.page-contact {
  --pc-body: rgba(195, 203, 208, 0.8);
  background: var(--ink);
  color: var(--silver);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 44px) 0;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(31, 122, 110, 0.42), transparent 62%),
    radial-gradient(70% 60% at 0% 0%, rgba(140, 58, 39, 0.22), transparent 70%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-contact .crumbs-nav {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.page-contact .crumbs li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-contact .crumbs li + li::before {
  content: "/";
  color: var(--line-strong);
}

.page-contact .crumbs a {
  color: var(--dim);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.page-contact .crumbs a:hover {
  color: var(--ember);
}

.page-contact .crumbs [aria-current="page"] {
  color: var(--chalk);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(28px, 5vw, 52px);
}

.page-contact .hero-title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--chalk);
  text-wrap: balance;
}

.page-contact .hero-copy .lead {
  margin-top: clamp(16px, 2.2vw, 24px);
  max-width: 34em;
  color: var(--pc-body);
}

.page-contact .hero-meta {
  margin: 0;
  padding: clamp(18px, 2.6vw, 24px) 0 0;
  border-top: 1px solid var(--line-strong);
  display: grid;
  gap: 14px;
}

.page-contact .hero-meta-item {
  display: grid;
  gap: 4px;
}

.page-contact .hero-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-contact .hero-meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(14px, 1.7vw, 17px);
  letter-spacing: 0.02em;
  color: var(--chalk);
  word-break: break-word;
}

.page-contact .hero-media {
  margin: 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(120deg, var(--turf), var(--ink));
  overflow: hidden;
}

.page-contact .hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(190px, 36vw, 440px);
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
}

/* ---------- 双栏：渠道 + 来意 ---------- */
.page-contact .contact-routes {
  background: var(--ink);
}

.page-contact .routes-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(36px, 6vw, 64px);
}

.page-contact .routes-note {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
}

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

.page-contact .channel {
  position: relative;
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.6vw, 26px) clamp(18px, 2.6vw, 24px) clamp(26px, 3.4vw, 34px);
  background: linear-gradient(145deg, rgba(31, 122, 110, 0.24), rgba(14, 59, 56, 0.12) 62%, transparent);
  border: 1px solid var(--line-strong);
  clip-path: polygon(20px 0, 100% 0, 100% 100%, 0 100%, 0 20px);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 0;
  width: 2px;
  background: var(--turf-lit);
}

.page-contact .channel:hover {
  border-color: var(--ember);
  transform: translateY(-2px);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .channel-name {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--dim);
}

.page-contact .channel-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(15px, 2vw, 20px);
  letter-spacing: 0.02em;
  color: var(--chalk);
  word-break: break-word;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pc-body);
}

.page-contact .intent-stack {
  display: grid;
  gap: 10px;
}

.page-contact .intent {
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(14, 59, 56, 0.3);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .intent:hover {
  border-color: var(--ember);
}

.page-contact .intent[data-open="true"] {
  border-color: var(--line-strong);
  background: rgba(14, 59, 56, 0.52);
}

.page-contact .intent-trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  width: 100%;
  padding: 14px 16px;
  background: none;
  border: 0;
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}

.page-contact .intent-trigger:hover .intent-name {
  color: var(--ember);
}

.page-contact .intent-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--fluoro);
}

.page-contact .intent-name {
  font-weight: 700;
  transition: color 180ms var(--ease);
}

.page-contact .intent-tip {
  flex: 1 1 100%;
  padding-left: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-contact .fold-panel-inner {
  padding: 0 16px 16px;
}

.page-contact .intent-lead {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .intent-fields {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .intent-fields li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--pc-body);
}

.page-contact .intent-fields li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--ember);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-rhythm {
  background: var(--wine);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .rhythm-head {
  max-width: 46em;
}

.page-contact .rhythm-lead {
  margin: 0 0 clamp(26px, 4vw, 40px);
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .rhythm-scale {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-contact .rhythm-point {
  position: relative;
  padding: 20px 18px 0 0;
  border-top: 1px solid var(--line-strong);
  transition: border-color 180ms var(--ease);
}

.page-contact .rhythm-point:hover {
  border-top-color: var(--ember);
}

.page-contact .rhythm-point::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--fluoro);
  box-shadow: 0 0 0 3px rgba(200, 255, 77, 0.15);
}

.page-contact .rhythm-time {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(18px, 2.4vw, 22px);
  letter-spacing: 0.02em;
  color: var(--chalk);
}

.page-contact .rhythm-note {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--pc-body);
}

/* ---------- 内容与资料合作 ---------- */
.page-contact .contact-partner {
  background: var(--turf);
  border-bottom: 1px solid var(--line);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
}

.page-contact .partner-intro {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .partner-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .partner-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .partner-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fluoro);
  padding-top: 3px;
}

.page-contact .partner-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--chalk);
}

.page-contact .partner-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pc-body);
}

.page-contact .partner-need {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--ember);
  background: rgba(7, 17, 15, 0.32);
  font-size: 14px;
  line-height: 1.7;
  color: var(--pc-body);
}

.page-contact .partner-media {
  margin: 0;
}

.page-contact .partner-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  filter: saturate(0.9) contrast(1.05);
}

.page-contact .partner-media figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

/* ---------- 支持中心引导 ---------- */
.page-contact .support-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(22px, 3.6vw, 40px);
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, rgba(31, 122, 110, 0.22), rgba(7, 17, 15, 0.42));
}

.page-contact .support-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 64px;
  height: 2px;
  background: var(--fluoro);
}

.page-contact .support-copy p {
  margin: 16px 0 22px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .support-aside-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-contact .support-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .support-links li {
  border-top: 1px solid var(--line);
}

.page-contact .support-links li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .support-links a {
  display: block;
  padding: 12px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--silver);
  text-decoration: none;
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-contact .support-links a:hover {
  color: var(--ember);
  padding-left: 6px;
}

.page-contact .contact-sign {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.page-contact .contact-sign svg {
  flex: none;
  width: 44px;
  height: 28px;
  color: var(--turf-lit);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .rhythm-scale {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .rhythm-point {
    padding-right: 24px;
  }
}

@media (min-width: 880px) {
  .page-contact .support-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .routes-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .intent,
  .page-contact .intent-name,
  .page-contact .rhythm-point,
  .page-contact .support-links a,
  .page-contact .crumbs a {
    transition: none;
  }

  .page-contact .channel:hover {
    transform: none;
  }

  .page-contact .support-links a:hover {
    padding-left: 0;
  }
}
<<<END>>>