.page-contact {
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .crumbs {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .contact-head {
  margin-top: clamp(16px, 2.6vw, 26px);
  padding-bottom: clamp(22px, 3.2vw, 36px);
  border-bottom: var(--border);
}

.page-contact .page-title {
  max-width: 20ch;
}

.page-contact .page-lede {
  max-width: 62ch;
}

/* ---------- 坐标轴 + 主内容 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .contact-axis {
  border-top: var(--border);
  padding-top: 14px;
}

.page-contact .contact-axis .legend-title {
  margin: 0 0 10px;
  color: var(--graphite);
}

.page-contact .contact-axis .axis-list {
  display: flex;
  flex-direction: row;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-contact .contact-axis .axis-list__link {
  white-space: nowrap;
  font-size: var(--step-13);
  letter-spacing: 0.04em;
}

.page-contact .contact-axis .axis-list__link[aria-current="true"] {
  color: var(--maple);
}

.page-contact .contact-flow {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 6vw, 72px);
  min-width: 0;
}

/* ---------- 通用章节标题 ---------- */
.page-contact .contact-section h2 {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-contact .section-lede {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 01 渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--snow);
  border: var(--border);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--maple);
  box-shadow: 0 2px 0 0 var(--maple-soft);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-size: var(--step-21);
  font-weight: 800;
}

.page-contact .channel-card .tag {
  align-self: flex-start;
}

.page-contact .channel-note {
  margin: 0;
  font-size: var(--step-15);
  line-height: 1.72;
  color: var(--graphite);
}

.page-contact .channel-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: var(--step-15);
  line-height: 1.7;
  color: var(--graphite);
}

.page-contact .channel-list li {
  position: relative;
  padding-left: 18px;
}

.page-contact .channel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--fir-soft);
}

.page-contact .channel-phone {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.6vw, 40px);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--maple);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .channel-phone:hover,
.page-contact .channel-phone:focus-visible {
  border-bottom-color: var(--maple);
}

.page-contact .channel-mail {
  font-family: var(--font-mono);
  font-size: var(--step-15);
  letter-spacing: 0.01em;
  line-height: 1.6;
  color: var(--glacier);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid var(--glacier-soft);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .channel-mail:hover,
.page-contact .channel-mail:focus-visible {
  color: var(--maple);
  border-bottom-color: var(--maple);
}

.page-contact .channel-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

/* ---------- 02 小屏查询 ---------- */
.page-contact .contact-section--tint {
  background: var(--snow);
  border: var(--border);
  border-left: 4px solid var(--glacier);
  border-radius: var(--radius);
  padding: clamp(22px, 3.4vw, 42px);
}

.page-contact .self-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(16px, 2.4vw, 26px);
}

.page-contact .self-copy p {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: var(--step-17);
  line-height: 1.78;
}

.page-contact .self-copy p:last-child {
  margin-bottom: 0;
}

.page-contact .self-figure {
  margin: 0;
}

.page-contact .query-note {
  margin-top: clamp(20px, 3vw, 30px);
  padding: 16px 18px;
  background: var(--paper);
  border-left: 3px solid var(--maple);
  border-radius: 0 var(--radius) var(--radius) 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.page-contact .query-note .legend-title {
  margin: 0;
  color: var(--maple);
}

.page-contact .query-note p {
  margin: 0;
  max-width: 64ch;
  font-size: var(--step-15);
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 03 咨询准备 ---------- */
.page-contact .prep-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: var(--border);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-bottom: var(--border);
}

.page-contact .prep-num {
  font-size: var(--step-21);
  font-weight: 700;
  line-height: 1.2;
  color: var(--fir);
}

.page-contact .prep-item h3 {
  margin: 0 0 6px;
  font-size: var(--step-17);
  font-weight: 800;
}

.page-contact .prep-item p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--step-15);
  line-height: 1.75;
  color: var(--graphite);
}

.page-contact .section-cta {
  margin: clamp(22px, 3vw, 30px) 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: var(--step-15);
  color: var(--graphite);
}

/* ---------- 04 来信 ---------- */
.page-contact .mail-card {
  margin-top: clamp(18px, 2.6vw, 28px);
  padding: clamp(20px, 3vw, 32px);
  background: var(--snow);
  border: var(--border);
  border-left: 4px solid var(--maple);
  border-radius: var(--radius);
}

.page-contact .mail-card .legend-title {
  margin: 0;
  color: var(--graphite);
}

.page-contact .mail-addr {
  margin: 8px 0 18px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .mail-card p:not(.legend-title):not(.mail-addr) {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: var(--step-15);
  line-height: 1.78;
  color: var(--graphite);
}

.page-contact .mail-card p:last-child {
  margin-bottom: 0;
}

/* ---------- 05 合作 ---------- */
.page-contact .contact-section--dark {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 3.8vw, 48px);
  background: var(--fir);
  color: var(--paper);
  border-radius: var(--radius);
}

.page-contact .contact-section--dark::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(246, 240, 227, 0.18) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}

.page-contact .contact-section--dark > * {
  position: relative;
  z-index: 1;
}

.page-contact .contact-section--dark .eyebrow {
  color: var(--gold);
}

.page-contact .contact-section--dark h2 {
  color: var(--snow);
}

.page-contact .contact-section--dark h3 {
  margin: 0 0 10px;
  font-size: var(--step-17);
  font-weight: 800;
  color: var(--snow);
}

.page-contact .dark-lede {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: var(--step-17);
  line-height: 1.78;
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(22px, 3.2vw, 34px);
}

.page-contact .partner-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: var(--step-15);
  line-height: 1.7;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 20px;
}

.page-contact .partner-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: var(--step-13);
}

.page-contact .partner-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: var(--step-15);
  line-height: 1.7;
}

.page-contact .partner-steps li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .partner-steps .mono {
  color: var(--gold);
  font-size: var(--step-13);
  flex: none;
}

.page-contact .dark-foot {
  margin: clamp(22px, 3.2vw, 34px) 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(246, 240, 227, 0.24);
  font-size: var(--step-15);
  line-height: 1.75;
}

.page-contact .dark-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .dark-link:hover,
.page-contact .dark-link:focus-visible {
  border-bottom-color: var(--gold);
}

/* ---------- 06 受理与跟进 ---------- */
.page-contact .hours-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .hours-item {
  padding: 18px 20px;
  background: var(--snow);
  border: var(--border);
  border-top: 3px solid var(--fir-soft);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .hours-item:nth-child(2) {
  border-top-color: var(--glacier);
}

.page-contact .hours-item:nth-child(3) {
  border-top-color: var(--maple);
}

.page-contact .hours-item:nth-child(4) {
  border-top-color: var(--gold);
}

.page-contact .hours-item:hover {
  border-left-color: var(--maple);
  border-right-color: var(--maple);
  border-bottom-color: var(--maple);
}

.page-contact .hours-item h3 {
  margin: 0 0 8px;
  font-size: var(--step-17);
  font-weight: 800;
}

.page-contact .hours-item p {
  margin: 0;
  font-size: var(--step-15);
  line-height: 1.75;
  color: var(--graphite);
}

.page-contact .closing-note {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--fir-soft);
  font-size: var(--step-17);
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-contact .channel-card--phone {
    grid-column: 1 / 8;
  }

  .page-contact .channel-card--mail {
    grid-column: 8 / 13;
  }

  .page-contact .channel-card--self {
    grid-column: 3 / 10;
  }

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

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

  .page-contact .prep-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 22px;
  }
}

@media (min-width: 860px) {
  .page-contact .self-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 68px);
  }

  .page-contact .contact-axis {
    position: sticky;
    top: 96px;
    border-top: 0;
    border-left: var(--border);
    padding: 4px 0 4px 16px;
  }

  .page-contact .contact-axis .axis-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 9px;
  }

  .page-contact .contact-axis .axis-list__link {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-phone,
  .page-contact .channel-mail,
  .page-contact .hours-item,
  .page-contact .dark-link {
    transition: none;
  }
}