.page-contact {
  padding-left: var(--rail-w);
  padding-top: clamp(14px, 2.6vw, 30px);
  padding-bottom: clamp(30px, 5vw, 62px);
}

.page-contact .lead {
  color: var(--text-dim);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(16px, 3vw, 34px) 0 clamp(20px, 3.4vw, 38px);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(28px, 6.4vw, 42px);
  line-height: 1.2;
  color: var(--text);
}

.page-contact .contact-hero__lead {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
}

.page-contact .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-contact .contact-hero__note {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-mute);
}

/* ---------- 区块骨架 ---------- */
.page-contact .contact-section {
  padding: clamp(26px, 4vw, 52px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-about {
  border-bottom: 0;
}

.page-contact .contact-section .section-head__note {
  max-width: 68ch;
}

/* ---------- 三条渠道 ---------- */
.page-contact .contact-channels__layout {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-contact .contact-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-card {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 33, 58, .92), rgba(14, 22, 38, .94));
  transition: border-color .2s ease, background .2s ease, transform .18s ease;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 2px;
  background: var(--accent, var(--cyan));
  opacity: .85;
  transition: top .22s ease, bottom .22s ease;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: var(--accent, var(--cyan));
  background: linear-gradient(180deg, rgba(22, 33, 58, 1), rgba(14, 22, 38, .98));
}

.page-contact .contact-card:hover::before,
.page-contact .contact-card:focus-within::before {
  top: 10px;
  bottom: 10px;
}

.page-contact .contact-card:active {
  transform: translateY(1px);
}

.page-contact .contact-card--mail { --accent: var(--cyan); }
.page-contact .contact-card--phone { --accent: var(--orange); }
.page-contact .contact-card--addr { --accent: var(--violet); }

.page-contact .contact-card__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .contact-card__value {
  display: block;
  margin: 0 0 10px;
  font-size: clamp(13px, 1.3vw, 14.5px);
  line-height: 1.65;
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-card__value.mono {
  font-family: var(--font-mono);
  letter-spacing: -.01em;
}

.page-contact a.contact-card__value {
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
  transition: color .18s ease, border-color .18s ease;
}

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

.page-contact .contact-card--addr .contact-card__value {
  font-family: var(--font-body);
}

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

.page-contact .contact-channels__figure {
  margin: 0;
  align-self: start;
}

.page-contact .contact-channels__figure .media__frame {
  max-width: 320px;
}

.page-contact .media__frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--rail-bg);
}

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

.page-contact .media__caption {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--text-mute);
}

/* ---------- 标题写法 ---------- */
.page-contact .contact-subject__layout {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(18px, 2.6vw, 30px);
  align-items: start;
}

.page-contact .contact-templates {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-templates li {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  background: var(--slab);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: 6px;
  padding: 9px 12px;
  white-space: nowrap;
  overflow-x: auto;
}

.page-contact .contact-subject__aside a,
.page-contact .paper a {
  color: var(--paper-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-process__body {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(18px, 2.6vw, 30px);
  align-items: start;
}

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

.page-contact .contact-flow > li {
  position: relative;
  padding: 0 0 24px 32px;
  margin-left: 8px;
  border-left: 1px solid var(--line);
}

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

.page-contact .contact-flow > li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--cyan);
}

.page-contact .contact-flow > li:last-child::before {
  border-color: var(--orange);
}

.page-contact .contact-flow__step {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--text-mute);
}

.page-contact .contact-flow__title {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .contact-flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

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

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

.page-contact .contact-process__timing {
  margin: 14px 0 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(22, 33, 58, .5);
}

/* ---------- 适用范围 ---------- */
.page-contact .contact-scope__grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(18px, 2.6vw, 30px);
  align-items: start;
}

.page-contact .contact-do {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-do > li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .contact-do > li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .78em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

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

.page-contact .contact-fold .fold__body ul {
  margin: 0 0 12px;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.page-contact .contact-fold .fold__body li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .contact-fold .fold__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-mute);
}

.page-contact .contact-callout {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .contact-callout p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 维护与协作 ---------- */
.page-contact .contact-about__grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-contact .contact-about__main h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 27px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-contact .contact-about__main p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

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

.page-contact .contact-stats {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  margin-top: 14px;
}

/* ---------- 备案尾条 ---------- */
.page-contact .contact-colophon {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: clamp(26px, 4vw, 46px);
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-mute);
}

.page-contact .contact-colophon .mono {
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.page-contact .contact-colophon a {
  color: var(--text-dim);
  text-underline-offset: 3px;
}

.page-contact .contact-colophon a:hover {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-contact .contact-templates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
  }

  .page-contact .contact-card--phone {
    margin-top: 28px;
  }

  .page-contact .contact-card--addr {
    margin-top: 56px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-channels__layout {
    grid-template-columns: minmax(0, 1fr) 240px;
  }

  .page-contact .contact-subject__layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  }

  .page-contact .contact-process__body {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .contact-scope__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-contact .contact-about__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-card::before,
  .page-contact a.contact-card__value {
    transition: none;
  }
}