.page-contact {
  --pc-radius: 28px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 6vw, 64px);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 48px);
  margin-top: clamp(22px, 4vw, 40px);
}

@media (min-width: 920px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(28px, 5vw, 72px);
  }
}

.page-contact .hero-main h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--indigo);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-contact .hero-lead {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .hero-index {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(16px, 2.4vw, 24px);
  box-shadow: var(--shadow-card);
}

.page-contact .hero-index__cap {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--whistle-deep);
}

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

.page-contact .hero-index__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-contact .hero-index__list .ix {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-contact .hero-index__list .txt strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.25;
  color: var(--indigo);
}

.page-contact .hero-index__list .txt em {
  display: block;
  margin-top: 2px;
  font-style: normal;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 通用章节头 ---------- */
.page-contact .band {
  padding-block: clamp(40px, 6.5vw, 84px);
}

.page-contact .sec-head {
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-contact .sec-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.15;
  color: var(--indigo);
  margin: 10px 0 0;
}

.page-contact .sec-lead {
  margin: 12px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .sec-head--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 820px) {
  .page-contact .sec-head--split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(20px, 4vw, 56px);
  }
  .page-contact .sec-head--split .sec-lead {
    margin: 0;
  }
}

.page-contact .sec-title--light {
  color: var(--cream);
}

.page-contact .sec-lead--light {
  color: rgba(245, 239, 227, 0.74);
}

.page-contact .eyebrow--light {
  color: var(--neon);
}

/* ---------- 合作方向 ---------- */
.page-contact .dir-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

@media (min-width: 800px) {
  .page-contact .dir-band {
    grid-template-columns: 1.25fr 1.05fr 1.15fr 0.85fr;
    gap: 8px;
  }
}

.page-contact .dir-tab {
  display: grid;
  gap: 5px;
  text-align: left;
  padding: 15px 17px 17px;
  font: inherit;
  color: var(--indigo);
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--line);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}

.page-contact .dir-tab:hover {
  border-top-color: var(--whistle);
}

.page-contact .dir-tab:focus-visible {
  outline: 2px solid var(--whistle);
  outline-offset: 2px;
}

.page-contact .dir-tab[aria-selected="true"] {
  background: var(--indigo);
  border-color: var(--indigo);
  border-top-color: var(--whistle);
  color: var(--cream);
}

.page-contact .dir-tab__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-contact .dir-tab[aria-selected="true"] .dir-tab__idx {
  color: var(--neon);
}

.page-contact .dir-tab__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.2;
}

.page-contact .dir-tab__hint {
  font-size: 12px;
  line-height: 1.55;
  color: var(--stone);
}

.page-contact .dir-tab[aria-selected="true"] .dir-tab__hint {
  color: rgba(245, 239, 227, 0.68);
}

.page-contact .dir-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(18px, 3vw, 28px);
}

@media (min-width: 1000px) {
  .page-contact .dir-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

.page-contact .dir-panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(18px, 3vw, 30px);
}

.page-contact .dir-panel[hidden] {
  display: none;
}

.page-contact .dir-panel__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.25;
  color: var(--indigo);
  margin: 0 0 6px;
}

.page-contact .fact-list {
  margin: 0;
}

.page-contact .fact-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

@media (min-width: 640px) {
  .page-contact .fact-row {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }
}

.page-contact .fact-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--field);
  padding-top: 3px;
}

.page-contact .fact-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-contact .fact-row dd a {
  color: var(--whistle-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .fact-row dd a:hover {
  color: var(--whistle);
}

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

.page-contact .dir-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-contact .dir-figure .media__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--stone);
}

/* ---------- 流程 ---------- */
.page-contact .flow {
  background: var(--indigo);
}

.page-contact .flow-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .flow-banner {
  position: relative;
  margin: 0 0 clamp(24px, 4vw, 44px);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-contact .flow-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 32, 58, 0.12) 0%, rgba(20, 32, 58, 0.76) 100%);
  pointer-events: none;
}

.page-contact .flow-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(140px, 24vw, 240px);
  object-fit: cover;
}

.page-contact .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

@media (min-width: 880px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .flow-step {
  position: relative;
  padding-top: 22px;
  border-top: 1px solid rgba(245, 239, 227, 0.22);
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px var(--indigo);
}

.page-contact .flow-step__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(245, 239, 227, 0.6);
}

.page-contact .flow-step h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.25;
  color: var(--cream);
}

.page-contact .flow-step__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(245, 239, 227, 0.78);
}

.page-contact .flow-step__meta {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 8px;
  margin: 0 0 6px;
  font-size: 12.5px;
  line-height: 1.55;
  color: rgba(245, 239, 227, 0.72);
}

.page-contact .flow-step__meta span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--neon);
  padding-top: 2px;
}

/* ---------- 来函清单 ---------- */
.page-contact .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 760px) {
  .page-contact .brief-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

.page-contact .brief-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.page-contact .brief-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--whistle-deep);
  padding-top: 2px;
}

.page-contact .brief-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .brief-item strong {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.3;
  color: var(--indigo);
}

/* ---------- 响应时效 ---------- */
.page-contact .response-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 880px) {
  .page-contact .response-grid {
    grid-template-columns: 1.15fr 1fr 0.85fr;
    gap: 16px;
  }
}

.page-contact .resp-card {
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--whistle);
  border-radius: var(--r-md);
}

.page-contact .resp-card--alt {
  border-left-color: var(--field);
  background: var(--cream);
}

.page-contact .resp-card--quiet {
  border-left-color: var(--stone);
  background: var(--cream);
}

.page-contact .resp-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-contact .resp-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.5;
  color: var(--indigo);
}

.page-contact .resp-time--mono {
  font-size: 20px;
  color: var(--field);
}

.page-contact .resp-time--small {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 19px;
  color: var(--indigo);
}

.page-contact .resp-note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .resp-note a {
  color: var(--whistle-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-card {
  background: var(--indigo);
  border-radius: var(--r-lg);
  padding: clamp(22px, 4vw, 48px);
  box-shadow: var(--shadow-card);
}

.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
}

@media (min-width: 780px) {
  .page-contact .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(24px, 4vw, 56px);
  }
}

.page-contact .cc-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-contact .cc-value {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--cream);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .cc-value--mono {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(15px, 2vw, 21px);
  letter-spacing: 0.01em;
}

.page-contact .cc-value--neon {
  font-family: var(--font-mono);
  color: var(--neon);
  letter-spacing: 0.03em;
}

.page-contact .cc-hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(245, 239, 227, 0.68);
}

.page-contact .contact-foot {
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 18px;
  border-top: 1px solid rgba(245, 239, 227, 0.18);
}

.page-contact .cf-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(245, 239, 227, 0.5);
}

.page-contact .cf-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin: 0 0 6px;
  font-size: 12.5px;
  line-height: 1.65;
  color: rgba(245, 239, 227, 0.62);
}

@media (min-width: 520px) {
  .page-contact .cf-line {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 10px;
  }
}

.page-contact .cf-k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: rgba(245, 239, 227, 0.42);
  padding-top: 2px;
}

.page-contact .cf-v {
  overflow-wrap: anywhere;
}

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

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