contact .channel-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-mist);
}

.page-contact .channel-panel__note {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-stone);
}

/* ---------- 回复节奏（深青区） ---------- */
.page-contact .contact-rhythm {
  background-color: var(--c-grass);
  background-image:
    repeating-linear-gradient(90deg, var(--pc-grid) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--pc-grid) 0 1px, transparent 1px 96px);
  color: var(--t-on-dark);
  padding: clamp(44px, 6vw, 80px) 0;
}

.page-contact .contact-rhythm__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-contact .contact-rhythm .kicker {
  color: var(--c-gold-soft);
}

.page-contact .contact-rhythm .kicker::before {
  background: rgba(201, 138, 46, 0.7);
}

.page-contact .contact-rhythm h2 {
  color: var(--c-cream);
}

.page-contact .contact-rhythm__lead {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-17);
  color: var(--t-on-dark);
}

.page-contact .rhythm-track {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .rhythm-step {
  position: relative;
  padding-top: 24px;
  border-top: 2px solid rgba(201, 138, 46, 0.55);
}

.page-contact .rhythm-step::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--c-gold);
}

.page-contact .rhythm-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  letter-spacing: 0.06em;
  color: var(--c-gold-soft);
  margin-bottom: 6px;
}

.page-contact .rhythm-step h3 {
  color: var(--c-cream);
  font-size: var(--fs-22);
  margin: 0 0 8px;
}

.page-contact .rhythm-step p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--t-on-dark);
}

/* ---------- 问题分类表 ---------- */
.page-contact .contact-router {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(46px, 7vw, 88px) var(--gutter) clamp(20px, 3vw, 34px);
}

.page-contact .contact-router__lead {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-17);
}

.page-contact .router-table {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .router-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 28px) 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .router-row:last-child {
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .router-row__key h3 {
  font-size: var(--fs-22);
  line-height: 1.42;
}

.page-contact .router-row__tag {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--c-gold-soft);
  color: var(--c-grass);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  line-height: 1.7;
}

.page-contact .router-row__val p {
  margin: 0 0 8px;
  font-size: var(--fs-17);
  line-height: 1.85;
}

.page-contact .router-row__val p:last-child {
  margin-bottom: 0;
}

.page-contact .router-row__val a {
  color: var(--c-moss);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: color 180ms var(--ease);
}

.page-contact .router-row__val a:hover {
  color: var(--c-clay);
}

/* ---------- 留言要素 ---------- */
.page-contact .contact-brief {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(44px, 6vw, 78px) var(--gutter);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .contact-brief__lead {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-17);
}

.page-contact .brief-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-contact .brief-list > li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .brief-list > li:last-child {
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .brief-list__no {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--c-gold);
  padding-top: 4px;
}

.page-contact .brief-list h3 {
  font-size: var(--fs-17);
  margin: 0 0 3px;
}

.page-contact .brief-list p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
}

.page-contact .contact-shot--brief img {
  border-radius: var(--r-b);
}

/* ---------- 地址与到访 ---------- */
.page-contact .contact-visit {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(46px, 7vw, 88px);
}

.page-contact .visit-address {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  border: 2px solid var(--line);
  border-radius: var(--r-b);
  background: var(--c-sand);
}

.page-contact .visit-address__label {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--c-clay);
}

.page-contact .visit-address__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--c-ink);
  word-break: break-word;
}

.page-contact .visit-address__meta {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-stone);
}

.page-contact .visit-details {
  margin-top: 18px;
  border: 2px solid var(--line);
  border-radius: var(--r-a);
  overflow: hidden;
  background: var(--c-cream);
}

.page-contact .visit-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px clamp(18px, 2.4vw, 26px);
  background: var(--c-gold-soft);
  color: var(--c-ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-17);
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .visit-details summary::after {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: -4px;
  border-right: 2px solid var(--c-moss);
  border-bottom: 2px solid var(--c-moss);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease), margin-top 200ms var(--ease);
}

.page-contact .visit-details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.page-contact .visit-details summary:focus-visible {
  outline: 3px solid var(--c-clay);
  outline-offset: -3px;
}

.page-contact .visit-details__body {
  padding: 18px clamp(18px, 2.4vw, 26px) 22px;
  border-top: 1px solid var(--pc-rule);
}

.page-contact .visit-details__body p {
  margin: 0 0 12px;
  font-size: var(--fs-17);
}

.page-contact .visit-details__body ul {
  margin: 0;
  padding-left: 20px;
}

.page-contact .visit-details__body li {
  margin-bottom: 6px;
  font-size: var(--fs-14);
  line-height: 1.85;
}

/* ---------- 页脚前收束 ---------- */
.page-contact .contact-foot {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 24px var(--gutter) clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--pc-rule);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 26px;
}

.page-contact .contact-foot p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.85;
}

.page-contact .contact-foot p a {
  color: var(--c-moss);
  text-underline-offset: 4px;
}

.page-contact .contact-foot p a:hover {
  color: var(--c-clay);
}

.page-contact .contact-top {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--c-grass);
  border: 2px solid var(--c-mist);
  border-radius: 999px;
  padding: 10px 20px;
  white-space: nowrap;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease),
    transform 180ms var(--ease);
}

.page-contact .contact-top:hover {
  border-color: var(--c-gold);
  background: var(--c-gold-soft);
  transform: translateY(-2px);
}

.page-contact .contact-top:focus-visible {
  outline: 3px solid var(--c-gold);
  outline-offset: 3px;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-contact .channel-nodes {
    grid-template-columns: repeat(3, 1fr);
    position: relative;
    border-top: 1px dashed var(--pc-rule);
  }

  .page-contact .channel-node {
    grid-template-columns: 22px 1fr;
    padding: 24px 18px 24px 0;
    border-top: 0;
    border-bottom: 0;
  }

  .page-contact .channel-node:last-child {
    border-bottom: 0;
  }

  .page-contact .channel-node + .channel-node {
    padding-left: 22px;
    border-left: 1px dashed var(--pc-rule);
  }

  .page-contact .rhythm-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .page-contact .rhythm-step + .rhythm-step {
    padding-left: 28px;
    margin-left: 28px;
    border-left: 1px solid rgba(201, 138, 46, 0.28);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-contact .channel-panels {
    grid-template-columns: 1.35fr 1fr 1fr;
    align-items: start;
  }

  .page-contact .router-row {
    grid-template-columns: 5.4fr 6.6fr;
    gap: clamp(20px, 3vw, 46px);
    align-items: start;
  }

  .page-contact .router-row__key {
    text-align: right;
    padding-right: 6px;
  }

  .page-contact .contact-brief {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .contact-shot--brief {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero h1 {
    max-width: 20ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-node,
  .page-contact .channel-node__dot,
  .page-contact .channel-panel,
  .page-contact .contact-top,
  .page-contact .visit-details summary::after {
    transition: none;
  }

  .page-contact .channel-panel:hover,
  .page-contact .contact-top:hover {
    transform: none;
  }
}
<<<END>>>