.page-contact {
  --contact-rule: 1px solid var(--line);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  border-bottom: var(--contact-rule);
  background:
    linear-gradient(180deg, rgba(122, 92, 255, 0.12), rgba(11, 27, 43, 0) 60%),
    radial-gradient(130% 90% at 88% 4%, rgba(53, 224, 208, 0.10), rgba(11, 27, 43, 0) 62%);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--grid) * 1.6);
  padding: calc(var(--grid) * 1.8) 0 calc(var(--grid) * 2.2);
}

.page-contact .contact-hero__kicker {
  margin: 0;
  font-family: var(--font-editorial);
  font-size: 0.86rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0.35em 0 0.5em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  max-width: 48ch;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--paper);
}

.page-contact .contact-ways {
  margin: calc(var(--grid) * 1.4) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--contact-rule);
}

.page-contact .contact-way {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3rem 1rem;
  padding: 0.9rem 0;
  border-bottom: var(--contact-rule);
}

.page-contact .contact-way__label {
  flex: 0 0 5.5rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-contact .contact-way__value {
  flex: 1 1 12rem;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.4vw, 1.3rem);
  line-height: 1.5;
  color: var(--paper);
  letter-spacing: 0.01em;
  word-break: break-all;
}

.page-contact .contact-way__value--mail {
  color: var(--cyan);
}

.page-contact .contact-way__em {
  font-style: normal;
  color: var(--orange);
  font-weight: 700;
}

.page-contact .contact-way .copy-btn {
  flex: 0 0 auto;
}

.page-contact .contact-hero__hint {
  margin: calc(var(--grid) * 0.9) 0 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .contact-figure {
  margin: 0;
  align-self: start;
  background: var(--ink-2);
  border: var(--contact-rule);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-contact .contact-figure__cap {
  padding: 0.85rem 1rem;
  border-top: var(--contact-rule);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--stone);
}

/* ---------- 渠道分工 ---------- */
.page-contact .channel-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  margin-bottom: calc(var(--grid) * 1.2);
}

.page-contact .channel-jump a {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  border: var(--contact-rule);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--stone);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .channel-jump a:hover,
.page-contact .channel-jump a:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .channel-rows {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--contact-rule);
}

.page-contact .channel-row {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.4rem 0.8rem;
  padding: 1.1rem 0.5rem 1.1rem 0;
  border-bottom: var(--contact-rule);
  scroll-margin-top: 6rem;
  transition: background-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-contact .channel-row__no {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 0.3rem;
}

.page-contact .channel-row__body h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .channel-row__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--stone);
}

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

.page-contact .channel-row__route {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.55rem;
}

.page-contact .channel-row__route .mono-text {
  font-size: 0.8rem;
  color: var(--paper);
}

.page-contact .channel-row:target {
  background: var(--cyan-soft);
  box-shadow: inset 3px 0 0 var(--cyan);
}

/* ---------- 标题规范 ---------- */
.page-contact .prefix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: var(--contact-rule);
}

.page-contact .prefix-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.1rem;
  background: var(--ink-2);
}

.page-contact .prefix-card__code {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .prefix-card__note {
  flex: 1;
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .prefix-card .copy-btn {
  align-self: flex-start;
}

.page-contact .prefix-foot {
  margin: calc(var(--grid) * 1.2) 0 0;
  max-width: 68ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 合作边界 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--grid) * 1.2);
}

.page-contact .partner-panel .panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  justify-content: space-between;
}

.page-contact .partner-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  color: var(--paper);
}

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

.page-contact .partner-list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.7rem;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .partner-list li:last-child {
  margin-bottom: 0;
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.55rem;
  height: 1px;
  background: var(--cyan);
}

.page-contact .partner-panel--no .partner-list li::before {
  background: var(--clay);
}

.page-contact .partner-panel--no .partner-list li {
  color: var(--stone);
}

/* ---------- 运营联系信息带 ---------- */
.page-contact .address-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--grid) * 1.2);
  padding: calc(var(--grid) * 1.2);
  border: var(--contact-rule);
  background: linear-gradient(120deg, rgba(30, 67, 89, 0.6), rgba(16, 42, 62, 0.95));
  clip-path: polygon(0 var(--cut), var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .address-figure {
  margin: 0;
  border: var(--contact-rule);
  background: var(--ink);
}

.page-contact .address-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .address-band__label {
  display: block;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .address-band__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 2.6vw, 1.4rem);
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .address-band__meta {
  margin: calc(var(--grid) * 1.1) 0 0;
  padding: calc(var(--grid) * 0.9) 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-contact .address-band__meta li {
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .address-band__meta li + li {
  margin-top: 0.35rem;
}

.page-contact .address-band__meta .mono-text {
  color: var(--paper);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

/* ---------- 沟通问答 ---------- */
.page-contact .faq-list {
  border-top: var(--contact-rule);
}

.page-contact .faq-list .fold {
  border-bottom: var(--contact-rule);
}

.page-contact .faq-list .fold__body {
  padding-bottom: 1.1rem;
}

.page-contact .faq-list .fold__body p {
  margin: 0;
  max-width: 72ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--stone);
}

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

.page-contact .faq-foot {
  margin: calc(var(--grid) * 1.2) 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--stone);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .prefix-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .channel-row {
    grid-template-columns: 3rem 1fr;
    padding-right: 0.75rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: calc(var(--grid) * 2);
    padding: calc(var(--grid) * 2.4) 0 calc(var(--grid) * 2.8);
    align-items: start;
  }

  .page-contact .contact-way__label {
    flex-basis: 6.5rem;
  }

  .page-contact .channel-row {
    grid-template-columns: 3.25rem 1fr 14rem;
    align-items: start;
    padding-right: 0;
  }

  .page-contact .channel-row__route {
    grid-column: 3;
    justify-content: flex-end;
    margin-top: 0.2rem;
  }

  .page-contact .partner-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .address-band {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: center;
    gap: calc(var(--grid) * 1.6);
    padding: calc(var(--grid) * 1.6);
  }
}

@media (min-width: 1100px) {
  .page-contact .prefix-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-jump a,
  .page-contact .channel-row {
    transition: none;
  }
}
</main>