.page-contact {
  --contact-gap: 28px;
  --contact-radius: 0px;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  letter-spacing: -0.02em;
  line-height: 1.28;
  margin: 0;
}

.page-contact p {
  margin: 0;
  line-height: 1.9;
}

.page-contact .eyebrow {
  margin-bottom: 14px;
}

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

.page-contact .section-head {
  max-width: 62ch;
  margin-bottom: 34px;
}

.page-contact .section-head h2 {
  font-size: 30px;
  font-weight: 900;
  margin-bottom: 14px;
}

.page-contact .section-head__lede {
  font-size: 17px;
  color: var(--gray);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: calc(var(--header-h) + 42px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(193, 18, 31, 0.05), rgba(252, 251, 249, 0) 62%),
    var(--paper);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 40px;
  padding: 26px 0 58px;
}

.page-contact .contact-hero__intro h1 {
  font-size: 34px;
  font-weight: 900;
  margin-bottom: 20px;
}

.page-contact .contact-hero__intro .lede {
  max-width: 34em;
  font-size: 17px;
  color: var(--ink);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 32px 0 0;
  border-top: 1px solid var(--line-mid);
}

.page-contact .hero-meta__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .hero-meta dt {
  font-size: 14px;
  color: var(--gray);
}

.page-contact .hero-meta dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink);
}

/* 页脚入口锚点视觉 */
.page-contact .hero-anchor {
  position: relative;
  padding: 26px 24px 22px;
  border: 1px solid var(--line-mid);
  background: var(--red-deep);
  color: var(--paper);
  background-image:
    repeating-linear-gradient(90deg, rgba(252, 251, 249, 0.09) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(0deg, rgba(252, 251, 249, 0.06) 0 1px, transparent 1px 32px);
}

.page-contact .hero-anchor__tag {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 22px;
}

.page-contact .hero-anchor__mock {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 18px;
  border: 1px dashed rgba(252, 251, 249, 0.35);
}

.page-contact .hero-anchor__line {
  display: block;
  width: 62%;
  height: 6px;
  background: rgba(252, 251, 249, 0.24);
}

.page-contact .hero-anchor__line--short {
  width: 34%;
}

.page-contact .hero-anchor__entry {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  padding: 10px 16px;
  background: var(--red);
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid rgba(252, 251, 249, 0.4);
}

.page-contact .hero-anchor__dot {
  width: 9px;
  height: 9px;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.28);
}

.page-contact .hero-anchor__note {
  margin-top: 20px;
  font-size: 14px;
  color: rgba(252, 251, 249, 0.82);
}

.page-contact .hero-anchor__path {
  margin-top: 12px;
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.04em;
}

/* ---------- 苹果设备 ---------- */
.page-contact .contact-apple {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .apple-grid {
  display: grid;
  gap: 36px;
}

.page-contact .apple-grid__body h2 {
  font-size: 27px;
  font-weight: 900;
  margin-bottom: 18px;
}

.page-contact .apple-grid__body p + p {
  margin-top: 15px;
}

.page-contact .apple-grid__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .apple-steps {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-mid);
}

.page-contact .apple-steps__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .apple-steps__num {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--red);
  letter-spacing: 0.08em;
}

.page-contact .apple-steps__text {
  font-size: 15px;
}

.page-contact .apple-figure {
  margin: 0;
  border: 1px solid var(--line-mid);
  background: var(--paper);
}

.page-contact .apple-figure .figure__frame {
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.page-contact .apple-figure img,
.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  padding: 26px 22px 22px;
  border: 1px solid var(--line-mid);
  border-top: 3px solid var(--red);
  background: var(--paper);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-contact .channel-card--cyan {
  border-top-color: var(--cyan);
}

.page-contact .channel-card--gold {
  border-top-color: var(--gold);
}

.page-contact .channel-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-contact .channel-card__num {
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gray);
  margin-bottom: 14px;
}

.page-contact .channel-card__title {
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 12px;
}

.page-contact .channel-card__value {
  display: inline-block;
  font-size: 14px;
  padding: 6px 10px;
  background: var(--red-mist);
  color: var(--ink);
  word-break: break-all;
}

.page-contact .channel-card--cyan .channel-card__value {
  background: var(--cyan-mist);
}

.page-contact .channel-card--gold .channel-card__value {
  background: var(--gold-mist);
}

.page-contact .channel-card__use {
  margin-top: 16px;
  font-size: 15px;
  color: var(--ink);
}

.page-contact .channel-card__when {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--gray);
}

.page-contact .channel-foot {
  margin-top: 26px;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
  font-size: 15px;
  color: var(--gray);
}

/* ---------- 企业反馈 ---------- */
.page-contact .contact-enterprise {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .flow-wrap {
  margin-bottom: 30px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-contact .flow__node {
  position: relative;
  padding: 0 0 26px 30px;
  border-left: 1px solid var(--line-mid);
}

.page-contact .flow__node:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .flow__dot {
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  background: var(--paper);
  border: 2px solid var(--red);
}

.page-contact .flow__node:nth-child(2) .flow__dot {
  border-color: var(--cyan);
}

.page-contact .flow__node:nth-child(3) .flow__dot {
  border-color: var(--gold);
}

.page-contact .flow__node:nth-child(4) .flow__dot {
  border-color: var(--red-deep);
}

.page-contact .flow__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray);
  margin-bottom: 6px;
}

.page-contact .flow__title {
  font-size: 18px;
  font-weight: 900;
  margin-bottom: 8px;
}

.page-contact .flow__desc {
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 12px;
  max-width: 40em;
}

.page-contact .flow-figure {
  margin: 0 0 32px;
  border: 1px solid var(--line-mid);
  background: var(--paper);
}

.page-contact .flow-figure .figure__frame {
  aspect-ratio: 1200 / 560;
  overflow: hidden;
}

.page-contact .enterprise-notes {
  display: grid;
  gap: 18px;
}

.page-contact .enterprise-note {
  padding: 20px 20px 18px;
  border: 1px solid var(--line-mid);
  background: var(--paper);
}

.page-contact .enterprise-note h3 {
  font-size: 17px;
  font-weight: 900;
  margin-bottom: 10px;
  color: var(--cyan-deep);
}

.page-contact .enterprise-note p {
  font-size: 15px;
  color: var(--gray);
}

/* ---------- 响应时效 ---------- */
.page-contact .contact-speed {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .speed-grid {
  display: grid;
  gap: 32px;
}

.page-contact .speed-baseline {
  padding: 24px 22px;
  background: var(--gold-mist);
  border: 1px solid rgba(201, 162, 39, 0.42);
}

.page-contact .speed-baseline__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(20, 22, 26, 0.12);
}

.page-contact .speed-baseline__row:last-of-type {
  border-bottom: none;
}

.page-contact .speed-baseline__k {
  font-size: 14px;
  color: var(--ink);
}

.page-contact .speed-baseline__v {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .speed-baseline__note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(20, 22, 26, 0.2);
  font-size: 14px;
  color: var(--gray);
}

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

.page-contact .tier-item {
  border-bottom: 1px solid var(--line-mid);
}

.page-contact .tier-item details {
  padding: 0;
}

.page-contact .tier-item summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .tier-item summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 18px;
  color: var(--red);
  line-height: 1;
}

.page-contact .tier-item details[open] summary::after {
  content: "–";
}

.page-contact .tier-item__name {
  font-size: 18px;
  font-weight: 900;
}

.page-contact .tier-item__hint {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray);
  margin-left: auto;
  margin-right: 14px;
}

.page-contact .tier-item p {
  padding: 0 4px 20px;
  font-size: 15px;
  color: var(--gray);
  max-width: 46em;
}

/* ---------- 服务地区 ---------- */
.page-contact .contact-geo {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .geo-grid {
  display: grid;
  gap: 32px;
}

.page-contact .geo-grid__body h2 {
  font-size: 27px;
  font-weight: 900;
  margin-bottom: 18px;
}

.page-contact .geo-grid__body p {
  font-size: 16px;
  color: rgba(252, 251, 249, 0.82);
}

.page-contact .geo-grid__body p + p {
  margin-top: 14px;
}

.page-contact .geo-facts {
  margin: 0;
  border-top: 1px solid rgba(252, 251, 249, 0.24);
}

.page-contact .geo-facts__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(252, 251, 249, 0.16);
}

.page-contact .geo-facts dt {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-contact .geo-facts dd {
  margin: 0;
  font-size: 15px;
  color: var(--paper);
}

/* ---------- 结尾 ---------- */
.page-contact .contact-cta {
  padding: 56px 0 72px;
}

.page-contact .cta-band {
  display: grid;
  gap: 24px;
  padding: 34px 26px;
  border: 1px solid var(--line-mid);
  border-left: 6px solid var(--red);
  background: var(--paper);
}

.page-contact .cta-band__text h2 {
  font-size: 24px;
  font-weight: 900;
  margin-bottom: 12px;
}

.page-contact .cta-band__text p {
  font-size: 15px;
  color: var(--gray);
  max-width: 52em;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-contact .hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--line-mid);
  }

  .page-contact .hero-meta__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 14px 16px 14px 0;
    border-bottom: none;
    border-right: 1px solid var(--line);
  }

  .page-contact .hero-meta__item:last-child {
    border-right: none;
  }

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

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

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    min-width: 720px;
  }

  .page-contact .flow__node {
    padding: 26px 0 0;
    border-left: none;
    border-top: 1px solid var(--line-mid);
  }

  .page-contact .flow__node:last-child {
    border-top-color: var(--line-mid);
  }

  .page-contact .flow__dot {
    left: 0;
    top: -6px;
    border-width: 2px;
  }

  .page-contact .section-head h2 {
    font-size: 34px;
  }

  .page-contact .apple-grid__body h2,
  .page-contact .geo-grid__body h2 {
    font-size: 30px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
    align-items: start;
    gap: 60px;
    padding: 30px 0 68px;
  }

  .page-contact .contact-hero__intro h1 {
    font-size: 50px;
  }

  .page-contact .apple-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    align-items: start;
    gap: 56px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-card--cyan {
    margin-top: 22px;
  }

  .page-contact .channel-card--gold {
    margin-top: -14px;
  }

  .page-contact .speed-grid {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    align-items: start;
    gap: 48px;
  }

  .page-contact .geo-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
  }

  .page-contact .cta-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 40px 36px;
  }

  .page-contact .cta-band__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-contact .contact-apple,
  .page-contact .contact-channels,
  .page-contact .contact-enterprise,
  .page-contact .contact-speed,
  .page-contact .contact-geo {
    padding: 84px 0;
  }

  .page-contact .section-head h2 {
    font-size: 38px;
  }

  .page-contact .apple-grid__body h2,
  .page-contact .geo-grid__body h2 {
    font-size: 34px;
  }
}

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

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