.page-contact {
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 30px;
  padding-bottom: 48px;
}
.page-contact .contact-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.page-contact .contact-hero .eyebrow::before {
  content: "";
  width: 52px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}
.page-contact .contact-hero h1 {
  margin: 18px 0 0;
  font-size: clamp(30px, 5.6vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--frost);
  max-width: 15ch;
}
.page-contact .contact-hero .lead {
  margin-top: 22px;
  max-width: 64ch;
  color: var(--mist);
  font-size: 16.5px;
  line-height: 1.85;
}
.page-contact .contact-cta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 渠道区 ---------- */
.page-contact .contact-channels {
  padding-top: 24px;
}
.page-contact .channel-layout {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-contact .channel-list {
  border-top: 1px solid var(--steel);
}

.page-contact .channel {
  position: relative;
  margin: 0 -16px;
  padding: 26px 16px;
  border-bottom: 1px solid var(--steel);
  display: grid;
  gap: 10px;
  transition: background var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}
.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: linear-gradient(90deg, rgba(127, 182, 217, 0.09), rgba(79, 209, 197, 0.03) 62%, transparent);
  box-shadow: inset 2px 0 0 var(--blue);
}

.page-contact .channel__tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}

.page-contact .channel__value {
  margin: 2px 0 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(17px, 2.4vw, 23px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--frost);
  word-break: break-all;
  line-height: 1.35;
}

.page-contact .channel__desc {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-contact .copy-btn {
  justify-self: start;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(79, 209, 197, 0.42);
  border-radius: var(--r);
  padding: 8px 15px;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-contact .copy-btn:hover {
  background: rgba(79, 209, 197, 0.13);
  border-color: var(--cyan);
  color: var(--frost);
}

.page-contact .channel-visual {
  position: relative;
  border-radius: var(--r);
  overflow: hidden;
}
.page-contact .channel-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r);
  filter: saturate(0.72) contrast(1.06) brightness(0.94);
}
.page-contact .channel-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--steel);
  border-radius: var(--r);
  pointer-events: none;
}
.page-contact .channel-visual .figure__cap {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 邮件写法 ---------- */
.page-contact .contact-mail .section__lead {
  margin-top: 12px;
  max-width: 60ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}
.page-contact .mail-grid {
  margin-top: 38px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--steel);
  border: 1px solid var(--steel);
  border-radius: var(--r);
  overflow: hidden;
}
.page-contact .mail-block {
  background: var(--carbon);
  padding: 28px 22px 30px;
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-contact .mail-block__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--blue);
}
.page-contact .mail-block h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--frost);
  letter-spacing: -0.01em;
}
.page-contact .mail-block p {
  margin: 0;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
}
.page-contact .mail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-contact .mail-list li {
  position: relative;
  padding-left: 18px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.7;
}
.page-contact .mail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 受理流程 ---------- */
.page-contact .contact-flow .section__lead {
  margin-top: 12px;
  max-width: 58ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}
.page-contact .flow {
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  position: relative;
}
.page-contact .flow__step {
  position: relative;
  padding-top: 42px;
}
.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 1.5px solid var(--blue);
  box-shadow: 0 0 0 5px rgba(127, 182, 217, 0.09);
  box-sizing: border-box;
}
.page-contact .flow__no {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}
.page-contact .flow__step h3 {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--frost);
}
.page-contact .flow__step p {
  margin: 10px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 服务时段 ---------- */
.page-contact .hours-panel {
  border: 1px solid var(--steel);
  border-radius: var(--r);
  background: linear-gradient(148deg, var(--carbon) 0%, var(--ink) 78%);
  padding: 30px 22px 34px;
  display: grid;
  gap: 28px;
}
.page-contact .hours-copy h2 {
  margin: 14px 0 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--frost);
}
.page-contact .hours-copy p {
  margin: 14px 0 0;
  max-width: 58ch;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}
.page-contact .hours-stats {
  margin: 0;
  display: grid;
  gap: 0;
}
.page-contact .hours-stats > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--steel);
}
.page-contact .hours-stats > div:first-child {
  border-top: 1px dashed var(--steel);
}
.page-contact .hours-stats dt {
  color: var(--mist);
  font-size: 13.5px;
}
.page-contact .hours-stats dd {
  margin: 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  letter-spacing: 0.03em;
  color: var(--frost);
  white-space: nowrap;
}

/* ---------- 投稿与合作 ---------- */
.page-contact .contact-contrib .section__lead {
  margin-top: 12px;
  max-width: 58ch;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}
.page-contact .contrib-grid {
  margin-top: 38px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-contact .contrib-card {
  position: relative;
  padding: 26px 22px 28px;
  border: 1px solid var(--steel);
  border-radius: var(--r);
  background: linear-gradient(160deg, rgba(46, 55, 66, 0.32), transparent 62%);
  display: grid;
  gap: 12px;
  align-content: start;
  transition: border-color var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}
.page-contact .contrib-card:hover {
  border-color: var(--brushed);
  transform: translateY(-2px);
}
.page-contact .contrib-card h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--frost);
}
.page-contact .contrib-card p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}
.page-contact .contrib-card .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 地址 ---------- */
.page-contact .address-grid {
  align-items: center;
  row-gap: 32px;
}
.page-contact .address-line {
  margin: 18px 0 0;
  font-family: var(--mono);
  font-size: 15.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--frost);
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
}
.page-contact .address-copy > p {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}
.page-contact .address-note {
  font-size: 13.5px !important;
  color: var(--brushed) !important;
  filter: brightness(1.5);
}
.page-contact .address-figure {
  margin: 0;
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--steel);
}
.page-contact .address-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.05) brightness(0.92);
}

/* ---------- 站点主体 ---------- */
.page-contact .contact-legal {
  padding-bottom: 72px;
}
.page-contact .legal-panel {
  border-top: 1px solid var(--steel);
  padding-top: 30px;
  display: grid;
  gap: 22px;
}
.page-contact .legal-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-contact .legal-lock {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--r);
  border: 1px solid var(--steel);
  color: var(--cyan);
  flex: none;
}
.page-contact .legal-panel h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--frost);
}
.page-contact .legal-list {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.page-contact .legal-list > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--steel);
}
.page-contact .legal-list dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-contact .legal-list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  color: var(--frost);
  word-break: break-all;
}
.page-contact .legal-tail {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
}
.page-contact .legal-tail a {
  color: var(--blue);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .mail-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .contrib-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: 44px;
    padding-bottom: 64px;
  }
  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 56px;
    align-items: start;
  }
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }
  .page-contact .flow::before {
    content: "";
    position: absolute;
    top: 14.5px;
    left: 8px;
    right: 8px;
    height: 1px;
    background: linear-gradient(90deg, var(--blue), var(--cyan));
    opacity: 0.42;
  }
  .page-contact .hours-panel {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
    padding: 46px 48px;
  }
  .page-contact .legal-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
}

@media (min-width: 1120px) {
  .page-contact .channel-visual {
    position: sticky;
    top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .contrib-card,
  .page-contact .copy-btn {
    transition: none;
  }
  .page-contact .contrib-card:hover {
    transform: none;
  }
}