.page-contact {
  --contact-stripe: 3px;
  --contact-lift: 34px;
  --contact-card-pad: clamp(20px, 3vw, 30px);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(20px, 4vw, 48px));
  padding-bottom: clamp(26px, 4.5vw, 56px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-hairline) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-hairline) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.4;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 72%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-contact .contact-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__split {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .contact-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.2vw, 64px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 38em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--text-muted);
}

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

.page-contact .contact-hero__signals li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--grid-hairline);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
}

.page-contact .contact-hero__media {
  margin: clamp(22px, 3.4vw, 40px) 0 0;
}

.page-contact .media-frame__inner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 渠道卡 */
.page-contact .contact-head {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-contact .channel-deck {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .channel-card {
  position: relative;
  min-width: 0;
  padding: var(--contact-card-pad);
  background: var(--moss-panel);
  border: 1px solid var(--grid-hairline);
  border-top: var(--contact-stripe) solid var(--lime-signal);
  border-radius: var(--radius);
  transition: background 0.18s var(--ease), border-top-color 0.18s var(--ease);
}

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

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

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

.page-contact .channel-card__flag {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-contact .channel-card__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-contact .channel-card__value {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums slashed-zero;
  font-size: clamp(14px, 1.8vw, 17px);
  line-height: 1.55;
  color: var(--lime-soft);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-card__use {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--grid-hairline);
  font-size: 14px;
  line-height: 1.74;
  color: var(--text-muted);
}

.page-contact .channel-note {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

/* 反馈类型 */
.page-contact .contact-routing {
  border-top: 1px solid var(--grid-hairline);
  border-bottom: 1px solid var(--grid-hairline);
  background: linear-gradient(180deg, rgba(14, 32, 25, 0.88), rgba(7, 18, 14, 0) 88%);
}

.page-contact .routing-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 42px);
}

.page-contact .routing-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--grid-hairline);
}

.page-contact .routing-step {
  position: relative;
  min-width: 0;
  margin-bottom: 22px;
  padding: 0 0 22px 24px;
  border-bottom: 1px solid var(--grid-hairline);
}

.page-contact .routing-step:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.page-contact .routing-step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 7px;
  width: 7px;
  height: 7px;
  background: var(--lime-signal);
}

.page-contact .routing-step__no {
  margin: 0 0 6px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber-score);
}

.page-contact .routing-step__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 24px);
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-contact .routing-step__desc {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.74;
  color: var(--text-muted);
}

.page-contact .routing-step__mats {
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px solid var(--grid-hairline);
  border-radius: var(--radius);
  background: rgba(16, 20, 24, 0.72);
}

.page-contact .routing-step__mats ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .routing-step__mats li {
  position: relative;
  padding-left: 17px;
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.page-contact .routing-step__mats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 1px;
  background: var(--lime-signal);
}

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

/* 回复节奏 */
.page-contact .timing-grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-contact .timing-lead {
  margin: 0 0 14px;
  max-width: 22em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-contact .timing-body {
  margin: 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
}

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

.page-contact .timing-list li {
  min-width: 0;
  padding: 13px 0;
  border-bottom: 1px solid var(--grid-hairline);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
}

.page-contact .timing-list b {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-data);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber-score);
}

/* 备案与站点信息 */
.page-contact .contact-legal {
  padding: clamp(26px, 3.6vw, 42px) 0 clamp(30px, 4vw, 48px);
}

.page-contact .legal-block {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--grid-hairline);
}

.page-contact .legal-block__site {
  margin: 0;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.page-contact .legal-block__line {
  margin: 0;
  max-width: 56em;
  font-size: 13px;
  line-height: 1.72;
  color: var(--text-muted);
}

/* 相关入口 */
.page-contact .contact-links {
  border-top: 1px solid var(--grid-hairline);
}

.page-contact .contact-links__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.page-contact .link-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .link-strip li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--grid-hairline);
}

.page-contact .link-strip a {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--lime-signal);
  text-decoration: none;
}

.page-contact .link-strip a:hover {
  color: var(--lime-soft);
}

.page-contact .link-strip span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--lime-signal);
  outline-offset: 2px;
}

@media (hover: hover) {
  .page-contact .channel-card:hover {
    background: #112a21;
    border-top-color: var(--lime-soft);
  }
}

@media (min-width: 820px) {
  .page-contact .contact-hero__split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .channel-deck {
    grid-template-columns: 1.14fr 1fr 0.92fr;
    align-items: start;
  }

  .page-contact .channel-card--phone {
    margin-top: var(--contact-lift);
  }

  .page-contact .channel-card--addr {
    margin-top: calc(var(--contact-lift) * 2);
  }

  .page-contact .routing-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .timing-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .link-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 48px);
  }
}

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

  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
  }
}