.page-contact {
  --contact-panel: #122A45;
  --contact-dim: rgba(195, 205, 214, .72);
  display: block;
  background: var(--night);
  color: var(--grey);
  overflow-x: hidden;
}

.page-contact .mono {
  font-family: var(--font-mono);
}

.page-contact .eyebrow {
  color: var(--blue-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-contact .section-title {
  color: var(--ivory);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.25;
  font-size: clamp(23px, 3.6vw, 34px);
  margin: 10px 0 0;
}

.page-contact .lede {
  color: var(--grey);
  font-size: 16px;
  line-height: 1.75;
  margin: 12px 0 0;
  max-width: 40em;
}

.page-contact .breadcrumb {
  margin-bottom: 20px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-open {
  padding: clamp(28px, 5vw, 58px) 0 clamp(24px, 4vw, 40px);
}

.page-contact .contact-open-grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-contact .contact-open h1 {
  color: var(--ivory);
  font-size: clamp(29px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  font-weight: 900;
  margin: 12px 0 16px;
}

.page-contact .contact-lede {
  color: var(--grey);
  font-size: 17px;
  line-height: 1.78;
  max-width: 34em;
  margin: 0 0 24px;
}

.page-contact .contact-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-quick li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 18px;
  background: linear-gradient(140deg, rgba(15, 76, 63, .9), rgba(15, 76, 63, .62));
  border: 1px solid var(--line-soft);
  border-radius: 14px 14px 14px 4px;
}

.page-contact .qk-label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--contact-dim);
}

.page-contact .qk-value {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-contact .qk-value:hover,
.page-contact .qk-value:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.page-contact .contact-open-media {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-card);
  border-bottom-left-radius: 6px;
  overflow: hidden;
  background: var(--table-shadow);
  box-shadow: var(--shadow-card);
}

.page-contact .contact-open-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

.page-contact .contact-open-media figcaption {
  padding: 12px 16px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--contact-dim);
  background: rgba(11, 21, 38, .7);
}

/* ---------- 渠道卡 ---------- */
.page-contact .contact-channels {
  padding: clamp(34px, 6vw, 74px) 0;
}

.page-contact .channel-grid {
  margin-top: 30px;
  display: grid;
  background: linear-gradient(150deg, rgba(15, 76, 63, .58), rgba(16, 32, 58, .92) 64%);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  border-bottom-left-radius: 6px;
  overflow: hidden;
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  padding: 26px 22px 24px;
  border-bottom: 1px solid var(--line);
  transition: transform .22s ease, border-color .22s ease, background-color .22s ease;
}

.page-contact .channel-card:last-child {
  border-bottom: 0;
}

.page-contact .channel-idx {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--blue-line);
  margin: 0 0 14px;
}

.page-contact .channel-name {
  color: var(--ivory);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.01em;
  margin: 0 0 12px;
}

.page-contact .channel-for {
  color: var(--grey);
  font-size: 15px;
  line-height: 1.72;
  margin: 0 0 18px;
  flex: 1 1 auto;
}

.page-contact .channel-value {
  display: block;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  word-break: break-all;
  text-decoration: none;
  padding: 9px 12px;
  border: 1px solid rgba(226, 167, 58, .42);
  border-radius: 10px 10px 10px 3px;
  background: rgba(11, 21, 38, .45);
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.page-contact .channel-value:hover,
.page-contact .channel-value:focus-visible {
  color: var(--gold-soft);
  border-color: var(--gold-soft);
  background: rgba(226, 167, 58, .12);
}

.page-contact .channel-hint {
  color: var(--contact-dim);
  font-size: 13px;
  line-height: 1.66;
  margin: 14px 0 0;
}

.page-contact .channel-link {
  align-self: flex-start;
  margin-top: 18px;
}

/* ---------- 站内提交 ---------- */
.page-contact .contact-help {
  padding: clamp(30px, 5vw, 66px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-help-grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-contact .help-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .help-steps li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  font-size: 16px;
  line-height: 1.72;
  color: var(--ivory);
}

.page-contact .step-idx {
  font-size: 15px;
  font-weight: 700;
  color: var(--red);
  letter-spacing: .06em;
}

.page-contact .help-note {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  border-bottom-left-radius: 6px;
  background: rgba(26, 39, 51, .58);
}

.page-contact .help-note-idx {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--blue-line);
  margin: 0 0 12px;
}

.page-contact .help-note-title {
  color: var(--ivory);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 12px;
}

.page-contact .help-note-text {
  color: var(--grey);
  font-size: 15px;
  line-height: 1.74;
  margin: 0 0 12px;
}

.page-contact .help-note-text:last-child {
  margin-bottom: 0;
}

/* ---------- 常见咨询 ---------- */
.page-contact .contact-topics {
  padding: clamp(30px, 5vw, 66px) 0;
}

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

.page-contact .topic-list li {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .topic-idx {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--blue-line);
}

.page-contact .topic-list h3 {
  color: var(--ivory);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 8px;
}

.page-contact .topic-list p {
  color: var(--grey);
  font-size: 15px;
  line-height: 1.74;
  margin: 0;
}

.page-contact .topic-link {
  justify-self: start;
  align-self: center;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(226, 167, 58, .5);
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .topic-link:hover,
.page-contact .topic-link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

/* ---------- 提交清单 ---------- */
.page-contact .contact-brief {
  padding: clamp(32px, 5vw, 70px) 0;
}

.page-contact .contact-brief-grid {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-contact .brief-tip {
  margin: 18px 0 0;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-contact .brief-pad {
  padding: 26px 22px;
  background: var(--ivory);
  color: var(--ink);
  border-radius: var(--radius-card);
  border-bottom-left-radius: 6px;
  box-shadow: var(--shadow-card);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .check-item {
  position: relative;
}

.page-contact .check-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .check-label {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  cursor: pointer;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.62;
}

.page-contact .check-box {
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 2px solid var(--ink);
  border-radius: 5px;
  background: transparent;
  transition: background-color .18s ease, border-color .18s ease;
}

.page-contact .check-input:checked + .check-label .check-box {
  background: var(--ok);
  border-color: var(--ok);
}

.page-contact .check-input:checked + .check-label .check-box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 7px;
  height: 12px;
  border-right: 3px solid #fff;
  border-bottom: 3px solid #fff;
  transform: rotate(42deg);
}

.page-contact .check-input:checked + .check-label .check-text {
  color: rgba(11, 14, 18, .6);
}

.page-contact .check-input:focus-visible + .check-label .check-box {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .check-text b {
  font-weight: 800;
}

/* ---------- 信件寄送 ---------- */
.page-contact .contact-post {
  padding: clamp(30px, 5vw, 64px) 0;
}

.page-contact .post-panel {
  position: relative;
  padding: clamp(26px, 4vw, 46px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  border-bottom-left-radius: 6px;
  overflow: hidden;
  background-image:
    repeating-linear-gradient(0deg, rgba(110, 143, 163, .13) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, rgba(110, 143, 163, .13) 0 1px, transparent 1px 40px),
    linear-gradient(160deg, rgba(26, 39, 51, .92), rgba(11, 21, 38, .96));
}

.page-contact .post-addr {
  color: var(--ivory);
  font-size: clamp(19px, 2.8vw, 26px);
  font-weight: 700;
  letter-spacing: .02em;
  margin: 16px 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
  word-break: break-all;
}

.page-contact .post-text {
  color: var(--grey);
  font-size: 16px;
  line-height: 1.78;
  max-width: 44em;
  margin: 0;
}

.page-contact .post-note {
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--blue-line);
}

/* ---------- 收束 ---------- */
.page-contact .contact-closing {
  margin: clamp(30px, 5vw, 62px) 0 0;
}

.page-contact .contact-closing img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1500 / 420;
  object-fit: cover;
  filter: saturate(.86) brightness(.78);
}

.page-contact .contact-closing figcaption {
  padding: 14px 18px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--contact-dim);
}

.page-contact .contact-tail {
  margin: 26px 0 clamp(34px, 5vw, 64px);
  font-size: 15px;
  line-height: 1.78;
  color: var(--grey);
}

.page-contact .contact-tail a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(226, 167, 58, .45);
}

.page-contact .contact-tail a:hover,
.page-contact .contact-tail a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .topic-list li {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-card {
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-contact .channel-card:last-child {
    border-right: 0;
  }

  .page-contact .channel-card:hover {
    transform: translateY(-2px);
    border-color: rgba(226, 167, 58, .55);
  }

  .page-contact .contact-help-grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, .78fr);
    gap: 46px;
  }

  .page-contact .contact-brief-grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 48px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-open-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 62px;
  }
}

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

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