.page-contact {
  --pc-line: var(--ink-700);
  --pc-panel: var(--ink-800);
  --pc-cyan: var(--cyan-500);
  position: relative;
  background:
    radial-gradient(120% 62% at 12% -8%, rgba(43, 245, 200, 0.10), transparent 58%),
    radial-gradient(90% 48% at 100% 4%, rgba(255, 90, 43, 0.07), transparent 62%),
    var(--ink-900);
  color: var(--chalk-50);
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding-top: clamp(26px, 4vw, 44px);
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cyan-200);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--chalk-50);
  text-wrap: balance;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .contact-hero__meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--pc-line);
  display: grid;
  gap: 10px;
}

.page-contact .contact-hero__meta-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  font-size: 13px;
}

.page-contact .contact-hero__meta-k {
  color: var(--mist-400);
  letter-spacing: 0.04em;
}

.page-contact .contact-hero__meta-v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--chalk-50);
  text-align: right;
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(36px, 5vw, 80px);
    align-items: end;
  }
}

/* ---------- 章节骨架 ---------- */
.page-contact .pc-block {
  padding: clamp(40px, 6vw, 78px) 0;
}

.page-contact .pc-eyebrow {
  margin: 0 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan-200);
}

.page-contact .pc-eyebrow::before {
  content: "";
  width: 22px;
  height: 1.5px;
  background: var(--pc-cyan);
}

.page-contact .pc-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--chalk-50);
  text-wrap: balance;
}

.page-contact .pc-lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ---------- 三类入口 ---------- */
.page-contact .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(26px, 3.6vw, 42px);
}

@media (min-width: 780px) {
  .page-contact .path-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .path-card {
  --pc-edge: var(--cyan-500);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  border-top: 3px solid var(--pc-edge);
  border-radius: var(--r-md);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}

.page-contact .path-card--device {
  --pc-edge: var(--cyan-200);
}

.page-contact .path-card--partner {
  --pc-edge: var(--ember-500);
}

@media (hover: hover) {
  .page-contact .path-card:hover {
    transform: translateY(-4px);
    border-color: var(--pc-edge);
  }
}

.page-contact .path-card__kicker {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--pc-edge);
}

.page-contact .path-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  color: var(--chalk-50);
}

.page-contact .path-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .path-card__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--pc-line);
  display: grid;
  gap: 7px;
}

.page-contact .path-card__list li {
  position: relative;
  padding-left: 15px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist-400);
}

.page-contact .path-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 1.5px;
  background: var(--pc-edge);
  opacity: 0.75;
}

.page-contact .path-card__link {
  margin-top: auto;
  padding-top: 14px;
  align-self: flex-start;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--cyan-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 245, 200, 0.35);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .path-card__link:hover,
.page-contact .path-card__link:focus-visible {
  color: var(--cyan-500);
  border-color: var(--cyan-500);
}

.page-contact .path-figure {
  margin: clamp(30px, 4.4vw, 52px) 0 0;
}

.page-contact .path-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  border: 1px solid var(--pc-line);
}

/* ---------- 勘误材料清单 ---------- */
.page-contact .errata-head {
  display: grid;
  gap: 8px;
}

.page-contact .errata-head__lead {
  margin-top: 12px;
}

@media (min-width: 960px) {
  .page-contact .errata-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    column-gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .errata-head__lead {
    margin-top: 0;
  }
}

.page-contact .check-list {
  list-style: none;
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .check-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .check-list__num {
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan-500);
  letter-spacing: 0.06em;
  padding-top: 3px;
}

.page-contact .check-list__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--chalk-50);
}

.page-contact .check-list__text {
  margin: 8px 0 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

/* ---------- 合作 ---------- */
.page-contact .partner-panel {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(22px, 3.2vw, 38px);
  background:
    linear-gradient(135deg, rgba(43, 245, 200, 0.08), transparent 46%),
    var(--pc-panel);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
}

@media (min-width: 960px) {
  .page-contact .partner-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(32px, 4.5vw, 64px);
  }
}

.page-contact .partner-ways {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

@media (min-width: 700px) {
  .page-contact .partner-ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-contact .partner-ways__item {
  padding: 16px 0 0;
  border-top: 1.5px solid var(--ember-500);
}

.page-contact .partner-ways__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.45;
  color: var(--chalk-50);
}

.page-contact .partner-ways__text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .partner-panel__side {
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--ink-900);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-md);
}

.page-contact .partner-panel__side-k {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ember-300);
}

.page-contact .partner-panel__side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .partner-panel__side-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-contact .partner-panel__side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1.5px;
  background: var(--cyan-500);
}

.page-contact .partner-panel__side-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pc-line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist-400);
}

/* ---------- 响应节奏 ---------- */
.page-contact .timeline {
  list-style: none;
  margin: clamp(26px, 3.6vw, 44px) 0 0;
  padding: 0 0 0 26px;
  display: grid;
  border-left: 1px solid var(--pc-line);
}

.page-contact .timeline__item {
  position: relative;
  padding: 0 0 clamp(24px, 3vw, 34px);
}

.page-contact .timeline__item:last-child {
  padding-bottom: 0;
}

.page-contact .timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-500);
  box-shadow: 0 0 0 3px rgba(43, 245, 200, 0.16);
}

.page-contact .timeline__k {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist-400);
}

.page-contact .timeline__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
  color: var(--chalk-50);
}

.page-contact .timeline__text {
  margin: 8px 0 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.4vw, 38px);
}

@media (min-width: 780px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 26px);
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-md);
}

.page-contact .channel-card__k {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cyan-200);
}

.page-contact .channel-card__v {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.5;
  color: var(--chalk-50);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__v--addr {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15.5px;
  letter-spacing: 0.01em;
}

.page-contact .channel-card__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--pc-line);
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist-400);
}

/* ---------- 在线留言 ---------- */
.page-contact .message-panel {
  margin-top: clamp(24px, 3.4vw, 38px);
  background: rgba(155, 255, 232, 0.06);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-contact .message-panel__media {
  margin: 0;
}

.page-contact .message-panel__media img {
  display: block;
  width: 100%;
  height: clamp(180px, 26vw, 320px);
  object-fit: cover;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .message-panel__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(20px, 3.2vw, 38px);
}

@media (min-width: 980px) {
  .page-contact .message-panel__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(28px, 4vw, 56px);
  }
}

.page-contact .field-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .field-list__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .field-list__num {
  font-size: 12px;
  font-weight: 700;
  color: var(--cyan-500);
  padding-top: 3px;
}

.page-contact .field-list__label {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--chalk-50);
}

.page-contact .field-list__req {
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid rgba(43, 245, 200, 0.45);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan-200);
}

.page-contact .field-list__text {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-contact .receipt-card {
  align-self: start;
  padding: clamp(20px, 2.6vw, 26px);
  background: var(--pc-panel);
  border: 1px solid var(--pc-line);
  border-left: 3px solid var(--cyan-500);
  border-radius: var(--r-md);
}

.page-contact .receipt-card__k {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cyan-200);
}

.page-contact .receipt-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .receipt-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--text-soft);
}

.page-contact .receipt-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1.5px;
  background: var(--cyan-500);
}

.page-contact .receipt-card__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pc-line);
  font-size: 12.5px;
  line-height: 1.78;
  color: var(--mist-400);
}

.page-contact .receipt-card__foot a {
  color: var(--cyan-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 245, 200, 0.32);
}

.page-contact .receipt-card__foot a:hover,
.page-contact .receipt-card__foot a:focus-visible {
  color: var(--cyan-500);
  border-color: var(--cyan-500);
}

/* ---------- 窄屏收尾 ---------- */
@media (max-width: 520px) {
  .page-contact .contact-hero__meta-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
  }

  .page-contact .contact-hero__meta-v {
    text-align: left;
  }

  .page-contact .timeline {
    padding-left: 20px;
  }

  .page-contact .timeline__item::before {
    left: -24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .path-card {
    transition: none;
  }
}
</final>