.page-contact {
  --contact-hair: var(--base-700);
  --contact-ink-soft: rgba(36, 26, 22, 0.7);
  --contact-ink-faint: rgba(36, 26, 22, 0.16);
  position: relative;
  isolation: isolate;
  padding-bottom: clamp(64px, 10vw, 128px);
  background:
    radial-gradient(900px 460px at 92% -8%, rgba(79, 227, 208, 0.07), transparent 62%),
    radial-gradient(680px 420px at -12% 26%, rgba(232, 181, 75, 0.05), transparent 66%);
}

.page-contact .contact-crumb {
  padding-top: clamp(20px, 4vw, 44px);
}

/* 首屏：书信式左右分栏 */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(26px, 5vw, 64px);
  align-items: start;
}

.page-contact .contact-hero__kicker {
  margin: 0 0 16px;
}

.page-contact .contact-hero h1 {
  margin: 0 0 20px;
}

.page-contact .contact-hero .lead {
  margin: 0 0 28px;
  max-width: 31em;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 奶油纸联系卡 */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 36px);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.42);
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(0deg, rgba(36, 26, 22, 0.05) 0 1px, transparent 1px 4px);
  opacity: 0.55;
}

.page-contact .contact-card__kicker {
  position: relative;
  z-index: 1;
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--contact-ink-soft);
}

.page-contact .contact-card__mail {
  position: relative;
  z-index: 1;
  margin: 0 0 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--contact-ink-faint);
  font-family: var(--font-data);
  font-size: clamp(14px, 2.5vw, 18px);
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__row {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-card__key {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--contact-ink-soft);
}

.page-contact .contact-card__value {
  font-family: var(--font-data);
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .contact-card__note {
  position: relative;
  z-index: 1;
  margin: 20px 0 0;
  padding-left: 13px;
  border-left: 2px solid var(--alert);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--contact-ink-soft);
}

/* 本页路线 */
.page-contact .contact-route {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  margin-top: clamp(40px, 7vw, 84px);
  padding-block: 16px;
  border-top: 1px solid var(--contact-hair);
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .contact-route__label {
  margin: 0;
  color: var(--muted);
}

.page-contact .contact-route__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-route__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .contact-route__list a:hover,
.page-contact .contact-route__list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-route__list .data {
  color: var(--cyan-dim);
  font-size: 12px;
}

/* 章节通用 */
.page-contact .contact-block {
  padding-top: clamp(52px, 8vw, 104px);
}

.page-contact .contact-block__eyebrow {
  margin: 0 0 14px;
  color: var(--cyan-dim);
}

.page-contact .contact-block h2 {
  margin: 0 0 22px;
  max-width: 24ch;
}

.page-contact .prose p {
  margin: 0 0 16px;
}

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

.page-contact .contact-template__tail {
  margin-top: clamp(24px, 4vw, 36px);
}

/* 01 联系渠道 */
.page-contact .contact-channel {
  display: grid;
  gap: clamp(26px, 4.5vw, 46px);
  margin-top: clamp(22px, 4vw, 38px);
  align-items: start;
}

.page-contact .contact-topic {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .contact-topic li {
  position: relative;
  padding: 16px 0 16px 24px;
  border-bottom: 1px solid var(--contact-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-topic li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 25px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(79, 227, 208, 0.14);
}

.page-contact .contact-topic strong {
  color: var(--text);
  font-weight: 600;
}

/* 02 提交清单 */
.page-contact .contact-template {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  margin-top: clamp(22px, 4vw, 38px);
  align-items: start;
}

.page-contact .contact-fields {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .contact-fields li {
  display: grid;
  gap: 6px;
  padding: 17px 0;
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .contact-fields__key {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .contact-fields__val {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

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

.page-contact .contact-figure,
.page-contact .contact-foot .media {
  border: 1px solid var(--contact-hair);
  border-radius: 3px;
  padding: 10px;
  background: var(--base-900);
}

.page-contact .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.04);
}

.page-contact .media__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 03 处理顺序 */
.page-contact .contact-order {
  display: grid;
  gap: clamp(26px, 4.5vw, 46px);
  margin-top: clamp(22px, 4vw, 38px);
  align-items: center;
}

.page-contact .contact-flow {
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--contact-hair);
  border-radius: 3px;
  background: linear-gradient(160deg, var(--base-900), var(--base-950));
}

.page-contact .contact-flow svg {
  display: block;
  width: 100%;
  height: auto;
}

/* 04 受理边界 */
.page-contact .contact-scope {
  margin: clamp(22px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-scope li {
  position: relative;
  padding: 18px 0 18px 20px;
  border-bottom: 1px solid var(--contact-hair);
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-scope li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--alert);
}

.page-contact .contact-scope strong {
  display: block;
  margin-bottom: 4px;
  color: var(--alert-soft);
  font-weight: 600;
  font-size: 15px;
}

/* 05 口径异议 */
.page-contact .contact-steps {
  counter-reset: cs;
  margin: clamp(22px, 3.5vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-steps li {
  position: relative;
  padding: 0 0 24px 42px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-steps li::before {
  counter-increment: cs;
  content: counter(cs, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .contact-steps li::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 24px;
  bottom: 0;
  width: 1px;
  background: var(--contact-hair);
}

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

.page-contact .contact-steps li:last-child::after {
  display: none;
}

/* 底部氛围图 */
.page-contact .contact-foot {
  margin-top: clamp(52px, 8vw, 96px);
}

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

/* 平板及以上 */
@media (min-width: 640px) {
  .page-contact .contact-fields li {
    grid-template-columns: 164px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* 桌面分栏 */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.28fr) minmax(300px, 0.72fr);
    gap: clamp(40px, 6vw, 84px);
  }

  .page-contact .contact-channel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-template {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }

  .page-contact .contact-order {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-route__list a {
    transition: none;
  }
}